Axle

Abstract

The utility model relates to an axle, which comprises a central shell, the axle arm is fixed on the central shell through a plurality of first fasteners; and the oil baffle plate is fixed on the central shell through at least one fastening element, and the fastening element is coaxial with at least one fastener in the plurality of first fasteners and at least one hole in the plurality of preformed holes of the central shell. According to the utility model, the problem that the structural strength of the shell is possibly reduced due to the fact that holes are formed in the shell material is solved.

Description

Technical Field

[0001] A modular chuck for an axle assembly includes a first fastening system or a second fastening system. The first and second fastening systems can be coaxially mounted with existing fasteners and existing holes on the axle assembly housing, thereby mounting the modular chuck to the axle assembly housing. Background Technology

[0002] The axle of a vehicle's (such as an off-highway vehicle) drivetrain structure may include two reduction stages. The first reduction stage includes a bevel gear ratio. The second reduction stage includes a planetary gear train. The reduction stages may be partially engaged or rotationally coupled to an axle assembly (such as a differential assembly). The first axle assembly may include a first differential housing, which may be a central housing housing a differential gear assembly. The second axle assembly may include a second differential housing, which may be a central housing housing a differential gear assembly. The differential gear assemblies of the first and / or second differential housings may include bevel gear ratios. The differential gear assemblies of the first and / or second differential housings may include planetary gear trains. The first and second axle assemblies may include axle half-axle housings that can be secured to their respective first and second differential housings. At least one housing for the axle half-axle may be secured to the first differential housing via fasteners and complementary holes between the first differential housing and the axle half-axle housing. Similarly, at least one housing for the axle half-axle can be secured to the second differential housing via fasteners and complementary holes in the first differential housing and the axle half-axle housing. The differential housing may include multiple first complementary holes, and the axle half-axle housing may include multiple second complementary holes for fasteners. In off-highway vehicles, reducing power loss may become increasingly important, especially as fuel / energy efficiency becomes a greater priority. Splashing or agitation of fluids such as lubricating oil can fill or partially fill the volume of the axle assembly housing, resulting in power loss and reduced efficiency. Fluids can be splashed or agitated by rotating elements (such as gears or shafts) mounted in the axle housing. Lubricants used as fluids may include engine oil. To minimize or mitigate fluid splashing and agitation, baffles (such as slots) may be provided around portions of the rotating elements.

[0003] One of the baffles can be a cutter positioned around a portion of the crown gear. The crown gear can consist of a set of bevel gears. The differential can include a set of bevel gears, which can be mounted in the differential housing. The bevel gear set can distribute rotational energy to the half-axle mounted in the axle assembly. The baffles located around the crown gear prevent splashing or turbulence losses caused by fluid thrown or disturbed when the crown gear rotates. However, the baffles for the crown gear can be installed using specialized fasteners. Fasteners for the baffles can only be installed on the housing after machining or other modifications to the existing housing. For example, a mounting device can be installed on the crown gear on the inner surface of the housing. Mounting brackets can be compatible with the fasteners for the baffles. Mounting brackets can be connected to or physically coupled to the inner surface of the housing. Mounting brackets may increase manufacturing time because of their complex shape and the need for precise assembly. In addition, mounting brackets may require the use of specific tools to shape and install the mounting brackets. The internal shape of the housing may become more complex after mounting brackets are installed. Mounting brackets may disrupt fluid flow. Similarly, there may be more points of degradation compared to other features of the housing, and mounting brackets may be more prone to degradation. If no fixing device is used, additional holes can be machined or manufactured on the housing to complement the baffle fasteners. However, drilling holes in the housing material may reduce the structural strength of the housing. Similarly, holes in the housing may reduce its performance. Utility Model Content

[0004] The inventors of this paper have recognized these and other problems with such systems and have proposed a method that can at least partially solve these problems. In one example, an axle has been developed, comprising: a central housing; an axle arm secured to the central housing by a plurality of first fasteners; and an oil baffle secured to the central housing by at least one fastening element coaxial with at least one of the plurality of first fasteners and at least one of the plurality of pre-drilled holes in the central housing.

[0005] In one example, the fastening element is a screw or bolt, fastened to the baffle via a first existing hole for at least one fastener and a complementary hole in the baffle at the interface between the axle arm and the central housing. The fastener is complementary to an insert that mates with the first existing hole and the complementary hole in the baffle to prevent the fastener from sliding or disengaging from the first existing hole and the baffle hole without deliberate force. The insert includes a head and a collar, wherein the head abuts a surface of the baffle, and the head and collar are positioned around a through-hole in the insert, the collar receiving the fastening element.

[0006] In one example, the fastening element is an engaging element integral with the baffle. The fastening element fastens the baffle to the central housing via a first existing hole for at least one fastener at the interface between the axle arm and the central housing. The fastening element is physically coupled to one of a plurality of mounting seats of the baffle, wherein the plurality of mounting seats extend radially from and can be physically coupled to the surface of the baffle. The fastening element can elastically change shape and increase or decrease its width under force, for example, when inserted into the first existing hole. The fastening element includes a body, a head, and a neck, wherein the body is cylindrical and cylindrical, and the neck is located between the body and the head. The fastening element includes a first edge and a second edge, and a gap between the first edge and the second edge. This gap can widen under force, thereby increasing the width of the fastening element. The gap can also decrease under force, thereby decreasing the width of the fastening element. The first edge and the second edge may include portions of the fastener head and neck.

[0007] It should be understood that the foregoing summary is intended to present the concepts further described in the detailed description in a simplified form. It is not intended to identify the key or essential features of the claimed subject matter, the scope of which is uniquely determined by the claims following the detailed description. Furthermore, the claimed subject matter is not limited to embodiments that address any of the shortcomings pointed out in the foregoing or any part of this disclosure. Attached Figure Description

[0008] Figure 1 An example schematic diagram of a vehicle is shown, which may include the transmission disclosed herein.

[0009] Figure 2 A first view of the axle assembly including the baffle of this disclosure is shown.

[0010] Figure 3 A second view of the axle assembly is shown, including a first housing, a second housing, and a baffle in the first configuration.

[0011] Figure 4 The third view of the axle assembly is shown, including the features and components of the fastening system.

[0012] Figure 5 The fourth view of the axle assembly is shown, with... Figure 3-4 The fastening system is closer to and includes other components and features of the fastening system.

[0013] Figure 6 The fifth view of the axle assembly is shown, including the first housing, the second housing, and the second configured baffle.

[0014] Figure 7 The sixth view shows the axle assembly near the fastening system, including the components and features of the fastening system.

[0015] Figure 8The seventh view shows the baffle with the second configuration. Detailed Implementation

[0016] The following description relates to a fastening system that fastens a baffle to at least one of a plurality of pre-drilled holes in a central housing of an axle assembly and an axle housing. The baffle may be a chuck positioned around a crown gear. The crown gear may consist of a bevel gear assembly system, which may consist of a differential assembly. The axle housing may include a first housing and a second housing. The first housing is a central housing that houses the differential and a complementary bevel gear set. The second housing is the housing of an axle half-axle, such as an axle arm. The first and second housings may be fastened together at an interface by a plurality of first fasteners. The first fasteners secure the first and second housings through a plurality of first holes in the second housing and a plurality of second holes in the first housing. The first and second housings are secured by the first fasteners when the first and second holes are aligned coaxially. The first fasteners may be main boom screws.

[0017] The second hole can be used by different fastening systems for the first and second configured baffles, mounting the respective baffles to features of the first housing. The first embodiment of the baffle may be referred to herein as the first baffle. The first baffle may be compatible with, or comprise, the first configured fastening system or multiple fastening systems. The first configured fastening system may be referred to herein as the first fastening system. The second embodiment of the baffle may be referred to herein as the second baffle. The second baffle may be compatible with, or comprise, the second configured fastening system or multiple fastening systems. The second configured fastening system may be referred to herein as the second fastening system.

[0018] For the first baffle, the first fastening system may include a first fastening element and an insert. The first fastening element may be a fastener, such as a screw or bolt, fastened to the baffle through a first existing hole of at least one fastener on the interface between the axle arm and the central housing and a complementary hole of the baffle. The first existing hole may be one of the aforementioned second holes. The first fastener is complementary to the insert. The insert may mate with the first existing hole and the complementary hole of the baffle. The insert prevents the fastening element from sliding or disengaging from the first existing hole and the baffle hole without deliberate force. The insert includes a head and a collar, wherein the head contacts a surface of the baffle, the head and the collar are positioned around a through-hole of the insert, and the collar may receive the fastening element.

[0019] For the second baffle, the second fastening system may include a second fastening element, which is an engaging element. The second fastening element may be an integral fastener with the baffle, thereby constituting, connecting to, or physically coupling the second fastening element to the second baffle. The second fastening element may fasten the second baffle to the central housing through a first existing hole of at least one fastener on the interface between the axle arm and the central housing. The first existing hole may be one of a plurality of second holes. The second fastening element may be physically coupled to one of a plurality of mounting seats of the baffle, wherein the plurality of mounting seats extend radially from and are physically coupled to the surface of the baffle. There may be a plurality of second fastening elements, wherein one second fastening element may be physically coupled to each of the plurality of mounting seats. The second fastening element may elastically change shape and increase or decrease in width under applied force. The fastening element includes a body, a head, and a neck, wherein the body is cylindrical or columnar, and the neck is located between the body and the head. The fastening element includes a first edge and a second edge, and a gap between the first edge and the second edge. The gap between the first and second prisms can widen under force, thereby increasing the width of the second fastening element. Similarly, the gap between the first and second prisms can contract under force, thereby reducing the width of the second fastening element. The first and second prisms may include the head and neck of the second fastening element. When the first and second prisms expand, the first fastening element may be unable to pull out the fastener or the second baffle. The first fastening element can secure the second baffle to the first housing.

[0020] Figure 1 A schematic diagram of a vehicle example that may include the transmissions disclosed herein is shown. Figure 2 A first view of the axle assembly, including the baffle of this disclosure, is shown. The baffle of this disclosure is positioned around the crown gear and mounted on the axle assembly. The first view also shows line AA, which represents a cross-sectional view of the axle assembly. Figure 3 A second view of the axle assembly is shown, including a first housing, a second housing, and a first-configuration baffle. The first-configuration baffle uses a first-configuration fastening system. The second view may be a partial sectional view, showing a cut section along line AA. Figure 4 A third view of the axle assembly is shown, which includes the features and components of the fastening system. Figure 5 The fourth view shows the axle assembly, including other components and features of the fastening system. Figure 5 The fourth view also shows the other dimensions of the first and second holes. Figure 6 A fifth view of the axle assembly is shown, including a first housing, a second housing, and a second configured baffle. The second configured baffle uses a second configured fastening system. The fifth view can be compared with... Figure 3 The second view is in the same position. Figure 7The sixth view shows the axle assembly near the fastening system, including the components and features of the fastening system. The location of the sixth view is related to... Figure 5 The fourth view is the same. Figure 8 A seventh view of the baffle in the second configuration is shown. The seventh view may be an isolated view showing the baffle of the second configuration isolated from other components and features of the axle assembly.

[0021] It should also be understood that the specific components and systems illustrated in the accompanying drawings and described in the following specification are exemplary embodiments of the inventive concept as defined herein. For ease of discussion, the accompanying drawings are collectively referred to. Therefore, like elements are generally denoted by like reference numerals herein and will not be described repeatedly.

[0022] Figure 1 This displays a schematic diagram of a configuration example, showing the relative positions of the various components. Figure 2-8 An example configuration with approximate location is shown. Figure 2-8 Approximately to scale, but other relative dimensions may also be used. The term "approximately" as used herein refers to a range of plus or minus five percent, unless otherwise stated.

[0023] also, Figure 2-8 Example configurations showing the relative positioning of various components are illustrated. If the components shown in the figure are in direct contact or directly coupled to each other, then in at least one example, these components may be referred to as being in direct contact or directly coupled, respectively. Similarly, in at least one example, components shown as adjacent or adjacent to each other may be referred to as being adjacent or adjacent to each other, respectively. For example, components that are face-to-face in contact with each other may be referred to as face-to-face contact components. Another example is that, in at least one example, components are placed apart from each other, with only space between them and no other components; this may be referred to as being placed apart from each other. Furthermore, components shown above / below each other, to the sides of each other, or to the left / right of each other relative to each other may be referred to as such components. Additionally, as shown in the figure, in at least one example, the topmost component or component point may be referred to as the “top” of the component, and the bottommost component or component point may be referred to as the “bottom” of the component. As used herein, up / down, up / down, and up / down may be relative to the vertical axis in the figure to describe the positioning of the elements in the figure relative to each other. Thus, in one example, an element shown above other elements is vertically positioned above the other elements. For example, the shapes of the elements depicted in the figure may be described as having these shapes (e.g., circles, straight lines, planar shapes, curved shapes, rounded corners, chamfered corners, beveled corners, or similar shapes). Furthermore, in at least one example, elements shown intersecting each other may be referred to as intersecting elements or intersecting with each other. Additionally, in one example, an element shown within or outside another element may be referred to as such an element. Furthermore, when describing the elements, they may be associated with reference axes in the figures.

[0024] Unless otherwise stated, features described as axial may be approximately parallel to the reference axis. Unless otherwise stated, features described as anti-axial may be approximately perpendicular to the reference axis. Unless otherwise stated, features described as radial may surround or extend outward from the axis, such as the reference axis, or may be components or features previously described as radial to the reference axis.

[0025] Features described as longitudinal may be approximately parallel to the longitudinal axis. Transverse axes may be parallel to the normal to the longitudinal axis. Transverse features may be approximately parallel to the transverse axis and parallel to the normal to the longitudinal axis.

[0026] Looking at it now Figure 1 The figure shows a vehicle 100 consisting of a powertrain 101 and a transmission 103. The vehicle 100 may have a front end 132 and a rear end 134, located on opposite sides of the vehicle 100. Objects, components, and features on the vehicle 100 referred to as being closer to the front end 132 are likely closest to the front end 134 compared to the rear end 134. Objects, components, and features on the vehicle 100 referred to as being closer to the rear end 134 are likely closest to the rear end 134 compared to the front end 132. The powertrain 101 includes a prime mover 106 and a transmission 108. The prime mover 106 may be an internal combustion engine (ICE) or an electric motor, etc., which provides rotational power to the transmission 108 during operation. The transmission 108 can be any type of transmission, such as a manual transmission, an automatic transmission, or a continuously variable transmission (CVT). The transmission 108 receives the rotational power generated by the prime mover 106 as input and outputs rotational power to the transmission 103 according to the selected gear or setting. In addition to the prime mover 106, there may be other power units in the vehicle. If the prime mover 106 is an internal combustion engine, then there may be at least one second prime mover connected to the transmission 108, where the second prime mover may be an electromechanical device such as an electric motor. In one example, if there are one or more second actuators in addition to the prime mover 106, then the vehicle 100 may be a hybrid vehicle, where multiple torques are input to the transmission 108. The vehicle 100 may have a longitudinal axis 130. The powertrain 101 and the drivetrain 103 may have a length parallel to the longitudinal axis 130.

[0027] The prime mover 106 can be powered by energy from the energy storage device 105. In one example, the energy storage device 105 is a battery for storing electrical energy. An inverter 107 can be installed between the energy storage device 105 and the prime mover 106 to convert direct current (DC) to alternating current (AC). The inverter 107 may include various components and circuits, the thermal requirements of which will affect the inverter's efficiency.

[0028] Vehicle 100 can be a commercial vehicle, light, medium, or heavy-duty vehicle, passenger vehicle, off-highway vehicle, and / or sport utility vehicle. Furthermore, vehicle 100 and / or one or more of its components can be used in industrial, locomotive, military, agricultural, and / or aerospace applications. In one example, vehicle 100 is a pure electric vehicle or a vehicle with a pure electric operating mode, such as a plug-in hybrid electric vehicle. Therefore, prime mover 106 is an electric motor. In one example, prime mover 106 is an electric motor / generator.

[0029] In some examples, such as Figure 1 As shown, the drivetrain 103 includes a first axle assembly 102 and a second axle assembly 112. The first axle assembly 102 is configured to drive a first set of wheels 104, and the second axle assembly 112 is configured to drive a second set of wheels 114. In one example, the first axle assembly 102 is located near the front of the vehicle 100 and thus includes a front axle, while the second axle assembly 112 is located near the rear of the vehicle 100 and thus includes a rear axle. The drivetrain 103 is shown in a four-wheel drive configuration, but other configurations are also possible. For example, the drivetrain 103 may include a rear-wheel drive or all-wheel drive configuration. Furthermore, the drivetrain 103 may also include one or more tandem axle assemblies. Therefore, without departing from the scope of this disclosure, the powertrain 103 may also have other configurations. Figure 1 The configuration shown is for illustrative purposes only and is not intended to be limiting. Additionally, vehicle 100 may include other wheels not connected to drivetrain 103.

[0030] In some four-wheel drive configurations, such as Figure 1As shown, the powertrain 103 includes a transfer case 110 configured to receive rotational power output from the transmission 108. A first driveshaft 113 is driven to a first output terminal 111 of the transfer case 110, while a second driveshaft 122 is driven to a second output terminal 121 of the transfer case 110. The first driveshaft 113 (e.g., a front driveshaft) transmits rotational power from the transfer case 110 to a first differential 116 of a first axle assembly 102 to drive a first set of wheels 104, while the second driveshaft 122 (e.g., a rear driveshaft) transmits rotational power from the transfer case 110 to a second differential 126 of a second axle assembly 112 to drive a second set of wheels 114. For example, the first differential 116 is driven coupled to a first axle axle 118 coupled to the first set of wheels 104, and the second differential 126 is driven coupled to a second axle axle 128 coupled to the second set of wheels 114. Understandably, each of the first set of shafts 118 and the second set of shafts 128 can be housed within a single housing. The first drive shaft 113 and the second drive shaft 122 can be positioned to extend parallel to the longitudinal shaft 130. In an example configuration of the vehicle 100, the second drive shaft 122 can be centered around the longitudinal shaft 130.

[0031] The first differential 116 can provide all-wheel drive to the vehicle 100 to some extent as part of the rotational power transmitted via the first driveshaft 113. Similarly, the second differential 126 can provide all-wheel drive to the vehicle 100 as part of the rotational power transmitted via the second driveshaft 122. The first differential 116 and the second differential 126 can provide all-wheel drive and all-wheel drive respectively as part of the all-wheel drive mode of the vehicle 100.

[0032] In some examples, alternatively or additionally, vehicle 100 may be a hybrid vehicle, including an engine and an electric motor, each configured to power one or more of the first axle assembly 102 and the second axle assembly 112. For example, one or both of the first axle assembly 102 and the second axle assembly 112 may be driven by power from the engine in a first operating mode, in which the electric motor is not operating to provide power (e.g., engine-only mode); driven by power from the electric motor in a second operating mode, in which the engine is not operating to provide power (e.g., electric-only mode); and driven by power from both the engine and the electric motor in a third operating mode (e.g., electric-assisted mode). As another example, one or both of the first axle assembly 102 and the second axle assembly 112 may be an electric axle assembly configured to be driven by an integrated electric motor.

[0033] In some embodiments, gearbox 108 may also be a first gearbox, further including a second gearbox disposed on a second set of shafts 128. Here, gearbox 108 may be interchangeably referred to as a gearbox.

[0034] A set of reference axes 201 is provided for comparison. Figure 2-8 The view shown. Reference axis 201 represents the y-axis, x-axis, and z-axis. In one example, the z-axis may be parallel to the direction of gravity, and the XY plane may be parallel to the horizontal plane where the axle assembly 208 is located. When referring to directions, a positive direction may refer to the direction of the arrows on the y-axis, x-axis, and z-axis, and a negative direction may refer to the opposite direction of the arrows on the y-axis, x-axis, and z-axis. Filled circles may represent arrows and axes pointing towards or directly opposite the view. Unfilled circles may represent arrows and axes pointing out of the view, or in other words, in a negative direction towards the view.

[0035] Go to Figure 2 The image shows a first view 200 of the axle assembly 208. The axle assembly 208 is radially positioned about a first axis 210. The first line 212, which may be referred to herein as the AA line, represents a cross-sectional view shown in later figures. The first axis 210 may be a transverse axis and perpendicular to the longitudinal axis of the vehicle, for example... Figure 1 The longitudinal axis 130 of vehicle 100. The first axle 210 may also be a rotational axis of the axle housed in the axle assembly 208. This axle may be centered about the first axle 210, for example, radially positioned about the first axle 210. The aforementioned axle may also be an shaft, for example... Figure 1 The axis of the first group of axes 118 or the second group of axes 128. The first line 212 may be a line used for taking cross-sectional views.

[0036] A first view 200 of the axle assembly 208 can be taken from a first end 214 of the axle assembly 208. The axle assembly 208 has a first side 216 and a second side 218. On a first axle 210, the first side 216 is opposite to the second side 218. The first end 214 is visible from the first view 200. The end opposite to the first end 214 is not visible from view 200. The first end 214 may correspond to the first extreme end of the axle arm and axle half-bridge housed in the axle assembly 208. The second end opposite to the first end 214 may correspond to the second extreme end of the axle arm and axle half-bridge housed in the axle assembly 208.

[0037] A receiving collar 224 may be disposed on, constituted by, or connected to the first side 216. The receiving collar 224 may be a small gear nose or other structural feature capable of receiving and supporting a shaft. The receiving collar 224 may receive a drive shaft. For example, if the axle assembly 208 includes... Figure 1 The first set of axle axles 118 in the middle, then the receiving collar can receive Figure 1The first drive shaft 113 in the middle. Another example is if the axle assembly 208 includes Figure 1 The second set of shafts 128 in the middle, then the receiving shaft collar can receive Figure 1 The second drive shaft 122 is included. Furthermore, the axle assembly 208 may also include a first block 226 and a second block 228. The first block 226 may be a base block through which the axle assembly 208 can be fixed to a surface. The first block 226 and the second block 228 may be mounting blocks for mounting the axle assembly 208 to features such as the chassis of a vehicle (e.g., vehicle 100).

[0038] The first end 214 may include an opening 234. A flange 232 may be positioned around the opening 234. The opening 234 may connect to a cavity 236 of the axle assembly 208. The opening 234 may be circular. The opening 234 may receive a shaft, such as an axle half-axle. For example, the axle half-axle may include one of the axle half-axles of a first set of axles 118. Another example is that the axle half-axle may include one of the axle half-axles of a second set of axles 128. The axle assembly 208 may include a portion of a differential housing, wherein the portion of the differential housing may include a cavity 236. The cavity 236 may accommodate gears and rotating elements of the differential and may receive a shaft, such as a drive shaft, via a receiving collar 224. The shaft may be received from the receiving collar 224 into the cavity 236 via a socket 238. The socket 238 may be continuous with the receiving collar 224.

[0039] Cavity 236 may also accommodate a baffle 242 located around gear 244. Baffle 242 may be disposed around a portion of gear 244, or around the outer edge of gear 244. Gear 244 may include a first region 246, a second region 248, a third region 250, and a receiving hole 252. Receiving hole 252 may be concentric with gear 244. Hole 252 may be centered around shaft 210, wherein receiving hole 252 may be radially positioned around shaft 210. First region 246, second region 248, and third region 250 are radially positioned relative to shaft 210 along receiving hole 252. First region 246 may be radially disposed around second region 248 and third region 250, and second region 248 may be radially disposed around third region 250. Baffle 242 may be an oil baffle for gear 244, such as a chuck. Gear 244 may be a crown gear of a bevel gear assembly. The bevel gear assembly including gear 244 can be formed from a differential assembly. Hole 252 can be a receiving hole through which a shaft (such as a half-axle) can pass. When the axle half-shaft passes through hole 252, it can be rotatably coupled to the side gear of the bevel gear assembly.

[0040] Flange 232 may include a plurality of first holes 258 and a plurality of second holes 260. The first holes 258 and second holes 260 may be complementary to a fastening mechanism. This fastening mechanism can secure axle assembly 208 to another axle assembly to form a fully assembled axle. For example, if axle assembly 208 is part of a front axle, assembly 208 can be secured to another complementary axle assembly to form a front axle assembly, such as... Figure 1 The first axle assembly 102. Another example is that if axle assembly 208 is part of a rear axle, assembly 208 can be fixed to another complementary axle assembly to form a rear axle assembly, such as... Figure 1 The second axle assembly 112 is located in the axle assembly. Similarly, cavity 236 may include a differential housing and enclose the differential with a complementary housing assembly of another axle assembly.

[0041] Gear 244 may include a plurality of third holes 262. The plurality of third holes 262 may extend in an axial direction relative to shaft 210 and pass through the material of second region 248 of gear 244. The third holes 262 may be radially positioned around third region 250.

[0042] Go to Figure 3 It shows a second view 300 of the axle assembly 208. The second view 300 can be oriented towards... Figure 2 The second side 218 can be photographed on the y-axis of the reference axis 201, where the y-axis is negative relative to the second view 300.

[0043] The second view 300 can also be a sectional view, shown in... Figure 2 A cut 312 on the first line 212 (e.g., line AA). The cut 312 may be partially shown as a dashed line cutting into the axle housing 222 material. Second view 300 shows a second end 314 of the axle assembly 208. The second end 314 is opposite to the first end 214. The second end 314 may correspond to the second extreme ends of the axle arms and axle half-axles housed in the axle assembly 208. The second end 314 of the axle assembly may be as described above. Figure 2 The second end, which is opposite to the first end 214.

[0044] Second view 300 shows that axle assembly 208 may include a first housing assembly 322 and a second housing assembly 324. The first housing assembly 322 may be secured to the second housing assembly 324 at an interface 328. The first housing assembly 322 may be a central housing that can accommodate gears and other rotating components of the differential assembly. The first housing assembly 322 may include a first cavity 236 and an opening 234. The first housing assembly 322 may include, be connected to, or be secured to a receiving collar 224 and a flange 232. The first housing assembly 322 includes a first end 214. The first housing assembly 322 is closer to the first end 214 of axle assembly 208 than to the second end 314. The differential side of the axle half-axle housed in axle assembly 208 is likely closest to the first housing assembly 322. The second housing assembly 324 may be a shaft housing of the half-axle. The second housing assembly 324 may be an axle arm, for example... Figure 3 The example shown. The second housing component 324 may include a shaft tube 325. The shaft tube 325 may surround and house a shaft, such as an axle half-bridge. As an axle arm, the second housing component 324 may include, connect to, or be fixed to a steering knuckle portion 326. The second housing component 324 is located near the second end 314 of the first housing component 322. The steering knuckle portion 326 may be arranged on and constituted by the second end 314 of the axle assembly 208. The wheel side of the axle half-bridge housed in the axle assembly 208 may be positioned closest to the steering knuckle portion 326 and the second end 314. A cutout 312 may form a cross-sectional view on a portion of the second housing component 324, making features such as cavity 236 and components such as gear 244 visible in the second view 300.

[0045] A first-configuration baffle, referred to herein as the first baffle 330, is positioned around the gear 244 and fixed to the surface of the cavity 236 and the first housing component 322. The first baffle 330 can be... Figure 2 The structure of the middle baffle 242. A gear 244 may be located above a portion of the first baffle 330. The gear 244 may also be located between a portion of the first baffle 330 and the second cavity 334. The second housing assembly 324 may include the second cavity 334. The second housing assembly 324 may also include a head 332. The material of the head 332 may include the surface connected to the cavity 334. The head 332 may be connected to and adjacent to a shaft tube 325. The shaft tube 325 may extend from the head 332 to a second end 314. The shaft tube 325 may be physically connected to a steering knuckle portion 326. The shaft tube 325 is located around a channel 337. The channel 337 may be continuous with the second cavity 334. The channel 337 may receive a shaft, such as an axle half-axle, which may be mounted in the axle housing 222. Similarly, the shaft tube 325 may be positioned around the aforementioned shaft.

[0046] The head 332 may include or be connected to a first collar 336. The first collar 336 may be positioned around a second cavity 334. The first collar 336 may extend inwardly and radially toward axis 210 from the material and surface of the nose 332. The first collar 336 may also extend from the head and second cavity 334 toward a first end 214 of the first cavity 236. The gear 244 may include a second collar 338. The second collar 338 surrounds and includes a receiving hole 252. The first collar 336 may be positioned around the second collar 338, for example, radially around the second collar 338 relative to axis 210. Similarly, a bearing 340 may be positioned around the second collar 338, for example, radially around the second collar 338 relative to axis 210. The bearing 340 may be disposed between the second collar 338 and the first collar 336. Bearing 340 can support the second collar 338, allowing the second collar 338 to rotate freely about axis 210, for example, when coaxial with the first collar 336. The free rotation of the second collar 338 allows the other parts of gear 244 to rotate together with the second collar 338 about axis 210. The shaft received through hole 252 can rotate freely about axis 210 under the action of gear 244 and the second collar 338. Gear 244 can also be rotatably coupled to the shaft via other gears (such as complementary side gears). Receiving hole 252 can accommodate a bearing or bushing for supporting the shaft received by receiving hole 252. Similarly, receiving hole 252 can also include a bushing. In another example, a bushing can be used instead of bearing 340.

[0047] Second view 300 shows that gear 244 may include a first alignment hole 342 and a second alignment hole 344. A second region 248 may include the first alignment hole 342. A first region 246 may be radially disposed around the first alignment hole 342, for example, radially disposed around the first alignment hole 342 relative to shaft 210. A second region 248 may be radially disposed around a second counting hole 344, for example, radially disposed around the second counting hole 344 relative to shaft 210. Gear 244 may also include a plurality of teeth 346. Teeth 346 may extend radially outward from the first region 246, for example, radially outward from the first region 246 relative to shaft 210. A first baffle 330 may be positioned around a portion of the teeth 346.

[0048] The first housing assembly 322 and the second housing assembly 324 can be secured by a plurality of first fasteners 354. The first fasteners 354 can extend through and secure the first housing assembly 322 and the second housing assembly 324 along a plurality of helical shafts (e.g., helical shaft 352). For example, when securing the first housing assembly 322 to the second housing assembly 324, each first fastener 354 can be centered around one helical shaft. The helical shaft, including the helical shaft 352, can be generally parallel to shaft 210 and radially positioned around shaft 210. The first fasteners 354 can be connecting members that secure the first housing assembly 322 to the second housing assembly 324 at interface 328. The first fasteners 354 can be screws, also referred to as arm screws. In addition to the first fasteners 354, there can be a plurality of first fastening systems 356. The first fastening systems 356 can be centered on a helical shaft (e.g., helical shaft 352) so as to be coaxial with the first fasteners 354. At least one of the first fastening systems 356 can fasten the first baffle 330 to the first housing assembly 322. For example, one of the first fastening systems 356 can be centered on the helical shaft 352. The fastening system of the first fastening system 356 can pass through one of the complementary hole and the second hole 360 ​​of the baffle. The fastening system of the first fastening system 356 can be concentric with one of the first fasteners 354.

[0049] The first fastening system 356 may be a first embodiment of the fastening system and complements the first baffle 330. Each first fastening system 356 may include at least one fastening element. At least one fastening element of one of the first fastening systems 356 may fasten the first baffle 330 to the first housing assembly 322. The first fastening system 356 may also include a sleeve or other type of insert that mates with the fastening element and the second hole 360.

[0050] A first fastener 354 may pass through a plurality of first holes 358 and a plurality of second holes 360. The first holes 358 and second holes 360 may be a plurality of pre-drilled holes in the axle housing 222. The second holes 360 may be a plurality of existing first holes in the first housing assembly 322. The first holes 358 may be a plurality of existing second holes in the second housing assembly 324. Each first fastener 354 may pass through one first hole 358 and one second hole 360, for example, when the first holes 358 and second holes 360 are aligned. Alignment is possible when one hole of the first hole 358 and one hole of the second hole 360 ​​are coaxial and centered on a helical axis (such as helical axis 352). The first holes 358 and second holes 360 may be complementary to and aligned on the helical axis, such that each first hole 358 and each second hole 360 ​​may be centered and complementary to their respective helical axis (such as helical axis 352). Similarly, a first fastening system 356 may extend through complementary holes and second holes 360 of a baffle. When the holes of the baffle and the second hole 360 ​​are centered on one of the helical shafts, each first fastening system 356 can pass through one hole of the baffle and one hole of the second hole 360. When extending through the first hole 358 and the second hole 360, a first fastener 354 can secure the first housing component 322 to the second housing component 324. For example, if the first fastener 354 is a screw or bolt, then the first fastener 354 can pass through the first hole 358 and the second hole 360. At least one first fastener 354 can pass through the complementary second hole of the first hole 358 and the second hole 360 ​​to secure the first housing assembly 322 to the second housing assembly 324. When extending through the complementary hole and the second hole 360 ​​of the first baffle 330, the first fastening system 356 can secure the first baffle 330 to the first housing component 322. At least one of the first fastening systems 356 extends through at least one of the complementary holes and the second hole 360 ​​of the first baffle 330 to secure the first baffle 330 to the first housing component 322.

[0051] The first baffle 330 may include a first shielding portion 362 and a first edge portion 364. The first shielding portion 362 may be disposed relative to the shaft 210 between the gear 244 and the opening 234. Similarly, the first edge portion 364 may be located below the gear 244. The first edge portion 364 may be located between the gear and the inner surface 366 of the first cavity 236. The first shielding portion 362 may have a first length 368, and the first flange portion 364 may have a second length 370. When positioned about an axis (such as axis 210), the first length 368 may extend radially from the axis, and the second length 370 may be parallel to the axis. Similarly, when positioned about the gear 244, the first length 368 may extend radially from the centerline of the gear 244, and the second length 370 may be parallel to the centerline of the gear 244.

[0052] Go to Figure 4 It shows a third view 400 of the axle assembly 208. The third view 400 may not be biased towards any axis of the reference shaft 201. The third view 400 shows the first cavity 236 and the assembly mounted within the first cavity 236. The third view 400 is also a sectional view showing... Figure 2 Cut 312 on the first line 212 (e.g., line AA).

[0053] The third view 400 shows a reverse hole 432 and an edge 434. The rim 434 may surround and support the second and third regions 248, 250 of the gear 244. The reverse hole 432 may face the third region 250.

[0054] Third view 400 also shows that the first baffle 330 may include a plurality of first mounting seats 442. A first edge portion 364 may include or be connected to a first mounting seat 442. An inner surface 366 may include a plurality of recesses 440. The first mounting seats 442 may extend radially from the first edge portion 364. When the first baffle 330 is secured to the first housing component 322, each first mounting seat 442 may extend toward a complementary recess of the recess 440 and be partially located within the complementary recess of the recess 440.

[0055] Each first mounting base 442 can be secured to the first housing assembly 322 by a first fastening system 356. Each first mounting base 442 may include a plurality of third holes 452. At least one of the third holes 452 may be complementary to and extend through each first mounting member 442. An assembly of each first fastening system 356 may extend through the third hole 452 of the mounting base 442. Each third hole 452 may be complementary to and aligned with a second hole 360 ​​such that the third hole 452 and the second hole 360 ​​can be centered about a helical axis (such as a helical axis 352). When centered on the helical axis (such as a helical axis 352), the first fastening system 356 may extend through each third hole 452 and the second hole 360.

[0056] Each first fastening system 356 may include at least one insert 444 and a second fastener 446. The second fastener 446 may be a fastening element of each first fastening system 356. The insert 444 may be a sleeve of each first fastening system 356. Multiple inserts 444 and second fasteners 446 may be present. The second fastener 446 may mate with the insert 444 to extend through a complementary mounting member of the insert 444 and the first mounting member 442. One insert of the insert 444 may be received by a hole in a third hole 452. The insert 444 may receive the second fastener 446 from one of the second holes 360. The insert 444 may prevent slippage, such as sliding along the helical axis 352, or prevent the second fastener 446 from disengaging from one of the second holes 360. The insert 444 may prevent slippage, such as sliding along the helical axis 352, or prevent the first fastening system 356 from disengaging from one of the second holes 360. The second fastener 446 can be inserted into the second hole 360 ​​from the first hole 358, which is complementary to the second hole 360. For example, to secure the first baffle 330 to the first housing component 322, at least one of the second fasteners 446 passes through at least one of the second holes 360 and at least one of the third holes 452. At least one of the second fasteners 446 may be referred to as a second fastener. At least one of the second holes 360 may be referred to as a second hole. At least one of the third holes 452 may be referred to as a third hole. The second fastener can be inserted into the second hole. The second fastener can be inserted directly into the second hole before the first housing component 322 is connected to the second housing component 324. When the first housing component 322 is connected to the second housing component 324, the second fastener can enter the second hole through the hole of the first hole 358, which is complementary to the second hole. The second fastener can pass through the third hole from the second hole. As described above, some or all of the second fasteners 446 can secure the first baffle 330 to the second housing by extending through some or all of the second holes 360 and the third hole 452.

[0057] Each second hole 360 ​​can be an existing first hole in the first housing assembly 322. Each first hole 358 can be a second existing hole in the second housing assembly 324. Existing holes can be holes created during the manufacturing process of the first or second housing components 322, 324 before the baffle (such as the first baffle 330) is assembled into the axle housing 222.

[0058] The second fastener 446 can be a screw-type structure, such as a screw, or a bolt-type structure, such as a bolt. The second fastener 446 may include a head 448. When the second fastener 446 is received by the complementary third hole of one of the second holes and the third hole 452, the head 448 may abut against the shoulder 450 of the second hole 360.

[0059] Go to Figure 5It shows a fourth view 500 of the axle assembly 208. The fourth view 500 can be oriented towards... Figure 2 The second side 218 can be photographed on the y-axis of reference axis 201, where the y-axis is negative with respect to the fourth view 500. The fourth view 500 is also a sectional view, showing... Figure 2 Cut 312 is taken on the first line 212 (e.g., line AA).

[0060] The first shielding portion 362 may include a first wall 512 and a second wall 514. The first wall 512 may be continuous and connected to the second wall 514. The second wall 514 may be continuous with the first edge portion 364 and connected through a first curve 516.

[0061] When the first shielding portion 362 surrounds the axis (e.g.) Figure 3 When radially positioned along axis 210, the first wall 512 may extend radially from the axis. The second wall 514 may extend away from the first curve 516 toward the centerline of the first baffle 330 or around an axis around which the first baffle 330 may be positioned. The first edge portion 364 may extend away from the first curve 516 parallel to the centerline of the first baffle 330 and / or around an axis around which the first baffle 330 may be positioned. The first shielding portion 362 and the first edge portion 364 may be positioned around a volume.

[0062] A portion of gear 244 can be installed within the volume. Gear 244 can divide the volume into a first space 518 and a second space 520. The first space 518 can be located between gear 244 and the first shielding portion 362. The second space 520 can be located between gear 244 and the first edge portion 364. The first space 518 and the second space 520 can be separated by teeth 346.

[0063] Each first hole 358 may have a first diameter 532. Each second hole 360 ​​may include a first portion of a second diameter 534 and a second portion of a third diameter 536. The distances between the first diameter 532, the second diameter 534, and the third diameter 536 may be different. The first diameter 532 may be larger than the second and third diameters 534 and 536. The second diameter 534 may be larger than the third diameter 536. The difference between the second diameter 534 and the third diameter 536 forms a shoulder 450 for contact with the first head 448. Furthermore, a mating hole including the shoulder 450 may be located between the first portion of the second hole 360 ​​with the second diameter 534 and the second portion of the second hole 360 ​​with the third diameter 536. An insert 444 may mate with the second portion of the second hole 360 ​​with the third diameter 536. When secured to the first housing component 322 by the insert 444 and the second fastener 446, the first mounting member 442 may contact and have surface-shared contact with the surface 524 of the first housing component 322. Each mounting element 442 can have surface-shared contact with surface 524 via a first surface 526. There can be multiple first surfaces 526, with each mounting element 442 having one first surface 526.

[0064] The first fastener 354 may have a shank 528 that mates at least with the second diameter 534, such that the first fastener 354 can extend through the first and second holes 358, 360. The shank 528 of the first fastener 354 may consist of a first portion that mates with the first diameter 532 and a second portion that mates with the second diameter 534. The first fastener 354 may have a thread that is at least complementary to the second hole 360. For example, the first fastener 354 may have a thread that is complementary to the second hole 360 ​​on the second portion of the shank 528. Similarly, the first fastener 354 may have a thread that is complementary to the first hole 358 on the first portion of the shank 528.

[0065] The insert 444 may include a second head 542 and a collar 544. The second head 542 may abut a second surface 556 of the first mounting base 442 and share surface contact. There may be multiple second surfaces 556, with each mounting base 442 having one second surface 556. The second head 542 may distribute the compressive and compressive forces provided by the second fastener 446 and the insert 444 to each mounting base 442. The second head 542 and the collar 544 are positioned about a through-hole extending through the insert. The collar 544 may have a fourth diameter 546 and a fifth diameter 548. The fourth diameter 546 may be the inner diameter of the collar 544 and the diameter of the through-hole in the insert 444. The fifth diameter 548 may be the outer diameter of the collar 544. The fifth diameter 548 may be approximately the same as the diameter of the third hole 452, so that the collar 544 can engage with the third hole 452 and can prevent pull-out without intentionally applying a threshold axial force. The dimensions of the insert 444 (e.g., the fifth diameter 548) can be changed to accommodate different dimensions of the third hole 452.

[0066] In addition to the first head 448, the second fastener 446 may also include a shank 552. The shank 552 may mate with a fourth diameter 546. The shank 552 may have threads complementary to the collar 544, so that when the second fastener 446 passes through the collar 544, it can be fastened to the insert 444. The first head 448 may include a hole 554. The hole 554 may be an operating hole for a device, such as a screwdriver or an Allen wrench, to fasten or loosen the second fastener 446 from the insert 444.

[0067] Returning to the first baffle 330, the second wall 514 may extend at a first angle 562 to the first wall 512. The second wall 514 may be positioned at the first angle 562 relative to an axis radially disposed relative to the first shielding portion 362. The second wall 514 may extend at a second angle 564 to the first wall 512. The first curve 516 may include the second angle 564. The first curve 516 may include and have a first radius 560.

[0068] Thus, one embodiment of the baffle (such as a ferrule) can be mounted to the axle assembly housing using fasteners of a fastening system. The fasteners of the fastening system can be screws or bolts, and the baffle can be mounted to the housing using existing holes in the housing. For example, the main housing may have a second hole, and the housing may have a first hole for mounting the axle half-axle. The first and second holes can be fastened by a first fastener, which, after fastening, secures the main housing to the axle half-axle housing. The first and second holes can be aligned along a common centerline and helical shaft. A second fastener of the fastening system can use the second hole to fasten the baffle to the main housing. The fasteners of the fastening system can mount the baffle through holes with minimal modification. For example, such modification may include installing an insert between the fastener and the existing hole. Both the second fastener and the insert can pass through the second hole in the main housing and the complementary hole in the baffle to secure the baffle to the main housing. When fastened by the fastening system, the baffle can be mounted to the main housing and pressed against a feature of the main housing by the feature of the fastening system. The baffle may have multiple first holes, second holes, first fasteners, second fasteners, and complementary holes, which can complement multiple first fastening systems.

[0069] Go to Figure 6 It shows a fifth view 600 of the axle assembly 208. The fifth view 600 can be oriented towards... Figure 2 The second side 218 can be photographed on the y-axis of reference axis 201, where the y-axis is negative with respect to the fifth view 600. The fifth view 600 can be... Figure 3 Second view 300. Axle housing 222 and axle assembly 208 with Figure 3 They are roughly the same.

[0070] The axle assembly 208 in fifth view 600 uses different baffles and fastening systems. A second configuration baffle, referred to herein as second baffle 622, is positioned around the gear 244 and fixed to the surface of the cavity 236 and the first housing component 322. Second baffle 622 can be... Figure 2 Configuration of the middle baffle 242. Gear 244 may be located above a portion of the second baffle 622. Gear 244 may also be located between a portion of the second baffle 622 and the second cavity 334.

[0071] In addition to the first fastener 354, there may be multiple second fastening systems 642, which may be centered on a helical shaft (such as helical shaft 352). For example, one of the second fastening systems 642 may be centered on the helical shaft 352. Each second fastening system 642 may be connected to or constituted by the second baffle 622. The second fastening system 642 may include fasteners other than screws or bolts or other fastening elements. The second fastening system 642 includes fastening elements, such as fasteners, that are connected to or physically coupled to the second baffle 622.

[0072] A first fastener 354 may pass through a plurality of first holes 358 and a plurality of second holes 360. Each first fastener 354 may pass through one first hole 358 and one second hole 360 ​​when the holes of the first holes 358 and the second holes 360 are centered on a helical shaft (such as a helical shaft 352). The first holes 358 and the second holes 360 may be complementary to and aligned with the helical shaft 352. Similarly, a second fastening system 642 may extend through the second holes 360. Each second fastening system 642 may pass through one second hole 360. When extending through the first holes 358 and the second holes 360, the first fastener 354 may secure the first housing assembly 322 to the second housing assembly 324. For example, if the first fastener 354 is a screw or bolt, the first fastener 354 may pass through the first holes 358 and the second holes 360. At least one first fastener 354 may pass through a complementary second hole of a first hole 358 and a second hole 360 ​​to secure the first housing assembly 322 to the second housing assembly 324.

[0073] When extended through the second hole 360, the second fastening system 642 can fasten the second baffle 622 to the first housing component 322. At least one of the second fastening systems 642 can extend through at least one hole in the second hole 360 ​​to secure the second baffle 622 to the first housing component 322. A plurality of second fastening systems 642 can extend through the second hole 360 ​​to secure the second baffle 622 to the first housing component 322.

[0074] The second baffle 622 may include a second shielding portion 632 and a second edge portion 634. The second shielding portion 632 may be disposed relative to the shaft 210 between the gear 244 and the opening 234. Similarly, the second edge portion 634 may be located below the gear 244. The second flange portion 634 may be located between the gear and the inner surface 366 of the first cavity 236. The second shielding portion 632 may have a first length 636, and the second flange portion 634 may have a second length 638. When positioned about an axis (such as axis 210), the first length 636 may extend radially from the axis, and the second length 638 may be parallel to the axis. Similarly, when positioned about the gear 244, the first length 636 may extend radially from the centerline of the gear 244, and the second length 638 may be parallel to the centerline of the gear 244.

[0075] Go to Figure 7 It shows the sixth view 700 of the axle assembly 208. The fourth view 500 can be oriented towards... Figure 2 The second side 218 can be photographed on the y-axis of reference axis 201, where the y-axis is negative with respect to the sixth view 700. The sixth view 700 is also a sectional view, showing... Figure 2Cut 312 is taken on the first line 212 (e.g., line AA).

[0076] The second shielding portion 632 may include a third wall 712 and a fourth wall 714. The third wall 712 may be continuous with and connected to the fourth wall 714. The fourth wall 714 may be continuous with the second edge portion 634 and connected through a second curve 716.

[0077] When the second shielding portion 632 surrounds the axis (e.g.) Figure 3 When the axis 210 is radially positioned, the third wall 712 may extend radially from the axis. The fourth wall 714 may extend away from the second curve 716 toward the centerline of the second baffle 622 and / or around the axis around which the second baffle 622 may be positioned. The second edge portion 634 may extend away from the second curve 716 parallel to the centerline of the second baffle 622 and / or around the axis around which the second baffle 622 may be positioned.

[0078] The second shielding portion 632 and the second edge portion 634 can be positioned around a volume. A portion of the gear 244 can be installed within the volume. The gear 244 can divide the volume into a third space 718 and a fourth space 720. The third space 718 can be located between the gear 244 and the second shielding portion 632. The fourth space 720 can be located between the gear 244 and the second edge portion 634. The third space 718 and the fourth space 720 can be separated by a tooth 346.

[0079] Sixth view 700 shows that the second fastening system 642 may include a third fastener 750 physically coupled to the second mounting base 742. The third fastener 750 may be integrated with the second baffle 622 via the second mounting base 742. The third fastener 750 may be connected or physically coupled at a first surface 744 of the second mounting base 742. A second surface 748 may be present on the side of the second mounting base 742 opposite to the first surface 744. The first surface 744 and the second surface 748 may be parallel. Multiple third fasteners 750 and second mounting members 742 may be physically coupled to and / or constituted by the second baffle 622. Multiple first surfaces 744 and second surfaces 748 may be present, wherein each second mounting member 742 may have at least one first and second surface 744, 748. The second mounting member 742 may extend radially from the second baffle 622 toward the recess 440. The third fastener 750 may have a length 758 and a centerline aligned with the second mounting base 742. The third fastener 750 can pass through the second hole 360. For example, the third fastener 750 can be centered on and extend along the helical shaft (such as helical shaft 352) of the first fastener 354, the first hole 358, and the second hole 360. When the second baffle 622 is fastened to the first housing component 322 by the second fastening system 642, the second mounting base 742 can have surface-shared contact with the first housing component 322. When the second mounting base 742 has surface-shared contact with the first housing component 322, one or more first surfaces 744 can be in contact with the surface 746 of the first housing component 322.

[0080] Each third fastener 750 may include a body 752, a third head 754, and a neck 756. The body 752 may be cylindrical, with a diameter approximately equal to the third diameter 536, to mate with a second portion of the second hole 360 ​​of the third diameter 536. The third head 754 may engage with a shoulder 450. The engagement and expansion of the third head 754 with the shoulder 450 prevents the third fastener 750 from being pulled out of the second hole 360. The third fastener 750 can be inserted into the second hole 360 ​​through the portion of the second hole 360 ​​with the third diameter 536 from the first cavity 236. The neck 756 may be of a first width 772. The third head 754 may be of a second width 774. The width 772 may be less than the third diameter 536. The difference between the third diameter 536 and the first width 772 allows the neck 756 and the third head 754 to pass through the second hole 360. The cross-section of the second hole 360 ​​is the second diameter 534. The difference between the third diameter 536 and the second width 774 prevents the head 754 from being pulled into the first cavity 236 through the second hole 360, for example, when the third fastener 750 is pulled along the helical shaft 352. The first width 772 and the second width 774 can each be variable widths, so that the distance between the first width 772 and the second width 774 can change with the applied force. A first force can increase the first width 772 and the second width 774. Similarly, a second force can decrease the first width 772 and the second width 774. The first force and the second force can be equal forces applied in opposite directions. The change in the first width 772 and the second width 774 caused by the force can be elastic and reversible when the force is removed. For example, if the first width 772 and / or the second width 774 increases in distance under the action of a force, then when the force is removed, the first width 772 and / or the second width 774 can return to their original distance. For example, if the first width 772 and / or the second width 774 are contracted by force in terms of distance, the first width 772 and / or the second width 774 can be restored to the original distance after the force is removed.

[0081] Returning to the second baffle 622, a fourth wall 714 may extend from the third wall 712 at a first angle 762. The fourth wall 714 may be positioned at the first angle 762, extending radially relative to the axis of radial positioning of the second shielding portion 632. The fourth wall 714 may extend from the third wall 712 at a second angle 764. A second curve 716 may include the second angle 764. The second curve 716 may include and have a second radius 760.

[0082] The size of the second baffle 622 can be the same as... Figure 3 The first baffle 330 in the middle is the same, but respectively with Figure 4The second mounting base 742 differs from the first mounting base 442. The dimensions of the first shielding portion 362 may be approximately the same as those of the second shielding portion 632. The dimensions of the first edge portion 364 may be approximately the same as those of the second edge portion 634.

[0083] Go to Figure 8 It shows a seventh view 800 of the second baffle 622. The seventh view 800 shows any axis that is not biased towards the reference axis 201. The seventh view 800 shows a portion of the second baffle 622, in which the second baffle 622 is isolated from other components and features of the axle assembly 208.

[0084] The third fastener 750 and the second mounting base 742 can be centered on axis 810. Axis 810 can be positioned parallel to the helical axis (e.g., helical axis 352) of the first fastener 354, the first hole 358, and the second hole 360. The second mounting base 742 can extend radially from the outer surface 822 of the second baffle 622. The third fastener 750 can extend from the first surface 744 along the direction of axis 810. Axis 810 can be the normal to the first surface 744. Surfaces parallel to the first surface 744 (e.g., helical axis 352) Figure 7 The second surface 748 may be formed by a second mounting member 742 and located on the side of the second mounting member 742 opposite to the first surface 744. The second mounting base 742 may include an edge 832 located between the first surface 744 and the aforementioned opposing parallel surface. The edge 832 may extend and bend around the second mounting base 742 by means of a circle 834. A plurality of first rounded corners 826 and a plurality of second rounded corners 828, etc., rounded corners may connect the second mounting base 742 to the second baffle 622. The first and second rounded corners 826, 828 may make the surface of the second mounting base 742 continuous with the outer surface 822.

[0085] The third fastener 750 may include a first prism 852 and a second prism 854. The first prism 852 and the second prism 854 may be separated by a gap 856. The gap 856 may divide the head 754 and the neck 756 into two parts. For example, the first prism 852 may include a first part of the head 754 and a first part of the neck 756. The second prism 854 may include a second part of the head 754 and a second part of the neck 756.

[0086] The width of the gap 856 is 876. The width 876 can be variable, allowing force to widen the gap 856, further separating the first prism 852 and the second prism 854. Similarly, force can decrease the width 876 of the gap 856, pushing the first prism 852 and the second prism 854 closer together. The expansion or contraction of the width 876 between the first prism 852 and the second prism 854 can be elastic and reversible, returning the width 876 to its original distance threshold when the force is removed. The expansion of the width 876 can increase the shape of the first width 772, the second width 774, and the third fastener 750. The unfolding of the first prism 852 and the second prism 854 from the gap 856 is a tensile function of the third fastener 750, preventing tension relative to... Figure 6 The helical axis 352 of the shoulder 450 moves axially. Similarly, the unfolding of the first prism 852 and the second prism 854 from the gap 856 can also be a locking feature.

[0087] For example, a first force 882 can act on the head 754. The first force 882 can be an inward force relative to the third fastener 750, such that the vector of the first force 882 can push inward and radially toward the axis 810. The vector of the first force 882 can be represented by an arrow. The first force 882 can push the first prism 852 and the second prism 854 closer together, causing the width 876 to contract. The contraction of the gap 856 can reduce the first width 772, thereby allowing the head 754 and neck 756 to pass through. Figure 7 The portion of the second hole 360 ​​with a third diameter of 536. In another example, a second force 884 may act on the head 754. The second force 884 may be an outward force relative to the third fastener 750, such that the vector of the second force 884 may push outward and radially from the axis 810. The second force 884 may force the first prism 852 and the second prism 854 to separate further, widening the width 876. The widening of the gap 856 may widen the first width 772, thereby causing a feature of the third fastener 750 to potentially engage with the portion of the second hole 360 ​​with a third diameter of 536 and be prevented from passing through that portion. The gap 856 and the expansion of at least one third fastener 750 including the gap 856 may secure the second baffle 622 to the first housing component 322. When secured to the first housing component 322, it prevents the third fastener 750 and the second baffle 622 from being pulled out of the second hole 360.

[0088] remove Figure 4 In addition to the third fastener 750 and the third hole 452, each second mounting base 742 may include a... Figure 4 It has the same features and dimensions as the first mounting bracket 442 in the middle.

[0089] Thus, one embodiment of the baffle (such as a ferrule) can be mounted to the axle assembly housing via fasteners of a second fastening system. The fasteners of the second fastening system may not include screws or bolts. The fasteners of the second fastening system are snap-fit ​​structures. The fasteners of the second fastening system can mate with pre-drilled holes in the housing and axle assembly. For example, the main housing may have a second hole, and the housing may have a first hole for the axle half-axle. The first and second holes can be secured by a first fastener, which, once secured, secures the main housing to the half-axle housing. The first and second holes can be aligned along a common centerline and helical axis. A third fastener of the fastening system can use the second holes to fasten the baffle to the main housing. The third fastener can be connected to or consist of the baffle. There can be multiple third fasteners and multiple second holes. The third fastener of the fastening system can mount the baffle through multiple second holes with minimal modification. The third fastener may include features that can change the shape of the third fastener, such as barbs. The aforementioned shape change may occur when the third fastener is pressed into the second hole and the baffle is mounted to the first housing. Shape-changing features and variations in fasteners can serve as anti-tension functions. Shape-changing features and variations in fasteners can increase the diameter of the fastener to accommodate pre-existing holes.

[0090] While various embodiments have been described above, it should be understood that these embodiments are merely examples and not limitations. It will be apparent to those skilled in the art that the disclosed subject matter can be embodied in other specific forms without departing from the spirit of the subject matter. Therefore, the embodiments described above should be considered illustrative rather than restrictive in all respects. Consequently, the configurations and routines disclosed herein are exemplary in nature, and these specific examples should not be considered limiting, as many variations are possible. For example, the above-described techniques can be applied to power systems that include different types of propulsion sources, including different types of prime movers, internal combustion engines, and / or transmissions. The subject matter of this disclosure includes all novel and non-obvious combinations and sub-combinations of various systems and configurations, as well as other features, functions, and / or attributes disclosed herein.

[0091] It is understood that the configurations and routines disclosed herein are exemplary in nature, and these specific implementations are not limiting, as many variations are possible. For example, the above-described techniques can be applied to V-6, I-4, I-6, V-12, opposed 4, and other types of engines. Furthermore, unless explicitly stated to the contrary, the terms “first,” “second,” and “third,” etc., do not indicate any order, position, quantity, or importance, but are merely labels used to distinguish one element from another. The subject matter of this disclosure includes all novel and non-obvious combinations and sub-combinations of various systems and configurations, as well as other features, functions, and / or attributes disclosed herein.

[0092] The following claims specifically point to certain combinations and sub-combinations considered novel and non-obvious. These claims may refer to an element, a first element, or an equivalent element. These claims should be understood to include one or more such elements, neither requiring nor excluding two or more such elements. Other combinations and sub-combinations of the disclosed features, functions, elements, and / or characteristics may be claimed by amending these claims or by setting new claims in this application or related applications. These claims, whether broader or narrower in scope, identical or different from the original claims, are also considered to be included in the subject matter of this disclosure.

Claims

1. An axle, comprising: Central shell; The axle arm is secured to the central housing by multiple first fasteners; as well as A baffle is fixed to the central housing, the baffle being fixed to the central housing by at least one fastening element and at least one of the plurality of reserved holes in the central housing, the at least one fastening element being coaxial with at least one of the plurality of first fasteners.

2. The axle according to claim 1, characterized in that, The at least one fastening element is a screw or bolt, fastened to the baffle through a first existing hole of at least one fastener at the interface between the axle arm and the central housing and a complementary hole of the baffle.

3. The axle according to claim 2, characterized in that, The at least one fastening element is complementary to the insert, which mates with the first existing hole and the complementary hole of the baffle.

4. The axle according to claim 3, characterized in that, The complementary holes of the baffle are located on one of a plurality of mounting seats that extend radially from the surface of the baffle.

5. The axle according to claim 4, characterized in that, The insert includes a head and a collar, the head being in contact with the surface of a baffle, the head and the collar being positioned around a through hole in the insert, and the collar receiving the fastening element.

6. The axle according to claim 5, characterized in that, The fastening element is complementary to the thread of the through hole, and the fastening element passes through the through hole of the insert to fasten the insert and the existing hole.

7. The axle according to claim 6, characterized in that, The fastening element passes through the first existing hole through one of a plurality of second existing holes, wherein the second existing hole is complementary to the first existing hole, and wherein one of the plurality of first fasteners passes through the first existing hole and the second existing hole.

8. The axle according to claim 6, characterized in that, The first existing hole includes a first portion containing a first diameter and a second portion containing a second diameter, wherein the distance between the first diameter and the second diameter is different.

9. The axle according to claim 8, characterized in that, The fastening element includes a head and a handle, the head abutting against the shoulder of the first existing hole, the first existing hole being located on the side opposite to the baffle.

10. The axle according to claim 1, characterized in that, The fastening element is an engaging element integrated with the baffle, wherein the fastening element fastens the baffle to the central housing through a first existing hole of at least one fastener at the interface between the axle arm and the central housing.

11. The axle according to claim 10, characterized in that, The fastening element is physically coupled to one of a plurality of mounting seats of the baffle, wherein the plurality of mounting seats extend radially from the surface of the baffle and are physically coupled to the surface of the baffle.

12. The axle according to claim 11, characterized in that, The fastening element includes a body, a head, and a neck, wherein the body is cylindrical or columnar, and the neck is located between the body and the head.

13. The axle according to claim 12, characterized in that, The fastening element includes a first edge and a second edge. The gap between the first edge and the second edge increases under the action of a first force, thereby increasing the width of the fastening element, while the gap between the first edge and the second edge decreases under the action of a second force.

14. The axle according to claim 1, characterized in that, The baffle includes a shielding portion and a rim portion. When the baffle is positioned around the gear, the shielding portion has a first length relative to the radial direction of the gear, and the rim portion has a second length relative to the axial direction of the gear. The rim portion includes a first wall and a second wall, wherein the second wall extends from the first wall at a first angle, and the second wall extends from the rim portion at a second angle. The second wall is connected to and continuous with the rim portion by a curve.

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