CN218257566U - Transaxle semi-axis and motor vehicle - Google Patents
Transaxle semi-axis and motor vehicle Download PDFInfo
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- CN218257566U CN218257566U CN202222617008.5U CN202222617008U CN218257566U CN 218257566 U CN218257566 U CN 218257566U CN 202222617008 U CN202222617008 U CN 202222617008U CN 218257566 U CN218257566 U CN 218257566U
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- half shaft
- transmission disc
- drive
- inner hole
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Abstract
The embodiment of the application discloses a drive axle half shaft and a motor vehicle. The drive axle half shaft comprises a first end for connecting a side gear, a second end for connecting a wheel hub, and an intermediate section connected between the first end and the second end; the second end comprises a transmission disc, the transmission disc extends along the radial direction of the middle section, and the peripheral surface of the transmission disc is provided with at least one protrusion/recess; the transmission disc is used for being clamped in an inner hole of the hub, and at least one protrusion/recess is used for being connected to at least one preset recess/protrusion of the inner hole in an embedded mode. Therefore, the embodiment of the application can be applied to the case with the additional bending moment.
Description
Technical Field
The application relates to the technical field of motor vehicles, in particular to a drive axle half shaft and a motor vehicle.
Background
The drive axle half shaft is also called a drive shaft, and is connected between the differential mechanism and the drive wheel to transmit the driving torque of the differential mechanism to the drive wheel to drive the drive wheel to rotate.
In the related art, one end of a half shaft of a drive axle is a spline shaft, and the other end of the half shaft of the drive axle is a flange. When the differential mechanism is used, one end of the drive axle half shaft is connected with a half shaft gear of the differential mechanism in a spline fit mode, and the other end of the drive axle half shaft is fixedly connected with a hub of a drive wheel through a flange plate. The power of the differential is transmitted to the wheel hub through the half-shaft gear and the drive axle half shaft, and drives the wheel hub to rotate, so that the drive wheel rotates.
However, the transaxle half shaft of the above-described solution is not suitable for cases with additional bending moments.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the problems mentioned in the background of the invention, embodiments of the present application provide a transaxle half shaft and a motor vehicle that can be adapted to situations with additional bending moments.
To achieve the above objects, in a first aspect, embodiments of the present application provide a transaxle half shaft including a first end for connecting a side gear, a second end for connecting a wheel hub, and an intermediate section connected between the first end and the second end;
the second end comprises a transmission disc, the transmission disc extends along the radial direction of the middle section, and the peripheral surface of the transmission disc is provided with at least one protrusion/recess;
the transmission disc is used for being clamped in an inner hole of the hub, and at least one protrusion/recess is used for being connected to at least one preset recess/protrusion of the inner hole in an embedded mode.
In one realized embodiment, a circle of protrusions are arranged on the outer peripheral surface of the transmission disc, so that a cylindrical external spline is formed on the transmission disc; a circle of recess is preset in the inner hole, so that a cylindrical inner spline is formed on the hub; the cylindrical external spline and the cylindrical internal spline are mutually meshed.
In an embodiment, the transmission disk is integrally connected to the intermediate section.
In a possible embodiment, the transmission disk is splined on the intermediate section.
In an embodiment that can realize, the driving disc includes interconnect's main disc and uide bushing, the main disc is located the uide bushing is kept away from one side of first end, the main disc with the hole of uide bushing is provided with first spline groove, be provided with the second spline groove on the interlude, first spline groove with the cooperation of pegging graft of second spline groove.
In an embodiment, the middle section is a drive shaft extending integrally, or the middle section is a steering drive shaft provided with a universal joint in the middle.
In a second aspect, the embodiment of the present application further provides a motor vehicle, which includes a wheel hub and the above-mentioned drive axle half shaft, wherein a transmission disc at a second end of the drive axle half shaft is clamped and installed at one side of an inner hole of the wheel hub, which is close to an outer end face; the circumferential surface of the inner hole is provided with at least one concave/convex part, and the at least one convex/concave part on the periphery of the transmission disc is embedded and connected with the at least one concave/convex part of the inner hole.
In an implementation manner, the hub further comprises a hub end cover, the hub end cover is located on one side close to the outer end face of the hub, and the hub end cover is fixedly connected with the hub.
In an implementation manner, clamping grooves are formed in the two sides of the inner hole, which correspond to the transmission disc, and retaining rings are arranged in the clamping grooves; each check ring is in clearance fit with the transmission disc.
The embodiment of the application provides a transaxle semi-axis and motor vehicle, this transaxle semi-axis includes first end, interlude and second end. The first end is connected with a half axle gear of the differential mechanism; the second end is connected to the hub through a transmission disc, and the transmission disc is matched with the hub through insertion; the intermediate section is connected between the first end and the second end. The drive torque transmission of interlude with the reduction gear holds to the second, and the driving disc of second end is rotatory through grafting cooperation drive wheel hub, and then drives the drive wheel and rotate. When the drive axle half shaft is subjected to additional bending moment, the driving disc and the hub which are in plug fit can ensure the reliability of torque transmission, proper axial clearance compensation can be carried out, and the additional bending moment on the drive axle half shaft can be released. The half shaft of the drive axle can be adapted to drive axles of various motor vehicles, non-road engineering machinery and the like, is suitable for highway transportation, is especially suitable for complex road conditions such as damaged roads and non-roads, and is very suitable for the application fields of high-mobility markets such as military use, police use, emergency rescue and the like. The motor vehicle comprises the drive axle half shaft and has the same beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a drive axle half shaft provided in an embodiment of the present application;
FIG. 2 is an assembly view of a drive axle half shaft and hub provided by an embodiment of the present application;
fig. 3 is an exploded view of fig. 2.
Description of reference numerals:
100-drive axle half shaft;
110-a first end;
120-a second end; 121-a transmission disc; 1211-main disc; 1212-a guide sleeve; 1213-bumps; 1214-a first spline groove;
130-middle section; 131-a second spline groove;
200-a hub;
210-hub end cap;
220-inner hole; 221-a recess;
301-a first collar; 302-a second retaining ring; 303-a third collar; 304-connecting bolts; 305-sealing ring.
Detailed Description
In the related art, the spline end of the drive axle half shaft is connected with a half shaft gear, and the flange end of the drive axle half shaft is fixedly connected with the end face of the wheel hub through a plurality of bolts. The driving torque of the differential is transmitted to the wheel hub through the half-shaft gear and the drive axle half shaft to drive the driving wheel to rotate. However, when the motor vehicle runs on a complex road surface such as a damaged road surface or a non-road surface, the axle half shaft is subjected to an additional bending moment, so that the bolts connected between the flange plate and the hub section are easily loosened or disconnected, and the reliability of torque transmission cannot be ensured.
Based on the technical problem, the embodiment of the application provides a drive axle half shaft and a motor vehicle. The transaxle half shaft includes a first end, a midsection, and a second end. The first end is connected with a half axle gear of the differential mechanism; the second end is connected to the hub through a transmission disc, and the transmission disc is matched with the hub through insertion; the intermediate section is connected between the first end and the second end. The drive torque of reduction gear is transmitted to the second end with the interlude, and the driving disc of second end is rotatory through grafting cooperation drive wheel hub, and then drives the drive wheel and rotate. When the drive axle half shaft is subjected to additional bending moment, the driving disc and the hub which are in plug fit can ensure the reliability of torque transmission, proper axial clearance compensation can be carried out, and the additional bending moment on the drive axle half shaft can be released. The half shaft of the drive axle can be adapted to drive axles of various motor vehicles, non-road engineering machinery and the like, is suitable for highway transportation, is especially suitable for complex road conditions such as damaged roads and non-roads, and is very suitable for the application fields of high-mobility markets such as military use, police use, emergency rescue and the like. The motor vehicle comprises the drive axle half shaft and has the same beneficial effects.
In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following will explain a motor vehicle provided in an embodiment of the present application with reference to fig. 2 and 3.
The embodiment of the application provides a motor vehicle (not shown) which comprises a wheel hub 200 and a drive axle half shaft 100, wherein a transmission disc 121 at the second end 120 of the drive axle half shaft 100 is clamped at one side of an inner hole 220 of the wheel hub 200, which is close to an outer end face. The circumference of the inner hole 220 is provided with at least one recess 221/protrusion 1213, and the at least one protrusion 1213/recess 221 of the outer circumference of the transmission disc 121 is embedded and connected to the at least one recess 221/protrusion 1213 of the inner hole 220.
The motor vehicle may include various motor vehicles, off-road construction machines, and other vehicles having a drive axle. Fig. 2 and 3 show a drive axle half shaft 100 and a wheel hub 200 of a drive axle, the drive axle half shaft 100 is inserted into an inner hole 220 of the wheel hub 200, one end of the drive axle half shaft 100 connected with the wheel hub 200 is a second end 120, the other end of the drive axle half shaft 100 is a first end 110, and an intermediate section 130 is arranged between the first end 110 and the second end 120. The side of hub 200 near first end 110 is the inside of hub 200, and the side of hub 200 far from first end 110 is the outside of hub 200.
At least one recess 221 is formed on the circumferential surface of the inner bore 220 of the hub 200. The drive disk 121 at the second end 120 of the axle shaft 100 is snap-fitted into the bore 220, and at least one protrusion 1213 on the drive disk 121 is snap-fitted into at least one recess 221. In some embodiments, protrusions 1213 may also be provided on the circumference of the inner bore 220 and recesses 221 may be provided on the drive disk 121.
It is understood that the number of the recesses 221 and the protrusions 1213 may be varied, and the two are inserted and embedded in a one-to-one correspondence, and the two may be in a small clearance fit, and the fit between the two may be 7H/7H. Therefore, the problem that the clearance is too small and the two do not compensate the clearance can be avoided, and the problem that the torque transmission reliability of the two is influenced by too large clearance can also be avoided.
From the above structure, the rotational torque of the first end 110 of the transaxle half shaft 100 can be transmitted to the second end 120 through the middle section 130, and the transmission disc 121 of the second end 120 can be transmitted to the hub 200 through the engagement of the protrusions 1213 and the recesses 221, so as to drive the hub 200 to rotate; meanwhile, when the drive axle half shaft 100 is subjected to additional bending moment, a proper amount of axial clearance compensation can be generated between the transmission disc 121 and the hub 200 at the matching position of the protrusion 1213 and the recess 221, so that the drive axle half shaft can be released from the additional bending moment, and the drive axle half shaft 100 is prevented from being damaged.
In an implementation, referring to fig. 3, a hub cover 210 is further included, the hub cover 210 is located at a side close to the outer end face of the hub 200, and the hub cover 210 is fixedly connected to the hub 200.
Wherein, the hub cover 210 can be connected to the outer end face side of the hub 200 by the connection bolt 304. A seal ring 305 is installed between the hub end cover 210 and the hub 200, and the seal ring 305 is an O-ring to prevent grease in the hub 200 from leaking.
In an implementation manner, referring to fig. 3, clamping grooves are formed in two sides of the inner hole 220 corresponding to the transmission disc 121, and retaining rings are installed in the clamping grooves; each of the retaining rings is in clearance fit with the drive plate 121 so that the drive plate 121 can move slightly axially.
A first retainer ring 301 can be arranged between the outer end face of the transmission disc 121 and the hub end cover 210, and the first retainer ring 301 can be a circlip for holes; a second retainer ring 302 can be arranged between the inner end face of the transmission disc 121 and the hub 200, and the second retainer ring 302 can be a steel wire retainer ring for a hole, so that the axial positioning of the transmission disc 121 is realized.
In this way, direct impact with the hub 200 during axial movement of the transmission disc 121 can be reduced, and the hub 200 can be protected.
The transaxle half shaft 100 provided in the embodiments of the present application will be described below with reference to fig. 1 to 3.
The present embodiment provides a transaxle half shaft 100, shown with reference to fig. 1-2, including a first end 110 for coupling to a side gear, a second end 120 for coupling to a hub 200, and an intermediate section 130 coupled between the first end 110 and the second end 120.
The second end 120 comprises a transmission disc 121, the transmission disc 121 extending in a radial direction of the intermediate section 130, and the transmission disc 121 being provided with at least one protrusion 1213/depression 221 on its outer circumferential surface.
The transmission disc 121 is clamped in the inner hole 220 of the hub 200, and at least one protrusion 1213/depression 221 is connected to at least one depression 221/protrusion 1213 preset in the inner hole 220 in an embedded manner.
Generally, intermediate section 130 extends along a line drawn between first end 110 and second end 120, and the direction of extension of intermediate section 130 constitutes the axial direction of transaxle half shaft 100.
The driving plate 121 of the second end 120 has a disk shape with a certain thickness. The inner peripheral surface of the transmission disc 121 is connected to the middle section 130, and the outer edge of the transmission disc 121 is clamped to one end of the inner hole 220 of the hub 200 close to the outer side surface. Protrusions 1213 are provided on the outer circumferential surface of the transmission disc 121 and recesses 221 are provided on the circumferential surface of the inner hole 220 of the hub 200, or alternatively, the protrusions 1213 are provided on the outer circumferential surface of the transmission disc 121 and the recesses 221 are provided on the circumferential surface of the inner hole 220 of the hub 200.
The number and the distribution positions of the protrusions 1213 and the recesses 221 are set according to design requirements, and the protrusions and the recesses are correspondingly inserted and matched one to one, so that torque transmission between the transmission disc 121 and the hub 200 is realized, and when the drive axle half shaft 100 is subjected to additional bending moment, a proper amount of axial clearance compensation is performed, the additional bending moment is released, and the drive axle half shaft 100 is prevented from being damaged.
In one possible embodiment, a ring of protrusions 1213 is provided on the outer circumferential surface of the drive disk 121, such that the drive disk 121 is formed with a cylindrical external spline. A circle of recess is preset in the inner hole 220 of the hub 200, so that a cylindrical inner spline is formed on the hub 200. The cylindrical external spline and the cylindrical internal spline are mutually meshed.
Like this, directly process into the cylinder external splines with driving plate 121, process into the cylinder internal spline with wheel hub 200's hole 220, driving plate 121 passes through spline meshing wheel hub 200, all has good torque transmission and bending resistance moment performance to circumference.
In one possible embodiment, the drive plate 121 is integrally connected to the intermediate section 130.
Like this, driving disk 121 and interlude 130 integrative preparation, processing is convenient, realizes the torque transmission of interlude 130 and driving disk 121.
In one possible embodiment, the drive plate 121 is splined to the intermediate section 130.
In this way, the drive plate 121 is assembled with the intermediate section 130 in sections for ease of installation.
In one possible embodiment, the transmission disc 121 includes a main disc 1211 and a guide sleeve 1212 connected to each other, the main disc 1211 is located on a side of the guide sleeve 1212 away from the first end 110, inner bores of the main disc 1211 and the guide sleeve 1212 are provided with a first spline groove 1214, the intermediate section 130 is provided with a second spline groove 131, and the first spline groove 1214 and the second spline groove 131 are in plug-fit.
The main plate 1211 is a circular plate having a certain thickness, and the guide sleeve 1212 is an annular sleeve, which are integrally formed. A first spline groove 1214 is processed in inner holes of the main disc 1211 and the guide sleeve 1212, and a second spline groove 131 is processed at one end of the middle section 130, where the transmission disc 121 is installed, so that the centering and assembling of the transmission disc 121 and the middle section 130 are facilitated.
In some embodiments, the middle section 130 further has third retaining rings 303 mounted on two sides corresponding to the transmission disc 121 for limiting the axial direction of the transmission disc 121, and the third retaining rings 303 may be shaft circlips.
In one possible embodiment, the intermediate section 130 is a drive shaft extending integrally, or the intermediate section 130 is a steering drive shaft with a universal joint in the middle.
It will be appreciated that the intermediate section 130 may be a drive shaft in the form of an integrally extending elongated rod. The middle section 130 may also be a steering transmission shaft with a steering function, and a universal joint is installed in the middle.
In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. A transaxle half shaft comprising a first end for coupling to a side gear, a second end for coupling to a hub, and an intermediate section coupled between the first end and the second end;
the second end comprises a transmission disc, the transmission disc extends along the radial direction of the middle section, and the peripheral surface of the transmission disc is provided with at least one protrusion/recess;
the transmission disc is used for being clamped in an inner hole of the hub, and at least one protrusion/recess is used for being connected to at least one preset recess/protrusion of the inner hole in an embedded mode.
2. The axle shaft as claimed in claim 1, wherein a ring of protrusions are formed on the outer circumferential surface of said driving disk, so that a cylindrical external spline is formed on said driving disk; a circle of recess is preset in the inner hole, so that a cylindrical inner spline is formed on the hub; the cylindrical external spline and the cylindrical internal spline are meshed with each other.
3. The transaxle half shaft of claim 1 or 2 wherein the drive plate is integrally connected to the intermediate section.
4. The transaxle half shaft of claim 1 or 2 wherein the drive plates are splined to the intermediate section.
5. The drive axle half shaft of claim 4, wherein the drive plate comprises a main plate and a guide sleeve connected with each other, the main plate is located on one side of the guide sleeve away from the first end, inner holes of the main plate and the guide sleeve are provided with first spline grooves, the middle section is provided with second spline grooves, and the first spline grooves and the second spline grooves are in plug fit.
6. The transaxle half shaft of claim 1 or claim 2 wherein the intermediate section is an integrally extending drive shaft or a steering drive shaft having a universal joint at the intermediate section.
7. A motor vehicle comprising a hub and a drive axle half shaft according to any one of claims 1 to 6, wherein the drive disk at the second end of the drive axle half shaft is clamped in the inner hole of the hub on the side close to the outer end face; the periphery of the inner hole is provided with at least one concave/convex part, and the at least one convex/concave part on the periphery of the transmission disc is embedded and connected with the at least one concave/convex part of the inner hole.
8. The motor vehicle of claim 7 further comprising a hub end cap positioned adjacent the hub outer end face, the hub end cap being fixedly connected to the hub.
9. The motor vehicle of claim 8, wherein the inner hole is provided with a clamping groove corresponding to both sides of the transmission disc, and a retaining ring is arranged in each clamping groove; each check ring is in clearance fit with the transmission disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222617008.5U CN218257566U (en) | 2022-10-04 | 2022-10-04 | Transaxle semi-axis and motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222617008.5U CN218257566U (en) | 2022-10-04 | 2022-10-04 | Transaxle semi-axis and motor vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN218257566U true CN218257566U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222617008.5U Active CN218257566U (en) | 2022-10-04 | 2022-10-04 | Transaxle semi-axis and motor vehicle |
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| CN (1) | CN218257566U (en) |
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