Reinforcing structure of automobile rear axle
By improving the structural design of the rear axle of automobiles and adopting components such as axle housing, half-shaft sleeve, connecting plate, and protective cover, the structural strength and protective function of the rear axle have been enhanced, solving the problems of fatigue damage and lack of protection, and achieving a longer service life and driving safety.
Patent Information
- Application Number
- CN202520339971.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing automotive rear axle structures are prone to fatigue damage under long-term exposure to complex loads and lack protective features, affecting driving safety and service life.
A rear axle reinforcement structure for automobiles was designed, including components such as axle housing, axle sleeve, connecting plate, protective cover, reinforcing rod, sliding sleeve, hinge, reset mechanism, and buffer spring. The combined use of these components enhances structural strength, absorbs vibration and impact, adjusts the position of the protective cover, reduces wind resistance, guides foreign objects to slide over, and improves connection stability and installation convenience.
It effectively improves the strength and protective function of the rear axle structure, extends its service life, reduces wind resistance and the possibility of damage to the protective cover, enhances the stability of the connection and the convenience of installation, and ensures driving safety.
Smart Images

Figure CN223672178U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a reinforcing structure of an automobile rear axle. BACKGROUND
[0002] The automobile rear axle, as an important component of the automobile transmission system, bears the important functions of supporting the weight of the vehicle body, transmitting driving force and ensuring the stability of vehicle driving. During the driving of the automobile, the rear axle will be subjected to various complex forces from the road surface, such as vertical force, horizontal force and lateral force.
[0003] Based on the above, the present inventor found that the existing automobile rear axle structure is prone to fatigue damage under long-term complex load, and does not have a protection function, which affects the driving safety and service life of the automobile.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a reinforcing structure of an automobile rear axle is provided to achieve a more practical value. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a reinforcing structure of an automobile rear axle to solve the problem of fatigue damage of the existing automobile rear axle structure under long-term complex load, and the lack of protection function, which affects the driving safety and service life of the automobile.
[0006] In view of the above problems, the technical scheme provided by the utility model is:
[0007] A reinforcing structure of an automobile rear axle, comprising a bridge shell, both ends of the bridge shell are connected with half shaft sleeve pipes, the top end of the half shaft sleeve pipe is provided with a connecting plate, the bottom end of the bridge shell is provided with a protective cover, both ends of the protective cover extend to the bottom end of the half shaft sleeve pipe, the bottom end of a pair of half shaft sleeve pipes is provided with a reinforcing rod, the outer bottom end of the reinforcing rod is slidably connected with a sliding sleeve, the bottom end of the sliding sleeve is provided with a first hinge, one end of the first hinge is provided with a connecting rod, one end of the connecting rod is provided with a second hinge, one end of the second hinge is fixedly connected with the top end of the protective cover, and the bottom end of the sliding sleeve is provided with a reset mechanism.
[0008] Further, the reset mechanism comprises a first connecting frame, a damper is mounted on one side of the first connecting frame, one end of the damper is provided with a second connecting frame, the top end of the second connecting frame is fixedly connected with the bottom end of the half shaft sleeve pipe, and a buffer spring is sleeved outside the damper.
[0009] The beneficial effect of adopting the above-mentioned further solution is that by sleeved with a buffer spring on the outside of the damper, the vibration and impact generated during vehicle operation can be effectively absorbed and buffered, further ensuring the normal reset of the sliding sleeve and extending the service life of the structure.
[0010] Furthermore, one end of the buffer spring is connected to one side of the first connecting frame, and the other end of the buffer spring is connected to one side of the second connecting frame.
[0011] The beneficial effect of adopting the above-mentioned further solution is that the connection stability of the buffer spring is improved by setting up the buffer spring, the first connecting frame and the second connecting frame.
[0012] Furthermore, the bottom two sides of the protective cover are both inclined.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the inclined design on both sides of the bottom of the protective cover can reduce wind resistance during driving. At the same time, when encountering obstacles, the inclined design can guide foreign objects to slide over, reducing the possibility of damage to the protective cover and better protecting the axle housing and internal components.
[0014] Furthermore, the reinforcing rod is in the shape of an "I".
[0015] Furthermore, mounting holes are provided at all four corners of the top of the connecting plate.
[0016] The beneficial effect of adopting the above-mentioned further solution is that, since mounting holes are provided at the four corners of the top of the connecting plate, it is convenient to fix other components to the connecting plate with bolts or other connectors, thereby improving the convenience and stability of installation.
[0017] Furthermore, a pair of reinforcing blocks are installed on both sides of the connecting plate, and the bottom end of the reinforcing blocks is fixedly connected to the top end of the half-shaft sleeve.
[0018] The beneficial effect of adopting the above-mentioned further solution is that by installing a pair of reinforcing blocks on both sides of the connecting plate, the connection strength between the connecting plate and the half-shaft sleeve is enhanced, making the entire structure more stable and able to withstand greater external forces.
[0019] Compared with the prior art, the automobile rear axle reinforcing structure has the advantages that the reinforcing rods are arranged at the bottom ends of the half axle sleeve pipes, the structural strength of the half axle sleeve pipes is enhanced, the position of the protective cover can be adjusted through the arrangement of the sliding sleeve, the first hinge, the connecting rod and the second hinge, the buffering and protecting property of the protective cover is improved, the buffer spring is arranged on the outer side of the damper, the vibration and impact force generated during the driving of the vehicle can be effectively absorbed and buffered, the normal reset of the sliding sleeve is further ensured, the service life of the structure is prolonged, the connecting stability of the buffer spring is improved through the arrangement of the buffer spring, the first connecting frame and the second connecting frame, the bottom ends of the protective cover are inclined on both sides, the wind resistance during driving can be reduced, when obstacles are encountered, the inclined design can guide the foreign matters to slide, the possibility of damage of the protective cover is reduced, the axle housing and the internal parts are better protected, the mounting holes are arranged at the top corners of the connecting plate, other parts can be fixed on the connecting plate through bolts and other connecting pieces, the convenience and stability of installation are improved, a pair of reinforcing blocks are arranged on the two sides of the connecting plate, the connecting strength between the connecting plate and the half axle sleeve pipe is enhanced, the whole structure is more stable and can withstand greater external force, the rear axle structure strength can be effectively improved, the protective function is achieved, and the practical value is high. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 A three-dimensional structure schematic view disclosed by the embodiment of the utility model is shown in the figure.
[0021] Figure 2 A three-dimensional structure schematic view disclosed by the embodiment of the utility model is shown in the figure.
[0022] Figure 3 A three-dimensional structure schematic view disclosed by the embodiment of the utility model is shown in the figure.
[0023] Figure 4 A three-dimensional structure schematic view disclosed by the embodiment of the utility model is shown in the figure. Figure 1 A structure amplification schematic view of the middle A structure disclosed by the embodiment of the utility model is shown in the figure.
[0024] Figure 5 A structure amplification schematic view of the middle B structure disclosed by the embodiment of the utility model is shown in the figure. Figure 2
[0025] In the figure: 100, axle housing; 101, half axle sleeve pipe; 102, connecting plate; 10201, mounting hole; 10202, reinforcing block; 103, protective cover; 104, reinforcing rod; 105, sliding sleeve; 106, first hinge; 107, connecting rod; 108, second hinge; 109, reset mechanism; 10901, first connecting frame; 10902, damper; 10903, buffer spring; 10904, second connecting frame. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0027] Referring to Figures 1-5 The utility model provides a kind of technical scheme: a kind of reinforcing structure of automobile rear axle, including axle housing 100, the both ends of axle housing 100 are connected with half shaft sleeve pipe 101, the top end of half shaft sleeve pipe 101 is installed with connecting plate 102, the bottom end of axle housing 100 is equipped with protective cover 103, the both ends of protective cover 103 extend to the bottom end of half shaft sleeve pipe 101, the bottom end of a pair of half shaft sleeve pipe 101 is installed with reinforcing rod 104, the outside bottom end of reinforcing rod 104 is slidably connected with sliding sleeve 105, the bottom end of sliding sleeve 105 is installed with first hinge 106, one end of first hinge 106 is installed with connecting rod 107, one end of connecting rod 107 is installed with second hinge 108, one end of second hinge 108 and the top end of protective cover 103 are fixedly connected, the bottom end of sliding sleeve 105 is installed with reset mechanism 109, by the bottom end of a pair of half shaft sleeve pipe 101 is installed with reinforcing rod 104, the structural strength of half shaft sleeve pipe 101 is enhanced, by the setting of sliding sleeve 105, first hinge 106, connecting rod 107 and second hinge 108, the position of protective cover 103 can be adjusted, improve the buffering protection of protective cover 103.
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0029] Referring to Figures 1-5The reset mechanism 109 includes a first connecting frame 10901, a damper 10902 installed on one side of the first connecting frame 10901, and a second connecting frame 10904 installed on one end of the damper 10902. The top end of the second connecting frame 10904 is fixedly connected to the bottom end of the half-shaft sleeve 101. A buffer spring 10903 is sleeved on the outside of the damper 10902. One end of the buffer spring 10903 is connected to one side of the first connecting frame 10901, and the other end of the buffer spring 10903 is connected to one side of the second connecting frame 10904. By sleeved on the outside of the damper 10902, the buffer spring 10903 can effectively absorb and buffer the vibration and impact generated during vehicle operation, further ensuring the normal reset of the sliding sleeve 105 and extending the service life of the structure. The connection stability of the buffer spring 10903 is improved by setting the buffer spring 10903, the first connecting frame 10901, and the second connecting frame 10904.
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figures 1-5 The protective cover 103 has an inclined design on both sides of its bottom end, and the reinforcing rod 104 is in the shape of an "I". The top four corners of the connecting plate 102 are provided with mounting holes 10201. A pair of reinforcing blocks 10202 are installed on both sides of the connecting plate 102. The bottom end of the reinforcing blocks 10202 is fixedly connected to the top end of the half-shaft sleeve 101. The inclined design on both sides of the bottom end of the protective cover 103 can reduce wind resistance during driving. At the same time, when encountering obstacles, the inclined design can guide foreign objects to slide over, reducing the possibility of damage to the protective cover 103 and better protecting the axle housing and internal components. The mounting holes 10201 at the four corners of the top end of the connecting plate 102 make it convenient to fix other components to the connecting plate 102 with bolts and other connectors, improving the convenience and stability of installation. The pair of reinforcing blocks 10202 installed on both sides of the connecting plate 102 enhances the connection strength between the connecting plate 102 and the half-shaft sleeve 101, making the entire structure more stable and able to withstand greater external forces.
[0032] Specifically, the working principle of the reinforcing structure of the automobile rear axle: in use, the bottom end of a pair of half shaft sleeve pipes 101 is provided with a reinforcing rod 104, which enhances the structural strength of the half shaft sleeve pipe 101, the position of the protective cover 103 can be adjusted through the setting of the sliding sleeve 105, the first hinge 106, the connecting rod 107 and the second hinge 108, the buffering and protecting property of the protective cover 103 is improved, the outer side of the damper 10902 is provided with a buffer spring 10903, which can effectively absorb and buffer the vibration and impact force generated during vehicle driving, further ensuring the normal reset of the sliding sleeve 105, prolonging the service life of the structure, the connecting stability of the buffer spring 10903 is improved through the setting of the buffer spring 10903, the first connecting frame 10901 and the second connecting frame 10904, the bottom end of the protective cover 103 is inclined on both sides, which can reduce the wind resistance during driving, and when obstacles are encountered, the inclined design can guide the foreign matter to slide over, reducing the possibility of damage to the protective cover 103, better protecting the axle housing and internal parts, the top corners of the connecting plate 102 are provided with mounting holes 10201, which facilitates the fixation of other parts on the connecting plate 102 through bolts and other connecting parts, improving the convenience and stability of installation, a pair of reinforcing blocks 10202 are installed on both sides of the connecting plate 102, which enhances the connecting strength between the connecting plate 102 and the half shaft sleeve pipe 101, makes the whole structure more stable, can bear greater external force, the utility model can effectively improve the strength of the rear axle structure, has the protection function, has higher practical value.
Claims
1. A reinforcing structure for a car rear axle, characterized in that, The application relates to a half shaft sleeve pipe connecting device of a vehicle axle, which comprises a bridge shell (100), half shaft sleeve pipes (101) connected to two ends of the bridge shell (100), a connecting plate (102) installed at the top end of the half shaft sleeve pipe (101), a protective cover (103) arranged at the bottom end of the bridge shell (100), the protective cover (103) extending to the bottom end of the half shaft sleeve pipe (101), a reinforcing rod (104) installed at the bottom end of the half shaft sleeve pipe (101), a sliding sleeve (105) slidingly connected to the outer bottom end of the reinforcing rod (104), a first hinge (106) installed at the bottom end of the sliding sleeve (105), a connecting rod (107) installed at one end of the first hinge (106), a second hinge (108) installed at one end of the connecting rod (107), and a reset mechanism (109) installed at the bottom end of the sliding sleeve (105).
2. The reinforcing structure for a rear axle of an automobile according to claim 1, wherein The reset mechanism (109) comprises a first connecting frame (10901), a damper (10902) installed at one side of the first connecting frame (10901), a second connecting frame (10904) installed at one end of the damper (10902), and a buffer spring (10903) sleeved outside the damper (10902).
3. The reinforcing structure for a rear axle of an automobile according to claim 2, characterized by One end of the buffer spring (10903) is connected to one side of the first connecting frame (10901), and the other end of the buffer spring (10903) is connected to one side of the second connecting frame (10904).
4. The reinforcing structure for a rear axle of an automobile according to claim 1, wherein The bottom end of the protective cover (103) is inclined.
5. The reinforcing structure for a rear axle of an automobile according to claim 1, wherein The reinforcing rod (104) is in a ''H'' shape.
6. The reinforcing structure for a rear axle of an automobile according to claim 1, wherein Mounting holes (10201) are arranged at the top end of the connecting plate (102).
7. The reinforcing structure for a rear axle of an automobile according to claim 1, wherein A pair of reinforcing blocks (10202) are arranged at the two sides of the connecting plate (102), and the bottom end of the reinforcing block (10202) is fixedly connected to the top end of the half shaft sleeve pipe (101).