High-stability and high-anti-vibration automobile steering shaft

Abstract

The utility model discloses a high stable high anti -seismic car steering axle, including first axle body and second axle body, the lower extreme of first axle body is equipped with the installation groove, the upper extreme of second axle body is equipped with the connecting groove, the connecting groove has the multiple guide convex stripe of second axle body axial extension in array, the lower extreme outer periphery of first axle body still has the multiple guide groove of corresponding each guide convex stripe in array, the lower extreme sliding connection of first axle body is in the connecting groove, each guide convex stripe is matched with corresponding guide groove, the installation groove still is fixed with shock absorber, the piston rod end portion of shock absorber is fixed with the bottom of connecting groove, the lower extreme of first axle body and the upper extreme of second axle body still are connected with spring, the utility model discloses stable and reliable, and also have higher anti -seismic performance.

Description

Technical Field

[0001] This utility model relates to a highly stable and shock-resistant automotive steering shaft. Background Technology

[0002] Patent CN219277601U discloses a steering shaft with an anti-vibration structure, including a first shaft body, a fixing rod installed on the top of the first shaft body, a rubber disc body evenly spaced around the outer ring of the fixing rod, shock absorbers installed on both sides of the middle of the rubber disc body, a second shaft body installed at the top center of the rubber disc body, a turntable installed on the top of the second shaft body, connecting screws installed at the four corners of the outer wall of the rubber disc body, a limit connection component installed on the top of the turntable, a connecting component installed inside the limit connection component, and a limit component installed on the top of the connecting component. It is connected to the car through the limit rotating component, the connecting component, and the limit component. During rotation, it is rotated and connected through the first shaft body, the second shaft body, and the limit component. In the steering shaft of the above structure, the first shaft body and the second shaft body are connected by a rubber disc and a shock absorber. When the steering shaft rotates, the rubber disc and the shock absorber will bear a large torque, which is prone to breakage and is not reliable enough. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reliable, highly stable, and highly shock-resistant automotive steering shaft.

[0004] The technical solution of this utility model is: a high-stability and high-vibration-resistant automotive steering shaft, including a first shaft and a second shaft. The lower end of the first shaft is provided with a mounting groove, and the upper end of the second shaft is provided with a connecting groove. Multiple guide protrusions extending axially along the second shaft are arrayed in the connecting groove. Multiple guide grooves corresponding to each guide protrusion are also arrayed on the outer periphery of the lower end of the first shaft. The lower end of the first shaft is slidably connected in the connecting groove. Each guide protrusion matches the corresponding guide groove. A shock absorber is also fixed in the mounting groove. The piston rod end of the shock absorber is fixed to the bottom of the connecting groove. A spring is also connected between the lower end of the first shaft and the upper end of the second shaft.

[0005] Furthermore, a first flange is fixed to the lower end of the first shaft, and a second flange is fixed to the upper end of the second shaft. The spring is sleeved at the connection between the first shaft and the second shaft, and the two ends of the spring are respectively connected to the first flange and the second flange.

[0006] Furthermore, the outer periphery of the spring is also arrayed with multiple guide rods, and both the first flange and the second flange are provided with multiple pairs of guide holes corresponding to each guide rod. The two ends of each guide rod pass through the corresponding guide hole and are screwed with an adjusting nut.

[0007] Furthermore, the first flange and the second flange are respectively provided with fixed ends, and the two fixed ends and the first shaft and the second shaft are respectively provided with corresponding screw holes. The two fixed ends are fixed to the first shaft and the second shaft respectively by fixing bolts.

[0008] Furthermore, corresponding positioning marks are provided on the two fixed ends and the first and second shafts, respectively.

[0009] Furthermore, a connecting seat is fixed to the end of the shock absorber and the end of the piston rod, respectively, and the two connecting seats are fixed in the mounting groove and the connecting groove, respectively.

[0010] Furthermore, each of the two connecting seats is provided with a through hole, the first shaft is provided with a pair of connecting holes that pass through the mounting groove, and the second shaft is provided with a pair of connecting holes that pass through the connecting groove. Two long bolts pass through the corresponding connecting holes and through holes to fix the two connecting seats in the mounting groove and connecting groove respectively.

[0011] Specifically, the outer diameter of the shock absorber corresponds to the inner diameter of the mounting groove, and the outer wall of the shock absorber abuts against the inner wall of the mounting groove.

[0012] Furthermore, the two connecting holes are located below the first flange and above the second flange, respectively, and after the long bolts are fixed, they also serve to position the first flange and the second flange.

[0013] The beneficial effects of this utility model are: the shock absorber and spring between the first shaft and the second shaft play a shock absorption role, which can effectively improve the anti-vibration performance of the steering shaft. When the steering shaft rotates, the guide convex strip of the first shaft and the guide groove of the second shaft act as a key and keyway, and the shock absorber and spring are not subjected to force, which can ensure the stability of the steering shaft. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure at the connection between the first shaft and the second shaft in this utility model.

[0015] In the figure: First shaft 1, Second shaft 2, Mounting groove 3, Connecting groove 4, Guide protrusion 5, Guide groove 6, Shock absorber 7, Piston rod 8, Spring 9, First flange 10, Second flange 11, Guide rod 13, Adjusting nut 14, Fixed end 15, Connecting seat 16, Through hole 17. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] Combination Figure 1-3 As shown, a high-stability, high-vibration-resistant automotive steering shaft includes a first shaft 1 and a second shaft 2. The lower end of the first shaft 1 is provided with a mounting groove 3, and the upper end of the second shaft 2 is provided with a connecting groove 4. Multiple guide protrusions 5 extending axially along the second shaft 2 are arrayed in the connecting groove 4. Multiple guide grooves 6 corresponding to each guide protrusion 5 are also arrayed on the outer periphery of the lower end of the first shaft 1. The lower end of the first shaft 1 is slidably connected in the connecting groove 4. Each guide protrusion 5 matches the corresponding guide groove 6. A shock absorber 7 is also fixed in the mounting groove 3. The end of the piston rod 8 of the shock absorber 7 is fixed to the bottom of the connecting groove 4. A spring 9 is also connected between the lower end of the first shaft 1 and the upper end of the second shaft 2.

[0018] In the above structure, the shock absorber 7 and spring 9 between the first shaft 1 and the second shaft 2 play a shock absorption role, which can effectively improve the anti-vibration performance of the steering shaft. When the steering shaft rotates, the guide convex strip 5 of the first shaft 1 and the guide groove 6 of the second shaft 2 act as a key and keyway, and the shock absorber 7 and spring 9 are not subjected to force, which can ensure the stability of the steering shaft.

[0019] In another embodiment, combined Figure 1 and Figure 2 As shown, a first flange 10 is fixed to the lower end of the first shaft 1, and a second flange 11 is fixed to the upper end of the second shaft 2. The spring 9 is sleeved at the connection between the first shaft 1 and the second shaft 2, and the two ends of the spring 9 are respectively connected to the first flange 10 and the second flange 11.

[0020] In another embodiment, combined Figure 1 and Figure 2 As shown, the outer periphery of the spring 9 is also arrayed with multiple guide rods 13. The first flange 10 and the second flange 11 are each provided with multiple pairs of guide holes corresponding to each guide rod 13. The two ends of each guide rod 13 pass through the corresponding guide holes and are screwed with adjusting nuts 14. The arrangement of each guide rod 13 strengthens the connection between the first shaft 1 and the second shaft 2, so that the steering shaft can withstand greater torque and tension. On the other hand, the preload of the spring 9 can be adjusted by rotating the adjusting nut 14.

[0021] In another embodiment, combined Figure 1 and Figure 2 As shown, the first flange 10 and the second flange 11 are respectively provided with fixed ends 15. The two fixed ends 15 and the first shaft 1 and the second shaft 2 are respectively provided with corresponding screw holes. The two fixed ends 15 are fixed to the first shaft 1 and the second shaft 2 respectively by fixing bolts.

[0022] In another embodiment, the two fixed ends 15 and the first shaft 1 and the second shaft 2 are respectively provided with corresponding positioning marks to facilitate the alignment of each screw hole.

[0023] In another embodiment, combined Figure 1 and Figure 2 As shown, a connecting seat 16 is fixed to the end of the shock absorber 7 and the end of the piston rod 8, respectively, and the two connecting seats 16 are fixed in the mounting groove 3 and the connecting groove 4, respectively.

[0024] In another embodiment, each of the two connecting seats 16 is provided with a through hole 17, the first shaft 1 is provided with a pair of connecting holes that pass through the mounting groove 3, and the second shaft 2 is provided with a pair of connecting holes that pass through the connecting groove 4. Two long bolts pass through the corresponding connecting holes and through holes 17 to fix the two connecting seats 16 in the mounting groove 3 and the connecting groove 4 respectively.

[0025] In another embodiment, such as Figure 1 As shown, the outer diameter of the shock absorber 7 corresponds to the inner diameter of the mounting groove 3, and the outer wall of the shock absorber 7 abuts against the inner wall of the mounting groove 3 to prevent the shock absorber 7 from shaking in the mounting groove 3.

[0026] In another embodiment, such as Figure 1 As shown, the two connecting holes are located below the first flange 10 and above the second flange 11, respectively. After the long bolts are fixed, they also serve to position the first flange 10 and the second flange 11.

Claims

1. A high-stability, high-vibration-resistant automotive steering axle, comprising a first axle body (1) and a second axle body (2), characterized in that, The lower end of the first shaft (1) is provided with a mounting groove (3), and the upper end of the second shaft (2) is provided with a connecting groove (4). Multiple guide protrusions (5) extending axially along the second shaft (2) are arranged in the connecting groove (4). Multiple guide grooves (6) corresponding to each guide protrusion (5) are also arranged on the outer periphery of the lower end of the first shaft (1). The lower end of the first shaft (1) is slidably connected in the connecting groove (4). Each guide protrusion (5) matches the corresponding guide groove (6). A shock absorber (7) is also fixed in the mounting groove (3). The end of the piston rod (8) of the shock absorber (7) is fixed to the bottom of the connecting groove (4). A spring (9) is also connected between the lower end of the first shaft (1) and the upper end of the second shaft (2).

2. The high-stability, high-vibration-resistant automotive steering axle as described in claim 1, characterized in that, The first shaft (1) is fixed with a first flange (10) at its lower end, and the second shaft (2) is fixed with a second flange (11) at its upper end. The spring (9) is sleeved at the connection between the first shaft (1) and the second shaft (2), and the two ends of the spring (9) are respectively connected to the first flange (10) and the second flange (11).

3. The high-stability, high-vibration-resistant automotive steering axle as described in claim 2, characterized in that, The outer periphery of the spring (9) is also arrayed with a plurality of guide rods (13). The first flange (10) and the second flange (11) are provided with a plurality of guide holes corresponding to each guide rod (13). The two ends of each guide rod (13) pass through the corresponding guide holes and are screwed with an adjusting nut (14).

4. The high-stability, high-vibration-resistant automotive steering axle as described in claim 3, characterized in that, The first flange (10) and the second flange (11) are respectively provided with fixed ends (15), and the two fixed ends (15) and the first shaft (1) and the second shaft (2) are respectively provided with corresponding screw holes. The two fixed ends (15) are fixed to the first shaft (1) and the second shaft (2) respectively by fixing bolts.

5. A high-stability, high-vibration-resistant automotive steering axle as described in claim 4, characterized in that, The two fixed ends (15) and the first shaft (1) and the second shaft (2) are also provided with corresponding positioning marks.

6. A high-stability, high-vibration-resistant automotive steering axle as described in claim 5, characterized in that, A connecting seat (16) is fixed to the end of the shock absorber (7) and the end of the piston rod (8), respectively. The two connecting seats (16) are fixed in the mounting groove (3) and the connecting groove (4), respectively.

7. A high-stability, high-vibration-resistant automotive steering axle as described in claim 6, characterized in that, Each of the two connecting seats (16) is provided with a through hole (17). The first shaft (1) is provided with a pair of connecting holes that pass through the mounting groove (3). The second shaft (2) is provided with a pair of connecting holes that pass through the connecting groove (4). Two long bolts pass through the corresponding connecting holes and through holes (17) to fix the two connecting seats (16) in the mounting groove (3) and connecting groove (4) respectively.

8. A high-stability, high-vibration-resistant automotive steering shaft as described in claim 7, characterized in that, The outer diameter of the shock absorber (7) corresponds to the inner diameter of the mounting groove (3), and the outer wall of the shock absorber (7) abuts against the inner wall of the mounting groove (3).

9. A high-stability, high-vibration-resistant automotive steering shaft as described in claim 8, characterized in that, The two connecting holes are located below the first flange (10) and above the second flange (11), respectively. After the long bolts are fixed, they also play a positioning role in the installation position of the first flange (10) and the second flange (11).

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