Plate spring seat for axle connection

Abstract

The utility model discloses a plate spring seat for axle connection. The plate spring seat comprises an upper plate spring seat (21) and a lower plate spring seat (22), the upper plate spring seat (21) and the lower plate spring seat (22) are provided with through holes for straight or U-shaped bolts to pass through; a pair of limiting rib plates (23) is arranged on the side, facing an axle (12), of each of the upper plate spring seat (21) and the lower plate spring seat (22), the limiting rib plates (23) are longitudinally located on the two sides of the axle (12), each limiting rib plate (23) is transversely arranged, a plurality of positioning holes (24) are formed in each limiting rib plate (23), and plug screws can abut against the axle (12) after being in threaded connection with the positioning holes (24). And the vertical plates (30) are longitudinally arranged, and each vertical plate (30) is fixed between the upper plate spring seat (21) and the lower plate spring seat (22). The plate spring seat is simple and compact in structure, stable bearing is achieved, welding stress is reduced, the service life of a used vehicle is prolonged, and welding stress concentration caused by welding of traditional upper and lower plate spring seats on an axle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a leaf spring seat for connecting vehicle axles. Background Art

[0002] The leaf spring seat is a part of automobile parts, which is mainly used to connect the C-beam 11 and the axle 12, that is, the leaf spring seat body 20 includes an upper leaf spring seat 21 and a lower leaf spring seat 22. The highway air suspension assembly of the traditional C-beam 11 is generally fixed to the axle 12 through the upper and lower leaf spring seats 22 using straight or U-shaped bolts to ensure the stability of the vehicle and transmit the load at the same time.

[0003] like Figure 5 As shown, in the conventional leaf spring seat assembly process, the upper and lower leaf spring seats 22 and the bridge housing need to be spot welded respectively, and then welded as a whole along the contact line, and then straight or U-shaped bolts are passed through the upper and lower leaf spring seats 22 and the C-beam 11 to achieve a fixed connection between the axle 12 and the C-beam 11;

[0004] In actual use, uneven roads, eccentric loads, etc. often cause the welding areas of the upper and lower leaf spring seats 22 to tear, posing a safety hazard. That is, the leaf spring seat connected in the above manner is prone to stress concentration at the weld, and the uneven roads and eccentric loads generate forces and impacts on the leaf spring seat, which will reduce the fatigue strength of the weld structure and make fatigue cracks and fractures more likely to occur. Summary of the invention

[0005] The utility model aims to provide a leaf spring seat for connecting a vehicle axle, which has a simple and compact structure, realizes stable load-bearing and reduces welding stress, improves the service life of the vehicle, and avoids welding stress concentration caused by welding the traditional upper and lower leaf spring seats on the vehicle axle.

[0006] To achieve the above purpose, the leaf spring seat for connecting the vehicle axle comprises an upper leaf spring seat and a lower leaf spring seat;

[0007] The upper leaf spring seat and the lower leaf spring seat are provided with through holes for straight or U-shaped bolts to pass through;

[0008] A pair of limiting ribs are provided on the side of the upper leaf spring seat and the lower leaf spring seat facing the axle. The pair of limiting ribs are longitudinally located on both sides of the axle. Each limiting rib is transversely arranged and has a plurality of positioning holes. The screw plug can be pressed against the axle after being threadedly connected with the positioning hole.

[0009] The vertical plates are a pair and are arranged longitudinally, and each vertical plate is fixed between the upper leaf spring seat and the lower leaf spring seat.

[0010] Furthermore, the vertical plate is welded and connected to the middle parts of the upper leaf spring seat and the lower leaf spring seat.

[0011] Furthermore, there are two positioning holes on the limiting rib plate, which are arranged transversely symmetrically with respect to the center of the limiting rib plate.

[0012] Furthermore, the limiting rib plate is an isosceles trapezoidal structure, with the long end facing the axle.

[0013] Furthermore, the lower end of the upper leaf spring seat and the upper end of the lower leaf spring seat are both provided with a plurality of grooves arranged side by side in a transverse manner;

[0014] An elastic body is arranged in each groove.

[0015] Furthermore, the upper leaf spring seat and the lower leaf spring seat face the side of the axle and match the outer contour of the axle.

[0016] Compared with the prior art, the leaf spring seat for connecting the vehicle axle not only realizes the fixed connection between the C-beam and the vehicle axle, but also the upper leaf spring seat and the lower leaf spring seat are mutually connected through the vertical plate, and a plurality of screw plugs are pressed on the vehicle axle, so as to realize stable load bearing and reduce welding stress, and improve the service life of the vehicle, and avoid the welding stress concentration caused by only welding the upper and lower leaf spring seats on the vehicle axle in the traditional way;

[0017] When the upper leaf spring seat and the lower leaf spring seat are pressed against the axle, the elastomer contacts the axle. On the one hand, when the straight or U-shaped bolts pass through the upper leaf spring seat, the lower leaf spring seat, and the C-beam, they can be pre-tightened by the elastomer to avoid loosening of the nuts on the straight or U-shaped bolts and improve the locking and fixing effect. On the other hand, when the vertical plate is welded between the upper leaf spring seat and the lower leaf spring seat, part of the welding stress can be eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the utility model being assembled on a vehicle axle and a C-beam;

[0019] Figure 2 It is a schematic diagram of the utility model;

[0020] Figure 3 This is the front view of the utility model (with straight / U-shaped bolts added);

[0021] Figure 4 This is a schematic diagram of the assembly of the elastic body in the utility model;

[0022] Figure 5 This is a schematic diagram of the traditional leaf spring seat assembly;

[0023] In the figure: 11, C-beam, 12, axle;

[0024] 20. leaf spring seat body, 21. upper leaf spring seat, 22. lower leaf spring seat, 23. limiting rib plate, 24. positioning hole, 25. groove, 26. elastic body;

[0025] 30. Vertical board. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the leaf spring seat for connecting the vehicle axle includes:

[0028] Upper leaf spring seat 21, lower leaf spring seat 22;

[0029] The upper leaf spring seat 21 and the lower leaf spring seat 22 are provided with through holes for straight or U-shaped bolts to pass through;

[0030] A pair of limiting ribs 23 are provided on the side of the upper leaf spring seat 21 and the lower leaf spring seat 22 facing the axle 12. The pair of limiting ribs 23 are longitudinally located on both sides of the axle 12. Each limiting rib 23 is arranged transversely and has a plurality of positioning holes 24. After the screw plug is threadedly connected with the positioning hole 24, it can be pressed on the axle 12.

[0031] A pair of vertical plates 30 are arranged longitudinally, and each vertical plate 30 is welded and fixed between the upper leaf spring seat 21 and the lower leaf spring seat 22;

[0032] Specifically, the upper leaf spring seat 21 and the lower leaf spring seat 22 form a leaf spring seat body 20 and are located at the upper and lower sides of the axle 12;

[0033] The limiting rib plate 23 can limit the axle 12 to prevent the upper leaf spring seat 21 and the lower leaf spring seat 22 from longitudinally deviating when positioning the axle 12. Preferably, the limiting rib plate 23 on the upper leaf spring seat 21 and the limiting rib plate 23 on the lower leaf spring seat 22 are both integrated structures, and the size of the leaf spring seat body 20 is different according to the size of the axle 12.

[0034] Preferably, there are two positioning holes 24 on the limiting rib plate 23, and they are arranged transversely symmetrically with respect to the center of the limiting rib plate 23;

[0035] When assembling the leaf spring seat for connecting the vehicle axle, first connect the upper leaf spring seat 21 to the vehicle axle 12 by welding. The welding point is the contact point between the limiting rib plate 23 and the vehicle axle 12, and the length of the weld exceeds the screw plugs on both sides;

[0036] The straight or U-shaped bolts pass through the upper leaf spring seat 21, the lower leaf spring seat 22, and the C-shaped beam 11 to fix the C-shaped beam 11 to the axle 12. As explained above, the lower leaf spring seat 22 is not welded to the axle 12, but is fixedly connected to the upper leaf spring seat 21 through the vertical plate 30; and a plurality of screw plugs are threaded with the positioning holes 24 and then pressed against the axle 12;

[0037] The leaf spring seat not only realizes the fixed connection between the C-beam 11 and the axle 12, but also the upper leaf spring seat 21 and the lower leaf spring seat 22 are connected to each other through the vertical plate 30, and a plurality of screw plugs are pressed on the axle 12 to realize load bearing and reduce welding stress, thereby increasing the service life of the vehicle, and avoiding the welding stress concentration caused by only welding the upper and lower leaf spring seats 22 to the axle 12 in the traditional way.

[0038] In the preferred embodiment, the vertical plate 30 is welded and connected to the middle of the upper leaf spring seat 21 and the lower leaf spring seat 22;

[0039] Specifically, the size of the vertical plate 30 is not too large, and the vertical plate 30 is welded between the upper leaf spring seat 21 and the lower leaf spring seat 22 to prevent the lower leaf spring seat 22 from being welded to the axle 12;

[0040] In the preferred embodiment, the limiting rib plate 23 is an isosceles trapezoidal structure, and the long end faces the axle 12;

[0041] Specifically, the limiting rib plate 23 is an isosceles trapezoidal structure, and the long end limits the axle 12 to increase the contact surface. At this time, a pair of positioning holes 24 are installed at the long end side of the limiting rib plate 23;

[0042] The long end of the limiting rib plate 23 faces the axle 12 , and can effectively wrap and limit the axle 12 .

[0043] like Figure 4 As shown, in the preferred embodiment, the lower end of the upper leaf spring seat 21 and the upper end of the lower leaf spring seat 22 are both provided with a plurality of grooves 25 arranged side by side in a transverse manner;

[0044] Each groove 25 is provided with an elastic body 26;

[0045] Specifically, the elastic body 26 has a certain elasticity, but its elasticity is not too large;

[0046] When the leaf spring seat is assembled by an assembly tool, the upper leaf spring seat 21 and the lower leaf spring seat 22 are respectively pressed and contacted with the axle 12. At this time, the elastic body 26 is in contact with the axle 12. On the one hand, when the straight or U-shaped bolts pass through the upper leaf spring seat 21, the lower leaf spring seat 22, and the C-shaped beam 11, they can be pre-tightened by the elastic body 26 to avoid loosening of the nuts on the straight or U-shaped bolts, thereby improving the locking and fixing effect. On the other hand, when the vertical plate 30 is welded between the upper leaf spring seat 21 and the lower leaf spring seat 22, part of the welding stress can be eliminated.

[0047] Furthermore, the upper leaf spring seat 21 and the lower leaf spring seat 22 face one side of the axle 12 and match the outer contour of the axle 12;

[0048] When the leaf spring seat for connecting the vehicle axle is used, the vehicle axle 12 and the C-shaped beam 11 are first positioned by the tooling, and the upper leaf spring seat 21 and the lower leaf spring seat 22 are placed on the upper and lower sides of the vehicle axle 12 respectively, and the corresponding limiting ribs 23 are in contact with the vehicle axle 12;

[0049] First, the C-beam 11 and the axle 12 can be fixed by passing a straight or U-shaped bolt through the upper leaf spring seat 21, the lower leaf spring seat 22, and the C-beam 11. At this time, the elastic body 26 at the upper leaf spring seat 21 and the lower leaf spring seat 22 is squeezed, thereby improving the locking and fixing effect of the straight or U-shaped bolt;

[0050] A welding device is then used to weld the contact position between the limiting rib plate 23 on the upper leaf spring seat 21 and the axle 12 as a welding line, and the lateral length of the weld exceeds the distance between the positioning holes 24 on both sides of the lateral direction. A plurality of screw plugs are threaded with the positioning holes 24 and then pressed against the axle 12;

[0051] Finally, the vertical plate 30 is placed in the middle of the upper leaf spring seat 21 and the lower leaf spring seat 22, and they are welded together by a welding device.

[0052] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

Claims

1. Leaf spring seat for axle connection, including: An upper leaf spring seat (21) and a lower leaf spring seat (22); The upper leaf spring seat (21) and the lower leaf spring seat (22) are provided with through holes for straight or U-shaped bolts to pass through; It is characterized in that A pair of limiting ribs (23) are provided on the side of the upper leaf spring seat (21) and the lower leaf spring seat (22) facing the axle (12). The pair of limiting ribs (23) are longitudinally located on both sides of the axle (12). Each limiting rib (23) is arranged transversely and is provided with a plurality of positioning holes (24). After the screw plug is threadedly connected to the positioning hole (24), it can be pressed against the axle (12). The vertical plates (30) are a pair and are arranged longitudinally, and each vertical plate (30) is fixed between the upper leaf spring seat (21) and the lower leaf spring seat (22).

2. The leaf spring seat for axle connection according to claim 1, characterized in that: The vertical plate (30) is welded and connected to the middle of the upper leaf spring seat (21) and the lower leaf spring seat (22).

3. The leaf spring seat for axle connection according to claim 1, characterized in that: There are two positioning holes (24) on the limiting rib plate (23), which are arranged symmetrically in the transverse direction with respect to the center of the limiting rib plate (23).

4. The leaf spring seat for axle connection according to any one of claims 1 to 3, characterized in that: The limiting rib plate (23) is an isosceles trapezoidal structure, with the long end facing the axle (12).

5. The leaf spring seat for axle connection according to claim 4, characterized in that: The lower end of the upper leaf spring seat (21) and the upper end of the lower leaf spring seat (22) are both provided with a plurality of grooves (25) arranged side by side in a transverse manner; An elastic body (26) is arranged in each groove (25).

6. The leaf spring seat for axle connection according to claim 4, characterized in that: The upper leaf spring seat (21) and the lower leaf spring seat (22) face one side of the axle (12) and match the outer contour of the axle (12).

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