Longitudinal arm mounting frame of new energy automobile

Abstract

The utility model relates to the technical field of new energy automobiles, in particular to a trailing arm mounting frame of a new energy automobile, which comprises a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are fixedly connected with two sides of the bottom plate, the top ends of the first side plate and the second side plate are fixedly connected with flanges, and mounting bulges are fixedly arranged on the surface of the bottom plate. The two ends of the first side plate and the two ends of the second side plate are each provided with a sinking table and an inner auxiliary ring which are fixedly connected, welding parts and welding baffles are fixedly arranged in the middles of the outer sides of the first side plate and the second side plate, and inner sinking grooves are formed in the surfaces of the sinking tables. The effect of conveniently welding and fixing the whole mounting frame and the external rear axle housing assembly shaft part is achieved by matching the mounting bulge with the welding part, and the effect of shielding and protecting the position of the welding part is achieved by welding the baffle plate. And the welding position is shielded, so that cracking of the welding position caused by external force is avoided, and the mounting stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a new energy vehicle's longitudinal arm mounting bracket. BACKGROUND

[0002] At present, the longitudinal arm mounting bracket is mostly made by sheet metal technology, specifically, the cut plate is stamped into U-shaped.

[0003] The existing longitudinal arm mounting bracket has a plane structure on both sides, and the parallelism of the two sides is difficult to guarantee, especially when the vehicle is turning under load, the bracket wall after deformation will produce lateral extrusion impact on the nut of the fastening bolt, resulting in loosening of the fastening bolt.

[0004] Therefore, the utility model provides a new energy vehicle's longitudinal arm mounting bracket. UTILITY MODEL CONTENTS

[0005] In view of the defects in the prior art, the utility model provides a new energy vehicle's longitudinal arm mounting bracket, which can solve the problems of:

[0006] The existing longitudinal arm mounting bracket has a plane structure on both sides, and the parallelism of the two sides is difficult to guarantee, especially when the vehicle is turning under load, the bracket wall after deformation will produce lateral extrusion impact on the nut of the fastening bolt, resulting in loosening of the fastening bolt.

[0007] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0008] A new energy vehicle's longitudinal arm mounting bracket, comprising a bottom plate and first and second side plates fixedly connected to both sides of the bottom plate, the top ends of the first and second side plates are fixedly connected with flanges, the surface of the bottom plate is fixedly provided with a mounting protrusion, the two ends of the first and second side plates are provided with fixedly connected sink tables and inner auxiliary rings, the outer sides of the first and second side plates are fixedly provided with welding portions and welding baffles at the central positions, the surface of the sink table is provided with an inner sink groove, the surface of the inner sink groove is fixedly connected with a reinforcing rib, and the longitudinal two ends of the bottom plate are fixedly connected with reinforcing protrusions and reinforcing rods.

[0009] Further, the mounting protrusion is arranged in an arc shape, and the whole is connected to the surface of the first plate in a longitudinal direction, and the two ends are fixedly connected to the inner side of the welding portion.

[0010] Further, the welding portion is arranged in an arc shape at the central position of the surface of the first and second side plates, and the edge of the welding portion is arranged in an arc shape and recessed inward.

[0011] Further, the welding baffle is arranged at the outer side of the welding portion and arranged in an arc shape.

[0012] Further, the two ends of the first side plate and the second side plate are arranged in an arc shape and outwardly protrude, the sink is arranged in a circular shape, the inner sink groove is arranged in an arc shape and inwardly recesses on the outer surface of the sink, and the inner sink groove and the surface of the sink are arranged in a slope curve transition.

[0013] Further, the surface of the sink is provided with a bolt hole at the central position.

[0014] Further, the reinforcing rib is arranged in a triangular shape and protrudes, and extends outwardly along the bolt hole on the surface of the sink to the edge of the inner sink groove.

[0015] Further, the inner auxiliary ring is arranged in a plastic spacing ring and is located on the inner surface of the sink.

[0016] Further, the reinforcing protrusion is arranged in an arc shape and transitions, is located at the longitudinal two side positions between the bottom plate and the two groups of side plates, and the reinforcing rod is longitudinally arranged along the surface of the reinforcing protrusion, and the two ends are fixedly connected to the inner sides of the two groups of side plates.

[0017] From the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The utility model discloses a mounting protrusion and a welding part are installed to achieve the effect that the whole mounting frame and the external rear axle housing assembly shaft part are conveniently welded and fixed, a welding baffle is used to achieve the effect that the welding part position is shielded and protected. The welding position is shielded, external force is avoided to cause the welding position to crack, and the mounting stability is ensured.

[0019] 2. The utility model discloses a sink, an inner sink groove and an inner auxiliary ring on the inner side of the sink are used to achieve the effect that the whole mounting frame and the external fastening bolt are stably connected, the lateral extrusion impact on the external nut is effectively avoided, the fastening bolt is prevented from loosening, a reinforcing rib is used to achieve the effect that the sink is reinforced and assisted from the external position. After the whole mounting frame and the external fastening bolt are connected, the reinforcing rib can effectively enhance the stress stability of the sink position.

[0020] 3. The utility model discloses a reinforcing protrusion to achieve the effect that the end angle connecting position between the bottom plate and the two groups of side plates is reinforced, a reinforcing rod to achieve the effect that the connection stability between the bottom plate and the two groups of side plates is enhanced, and the longitudinal strength of the whole mounting frame is ensured. DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the whole structure schematic diagram of the utility model; Figure 1 It is the structure enlarged view of A place in the utility model;

[0024] Figure 3 It is the whole structure schematic diagram of the utility model; Figure 1 It is the structure enlarged view of B place in the utility model;

[0025] Figure 4 It is the whole structure schematic diagram of the utility model; Figure 1 It is the structure enlarged view of C place in the utility model.

[0026] Reference signs:

[0027] 1, bottom plate;2, first side plate;3, second side plate;4, mounting protrusion;5, flange;6, welding baffle;7, welding portion;8, sink;9, inner auxiliary ring;10, inner sink groove;11, reinforcing rib;12, reinforcing protrusion;13, reinforcing rod. Specific implementation

[0028] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model.

[0029] Referring to Figures 1-4 As shown in the figure, a longitudinal arm mounting rack of a new energy automobile includes a bottom plate 1 and first and second side plates 2 and 3 fixedly connected on both sides of the bottom plate 1, flanges 5 fixedly connected to the top ends of the first and second side plates 2 and 3, mounting protrusions 4 fixedly arranged on the surface of the bottom plate 1, sink 8 and inner auxiliary ring 9 fixedly connected to both ends of the first and second side plates 2 and 3, welding portion 7 and welding baffle 6 fixedly arranged at the central position of the outer side of the first and second side plates 2 and 3, inner sink groove 10 arranged on the surface of the sink 8, reinforcing rib 11 fixedly connected to the surface of the inner sink groove 10, reinforcing protrusion 12 and reinforcing rod 13 fixedly connected to both longitudinal ends of the bottom plate 1.

[0030] In the embodiment of the utility model, the mounting protrusion 4 is arranged in an arc shape, and the whole is longitudinally connected to the surface of the first plate 1, and both ends are fixedly connected to the inner side of the welding portion 7. The welding portion 7 is arranged in an arc shape on the surface of the first and second side plates 2 and 3 at the central position, and the edge of the welding portion 7 is arranged in an arc shape and recessed inward. The welding baffle 6 is arranged at the outer side of the welding portion 7 and arranged in an arc shape. The mounting protrusion 4 cooperates with the welding portion 7 to achieve the effect of facilitating the welding and fixation of the whole mounting rack and the external rear axle shell assembly shaft. The welding baffle 6 achieves the effect of shielding and protecting the position of the welding portion 7.

[0031] When installing the rear axle housing assembly, the mounting protrusion 4 is fitted to the outer rear axle housing assembly shaft portion position, and after adjusting the mounting position, welding is performed between the mounting frame as a whole and the outer rear axle housing assembly at the welding portion 7 position from the outer position. Since the edge position of the welding portion 7 is arc-shaped and concave, the welding position of the mounting frame as a whole and the outer rear axle housing assembly is located at the inner side of the outer surface of the welding portion 7. After welding is completed, the welding portion 7 cooperates with the welding baffle 6 to effectively shield the welding position between the mounting frame as a whole and the outer rear axle housing assembly, avoid external force causing the welding position to crack, and ensure installation stability.

[0032] The two ends of the first side plate 2 and the second side plate 3 are arc-shaped and convex, the sink 8 is circular, the inner sink groove 10 is arc-shaped and concave on the outer surface of the sink 8, and the surface between the inner sink groove 10 and the sink 8 is slope curve transition setting, the surface of the sink 8 is centrally provided with a bolt hole, the reinforcing rib 11 is triangular and protruding, which extends outward along the bolt hole of the sink 8 surface to the edge of the inner sink groove 10, and the inner auxiliary ring 9 is a plastic spacer ring located on the inner surface of the sink 8. Through the sink 8 cooperates with the inner sink groove 10 and the inner auxiliary ring 9 on its inner side, the effect of ensuring stable connection between the mounting frame as a whole and the external tightening bolt is achieved, which can effectively avoid the lateral extrusion impact on the external nut and avoid the tightening bolt from loosening. The reinforcing rib 11 achieves the effect of reinforcing and assisting the sink 8 from the outside. After the mounting frame as a whole and the external tightening bolt are connected, the reinforcing rib 11 can effectively enhance the stress stability of the sink 8 position.

[0033] The installation precision between the mounting frame as a whole of the sink 8, the inner sink groove 10 and the reinforcing rib 11 and the external bolt ensures the clamping force of the contact surface between them and avoids torque decay.

[0034] The reinforcing protrusion 12 is arc-shaped and is located between the bottom plate 1 and the two groups of side plates on the longitudinal sides. The reinforcing rod 13 is longitudinally arranged along the surface of the reinforcing protrusion 12, and its two ends are fixedly connected to the inner sides of the two groups of side plates. The reinforcing protrusion 12 achieves the effect of reinforcing the corner connection position between the bottom plate 1 and the two groups of side plates, and the reinforcing rod 13 achieves the effect of enhancing the connection stability between the bottom plate 1 and the two groups of side plates, thereby ensuring the longitudinal strength of the mounting frame as a whole.

[0035] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A new energy vehicle's trailing arm mounting rack, characterized in that: The utility model provides a kind of double-sided welding support frame, including bottom plate (1) and its both sides fixed connection first side plate (2) and second side plate (3), the top of first side plate (2) and second side plate (3) is fixedly connected with flanging (5), the surface of bottom plate (1) is fixedly provided with mounting protrusion (4), the both ends of first side plate (2) and second side plate (3) are provided with fixedly connected sunken platform (8) and inner auxiliary ring (9), the outside of first side plate (2) and second side plate (3) is fixedly provided with welding portion (7) and welding baffle (6) in central position, the surface of sunken platform (8) is provided with inner sunken groove (10), the surface of inner sunken groove (10) is fixedly connected with reinforcing rib (11), the longitudinal both ends of bottom plate (1) are fixedly connected with reinforcing protrusion (12) and reinforcing rod (13).

2. The trailing arm mounting bracket of claim 1, wherein: The mounting protrusion (4) is arranged in an arc shape, and is longitudinally connected to the surface of the bottom plate (1).

3. The trailing arm mounting bracket of claim 1, wherein: The welding portion (7) is arranged in an arc shape in the central position of the surface of the first side plate (2) and the second side plate (3), and the edge of the welding portion (7) is arranged in an arc shape.

4. The trailing arm mounting bracket of claim 1, wherein: The welding baffle (6) is arranged outside the welding portion (7) and is arranged in an arc shape.

5. The trailing arm mounting bracket of claim 1, wherein: The both ends of the first side plate (2) and the second side plate (3) are arranged in an arc shape, the sunken platform (8) is circular, the inner sunken groove (10) is arranged in an arc shape on the outer surface of the sunken platform (8), and the surface of the inner sunken groove (10) and the sunken platform (8) is arranged in a slope curve.

6. The trailing arm mounting bracket of claim 1, wherein: The sunken platform (8) is provided with a bolt hole in the central position of the surface.

7. The new energy vehicle trailing arm mounting bracket according to claim 1, characterized in that: The reinforcing rib (11) is arranged in a triangular shape and extends outward from the bolt hole of the surface of the sunken platform (8) to the edge of the inner sunken groove (10).

8. The trailing arm mounting bracket of claim 1, wherein: The inner auxiliary ring (9) is a plastic spacer ring and is arranged on the inner surface of the sunken platform (8).

9. The trailing arm mounting bracket of claim 1, wherein: The reinforcing protrusion (12) is arranged in an arc shape and is arranged on the longitudinal both sides between the bottom plate (1) and the two side plates, and the reinforcing rod (13) is longitudinally arranged along the surface of the reinforcing protrusion (12) and is fixedly connected to the inner sides of the two side plates.

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