New energy vehicle rear-drive support extrusion thread replacement steel part nut

Abstract

The invention provides a new energy vehicle rear-drive support extrusion thread replacement steel part nut which comprises a steel part nut body, a plurality of steel part nut supporting claws are integrally connected to the steel part nut body, and nut reinforcing protrusions and nut thickening sleeves are integrally connected to the joints of the steel part nut body and the steel part nut supporting claws. The steel nut body comprises a steel nut base material, the middle of the steel nut base material is wrapped with a nut base material reinforcing plate, a light filling cavity is formed in the steel nut base material, and the light filling cavity is filled with light honeycomb ceramic reinforcing columns and non-Newtonian fluid buffering colloid. A three-layer structure is adopted, a high-manganese, high-titanium, high-iron and high-chromium aluminum alloy is wrapped between the steel alloy nuts to form an integral structure, the strength and rigidity of the steel nut are improved, lightweight design is adopted in the aluminum alloy, honeycomb ceramics and non-Newtonian fluid colloid are filled in the aluminum alloy, the impact resistance and vibration reduction effects of the steel nut are improved, the surface of the steel nut is wrapped with carbon fibers, and the service life of the steel nut is prolonged. The wear resistance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to a nut for replacing a steel part by extruding a thread on a rear-wheel drive bracket of a new energy vehicle. Background Art

[0002] With the development of new energy vehicles, the number of vehicle components is increasing, and requirements for NVH (Noise, Vibration, Harshness) performance and layout space are also becoming increasingly stringent. The compressor, as a crucial component for the proper functioning of the vehicle, plays a crucial role. Typically, the compressor is installed within the vehicle's motor compartment, integrated with the electric drive assembly, using a suitable compressor bracket. Since the compressor or motor generates certain noise and vibration during operation, the design and structure of the compressor bracket play a significant role in securing the compressor and electric drive assembly and reducing vibration.

[0003] Different compressor powertrains and layouts influence the design and development of mounting brackets, requiring them to meet specific strength requirements. Automotive engine rear-wheel drive brackets don't directly bear weight; their primary function is to position and connect the components, often requiring the use of rear-wheel drive bracket nuts for securement.

[0004] Conventional rear-wheel drive bracket nuts are typically not integrated with aluminum-steel components. Instead, they are suspended from the side of the component and connected via bolts. However, embedding the nut directly into the component not only maintains the component's performance but also significantly improves its stability and rigidity. However, using aluminum-steel as the nut material often results in a decrease in nut strength, while using a fully steel nut increases the weight of the rear-wheel drive bracket. Therefore, lightweight steel nut design is crucial for improving the secure and rigid installation of the rear-wheel drive bracket. Summary of the Invention

[0005] In response to the shortcomings of the above-mentioned existing technologies, the present invention mainly aims to provide an extruded thread replacement steel nut for the rear-wheel drive bracket of a new energy vehicle. The steel nut adopts a three-layer structure, and high-manganese, high-titanium, high-iron, and high-chromium aluminum alloy is wrapped between the steel alloy nuts to form an integral structure, which greatly improves the strength and stiffness of the steel nut. A lightweight design is adopted inside the aluminum alloy and honeycomb ceramics and non-Newtonian fluid colloids are filled, which is beneficial to improving the impact resistance and vibration reduction effects of the steel nut. Carbon fiber is wrapped on the surface of the steel nut, which significantly improves its wear resistance and has a good overall use effect.

[0006] To achieve the purpose of the present invention, the technical solution adopted is: A new energy vehicle rear drive bracket extruded thread replacement steel nut includes a steel nut body, a plurality of steel nut support claws are integrally connected to the steel nut body, and a nut strengthening protrusion and a nut thickening sleeve are integrally connected at the connection between the steel nut body and the steel nut support claws.

[0007] Preferably, the steel nut body includes a steel nut substrate, the middle part of the steel nut substrate is wrapped with a nut substrate reinforcement plate, the outer surface of the steel nut substrate is wrapped with a nut carbon fiber protective film, and a plurality of lightweight filling cavities are opened inside the steel nut substrate, and the lightweight filling cavities are filled with lightweight honeycomb ceramic reinforcement columns and non-Newtonian fluid buffer colloid.

[0008] Preferably, the nut substrate reinforcing plate comprises the following components in weight percentage: Ge 0.1-0.8%, Mn 1.8-6.9%, Mo 0.02-0.07%, Nd 0.02-0.06%, Y 0.04-0.09%, Sc 0.01-0.04%, La 0.02-0.08%, Cu 0.1-0.4%, Zn 0.1-0.3%, Cr 0.3-0.6%, Ti 2.1-4.7%, Fe0.3-1.1%, Ru 0.01-0.03%, W 0.3-0.8%, Sr 0.02-0.06%, Ce 0.01-0.03%, Ni0.2-0.7%, Li 0.1-0.4%, graphene 0.3-1.2%, aluminum alloy inoculant 1.1-1.6%, and the balance is Al.

[0009] Preferably, the non-Newtonian fluid buffer colloid includes the following components in weight percentage: carbon fiber modified ceramic slurry 40-60%, nano ferromagnetic matrix modified gelatin 10-30%, chitosan quaternary ammonium salt modified concentrated latex 5-15%, polyacrylamide resin liquid 5-10%, Fe(OH)3 colloid 5-30%, and polydopamine modified celluloid glue 5-15%.

[0010] Preferably, the side of the nut thickened sleeve is integrally connected with a thickened sleeve support rib, and the peripheral side of the steel nut body and the connection between the steel nut body and the steel nut support claw are integrally provided with a support claw transition step.

[0011] Preferably, a step edge reinforcement rib is integrally provided at the connection between the support claw transition step and the steel nut body, and the steel nut body extends to the support claw transition step through the step edge reinforcement rib.

[0012] Preferably, a steel nut mounting through hole is provided through the middle of the steel nut body, a support claw mounting through hole is provided through the steel nut support claw, and a thickened sleeve mounting through hole is provided through the middle of the nut thickened sleeve.

[0013] Preferably, the aluminum alloy inoculant comprises the following components in weight percentage: Ti 1.1-2.6%, Sc 2.2-3.7%, Ce 1.8-3.5%, Fe 3.5-7.4%, carbon nanotubes 2.1-4.7%, and the balance is Al.

[0014] Preferably, the lightweight honeycomb ceramic reinforcement column includes the following components in weight percentage: 20.2-34.8% alumina, 15.6-24.6% zirconium oxide, 13.2-23.7% silicon nitride, 7.5-18.3% zirconium diboride, 4.5-9.3% sintering aid, 3.6-7.5% plasticizer, 3.3-5.6% binder, 2.1-4.2% dispersant, 2.0-5.2% reinforcing agent, 1.5-2.7% graphene, and 10.5-25.5% solvent.

[0015] Preferably, the raw materials of the reinforcing agent include rare earth modified nitride, rare earth modified oxide and ferrosoferric oxide, and the mass ratio of the rare earth nitride, rare earth oxide and ferrosoferric oxide is 3-5:1:1-3.

[0016] Preferably, a plurality of reinforcing plate through holes with a hole diameter of 0.3-1.5 cm are provided through the nut substrate reinforcing plate, and the wall thickness between the reinforcing plate through holes is set to 0.5-1.2 cm.

[0017] The present invention provides a new energy vehicle rear drive bracket extruded thread replacement steel nut, which has the following advantages: The steel nut of the present invention adopts a three-layer structure, and high-manganese, high-titanium, high-iron, and high-chromium aluminum alloy is wrapped between the steel alloy nuts to form an integral structure, which greatly improves the strength and stiffness of the steel nut. A lightweight design is adopted inside the aluminum alloy and honeycomb ceramics and non-Newtonian fluid colloid are filled, which is beneficial to improving the impact resistance and vibration reduction effect of the steel nut. Carbon fiber is wrapped on the surface of the steel nut, which significantly improves its wear resistance, and the overall use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the new energy vehicle rear drive bracket extruded thread replacing the steel nut of the present invention.

[0019] Figure 2 It is a front structural schematic diagram of the new energy vehicle rear drive bracket extruded thread replacing the steel nut of the present invention.

[0020] Figure 3 It is a side view structural schematic diagram of the new energy vehicle rear drive bracket extruded thread replacing the steel nut of the present invention.

[0021] Figure 4 It is a top view structural schematic diagram of the extruded thread replacing the steel nut of the rear drive bracket of a new energy vehicle according to the present invention.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the steel nut body part of the extruded thread replacing the steel nut of the rear drive bracket of a new energy vehicle according to the present invention.

[0023] In the figure: 1. Steel nut body; 2. Steel nut supporting claw; 3. Nut reinforcement protrusion; 4. Nut thickened sleeve; 5. Thickened sleeve support rib; 6. Support claw transition step; 7. Step edge reinforcement rib; 8. Steel nut mounting through hole; 9. Support claw mounting through hole; 10. Steel nut base material; 11. Nut base material reinforcement plate; 12. Nut carbon fiber protective film; 13. Lightweight filling cavity; 14. Lightweight honeycomb ceramic reinforcement column; 15. Non-Newtonian fluid buffer colloid. DETAILED DESCRIPTION

[0024] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example 1

[0027] like Figure 1-4 As shown, a new energy vehicle rear drive bracket extruded thread replacement steel nut includes a steel nut body 1, on which a plurality of steel nut support claws 2 are integrally connected, and the connection between the steel nut body 1 and the steel nut support claws 2 is integrally connected with a nut strengthening protrusion 3 and a nut thickening sleeve 4.

[0028] like Figure 1-4As shown, a new energy vehicle rear drive bracket extruded thread replaces the steel nut, the side of the nut thickening sleeve 4 is integrated with a thickening sleeve support rib 5, the peripheral side of the steel nut body 1 and the connection between the steel nut body 1 and the steel nut support claw 2 are integrated with a support claw transition step 6; the connection between the support claw transition step 6 and the steel nut body 1 is integrated with a step edge reinforcement rib 7, and the steel nut body 1 transitions to the support claw transition step 6 through the step edge reinforcement rib 7; the middle part of the steel nut body 1 is penetrated by a steel nut mounting through hole 8, the steel nut support claw 2 is penetrated by a support claw mounting through hole 9, and the middle part of the nut thickening sleeve 4 is penetrated by a thickening sleeve mounting through hole.

[0029] like Figure 5 As shown, a new energy vehicle rear drive bracket extruded thread replaces the steel nut, the steel nut body 1 includes a steel nut substrate 10, the middle part of the steel nut substrate 10 is wrapped with a nut substrate reinforcement plate 11, the outer surface of the steel nut substrate 10 is wrapped with a nut carbon fiber protective film 12, and a plurality of lightweight filling cavities 13 are opened inside the steel nut substrate 10, and the lightweight filling cavities 13 are filled with lightweight honeycomb ceramic reinforcement columns 14 and non-Newtonian fluid buffer colloid 15.

[0030] Furthermore, the nut substrate reinforcing plate 11 includes the following components in weight percentage: Ge 0.8%, Mn 6.9%, Mo 0.02%, Nd 0.06%, Y 0.04%, Sc 0.01%, La 0.08%, Cu 0.1%, Zn 0.3%, Cr 0.3%, Ti 4.7%, Fe 0.3%, Ru 0.03%, W 0.3%, Sr 0.06%, Ce 0.01%, Ni0.7%, Li 0.1%, graphene 1.2%, aluminum alloy inoculant 1.1%, and the balance is Al.

[0031] Furthermore, the non-Newtonian fluid buffer colloid 15 includes the following components in weight percentage: 40% carbon fiber modified ceramic slurry, 30% nano ferromagnetic matrix modified gelatin, 15% chitosan quaternary ammonium salt modified concentrated latex, 5% polyacrylamide resin liquid, 5% Fe(OH)3 colloid, and 5% polydopamine modified celluloid glue.

[0032] Furthermore, the aluminum alloy inoculant includes the following components in weight percentage: Ti 2.6%, Sc 2.2%, Ce 3.5%, Fe 3.5%, carbon nanotubes 4.7%, and the balance is Al.

[0033] Furthermore, the lightweight honeycomb ceramic reinforcement column 14 includes the following components in weight percentage: 20.2% alumina, 15.6% zirconium oxide, 13.2% silicon nitride, 14.3% zirconium diboride, 4.8% sintering aid, 3.9% plasticizer, 3.8% binder, 2.9% dispersant, 2.9% reinforcing agent, 1.8% graphene, and 16.6% solvent.

[0034] Furthermore, the raw materials of the reinforcing agent include rare earth modified nitride, rare earth modified oxide and ferrosoferric oxide, and the mass ratio of the rare earth nitride, rare earth oxide and ferrosoferric oxide is 5:1:1.

[0035] Furthermore, a plurality of reinforcing plate through holes with a hole diameter of 0.5 cm are provided through the nut substrate reinforcing plate 11, and the wall thickness between the reinforcing plate through holes is set to 0.8 cm.

[0036] When in use, the steel nut is installed on the rear drive bracket of the new energy vehicle through the steel nut installation through hole 8 on the steel nut body 1, the support claw installation through hole 9 on the steel nut support claw 2, and the thickened sleeve installation through hole in the middle of the nut thickened sleeve 4; A nut substrate reinforcement plate 11 made of high manganese, high titanium, high iron and high chromium aluminum alloy is wrapped in the middle of a steel nut substrate 10 made of a steel alloy. The three-layer structure improves the rigidity of the steel nut. The nut carbon fiber protective film 12 wrapped on the outer surface of the steel nut substrate 10 is beneficial to improving the wear resistance of the steel nut. The lightweight filling cavity 13 inside the steel nut substrate 10 is filled with a lightweight honeycomb ceramic reinforcement column 14 and a non-Newtonian fluid buffer colloid 15, which has an excellent reinforcing effect on the steel nut. Example 2

[0037] The difference between this embodiment and embodiment 1 is that: A new energy vehicle rear drive bracket extruded thread replacement steel nut, the nut substrate reinforcement plate 11 includes the following components in weight percentage: Ge 0.4%, Mn 5.3%, Mo 0.04%, Nd 0.04%, Y 0.05%, Sc 0.03%, La 0.05%, Cu 0.2%, Zn 0.2%, Cr 0.4%, Ti 3.0%, Fe 0.6%, Ru 0.02%, W 0.5%, Sr 0.04%, Ce 0.02%, Ni 0.5%, Li 0.3%, graphene 0.7%, aluminum alloy inoculant 1.3%, and the balance is Al.

[0038] Furthermore, the non-Newtonian fluid buffer colloid 15 includes the following components in weight percentage: 45% carbon fiber modified ceramic slurry, 20% nano ferromagnetic matrix modified gelatin, 10% chitosan quaternary ammonium salt modified concentrated latex, 7% polyacrylamide resin liquid, 8% Fe(OH)3 colloid, and 10% polydopamine modified celluloid glue.

[0039] Furthermore, the aluminum alloy inoculant includes the following components in weight percentage: Ti 1.8%, Sc 3.1%, Ce 2.4%, Fe 5.3%, carbon nanotubes 3.4%, and the balance is Al.

[0040] Furthermore, the lightweight honeycomb ceramic reinforcement column 14 includes the following components in weight percentage: 22.3% alumina, 16.4% zirconium oxide, 14.2% silicon nitride, 8.8% zirconium diboride, 4.9% sintering aid, 4.2% plasticizer, 3.8% binder, 2.6% dispersant, 2.4% reinforcing agent, 1.8% graphene, and 18.6% solvent.

[0041] Furthermore, the raw materials of the reinforcing agent include rare earth modified nitride, rare earth modified oxide and ferrosoferric oxide, and the mass ratio of the rare earth nitride, rare earth oxide and ferrosoferric oxide is 4:1:2.

[0042] Furthermore, a plurality of reinforcing plate through holes with a hole diameter of 0.7 cm are provided through the nut substrate reinforcing plate 11, and the wall thickness between the reinforcing plate through holes is set to 0.9 cm. Example 3

[0043] The difference between this embodiment and embodiments 1 and 2 is that: A new energy vehicle rear drive bracket extruded thread replacement steel nut, the nut substrate reinforcement plate 11 includes the following components in weight percentage: Ge 0.1%, Mn 1.8%, Mo 0.02%, Nd 0.02-0.06%, Y 0.04%, Sc 0.01%, La 0.02%, Cu 0.1%, Zn 0.1%, Cr 0.3%, Ti 2.1%, Fe 0.3%, Ru0.01%, W 0.3%, Sr 0.02%, Ce 0.01%, Ni 0.2%, Li 0.1%, graphene 0.3%, aluminum alloy inoculant 1.1%, and the balance is Al.

[0044] Furthermore, the non-Newtonian fluid buffer colloid 15 includes the following components in weight percentage: 45% carbon fiber modified ceramic slurry, 10% nano ferromagnetic matrix modified gelatin, 5% chitosan quaternary ammonium salt modified concentrated latex, 5% polyacrylamide resin liquid, 30% Fe(OH)3 colloid, and 5% polydopamine modified celluloid glue.

[0045] Furthermore, the aluminum alloy inoculant includes the following components in weight percentage: Ti 1.1%, Sc 2.2%, Ce 1.8%, Fe 3.5%, carbon nanotubes 2.1%, and the balance is Al.

[0046] Furthermore, the lightweight honeycomb ceramic reinforcement column 14 includes the following components in weight percentage: 27.1% alumina, 15.6% zirconium oxide, 13.2% silicon nitride, 7.5% zirconium diboride, 4.5% sintering aid, 3.6% plasticizer, 3.3% binder, 2.1% dispersant, 2.0% reinforcing agent, 1.5% graphene, and 19.6% solvent.

[0047] Furthermore, the raw materials of the reinforcing agent include rare earth modified nitride, rare earth modified oxide and ferrosoferric oxide, and the mass ratio of the rare earth nitride, rare earth oxide and ferrosoferric oxide is 3:1:1.

[0048] Furthermore, a plurality of reinforcing plate through holes with a hole diameter of 1.5 cm are provided through the nut substrate reinforcing plate 11, and the wall thickness between the reinforcing plate through holes is set to 1.2 cm. Example 4

[0049] The difference between this embodiment and embodiments 1, 2, and 3 is that: A new energy vehicle rear drive bracket extruded thread replacement steel nut, the nut substrate reinforcement plate 11 includes the following components in weight percentage: Ge 0.8%, Mn 6.9%, Mo 0.07%, Nd 0.06%, Y 0.09%, Sc0.04%, La 0.08%, Cu 0.4%, Zn 0.3%, Cr 0.6%, Ti 4.7%, Fe 1.1%, Ru 0.03%, W 0.8%, Sr 0.06%, Ce 0.03%, Ni 0.7%, Li 0.4%, graphene 1.2%, aluminum alloy inoculant 1.6%, and the balance is Al.

[0050] Furthermore, the non-Newtonian fluid buffer colloid 15 includes the following components in weight percentage: 50% carbon fiber modified ceramic slurry, 10% nano ferromagnetic matrix modified gelatin, 15% chitosan quaternary ammonium salt modified concentrated latex, 5% polyacrylamide resin liquid, 5% Fe(OH)3 colloid, and 15% polydopamine modified celluloid glue.

[0051] Furthermore, the aluminum alloy inoculant includes the following components in weight percentage: Ti 2.6%, Sc 3.7%, Ce 3.5%, Fe 7.4%, carbon nanotubes 4.7%, and the balance is Al.

[0052] Furthermore, the lightweight honeycomb ceramic reinforcement column 14 includes the following components in weight percentage: 20.2% alumina, 15.6% zirconium oxide, 23.7% silicon nitride, 7.5% zirconium diboride, 4.5% sintering aid, 3.6% plasticizer, 3.3% binder, 2.1% dispersant, 2.0% reinforcing agent, 1.5% graphene, and 16.0% solvent.

[0053] Furthermore, the raw materials of the reinforcing agent include rare earth modified nitride, rare earth modified oxide and ferrosoferric oxide, and the mass ratio of the rare earth nitride, rare earth oxide and ferrosoferric oxide is 5:1:3.

[0054] Furthermore, a plurality of reinforcing plate through holes with a hole diameter of 0.3 cm are provided through the nut substrate reinforcing plate 11, and the wall thickness between the reinforcing plate through holes is set to 0.5 cm.

[0055] In the present invention, the steel nut adopts a three-layer structure, and high-manganese, high-titanium, high-iron, and high-chromium aluminum alloy is wrapped between the steel alloy nuts to form an integral structure, which greatly improves the strength and stiffness of the steel nut. A lightweight design is adopted inside the aluminum alloy and filled with honeycomb ceramics and non-Newtonian fluid colloid, which is beneficial to improving the impact resistance and vibration reduction effect of the steel nut. Carbon fiber is wrapped on the surface of the steel nut, which significantly improves its wear resistance and has a good overall use effect.

[0056] The technical solutions disclosed in the embodiments of the present invention are introduced in detail above. Specific embodiments are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A new energy vehicle rear drive bracket extruded thread replacement steel nut, characterized by: The invention comprises a steel nut body (1), a plurality of steel nut supporting claws (2) are integrally connected to the steel nut body (1), and a nut strengthening protrusion (3) and a nut thickening sleeve (4) are integrally connected to the connection between the steel nut body (1) and the steel nut supporting claws (2); The steel nut body (1) includes a steel nut substrate (10), a nut substrate reinforcement plate (11) is wrapped around the middle of the steel nut substrate (10), a nut carbon fiber protective film (12) is wrapped around the outer surface of the steel nut substrate (10), a plurality of lightweight filling cavities (13) are opened inside the steel nut substrate (10), and the lightweight filling cavities (13) are filled with lightweight honeycomb ceramic reinforcement columns (14) and non-Newtonian fluid buffer colloid (15); The nut substrate reinforcement plate (11) comprises the following components in weight percentage: Ge 0.1-0.8%, Mn 1.8-6.9%, Mo 0.02-0.07%, Nd 0.02-0.06%, Y 0.04-0.09%, Sc 0.01-0.04%, La0.02-0.08%, Cu 0.1-0.4%, Zn 0.1-0.3%, Cr 0.3-0.6%, Ti 2.1-4.7%, Fe 0.3-1.1%, Ru 0.01-0.03%, W 0.3-0.8%, Sr 0.02-0.06%, Ce 0.01-0.03%, Ni 0.2-0.7%, Li 0.1-0.4%, graphene 0.3-1.2%, aluminum alloy inoculant 1.1-1.6%, and the balance is Al.

2. The extruded threaded replacement steel nut for the rear drive bracket of a new energy vehicle according to claim 1 is characterized by: The non-Newtonian fluid buffer colloid (15) comprises the following components in weight percentage: carbon fiber modified ceramic slurry 40-60%, nano ferromagnetic matrix modified gelatin 10-30%, chitosan quaternary ammonium salt modified concentrated latex 5-15%, polyacrylamide resin liquid 5-10%, Fe(OH)3 colloid 5-30%, polydopamine modified celluloid glue 5-15%.

3. The extruded threaded replacement steel nut for the rear drive bracket of a new energy vehicle according to claim 1 is characterized by: The side of the nut thickening sleeve (4) is integrally connected with a thickening sleeve support rib (5), and the peripheral side of the steel nut body (1) and the connection between the steel nut body (1) and the steel nut support claw (2) are integrally provided with a support claw transition step (6).

4. The extruded threaded replacement steel nut for the rear drive bracket of a new energy vehicle according to claim 3 is characterized by: The connection between the support claw transition step (6) and the steel nut body (1) is integrally provided with a step edge reinforcement rib (7), and the steel nut body (1) transitionally extends to the support claw transition step (6) through the step edge reinforcement rib (7).

5. The extruded threaded replacement steel nut for the rear-wheel drive bracket of a new energy vehicle according to claim 3 is characterized by: A steel nut mounting through hole (8) is provided through the middle of the steel nut body (1), a support claw mounting through hole (9) is provided through the steel nut support claw (2), and a thickened sleeve mounting through hole is provided through the middle of the nut thickened sleeve (4).

6. The extruded threaded replacement steel nut for the rear drive bracket of a new energy vehicle according to claim 1 is characterized by: The aluminum alloy inoculant comprises the following components in weight percentage: Ti 1.1-2.6%, Sc 2.2-3.7%, Ce 1.8-3.5%, Fe 3.5-7.4%, carbon nanotubes 2.1-4.7%, and the balance is Al.

7. The extruded threaded replacement steel nut for the rear drive bracket of a new energy vehicle according to claim 1 is characterized by: The lightweight honeycomb ceramic reinforcement column (14) comprises the following components in percentage by weight: 20.2-34.8% alumina, 15.6-24.6% zirconium oxide, 13.2-23.7% silicon nitride, 7.5-18.3% zirconium diboride, 4.5-9.3% sintering aid, 3.6-7.5% plasticizer, 3.3-5.6% binder, 2.1-4.2% dispersant, 2.0-5.2% reinforcing agent, 1.5-2.7% graphene, and 10.5-25.5% solvent.

8. The extruded threaded replacement steel nut for the rear-wheel drive bracket of a new energy vehicle according to claim 7 is characterized by: The raw materials of the reinforcing agent include rare earth modified nitride, rare earth modified oxide and ferrosoferric oxide, and the mass ratio of the rare earth nitride, rare earth oxide and ferrosoferric oxide is 3-5:1:1-3.

9. The extruded threaded replacement steel nut for the rear drive bracket of a new energy vehicle according to claim 1 is characterized by: The nut substrate reinforcing plate (11) is provided with a plurality of reinforcing plate through holes with a hole diameter of 0.3-1.5 cm, and the wall thickness between the reinforcing plate through holes is set to 0.5-1.2 cm.

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