A suspension bushing for a powertrain of an electric vehicle includes amandrel, an outer sleeve and a rubber mainspring connected between the mandrel and the outer sleeve. The rubber main spring includes multiple main parts arranged at intervals and surrounding the outer contour of the mandrel. At least one side of each of the main parts is provided with an extending part. An end surface of the extending part and an end surfaceof each main part form a stepped structure.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
2.
LIGHT-WEIGHT LARGE-LOAD COMMERCIAL VEHICLE STABILIZER BAR SUSPENDER ASSEMBLY AND PREPARATION METHOD THEREFOR
A light-weight large-load commercial vehicle stabilizer bar suspender assembly and a preparation method therefor. The stabilizer bar suspender assembly comprises a composite material rod (2) and a reinforcement (3), wherein the reinforcement (3) is a fiber or a metal wire, and the reinforcement (3) comprises a plurality of reinforcement segments (31); a first sleeve (1) is arranged at one end of the rod (2), and a second sleeve (6) and a third sleeve (7) are arranged at the other end of the rod (2); a first bushing (4) is arranged in the first sleeve (1), a second bushing (8) is arranged in the second sleeve (6), a third bushing (9) is arranged in the third sleeve (7), and at least one fourth bushing (10) is arranged in the rod (2); when one fourth bushing (10) is provided, a reinforcement segment (31) is wound between the first bushing (4) and the fourth bushing (10), and the reinforcement segments (31) are respectively wound between the second bushing (8) and the fourth bushing (10) and between the third bushing (9) and the fourth bushing (10); and when two or more fourth bushings (10) are provided, the reinforcement segments (31) are also wound between two adjacent fourth bushings (10). The preparation method comprises injection molding or pouring molding. The stabilizer bar suspender assembly has the advantages of a light weight, a high bearing load, a high design degree of freedom, etc., and can be suitable for rods with longer lengths and more complex structures.
B29C 69/00 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor
3.
MANUFACTURING METHOD FOR AND STRUCTURE OF LIGHTWEIGHT COMPOSITE THRUST ROD
A manufacturing method for and structure of a lightweight composite thrust rod. A tool (2) comprising a central body (22) and a pressing block (23) is first disposed, and then after a strip-shaped continuous fiber reinforced thermoplastic composite material is wound around the periphery of the central body (22) multiple turns, a continuous special-shaped peripheral layer reinforcement (11) which is closed in the peripheral direction is formed by pressing by means of the pressing block (23); then the peripheral layer reinforcement (11) is filled with a long fiber reinforced thermoplastic composite material or a short fiber reinforced thermoplastic composite material by means of injection; finally, rubber metal ball hinges (13) are pressed into the two ends to form a complete thrust rod (1). The thrust rod (1) formed by the method is superior in performance and higher in strength, can bear larger tensile strength and is not easy to tear; moreover, a U-shaped edge covering structure is arranged at the edge of the peripheral layer reinforcement (11), so that the welding strength of two different materials is ensured, and the overall fatigue performance of the thrust rod (1) is also superior.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B29C 65/64 - Joining a non-plastics element to a plastics element, e.g. by force
B60G 21/04 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
4.
METHOD FOR MANUFACTURING LIGHTWEIGHT COMPONENT BASED ON CONTINUOUS FIBERS AND COMMON FIBERS, AND PRODUCT
A method for manufacturing a lightweight component based on continuous fibers and common fibers, and a product. The method comprises: by taking a thermoplastic polymer material as a matrix material, first manufacturing a continuous fiber-containing thermoplastic polymer material peripheral layer (22, 221) by winding a continuous fiber-containing reinforced thermoplastic composite material, then placing the continuous fiber-containing thermoplastic polymer material peripheral layer (22, 221) into a forming mold, and enabling the continuous fiber-containing thermoplastic polymer material peripheral layer (22, 221) to be tightly attached to the inner wall of the forming mold to form a middle cavity; filling a common fiber-containing thermoplastic polymer material into the middle cavity, and compounding the common fiber-containing thermoplastic polymer material with the thermoplastic polymer material peripheral layer to form a lightweight component. According to the method, the continuous fibers, the common fibers, and the thermoplastic polymer material are respectively formed into different parts of a periphery (22, 221) and an inner body (412) of the lightweight component, and then the two parts are compounded to manufacture the lightweight component, so that the lightweight effect is remarkable, and the comprehensive performance of the lightweight component can be greatly improved.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B29C 70/36 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
A bushing for electrical vehicle powertrain suspension and an electrical vehicle powertrain suspension system comprising the bushing for electrical vehicle powertrain suspension comprise a core shaft (1), an outer sleeve (2) and a rubber main spring (3) connecting between the core shaft (1) and the outer sleeve (2). The rubber main spring (3) comprises multiple main body portions (31) arranged at intervals surrounding the outer contour of the core shaft (1). At least one side of a main body portion (31) is provided with an extending portion (32). An end surface (4) of the extending portion (32) and an end surface (4) of the main body portion (31) form a stair-step structure. Because the extending portion extends from the rubber main body portion, stability is improved, the risk of generating high-frequency noise is basically prevented, and dynamic stiffness at high frequency is low. Moreover, the extending portion is positioned at an interval between two adjacent main body portions, does not add to the volume of the rubber main spring, has a compact structure, and is conveniently applicable to different suspension systems.
F16F 1/371 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by inserts or auxiliary extension elements, e.g. for rigidification
B60K 1/00 - Arrangement or mounting of electrical propulsion units
6.
SPLIT-TYPE COMPOSITE LIGHTWEIGHT CONNECTING ROD ASSEMBLY AND MANUFACTURING METHOD THEREFOR
Disclosed are a split-type composite lightweight connecting rod assembly and a manufacturing method therefor. The split-type composite lightweight connecting rod assembly comprises a spherical hinge (30), a rod body (20), and a joint (10), wherein the joint is made of a composite material, the rod body is made of a metal or continuous fiber reinforced composite material, the rod body is connected to the joint, the spherical hinge is mounted in the joint, and the rod body and the joint are integrally injection-molded or fixedly connected, such that an end portion of the rod body is connected to the joint. According to the connecting rod, the center distance can be adjusted, the universality of a product is greatly improved, and the split structure can relatively shorten the flow distance of macromolecules, thereby avoiding the risk of inferior-quality products caused by an insufficient flow. An injection molding weld line is arranged at the end of a molding, i.e. the non-stressed position of a product, thereby effectively improving the strength of the product.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
7.
ENCLOSED HOLLOW CORE SHAFT AND SHOCK ABSORPTION BALL JOINT USING SAME
An enclosed hollow core shaft (1) and a shock absorption ball joint using the core shaft (1). The core shaft (1) includes a core shaft body (4), the core shaft body (4) having a hollow structure (7) inside and connection structures (5) enclosing said hollow structure (7) on both ends of the core shaft body (4). Taking the enclosed hollow core shaft (1) as a base frame, a layer of rubber between the core shaft (1) and an outer cover (3) is vulcanized, thereby obtaining the shock absorption ball joint.
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