33results about How to "Reduced assembly weight" patented technology

The invention discloses an integrated driving device for a new energy vehicle. Through integrated design, a driving motor, a speed reducer and a differential mechanism are integrated, a shell is shared by the driving motor, the speed reducer and the differential mechanism, a motor shaft serves as not only an output shaft of the driving motor but also an input shaft of the speed reducer, the speed reducer comprises a first-level speed reduction gear set and a second-level speed reduction gear set, a differential mechanism shell is connected with a second-level speed reduction gear, a half axle gear in the differential mechanism is coupled with a vehicle half axle spline, and therefore power generated by the integrated driving device is transmitted to wheel hubs, and the vehicle is driven to run. The integrated driving device for the new energy vehicle is compact in structure and high in integration level, the number of parts is reduced effectively, axial dimensions are shortened, the weight of an assembly is reduced, and the layout flexibility of a power system of the whole vehicle is greatly improved.

The invention relates to an integrated driving device for a two-level electric vehicle. The integrated driving device is composed of a driving motor, a transmission and a differential mechanism. The transmission comprises an input shaft and an intermediate shaft. An intermediate shaft gear, a first-level reduction gear, a synchronizer and a second-level reduction gear are sequentially arranged on the intermediate shaft from right to left. A first spline, a second spline, a first-level gear and a second-level gear are sequentially arranged on the input shaft from right to left. An output shaft of the driving motor is connected to the first spline of the input shaft of the transmission. The second spline is fixedly sleeved with a parking gear. The first-level reduction gear is meshed with the first-level gear. The second-level reduction gear is meshed with the second-level gear. The second-level reduction gear and the differential mechanism are integrated. The second-level reduction gear is fixedly arranged on a differential mechanism shell in a sleeving mode and meshed with the intermediate shaft gear. Two axle shaft gears are fixedly into the differential mechanism shell. The axle shaft gears are connected with vehicle axle shaft splines. The integrated driving device has the advantages of being compact in structure and high in integration, and the performance of the electric vehicle is greatly improved.

The invention relates to a process for welding an intermediate section of an axle housing and shaft heads of a heavy-duty truck, in particular to a friction welding process of an intermediate section of a cast steel axle housing and shaft heads for a heavy-duty truck. The friction welding process is characterized in that the intermediate section and the shaft heads at two sides are clamped in special continuous driving friction welding equipment; the intermediate section of the axle housing is immovable; the shaft heads at the two sides rotate at high speed and apply an axial pressure; and the diffusion and re-crystallizing metallurgy reaction on an interface is realized by using the heat generation by friction and the pressure of the interface to be welded, and finally, the intermediate section of the axle housing is welded together with the shaft heads at the two sides. The invention has the characteristics of simple process, accuracy in control, stable and reliable welding quality, no defects such as melting weld joint air holes, interposition slag and heat cracks existing in the weld joint, fine weld joint tissue, higher strength of the weld joint compared with that of a base material and high welding efficiency. The welded axle housing can meet the requirements for vertical bending fatigue life and vertical static rigidity and has a certain significance on shortening the total lengths of the shaft heads, reducing the weight of an axle housing assembly, prolonging the service life of extrusion dies of the shaft heads and reducing the cost.

The invention discloses an injection-molding tailgate of a vehicle. The injection-molding tailgate includes an outer decorative plate and an inner plate. The outer decorative plate and the inner plateare injection-molding pieces, and the inner plate includes a rear windshield body part and a door board part; the outer decorative plate is fixedly bonded with the door board part, the rear windshield body part includes inner edges and outer edges, reinforcement slots are formed between the inner edges and the outer edges of the two sides of the rear windshield body part, and the reinforcement slots are internally provided with reinforced separation plates in the length direction; V-shaped reinforcement ribs are arranged between the reinforced separation plates and the inner edges, straight-line-shaped reinforcement ribs are arranged at intervals between the reinforced separation plates and the outer edges, and the width of the reinforced separation plates, the width of the V-shaped reinforcement ribs and the width of the straight-line-shaped reinforcement ribs are all 1.2-1.4 mm. The injection-molding tailgate is light and high in strength, and the bright marks generated on the surface are reduced.

The invention discloses a single cylinder synchronous expansion and contraction device with multiple sets of inhaul cables for a lorry-mounted crane. The device comprises a basic arm and a plurality of telescopic arms which are overlapped and sleeved in the basic arm; a telescopic oil cylinder of which the head is fixed on the tail of the basic arm and the barrel is fixed on a first section of the tail of the telescopic arm is arranged in each of the plurality of telescopic arms; the arm body of each telescopic arm is provided with a pulley, a telescopic arm cable, and a fixed plate; a rope row is arranged in each telescopic oil cylinder; and synchronous extending or contraction of multiple sections of the telescopic arms can be realized by the connection relationship of the parts, and the operation characteristics that the conventional arm can be only extended and contracted sequentially are changed to ensure that the multiple sections of the telescopic arm bodies are extended and contracted synchronously along with the extension and contraction of the inbuilt telescopic cylinders, so that the extension and contraction speed of the arm bodies and the efficiency of the lifting operation are improved greatly. The single cylinder synchronous expansion and contraction device with the multiple sets of inhaul cables for the lorry-mounted crane has a compact structure, the mode of winding steel wire ropes is skilful, the space in the arm body is fully utilized, and the problems that the conventional five-section telescopic arm expansion and contraction system for the lorry-mounted crane is implemented by arranging two inbuilt telescopic oil cylinders are solved.

The invention relates to a production method of a car engine compartment cover assembly. An engine compartment cover inner plate finished product can be obtained through the steps such as measuring and cutting of sheet stock, pavement of raw materials, hot pressing forming, mold stripping of a semifinished product, cooling stereotyping and blank processing, and an engine compartment cover outer plate finished product is obtained through the steps such as measuring and cutting of sheet stock, pavement of raw materials, hot pressing forming, mold stripping of a semifinished product, cooling stereotyping and blank processing; and a car engine compartment cover assembly finished product is obtained by assembling and splicing the engine compartment cover inner plate and outer plate. The engine compartment cover assembly produced through the method has the advantages that performance indexes such as sound insulation, environmental protection and miniaturization can meet the requirement that no accumulation of semifinished products in the entire production process, and the manufacturing cost is saved; and the entire production process of the product is free from producing harmful substances.

The invention provides an integrated double-motor distributed drive electric drive axle. The drive axle comprises an integrated power assembly, an axle housing and a hub reduction system, the integrated power assemblies are respectively arranged at the front end and the rear end of the axle housing; the integrated power assembly comprises a driving motor, a speed reducer and a differential mechanism; the driving motor drives the speed reducer and the differential; the hub reducers are respectively arranged at the left and right ends of the axle housing; the hub reduction gear arranged at the left end of the axle housing is in transmission connection with the differential mechanism of the integrated power assembly arranged at the rear end of the axle housing through a first half shaft; thehub reduction gear arranged at the right end of the axle housing is in transmission connection with the differential mechanism of the integrated power assembly arranged at the front end of the axle housing through the second half shaft, and therefore the integrated power assembly has the advantages that the weight of the assembly is reduced, the overall efficiency of the axle is improved, and meanwhile the space utilization rate of the whole vehicle is increased.

The invention discloses a vehicle door frame assembly of a new energy automobile and the new energy automobile. The automobile door frame assembly comprises an inner sealing strip aluminum profile, anouter sealing strip aluminum profile, an inner locking reinforcing steel plate, an outer locking aluminum profile, an automobile door framework front section aluminum profile, an automobile door framework lower rear section aluminum profile and an anti-collision steel beam. The automobile door frame assembly is made of a steel-aluminum mixed material; with the structural design of the inner sealing strip aluminum profile and the outer sealing strip aluminum profile, an upper frame of an automobile door frame is omitted, so that the weight of the automobile door frame assembly can be reduced,and the strength of the automobile door frame assembly can be ensured.

The invention provides an electric vehicle and an integrated controller and control system thereof, and the integrated controller comprises a first control chip which comprises a first core and a second core, wherein the first core is used for controlling an electric control module so as to drive a motor, and the second core is used as a vehicle control unit; and a second control chip which is used for controlling a vehicle-mounted charging module so as to realize alternating-current charging of the power battery by the external alternating-current power supply, or realize alternating-currentdischarging of the power battery to an external load through the alternating-current charging and discharging port. According to the integrated controller, the use of components can be reduced so thatthe cost can be reduced, the size can be reduced, and the assembly weight can be reduced.

The invention provides a differential mechanism shell and gear assembly, which comprises a shell, wherein the periphery of the shell is provided with a transmission gear in a sleeving mode, the periphery of the shell is provided with an external spline, the wall of a center hole of the transmission gear is provided with an internal spline, and the external spline and the internal spline form a spline connection structure for limiting circumferential rotation of the transmission gear relative to the shell; the periphery of the shell is further provided with a flange, the flange is arranged on one side of the external spline and connected with the side surface of the transmission gear in an abutting mode; the side, which is close to the flange, of the external spline is lower than the side,which is away from the flange, of the external spline, the distance L1 between the side surface of the side, which is away from the flange, of the external spline and the flange is greater than the hub width L2 of the transmission gear, and the external spline and the flange jointly act to limit axial movement of the transmission gear relative to the shell. According to the invention, through thearrangement of spline connection and cooperative use of the external spline and the flange, the existing bolt connection mode is replaced, the processing procedures are reduced, the cost and the assembly weight are reduced, and the actual meshing precision of the gear is improved through gear grinding after spline connection.

The invention discloses a saddle for operating a separation and coupling mechanism in a straight-pull rotation mode, which includes a housing, a tension spring is installed in the middle of the housing, the tension spring is connected with the tension spring seat, and the tension spring seat is fixed by a hexagon head bolt On the shell; a wedge is installed on the tension spring seat; a round hole is opened on the head of the hexagonal head bolt, one end of the torsion spring is connected with the hexagonal head bolt through the round hole, and the other end of the torsion spring is connected with the handle rod assembly; The right end of the spring is provided with a torsion spring fixing pin, and the torsion spring is fixed inside the housing through the torsion spring fixing pin; a pin hole is opened on the housing, and the handle rod assembly passes through the pin hole, and the gap between the handle rod assembly and the pin hole There are limit stops. The invention is simple in structure and reasonable in design, simplifies the separation and connection mechanism of the saddle, and can save a large amount of steel materials; the auxiliary consumption of welding seams and the like is reduced, the number of parts is reduced, the process capability is improved, and the production cost is greatly reduced; the action principle of the mechanism is improved , which improves stability.

The embodiment of the invention provides an electric drive axle, an axle structure and an automobile, and relates to the field of automobiles. The electric drive axle comprises a planetary gear speedreduction mechanism, a first gear mechanism, a second gear mechanism and a gear shifting mechanism, wherein the planetary gear reducing mechanism is in transmission connection with a driving motor; the first gear mechanism and the second gear mechanism are located on the two sides of the planetary gear speed reduction mechanism respectively and are in transmission connection with the planetary gear speed reduction mechanism respectively, and the gear shifting mechanism is selectively connected with the first gear mechanism and the second gear mechanism and used for enabling the first gear mechanism or the second gear mechanism to be in transmission connection with the output end. The structure of the electric drive axle has the characteristics of small size and light weight, the assembly efficiency can be improved, and the assembly weight and cost are reduced.

The invention discloses a manufacturing method of an automotive atmosphere roof. The manufacturing method comprises the following steps: forming a roof base material; punching the base material to obtained punched holes with a needed number, needed sizes and needed formation; attaching a ceiling fabric to the front surface of the base material; assembling a light source on the back face of the base material, and allowing light to penetrate through the holes of the base material to present atmosphere effect. According to the manufacturing method of the automotive atmosphere ceiling, atmosphere lamp effect is created by means of automatic equipment punching and the cooperative back light source on the premise that the weight of the automotive ceiling assembly is not increased; and through the changes of the back light source, dynamic ornamental effect can be presented.

The invention discloses a glass reinforcing plate for an automobile skylight and a skylight assembly with same and an automobile. The glass reinforcing plate comprises a molding thin plate. A U-shaped groove is molded in the middle of the molding thin plate in the longitudinal direction. A honeycomb paper core is arranged inside the U-shaped groove in the longitudinal direction of the groove. A first glass fiber layer and a first PU layer are arranged at the lower end of the honeycomb paper core in a padded mode and connected with the molding thin plate into a whole. The upper end of the honeycomb paper core is covered with a second PU layer and a second glass fiber layer in sequence from top to bottom, and the second PU layer and the second glass fiber layer are connected with the molding thin plate into a whole. The glass reinforcing plate is of a sheet-shaped structure provided with the PU layer, the glass fiber layer, the honeycomb paper core, the glass fiber layer and the PU layer from top to bottom in sequence, the weight of the reinforcing plate is lowered, the strength and the rigidity of the reinforcing plate are greatly improved by covering the upper and lower ends of the honeycomb paper core with the glass fiber layers, the glass reinforcing plate has the advantages of being low in weight and high in strength and rigidity, and the automobile adopting the automobile skylight with the reinforcing plate is low in overall weight and small in energy consumption.

The invention discloses a circular tube air chamber automobile intercooler. The circular tube air chamber automobile intercooler adopts aluminum circular tubes to make an air chamber which replaces a cast air chamber and a main piece in an original intercooler. One end of a circular tube air chamber (2) is bent to form a required angle; the bent part serves as an air inlet and outlet section; a straight line part serves as an air chamber section; a mounting hole for a cooling tube (3) and a mounting hole for a side plate (1) are machined in regulated positions on the air chamber section, so that the air chamber section also has the function of a main piece; cooling tubes (3) and side plates (1) are installed in prefabricated holes of left and right circular tube air chambers (2); heat dissipation straps are installed between the cooling tubes (3) and between the cooling tubes (3) and the side plates (1); the other end of the circular tube air chamber (2) is plugged through a blocking cap (6); a guide plate (7) is installed at the tail of the circular tube air chambers (2). An assembled intercooler is fixed through a special clamp, brazing is accomplished in a nitrogen protection brazing furnace, and the clamp is removed after the intercooler is discharged from the furnace, so that the manufacture of an intercooler assembly is accomplished.

The invention discloses a heavy transmission shaft middle bracket assembly with rubber vulcanized on a bearing outer ring, and relates to the field of middle support assemblies; the heavy transmissionshaft middle bracket assembly comprises a fixed support and a ball bearing, the outer ring of the ball bearing is vulcanized with a rubber buffer pad at a low temperature, so that the ball bearing and the rubber buffer pad form an integrated structure; and the ball bearing is directly mounted and fixed with the fixed support through the rubber buffer pad. The heavy transmission shaft middle bracket assembly has the beneficial effects that the machining and assembling procedures of three parts, namely a bearing seat and a snap ring, are reduced, the assembling period is shortened, and the partproduction procedure is simplified; the weight of the middle support assembly is reduced, and the cost of the middle support assembly is reduced; the rubber buffer pad and the bearing are of an integrated structure, interference fit does not exist between the bearing and the rubber buffer pad, the working clearance of the bearing can be effectively controlled, the service life is prolonged, the bearing is reliably fixed, and the bearing is prevented from being disengaged from the rubber buffer pad.

The invention relates to a lightweight balance shaft assembly. The two edges of a vehicle frame are erected between a left triangular support and a right triangular support. The outer side of the left triangular support and the outer side of the right triangular support are provided with a left bearing hub assembly and a right bearing hub assembly. An outer ring of a left half shaft in the left bearing hub assembly and an outer ring of a right half shaft in the right bearing hub assembly are provided with a left bearing hub and a right bearing hub respectively. The outer side of the left bearing hub assembly and the outer side of the right bearing hub assembly are fixed through a left end cover and a right end cover respectively. The mode that double sealing is conducted on the inner side and outer side of oil seal and left and right sealing rings is adopted for sealing of the left bearing hub assembly and the right bearing hub assembly. The left half shaft outside the left bearing hub and the right half shaft outside the right bearing hub are further provided with nonmetal linings respectively to form a self-lubricating structure. The lightweight balance shaft assembly has stability and guarantees lightweight implementation so that the transmission shaft movement space can be increased, the lightweight balance shaft assembly is simple in structure, low in cost and light in weight, the structure is simplified, and the manufacturing difficulty is lowered.

The invention discloses a two-planetary gear mechanism. The two-planetary gear mechanism comprises an outer gear disc, the outer gear disc is respectively meshed with two first planetary gears, the outer gear disc is respectively rotatably connected with the two first planetary gears, the two first planetary gears are respectively rotatably connected with two first fixed shafts, the first fixed shafts are fixedly connected with the inner side walls of limiting discs, and the inner side walls of the limiting discs are fixedly connected with second fixed shafts, the second fixed shafts are meshed with second planetary gears, and the second fixed shafts are rotatably connected with the second planetary gears; the second planetary gears are rotatably connected with second sun gears, the secondsun gears are meshed with the second planetary gears, the second sun gears are fixedly connected with first vertical cylinders, and the limiting discs are fixedly connected with second vertical cylinders. The two-planetary gear mechanism provided by the invention has the beneficial effects of reducing the weight of parts, and the manufacturing cost.

The invention relates to the field of lifting devices, and discloses a non-differential follow-up synchronous double-cylinder lifting mechanism. The lifting mechanism comprises an oil pump (1), a reversing valve (10), a main oil cylinder (2), an auxiliary oil cylinder (3), a first oil circuit (11) and a second oil circuit (12), a main upper cavity (201) and an auxiliary upper cavity (301) communicate with each other and are connected to an outer joint A of the reversing valve (10) through the first oil circuit (11), and a main lower cavity (202) of the main oil cylinder (2) and an auxiliary lower cavity (302) of the main oil cylinder (2) communicate with each other and are connected to another outer joint B of the reversing valve (10) through the second oil circuit (12). The non-differential double-cylinder linkage follow-up design structure is adopted, the product assembly weight is reduced, meanwhile, the synchronous stable work of the lifting/falling process of a cab is realized, and the comfort requirement at the vehicle travelling state is met; and the non-differential follow-up synchronous double-cylinder lifting mechanism has the characteristics of simple structure, low cost, high production efficiency and safety and reliability, and a large application and popularization market is achieved.