43results about How to "Improve generalization rate" patented technology

The invention discloses a platformization vehicle body floor structure. The platformization vehicle body floor structure comprises a front floor assembly and a rear floor assembly, wherein the front floor assembly is connected with the rear floor assembly through a connecting part of which the length is greater than the changing quantity of wheelbase of a lower vehicle body. According to the platformization vehicle body floor structure disclosed by the invention, the change of the wheelbase of the lower vehicle body is realized through changing the length dimension of a part at a joint of the rear floor assembly and the front floor assembly in the first length direction; the connecting position of the front floor assembly and the rear floor assembly can be adjusted to meet the adjusting requirement of the wheelbase of the lower vehicle body, so that the matching requirement of the vehicle body floor for the lower vehicle body with different wheelbases is met; the use rate of generalization parts and components can be increased, the change of the wheelbase of a platformization vehicle can be realized through the minimum change of parts, and the development period and the cost are reduced.

The invention relates to a modular design gearbox and a gear implementation method. The gearbox comprises a box body, a driving shaft, seven intermediate shafts and an output shaft, wherein the driving shaft, the seven intermediate shafts and the output shaft are arranged in the box body; fixing gears are arranged on the driving shaft and the output shaft; and each intermediate shaft is provided with a fixing gear and a floating gear arranged through a clutch. The modular design gearbox can achieve a mode with eight forward gears and four backward gears at the most so as to meet the needs of the eight forward gears for special machines, and meanwhile, the modes of seven forward gears and three backward gears, six forward gears and three backward gears and the like can be adjusted by controlling the matching of different clutches, so that the requirements of different main machines are met; moreover, the speed ratio of each gear of the gearbox can be flexibly adjusted without changing transmission paths; different speed ratio and gear requirements can be achieved by altering or deleting some of parts under the condition that the box body of the gearbox is not changed; and the moduledesign of the gearbox is achieved without changing the box body of the gearbox, the universalization rate of the parts of the gearbox is improved, and the production cost of the gearbox is reduced.

The invention discloses an identification method of sleep stage events. The identification method of the sleep stage events is used for interpreting sleep electroencephalogram and electro-oculogram mixed signals and includes the steps that the sleep electroencephalogram and electro-oculogram mixed signals are divided at preset time intervals to obtain a preset number of mixed signal fragments; allthe mixed signal fragments are adopted to obtain time domain waveforms corresponding to the mixed signal fragments respectively; preset rules in a rule library are adopted to process all the time domain waveforms to obtain processing results; if the processing results meet screening requirements corresponding to the preset rules, the mixed signal fragments corresponding to the processing resultsare marked as sleep stage event types corresponding to the preset rules. By the adoption of the identification method of the sleep stage events, huge differences caused by pure frequency band parameters on different users are effectively avoided, and the accuracy of interpreting the sleep electroencephalogram and electro-oculogram mixed signals is further improved. The invention further disclosesan identification device and equipment of the sleep stage events and a computer readable storage medium. The identification device and equipment of the sleep stage events and the computer readable storage medium all have the beneficial effects.

The invention relates to a three-axis servo feed transmission structure of a machining center, which comprises a ball screw, a nut seat, a motor seat, a bearing seat, a lock nut, two groups of precision bearings supporting two ends of the ball screw, a coupling and a servo motor; an outer side seal and an inner side seal are respectively placed on two sides of each precision bearing, and a limit buffer collision block is placed on the ball screw which is near to the precision bearings; a gap is preserved in the position of an internal shoulder of a back-end lead screw of the ball screw; and the pre-stretched lock nut is placed at the tail end of the ball screw. The three-axis servo feed transmission structure has the benefits of improving the precision and the stability of servo transmission, having high universalization rate of parts, controlling the production cost, reducing the failure rate and facilitating the repair and the maintenance.

The invention discloses a mounting structure of a threshold decoration part. The threshold decoration part comprises end plates at the two ends of the threshold decoration part, a side plate and a bottom plate, wherein the side plate and the bottom plate are connected with the end plates. The end plates at the two ends are provided with snap fastener assemblies which are connected with a front fender and a side surrounding outer plate respectively, the two ends of the side plate are respectively provided with a first buckle assembly which is in clamping connection with the front fender and the side surrounding outer plate, and the side plate is further provided with a plurality of second buckle assemblies which are in clamping connection with a threshold reinforcing cross beam. The bottom plate is provided with a nut assembly which is fixedly connected with the threshold reinforcing cross beam. Fasteners which are high in market generalization rate, simple in structure, and reliable in assembling are mounted on an automobile body, the mounting positions are reasonably arranged, and the fasteners are matched and assembled according to the assembling characteristics and the assembling requirements of different positions for use. The mounting structure of the threshold decoration part improves the reliability, and is low in possibility of mistakenly arrangement and missing arrangement and high in assembling operation, thereby achieving the purpose of simple and efficient assembling.

The invention provides a mounting device of a rotary speed reducer of a crane, which comprises a mounting platform and an eccentric flange connecting support, wherein the mounting platform is fixed on the crane, and the eccentric flange support is fixed on the mounting platform. Therefore, the mounting device of the rotary speed reducer of the crane and the using method thereof can lead the craneto load the rotary speed reducers with different configurations by using different eccentric flange connecting supports on the mounting platform. The mounting device of the rotary speed reducer of the crane has simple structure and can regulate the rotation center distance on site without using an eccentric speed reducer, greatly improve the universalization rate of the mounting platform and reduce the production and maintenance cost of the crane; and the corresponding mounting method is convenient to operate, and simple and easy to operate and can greatly improve the working efficiency of the crane.

The invention discloses a hanging type three-pedal arrangement method, and belongs to the technical field of vehicles. The hanging type three-pedal arrangement method comprises the steps that: the height difference Ha between an accelerator pedal point and a heel point is calculated according to the sitting posture height H30 range of a platform driver; the initial angle [theta]a of an accelerator pedal is calculated according to the range of the sitting posture height H30 of the platform driver; according to the foot position of the platform driver, the height difference Ha between the accelerator pedal point and the heel point, the initial angle [theta]a of the accelerator pedal and the shape and size of the accelerator pedal, the initial arrangement position of the accelerator pedal in the XZ direction is determined; and the height difference Hb of the brake pedal point and the heel point is obtained, and the initial angle [theta]b of the brake pedal is obtained. According to the hanging type three-pedal arrangement method, preliminary arrangement of the three pedals can be rapidly completed through quantized arrangement gap requirements among the three pedals and the corresponding position relation of different driver sitting posture heights in the platform, the generalization rate and arrangement efficiency of the platform are improved, and the development cost is reduced.

The invention discloses a power battery installing structure for a novel electric vehicle. The power battery installing structure comprises an expanded support body, a battery fixing support and a vehicle body beam. The power battery installing structure is characterized in that the expanded support body comprises reinforcing ribs, the two ends of each reinforcing rib are symmetrically provided with connecting tables respectively, the connecting tables are each of a groove structure, a plurality of through holes are formed in each connecting table, a turned edge is arranged on each connectingtable, the battery fixing support comprises a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate and a reinforcing plate, the first connecting plateand the end face of one side of a power battery are attached and fixedly connected through welding, first threaded holes are formed in the second connecting plate, corresponding second threaded holesare formed in the vehicle body beam, and the first threaded holes, the through holes and the second threaded holes are matched. Power batteries of different sizes can be assembled for the same vehicle type, the structure of a lower vehicle body does not need to be adjusted, the universality of the vehicle body is increased, and the research and development cost and manufacturing cost are saved.

The invention relates to a modularized steel-aluminum mixed auxiliary automobile frame structure and belongs to the technical field of automobile design and manufacture. The modularized steel-aluminummixed auxiliary automobile frame structure comprises a left edge beam module, a right edge beam module, a cross beam module and a reinforcing support module. In order to meet the requirements for theleft and right installation spans of different auxiliary automobile frames, a main module is universal, only the length of a middle cross beam is changed, the middle cross beam can be of a sectionalmaterial or metal plate stamping and welding structure, a main mold is not changed, a reinforcing support can be spliced and welded through steel profiles and aluminum profiles or steel pipes and aluminum pipes according to strength requirements, only the size of a welding fixture is adjusted, the change cost is quite low, the above auxiliary automobile frames are modularized through a bolt connection thought, the universality rate of parts between platform automobile models is increased, and development cost is reduced.

The invention relates to a passenger car rear-row seat rotating shaft fixing structure. The structure comprises a seat rotating shaft fixing hinge plate assembly and a car body rear wheel cover. The vehicle body rear wheel cover provides a welding plane and is connected with the seat rotating shaft fixing hinge plate assembly in a spot welding mode, and a seat rotating shaft is fixed to a vehicle body. The seat rotating shaft fixing hinge plate assembly comprises a fixing hinge plate assembly and a hinge reinforcing plate connected with the fixing hinge plate assembly in a spot welding mode. The fixing hinge plate assembly comprises a mounting shell and a lock hook; a U-shaped opening is formed in the mounting shell and is used for mounting and fixing a seat rotating shaft; and the lock hook can rotate and is matched with the mounting shell. The passenger car rear seat rotating shaft fixing structure has the advantages that the structure is simple, seat installation is more convenient and more efficient, the strength is high, and seat fixing is firmer. Requirements on a vehicle body rear wheel cover in an installation environment are low, the generalization rate is high, and a more positive effect on cost optimization is achieved.

The invention discloses a modular system for comprehensive treatment of ship engine waste gas. The system comprises a desulfurization and denitrification module, a chemical agent and supply module, achemical agent heating module, a wastewater/slag treatment module and a system pressure adjusting module; a seawater pump is adopted as a main pipeline force device; the desulfurization and denitrification module is a pneumatic reaction washing tower; a pressure adjusting module in the pneumatic reaction washing tower is an injection fan; a cavitation spraying system is arranged at the top of thepneumatic reaction washing tower and comprises a cavitation nozzle, a pump, a pipeline and a liquid medium; an ejector fan is arranged on one side of the pneumatic reaction washing tower, and an electrostatic dust collection device is arranged at the bottom of the pneumatic reaction washing tower; the chemical agent heating module comprises a heat pipe type waste heat recovery device and a heat exchanger; the chemical agent and supply module comprises a chemical agent storage box and a chemical agent mixing tank; and the wastewater/slag treatment module comprises a water treatment device and areaction waste slag storage tank. Efficient desulfurization, denitration, dust removal and carbon removal can be achieved, the installation cost can be controlled, the installation space is saved, and the universalization rate of functional components is increased through modular design.

The invention discloses a front-end wheel train driving power generation system and method and a vehicle. The system comprises an engine, a gearbox, an engine controller, a high-voltage generator, a transfer case, a high-voltage generator controller, a distribution box, a power battery and a power battery controller, wherein the gearbox, the engine controller and the high-voltage generator are arranged on the engine; the transfer case is arranged on the gearbox; the high-voltage generator controller is connected with the high-voltage generator; the distribution box is installed on the high-voltage generator controller, the power battery and the power battery controller are installed on the distribution box; the high-voltage generator is arranged at the front end of the engine, the high-voltage generator is driven by a belt pulley system at the front end of the engine to generate electricity, stable high-voltage direct current is output to the distribution box after rectification and voltage stabilization are carried out through the high-voltage generator controller, and the distribution box allocates different power outputs according to the actual electricity demand of each upper load connected to the distribution box. Therefore, stable high-power generation output can be realized during driving and parking of the vehicle; meanwhile, the power generation controller coordinates and controls the power generation system to work through a CAN bus and detects system faults, and high-voltage power utilization safety of the vehicle is guaranteed.

The invention discloses a method for realizing compatibility between a vehicle navigation storage space and a multimedia player storage space. The method comprises the steps that (1) the storage space of a vehicle-mounted product is divided into a first storage space and a second storage space, the first storage space is configured to be used for storing navigation data, and the second storage space is configured to be used for multimedia playing storage; and (2) responding to the monitoring condition that the function requirement of the vehicle-mounted product is a vehicle-mounted multimedia player, the first storage space and the second storage space are merged, the data in the first storage space is deleted, and the storage space obtained after merging is configured to be used for multimedia playing storage. The invention furthermore discloses the vehicle-mounted product. Through the method and the vehicle-mounted product, the vehicle-mounted product can be configured into different states according to different product function requirements, therefore, the development cost of the vehicle-mounted product is lowered, and the development cycle of the vehicle-mounted product is shortened.

The invention provides an automobile anti-collision beam and an automobile with the same. The automobile anti-collision beam comprises an anti-collision beam body (1), at least one energy absorption buffer block assembly (2) and an anti-collision beam mounting plate (3), wherein at least one energy absorption buffer block assembly (2) is arranged on the anti-collision beam body (1); and at least one energy absorption buffer block assembly (2) is provided with an anti-collision beam mounting plate (3). According to the energy absorption buffer block, a modular assembly structural form can be achieved, and the energy absorption buffer block can be conveniently adopted by different vehicle types, and the universalization rate is increased.