98results about How to "Improve working condition adaptability" patented technology

The invention relates to a hydro-pneumatic spring suspension cylinder which mainly comprises an upper connector 1, a damping hole 2, a main piston 3, a cylinder barrel 4, a piston rod 6, a guide sleeve 7, a large nut 8, a lower connector 9, a lower seat 10, a cylinder 12, a floating piston 13, a sealing ring 15, an upper seat 16 and a one-way valve 17, wherein the piston rod 6 is of a hollow structure, and the guide sleeve 7 is arranged outside the hollow piston rod. A main oil chamber 18, an auxiliary oil chamber 11, a piston rod cavity oil chamber 5 and an air chamber 14 are formed inside the cylinder. The upper connector of the hydro-pneumatic spring suspension cylinder is connected with a frame, the lower connector is connected with an axle, an engineering vehicle can realize a wide-range lifting function, vibration reduction requirements under a severe road condition in the running process can be met, working condition adaptability and running smoothness of the vehicle are improved, and comfort of drivers and passengers is improved.

The invention discloses a free mobile gate seat tower crane, comprising walking mechanisms and a tower hoisting mechanism, wherein the walking mechanisms are trackless tire walking mechanisms; and the tower hoisting mechanism is arranged on a gate seat supporting apparatus which is arranged on four groups of walking mechanisms to implement the movement. The trackless tire walking mechanisms are adapted to various mobile working environments and have the walking mobility on various roads; lateral rubber guide pulleys can guide and limit the wheels to smoothly pass along a vertical guide wall so as to improve the walking safety; the gate seat supporting apparatus can make the vehicles under the crane pass through freely; height-varying supporting legs make the crane adapt to the roads with higher grades on two sides; a span regulating apparatus can regulate the span between the wheels to adapt to different road widths, and a supporting platform is connected with a foundation tower column and a standard tower column to realize the assembly and operation in low position and the operation and disassembly in high position. The invention is a hoisting apparatus which is capable of beingadapted to a large operation range and complex working conditions and can move freely.

The invention discloses a system and method for calibrating the external characteristic of an electronic control diesel engine for a loader. The system comprises the engine, a hydraulic torque converter, a gearbox and a drive axle which are sequentially connected through a transmission shaft. The hydraulic torque converter is connected with a steering pump and a work pump of the loader through a gear transmission system. Collected rotating speed and torque signals are transmitted to a data collection system through a sensor set. Collected parameters are transmitted to a data processing system to be analyzed through the data collection system. An analysis result is transmitted to a calibration computer. A calibration result is written in an ECU of an engine electronic control system through the calibration computer. When a test is carried out, the calibration computer controls the rotating speed of the engine through the ECU, and test automation is achieved. From the actual work condition of the loader, the actually consumed torque of a hydraulic pump in the shoveling and loading process of different materials is tested, an external characteristic curve of the engine is calibrated by adjusting the parameters of the engine, and the diesel engine for the loader is made to work in a low-oil-consumption area under different work conditions.

The invention discloses a hybrid MPC energy management method for a parallel hybrid electric vehicle. The hybrid MPC energy management method specifically comprises the following steps: modeling the parallel hybrid electric vehicle; predicting a vehicle speed based on data driving; enabling the hybrid model to predict an energy management strategy. According to the method, the influence of gears on a hybrid electric vehicle model is considered, an engine fuel consumption model and a battery model are constructed by adopting a segmented affine technology, the unification of the models is achieved, and a foundation is laid for designing a hybrid MPC energy management method; and the influence of vehicle speed change on energy management optimization is considered. The BP neural network algorithm is used for predicting the vehicle speed in the prediction time domain, the power demand of the vehicle in the prediction time domain is calculated and applied to the hybrid MPC, collaborative optimization of torque distribution and gear shifting decision is achieved, the working condition adaptability of the hybrid MPC is improved, and the fuel economy is better.

The invention discloses a planet gear bearing forced lubricating device for a wind power generation gearbox. The planet gear bearing forced lubricating device comprises a box body, a planet carrier, a planet gear, a bearing and a planet pin; the planet carrier is rotationally supported on the box body; the planet pin is arranged on the planet carrier; the planet gear is rotationally supported on the planet carrier by the bearing; the inner lateral surface of the planet carrier, which is opposite to the inner lateral surface of the box body, is provided with a ring-shaped convex retainer; a centrifugal oil collection cavity is formed between the inner lateral surface of the planet carrier and the inner wall of the ring-shaped convex retainer; the box body is provided with an oil injection duct and a spray nozzle is arranged on the box body; the oil injection duct is communicated with the spray nozzle; an outlet of the spray nozzle is toward the centrifugal oil collection cavity on the planet carrier; the planet pin is provided with an oil passage; an inlet of the oil passage is communicated with the centrifugal oil collection cavity; and an outlet of the oil passage is communicated to the position of the bearing positioned outside the planet pin. The planet gear bearing forced lubricating device has reasonable structure and is convenient to process and manufacture; and the oil supply can be regulated according to the working conditions.

The invention discloses a networked hybrid electric vehicle efficient energy management method considering road gradient. The method comprises the steps of modeling a parallel hybrid electric vehicle; predicting the speed of the networked hybrid electric vehicle; and carrying out an MPC energy management strategy based on ECMS. The influence of road gradient on energy management is considered, a time domain optimization problem is converted into a space domain problem, and a foundation is laid for designing the MPC energy management strategy based on ECMS; the influence of vehicle speed change on energy management optimization is considered, V2V communication information is fused, the vehicle speed is predicted within a prediction distance by a chain neural network, and the vehicle speed is applied to the ECMS-based MPC energy management strategy; the calculation efficiency and adaptability are improved, a gear shifting penalty factor is added into a target function, frequent gear shifting is avoided, and the driving performance is improved.

The invention relates to the technical field of machining, and discloses an auxiliary supporting robot for mirroring machining of thin-wall components and a following supporting method thereof, and the robot and the method are mainly used for auxiliary follow-up supporting in mirroring machining of large thin-wall components in the fields of aerospace and the like. The mobile supporting robot mainly comprises a mobile unit, a parallel lifting unit, a follow-up supporting unit, an electric control system and a sensing system. In the following machining process, the supporting robot not only canguarantee good supporting rigidity, but also can improve the working efficiency and the machining quality of workpieces, and the adaptability of the supporting robot to the mirroring machining process of the thin-wall components can also be continuously improved by applying the machining following supporting method multiple times and combining with a machine learning algorithm.

The invention provides a power-driven device of concrete pumping equipment, which comprises a first power source (1), a second power source (2), a first hydraulic pump (3), a hydraulic motor (6), a transfer case (7) and a second hydraulic pump (8), wherein the first power source (1) is connected to the first power input end of the transfer case (7) through the first hydraulic pump (3) and the hydraulic motor (6); the second power source (2) is in transmission connected with the second power input end of the transfer case (7); the power output end of the transfer case (7) is in transmission connection with the second hydraulic pump (8); the second hydraulic pump (8) hydraulically drives a workpiece (14) through a hydraulic driving pipeline (16); and the oil outlet of the first hydraulic pump (3) is hydraulically connected to the hydraulic driving pipeline (16). Due to the power-driven device, the pumping property and the working condition adaptive capacity of the concrete pumping equipment can be improved, so as to realize higher economic benefits.

The invention discloses a novel on-line continuous preparation profile control oil displacement device which comprises an incoming water decompression system, a disperse dissolution system and an automatic control system. The incoming water decompression system comprises a high-pressure end and a low-pressure end; the high-pressure end is connected with a water storage tank through a high-pressure water supply pipeline provided with an adjusting valve A; a water level indicator is arranged at the bottom of the water storage tank; the low-pressure end is composed of a centrifugal pump, a filter, an adjusting valve B and a flowmeter A which are sequentially connected through water supply pipelines; the disperse dissolution system comprises a hopper, an unloader, an airtight funnel, a powder air pipeline, a hydraulic jet device and a dissolution tank; and the automatic control system is composed of a programming module, a DCS system, an adjusting valve, frequency conversion equipment and a flowmeter. According to the novel on-line continuous preparation profile control oil displacement device, higher working condition adaptability, control stability and using safety are achieved, on-line preparation of a high concentration polymer solution is achieved, meanwhile, preparation processes for multiple aspects can be achieved, a wider system selective space is achieved accordingly, and the purpose of reducing system selective cost is achieved.

The invention relates to a lithium battery pack SOC measuring device and method, and belongs to the field of new energy measurement and control. The method is characterized in that in allusion to a lithium battery pack SOC measurement target, an SOC value is measured accurately through building a lithium battery pack targeted battery maintenance and test system (BMTS) platform; networking control is realized through an RS485 bus mechanism, and an embedded monitor and control generated system (MCGS) and an industrial personal computer (IPC) are equipped to realize local control and remote control; an aviation head is additionally arranged and a jumper identification code is allocated so as to improve the adaptability for various types of lithium battery packs; and three-level protection is realized through additionally arranging an independent protection unit (IPU) in a main charging and discharging circuit. According to the lithium battery pack SOC measuring method, a series charging to equalization charging process is integrated on the basis of constant current (CC) discharge so as to improve the capacity utilization efficiency of the lithium battery packs; and a problem that each single battery is fully charged is solved through constant current (CC) charging to constant voltage (CV) charging mode switching, and effective measurement for the SOC value is realized.

The invention discloses an electric fork head assembly and a three-way piling car. The electric fork head assembly comprises an inner sliding frame assembly, a lateral moving sliding frame assembly, a bridge assembly and a pallet fork assembly, the inner sliding frame assembly is connected with a forklift portal frame in a lifting mode through idler wheels, and a sliding block is arranged on the inner sliding frame assembly. The lateral moving sliding frame assembly is connected with the inner sliding frame assembly in a lateral moving mode, and an electric cylinder drives the lateral moving sliding frame assembly to laterally move left and right along the inner sliding frame assembly. One end of the bridge assembly is movably connected with the lateral moving sliding frame assembly. The pallet fork assembly is rotatably arranged at the other end of the bridge assembly. According to the electric fork head assembly and the three-way piling car, by arranging the sliding block and a linear guide rail, when a bridge laterally moves to the maximum stroke along a lateral moving sliding frame under the action of a power device, the electric cylinder can drive the lateral moving sliding frame to laterally move along an inner sliding frame, then the lateral moving stroke of the bridge is additionally increased, a driver can select the proper lateral moving distance according to the sizes of different channels and the sizes of different cargoes, a forklift is matched with the corresponding stacking channel and goods, and the working condition adaptability of the forklift is improved.

The invention provides a vehicle control method and device, and a vehicle. The method comprises the steps of obtaining multiple working condition parameters of a vehicle; converting the working condition parameters into fuzzy values according to a membership function of each working condition parameter in the preset working condition parameters; determining the fuzzy interval of the fuzzy values of each working condition parameter in a corresponding theoretical domain space; determining the current working condition of the vehicle according to a preset fuzzy recognition rule and the fuzzy interval; obtaining engine torque and motor torque corresponding to the current working condition of the vehicle in a preset database. The vehicle control method can be used for identifying the current working condition of the vehicle, optimal engine torque and motor torque are obtained according to the current working condition, control parameters can be adjusted in time according to the change of working conditions, the adaptability of the working conditions is improved, and the aim of fuel economy and emission performance reaching the optimum is achieved.

The invention relates to a pressure spring self-locking type power battery quick release device applied to a new energy truck, which is arranged between a power battery and a battery mounting bracketand is used for realizing quick locking and unlocking between the power battery and the battery mounting bracket. The device is characterized by structurally comprising two locking beams for forming asupporting part of the battery mounting bracket, and main and auxiliary locks respectively integrated on the two locking beams, the main lock and the auxiliary lock are the same in structural composition and each comprise a locking and unlocking mechanism, a lock row assembly, a spring bolt assembly and an adjustable self-locking mechanism. The device is advantaged in that automatic locking, multi-mode manual adjustment and calibration, associated unlocking, staggered multiple interference fit and firm locking can be achieved, overhauling and maintenance can be rapidly conducted through simple tools, the structural comprehensive strength is high, deformation resistance and cracking resistance are achieved, the fault redundancy is high, working condition adaptability is high, and the equipment adaptation degree is high.

The invention discloses a back-bending gradually-expanding refrigeration wave rotor capable of outputting shaft work, and belongs to the field of gas expansion refrigeration. The refrigeration wave rotor capable of outputting the shaft work is mainly characterized in that a back-bending and gradually-expanding pressure oscillation tube is adopted. The curve shape of an axis of the pressure oscillation tube is described by adopting a Bezier curve with four control points, a complex curve shape can be realized only by changing the positions of several control points, so that design variables are effectively reduced, and structural optimization is facilitated. The oscillation tube is of a back-bending structure with the front section small in curvature and the rear section large in curvature, and the part with the small curvature can guarantee small jet flow loss, so that the gas wave expansion process is stable and efficient in operation; and the backward bending structure with the large subsequent curvature can enable the wave rotor to output the shaft work, so that a conversion mode of the expansion work of the wave rotor is further enriched, and the working condition adaptability of the wave rotor is improved. By adopting the gradually-expanding oscillation pipe, the combination of gas wave expansion and volume expansion can be realized, so that the expansion refrigeration degree of the wave rotor is further improved, the temperature of the expanded gas is reduced, and the refrigeration efficiency is improved.

The invention discloses a kalanchoe daigremontiana planting method and a plant restoration system, and mainly relates to the field of plant cultivation and heavy metal restoration. According to the method, the effect of efficiently restoring heavy metal lead and zinc polluted soil in a short period is achieved through soil water permeability treatment, as well as earlier-stage culture, individual selection and planting culture of kalanchoe daigremontiana. According to the plant restoration system, seedlings on the planted and cultured kalanchoe daigremontiana maternal plants are stimulated, so that circulating type plant restoration of the kalanchoe daigremontiana is realized; by arranging the detachable and splicable fence strips, the working condition adaptability of the restoration system is greatly improved, construction operation of workers is facilitated, and the cost of the kalanchoe daigremontiana in the plant restoration process is reduced; by arranging the kalanchoe daigremontiana planting device reasonable in structure and a monitoring system of the kalanchoe daigremontiana planting device, kalanchoe daigremontiana seedlings poor in growth capacity are eliminated while monitoring and meeting the environmental requirements, and the plant restoration efficiency and effect are improved.