66results about How to "Avoid undermotivation" patented technology

The invention relates to a combined cooling and power system for recycling waste heat of automobile tail gas. The combined cooling and power system is used for recovering the waste heat of the automobile tail gas for power generation and refrigeration. The combined cooling and power system comprises an organic Rankine device, a power generation device, a refrigeration device, a regulation and control device and a cooling loop. The organic Rankine device is used for obtaining the energy of the waste heat of the tail gas by exchanging heat with tail gas exhausted by an exhaust pipe of an automobile engine, and provides mechanical work through a circulating working medium. The power generation device is connected with the organic Rankine device and used for obtaining the mechanical energy of the organic Rankine device to generate power. The refrigeration device is connected with the organic Rankine device and used for obtaining the mechanical energy of the organic Rankine device to perform refrigeration. The regulation and control device is connected with the organic Rankine device, the power generation device and the refrigeration device and used for controlling the mechanical work of the organic Rankine device according to loads. The cooling loop is connected with the organic Rankine device and the refrigeration device and used for exchanging heat with the organic Rankine device and the refrigeration device. Compared with the prior art, the combined cooling and power system has the advantages of reducing pollution, saving energy, achieving sufficient energy utilization, lowering cost and the like.

The invention discloses a control method and a control device for an automobile air conditioner compressor. The method comprises the following steps: determining target temperature of an air conditioner evaporator according to temperature outside an automobile, light intensity, temperature set by a user and temperature in the automobile, acquiring the driving current of an electromagnetic valve in the air conditioner compressor according to the determined target temperature of the air conditioner evaporator, and finally determining the output torque of an engine of the automobile by virtue of the acquired driving current of the electromagnetic valve in the air conditioner compressor. According to the control method and the control device, the driving current of the electromagnetic valve in the air conditioner compressor is slowly regulated to fulfill the air of slowly regulating the output torque of the engine of the automobile according to the acquired target temperature of the air conditioner evaporator, so that the rotating speed fluctuation of the engine of the automobile is effectively avoided, the phenomenon of insufficient power of the automobile is also avoided, and the safety performance of the whole automobile is further improved.

The invention discloses a lorry automatic gearbox crawling control system based on clutch target torque, which comprises the clutch synchronic examination sub-module, a vehicle sliding examination sub-module, and a clutch overheating examination sub-module. TCU utilizes the crawling control to vehicle according to the output signals of each sub-module. The crawling control to vehicle of TUC comprises the crawling control mode in waiting state, in the mixed accelerator state, in the mandatory junction state and in synch state. The switches of various control modes are up to the current vehicle state. Target speed (TS) of engine and clutch target position (ICP) in different vehicle state can be gained by the crawling control to vehicle of TCU. The method can meet the crawling control demands in various vehicle working conditions, protect clutch as much as possible and give drivers the maximum controllability of vehicle crawling.

The invention relates to the technical field of engineering machinery, and discloses an engineering truck and a drive system thereof. The drive system comprises a multi-stage axle and an upper cart engine which are arranged on the engineering truck, at least one hydraulic motor which is connected with a primary axle in a driving manner, and a hydraulic pump which supplies oil to the hydraulic motor, wherein the hydraulic pump draws power from the upper cart engine. In the drive system of the engineering truck provided by the embodiment of the invention, a certain axle is driven by utilizing power of the upper cart engine and a corresponding hydraulic system, or a certain axle is driven by virtue of an independent engine and a corresponding hydraulic system thereof, so that auxiliary drive force is provided to the whole truck when the driving capability of a lower cart engine is deficient or the power transfer capability of the lower cart engine is poor, thus the driving performance of the whole truck is improved, and the requirement on power when the engineering truck is in a server road condition or climbs can be better fulfilled.

The invention relates to a tail-gas recycle utilize device, with lower temperature of tail gas, saved energy, and environment protection. Wherein, it comprises an engine (7), a ventilate tube (8) of engine, a tail gas tube (9), a sound silencer (10), a heat exchanger (1), a water tank (2), a hot water pump (3), at least one heat emitter (4), and a relief valve (5); the hot side of heat exchanger (1) is connected to the ventilate tube (8) and the tail gas tube (9); the cold side of heat exchanger (1), said water tank (2), hot water pump (3) and the heat emitter (4) are serially connected by the hot water tube to form a cycle circuit; said relief valve (5) is on the hot water tube. The invention can be used in energy-saving technique of vehicle.

The invention relates to an anti-icing and deicing device and method for wings and emages of a turbo-prop aircraft, the device comprises a system close loop, a TKS fluid reservoir heating loop, an anti-icing and deicing heat transfer loop heat pipe, a distributed loop heat pipe and a TKS deicing mechanism, wherein the system close loop, the TKS fluid reservoir heating loop and a heat transfer loopshare a set of heat transfer evaporator (1), in an anti-icing state, the TKS fluid reservoir heating loop, the anti-icing and deicing heat transfer loop heat pipe and the distributed loop heat pipe work; in a deicing state, the TKS deicing mechanism works. Compared with the prior art, the TKS system deicing efficiency is improved greatly, the icing phenomena of the wings and the emages are reduced, the flight stability of the aircraft is ensured, and the system safety is reliable; waste heat of an exhaust pipe is taken as a heat source, and the energy comprehensive utilization ratio of a single turbo-prop aircraft is improved.

The invention aims to provide a hybrid four-wheel drive system for improving riding comforts and a control method thereof. The hybrid four-wheel drive system comprises an engine, front wheels, a motor and rear wheels, the front wheels are mechanically connected with the engine through a speed changer, the rear wheels are mechanically connected with the motor through a speed reducer, a power supply of the motor is electrically connected with a low-voltage battery unit through an inverter, the motor is connected with a motor controller, the motor controller is connected with a riding comfort controller, and the riding comfort controller is respectively connected with the inverter, the low-voltage battery unit, a vehicle speed sensor, an engine rotating speed sensor, wheel speed sensors of all wheels, an accelerator pedal sensor, a braking pedal sensor and an engine control unit. According to the hybrid four-wheel drive system for improving riding comforts and the control method thereof, when the engine or a vehicle is in a poor working condition, the auxiliary drive by the rear wheels can be performed, so that the engine can work in the best fuel oil range, the vehicle can be assisted on stable operation, during braking, the motor of the rear wheels can be used for charging batteries, energy recovery can be achieved, and the comforts are improved.

The invention relates to an underground coal mine coal seam hydraulic fracturing-cutting coupling permeability-improving method. The underground coal mine coal seam hydraulic fracturing-cutting coupling permeability-improving method comprises the following steps that 1, coal and rock parameters are actually measured on site, and all numerical simulation parameters are determined; 2, numerical simulation is conducted on coal seam hydraulic fracturing, and on-way resistance change and the peak value area distance of high-pressure water spreading in coal and rock holes and fractures are analyzed;3, hydraulic fracturing drilling positions and hydraulic cutting drilling positions are arranged according to the peak value area distance; 4, drilling, hole sealing and hydraulic fracturing permeability-improving construction are conducted at the hydraulic fracturing drilling positions; 5, after hydraulic fracturing permeability-improving construction is completed, a high-pressure pump station device of hydraulic fracturing permeability-improving equipment is moved to the hydraulic cutting drilling positions to conduct drilling, after pressure relief of a drill hole, hole sealing is conducted, and hydraulic cutting permeability-improving construction is conducted; and 6, the high-pressure pump station device of the hydraulic fracturing permeability-improving equipment is moved to the hydraulic fracturing drilling positions, and the step 4 is repeated till permeability-improving construction of a whole mine is completed. According to the underground coal mine coal seam hydraulic fracturing-cutting coupling permeability-improving method, the coal seam permeability-improving effect is greatly improved.

The invention relates to a telescopic lateral thruster, which comprises a gear box and blades, wherein an installing base is arranged on a boat body, a hollow support pipe passes through the center of the installing base, the top of the hollow support pipe is connected with an upper beam, guide rods positioned at both sides of the hollow support pipe pass through the upper beam, the lower ends ofthe guide rods are connected with the installing base, the tops of the guide rods are connected with a hook base fixed on the boat body, a collision hook is arranged on the hook base, a hook pin postis arranged on the upper beam, two hydraulic oil cylinders are arranged between the installing base and the upper beam, the guide rods and the hydraulic oil cylinders are symmetrically and respectively arranged at both sides of the hollow support pipe, the lower end of the hollow support pipe is provided with the gear box, the hollow support pipe and the gear box are also provided with a support plate, the output end of the gear box is the blades, a round barrel body protection cover is arranged outside the blades of the gear box in a matching way, a pair of stress shafts passes through the support plate, the upper ends of the stress shafts are fixedly connected with the installing base, the lower ends of the stress shafts are connected with a permanent seat arranged on the boat body below the water line, and a transmission shaft is arranged in the hollow support pipe and is connected with the input end of the gear box.

The invention relates to a gear shifting prompting method and a gear shifting prompting system and belongs to the technical field of control of engines. The gear shifting prompting method comprises the following steps: (1) at least collecting speed, rotating speed, engine load rate and gear information of a current vehicle; and (2) judging the engine load rate and executing the following steps according to the engine load rate: a, if the engine load rate is greater than a set high value, not prompting or prompting downshift; b, if the engine load rate is smaller than a set low value, promptingupshift; and c, if the engine load rate is greater than or equal to the set low value but smaller than or equal to the set high value, not prompting. By judging the engine load rate to prompt gears of the vehicle intelligent, a problem that the condition that the vehicle is short of power and potential safety hazards are easily caused as the rotating speed is limited when the vehicle needs relatively high power is avoided.

The invention discloses parallel combination arranged integration aerobic fermentation devices. Feed end lifting devices and discharge end lifting devices are arranged on feed ends and discharge ends of the integration aerobic fermentation devices respectively, more than two sets of the integration aerobic fermentation devices are arranged in a parallel mode, and the feed ends and discharge ends of each set of fermentation devices share one set of feed end lifting device and discharge end lifting device respectively; the feed end lifting devices are arranged on the feed end transfer trolleys, the discharge end lifting devices are arranged on the discharge end transfer trolleys, and at least two pairs of idler wheels are arranged on the two sides of the feed end transfer trolleys and discharge end transfer trolleys; lifting device tracks used for allowing the feed end transfer trolleys and the discharge end transfer trolleys to conduct reciprocating movements between each fermentation device are arranged on the bottoms between the feed ends or the bottoms between the discharge ends of each set of the fermentation device respectively; the movements of the lifting devices are automatically controlled by electronic control systems of the devices. According to the parallel combination arranged integration aerobic fermentation devices, multiple sets of fermentation devices share the lifting devices, thus device utilization is improved and device investment is reduced.

The invention discloses a road construction safety protection device. The road construction safety protection device comprises a counterweight bottom plate, wherein a shielding vertical plate is arranged at the middle position of the top of the counterweight bottom plate; the positions between the side faces of the shielding vertical plates at the two sides are in rotary connection through hinges; guide grooves are vertically and uniformly formed in the front face of the shielding vertical plate; the outer parts of the top ends of the guide grooves are fixedly connected with collision protection mechanisms; buffering contact sheets are arranged at two sides, located on the back face of the shielding vertical plate, of the counterweight bottom plate; the counterweight bottom plate is internally provided with a stable adjusting mechanism; and the stable adjusting mechanism is in rotary connection with the bottom end of the shielding vertical plate. The invention relates to the technical field of roads. By adopting the road construction safety protection device disclosed by the invention, the bottom end part of a positioning inserting rod is inserted into the ground, so that the resistance between the device and the ground is increased and the stability of the whole device is improved.

The invention discloses an anti-corrosion spraying device for processed surfaces of logs. The anti-corrosion spraying device for the processed surfaces of the logs comprises a processing table, wherein supporting legs are fixedly mounted at four corners of the bottom of the processing table; a trapezoidal supporting foot is fixedly mounted at the bottom of each supporting leg; a guide mechanism is fixedly mounted on the left side of the top of the processing table; and a conveyor belt body is fixedly mounted in the middle of the top of the processing table. The anti-corrosion spraying device for the processed surfaces of the logs is relatively convenient to use, and can continuously process and spray logs; meanwhile, uniformity of a blending coating is improved, so that spraying precision is improved, and quality of the processed logs is effectively improved; an air purifying mechanism and a drying mechanism are matched with each other, so that inner air circulating adsorption is realized, leakage of harmful gas is effectively reduced, and life health of an operator is guaranteed; and meanwhile, air further can be heated and circulated, so that the coating on the surfaces of the logs is dried, and therefore, processing production efficiency is effectively improved.

The invention is an improved uncoiler. The uncoiler has sufficient power and is suitable for discharging of plates with various models. The uncoiler comprises a base and both ends of the base are respectively provided with screw rods; the screw rods are respectively connected with brackets at corresponding side and the brackets are respectively connected with a tapered rack by a rotating shaft; the uncoiler is characterized in that the bracket at one side is provided with a motor drive structure of the rotating shaft.

The invention discloses a top tunneling machine for long-distance tunneling and a construction method thereof. The top tunneling machine comprises a machine head, a rack, and a plurality of spiral casing devices, wherein the machine head is used for heading and drilling, and the machine head is provided with a knife disc and a main drive for driving the knife disc; the rack is provided with a maintop device for pushing the machine head; and the spiral casing devices are used for supporting and discharging slag, the main top device is connected with the fixing part of the machine head by the spiral casing devices connected successively, the spiral casing devices are connected with the machine head and main top device in a disassembly mode, and the spiral casing devices are provided with main drives independent of the knife disc and a spiral driving device to realize deslagging. According to the top tunneling machine for long-distance tunneling and the construction method thereof, the tunneling structure is arranged as the detachable sectional structure of the machine head and spiral casing devices, the spiral casing devices for discharging the slag are independent of the drive of the cutter disc, thus the tunneling distance is not limited by a power plant, and the applicable range of the tunneling length of the tunneling machine. The construction method can realize continuous extension of the top tunneling machine into the interior of the excavation part, and is suitable for long-distance tunnel construction.

The invention belongs to the technical field of construction equipment, , particularly relates to a dismounting device for a bridge construction support, in the prior art, and solves problems that when the bearing capacity of a bridge is weak, a small dismounting device cannot provide enough power to hoist a support, stability is difficult to keep in the hoisting process. The device comprises a platform, wherein a motor is fixedly mounted at the top of the platform, a first through hole is formed in the platform, a toothed plate is mounted in the first through hole in a sliding manner, the motor is fixedly sleeved with a gear, a supporting plate is fixedly mounted at the top of the platform, a second fixing rod is fixedly mounted at a top end of the supporting plate, and the second fixingrod is rotatably equipped with a rotating plate. According to the device, the rotating plate is arranged to serve as a lever, power is saved in the lifting process when the support is disassembled, the device can be used for clamping supports of different sizes through clamping plates, a movable rod is used for locking a first clamping jaw and a second clamping jaw, the support is clamped more stably, and the support is prevented from sliding and falling off.

The invention provides a paddle wheel and auxiliary pond turning device with water grass winding prevention and pond turning and climbing functions. The device comprises a pair of paddle wheels, a detachable roller device and a transfer rail. The paddle wheels located on two sides of one end of a ship body are composed of blades, gears, big and small discs. The functions of preventing water grasswinding and climbing a slope are achieved. The detachable roller device located at the other end of the ship body is composed of an idler wheel (comprising a bearing) with a rail limiting piece, a shaft, a herringbone connecting rod, a traction handle and a ship body limiting piece. Effects for supporting the ship body, limiting a rail and providing parts of a traction force are achieved, and therail installed on a dam between aquaculture ponds is composed of an overhead rack and a navigation rail and used for assisting an aquaculture workboat in pond transferring. According to the device, the aquaculture workboat can be simply transferred between adjacent ponds, and a utilization rate of the aquaculture workboat can be increased.

The invention discloses an automobile, a driving system and a control method thereof. The driving system is applied to the automobile and includes a first driving unit, a second driving unit, and a deceleration unit, wherein the deceleration unit includes coaxial first and second sun gears; the first sun gear is meshed with a first planetary gear; the second sun gear is meshed with a second planetary gear; the center distance between the first sun gear and the first planetary gear is equal to the center distance between the second sun gear and the second planetary gear; the first planetary gear and the second planetary gear are connected to the same planet carrier; the second planetary gear is also meshed with a fixed internal gear ring; the first driving shaft of the first driving unit isconnected to the first sun gear; the second driving shaft of the second driving unit is connected to the second sun gear; and the planet carrier is used for output. The driving system provided by thepresent invention is compact in structure, can be conveniently arranged on the entire vehicle, and has two driving units which can provide great power.

The invention provides a speed variator and an automobile comprising the speed variator. The speed variator is of a double-motor structure and comprises a first motor, a second motor and a speed control system, wherein the first motor and the second motor are arranged in parallel, the speed control system is arranged on one sides of the second motor and the first motor, through cooperation of thefirst motor, the second motor and the speed control system, five working gear modes can be achieved, compared with the mode that multi-gear control is achieved through a single motor, and the requirement for motor performance can be greatly lowered, and cost can be effectively controlled; and the different working gear modes can be selected according to different working conditions, so that the motor can efficiently operate under the whole working condition, the double motors are adopted for power output, when one of the motors in a system breaks down, the other motor can work independently, and the redundancy of automobile running is improved.

The invention discloses an intelligent management system for a power supply of vehicle-mounted equipment. The intelligent management system comprises a battery power acquisition module, a charging station information acquisition module, a vehicle position acquisition module, a vehicle speed acquisition module, an equipment average power consumption acquisition module, a data receiving module, a data processing module, a main control module, a mode setting module and an information transmitting module; the battery power acquisition module is used for acquiring the rest power information of a battery of a vehicle; the charging station information acquisition module is used for acquiring the position information of a charging station; the vehicle position acquisition module is used for acquiring the position information of the vehicle; the vehicle speed acquisition module is used for acquiring the vehicle speed information of the vehicle; and the equipment average power consumption acquisition module is used for acquiring the power consumption of the vehicle-mounted equipment in preset time length. The intelligent management system disclosed by the invention has the beneficial effectsof being preferably applicable to new energy automobiles, having the function of planning a nearest charging station line and preventing the vehicle from being short of power due to insufficient power.

The invention discloses a temperature difference power cooling tower based on a screw expander. The temperature difference power cooling tower comprises a cooling tower body, fan blades, a water tank, a spraying device, an evaporator, a driving device, a condenser, a pump and a power source; the driving device comprises a hybrid power box and the screw expander, the power source is connected to a first input shaft of the hybrid power box, the screw expander is connected to a second input shaft of the hybrid power box, and an output shaft of the hybrid power box is connected to the fan blades; the evaporator is installed in a water inlet pipe, an outlet of the evaporator is connected to a steam inlet of the screw expander through a first pipeline, an outlet of the screw expander is connected to the condenser through a second pipeline, the condenser is connected to an inlet of the evaporator through a third pipeline, the pump is arranged on the third pipeline, and the water inlet pipe is connected to a hot water end. According to the temperature difference power cooling tower, discharged hot water of the cooling tower can be recycled, so that the energy is saved; through dual-power driving, the cooling efficiency is improved, and the problem that power is insufficient due to a single power source can be avoided.

The invention provides a free piston linear generator matching optimization method based on an engine, and belongs to a new energy automobile range extender, the method comprises the following steps: pre-selecting an engine with rated power P1, linear motor power P2 and mover mass m2, P2 = P1; determining the total mass m = m1 + m2 of the system, and determining the output power P actual of the system according to the total mass m; determining whether the following condition is satisfied: |(Pactual-P1)/P1|<=N; if (Pactual-P1)/P1<(-N), reducing the mover mass m2 of the motor, determining the output power P'actual of the system under the optimal mover total mass, reselecting the engine according to the P 'actual, matching new engine power P' 1, and repeating the process; if (P actual-P1)/P1>N, increasing the rotor mass m2 of the motor, determining the system output power P'actual under the optimal rotor total mass, reselecting the engine according to the P 'actual, matching new engine power P' 1, and then repeating the process.

The invention relates to the technical field of electrical cabinets, and particularly discloses a drawer type switch cabinet which comprises a cabinet body, a rear bottom plate is arranged in the cabinet body, and a drawer is arranged on one side of the rear bottom plate. An electric push rod is arranged on the rear bottom plate, the drawer comprises a rear side plate, a rear side plate through hole is formed in the rear side plate, a first elastic piece mounting cavity is formed in the rear side plate, a first arc-shaped groove is formed in the electric push rod, a first elastic piece is arranged in the first elastic piece mounting cavity, and a second arc-shaped groove is formed in the lower end of the first elastic piece; a baffle is connected to the rear bottom plate, and the end, extending out of the rear side plate, of the first elastic piece is provided with an inclined face used for being matched with the baffle to enable the second arc-shaped groove to abut against the first arc-shaped groove. According to the drawer type switch cabinet, circuit connection and disconnection between the drawer and the rear bottom plate are conveniently and easily achieved, and the stabilityof circuit connection and disconnection between the drawer and the rear bottom plate is improved; and meanwhile, the drawer is locked, and the cost for producing and manufacturing the cabinet body isreduced.