33results about How to "Reduce fatigue loss" patented technology

The invention discloses a rare earth alloy material crusher. The rare earth alloy material crusher is characterized in that two driven wheels are arranged on two sides of a driving wheel respectively, the driving wheel and the driven wheels are in transmission connection through a belt, and a left crushing rod and a right crushing rod are arranged in the two driven wheels respectively in a sleeving manner; one end of the left crushing rod penetrates through a left filter screen and a guiding plate in sequence to extend into the bottom of a left crushing box, left crushing blades are connected with the periphery of the left crushing rod, a discharge port is formed in one side of the left crushing box and located above one side of the guiding plate, and the left crushing box and a right crushing box are communicated through the discharge port; the bottom of the left crushing rod is sleeved with a first bevel gear which is meshed with a second bevel gear, and a rotating shaft is sleeved with the second bevel gear; a right filter screen is arranged in the right crushing box and located below a right stirring rod, right crushing blades are connected with the periphery of the right stirring rod, and spiral blades are connected with the periphery of the rotating shaft located in the right crushing box. The rare earth alloy material crusher is ingenious in design, and crushing efficiency and crushing effect are effectively improved.

A rotor craft able to vertically take off and land is composed of main body, mainshaft, rotor fixed to mainshaft and with the adjustable torsional blades, horizontally driving clutch, power system, rear fin and propeller for horizontally driving. Its advantages are flexibly taking-off and landing, high safety and low noise.

The invention discloses a wind turbine generator system optimal start control method. According to the method, an AR(p) model of a wind velocity series is established by utilizing a time series analysis method, a predicted value of a wind velocity in 10min in the future is obtained by utilizing a kalman filtering algorithm, and then an average wind velocity in first 10min and a predicted wind velocity in 10min are combined to be used as a basis of executing a fan starting action, so that power generation capacity after a fan is started is sufficiently ensured, unreasonable start-up of the fan in low-wind-velocity seasons is reduced, a service life of equipment is prolonged, an availability ratio of the equipment is improved, power self-consumption is reduced, and electric energy production is improved.

The invention relates to an oil-well pump capable of direct flushing. The oil-well pump is underground equipment which has the effects of sand prevention, gas prevention, wax prevention and high pump efficiency and is applied to oil exploration industry. In the oil-well pump, an upper plunger piston and a lower plunger piston are equipped with sand prevention slots, can send the sands deposited in the sand prevention slots to the underside of the pump to realize sand prevention. When the plunger pistons fall to a pump-bumping position, oil pipes above and below the pump are in communicated state by a pump cavity, thereby realizing the function of direct flushing. In the oil-well pump, an oil inlet valve can be opened easily under the hydraulic feedback action, thereby increasing the fullness coefficient, reducing the bend of a sucker rod, increasing the effective stroke of the pump, preventing air lock, reducing the fatigue loss of the sucker rod, and the oil-well pump has the functions and the characteristics of gas prevention and high pump efficiency.

The invention discloses a transverse and longitudinal integrated non-power framework device with temperature-measurable axle boxes, and belongs to the field of railway vehicle framework devices. The transverse and longitudinal integrated non-power framework device comprises a transverse and longitudinal integrated interconnection framework and four annular vibration reduction axle boxes. The transverse and longitudinal integrated interconnection framework comprises two transverse and longitudinal integrated frameworks, and each transverse and longitudinal integrated framework comprises an integrated side beam and an integrated cross beam which are integrally formed. Each integrated side beam comprises a side beam middle section which serves as two bird wing connecting parts and is locatedat a lower position, and two bird-wing-shaped side beam cantilever sections which are symmetrically and fixedly connected to the two ends of the side beam middle section. On the premise that the installation position and the vibration reduction index of a primary suspension axle box device are guaranteed, the overall transverse width size and the turning radius of the bogie are effectively reduced, the curve passing capacity of the bogie is further improved, the vibration influence degree of the bogie on a vehicle body is reduced to the minimum, the balance stability and comfort of the vehiclebody are enhanced, the fatigue loss of the overall structure is effectively reduced, and the overall service life of the bogie and the vehicle body is greatly prolonged.

The invention discloses a control method for triggering a variable pitch action instruction of a wind driven generator according to a mean value. According to a variable pitch control policy for the case that the wind speed fluctuates up and down around the rated wind speed of the wind driven generator, when a variable pitch system detects that the rotating speed, the output power or the wind speed of the generator is higher than the rated value, the variable pitch system starts acting to adjust the pitch angle of a fan paddle and reduce the fan capture power so as to keep the output power of the wind driven generator stable. The past control methods only concentrate on stable control on the output power; however, due to the randomness and instability of wind, the wind speed is possible to fluctuate up and down around the rated wind speed of the wind driven generator and the rotating speed and the power of the wind driven generator also fluctuate up and down around the rated values, and consequently, the variable pitch system is leaded to frequent actions to result in fatigue loss of the variable pitch system. The invention provides a wind driven generator variable pitch control method base on a mean value algorithm, and the control method is capable of greatly improving the action smoothness of the variable pitch system, reducing the fatigue loss and improving the reliability of the system.

The invention discloses a dry indirect-cooling-storage type peak cooling system of a thermal power generating unit. The dry indirect-cooling-storage type peak cooling system comprises a turbine low pressure cylinder, wherein the lower end of the turbine low pressure cylinder is connected with an exhaust steam pipe matched with the turbine low pressure cylinder, the exhaust steam pipe is connected with a jet-type condenser through a butterfly control valve and is connected with a condensing water tank through a condensing water pump, and another end of the exhaust steam pipe is connected with an air cooled condenser; the exhaust steam pipe is provided with a stem dispensing pipeline of the air cooled condenser on which a cooling and mixing device is arranged; the cooling and mixing device comprises a cooling water delivery pipeline and a plurality of cooling water nozzles formed in the cooling water delivery pipeline, the air cooled condenser is connected with a circulating water collecting tank through a condensed water tank, and the circulating water collecting tank is connected in a cooling chamber in the cooling system through a water taking pump; the cooling chamber is respectively connected with a dry air forced ventilation cooling system and a voltage compression refrigerating system, the cooling chamber is connected with the jet-type condenser through the circulating water collecting tank, and the air cooled condenser is connected to a water circulating vacuum pump in an air extractor and is sequentially connected with a gas water separator and a cooler; one end of the cooler is connected with a cooling chamber, and the other end of the cooler is connected with a circulating water collection tank.

The invention relates to a two-way energy storage and coal consumption reduction system for a thermal power generating unit. The two-way energy storage and coal consumption reduction system comprises a jet condenser. The top end of the jet condenser communicates with an exhaust pipeline. The bottom of the jet condenser communicates with a condensed water tank and a heat storage tank. The heat storage tank communicates with a regenerative system of a steam turbine. The bottom of the condensed water tank communicates with a cold storage tank. The cold storage tank is connected with multiple nozzles arranged in the jet condenser through a pipeline sequentially provided with a circulating cooling water pump, a third regulating valve and a sixth regulating valve. The cold storage tank communicates with a cooling and mixing device communicating with the exhaust pipeline through another pipeline sequentially provided with the circulating cooling water pump, a third regulating valve and a seventh regulating valve. The two-way energy storage and coal consumption reduction system has the beneficial effects that the design is reasonable, the pressure in the air-cooling condenser is lowered effectively, the vacuum of the unit in the operating process is improved, the operating economy of the unit is improved, the operating safety and reliability of a steam turbine unit are improved, the fatigue loss of a steam turbine rotor is reduced, the service life of the rotor is prolonged, and on the premise of meeting the safe operation of the unit, energy saving and emission reduction are truly achieved.

The invention discloses a detachable electric lifting module and belongs to the field of lifters. The detachable electric lifting module comprises a carrying module used for providing the weight of anobject and having the overweight warning function, a lifting module used for driving the carrying module to rise and drop, a fixed module used for being fixed to a mobile device and an energy storagemodule used for storing hydraulic energy generated by the object during dropping and reducing the bearing capacity of the lifting module. The detachable electric lifting module is provided with a double-lifting mechanism, is quick and accurate in rising and dropping and free of vibration. The wear rate of a driving component is low. Moreover, the detachable electric lifting module can improve themechanical efficiency or the energy utilization rate and has the weighing and overweight warning functions.

A novel rotary-wing aircraft is composed of main body, mainshaft, rotary wings, horizontal drive clutch, power system, rear wings and horizontal drive propeller. The rotary wings fixed to top end of mainshaft are adjustable-pitch torsional blades and used for vertical taking off or landing. Said horizontal drive propeller is used for horizontal flying. Its advantages are high safety and efficiency, and low cost and noise.

The invention discloses a power bogie based on a novel motor suspension structure and an upper swing bolster, and belongs to the field of railway vehicle power bogie devices. The power bogie comprises a framework, a wheel set device composed of wheels and axles, an easy-to-withdraw shaft type gearbox, a side beam single-point suspension type motor, the integrated vibration reduction type swing bolster and a secondary suspension system. On the premise that the mounting position and the vibration reduction index of the primary suspension axle box device are ensured, the transverse width size and the turning radius of the whole bogie are effectively reduced, the curve passing capacity of the bogie is further improved, and the annular vibration reduction axle box is convenient to mount, dismount and maintain; and after four fastening bolts are respectively dismounted, the side beam single-point suspension type motor can be directly and independently dismounted from the lower part of the vehicle body through the maintenance trench.

The invention discloses an axle box built-in side beam based on a novel primary spring seat, and belongs to the field of railway vehicle bogie side beam devices. The axle box built-in side beam comprises two primary steel springs, two primary vertical shock absorbers, a forged piece side beam device and two wheel set built-in primary suspension axle box devices, and the forged piece side beam device comprises a forged piece side beam lower cover plate, a forged piece side beam upper cover plate, a central single vertical plate, two forged piece cap cylinders, two forged piece vertical shock absorber hanging seats, two forged piece brake hanging seats, two oblique transition connecting seats, two forged piece cross beam pipe connecting seats and a plurality of forged piece milling residualrib plates, which are integrally formed. One corresponding forged piece cross beam pipe connecting seat on each of two forged piece side beam devices is connected with corresponding shell side beam connecting columns at the two sides of a conventional cross beam pipe or a longitudinal motor shell through bolts, so the mounting efficiency is improved, the influence of welding deformation on the framework structure is avoided, the outline size and the turning radius of the framework are remarkably reduced, and the curve passing capacity of the framework is improved.

The invention discloses a transverse and longitudinal integrated power bogie with axle boxes capable of measuring temperature, and belongs to the field of railway vehicle power bogie devices. The transverse and longitudinal integrated power bogie comprises a transverse and longitudinal integrated interconnection framework, four annular vibration reduction axle boxes, an easy-shaft-withdrawing gearbox and a side beam single-point suspension type motor. The transverse and longitudinal integrated interconnection framework comprises two transverse and longitudinal integrated frameworks, and each transverse and longitudinal integrated framework comprises an integrated side beam and an integrated cross beam which are integrally formed; and the integrated side beam comprises a side beam middle section serving as two wing connecting parts and located at a low position and two wing-shaped side beam cantilever sections symmetrically and fixedly connected to the two ends of the side beam middle section. According to the invention, enough operation space is reserved for disassembly and maintenance of a gearbox and a motor, and the assembly and disassembly scheme of the motor is greatly optimized; and after four fastening bolts of the motor flexible suspension rubber nodes and the side beam end motor suspension rubber nodes are dismantled respectively, the side beam single-point suspension type motor can be directly and independently dismantled from the lower portion of a vehicle body through and overhaul trench, and the motor overhaul convenience is greatly improved.

The invention provides a pre-filled catheter flusher. The pre-filled catheter flusher comprises a liquid storage container 1 which is at least partially deformable, wherein the liquid storage container 1 is provided with an injection port 10, and one end of the injection port 10 of the liquid storage container 1 is provided with a pressure applying device 2 capable of closing the injection port 10 from the outside of the liquid storage container 1; when the pressure of the flushing fluid reaches or is more than a preset value due to deformation of the liquid storage container 1, the flushing fluid overcomes the resistance applied to the injection port 10 by the pressure applying device 2 to achieve flushing. According to the pre-filled catheter flusher, the flushing fluid can be prevented from flowing back to the fluid storage inner cavity 11, the pressure applying device 2 does not make contact with the flushing fluid, so that the requirement for materials of the pre-filled catheter flusher is relatively low, the product manufacturing cost is reduced, the product production process is simplified, and use is safe and reliable.

The invention discloses a power variable stay cable permanent magnet eddy current retarder and belongs to the field of bridge structural vibration control. The power variable stay cable permanent magnet eddy current retarder comprises a rigid shaft, a second linear movement mechanism, a fixed disc, a conductor disc, a driving gear, at least three driven gears of different radiuses, and at least one pair of permanent magnets opposite in magnetic poles; one end of the rigid shaft is connected with the second linear movement mechanism, and the other end of the rigid shaft sequentially penetratesthrough the fixed disc, the conductor disc and the driven gears; the fixed disc is fixed relative to the rigid shaft, the conductor disc is fixed relative to the driven gears, and the driven gears areconnected with the rigid shaft through bearings; the permanent magnets are arranged on the surfaces of the fixed disc. According to the power variable stay cable permanent magnet eddy current retarder, the conductor disc moves inside the magnetic field of the permanent magnets to cut magnetic lines to produce eddy current damping and accordingly to dissipate vibrating energy of a stay cable and inhibit vibration of the stay cable; through engagement between the driven gears different in radius and the driving gear, the energy consumption power can be adjust, high adaptability to external loadcan be achieved, and the power variable stay cable permanent magnet eddy current retarder can be in an optimum load operating sate for a long time.

The invention discloses a side beam end cantilever with a temperature-measurable axle box, and belongs to the field of railway vehicle bogie side beam end devices. The side beam end cantilever comprises a wing-shaped side beam cantilever section, a temperature sensor and an annular vibration reduction axle box. The annular vibration reduction axle box comprises a vibration reduction rubber ring, an axle bearing and an axle box positioning and temperature measurement heat conduction sheath. Vertical and longitudinal torques generated by side rolling motion of a vehicle body can be fully released, all vibrations such as transverse, longitudinal, vertical and snaking torsional pendulum and side rolling generated by a motor and a gear box are effectively eliminated, a more ideal anti-side-rolling balance effect is achieved, the vibration influence degree of the bogie on the vehicle body is reduced to the minimum, a balance stability and comfort of a vehicle body are enhanced, fatigue loss of the whole structure is effectively reduced, the whole service life of the bogie and the vehicle body is greatly prolonged, the production cost is reduced, and the economic value is high.

The invention provides an energy-saving pumping unit with two horse heads. The energy-saving pumping unit with the two horse heads comprises a base, a support, a walking beam, the front horse head, the rear horse head and a speed controller, wherein the support is fixedly arranged on the base, the walking beam is arranged on the top of the support, one end of the walking beam is connected with the front horse head, a wind power generation device is arranged on the top of the walking beam and is connected with a second motor through a PLC, an adjustment hole is formed in the middle of the walking beam, the adjustment hole is connected with a balance block through an adjustment rod, and the balance block is connected with the second motor. According to the energy-saving pumping unit with the two horse heads, the adjustment hole is connected with the balance block through the adjustment rod, the balance block is connected with the second motor, and thus the stability of the pumping unit is improved; the second motor is connected with the wind power generation device, and thus production cost is reduced. The energy-saving pumping unit with the two horse heads has the advantages that the oil production efficiency is high, the fatigue loss of the pumping unit is reduced, the mechanical efficiency is improved, and production cost is reduced.

The invention discloses a wind turbine generator system optimal start control method. According to the method, an AR(p) model of a wind velocity series is established by utilizing a time series analysis method, a predicted value of a wind velocity in 10min in the future is obtained by utilizing a kalman filtering algorithm, and then an average wind velocity in first 10min and a predicted wind velocity in 10min are combined to be used as a basis of executing a fan starting action, so that power generation capacity after a fan is started is sufficiently ensured, unreasonable start-up of the fan in low-wind-velocity seasons is reduced, a service life of equipment is prolonged, an availability ratio of the equipment is improved, power self-consumption is reduced, and electric energy production is improved.

The invention discloses a flywheel, and belongs to the technical field of flywheel energy storage. The flywheel is designed for solving the problem that a flywheel hub is prone to fatigue damage. Theflywheel comprises a polygonal hub and a flywheel outer ring, and the flywheel outer ring is arranged around the polygonal hub and connected with the polygonal hub. The flywheel outer ring of the flywheel can be connected with top points of the polygonal hub through fasteners, so that the flywheel outer ring can be fixed to the polygonal hub with very small pre-tightening force; and when the flywheel rotates, the part, between two connecting points of the flywheel outer ring and the polygonal hub, of the flywheel outer ring is separated from the polygonal hub along with centrifugal force, so that the fatigue loss of the hub is reduced, and the service life of the flywheel is prolonged advantageously.

The invention relates to a micro-driver in the technical field of MEMS, and belongs to a segmented-type double-layer membrane electric heating drive MEMS switch with a compliant mechanism. The switchcomprises a substrate, a segmented-type double-layer membrane electric heating drive unit, a base, and an electric contact unit. The double-layer membrane electric heating drive unit, the base and theelectric contact unit are located on a substrate, and the double-layer membrane electric heating drive unit is fixed on the base. The base is fixedly connected with the substrate, and the electric contact unit is disposed above the segmented-type double-layer membrane electric heating drive unit. The electric contact unit comprises a static contact point, a V-shaped support beam, a flexible spring, and an arc-shaped electric contact mass block. The V-shaped support beam is fixed above the segmented-type double-layer membrane electric heating drive unit, and the arc-shaped electric contact mass block is connected to the V-shaped support beam through the flexible spring. The static contact point is disposed above the arc-shaped electric contact mass block, and the static contact point cooperates with the arc-shaped electric contact mass block, and is connected with a peripheral circuit.

The invention discloses a packaging device for a silicon microphone chip, each station is compactly installed, reduces the waste of site space, does not need to be manually transferred between each station, reduces labor intensity, and improves the overall production of the production line efficiency. The upper end of the workbench of the present invention is provided with a first runner and a second runner side by side, a baking device is arranged between the first runner and the second runner, and the workbench is provided with a feeding device, a glue dispensing device and a first manipulator, The workbench is also equipped with a second manipulator, tin drawing device, AOI detection device and unloading device; both the first flow channel and the second flow channel include connecting columns and two limit plates arranged side by side, and the inner sides of the two limit plates The wall is provided with a belt assembly, the upper ends of the two belt assemblies are provided with a carriage, the glue dispensing device and the tin painting device are provided below a clamping unit, and the front and rear sides of the clamping unit are respectively provided with limit assemblies.

The invention relates to a micro-driver in the technical field of MEMS, and belongs to a segmented-type double-layer membrane electric heating drive MEMS switch with a compliant mechanism. The switchcomprises a substrate, a segmented-type double-layer membrane electric heating drive unit, a base, and an electric contact unit. The double-layer membrane electric heating drive unit, the base and theelectric contact unit are located on a substrate, and the double-layer membrane electric heating drive unit is fixed on the base. The base is fixedly connected with the substrate, and the electric contact unit is disposed above the segmented-type double-layer membrane electric heating drive unit. The electric contact unit comprises a static contact point, a V-shaped support beam, a flexible spring, and an arc-shaped electric contact mass block. The V-shaped support beam is fixed above the segmented-type double-layer membrane electric heating drive unit, and the arc-shaped electric contact mass block is connected to the V-shaped support beam through the flexible spring. The static contact point is disposed above the arc-shaped electric contact mass block, and the static contact point cooperates with the arc-shaped electric contact mass block, and is connected with a peripheral circuit.

The invention relates to an oil-well pump capable of direct flushing. The oil-well pump is underground equipment which has the effects of sand prevention, gas prevention, wax prevention and high pump efficiency and is applied to oil exploration industry. In the oil-well pump, an upper plunger piston and a lower plunger piston are equipped with sand prevention slots, can send the sands deposited in the sand prevention slots to the underside of the pump to realize sand prevention. When the plunger pistons fall to a pump-bumping position, oil pipes above and below the pump are in communicated state by a pump cavity, thereby realizing the function of direct flushing. In the oil-well pump, an oil inlet valve can be opened easily under the hydraulic feedback action, thereby increasing the fullness coefficient, reducing the bend of a sucker rod, increasing the effective stroke of the pump, preventing air lock, reducing the fatigue loss of the sucker rod, and the oil-well pump has the functions and the characteristics of gas prevention and high pump efficiency.

The invention discloses a bogie based on an easy-to-withdraw shaft type gear box and a side beam single-point suspension type motor, and belongs to the field of railway vehicle power bogie devices. The bogie comprises a framework, a wheel set device composed of wheels and axles, four annular vibration reduction shaft boxes, the easy-to-withdraw shaft type gear box, the side beam single-point suspension type motor, an integrated vibration reduction type swing bolster and a secondary suspension system. On the premise that the mounting position and the vibration reduction index of the primary suspension axle box device are ensured, the transverse width size and the turning radius of the whole bogie are effectively reduced, the curve passing capacity of the bogie is further improved, and the annular vibration reduction axle box is convenient to mount, dismount and maintain. After the four fastening bolts are respectively dismounted, the side beam single-point suspension type motor can be directly and independently dismounted from the lower part of the vehicle body through the maintenance trench.

The invention discloses a detachable electric lifting module and belongs to the field of lifters. The detachable electric lifting module comprises a carrying module used for providing the weight of anobject and having the overweight warning function, a lifting module used for driving the carrying module to rise and drop, a fixed module used for being fixed to a mobile device and an energy storagemodule used for storing hydraulic energy generated by the object during dropping and reducing the bearing capacity of the lifting module. The detachable electric lifting module is provided with a double-lifting mechanism, is quick and accurate in rising and dropping and free of vibration. The wear rate of a driving component is low. Moreover, the detachable electric lifting module can improve themechanical efficiency or the energy utilization rate and has the weighing and overweight warning functions.

The invention provides a shock absorbing shaft seat device for motor suspension and belongs to the field of a suspending device for a motor of a rail vehicle. The shock absorbing shaft seat device comprises a rubber node, an eccentric wheel axle sleeve seat, a vertical bearing lifting seat and a vertical shock absorbing pin mechanism, wherein the rubber node acts as a horizontal elastic shaft component; and the eccentric wheel axle sleeve seat comprises an axle sleeve, a bearing lifting seat connecting plate and a rubber node shaft sleeve which are formed integrally. The shock absorbing shaftseat device provided by the invention makes a motor housing base plate obtain symmetric stability mechanically structurally, makes the stress distribution between an axle and the motor housing base plate be more reasonable, also achieves the effects of optimizing the structural balance performance, reducing fatigue losses of materials and prolonging the service life of equipment, and makes the parameter range of the value of an air gap from a linear motor suspended at a special linear motor lifting seat to a sensing plate on a special rail for the linear motor completely meet the optimal design requirements of the linear motor.

The invention provides a shock absorbing shaft seat device for motor suspension and belongs to the field of a suspending device for a motor of a rail vehicle. The shock absorbing shaft seat device comprises a rubber node, an eccentric wheel axle sleeve seat, a vertical bearing lifting seat and a vertical shock absorbing pin mechanism, wherein the rubber node acts as a horizontal elastic shaft component; and the eccentric wheel axle sleeve seat comprises an axle sleeve, a bearing lifting seat connecting plate and a rubber node shaft sleeve which are formed integrally. The shock absorbing shaftseat device provided by the invention makes a motor housing base plate obtain symmetric stability mechanically structurally, makes the stress distribution between an axle and the motor housing base plate be more reasonable, also achieves the effects of optimizing the structural balance performance, reducing fatigue losses of materials and prolonging the service life of equipment, and makes the parameter range of the value of an air gap from a linear motor suspended at a special linear motor lifting seat to a sensing plate on a special rail for the linear motor completely meet the optimal design requirements of the linear motor.