266results about How to "Meet the needs of different working conditions" patented technology

The invention relates to a magnetic coupling, in particular to a remote intelligent speed control axial asynchronous magnetic coupling and a speed regulating method. The meshing area between a permanent magnet and a conductor can be well adjusted by taking a remote intelligent controller to drive and control a motor to rotate, and in such way, the volume of the output torque is changed and precise speed change is realized. According to the invention, the application range of the magnetic coupling is expanded. The remote intelligent speed control axial asynchronous magnetic coupling is suitable for working under the situations with violent vibration, dust and impurities and other harsh conditions. The remote intelligent speed control axial asynchronous magnetic coupling can be widely used in the petrochemical industry, metallurgical industry, mining industry and the like.

The invention discloses a surface-hardening treatment method of sealing pairs and friction pairs of titanium and titanium alloy ball valves. The sealing pairs are related sealing parts at all sealing positions in a valve, a ball and a valve base, and the friction pairs are related friction parts at all transmission connection positions in the valve, the ball and the valve base. The surface-hardening treatment method relates to chemical heat treatment and a vapor deposition hard coating. The chemical heat treatment and the vapor deposition hard coating are simultaneously used for the sealing pairs and the friction pairs of titanium and titanium alloy ball valves so that the problem that surface hardness of the titanium and titanium alloy ball valves treated by a single chemical heat treatment process is low. Based on the chemical heat treatment, the vapor deposition hard coating is adopted so that a hardness difference of a chemical heat treatment infiltrated layer is reduced. The vapor deposition hard coating further improves bonding strength of the chemical heat treatment infiltrated layer and improves surface hardness of the titanium and titanium alloy ball valves. Even if the vapor deposition hard coating is damaged in actual use, a hardened layer formed from the chemical heat treatment infiltrated layer still has a protection effect so that dual protection is realized.

The invention discloses an air inlet throttle control method and an air inlet throttle control device. The air inlet throttle control method comprises the following steps of: setting a discharge temperature Tset and an air inlet mass flow rate mset; when an engine is in a low-speed and low-load working condition and the actual discharge temperature Tact is lower than the set discharge temperature Tset, adopting a closed-loop control mode, and regulating aperture of an air inlet throttle by taking the set discharge temperature Tset as a control target; when the engine is in a high-speed and high-load working condition and the actual air inlet mass flow rate mact is higher than the set air inlet mass flow rate mset, adopting a closed-loop control mode, and regulating the aperture of the air inlet throttle by taking the set air inlet mass flow rate mset as the control target; and when the engine is in other working conditions, causing the air inlet throttle to be in an open-loop control mode. By adopting the air inlet throttle control method and the air inlet throttle control device, EGR (exhaust gas recirculation) rate and temperature can be respectively accurately controlled according to the working condition of the engine, so that performance of the engine is obviously improved.

The invention discloses a bionic snake-like robot and a method, and belongs to the field of bionic robots. The snake-like robot comprises two parts including a drive box (1) and a multi-joint snake-like arm (2), wherein the drive box (1) is composed of drive motors, winches and supporting plates, and the multi-joint snake-like arm (2) is composed of joint units, universal joins and steel wire ropes. The series-connection structure design of the universal joints (9) is adopted in various joint units (8) of the bionic snake-like robot, and the joint units (8) are driven through the steel wire ropes (10) evenly distributed along the circumference; and the structure design that steel wire rope through holes are evenly distributed in a parse manner in the sector direction along the circumference, and wiring is conducted is adopted in the joint units (8). The bionic snake-like robot has the characteristics that the structure is simple, the redundancy freedom degree is high, flexibility is good, and the narrow space obstacle avoiding capability is high.

The invention provides a local cabin section model for a ship impact resistance test, which is a box body formed by a dual-layer bottom compartment, a ballast compartment and a buoyancy reserve compartment. The shape of the cross section of the box body is as same as the shape of an area with length being 5-7 times of frame space along the length direction of a ship to be tested, width being halfof the width of the ship along the width direction of the ship and height being above 3-5m from the bottom of the ship up to the inner bottom along a vertical direction. The dual-layer bottom compartment is arranged at the bottom. The buoyancy reserve compartment is arranged right above the dual-layer bottom compartment. The ballast compartment consists of two independent watertight compartments,which are respectively arranged at the front and the rear of the dual-layer bottom compartment and the buoyancy reserve compartment. By designing a 1:1 actual-size typical cabin section model to carry out relevant impact resistance tests to research the local strength of a ship structure, the inaccuracy caused by a too simplified structure during a local grillage model test can be effectively remedied, the defects of high expense, difficult implementation and the like of a real ship test can be avoided and the problem that a scale model test is difficult to be converted into a similar test ofa real ship can be solved at the same time.

The invention discloses a chromium-free high boron iron-based casting alloy and a preparation method. The high boron iron-based alloy comprises the following chemical components in percentage by weight: 0.2 to 1.0 percent of C, 1.0 to 4.5 percent of B, 0.20 to 0.70 percent of Si, 0.20 to 0.8 percent of Mn, less than 0.1 percent of S, less than 0.1 percent of P and the balance of Fe and inevitable trace impurities. The alloy is produced by an electric induction furnace, and smelted and cast and then is subjected to heat treatment and used. The alloy does not contain chromium and has a low price and high comprehensive performance, and the alloy performance can be controlled in a large range by controlling the proportions of boron and carbon so as to meet the requirement of different working conditions. The method has the advantages of low production cost, simple process, and high operability.

The invention relates to a pneumatic spring vibration isolator of an air flotation type forward and backward swing concatenation mechanism based on a ball head connecting rod, which belongs to the ultra-precise measurement and processing field. An inner cylinder is assembled in an outer cylinder of the vibration isolator, an air bag for an air spring is sleeved outside the upper end of the inner cylinder, a support rod is arranged in the chamber of the inner cylinder after penetrating through an annular cover plate, and the upper end and the lower end of a diagonal cable wire are respectively fixed with the annular cover plate and the support rod to form a single swing mechanism; an upper ball seat and a lower ball seat are respectively arranged on the lower end of the support rod and the upper end surface of the air spring, and the upper end and the lower end of the ball head connecting rod are respectively arranged in the upper ball seat and the lower ball seat to form a reversed swing mechanism; and the single swing mechanism and the reversed swing mechanism form the forward and backward swing concatenation mechanism. The air spring is used as a reversed swing spring, and the rigidity of the reversed swing spring can be changed by continuously adjusting the internal pressure of the air spring, thereby the real time adjustment of the rigidity of the forward and backward swing concatenation mechanism can be realized to meet requirements of different operating conditions. The pneumatic spring vibration isolator is introduced by the forward and backward swing concatenation mechanism, which not only enhances the comprehensive vibration isolation performance of the isolator, but also overcomes many disadvantages of other types of isolators.

In the prior art, on the market, in order to solve the paint spray mist and the waste gas treatment, the traditional process is mostly used, and comprises: a dust-free paint mist collecting pre-chamber constructed from a rock wool plate, a paint spray water curtain cabinet, a ventilation connecting pipeline, a water washing tower dust removal device, a ventilation connecting pipeline, a waste gaspurification device (active carbon adsorption concentrating device, photocatalytic waste gas purification device, low-temperature plasma waste gas purification device and the like), a centrifugal induced draft fan, and 15-m high-altitude discharge. The invention discloses a paint spray mist dust removing and waste gas purification integrated machine, wherein paint mist collecting, paint mist dustremoval and purification, paint spray waste gas purification, circulating water treatment, fan built-in function and other functions are integrated into the one device, and the technology belongs to the environmental protection field, and is used in various paint spraying and coating industries.

The invention discloses a wheel hub motor with multiple inner motors connected in parallel, and the wheel hub motor can be directly connected with wheels of an electric car. The wheel hub motor with the multiple inner motors connected in parallel comprises a motor shaft and an outer rotor supported on the motor shaft, wherein the multiple inner motors are fixedly arranged inside the outer rotor; rotor shafts of the inner motors are distributed in the circumference of the outer rotor at equal intervals; the rotor shafts of all the inner motors are parallel with the motor shaft; the rotor shaft of each inner motor is fixedly provided with a gear; all the gears are meshed with an inner gear ring; the inner gear ring is fixedly connected with the outer rotor. The mode that the multiple inner motors are connected in parallel is adopted, a gear reducing mechanism is matched at the same time, when each inner motor works, the gear reducing mechanism drives the outer rotor to rotate, the rotation speed of the inner motors can be reduced, and the torque of the wheel hub motor is improved; meanwhile, the number of the inner motors which work simultaneously is controllable, so that the wheel hub motor meets the requirement of the electric car under different working conditions, and the dynamic property and the economical efficiency of the electric car are improved.

The invention discloses a stepless adjustable pipe supporting device which comprises a support, a telescopic assembly and a supporting assembly, wherein the telescopic assembly and the supporting assembly are installed on the support. The telescopic assembly comprises an outer cylinder, an inner cylinder and a telescopic cylinder. The upper portion of the inner cylinder is sleeved with the lower portion of the telescopic cylinder in a sliding mode. The telescopic cylinder is sleeved with the upper portion of the outer cylinder through a thread. The inner cylinder is sleeved with the lower portion of the outer cylinder through a rotating device. The upper portion of the telescopic cylinder is connected with a supporting assembly. The supporting assembly comprises a connecting block and an adjustable frame, wherein the lower portion of the adjustable frame is hinged to the connecting block. The adjustable frame is provided with two sets of supporting rods which are used for supporting pipes. The supporting rods can be opened and closed oppositely. According to the stepless adjustable pipe supporting device, continuous adjustment of the supporting height can be achieved, meanwhile, pipe supporting operation of different pipe diameters can be achieved, the operation flexibility can be effectively improved, and the operation efficiency is improved.

The invention provides a torque-withstanding type double-acting releasing tool. The torque-withstanding type double-acting releasing tool comprises an upper connector, a lower connector and a sliding sleeve, wherein a suspended step is arranged on the inner wall of the upper connector, the lower connector is sealed and arranged at the lower portion of the upper connector in a sleeving mode, the lower connector and the upper connector are fixed through first shear screws in a penetrating mode, the sliding sleeve is sealed and arranged in the upper connector and the lower connector in a penetrating mode, a step is arranged on the outer wall of the sliding sleeve in a protruding mode and is located above the suspended step, a sealing conical surface for clamping a steel ball is arranged on the inner wall of the sliding sleeve, the sliding sleeve is provided with overflow holes formed in the upper portion of the sealing conical surface, and the sliding sleeve and the lower connector are fixed through second shear screws in a penetrating mode. The torque-withstanding type double-acting releasing tool has mechanical and hydraulic releasing modes simultaneously and is simple in structure, high in reliability and good in internal pressure bearing capacity.

The invention discloses an air conditioner capable of controlling temperature and humidity separately. The air conditioner comprises an indoor unit system positioned on a user side, and an outdoor unit system positioned on an outdoor side, wherein the outdoor unit system comprises a compressor; the compressor is connected with an outdoor side heat exchanger through a four-way valve; the outdoor side heat exchanger is connected with a refrigerant distribution adjustor I; the indoor unit system is partitioned into two modules, namely, a high-temperature module and a low-temperature module; the refrigerant distribution adjustor I is connected with a low-temperature module heat exchanger of the low-temperature module through a low-temperature module expansion valve; the refrigerant distribution adjustor I is connected with a high-temperature module heat exchanger of the high-temperature module through a high-temperature module expansion valve; the high-temperature module heat exchanger is connected with a refrigerant distribution adjustor II; the low-temperature module heat exchanger is connected with the refrigerant distribution adjustor II through a refrigerant boosting device and a one-way adjusting valve; the refrigerant distribution adjustor II is connected with the four-way valve. According to the air conditioner, temperature and humidity can be controlled separately, and the requirement for separate control of temperature and humidity on the indoor side is met; the energy efficiency ratio of the air conditioner can be increased greatly; the refrigerant flows of the high-temperature module and the low-temperature module can be adjusted optionally, so that the requirement of different indoor working conditions are met.

A mop able to spray liquid is composed of mop handle, liquid spraying unit consists of liquid spray manipulating mechanism, liquid sucking-discharging mechanism and liquid storage bottle, and cleaning part. The amount of sprayed liquid and the speed and direction of spraying liquid are controll able.

The invention provides a negative electrode. The negative electrode comprises a first negative electrode active material, a conductive network structure with holes and a second negative electrode active material positioned in the holes, the second negative electrode active material is lithium metal, and the lithium metal is deposited in the conductive network structure and is not separated out from the surface of the negative electrode. The invention further provides a lithium ion secondary battery comprising the negative electrode and a preparation method of the lithium ion secondary battery,excessive lithium ions of the positive electrode are separated out and deposited in holes of the negative electrode through a charging process, so that lithium metal and a negative electrode active material jointly form the negative electrode, and the problem of lithium separation on the surface of the negative electrode in a battery circulation process is solved; the formation of lithium dendrites is avoided, so that the safety of the battery is improved; meanwhile, the negative electrode has two charging and discharging forms of lithium metal and graphite with different mechanisms, so thatthe energy density and the cycle performance of the battery are improved.

The invention provides a sewing machine bobbin thread detection control method, comprising the sequential steps of providing a sewing machine with an electronic control module, an operating panel anda bobbin thread remainder detection mechanism. The electronic control module is at least pre-provided with the warning modes of an instantaneous warning mode that allows instantaneous warning in caseof insufficient bobbin thread remainder, and a delay warning mode that allows set N stitches of sewing to be continued before warning when the bobbin thread remainder is insufficient. The electronic control module selects one warning mode; the sewing machine is started to perform sewing; during sewing, the electronic control module judges whether the bobbin thread remainder on a bobbin is sufficient according to an output signal from a detection sensor; if not, the electronic control module warns on the insufficient bobbin thread remainder according to the selected warning mode. After the insufficient bobbin thread remainder is detected, at least two warning modes are supplied to a user; the limited warning mode of instantaneous shutdown is not provided; the method herein is more humanizedand can meet the requirements of customers under different conditions.

The invention relates to a parallel hybrid power transmission which comprises a clutch unit, a motor unit, a mechanical unit and speed measuring and sensing devices, wherein the clutch unit comprises a clutch and a clutch actuating mechanism which is connected with the clutch and drives the clutch to make clutch movement; the motor unit comprises a motor shaft; the mechanical unit comprises a mechanical part housing, a mechanical unit input shaft, a transmission countershaft and a transmission output shaft; the mechanical unit input shaft is arranged in the mechanical part housing; an engine power output device is connected with the motor shaft by through the clutch; the motor shaft is connected with the mechanical unit input shaft; the mechanical unit input shaft drives the transmission output shaft to rotate through the transmission countershaft; and the speed measuring and sensing devices are arranged on the motor shaft, the transmission countershaft and the transmission output shaft respectively. The parallel hybrid power transmission can improve the engine efficiency and reduce the energy consumption.

The invention discloses a rotary type magnetorheological damper capable of outputting asymmetric damping. The rotary type magnetorheological damper capable of outputting the asymmetric damping comprises an outer cylinder barrel, a left end cover fixedly connected with the left end of the outer cylinder barrel and a right end cover fixedly connected with the right end of the outer cylinder barrel;an outer iron core, an iron core magnetism isolating barrel, an inner iron core, an inner cylinder barrel and a magnetorheological fluid pushing rod are sequentially arranged inside the outer cylinderbarrel from outside to inside; a first annular channel for circulation flow of magnetorheological fluid is formed between the outer iron core and the outer cylinder barrel, and a second annular channel for circulation flow of the magnetorheological fluid is formed between the inner cylinder barrel and the inner iron core; and the left end cover is provided with a first control assembly and a second control assembly which are used for controlling the magnetorheological fluid to generate different circulation flow loops in the axial direction of the outer cylinder barrel. According to the magnetorheological damper in the technical scheme, semi-active control can be realized by simple hierarchical control, and the dependences on a complex sensing system and a control system are reduced.

The invention provides a belt conveyor with a large inclined angle. The belt conveyor comprises a rack and a driving roller. The driving roller drives a belt and is guided by the rack. The belt conveyor further comprises an upper supporting roller and a supporting roller group. The upper supporting roller is provided with a plurality of pairs of connection holes. The supporting roller group is fixed by the upper supporting roller through the connection holes. According to the belt conveyor with the large inclined angle provided by the invention, the angle of the supporting roller group can be adjusted, and an anti-deflection device is arranged to limit a belt to move within a certain range. Furthermore, a cleaning supporting roller is additionally arranged for cleaning residual materials on the belt, so that the conveying efficiency of the conveyor is improved.

The invention relates to the technical field of construction of rails and track traffic and particularly relates to an opening type water cooling rail induction normalizing coil relative to rail welding connector processing. The coil is characterized in that a profiling principle is applied, independent tubes and circuits are arranged on the left coil and the right coil of the induction normalizing coil, current and water flow pass in the pipeline, the water flow and the current in the left coil and the right coil are not communicated, two copper tubes which are arranged on two sides respectively are connected in parallel, the left coil and the right coil are bolted in an insulating mode at the corner position of the rail bottom of one side of the rail, and the profiling rail installation is conducted. The normalizing heating temperature is even, the electricity-magnet-heat conversion rate is improved, a water/electricity supplying circuit is a water-cooling soft connection cable, the flexibility is good, all directions can move in a large range, different condition requirements can be met, the coil is convenient to assemble and disassemble, long in service life, low in cost, energy-saving, environment-friendly and safe in operation and rail connector normalizing quality is stable.

The invention belongs to the technical field of tools for live operation and particularly relates to a remote control wrench used for high voltage live screw mounting or demounting. The remote control wrench comprises an insulating operating rod, an electric wrench, a remote control component, a locking device and a lifting device, wherein the electric wrench comprises an upper housing arranged on the insulating operating rod, a rotary motor placed inside the upper housing, and a rotating head connected with the rotary motor, the remote control component is in wireless connection with the rotary motor so as to control the rotating head to act, the locking device comprises a locking sleeve opposite to a locking head, and the lifting device is arranged on the insulating operating rod, is connected with the electric wrench and/or the locking device, and drives the electric wrench and the locking device to move in the axial direction along the insulating operating rod. According to the remote control wrench, during the use, the electric wrench and the locking device play an effect together to prevent a nut from autorotation, the requirements of different working conditions are met, risks caused by live operation of workers can be avoided, the labor intensity is lowered, and the work efficiency is improved.