44results about How to "With automatic compensation function" patented technology

The invention belongs to a mechanical-electrical integration system, relating to electric transmission analogue of a mechanical rotation inertia system, in particular to a brake tester with combination of mechanical analogue and electric inertia analogue and a control algorithm. The control algorithm comprises the following steps of: calculating a total drop-out value when the kinetic energy of a flywheel is related to a test appointed initial rotation speed by synchronously acquiring a flywheel rotation speed and a motor output torque, calculating total energy compensated by the motor according to a mathematic model, simultaneously calculating total energy compensated by the motor to obtain the difference of the two and calculating a force moment output value of the motor in a next control period so that the tester runs in a state of being equal to an ideal flywheel without system constant resistance. The brake tester has an automatic compensation function of an energy compensation error so as to control the total error within a small range; and exact matching of rotation inertia is realized, the requirement of a high-precision test can be met by the control precision, and the investment and the operation cost are saved.

The invention belongs to a mechanical and electrical integrated system and relates to electric drive simulation of a mechanical rotation inertia system, measurement of braking torques of brakes except the tested brake and synchronous measurement of a combination braking torque and a mechanical friction braking torque under a simulated composite braking state, in particular to a ventilating disc type brake test stand and an electric inertia simulating control method of the ventilating disc type brake test stand. The method includes the steps of synchronously collecting the rotating speed of a flywheel and the output torque of a motor, calculating a torque output value of the motor according to a mathematic model so that the test stand runs under the situation where the simulator stand approaches an ideal flywheel and no system inherent resistance exists. According to the test stand and the method, accurate matching of the rotational inertia is achieved, control precision can meet high-precision test requirements, and investment and running cost are saved.

The invention discloses a plug-in connecting terminal for use in a universal circuit breaker, which comprises a connecting terminal frame body fixed on a breaker body, a terminal connecting block arranged in the frame body and a terminal main body connected with a driving device of the breaker, wherein the frame body is fixedly connected with the inside of the breaker body through a frame body connecting device arranged on the frame body; the terminal connecting block can move horizontally in the frame body along guide rails; the terminal main body moves reciprocally through the driving device connected with the terminal main body; and a locking and unlocking device is arranged in the connecting terminal. According to the technical scheme, the connecting terminal can well overcome the technical drawbacks of elastic fatigue susceptibility of a tension spring keeping the terminal connecting block and the terminal main body in close joint, the deformation and cracking susceptibility of a bearing column, the poor dynamic-static terminal contact generated under the action of a downward component force when the terminal main body is plugged in the terminal connecting block, the deformation produced in a dynamic connecting terminal under the action of a deflecting force in the connecting terminal in a connected state, and the like. And the plug-in connecting terminal has the advantages that: the structure is simple; the inter-part connection is reliable; the mechanical movement is smooth; the service life is long; and the problems of high cost and inconvenient operation, which are caused by the frequent replacement of the connecting terminal of the breaker, are solved.

This invention discloses method and equipment for preparing lead iodide single crystals from lead iodide melt, which comprises the steps of: cleaning an ampule, filling it with lead iodide powders, degassing and sealing the ampule, growing the single crystals and cooling. The method can effectively suppress the decomposition of lead iodide melt and the vaporization of iodine, and can remove segregated lead. The ampule is made of a quartz tube, and comprises a seed crystal bag, a growth chamber, a connecting vessel, a lead tube, a loading bag anb a hook. After filling, the ampule is placed into a two-stage temperature range vertical tubular furnace to finish the growth of the single crystals. The as-grown single crystals are orange and semi-transparent with sizes up to Phi (15-20)X30 mm. The electrical resistivity of as-grown single crystals can reach 1012-1013 ohm .cm, thus the single crystals have wide applications, especially as room temperature nuclear radiation detector.

The invention relates to a bidirectional non-backstopping overrun clutch. A retainer assembly comprises a retainer outer ring, a retainer inner ring, a spring and a nut. When power is input into a driving end, a clutch outer race, while driving a wedge block to rotate, pushes a roller to move downwards to contact with an inner race, thereby enabling the clutch outer race, the roller and the inner race to engage with each other and then allowing the clutch to transfer torque. When the driving end loses the power, the roller moves to a middle position of the wedge block and thus disengages from the inner race. Regardless of clockwise or counterclockwise rotation of the inner race serving as a driving wheel, the outer race may not be driven to rotate together, i.e., the clutch is in a bidirectional disengaged state. The bidirectional non-backstopping overrun clutch is applicable to various working conditions of a prime mover and a transmission shaft, wide in application range, and steady in engagement, reliable in working, free from noise and simple in structure, and has a great significance for improving the mechanical transfer efficiency of ship power as well as damping and noise reducing.

The invention belongs to a mechanical and electrical integrated system and relates to electric drive simulation of a mechanical rotation inertia system, measurement of braking torques of brakes except the tested brake and synchronous measurement of a combination braking torque and a mechanical friction braking torque under a simulated composite braking state, in particular to a ventilating disc type brake electric inertia simulator stand and an electric inertia simulating control method of the ventilating disc type brake electric inertia simulator stand. The method includes the steps of synchronously collecting the rotating speed of a flywheel and the output torque of a motor, calculating total energy which needs to be compensated by the motor according to a mathematic model, calculating total energy which has been compensated by the motor at the same time, obtaining the difference between the two types of total energy, and calculating and setting a torque output value of the motor according to the difference so that the simulator stand runs under the situation where the simulator stand approaches an ideal flywheel and no system inherent resistance exists. The mechanical and electrical integrated system has an automatic compensation function for an energy compensation error, controls the total errors within a very small range, achieves accurate matching of rotation inertia and saves investment and running cost, wherein the control precision can meet high-precision test requirements.

The invention belongs to mechatronics systems, and relates to electric drive simulation of a mechanical rotation inertial system, in particular to an electric inertia tyre braking bench and an electric inertia control method thereof. Drum rotation speed and motor output torque are synchronously collected, a motor torque output value is calculated according to a mathematic model, and the braking bench operates under the state that an ideal drum is close and system proper drag does not exist. Precise matching of rotational inertia is achieved, control precision can meet the requirement of a high-precision test, and investment and operation cost are saved.

The invention relates to the technical field of grounding body corrosion prevention and resistance reduction, in particular to an environment-friendly long-acting electrolytic ion grounding electrode and a construction method thereof. The electrolytic ion grounding electrode disclosed by the invention is a compound grounding electrode composed of a steel wire grounding electrode, an electrolytic ion source and electrolytic ion carriers, wherein the electrolytic ion source is connected with the steel wire grounding electrode; one end of a lead-up wire is connected with the electrolytic ion source, and the other end of the lead-up wire is led onto the ground surface; and the electrolytic ion carriers are wrapped on the steel wire grounding electrode and the periphery of the electrolytic ion source. The environment-friendly long-acting electrolytic ion grounding electrode can solve the resistance reduction problem in high earth resistivity areas such as rocky mountain, gravel and rubble terrains, and can successfully solve the corrosion problem of low earth resistivity in salt and alkali low bogs, resistance value stability problem and relatively frequent maintenance change.

The invention belongs to a mechatronics system, and relates to electrified transmission simulation of a mechanical slew inertia system, in particular to a mechanical and electric inertia simulation tire braking bench and an electric inertia simulation control method. The angular velocity of a drum wheel and the output torque of a motor are acquired synchronously; the total energy which the motor should compensate is calculated according to a mathematic model, the total energy which the motor already compensates is calculated at the same time, and the difference between the total energy which the motor should compensate and the total energy which the motor already compensates is obtained; the torque output value of the motor is calculated according to the difference so that the machine and electric inertia simulation tire braking bench can operate in the state that the machine and electric inertia simulation tire braking bench approaches an ideal drum wheel and is free from drum wheel system proper drag. The mechanical and electric inertia simulation tire braking bench has the function of automatically compensating energy compensating errors, thereby controlling total errors within a small range; accurate match of rotational inertia is realized, and the control accuracy can meet the test requirement for high precision; investment is saved, and operating cost is reduced.

The invention discloses a dry friction type double clutch of an automatic transmission. Pressure plates of a clutch cover assembly includes a first pressure plate, a second pressure plate and a third pressure plate, and driven plate assemblies include a first driven plate assembly and a second driven plate assembly. Diaphragm springs of the clutch cover assembly include a first diaphragm spring and a second diaphragm spring, the second diaphragm spring is mounted on the first pressure plate, the first diaphragm spring is mounted on a clutch cover of the clutch cover assembly through a limiting column, and the second diaphragm spring and the clutch cover as well as the first diaphragm spring and the clutch cover are connected through an inner toothed plate and an outer toothed plate respectively. The inner toothed plate and the outer toothed plate are in contact with the clutch cover respectively and connectively through a plurality of bosses thereon. Automatic gapless gear shifting can be realized, power stagnation cannot occur, driving comfortability of a complete vehicle and economical efficiency in fuel conservation and consumption reduction are effectively improved, and the dry friction type double clutch has the advantages of fuel conservation and consumption reduction, high acceleration and automatic gear shifting.

This invention discloses method and equipment for preparing lead iodide single crystals from lead iodide melt, which comprises the steps of: cleaning an ampule, filling it with lead iodide powders, degassing and sealing the ampule, growing the single crystals and cooling. The method can effectively suppress the decomposition of lead iodide melt and the vaporization of iodine, and can remove segregated lead. The ampule is made of a quartz tube, and comprises a seed crystal bag, a growth chamber, a connecting vessel, a lead tube, a loading bag anb a hook. After filling, the ampule is placed into a two-stage temperature range vertical tubular furnace to finish the growth of the single crystals. The as-grown single crystals are orange and semi-transparent with sizes up to Phi (15-20)X30 mm. The electrical resistivity of as-grown single crystals can reach 1012-1013 ohm .cm, thus the single crystals have wide applications, especially as room temperature nuclear radiation detector.

The invention discloses a cutter mechanism of a machine tool used for turning spherical workpieces, comprising a cutter (3), a transmission shaft (14) driven by a rotator (12), a cylinder (1) fixed on the machine tool and a piston (2) matched with the cylinder (1); the center of the piston (2) is penetrated with a through hole; the transmission shaft (14) is arranged in the through hole of the piston (2) by a bearing (11); one end of the transmission shaft (14) is fixed on the cutter (3) and is coaxial with the cutter (3); the cylinder (1) is provided with an upper limiting surface (6) which limits a piston part (7) of the piston (2) axially and is a conical surface; and the upper end surface (8) of the piston part (7) of the piston (2) is a conical surface matched with the upper limiting surface (6). The cutter mechanism of the machine tool used for turning spherical workpieces has the characteristics of good rigidity, high precise of repeated positioning, and low processing difficulty, manufacturing cost and operation cost.

The invention discloses a screen frame positioner for screen photosensitive plate making and a rapid and accurate positioning method thereof. The screen frame positioner consists of a conical ejector pin positioning device, a trapezoid ejector pin positioning device, a screen frame equipped with a ladder rod polymer photosensitive film screen, and a fixation frame for positioning the screen frame. The rapid and accurate positioning method includes: a preparation alignment process under a lighting condition and a printing platemaking process under a darkroom condition. With the aid of the screen frame positioned, a complex three-parameter screen frame positioning problem is converted to a positioning problem of three single parameters. Rapid and accurate positioning replaces the time-consuming and laborious screen frame manual positioning that cannot ensure the positioning accuracy.

The invention provides a dedicated piston assembly for a reciprocating piston type gas compressor. The dedicated piston assembly for the reciprocating piston type gas compressor is good in sealing effect, long in service life, low in cost, capable of being used under the working conditions of oil lubrication and oil-free lubrication, and particularly suitable for the field of medium pressure and high pressure. The dedicated piston assembly for the reciprocating piston type gas compressor comprises an air cylinder and a piston matched with the air cylinder. An upper guide ring and a lower guide ring are installed at the two ends of the piston respectively. Multiple circular grooves are formed in the piston. Piston rings connected with the air cylinder in a sealing mode are arranged in the circular grooves. At least one seal ring is arranged on the inner side of each piston ring in each circular groove. At least one gas guide hole which makes the root portion of each circular groove be communicated with an inner cavity of the air cylinder is correspondingly formed in each circular groove in the piston. The gas guide holes are multiple in number and distributed along each circular groove at an equal distance. Each piston ring is of a spring structure, and the number of total coils of each spring is greater than one.

The invention discloses a rotating shaft sealing structure. A circular sealing element is sleeved between a rotating shaft and an inner hole of an end cover, the outer edge of the sealing element is tightly matched with the wall of the inner hole of the end cover, and the inner edge of the sealing element is butted against the cylindrical surface of the rotating shaft. The rotating shaft sealing structure is characterized in that the cross section of the sealing element is of a 'K' shape, the flat surface side of the K-shaped cross section is the outer edge of the sealing element, and one pair of splay inclined surface flanges at the other side on the K-shaped cross section are inner edges of the sealing element. The sealing structure provided by the invention has the function of automatic compensation, pressing force forming sealing mainly comes from the elasticity of the flange and outside pressure, the pressing force is small, and abrasion is small. The resistance to the rotating shaft in rotation can be effectively reduced, and the replacement frequency of the sealing element is reduced.

The invention discloses a device for monitoring the grouting compactness of a prefabricated building, automatically compensating and verifying the strength of a grouting material. The device comprises a communicating pipe, a standard sample reserving device, a communicating pipe, a compensating and observing device and an anti-backflow device. The standard sample reserving device is connected with a slurry discharging port of the conventional sleeve through a communicating pipe, a compensation and observation device is arranged above the standard sample reserving device, and a backflow prevention device is arranged above the compensation and observation device. When the device is used, whether the grouting quality meets the requirement or not can be judged according to the position of the grout level of the grouting material in the compensation and observation device, and when the quality is not met, grouting material compensation can be automatically conducted on the sleeve. The problems that the grouting compactness of the fabricated building is difficult to guarantee and detect, and the strength of the grouting material cannot be verified can be effectively solved, and the building quality of the fabricated building can be effectively improved.

The invention belongs to a mechanical and electrical integrated system and relates to electric drive simulation of a mechanical rotation inertia system, measurement of braking torques of brakes except the tested brake and synchronous measurement of a combination braking torque and a mechanical friction braking torque under a simulated composite braking state, in particular to a ventilating disc type brake electric inertia simulator stand and an electric inertia simulating control method of the ventilating disc type brake electric inertia simulator stand. The method includes the steps of synchronously collecting the rotating speed of a flywheel and the output torque of a motor, calculating total energy which needs to be compensated by the motor according to a mathematic model, calculating total energy which has been compensated by the motor at the same time, obtaining the difference between the two types of total energy, and calculating and setting a torque output value of the motor according to the difference so that the simulator stand runs under the situation where the simulator stand approaches an ideal flywheel and no system inherent resistance exists. The mechanical and electrical integrated system has an automatic compensation function for an energy compensation error, controls the total errors within a very small range, achieves accurate matching of rotation inertia and saves investment and running cost, wherein the control precision can meet high-precision test requirements.

The invention provides a multi-channel analog signal acquisition system with an automatic compensation function. The multi-channel analog signal acquisition system is characterized by comprising at least one multi-channel analog signal acquisition board with an automatic compensation function, the multi-channel analog signal acquisition boards are connected into a PCI (peripheral component interconnect) bus of a computer according to PCI long card standards and PC104Plus interference boards, and each multi-channel analog signal acquisition board with the automatic compensation function comprises a multi-channel analog signal input module, a signal conditioning module, a signal isolation circuit, a nominal voltage generating module, a signal controlling and signal processing module and a PCI protocol implementation circuit. The multi-channel analog signal acquisition system with the automatic compensation function has the advantages that multi-channel analog signal parallel acquisition and threshold exceeding detection functions and the automatic compensation function can be implemented simultaneously, the multi-channel analog signal acquisition system has a configurable real-time signal amplitude detection function and an automatic amplitude value compensation function, detected threshold exceeding information can be accurately timed, and the multi-channel analog signal acquisition system can be used for analyzing influencing factors and abnormal factors during industrial production or scientific research.

The invention provides an automatic limiting regulator for a steering wheel. A front rod of an inner stroke unloading valve rod of a rack piston is arranged in a limiting spring sleeve and is in clearance fit with the limiting spring sleeve; a rear rod of the stroke unloading valve rod is arranged in a pressure spring; a fixing nut and the limiting spring sleeve form interference fit by the elastic force action applied to the limiting spring sleeve; the fixing nut and the rack piston are connected by threads; the stroke unloading valve rod and the limiting spring sleeve form conical sealing under the action of the pressure spring under the normal state; separated oil paths A and B of a left cavity and a right cavity on the limiting spring sleeve in the rack piston are closed under the normal state. The defect of the inaccurate positioning precision in the process that the steering wheel adjusts the corner unloading position is solved, conical surface rigid sealing is adopted, the sealing performance is good and the automatic limiting regulator has an automatic compensation function.

The invention belongs to a mechanical and electrical integrated system and relates to electric drive simulation of a mechanical rotation inertia system, measurement of braking torques of brakes except the tested brake and synchronous measurement of a combination braking torque and a mechanical friction braking torque under a simulated composite braking state, in particular to a ventilating disc type brake test stand and an electric inertia simulating control method of the ventilating disc type brake test stand. The method includes the steps of synchronously collecting the rotating speed of a flywheel and the output torque of a motor, calculating a torque output value of the motor according to a mathematic model so that the test stand runs under the situation where the simulator stand approaches an ideal flywheel and no system inherent resistance exists. According to the test stand and the method, accurate matching of the rotational inertia is achieved, control precision can meet high-precision test requirements, and investment and running cost are saved.

The invention discloses a plunger pump for an automobile braking system. The plunger pump for the automobile braking system comprises a motor eccentric bearing, a motor shaft, a valve block, a pump oil outlet cavity, a backpressure cavity, an active pressurization oil passing channel, a star-shaped sealing ring, a pump guide sleeve, a pump oil inlet assembly and a pump plunger assembly. The plunger pump is composed of the independent pump oil inlet assembly, the pump plunger assembly, the star-shaped sealing ring, the pump guide sleeve and the valve block, the active pressurization oil passing channel is formed between a low-pressure cavity and the backpressure cavity of the plunger pump, when brake fluid of the low-pressure cavity is compressed by pushback movement of a plunger rod assembly, the brake fluid provides active pressurization for oil absorption of the plunger pump through the active pressurization oil passing channel, and therefore the efficiency of the pump is improved.

In order to solve the technical problems of instable working efficiency and incapability of reutilization, the invention designs a spanner with a detachable ejector header. The spanner with the detachable ejector header comprises a clamping part, a linkage ring and an installation panel, wherein the clamping part comprises a clamping wheel and a holding rod; the clamping wheel is connected with the holding rod; the linkage ring is provided with a connecting hole; the holding rod penetrates through the connecting hole so as to be connected with the linkage ring; a through hole and an installation column are arranged on the installation panel; and the clamping part is connected with the installation panel through the installation column. According to the spanner with the detachable ejector header provided by the invention, the specially processed clamping part is adopted, the performance of the clamping part is not lower than the performance of a pipe wrench bayonet, and the clamping part has automatic compensation, self-centering, quick-changing and linkage functions so as to be conveniently changed and adjusted.

The invention relates to an energy-increased elastic sealing valve structure and a double-eccentric butterfly valve applying the same. The energy-increased elastic sealing valve structure comprises a valve seat assembly and a press ring, wherein the valve seat assembly comprises a V-shaped spring, a non-metal elastic sealing ring, a metal sealing ring and a valve seat. The metal sealing ring is arranged on the inner side of the valve seat, the metal sealing ring is a circular-ring-shaped, and the inner edge and the outer edge of the metal sealing ring are respectively provided with an inner peripheral C-shaped ring and an outer peripheral C-shaped ring. An outer ring groove and an inner ring groove which are concentric are arranged on the inner end face of the valve seat, and an annular step is arranged between the outer ring groove and the inner ring groove. The inner peripheral C-shaped ring and the outer peripheral C-shaped ring of the metal sealing ring are respectively arranged in the inner ring groove and the outer ring groove of the inner end face of the valve seat, and the middle plane of the metal sealing ring strides on the annular step and is kept suspended. The non-metal elastic sealing ring is arranged on the outer side of the valve seat and is pressed and positioned through the press ring. The energy-increased elastic sealing valve structure has a certain-degree automatic compensation function to an abraded sealing face, can achieve effective sealing and has a fireproof function.

The invention relates to a bidirectional non-backstopping overrun clutch. A retainer assembly comprises a retainer outer ring, a retainer inner ring, a spring and a nut. When power is input into a driving end, a clutch outer race, while driving a wedge block to rotate, pushes a roller to move downwards to contact with an inner race, thereby enabling the clutch outer race, the roller and the inner race to engage with each other and then allowing the clutch to transfer torque. When the driving end loses the power, the roller moves to a middle position of the wedge block and thus disengages from the inner race. Regardless of clockwise or counterclockwise rotation of the inner race serving as a driving wheel, the outer race may not be driven to rotate together, i.e., the clutch is in a bidirectional disengaged state. The bidirectional non-backstopping overrun clutch is applicable to various working conditions of a prime mover and a transmission shaft, wide in application range, and steady in engagement, reliable in working, free from noise and simple in structure, and has a great significance for improving the mechanical transfer efficiency of ship power as well as damping and noise reducing.

The invention relates to a sealing device for a rotary machine. The rotary machine comprises a machine body and a rotating shaft. The sealing device comprises a fixed portion and a rotating portion, wherein the fixed portion comprises an end cover fixed to the machine body, and a fixed ring assembled on the end cover; the rotating portion comprises a moving ring which is mounted on the rotating shaft and can rotate along with the rotating shaft; the moving ring and the fixed ring are matched to form a rotary sealing pair; the fixed ring and the end cover are connected through a stop pin; and the shear breaking strength of the stop pin is greater than rated driving force of the rotary machine but lower than maximum allowable driving force of the rotary machine.

The invention discloses a self-compensating robot tail end six-dimensional torque transducer collecting system and a zero-drift compensating method and zero-drift obtaining method thereof, and belongs to the field of information collection of robot transducer systems. In order to solve the problem that the degree of accuracy of collected data of an existing robot tail end six-dimensional torque transducer collecting system is low, a force moment signal and a temperature signal which are input by the collecting system undergo information conditioning, collecting and signal processing in sequence, and a signal processor enables the data of a transducer combined with a temperature drift curve to be compensated to a force moment signal input module; a digital analog converter is used for converting a zero-drift compensating voltage output by the signal processor into an analog signal to be input to the force moment signal input module, and the signal processor conducts data exchange with an upper computer through a communication module. The zero-drift compensating method is realized by the way that the zero-drift compensating voltage or the resistance of the force moment signal input module is adjusted to meet the fixed formula requirement. The self-compensating robot tail end six-dimensional torque transducer collecting system and the zero-drift compensating method and zero-drift obtaining method thereof are used for signal collection of robot tail end six-dimensional torque transducers.

The invention discloses a semiautomatic electromagnetic valve capable of locking heavy load and achieving low-power-consumption and reliable unlocking. One end of a moving component moving in a seal channel of a valve deck up and down is connected with a knuckle bearing at the rod end of a self-lubricating ball stud, and the other end of the moving component is connected with the heavy load; the other end of the knuckle bearing is connected with a driven rod; one end of a linkage rod is in pin connection with one end of a movable iron core; one end of a driving rod is connected with a power rotating head through a drive shaft; a fixed iron core, a coil and the movable iron core moving in the axial direction are arranged in a plastic package electromagnetic coil; the valve is in an open state and the heavy load is locked when the permanent magnet force of the fixed iron core to the movable iron core is greater than the axial component force of the resultant force of the gravity of the moving component and airtight power spring force to the movable iron core; and the moving component is gently unlocked and moves downwards to close the valve when the permanent magnet force of the fixed iron core to the movable iron core is smaller than the axial component force of the resultant force of the gravity of the moving component and airtight power spring force to the movable iron core. The semiautomatic electromagnetic valve has the advantages of heavy load locking and low-power-consumption and gentle unlocking.

The invention relates to a ball valve structure, in particular to a self-compensating ball valve structure for seal wear. The self-compensating ball valve structure comprises a valve body, a valve seat, a valve cover, a valve rod and a ball body, wherein the ball body is located inside the valve body, the valve rod is fixed at the upper end of the ball body, the valve cover is fixed at the upper end of the valve rod and the valve seat is arranged between the inner part of the valve body and the ball body. The valve body is of an I-shaped structure; preferably, in order to save the cost when either the ball body or the valve rod is needed to change due to destroy, the valve body and the valve rod are movably connected; more preferably, a sealing filler is arranged on a connection among the lower end of the valve rod, the valve rod and the valve body. According to the ball valve structure, the unique I-shaped design is adopted for the valve body, so that the seal of the valve seat has a self-compensating function, the function of well compensating the wear of the valve seat can be reached, and the life of the ball valve can be prolonged.