48results about How to "Timely compensation" patented technology

The composite mixed mode and flow mode double-channel magnetic rheologic damper includes work cylinder, piston type magnetic field generator, compensator and sealing unit. The piston type magnetic field generator has two flow channels, including the outer channel without magnetic field and operating in mixed mode and the inner channel inside magnetic field and operating in flow mode. The damper may operate in no outer exciting current state with relatively small damping and in large outer exciting current state with relatively great damping. This kind of double-channel structure makes the magnetic rheologic damper possess greatly lowered damping under the condition of no external magnetic field, has expanded dynamic regulation range and even suitable for the semi-active control of vehicle suspension.

A swash plate double-headed piston compressor comprises a spindle (8), a swash plate (7), a front cylinder body (1) and a back cylinder body (2); a plurality of piston chambers are arranged between the front cylinder body (1) and the back cylinder body (2), each piston chamber is provided with a double-headed hollow piston (5), the swash plate (7) is arranged on the spindle (8); the compressor is characterized in that the double-headed hollow piston (5) is symmetrically provided with two small hemisphere pits, each small hemisphere pit is internally provided with a small hemisphere (6), the swash plate (7) is inserted into the place between the two small hemispheres (6), and the heights of the two small hemispheres (6) plus the thickness of the swash plate (7) are less than the spherical diameter of the small hemisphere (6); the swash plate (7) is provided with an air pressure support ring slot for compensating and bearing load; the double-headed hollow piston (5) is provided with a piston ring (10) for supporting with diameter being less than that of the inner diameter of the piston chamber; a wear-resistant layer is arranged on the panel where the swash plate (7) is contacted with the small hemisphere (6). The invention has the advantages of simple structure, convenient manufacture and installation, long service life and high efficiency.

The invention discloses a stepless compensating device which mainly comprises a filter, a signal collecting plate, an inversion plate, a control plate and a PWM pulse driving plate. Meanwhile, the invention discloses a stepless compensating method. An FPGA chip is used as a core element, a real-time data collecting technology and a dynamic tracking technology are used for monitoring the electric energy quality of a power distribution system in real time, through a monitoring system, a series of electric energy quality data such as system voltages, frequency, loading currents, THDi, THDu, voltage waveform, current waveform, stepless compensating device output current magnitude and waveform can be checked in real-time, the idle current magnitude output by the device is changed continuously through an inversion circuit, quick and continuous idle power compensating is achieved, through the method, idle currents are compensated timely, and the whole structure has the advantages of being scientific, reasonable, advanced in technology, timely in compensating, high in stability, high in cost performance and the like.

The invention discloses a rotating connector. The rotating connector comprises a shell (1) and is characterized in that a spring (2), a spring cushion (10), a rubber cushion (3), an O-shaped ring (4) and a seal ring (5) are arranged in the shell (1), a shaft clamp (8) is arranged in a groove of a hollow shaft (9), a bearing (6) is arranged between an inner hole of the shell (1) and the external diameter part of the hollow shaft (9), lubricant oil is injected into the bearing (6) through an oil nozzle II, and an observation hole (12) is used for a worker to observe whether leakage exists or not. A hole check ring (7) is used for performing limiting to connect all components into a whole. The rotating connector has the advantages of being simple in structure, stable in supporting and large in bearing pressure, the resisted pressure is 2.0 MPa, the revolving speed is 0-500 r/min, the rotating connector is suitable for the operation of a pipeline, and media are cooling water, saturated steam, conduction oil, air and the like.

The invention relates to a production process for a high-precision bearing roller for rail transit. The production process comprises the following steps of step 1, cold heading: after drawing steel byutilizing a four-station high-speed cold header, upsetting the drawn steel into a roller blank; 2, heat treatment which is a full-automatic mesh belt furnace heat treatment flow production line; 3, hard grinding 1; 4, hard grinding 2; 5, ball base surface processing; 6, hard grinding 3; 7, superfinishing, in which 8 oilstones are adopted to perform vibration back and forth to process a raceway surface of a roller; 8, eddy current inspection, in which eddy current inspection equipment produced by German IBG is adopted and is installed on a superfinishing machine to realize unfolding of the roller so as to perform 100 percent eddy current inspection which is mainly used for detecting defects on the surface of the roller and cracks of internal tissues of the roller; and 9, packaging. The production process has the advantages that through four-station multi-formation, the forming precision of a product can be guaranteed, a metal flow direction of a material can tend to be reasonable at the same time, and the service life of the product is prolonged.

The invention discloses an automatic compensation system for inner supporting axial force of foundation pit structural steel and aims at providing an automatic compensation system which can automatically compensating for the axial force of a supporting beam in the structural steel in time. The automatic compensation system comprises an axial force pressurizing assembly and an axial force compensation device. The axial force pressurizing assembly comprises a first supporting part, a second supporting part and a limiting stop block, wherein the first supporting part and the second supporting part can be supported open mutually, and the limiting stop block is arranged between the first supporting part and the second supporting part. A stress maintaining part is arranged between the limiting stop block and the first supporting part. The axial force compensation device comprises an automatic bolt screwing device, a hydraulic jack arranged between the first supporting part and the second supporting part, and an insertion piece blanking compensation device arranged above the axial force pressurizing assembly. The insertion piece blanking compensation device comprises a case, a rotary disc rotationally arranged in the case through a horizontal shaft rod, multiple pneumatic clamping fingers arranged on the rotary disc, and an insertion piece mechanism arranged in the case. Each pneumatic clamping finger clamps a stress compensation insertion piece.

The invention relates to a single-phase connection method for a secondary low-voltage compensating device and a system of a submerged arc furnace. The submerged arc furnace is an important smelting device in the metallurgical industry, the power consumption is high, an electrical system for the prior submerged arc furnace to conduct smelting mainly comprises a high-voltage power supply network, a transformer of a transformer station, a primary side power supply network of an electric furnace, a high-power electric furnace transformer, a low-voltage and heavy-current short network system, a water cooling cable, an electrode system, a heart and the like, smelting current of the electric furnace causes the phenomena of voltage flicker and current impulse and causes distortion of voltage and current waveform of the smelting system, so that the line loss and the loss of the electric furnace device are increased, and the quality of electric energy is reduced. The invention further comprises a compensating capacitor connected in parallel at two ends of a secondary side short network of an electric furnace, the compensating capacitor is added on a node, the exchange for a capacitor has idle work, the idle work generated by the electric arc does not flow through the short network, the electric furnace transformer and the primary side, the pathway is simple and short, the loss is reduced, and the local compensation is realized. Therefore, the operating reliability of the device can be effectively improved.

The invention discloses a method and a system for generating and backing up scores of an athletic competition. The method for generating and backing up the scores of the athletic competition specifically includes that by means of at least two input ends, on-site technical information of each team of the athletic competition is respectively received, and second score information is recorded; whether the increasing amount of first score information is identical to that of the second score information is judged, if the increasing amount of the first score information is identical to that of the second score information, the first score information is output through a score output data end, and otherwise, the second score information is output through the score output data end, so that error data of on-site scores can be timely found and corrected, the accuracy and the effective reusability of the on-site scores are improved, and the acquisition quality of the on-site scores is improved.

The invention discloses a milling machine tool with a blade compensation function. The milling machine tool comprises a support plate and a first support pillar, wherein the middle of the first support pillar is connected with a second support plate through the support plate, a moving assembly is arranged on the support plate, a recovery assembly is arranged below the support plate, the upper endof the first support pillar is connected with the upper end of the second support plate through a top plate, the middle of the lower end of the top plate is connected with a thin milling assembly, anda thick milling assembly is arranged on one side of the thin milling assembly. The problems that multi-surface milling cannot be realized, material scraps remain easily in coolants for processing andcan block channels through which the coolants flow and the like can be solved, thick milling cutters or thin milling cutters rotate at high speed to perform milling, a first telescopic cylinder or asecond telescopic cylinder telescopes axially through a telescopic rod, the thick milling cutters or thin milling cutters and milled materials are timely compensated, and the milling machine tool hasthe effects of being simple in structure, environmentally friendly and capable of recycling coolants, prolonging service life of the machine tool and realizing multi-surface milling.

The invention relates to an angle connection method for a secondary low-voltage compensating device and a system of a submerged arc furnace. The submerged arc furnace is important smelting equipment in the metallurgical industry, the power consumption is high, an electrical system for the prior submerged arc furnace to conduct smelting mainly comprises a high-voltage power supply network, a transformer of a transformer station, a primary side power supply network of an electric furnace, a high-power electric furnace transformer, a low-voltage and heavy-current short network system, a water cooling cable, an electrode system, a heart and the like, smelting current of the electric furnace causes the phenomena of voltage flicker and current impulse and causes distortion of voltage and current waveform of the smelting system, so that the line loss and the loss of the electric furnace device are increased, and the quality of electric energy is reduced. The invention further comprises a compensating capacitor connected in parallel at two ends of a secondary side short network of an electric furnace, the compensating capacitor is added to a node, the exchange for a capacitor has idle work, the idle work generated by the electric arc does not flow through the short network, the electric furnace transformer and the primary side, the pathway is simple and short, the loss is reduced, and the local compensation is realized. Therefore, the operating reliability of the device can be effectively improved.

The invention relates to the field of electrical power appliance power supply, in particular to a full automatic alternating voltage compensator, and solves the problem that the voltage is not compensated timely and reliably as the existing alternating voltage compensator is controlled only by manpower manual operation. The full automatic alternating voltage compensator comprises a voltage compensation device and a control circuit of the voltage compensation device; wherein, the control circuit of the voltage compensation device comprises an automatic control unit and a control transformer which supplies power to the automatic control unit; the automatic control unit comprises a microcontroller, a membrane keyboard and a liquid crystal display (LCD) with raster graphics which are connected with the input/output port of the microprocessor, a midget relay which controls a contactor to gain power or not by contacts, and a micro pressure transformer; the driving chip of the midget relay is connected with the output port of the microcontroller by a photoelectric isolating chip; the secondary output port of the micro pressure transformer is connected with the input port of the microcontroller. The full automatic alternating voltage compensator of the invention has the advantage of reasonable and compact structure and can automatically control the compensation voltage; besides, the compensation is timely, accurate, and the operation reliability is high.