42results about How to "Reliable debugging" patented technology

The invention discloses a numerical control program post-processing method for five-coordinate linkage machine tools, which includes the following steps: (1) a machine tool geometric error compensation parameter method is adopted to compile a numerical control program, so that codes can be universally used on machine tools with like systems; (2) the numerical control program points generated by the machine tool software are reversely calculated into the points in a programming coordinate system, the points in the programming coordinate system are then normally calculated into machine tools with other systems, and therefore the codes are universally used on machine tools with various systems. The method solves the problem that programs complied in the conventional mode cannot be universally used, and also solves the contradiction between the RPCP (Rotation Around Part Center Point) and RTCP (Rotation Around Tool Center Point) programming modes and the conventional program-debugging habit of workshop workers, debugging is simple, rapid and reliable, and mistakes are prevented.

The invention belongs to the technical field of vibration isolation, and in particular relates to a six-degree-of-freedom quasi-zero-stiffness vibration isolation device, a debugging method thereof, and a vibration isolation method. A six-degree-of-freedom quasi-zero-stiffness vibration isolation device includes a top plate, a bottom plate, and a vibration isolator arranged between the top plate and the bottom plate; the vibration isolator includes a central support spring and a spring bracket; the central support spring The two ends of the two ends are respectively hung on the central position of the top plate and the bottom plate; there are four groups of the spring brackets, which are distributed rotationally symmetrically at equiangular intervals along the vertical axis of the bottom plate; the two ends of each group of spring brackets are respectively connected to the top plate and The bottom plate is connected, and the spring support is arranged obliquely relative to the horizontal direction. The beneficial effects of the present invention are: adopting four spring supports and one central support spring can realize the effect of vibration isolation with six degrees of freedom and quasi-zero stiffness vibration isolation at the same time, and has the characteristics of compact structure and low natural frequency; and the debugging process is simple and reliable , with the ability of engineering field application.

The invention discloses a pressure control method and a device for a pump unit of a nuclear power station. The pressure control method comprises the steps that S1, a pressure switch is turned from on to off after pressure at an inlet of the pump unit detected by the pressure switch mounted at the inlet of the pump unit is smaller than a set value, an abnormal pressure signal is generated and transmitted to a delaying module; S2, the delaying module receives the abnormal pressure signal and generates a low pump unit inlet pressure signal after being delayed according to the pre-set time; and S3, the low pump unit inlet pressure signal is transmitted to a trip instruction terminal of an electric plate cabinet of the pump unit through a hard wire to cut off a power supply of the pump unit and allow the pump unit to stop operation. The pressure control device for the pump unit comprises the pressure switch (1) and the delaying module (2). The pressure control method and the device have the benefits that the immediate stop of the operation of the pump unit in an abnormal condition (for example, the low pressure at the inlet of the pump unit) can be ensured under the situation that a DCS (Distributed Control System) and LSA (Test Loops) are unavailable, the safety of equipment is ensured, and the construction time and cost are saved.

The invention relates to a method for adjusting star wheel-rotor engagement accuracy of a single screw rod type refrigerating compressor. The method has the following steps that: (1) a main shaft is arranged in a machine casing, and a circular gasket is prearranged; (2) a centering tooling is arranged in the machine casing position in which a star wheel is arranged; (3) a screw rod rotor rotates, the end of a centering needle is adjusted to one end of a rotor groove, and a reading of a dialgage at the time is recorded as a; the screw rod rotor reversely rotates, the end of the centering needle is adjusted to the other end of the rotor groove, and a reading of the dialgage at the time is recorded as b; the tolerance range is set to be 0+ / -delta, and the difference between b and a is compared with 0+ / -delta; (4) if the difference between b and a exceeds the tolerance range, the thickness of the circular gasket between the fixed mating surfaces is increased or decreased, and the step (3) is repeated, until the difference between b and a is controlled within the tolerance range. The invention solves the problems that the traditional star wheel-rotor engagement has complicated debugging process, the assembly efficiency of the products is low, and the assembled star wheel-rotor engagement is still low.

The invention relates to an electric operating mechanism used for industrial automation control instruments, particularly relates to an adjustable precise position sensor which comprises a right-angle frame (1), a feedback rod (2) and a fixing base (10), wherein a screw rod pair is arranged on one end of the right-angle frame (1); a screw nut (8) of the screw rod pair is fixedly connected to an adjustable pin shaft (9); the feedback rod (2) is provided with a sliding slot along the length direction; one end of the feedback rod (2) is connected to one end of the right-angle frame (1); the feedback rod (2) is sleeved on the adjustable pin shaft (9) through the sliding slot; a potentiometer fixing plate (6) is fixed on the fixing base (10); a potentiometer is fixed on the potentiometer fixing plate (6); and a feedback gear (5) is sleeved on the potentiometer. The adjustable precise position sensor can be used for replacing the original feedback parts. Meanwhile, by using the adjustable precise position sensor, the gear dropping phenomenon under the conditions of faults, installing, debugging and the like is avoided.

The invention discloses an improved digital PID controller and a construction method thereof. On the basis of the traditional PID controller, the present invention adopts a double closed-loop mode, can effectively improve the tracking precision of the system and reduce the overshoot of the system on the basis of ensuring the stable precision and stability of the system. It has the characteristics of high control precision, good system stability, and low system overshoot, and does not increase debugging parameters, and the debugging process is simple and reliable.

The invention relates to an alarm current value settable bi-color fault indicator which comprises an alarm current setting switch, a current sensing element, a signal conditioning circuit, a processing unit and an optical signal generating circuit, wherein the current sensing element, the signal conditioning circuit, the processing unit and the optical signal generating circuit are sequentially and electrically connected in the signal transmitting direction. The processing unit comprises an A / D converter for digitalizing voltage signals output by the signal conditioning circuit, a comparator for comparing voltage signals, judging whether the voltage signals exceed a set awakening threshold value and then triggering and awakening a CPU if the voltage signals exceed the set awakening threshold value, and the CPU for controlling work of the A / D converter, calculating a digitalization result of the A / D converter and sending a fault indication control signal if the digitalization result shows that a fault is produced, wherein the control signal triggers the optical signal generating circuit to send an optical signal and give an alarm indication. The alarm current value settable bi-color fault indicator has the LED indication advantages of being high in accuracy, low power consumption, capable of achieving accurate multi-gear setting of alarm current values and various in output mode, and a user can perform flexible setting according to line load current level.

The invention discloses a processor chip emulation debugging system, comprising: an emulator and an integrated development environment module on a user computer; the emulator includes an emulation management module, an emulation chip and a program data memory; the integrated development environment module passes The communication channel is connected with the emulation management module of the emulator; the emulation management module is connected with the program data memory and the emulation chip through the data / address bus; the integrated development environment module has a data information initialization configuration window, and the user configures the user program download , the target data configuration file and target address that need to be downloaded at the same time, and the target data configuration file and target address that need to be downloaded again when the emulator is reset by the user configuration. The invention can automatically complete the downloading of the configuration data information according to the configuration situation of the user.