9results about How to "Small swing" patented technology

The invention discloses an intelligent container portal crane, relates to the field of portal cranes, solves the problems that when an existing container portal crane is used, the stability of container hoisting is poor, and meanwhile, it is difficult to stably place a container to a needed position, and comprises a portal frame, a lifting hook, a hoisting mechanism, a stabilizing mechanism and a clamping mechanism; the lifting hook is controlled by the lifting mechanism to move and ascend and descend, the lifting function is completed, a certain amount of liquid is filled into the corrugated pipe in the lifting process of the lifting hook, the swing amplitude of the lifting hook in the lifting process is reduced, and the lifting hook can be stably lifted. And meanwhile, when the container is lifted to abut against the bottom of the control rod, liquid in the corrugated pipe is gradually pumped out, continuous rising of the lifting hook is prevented from being influenced, the top of the container is subjected to abutting limiting through the control rod, meanwhile, the clamping plates are linked to overturn downwards, the two sides of the container are subjected to abutting clamping, and the shaking amplitude is relieved.

This invention discloses a conductive tip processing device and method. It precisely processes used conductive tips that have reached the end of their service life, causing them to deform and changing the original straight aperture to a curved aperture. This increases the contact area and friction between the welding wire and the inner wall of the conductive tip, restricts the oscillation amplitude of the welding wire passing through, restores the conductive tip's conductivity stability and basic function of limiting and constraining the welding wire end, thus meeting the requirements of the welding process. The purpose of this invention is to enable the reuse of used conductive tips, effectively extend their service life, improve the utilization rate of precious non-ferrous metals, and reduce the waste of scarce resources.

The present invention discloses a high-efficiency, high-precision, low-delay successive approximation analog-to-digital converter based on pre-quantization, comprising: a digital-to-analog conversion capacitor array, a detection quantization module, a sampling noise elimination module and a successive approximation quantization module; the digital-to-analog conversion capacitor array is used for sampling and realizing the successive approximation process, and includes a main capacitor and a pre-quantization capacitor; in the second sampling stage of storing sampling noise, when the input signal swing is greater than a preset swing threshold, the detection quantization module controls the pre-quantization capacitor to reduce the input signal swing; the sampling noise elimination module eliminates the sampling noise, and the successive approximation quantization module performs quantization to generate a quantization result. The present invention improves the energy efficiency of the high-precision, low-delay successive approximation analog-to-digital converter, reduces power consumption and area overhead, and has good overall performance.

The utility model discloses a regulating valve for a compartment bag type dust collector, which relates to the field of industrial dust removal and comprises a cylinder and a valve plate, a push rod is arranged at the output end of the cylinder, and the valve plate for blocking an air hole is in ball joint with the end part of the push rod; a connecting rod is arranged on the side wall back to the valve plate, a clamping ring matched with the air hole is arranged on the inner circumferential wall of the air hole, a grating is arranged on the inner circumferential wall of the clamping ring, and a sleeve allowing the connecting rod to movably penetrate through is arranged in the middle of the grating. The problems that in an existing dust remover, due to the fact that an air inlet duct and an air outlet duct are opened and closed frequently, a corresponding valve is not sealed tightly, especially in the dust removal process, newly-entering smoke still enters a dust removal cavity when the dust removal process is paused, and the dust removal progress is greatly hindered are solved; therefore, an existing valve structure is optimally designed, and the valve plate and the air holes are tightly attached when the air holes are frequently opened and closed, so that the normal operation of the dust removal process of the dust remover is guaranteed.

The utility model discloses a simple chamfering device used for multi-pipe-diameter chamfering, which comprises a shell, a chamfering device, a plurality of connecting rods and a plurality of connecting rods, the shell is in a non-closed cylindrical shape, and the side wall of the shell is provided with an opening to form a non-closed structure; the first steps are arranged on the inner wall of the shell, and the number of the first steps is at least one; the first groove body is formed in the radial inner wall of the shell and located on the outer side of the circumferential direction of the first step, and the number of the first groove body is at least one; the blade is arranged in a first matching groove in the shell, and the first matching groove is located in the circumferential range of the first step; wherein when the number of the first steps is larger than one, the first steps are arranged in the direction from the axial end opening of the shell to the center of the shell, the diameters of all the first steps in the direction from the axial end opening of the shell to the center of the shell are sequentially reduced, the swing amplitude is small when the shell rotates, and chamfering can be conveniently conducted on the end opening of the pipe in a narrow space; and the first step can meet the chamfering positioning requirements of pipes with different pipe diameters.

The utility model relates to the technical field of hoisting mechanisms, in particular to a single-drum steel wire rope anti-dropping and swing-limiting device which comprises a trolley frame, a drum is mounted on the upper frame face of the trolley frame, a long-strip-shaped hole with the length direction in the axial direction of the drum is formed in the side, corresponding to the unwinding side of the drum, of the trolley frame, and mounting plates are fixed to the hole walls of the two ends of the lower portion of the long-strip-shaped hole. Two limiting rollers which are arranged side by side in the width direction of the long-strip-shaped hole in a spaced mode are rotationally installed between the two installation plates, two limiting plates corresponding to the two installation plates respectively are arranged between the two limiting rollers, and buffer springs are connected between the centers of the plate faces of the limiting plates and the corresponding installation plates. The two side edges of the limiting plate are arc-shaped edges corresponding to the roller surface of the limiting roller, and rotating rollers axially perpendicular to the limiting roller are erected at the upper end and the lower end of the limiting plate; the single-drum steel wire rope anti-falling and swing-limiting device not only can avoid friction of the steel wire rope, but also can limit swing and stabilize lifting.

A signal transmission circuit includes: a driver configured to generate a first signal; a band pass filter configured to filter the first signal to generate a second signal; a routing trace, the second signal passing through the routing trace to generate a third signal; and at least one receiver configured to receive the third signal to generate an output signal. In this way, the band-pass filter can be used to generate a second signal having a smaller swing and a steeper high-frequency component, and the second signal can be transmitted through the routing line with minimum loss interconnection attenuation. Therefore, the band-pass filter compensates the routing channel loss of the routing line, and even if no repeater is placed on the routing line or only a small number of repeaters are placed on the routing line, the third signal can keep good quality.

The present invention discloses a special hanger for butterfly arch bridge, including a hanger and a hanger seat, wherein an upper connector is provided at the lower end of the hanger, a lower connector is provided at the upper end of the hanger seat, a threaded inner sleeve is provided at the upper end surface of the lower connector, a threaded rod acting on the threaded inner sleeve is provided in the upper connector, an extrusion groove is provided around the inner wall of the lower connector, and a heat transfer oil bag is filled in the extrusion groove. The special hanger for butterfly arch bridge described in the present invention, when exposed to sunlight, irradiates the upper connector, concentrates heat through the heat-conducting metal layer, and transfers it to the heat transfer oil bag located in the extrusion groove. The heat transfer oil bag has the characteristic of thermal expansion and contraction, and its volume increases due to the increase in temperature, and acts on several groups of external protrusions to expand, driving the cleaning bag in a stretched state to retract, and slowly wrapping around the exposed part of the threaded rod and the outside of the threaded inner sleeve, so that it is suitable for different working conditions and brings better prospects for use.

The invention belongs to the field of oscillators, particularly relates to a differential cross-coupling voltage-controlled oscillator of a CLASS-D structure, and aims to solve the problem that the advantages of low power consumption, extremely low noise, wide frequency regulation range and complete output waveform cannot be achieved in the prior art. According to the invention, a resonance stage module and a filtering stage module are connected through blocking capacitors Cm1 and Cm2; the resonance level module is based on a CLASS-D structure and is used for generating an oscillation signal with extremely low noise, and the frequency of the oscillation signal is adjusted through frequency band selection and a variable capacitance diode; and the filtering stage module is used for carrying out band-pass filtering and swing adjustment on the signal generated by the resonance stage module, realizing distortion waveform recovery and outputting a pair of differential sine wave signals. The circuit has the advantages of extremely low noise, wide frequency adjustment range, good signal integrity, low power consumption and the like.