15results about How to "Simple on-site operation" patented technology

The invention discloses a high-performance fluid oscillator based on a turbulent flow column structure. The high-performance fluid oscillator comprises an oscillator body, and the oscillator body is provided with a fluid oscillator inlet, an oscillator inlet channel, a mixing chamber, a mixing chamber inlet, a mixing chamber outlet, a feedback channel, a feedback channel inlet, a feedback channel outlet, an oscillator outlet channel, a fluid oscillator outlet and turbulent flow columns; the fluid oscillator inlet is communicated with the oscillator inlet channel; the oscillator inlet channel is communicated with the feedback channel outlet and the mixing chamber inlet; the mixing chamber inlet is communicated with the mixing chamber; the mixing chamber is communicated with the mixing chamber outlet, the feedback channel inlet and the oscillator outlet channel; and a unique turbulent flow column structure is arranged at the rear end of the oscillator outlet channel. The device does not need extra power, utilizes the Coendall effect, the backflow feedback effect and the Karman vortex street effect of the airflow to generate periodic large-amplitude up-and-down swinging airflow at an outlet of the device, and is simple in structure, small in size, large in jet flow deflection angle, convenient to operate, reliable in running and free of maintenance.

The utility model discloses a vertical transferring device for an assembly type building prefabricated inner wall plate in a narrow space. The vertical transferring device solves the problems that in the prior art, the conveying space is limited, the installation efficiency is low, and the installation period is long. Platform trolley mechanisms are arranged on the two sides of a vertically-arranged prefabricated wall plate (2), an inverted-V-shaped supporting frame (9) is fixedly arranged on a trolley plate of the left flat trolley mechanism (7), a vertical sleeve (10) is fixedly arranged on the upper portion of the inverted-V-shaped supporting frame (9), a jacking jack (12) is arranged on the trolley plate under the vertical sleeve (10), a lifting rod (11) is movably connected in the vertical sleeve in a sleeved mode, and the lifting rod (11) is fixedly connected with the lifting jack (12). The lower end of the lifting rod is connected to an output shaft, extending upwards, of the jacking jack, the upper end of the lifting rod is connected with a left lifting block (13), and a left through hole (14) is formed in the left lifting block (13). And a lifting rod (18) is connected among the left through hole, the central through hole (4) and the right through hole (20) in a penetrating manner.

The invention belongs to the technical field of welding, and particularly relates to a portable double-wire laser TIG composite welding gun for a marine thin plate and application of the portable double-wire laser TIG composite welding gun. The portable double-wire laser TIG composite welding gun for the marine thin plate is suitable for manual welding of the marine thin plate of 0.7 mm-6mm within the assembly clearance of 2mm, an intelligent control system and the portable design are combined, so that equipment is easy to operate on site, a welding operator can adjust an interface according to parameters on a handheld handle, and the welding efficiency is improved. The working parameters of the TIG welding gun, the laser welding gun and the welding speed controller are adjusted, path control in the welding process is achieved through the auxiliary movement device, the welding wire cladding amount of single-pass welding can be increased, the production efficiency and welding seam forming are improved to a large extent, and efficient, high-quality and low-deformation welding is achieved.

This utility model provides a cable fixing structure for the handover test of a photovoltaic power station transformer substation, belonging to the technical field of cable fixing structures. The cable fixing structure includes: a wedge-shaped metal ring assembly divided into at least three circumferential segments, each segment having a spiral groove on its outer surface; a high-friction flexible pad tightly fitted to the inner circumferential surface of each segment; and an integral elastic steel ring surrounding the outer side of the metal ring assembly, the inner circumferential surface of which has a protruding ridge that engages with the spiral groove. When the elastic steel ring rotates relative to the metal ring assembly, the protruding ridge slides along the spiral groove, driving each wedge-shaped metal ring segment to synchronously contract radially and synchronously generate axial displacement, thus forming a self-tensioning clamp. This solves the problem of loose cable joints and uneven stress during the handover test caused by the inability of traditional fixing structures to adaptively clamp according to changes in cable tension.

The present invention discloses a method for optimizing the arrangement of measuring points of a grounding grid based on information quantity, and relates to a grounding grid detection technology. The method for optimizing the arrangement of measuring points randomly generates a measuring point arrangement sequence according to known accessible nodes of the grounding grid, calculates the information quantity of the measuring point arrangement sequence to calculate the fitness value, and then calculates the distance between each measuring point arrangement sequence and the alternative arrangement sequence, obtains the final iterative sequence after multiple iterations, and finally extracts the measuring points in the iterative sequence, and predicts the corrosion condition of the grounding grid according to the actual value of the branch resistance. The present invention adopts an optimization algorithm to select representative accessible nodes from accessible nodes as measuring points, thereby reducing the number of nodes that need to be measured and reducing the detection cost. The present invention selects accessible nodes with large amounts of information as measuring points, so that the collected measuring point data is more concentrated.

The utility model discloses a mining child-mother type pipe joint which comprises a first pipe fitting and a second pipe fitting, one end of the first pipe fitting is fixedly connected with a male joint, one end of the second pipe fitting is fixedly connected with a female joint, the outer side of the female joint is fixedly sleeved with an inner pipe, the outer side of the inner pipe is provided with an outer pipe, and the outer pipe is fixedly connected with the male joint. A plurality of fixing pieces are fixedly connected between the inner pipe and the outer pipe, a plurality of supporting blocks are fixedly connected to the outer side wall of the female connector, grooves are formed in the supporting blocks, traction plates are arranged in the grooves, and the traction plates are rotationally connected with the inner walls of the grooves through torsional spring rotating shafts. According to the utility model, the male joint and the female joint are convenient to assemble and fix by adopting clamping and fixing, the on-site operation is simple, and the connecting device is suitable for popularization and application.

This utility model discloses a feeding device for NdFeB smelting raw materials, comprising a thin-walled barrel, a reinforcing frame, and a lifting clamp. The reinforcing frame is fixedly fitted onto the outer wall of the thin-walled barrel. At least two lifting holes are evenly distributed above the thin-walled barrel, and through holes corresponding to the lifting holes are formed on the reinforcing frame. The hook of the lifting clamp is movably engaged within the corresponding lifting holes and through holes. Beneficial effects: This utility model has a simple structure and is easy to implement, ensuring that the alloy raw materials fall stably and reliably into the smelting crucible, avoiding material waste, reducing production costs, and ensuring product quality.

This utility model discloses a new energy mobile air compressor, comprising a separate air compressor unit and a mobile battery unit. The air compressor unit mainly includes a mobile chassis, a screw air compressor, a drive motor, a motor controller, and various cooling systems. The air compressor unit is connected to the mobile battery unit via a pluggable integrated composite power supply cable. This cable integrates both high-voltage power supply cables and low-voltage control cables, enabling the transmission of high-voltage DC power and information communication and control between the devices. The mobile battery unit can be a dedicated mobile energy storage box or a new energy vehicle with external discharge capabilities. This design separates the power source from the main unit, improving the flexibility and convenience of equipment use.

The invention belongs to the technical field of capping beam construction, and particularly discloses a large-span door type capping beam construction technology which is used for a capping beam with the span larger than 50 m and comprises the steps that a vertical foundation support is assembled on an existing structure; a support is erected on the periphery of the existing structure, a supporting mechanism is arranged at the bottom of the support and forms a stress face, and when the supporting mechanism is stressed to rotate, bending moment force generated by concentrated stress in the supporting mechanism is released; integrally hoisting the pre-assembled steel truss to a preset bent cap; and layered pouring is conducted on the steel truss hoisted to the preset bent cap, so that bent cap construction is completed. The vertical support is directly arranged on the existing structure, so that the reliable transmission of the load of the upper structure is realized; through the arrangement of the supporting mechanism, flexible adjustment of the elevation of the support is achieved, and the construction efficiency is remarkably improved; through the free rotation effect of the stress surface, the bending moment is prevented from being transmitted to the foundation, the stress performance of the support is effectively improved, and the overall design of the steel support is further optimized.

The utility model discloses a tool for a seamless steel tube cold rolling machine core rod clamping jaw installing machine. The tool comprises a balance support, a connecting base and an adjusting screw rod. The top surface of the connecting seat is rectangular; the balance support comprises a hanging ring, a hanging ring rod, a balance rod, a connecting rod, a first horizontal rod and a second horizontal rod. The lower ends of the two hanging ring rods are respectively connected to two corner positions at the rear end of the length direction of the connecting seat; the lower ends of the two balance rods are connected to the two corner positions of the front end in the length direction of the connecting base respectively. Two ends of the connecting rods are respectively connected to the hanging ring rod and the balancing rod on the same side in the length direction of the connecting seat; the two ends of the first horizontal rod are connected with the upper ends of the two balance rods respectively. Two ends of the second horizontal rod are respectively connected with the upper ends of the two hanging ring rods; the lifting ring is arranged in the middle of the second horizontal rod; and the adjusting screw rod is arranged on the connecting seat. On the basis of ensuring the mounting quality and efficiency of the mandril clamping jaw, the repeated labor intensity is reduced, and the potential safety hazard is eliminated.

The utility model discloses a mining hydraulic support withdrawing monitoring system. The mining hydraulic support withdrawing monitoring system comprises a first monitoring system and a second monitoring system, wherein the first monitoring system is arranged on a hydraulic support and used for monitoring the state of the hydraulic support in the withdrawing process of the hydraulic support; the second monitoring system is arranged on a worker and used for monitoring the state of the worker in the withdrawing process of the hydraulic support; the first monitoring system is connected with the second monitoring system and used for monitoring the operation state of the first monitoring system and the operation state of the second monitoring system; and the third monitoring system is used for monitoring the working area in the withdrawing process of the hydraulic support. According to the mining hydraulic support withdrawing monitoring system provided by the utility model, each withdrawing controller reports the state information of each support to the monitoring host by adopting a layered network topology structure, and the monitoring host performs remote centralized control on the premise of mastering various state data on site, so that the safety is improved.

The utility model relates to the technical field of plastic stone rockery construction, in particular to a rockery reinforcing mesh support, and aims to solve the problem that the construction quality is low due to the fact that existing plastic stone rockery construction depends on manual bending of reinforcing steel bars on site, the rockery reinforcing mesh support comprises a supporting assembly used for supporting the weight of the whole structure, and the supporting assembly comprises a bearing beam and a supporting framework; the bearing beam is installed on the ground, and the supporting framework is installed on the bearing beam. A reinforcing mesh is arranged on the supporting assembly, the reinforcing mesh comprises a plurality of sub-meshes, and the sub-meshes are installed on the supporting framework; the supporting framework is provided with a connecting assembly, the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is used for connecting the sub-net pieces and the supporting framework, and the second connecting piece is used for connecting the adjacent sub-net pieces. The construction method has the effect of improving the construction quality of the plastic stone rockery.

This invention relates to the field of scour detection simulation of offshore wind turbine monopile foundations, specifically to a method for detecting the scour depth of offshore wind turbine monopile foundations based on a semi-analytical model. The method includes: establishing a pile-water-soil interaction model to obtain the dynamic control equations of the pile, water, and soil; analyzing the model boundary conditions; using Laplace transform to solve the control equations in the frequency domain to obtain solutions for pile displacement, seawater, and seabed potential functions containing unknowns; solving for the unknowns using the boundary conditions; obtaining the natural frequencies and mode shapes of the pile foundation at different scour depths; applying external excitation at the pile top in the field, then measuring the acceleration time history curves at different scour depths using pile acceleration sensors and vibration signal acquisition instruments, and then obtaining the natural frequencies of the pile-water-soil system through FFT transformation, which are then compared with the natural frequencies of the detection model to obtain the scour depth in the field.

The utility model relates to a connection change device for transformer. A connection change device for transformer comprises: a plurality of connection points, each connection point is connected with different coil tap in a plurality of coil taps of the high voltage side winding of transformer;A plurality of voltage equalizing balls, each voltage equalizing ball is configured to accommodate one of a plurality of connection nodes and is electrically connected with the corresponding connection point, so that the electric field around the corresponding connection point is homogenized;One or more connecting lines, each connecting line is configured to connect two connection points in a plurality of connection points via a corresponding voltage equalizing ball in a plurality of voltage equalizing balls, wherein the voltage that can be borne on the high voltage side winding of transformer is changed by changing the connection mode of one or more connecting lines and a plurality of connection points;And insulating oil is configured to immerse each connecting line and a plurality of voltage equalizing balls to insulate each connecting line and a plurality of voltage equalizing balls. Thus, the cost of connection change of transformer is significantly reduced.

The invention relates to a coaxial connector and a replaceable assembly thereof. The replaceable assembly comprises a cable, a second inner conductor and a middle connecting sleeve. The cable includes a first inner conductor and a first outer conductor. The first outer conductor is sleeved outside the first inner conductor and is insulated from the first inner conductor. And the second inner conductor is welded with the first inner conductor. The middle connecting sleeve is sleeved outside the first outer conductor and is electrically connected with the first outer conductor, and the middle connecting sleeve is detachably sleeved inside and fixed on the connector main body and is electrically connected with the connector main body. According to the coaxial connector and the replaceable assembly thereof, when maintenance is needed, the replaceable assembly is directly replaced, the connector main body is reserved and reused, and resource waste is reduced. The replaceable assembly is a standardized component, and in the field maintenance process, the replaceable assembly can be replaced, so that expensive field service time, travel cost and potential loss caused by improper maintenance can be saved.