15results about How to "Improve complex structure" patented technology

The invention discloses a systematized bundling method for high-voltage waste cables, and belongs to the field of warehouse logistics automation. A working platform capable of fixing and compressing cable bundles is arranged, and a plurality of cable seats are arranged on the working platform; carrying out transverse and vertical extrusion treatment on the placed cable bundle; binding operation is completed through an arrow penetrating type binding machine; measuring the weight of the cable bundle by using a weight sensor arranged at the bottom of each cable seat; data support is provided for calculating the gravity center position of the bundled cable bundle; printing information labels including cable specifications, binding dates and total weight, pasting the information labels on any binding tape, and meanwhile, archiving data to a warehouse database; the horizontal gravity center position of the cable bundle is calculated according to data of all the weight sensors, indicator lamps of cable bases located on the two sides of the gravity center position are lightened, a forklift operator is guided to hoist the cable bundle at the cable base position between the two lamps, and it is ensured that the cable bundle is safely transferred to a storage area. And the method is especially suitable for classified management of cables with different lengths and bending after construction.

This invention discloses an automatic planning method and system for spraying paths of 3D workpieces based on visual point clouds, specifically relating to the field of automatic spraying path planning technology. By constructing a spraying space coupling description set and a spraying deployment constraint index, the method achieves a quantitative characterization of the degree of restriction of spraying space in different surface areas. Combined with the safety margin of spraying distance and the adjustable range of spray gun posture, a physical accessibility assessment quantity for spraying is formed, which automatically divides the spraying area into a stable spraying area, a restricted spraying area, and a physically unsprayable area. Thus, in the path generation stage, differentiated strategies such as continuous spraying, segmented compensation, and path reconstruction are adopted for different areas, which significantly improves the coating coverage integrity, thickness consistency, and process reliability of complex 3D workpieces in the actual spraying process. It also enhances the system's adaptability to structural complexity and working condition changes in real coal mining machinery spraying sites and reduces the risk of manual repair and rework.

The present invention discloses a structural multiplexing type low-frequency oscillator, including a base, a bowl-shaped oscillating arm and a plurality of feeding coaxial lines, wherein the bowl-shaped oscillating arm is arranged above the base and is surrounded by a plurality of oscillating arm units, each oscillating arm unit includes an oscillating arm main body and an oscillating arm bending part, the oscillating arm main body includes a bottom and a side wall, the oscillating arm bending part is arranged above the side wall, the bottoms of the plurality of oscillating arm main bodies form a high-frequency reflection plate when high and low frequencies are coaxially nested in the same plane, and the feeding coaxial line is connected to the feeding port on the bottom of the oscillating arm main body. The present invention widens the oscillator arm into a full metal surface structure, increases the metal area of ​​the oscillating arm and the coupling degree between the oscillating arms, thereby effectively increasing the working bandwidth of the antenna while reducing the size of the antenna; the bottom of the oscillating arm after two bends is a planar structure, which can be reused as the reflection ground structure required by the high-frequency antenna when the high-frequency antenna is coaxially embedded, thereby effectively eliminating the high-frequency reflection plate that was originally required extra, and simplifying the overall structure of the antenna.

The utility model discloses a combined multi-mode ion grid electrode, comprising a screen grid and an acceleration grid, the screen grid is connected with an upstream ionization chamber, the screen grid is provided with a plurality of first through holes with parallel axes, and the first through holes form a first lead-out channel for leading out cations in plasma; the acceleration grid is located at the downstream of the screen grid and is spaced from the screen grid, a plurality of second through holes are formed in the acceleration grid, the second through holes form second leading-out channels for leading out positive ions in the plasma, the number of the second through holes is consistent with that of the first through holes, each second through hole is coaxial with one first through hole in the screen grid, and the first through holes are communicated with the first through holes in the screen grid. A cavity is formed in the acceleration grid, the cavity is not communicated with the second through hole, the cavity is communicated with a cold air source through a cold air connector in the surface of the acceleration grid, and a miniature conical spray pipe penetrating through the surface of the acceleration grid is arranged on the end face, away from the screen grid, in the cavity. According to the utility model, simple switching of multiple propulsion modes is realized under the condition that the weight of the grid electrode is not increased.

The application relates to a method for ultrasonic-assisted construction of a magnetic liquid metal complex structure, which comprises the following steps: a soluble resin positive mold with a target complex spatial structure is manufactured by adopting a digital light processing 3D printing technology; an elastic PDMS mold with a three-dimensional closed cavity is prepared by adopting a PDMS reverse mold technology; neodymium iron boron magnetic particles are mixed with liquid metal gallium to prepare a uniform magnetic liquid metal composite material; the PDMS mold is installed on an ultrasonic coupling platform, the magnetic liquid metal composite material is injected into the pouring port of the mold, and an ultrasonic wave field is applied to the PDMS mold during the pouring process; and the PDMS mold is dissolved by using a solvent at a temperature lower than the melting point of the magnetic liquid metal, so that an independent magnetic liquid metal complex three-dimensional structure is obtained. The application realizes physical intervention on the flow state of the liquid metal and dynamic regulation on the spatial distribution of particles by using ultrasonic vibration field pouring of the magnetic liquid metal, and improves the filling capacity and morphology fidelity of the liquid metal in the three-dimensional complex structure.

The application discloses a low-temperature biomass gasification furnace and a dry carbon and fuel gas coupling boiler process, and belongs to the technical field of biomass gasification furnaces. The low-temperature biomass gasification furnace comprises a top plate, an upper cylinder, a middle cylinder, a lower cylinder and a discharging cylinder, the top plate, the upper cylinder, the middle cylinder, the lower cylinder and the discharging cylinder are sequentially arranged from top to bottom, and the top plate, the upper cylinder, the middle cylinder, the lower cylinder and the discharging cylinder are connected through assembly, the outside of the gasification furnace body is supported by a supporting unit, and a discharging unit connected through an auxiliary transition cylinder is arranged at the bottom of the gasification furnace body and used for discharging. The application has the beneficial effects that the auxiliary transition cylinder is clamped with the outside of the discharging cylinder of the gasification furnace body, a stable transition channel is provided for carbon residues, the carbon residues falling from the discharging cylinder can smoothly enter the inside of an auger conveyor, and the carbon residues are prevented from being accumulated, blocked or splashed outward at a discharging port, so that the overall structure of the equipment is more compact and reasonable.

The invention provides a sleeve type connecting pipe, the first section of which comprises a pivoting part, the sleeve is provided with a limiting protrusion, the sleeve is sleeved into the first section so that the limiting protrusion is installed in place, after being installed in place, the limiting protrusion is limitedly matched with the limiting surface of the pivoting part, the sleeve is provided with a compression spring in the interval between the sleeve connection of the first section, after being installed in place, the compression spring is simultaneously limited between the limiting part of the sleeve and the spring limiting end in the process of sleeving the sleeve, when the locking of the sleeve is released, the compression spring releases the elastic potential energy to drive the sleeve to move to release the limiting of the sleeve connection of the second section, at the same time, at the rotatable position, the compression state of the compression spring is limitedly matched with the limiting surface to maintain the sleeve at the rotatable position, the invention has the structure of automatically moving the sleeve and the limiting structure of better maintaining the sleeve at the rotatable position, and is convenient to assemble; the invention also provides a dust collector adopting the sleeve type connecting pipe.

The utility model provides a massage module and chair, massage module includes track and can move along the walking unit of track, the walking unit includes shell, massage head, drive mechanism, massage transmission mechanism, walking piece and clutch mechanism, drive mechanism and massage head pass through massage transmission mechanism transmission connection, and the clutch mechanism passes through the massage transmission mechanism transmission connection. The driving mechanism can drive the massage head to move relative to the shell, and the clutch mechanism has a linkage state and a separation state; when the clutch mechanism is in the linkage state, the driving mechanism and the walking piece are in transmission connection through the clutch mechanism, the driving mechanism can drive the walking piece to move relative to the shell, and therefore the walking unit moves along the track. And when the clutch mechanism is in the separated state, the transmission connection between the driving mechanism and the walking piece is disconnected. The massage module is simple in structure, few in driving mechanism and low in cost.

The invention provides an active radial clearance design method based on thermal expansion coefficient customization, relates to the technical field of aero-engines, and aims to solve the technical problem that aero-engine clearance design is difficult to meet rapid and variable requirements of various working conditions. The engine clearance design method comprises the steps that clearances of an engine under all working conditions are obtained, and target clearances of the engine under all working conditions are determined; based on the at least one target gap, the target deformation amount of the cartridge receiver under the corresponding working condition is determined, and the target deformation amount is the radial deformation amount of the cartridge receiver; calculating a target thermal expansion coefficient of the casing under the corresponding working condition based on each target deformation amount; and adjusting the structure of the cartridge receiver to enable the cartridge receiver to meet the target thermal expansion coefficient under the corresponding working condition. According to the engine clearance design method, the idea of active clearance control is used for reference, and the principle of passive clearance control is utilized, so that the customized casing realizes the demand control of the rotor-static clearance under each working condition according to the target thermal expansion coefficient.

The invention provides a voltage control and detection circuit, a power conversion device and a charging pile, and belongs to the technical field of circuits. A detection voltage output by an operational amplifier circuit in the voltage control and detection circuit can reflect an error between a reference voltage and an output partial voltage, so that a control circuit realizes closed-loop control of the output voltage of the DC / DC conversion circuit based on the detection voltage. Moreover, the detection voltage can reflect the magnitude of the ripple voltage in the output voltage, so that the control circuit achieves ripple suppression of the output voltage. The voltage control and detection circuit has abundant functions, and can effectively avoid increasing the structural complexity and cost of the power conversion device. Moreover, the operational amplification circuit has a proportional amplification function and can amplify the voltage difference between the reference voltage and the output divided voltage, so that the sampling precision of the voltage can be ensured even if a high-resolution ADC (Analog to Digital Converter) is not used. Therefore, the dependence on the high-resolution ADC is effectively reduced.

The utility model discloses a tower body structure of an ultra-large rectifying tower, belongs to the technical field of industrial equipment, and provides the tower body structure of the ultra-large rectifying tower, which is more convenient to overhaul and comprises a base, a tower body is fixedly connected onto the base, a gas phase discharge end is arranged at the top of the tower body, and a liquid phase discharge end is arranged at the bottom of the tower body. A maintenance window is formed in the side wall of the tower body, a turnover door is rotationally connected into the maintenance window, a hydraulic cylinder is further connected to the base, a ladder is rotationally connected to the upper end of the hydraulic cylinder, the ladder is rotationally connected with the turnover door, the hydraulic cylinder is suitable for changing the dip angle of the turnover door through the ladder, and the turnover door has a horizontal limit angle and a vertical limit angle. The lifting escalator structure is designed to drive the multiple turnover door structures at the same time, so that a maintainer can enter and exit from the interior of the tower body from different heights outside the tower body, the activity amount of the maintainer in the tower body is reduced, and detection and maintenance operation in the tower body is more convenient; and the additional structure is relatively simple.

The present invention discloses an electric wire fixing bracket, a fixing bracket mounting structure and a washing machine, which are used for an electrical appliance, and include a door hinge and a fixing bracket, wherein the door hinge is fixed to the electrical appliance; the fixing bracket is detachably connected to the door hinge, and the fixing bracket is used to fix the electric wire. The fixing bracket is detachably connected to the bolt without changing the structure of the washing machine case and the door hinge, and without increasing the structural complexity of the washing machine case and the door hinge. At the same time, since the bolt and the washing machine case are detachably connected by threaded connection, when the door hinge is assembled to the washing machine case by the bolt, the fixing bracket can also be connected to the door hinge at the same time, and the installation of the fixing bracket and the door hinge can be completed in a centralized manner, thereby speeding up the assembly efficiency.

The present invention relates to the technical field of cable films, and specifically provides a high-strength polytetrafluoroethylene cable film and a preparation method thereof, wherein the polytetrafluoroethylene cable film comprises the following raw materials in parts by weight: 70-90 parts of polytetrafluoroethylene, 10-20 parts of alumina nanofibers, 7-10 parts of UiO type MOFs, 2-4 parts of silane coupling agents, 3-5 parts of antioxidants, and 1-2 parts of triphenyl phosphate. The present invention introduces alumina nanofibers and UiO type MOFs materials into a polytetrafluoroethylene matrix, and closely combines them with polytetrafluoroethylene, thereby significantly improving the strength and flexibility of the cable film, while not affecting its insulation performance, and can meet higher application requirements.

The utility model belongs to the field of kiln firing, and particularly relates to a material correcting device and a continuous firing kiln thereof, and the material correcting device comprises a driving mechanism and a correcting mechanism; the correcting mechanism comprises a sliding rod penetrating through the furnace wall of the furnace body and a correcting plate arranged at the end, located on the inner wall of the furnace body, of the sliding rod. The driving mechanism is arranged outside the furnace body, and the output end of the driving mechanism is connected with the portion, located on the outer wall of the furnace body, of the sliding rod and used for driving the sliding rod to slide on the furnace wall of the furnace body. According to the material correcting device, the driving mechanism is arranged outside the furnace body and is not influenced by a high-temperature dust environment in the furnace body, the reliability is high, and the service life is long. And the sliding rod extends into the furnace body, so that the material on the material conveying mechanism in the furnace body can be guided, and the position can be corrected.

The invention provides an additional phase noise degradation suppression device for a tree-shaped radio frequency optical fiber transmission network in a vibration scene, and aims to solve the problems that the near-end phase noise of a reference / radio frequency signal transmitted by a tree-shaped radio frequency optical fiber transmission distribution network in a current active phased-array antenna array in the vibration scene is seriously raised, the structure of a traditional vibration reduction measure is complex, and the cost is high. And the maintenance interchangeability is poor. An optical fiber phase shift device is introduced after electro-optical conversion, phase disturbance is added to an intensity-modulated radio-over-fiber signal output by a directly modulated laser, and original intensity modulation-direct detection of scattered light field distribution in a radio frequency optical fiber transmission link is changed; especially, the interference effect of a double Rayleigh scattering light field on an optical carrier radio frequency transmission signal light field is destroyed, so that the influence of scattering light enhanced by external vibration on transmission signal light is greatly weakened, and the purpose that a radio frequency optical fiber transmission distribution network can still keep high signal transmission quality in a vibration scene is achieved.