12results about How to "Reduced accuracy requirements" patented technology

The invention relates to the technical field of robots, and discloses a humanoid robot lower limb system, comprising: a crotch portion comprising a rope-driven motor; the thighs are installed at the two ends of the crotch respectively and can rotate along a pitch axis and a roll axis; the shanks are installed at the lower ends of the two thighs respectively, a knee joint motor is installed on the upper portion of each thigh, and the shanks are driven to rotate relative to the thighs through the knee joint motors and the synchronous belts; the ankles are mounted at the lower ends of the two shanks respectively; the rope drive motor drives the shank opposite to the ankle to rotate through the steel wire rope. The synchronous belt has the characteristics of high transmission precision and strong anti-interference capability in a non-severe environment, the rope drive has the characteristic of high sensitivity, and all motors are intensively arranged at the uppermost end of the leg structure, so that the center of gravity is concentrated on the upper part, the inertia of leg movement is reduced, and the movement control is facilitated. Meanwhile, the principle that the left leg and the right leg are designed into blocks is adopted, so that the left leg and the right leg can rotate independently, and walking in multiple terrains is facilitated.

The multi-station punching device for aluminum profile machining comprises a base, four supporting columns are fixed to the base, the plane of a hollow polygon prism is provided with a limiting groove set matched with an aluminum profile for placement and matched with a punch for use, and a driving mechanism for driving two conveying pipes to rotate synchronously is installed on a lifting plate. The driving mechanism rotates the hollow polygon prism at a fixed angle and keeps static, one plane of the static hollow polygon prism is opposite to the punch, the driving piece drives the lifting plate to move up and down, and aluminum profiles on the hollow polygon prism can be punched one by one in cooperation with the driving mechanism. The problems that in the prior art, the punching efficiency is low, and potential safety hazards exist are avoided, by arranging the multi-station hollow polygon prism distributed annularly, the overall size of equipment is reduced, and the functions of correcting, limiting, cooling and the like of the U-shaped aluminum gusset plate can also be achieved.

The invention relates to the technical field of curtain walls, and discloses a multifunctional green assembly type curtain wall which comprises a window frame, a glass plate is arranged in the window frame, an upper pressing assembly is arranged in the window frame and located on the top of the glass plate, and clamping assemblies are arranged in the window frame and located on the left side and the right side of the glass plate. A lower supporting assembly is arranged in the window frame and located at the bottom of the glass plate, and connecting assemblies are arranged on the left side and the right side of the back of the window frame. The bolt can slide along the first X-axis groove and the second X-axis groove, so that the corner connector can move along the X axis relative to the supporting table and move front and back relative to the bolt, the corner connector can move along the Y axis relative to the supporting table, and the corner connector can move up and down along the Z axis by rotating the threaded rod. When the groove-shaped support is installed in advance, the requirement for the accuracy of the installation position of the groove-shaped support is not high, the groove-shaped support can be installed in the early stage conveniently, the curtain wall can be installed conveniently and rapidly, and the installation efficiency is guaranteed.

The invention discloses a three-dimensional POI matching method based on remote sensing and digital twinning and a storage medium, and the method comprises the steps: building a twinning model sample library according to three-dimensional point-of-interest models in a digital twinning scene, and setting labels for the three-dimensional point-of-interest models, the labels including categories, colors and shapes; performing target identification in the remote sensing image to obtain a target object area and a label of a target object; according to the label of the target object, performing retrieval matching in the twin model sample library to obtain a three-dimensional interest point model corresponding to the target object; and placing the three-dimensional interest point model corresponding to the target object in the target object area. According to the invention, automatic matching and placement of the three-dimensional interest point model of the remote sensing image and the digital twinborn scene can be realized.

The invention belongs to the technical field of flue gas desulfurization and denitrification, and particularly relates to a method for controlling the desulfurization and denitrification ammonia injection amount of active coke. The invention provides a method for controlling the ammonia spraying amount of active coke desulfurization and denitrification. The method comprises the following steps: calculating the amount of ammonia adsorbed by active coke discharged from an active coke desulfurization and denitrification reaction tower in a reference period; calculating the content ratio of ammonia in the active coke discharged from the active coke desulfurization and denitrification reaction tower; calculating the total amount of ammonia adsorbed by active coke in the reaction tower; calculating the total amount of ammonia adsorbed by active coke in the reaction tower in the ammonia water flow adjusting period; calculating the adjustment flow of ammonia water according to the difference between the reference period and the total amount of ammonia adsorbed by active coke of the reaction tower in the ammonia water flow adjustment period, and further determining the flow of the adjusted ammonia water. According to the control method for the active coke desulfurization and denitrification ammonia injection amount, the concentration fluctuation of NOx at an outlet is small, and waste of ammonia water is avoided.

The invention provides a rotor magnet fixing structure which comprises a magnetic base body, a plurality of magnets and two end face silicon steel sheets. The magnetic substrate is formed by overlapping a plurality of silicon steel sheets, and a bonding area is formed on the outer periphery of the magnetic substrate; the inner side edges of the magnets are arranged in the combination area in a matched mode, and grooves are formed in the upper end faces and the lower end faces of at least part of the magnets in a concave mode respectively; the two end face silicon steel sheets are arranged on the upper end face and the lower end face of the magnetic base body respectively, at least one fixing petal is arranged on each end face silicon steel sheet in an outward protruding mode, the fixing petals cover the upper end faces and the lower end faces of the magnets respectively, and at least part of the fixing petals are respectively provided with a buckle in an axial protruding mode. And the grooves on the upper and lower end faces of the plurality of magnets are correspondingly interfered and buckled. Therefore, the number of elements, the cost and the precision requirement are reduced, the friction force capable of being borne by an interface is improved, the fixing stability is improved, and the risks that any element in the rotor is damaged and the rotor breaks down and loses efficacy are greatly reduced.

This application provides an automatic traffic cone placement device, including an engineering vehicle, a placement mechanism, a traffic cone compartment, and a conveying assembly. The placement mechanism includes a base, a connecting rod, and a clamping assembly. The clamping assembly clamps the traffic cones in the traffic cone compartment vertically with the cones facing downwards, and flips them away from the base via the connecting rod, so that the traffic cones are placed on the road surface vertically with the cones facing upwards. During the clamping process, the center of gravity of the traffic cones is close to the clamping assembly, resulting in high clamping stability. The placement of the traffic cones is completed by a set of rotating joints on the connecting rod and the base, eliminating the need for multiple rotating joints for precise coordination. This device has the advantages of low precision requirements, high clamping stability, low implementation cost, convenient operation, and ease of promotion and implementation.

The present invention discloses a modular reconfigurable adaptive assembly work platform and an assembly method, wherein the assembly work platform includes: a platform module, a support assembly, a guardrail, a trapezoidal module, a plate-type limiter, and an extension block module; the platform module includes a plurality of tower units, and the tower unit is spliced ​​by a plurality of step module assemblies; the support assembly includes a plurality of column modules, and the support assembly is arranged at the bottom of the platform module; the guardrail includes a horizontal guardrail and an oblique guardrail, and the horizontal guardrail is arranged on both sides of the platform module; a trapezoidal module is arranged at one end or both ends of the platform module, and oblique guardrails are arranged on both sides of the trapezoidal module; a plate-type limiter is arranged against one side of the platform module; the extension block module is arranged on the plate-type limiter, and the upper plane of the extension block module is parallel to the upper surface of the platform module. This kind of assembly work platform can be modularly assembled, has strong reconfigurability and strong adaptability; the assembly method is relatively easy, and the quality of the platform is easy to control.

This utility model discloses a wireless charging mechanism and charging parking space for automobiles, relating to the field of charging equipment technology. It includes a lifting mechanism, a frame, a charging module, a sliding rod assembly, and two drive mechanisms. The lifting mechanism drives the frame to move up and down. In use, when a vehicle is parked in the parking space, the lifting mechanism drives the frame to move up and down, adjusting the height of the charging module to match the vehicle's battery height. When the vehicle's parking position is inaccurate or the battery positions differ between vehicles, the two drive mechanisms drive the first and second sliding rods to slide. Since the first and second sliding rods are perpendicular to each other, the horizontal position of the charging module can be adjusted to ensure it matches the vehicle's battery position for charging. This design has lower requirements for the accuracy of the vehicle's parking position and is adaptable to charging different vehicle models.

The utility model discloses a frame-type field effect transistor, which belongs to the field of electronic circuit components and reduces the requirement on welding precision, so that the requirement on a chip mounter is lower, and the yield of product production is improved. The packaging structure mainly comprises a plastic packaging body and a chip, the chip is fixed in the plastic packaging body, and the packaging structure is characterized in that a grid electrode frame, a drain electrode frame and a source electrode frame are arranged on the plastic packaging body; the grid electrode frame, the drain electrode frame and the source electrode frame are welded on the chip; a welding module I is arranged on the drain electrode frame; a welding module II is arranged on the source electrode frame; the welding modules I and the welding modules II are arranged in a staggered mode. According to the utility model, the frame is adopted as the substrate, the ports of the same type of the chip are partitioned, the substrate of the frame is designed according to the partitions of the chip, and then the chip is welded on the partitioned frame in a flip-chip manner, so that compared with spot welding flip-chip welding, the requirement on accuracy is lower, and the cost of the frame is also lower.

The utility model relates to the field of coiled material processing discloses an automatic inflation and deflation gas expansion axle system, including frame, center total axle, gas expansion axle and pneumatic slip ring, and the frame includes mounting support, the gas expansion axle gas expansion axle has for the air inlet and outlet passage of inflation expansion or deflation retraction, and the inside one end of air inlet and outlet passage communicates with the gas expansion axle inner chamber, and the outside one end of air inlet and outlet passage is provided with the gas pipe, the pneumatic slip ring fixed mounting is in the end of gas expansion axle, and the pneumatic slip ring includes rotary seat and fixed seat, and rotary seat fixed mounting is in the one end of gas expansion axle setting gas pipe, and the center of rotary seat is equipped with the radial extension connector, and the connector is connected with the gas pipe line of gas expansion axle, the fixed seat is equipped with the connecting port, and the connecting port is connected with the gas source through the pipeline, the utility model realizes the automatic inflation and deflation function of gas expansion axle under the rotation state, ensures that the gas circuit is stably connected under the dynamics, and the fixed seat connecting port of gas source pipeline connects the pneumatic slip ring, reduces the precision requirement of gas circuit connection, and convenient operation.

The present invention belongs to the technical field of LED display, and relates to a locking device of an LED display box with adjustable splicing gap and a box, the locking device comprising a first locking buckle and a threaded top tightening member installed at a first frame position of the box, and a locking rod assembly installed at a second frame position of the box; the locking rod assembly comprises a second locking buckle and a locking rod body, the locking rod body is fixed in the second locking buckle, a top tightening groove is provided at an upper end of the locking rod body, and the upper end of the locking rod body extends out of the second frame; the threaded top tightening member is threadedly matched with the first locking buckle; when the boxes are spliced, the upper end of the locking rod body of one box extends into the first locking buckle of the other box, and when the threaded top tightening member is tightened inwardly, its end portion abuts against the inclined surface of the upper part of the top tightening groove, so that the locking rod body moves upward relative to the threaded top tightening member, and the two boxes are locked together; its beneficial effect is that the splicing gap of the boxes can be fine-tuned by rotating the threaded top tightening member, which solves the technical problem that the existing locking structure is difficult to adjust the splicing gap of the boxes.