64results about How to "Reduce rotation" patented technology

The invention discloses a control device and an electric valve comprising the control device, the control device comprises a shell, a stator assembly and a rotor assembly, and the stator assembly is located on the periphery of the rotor assembly; the stator assembly comprises a first installation part, the shell comprises a protruding part, the first installation part comprises a limiting groove, the limiting groove basically extends in the radial direction of the stator assembly, and the protruding part is fixedly connected or connected with the first installation part in a limiting mode. At least part of the protruding part is located in the limiting groove and abuts against the wall forming the limiting groove or is in clearance fit with the wall forming the limiting groove, circumferential limiting can be conducted on the stator assembly, and rotation of the stator assembly relative to the shell can be reduced.

The invention relates to an LED ceiling lamp capable of intelligently adjusting brightness and a control method, and relates to the technical field of lighting equipment.The LED ceiling lamp comprises a connecting plate, a mounting plate is connected to the lower portion of the connecting plate, the mounting plate is horizontally arranged, a mounting groove is formed in the side, away from the connecting plate, of the mounting plate, and an LED lamp panel is mounted in the mounting groove; a control groove is formed in the side, away from the connecting plate, of the mounting plate, a two-way screw is arranged in the control groove, two baffles used for shielding a light source are arranged on the two sides of the LED lamp panel, the two baffles are oppositely arranged on the two sides of the LED lamp panel, the two baffles are in threaded connection with the two ends of the two-way screw respectively, and a driving motor is arranged in the mounting plate. And an output shaft of the driving motor is coaxially and fixedly connected with the two-way screw rod. According to the invention, the light stroboflash phenomenon is solved in a mode of dimming through physical shielding, the eye health is facilitated, and the user experience is improved.

The present invention provides a portable lymphedema auxiliary therapeutic device, which relates to the technical field of nursing equipment, and comprises: a control unit, a positioning unit, an auxiliary therapeutic unit A and an auxiliary therapeutic unit B; the positioning unit is installed on the control unit, and the positioning unit is used to position the control unit; the auxiliary therapeutic unit A is installed at the left end of the control unit, and the auxiliary therapeutic unit A is used for rolling massage therapy, and the auxiliary therapeutic unit A is also used for tapping massage therapy; the auxiliary therapeutic unit B is installed at the left end of the control unit, and the auxiliary therapeutic unit B is located inside the auxiliary therapeutic unit A, and the auxiliary therapeutic unit B is used for vibration massage therapy; the present invention rotates the control handle B forward or reversely by 135 degrees, thereby reducing the overall length of the present invention and making it more convenient to carry; and solves the problem that the overall length cannot be reduced when carrying due to the generally integrated structure, resulting in a longer space being occupied when carrying.

The utility model relates to the technical field of railway electric power, and discloses an anti-drop connecting device and an anti-drop centipede ladder, and the anti-drop connecting device comprises a connecting piece and two hooks arranged at an interval. The connecting piece is used for connecting a first to-be-connected piece; the two hooks arranged at intervals are connected with the connecting piece to form two connecting parts, and openings of the two hooks are located on the two sides of a connecting line of the two connecting parts respectively. The anti-drop connecting device can improve the stability of hanging connection and can effectively prevent drop.

The invention discloses a building roof heat preservation and insulation system and a construction method thereof, and belongs to the technical field of roof heat preservation and insulation, the building roof heat preservation and insulation system comprises a plurality of extruded polystyrene boards laid on a roof, an aluminum foil reflecting film is laid on the surface of each extruded polystyrene board, and the surface of each aluminum foil reflecting film is coated with polymer cement mortar. The roof is provided with a fixing assembly used for fixing the extruded polystyrene board to the roof. The method has the effect of improving the heat preservation and insulation effect of the roof.

The utility model relates to the technical field of cylindrical roller bearing processing, in particular to processing equipment for processing a cylindrical roller bearing, which comprises a device body, a support frame is mounted on the device body, an outer frame is movably connected in the support frame, an inner disc is movably connected in the outer frame, a rubber clamping ring is arranged on one side of the inner disc, and the rubber clamping ring is arranged on the other side of the inner disc. A bottom disc is arranged on the bottom side of the inner disc, and a limiting rod is installed on the bottom disc. A telescopic air cylinder is arranged on one side of the limiting rod, and a grinding roller is installed on the outer side of the telescopic air cylinder. According to the bearing polishing device, the possibility that an inner ring and an outer ring can rotate in the bearing machining process is reduced, the possibility that a large number of chippings remain on the polished bearing is reduced, the stable polishing effect of the device is improved, operation is convenient, efficiency is high, the cleaning effect of the device on the bearing is improved, and the service life of the device is prolonged. And waste residues can be conveniently discharged after cleaning.

The utility model discloses a combined device of a resistance grid frame and a rear frame supporting structure and a loading machine. The combined device comprises the resistance grid frame, the rear frame supporting structure, a connecting part and a resistance grid, the whole resistance grid frame is of a frame structure and is used for mounting a plurality of resistance grids; the rear frame supporting structure comprises a left supporting frame and a right supporting frame which are installed on a rear frame, the resistance grid frame is assembled between the left supporting frame and the right supporting frame, and the resistance grid frame can rotate with the other supporting frame as a hinge point by disassembling a connecting part between any supporting frame and the resistance grid frame. The device is used for overhauling and cleaning the resistance grid. The resistance grid frame and the rear frame supporting structure are compact, installation of multiple groups of resistance grids is achieved, the structural strength is good, and the resistance grids are convenient to disassemble and assemble; rotation of the resistance grid frame relative to the rear frame is achieved through the connecting component, and maintenance and cleaning of the resistance grid are facilitated.

The utility model discloses a double -end bolt for petroleum workover rig slide horizontal adjusting device relates to mechanical adjusting device technical field, including double -end bolt body, slide connecting pipe and derrick connecting pipe, the slide connecting pipe fixed connection in the trolley slide, and double -end bolt body connects between the slide connecting pipe and derrick connecting pipe, the middle of double -end bolt body is provided with the adjusting end, and double -end bolt body left side screw thread connection is in the slide connecting pipe inside, and double -end bolt body right side screw thread connection is in the derrick connecting pipe inside, double -end bolt body left side is provided with the joint end, and the joint end inside is provided with the joint ball, and the joint ball is connected in the slide connecting pipe inside and constitutes fixed structure. This double -end bolt for petroleum workover rig slide horizontal adjusting device solves the problem that traditional double -end bolt is easy to loosen, the triple anti -loose structure makes the loosening rate reduce under the vibration condition, and the horizontal adjustment precision improves, is applicable to the stable adjustment of petroleum workover rig slide.

The utility model belongs to the technical field of steel structure frames, and particularly relates to a steel structure frame surface polishing device which comprises a polishing operation table. A polishing machine is arranged at the top of the polishing operation table; a fixing base is arranged in the middle of the polishing operation table. The fixing base slides on the top of the polishing operation table. The side wall of the fixed seat is fixedly connected with an electric push rod; the other end of the electric push rod is fixedly connected to the side wall of the polishing operation table. A fixing rod is arranged in the fixing base in a sliding fit mode. A plurality of groups of fixing rods are arranged in the fixing seat and are symmetrically arranged; according to the step, through arrangement of a polishing operation table, a fixing base, an electric push rod, a fixing rod, a clamping plate, a first fixing plate and a fixing hole, the steel component is fixed to the top of the fixing base, the possibility that a steel structure frame rotates or deviates during polishing is reduced, and through arrangement of the fixing rod, the fixing hole and a bolt, the adjustability of the device is improved; and the situation that the polishing quality is reduced due to deviation of the steel structure frame is reduced.

The application relates to the technical field of feeding and discharging devices, in particular to a device for automatically feeding and discharging workpieces, which comprises a box body, further comprises a limiting mechanism, the limiting mechanism is provided with at least two groups and is respectively used for limiting and positioning processed workpieces and unprocessed workpieces, and the limiting mechanism is slidingly connected to the upper end of the box body; the limiting mechanism comprises a bearing table, a chuck and a clamping rod, the bearing table is slidingly connected with the box body, the chuck is rotationally connected with the bearing table, the bearing table is provided with a first guide hole, the chuck is provided with a second guide hole, the first guide hole and the second guide hole are distributed in a cross mode, the clamping rod is arranged at the intersection between the first guide hole and the second guide hole, the clamping rod is distributed in a plurality of intervals around the bearing table, the first guide hole and the second guide hole are each provided with a plurality of clamping rods in correspondence, and the chuck is connected with a driving assembly. The application has the effects of reducing the labor intensity of workers and increasing the feeding and discharging efficiency of workpieces.

The utility model relates to the technical field of welding heads, and provides an elastic floating type welding head which comprises a welding head body and a welding seat coaxial with the welding head body, the welding seat comprises a welding seat cylinder and a supporting piece arranged on the upper surface of the welding seat cylinder, an elastic piece is arranged in the welding seat cylinder, and the supporting piece abuts against the elastic piece. The supporting piece can ascend and descend in the height direction of the welding base cylinder. The elastic part is arranged for buffering when the supporting part is subjected to impact force, the welding seat can elastically float according to the actual stress condition of the metal part in the welding process, the sinking problem of the welding position of the metal part caused by rigid abutting is effectively solved, and therefore the beneficial effect that the surface structure integrity of the welding position is ensured is achieved.

The utility model relates to the technical field of machining, in particular to a protection mechanism for a numerical control machine tool. The trigger assembly comprises a shell, the side surface of the shell is arranged on a partition plate in the machine tool in a sleeving mode, a limiting piece is movably connected into the shell in a sleeving mode, a pressing button is fixedly connected to one side of the limiting piece, one side of the pressing button extends out of the shell, and a first electric piece is fixedly connected to the other side of the limiting piece; a second electric sheet is fixedly connected to the inner wall of one side of the shell, and a first spring is arranged in the shell in a sleeved mode. According to the protection mechanism for the numerical control machine tool, through a pressing button, a second electric piece and a first electric piece, after a protection door moves to a machining area, a coil and a driving motor are powered on, and when the protection door does not move to a designated area, the protection door cannot be powered on, machining operation can be conducted only after the protection door covers the machining area, and therefore safety is improved; the safety risk is reduced.

The present application relates to the technical field of machine vision, and provides a multi-view camera relative pose estimation method based on IMU rotation axis direction prior, comprising: depth parameterization is carried out to the translation vector formed by a multi-view camera system from a first time to a second time, and the generalized epipolar constraint of the multi-view camera system is reconstructed based on the depth parameter; the relative pose estimation problem of the multi-view camera in the multi-view camera system is converted into a single variable cubic polynomial root seeking by using the rotation axis direction prior information provided by an inertial measurement unit and combining the reconstructed generalized epipolar constraint; after single variable root seeking, the rotation matrix and the translation vector of the multi-view camera system from the first time to the second time are solved based on the root seeking result, and the relative pose estimation result is obtained. While maintaining competitive estimation accuracy, the calculation efficiency can be significantly improved, and the present application provides an efficient and practical scheme for the implementation of multi-view vision positioning in an automatic driving system.

The invention discloses a damping characteristic design method and an energy-dissipating and amplifying torque eddy current damper. The damping characteristic design method comprises obtaining a damping coefficient according to the physical characteristics of a rotating part, the measured moment of inertia, the initial rotation speed, the maximum rotation speed of the rotating part, the minimum rotation speed, the angle through which the rotating part needs to rotate, the lower limit and the upper limit of the load received during the rotation process, and designing a motion amplifying gear assembly in combination with the installation space reserved for the eddy current damper in actual use; the energy-dissipating and amplifying torque eddy current damper comprises a damping generating assembly and a motion amplifying gear assembly. When the rotating part undergoes a relative rotational motion around a rotating shaft, the conductor plate of the damping generating assembly continuously cuts the magnetic part to generate an eddy current damping force. The motion amplifying gear assembly can amplify the output damping force exponentially under the limitation of a relatively small installation space, thereby greatly improving the equipment control tonnage of the damper.

The utility model discloses a damping hinge which comprises a door leaf hinge, a door frame hinge, an upper connecting sleeve and a lower connecting sleeve. A damper is rotatably arranged in the lower end part of the lower connecting sleeve, a connecting shaft is connected in the upper end part of the lower connecting sleeve, and the upper end part of the connecting shaft is arranged in the upper connecting sleeve; a pair of spiral grooves are oppositely formed in the side wall of the upper connecting sleeve, a pair of guide holes are formed in the connecting shaft, and the guide holes are formed in the longitudinal direction and correspond to the spiral grooves in a one-to-one mode; the upper end of a piston rod of the damper penetrates through a shaft hole in the middle of the connecting shaft to be arranged in the upper link sleeve, a pair of guide shafts matched with the guide holes are connected to the side wall of the upper end of the piston rod, and the guide shafts penetrate through the guide holes to be arranged in the corresponding spiral grooves. When the door leaf hinge is rotated, the spiral groove drives the guide shaft to drive the piston rod to move upwards or downwards, so that the damper slows down rotation of the door leaf hinge, the damping effect is achieved, the door leaf is prevented from rapidly impacting a door frame or a wall in the closing or opening process, and the door leaf and the door frame are effectively protected.

This invention provides a textured robot structure, including a frame, a drive system mounted on the frame for horizontal movement, a textured base mounted on the side end face of the frame, a steel brush mounted on the textured base, a textured drive component mounted between the textured base and the steel brush for rotating the steel brush, and a dust collection box mounted on the textured base to the right of the steel brush, a dust collection opening at the lower end of the dust collection box, a dust collection hood mounted on the textured base, a high-pressure fan mounted on the dust collection hood, a connecting pipe between the high-pressure fan and the dust collection box, a lifting mechanism between the dust collection box and the textured base for raising or lowering the dust collection box, and a fixing mechanism between the lifting mechanism and the textured base for fixing or releasing the position of the dust collection box after it has been raised or lowered.

The application discloses a kind of based on image sensor's abrasion-resistant steel lining plate appearance detection device, it is related to steel plate detection equipment technical field, including roller, connecting column, round head column, elastic telescopic column and L plate, the roller is fixedly installed in the output end of conveyer belt, one end of the connecting column is fixedly installed in the front of roller, the round head column is fixedly installed in the other end of connecting column, the fixed end of the elastic telescopic column is fixedly installed in the front of conveyer belt, when steel lining plate angle is too large, directly rely on clamping plate to straighten up can be caused by insufficient stress or angle deviation to fail, elastic telescopic flat plate first contact and push steel lining plate, by the way of "pre-correcting angle", large angle is converted into the small angle that clamping plate can handle, ensure the success rate of subsequent straightening action.

The invention discloses an automobile oil filling pipe convenient to connect, and relates to the field of automobile driving, the automobile oil filling pipe comprises an oil filling pipeline, one end of the oil filling pipeline is provided with an oil filling port, one end of the oil filling pipeline far away from a mounting block is provided with a rapid fixing mechanism, and one end of the oil filling pipeline far away from the mounting block is provided with an auxiliary sealing fixing mechanism. The oil filling pipeline is directly arranged at a connector of an automobile oil tank in a sleeving mode, then the rapid fixing mechanism on the oil filling pipeline is directly pushed to clamp the surface of the oil filling pipeline, the oil filling pipeline abuts against the connector of the oil tank, and the rapid fixing mechanism drives the auxiliary sealing fixing mechanism while the rapid fixing mechanism is pushed; the oil filling pipeline on the oil tank connector is further tightened and fixed, so that the oil filling pipeline can be conveniently and quickly fixed at the oil tank connector of the automobile, the trouble that a tool needs to stretch into the oil tank connector of the automobile to fix the oil filling pipeline traditionally is reduced, and the possibility of oil leakage between the oil filling pipeline and the oil tank connector is reduced.

The invention relates to the technical field of optical instruments, and discloses a microscope with a flushing function, which comprises a microscope main body, eyepieces are arranged on both sides of the microscope main body, an objective lens is arranged at the lower end of the microscope main body, a bracket is arranged on the microscope main body, and a bracket frame is arranged on the bracket. A forehead support is arranged on the upper portion of the bracket frame, a supporting plate is arranged on the lower portion of the bracket frame, a drug delivery mechanism is arranged on one side of the bracket frame and comprises a shell, and a drug bag is arranged in the shell. According to the technical scheme, the problem that eyes cannot be flushed when a doctor carries out an operation on both hands is effectively solved, the doctor can better grasp the flushing amount and frequency due to the fact that the doctor knows own requirements when the operation is actually carried out, invalid cleaning is greatly reduced, the discomfort of a patient caused by frequent flushing is reduced, and the patient is more comfortable to use. Therefore, rotation of eyeballs caused by discomfort is reduced, and operation efficiency is effectively improved.

The utility model relates to the technical field of coil stock devices, in particular to a feeding and pulling-back device for hydrogen fuel cell coil stock cutting. Comprising a pushing disc for transporting a battery roll material, a rotating shaft which is connected with the pushing disc in a sleeving manner and drives the pushing disc, a transfer roller for transferring the battery roll material, a positioning mechanism for confirming that the rotating shaft and the transfer roller are coaxial, and an operation panel for controlling the rotating shaft to rotate, wherein moving rails for ensuring that the pushing disc moves along the shaft are arranged on two sides of the device; a supporting frame is arranged on the moving track, the positioning mechanism comprises a vertical signal transmitter, and the transmitter is arranged on the supporting frame; the horizontal signal transmitter is arranged on the moving track; and the signal receiver is arranged on the transfer roller. By means of the mechanism, a more reliable and efficient solution is provided for feeding and pulling-back work of the hydrogen fuel cell coil stock, and the quality and production efficiency of final products can be improved.

The application belongs to the technical field of paint production equipment, and discloses a mixing mechanism for producing paint, a rack, a storage cylinder, a mixing box and a material control assembly. The rack has an installation space inside, the storage cylinder is arranged in the installation space, and the inside of the storage cylinder has a plurality of storage cavities along the circumference thereof. The mixing box is arranged in the installation space and located at the bottom of the storage cylinder. The material control assembly comprises a material control plate located at the bottom of the storage cylinder and a driving member arranged on the rack. The material control plate has a material dropping opening, the material dropping opening is provided with a material guide pipe in communication with the feed port of the mixing box, and the driving member is connected to the material control plate and used for driving the material control plate to rotate, so that the material dropping opening is in communication with different storage cavities, thereby realizing storage of a plurality of raw materials on one hand, reducing the area occupied by the plurality of storage cavities on the other hand, reducing the required floor area of the mixing mechanism, and improving the space utilization of the factory area.

The compaction device comprises a bottom plate, a support is arranged on the bottom plate, a first driving part is arranged on the top face of the support in an inverted mode, and a pressing plate for compacting the iron core is arranged at the output end of the first driving part; a placement plate is arranged on the bottom plate and located under the first driving part, a center positioning column matched with a center hole of the iron core is arranged on the placement plate in a sliding mode in the vertical direction, the center positioning column penetrates through the placement plate and the bottom plate, a connecting plate is arranged at the end, away from the first driving part, of the center positioning column, and the connecting plate is provided with a plurality of elastic parts connected with the bottom plate; the placing plate and the center positioning column penetrate through the placing plate and the bottom plate, positioning of the center of the iron core can be kept in the whole compaction process, center deviation is reduced, the bottom connecting plate and the elastic piece play a role in buffering and self-adaptive adjustment, when the pressing plate is pressed downwards, and pressure changes, the elastic piece can absorb impact force, and the pressing plate is prevented from being damaged. Damage to the device or influence on the iron core precision due to rigid collision is reduced; and meanwhile, the elastic piece helps the center positioning column to reset after compaction is completed.

The utility model relates to the technical field of fan equipment, in particular to a high-efficiency negative-pressure butterfly-shaped door shaft circulation fan, which comprises a shell and is characterized in that an air inlet of the shell adopts a circular-arc-shaped horn mouth design, a square flange is arranged on the outer side of the circular-arc-shaped horn mouth, a diffusion cylinder is arranged at an air outlet of the shell, and a fan blade is arranged on the diffusion cylinder. An inclined butterfly door support frame is arranged in the diffusion cylinder; a butterfly-shaped door is further arranged in the diffusion cylinder and connected with a fixing frame through a hinge structure, and the fixing frame is installed on the supporting frame. According to the fan, the long diffusion barrel design is adopted at the air outlet, a part of dynamic pressure is effectively converted into static pressure, and the overall efficiency of the fan is improved; according to the fan, the arc-shaped horn mouth design is adopted at the air inlet, so that air inflow is streamlined, rotation and turbulence of airflow are reduced, the airflow is more stable, resistance is reduced, and the efficiency of the fan is improved; the square flange is additionally arranged at the air inlet, so that the hole is more convenient to block, and the sealing effect is better.

The invention discloses a metal pipeline anchor pattern degree detection method and system based on image analysis, and relates to the technical field of pipeline quality detection, and the method comprises the steps: collecting a panoramic image; identifying an independent anchor pattern depression core area; generating a contour mask of the independent anchor pattern recess; segmenting the anchor pattern depression contours to determine independent anchor pattern depression contours; determining the depth estimated value of the independent anchor pattern recess; screening key detection pits; dividing the key detection recesses into a plurality of measurement groups; controlling the photoelectric measuring head to project measuring light to the corresponding measuring group, and calculating actual depth data of the key detection recess based on the reflected light; and summarizing all actual depth data to obtain an anchor grain degree detection result. According to the method, the three-dimensional space coordinates of each anchor pattern recess can be accurately obtained, the deepest position of the anchor pattern can be directly positioned, meanwhile, key recesses which have great influence on the overall anchor pattern depth average value are screened out based on the anchor pattern depth estimated value, general recesses are ignored, and invalid measurement operation is directly reduced by more than 50%.

This application provides a skincare kit, which includes a liquid storage container, a container cap, a first anti-rotation device, and a second anti-rotation device. The liquid storage container has a liquid outlet. The container cap is detachably connected to the liquid storage container and is used to cover the liquid outlet. The first anti-rotation device includes a first anti-rotation part disposed on the liquid storage container and a second anti-rotation part disposed on the container cap. The second anti-rotation device includes a third anti-rotation part disposed on the liquid storage container and a fourth anti-rotation part disposed on the container cap. This application aims to reduce the relative rotation between the container cap and the liquid storage container, thereby improving the sealing performance of the container cap.