35results about How to "Reduce rotation" patented technology

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 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 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 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 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.

A crane wheel set comprises two symmetrically-arranged bearing seats, bearings are assembled on the two bearing seats, a horizontally-arranged supporting shaft is arranged between the two bearing seats, the two ends of the supporting shaft are rotationally assembled in the bearing seats through the bearings, eccentric bearings are selected as the bearings in the bearing seats, and the two ends of the supporting shaft are rotationally assembled in the bearing seats through the bearings. A wheel matched with the I-shaped steel rail is further arranged between the two bearing seats, the wheel is arranged on the supporting shaft in a sleeving mode, a ball bearing is arranged between the wheel and the supporting shaft, an inner ring of the ball bearing is fixed to the supporting shaft, an outer ring of the ball bearing is fixed to the inner ring of the wheel, and the wheel is located in the middle of the supporting shaft. The device is simple in structure and convenient to use.

This application relates to a multifunctional cement paste mixer, comprising a body, a mixing assembly, a support plate, and a mixing pot. The support plate has an installation groove, and the bottom surface of the mixing pot has an installation column that inserts into the installation groove. A fastening assembly is installed within the installation column, comprising a connecting plate. The support plate and the installation column have sliding grooves that slide with the connecting plate, the sliding grooves being parallel to the radial direction of the installation column. The connecting plate has a cavity, and fastening plates are slidably connected to opposite sides of the cavity. Openings communicating with the cavity are formed on the outer surfaces of the connecting plate and the installation column. Fastening grooves that insert with the fastening plates are formed on the inner sidewall of the installation groove. An operating component is provided on the connecting plate to drive the fastening plates into the fastening grooves. This application improves the mixing effect of cement paste.

The application provides a high-altitude detection system of a wind speed and direction sensor, wherein the high-altitude detection system is installed on a transport operation platform, is lifted and stabilized on a wind speed and direction sensor operation plane through the platform, and is used for high-altitude real-time detection and / or calibration of the wind speed and direction sensor. The wind speed and direction sensor is usually installed at a high position, such as a wind speed and direction sensor on a catenary support post, which is installed at a position with a height of 4000 mm from a rail surface, and two wind speed and direction sensors are installed and fixed at each position; meanwhile, a railway line is relatively long, and even if real-time detection is carried out on site, it is very time-consuming and laborious. The application utilizes the extensibility of the operation platform at a high altitude and the convenience of long-distance transportation on the ground, meets the high-altitude detection needs of the wind speed and direction sensor, and unexpectedly solves the important practical problem of restricting the on-site detection of the wind speed and direction sensor.

The utility model relates to the field of construction detection equipment, in particular to an auxiliary fluidity tester, which is provided with a lifting pipe, an adjusting pipe is mounted at the top of the lifting pipe, the lifting pipe and the adjusting pipe are connected onto a support bolt through threads, and a plurality of groups of level gauges are arranged at the top of a transparent plate; the lifting pipe comprises a threaded pipe, a plurality of sets of connecting grooves are formed in the top of the threaded pipe, the adjusting pipe comprises a pipe body, a plurality of sets of connecting clamping strips matched with the connecting grooves are arranged at the bottom of the pipe body, and the connecting clamping strips are inserted into the connecting grooves, so that the top of the threaded pipe is connected and matched with the bottom of the pipe body; the height of the lifting pipes on the supporting bolts is changed by rotating the adjusting pipes at the four corners of the transparent plate, the heights of the four corners of the transparent plate are adjusted, and the device is used for an admixture compatibility test and a support grouting flow test, so that the device can be conveniently used for testing in a horizontal state during the test, and the accuracy of test data is ensured.

This application relates to a fixture for irregularly shaped parts with a scissor-type clamping plate, comprising a mounting bracket, a positioning seat, and a clamping mechanism. The clamping mechanism includes a limiting rod, a clamping plate assembly that rotates with the limiting rod to clamp the workpiece body downwards, and a driving assembly. The clamping plate assembly includes a rotary mounting base, a first clamping plate, and a second clamping plate, the first and second clamping plates being coaxially and rotatably mounted on the rotary mounting base. The positioning seat has an arrangement channel for the first and second clamping plates to swing. The first clamping plate has a first driving groove for arranging the limiting rod; the second clamping plate has a second driving groove for arranging the limiting rod; the movable end of the first clamping plate has a first clamping structure for clamping a first crossbeam; the movable end of the second clamping plate has a second clamping structure for clamping a second crossbeam. This application achieves the effect of clamping the workpiece without interfering with the surface to be processed.

The utility model discloses a single wheel pay -off trolley of variable diameter, including the link plate, is equipped with the sliding slot in link plate upper end, and the two -way screw rod is rotatably connected in the sliding slot, and the one end fixedly connected with the adjusting knob of two -way screw rod, and the moving plate is screw -threaded connection on both sides of two -way screw rod, and two opposite circular platform clamping plates are arranged between the opposite side of two moving plates, and the movable plug -in of auxiliary rod is inserted in the moving plate upside, and the fixed connection of pressure wheel is established between two auxiliary rods, and the movable plug -in of support rod is inserted in the moving plate bottom side, and the both ends of support rod and auxiliary rod all are in contact with the pressure column, the utility model discloses can make two -way screw rod rotate through the rotation adjusting knob, and make moving plate relative movement, then again through the cooperation of pressure column and limit sleeve, can provide the interval of two circular platform clamping plates of accurate regulation, and cooperate pressure wheel, can accurately regulate the position of cable and the strength of clamping cable, and through the rolling friction instead of sliding friction, reduce the abrasion, and improve the accuracy of fixing and guiding simultaneously.

The utility model belongs to ship loader technical field, concretely relates to a ship loader pitch rotation device, including support platform, be provided with the hinged support on support platform rotation, be provided with the cantilever frame on the hinged support hinged setting, the support platform is fixedly provided with the support frame, support frame top one side is provided with the steering device, the steering device includes the mounting seat and the goose head frame, be provided with the first pulley on the goose head frame, the goose head frame is hinged and is connected with the mounting seat, the mounting seat fixed connection support frame, be provided with the winding device on the support frame, the winding device is around and is provided with the steel wire, and the other end of steel wire passes through the first pulley after connecting cantilever frame far from the one end of hinged support. The utility model through setting up hinged cantilever frame swing when driving hinged support rotation, need not drive support frame rotation, simultaneously make the goose head frame of installing first pulley hinged installation, make it can swing with cantilever frame synchronization, guarantee cantilever frame angle adjustment smoothly.

The application discloses a metal pipeline anchor concave degree detection method and system based on image analysis, and relates to the technical field of pipeline quality detection. The method comprises the following steps: collecting panoramic images; identifying independent anchor concave core areas; generating independent anchor concave contour masks; segmenting anchor concave contours to determine independent anchor concave contours; determining depth estimates of independent anchor concaves; screening key detection concaves; dividing the key detection concaves into multiple measurement groups; controlling a photoelectric probe to project measurement light to the corresponding measurement groups, calculating actual depth data of the key detection concaves based on the reflected light; and collecting all the actual depth data to obtain anchor concave degree detection results. The application can accurately obtain the three-dimensional space coordinates of each anchor concave, directly locate the deepest part of the anchor concave, and screen out key concaves that have a greater impact on the average value of the overall anchor concave depth based on the anchor concave depth estimates, thereby ignoring general concaves and directly reducing more than 50% of invalid measurement operations.

The utility model discloses an automatic cleaning machine for crayfish processing, and mainly relates to an automatic cleaning machine for crayfish processing, the automatic cleaning machine for crayfish processing comprises a water tank, a double-screw conveying cleaning device, a rotating mechanism, a suction device, a brush cleaning device and a crayfish line extraction device, the upper end of the water tank is provided with a conveyor belt, and the surface of the conveyor belt is provided with a crescent baffle plate; a plurality of sets of crescent baffles are arranged, a material distributing plate is placed at the end, away from the water tank, of the conveying belt, spring supports are arranged at the peripheral corners of the lower end face of the material distributing plate, and a vibration motor is fixedly installed on the lower end face of the material distributing plate. The device has the advantages that the rolling of the crayfish is reduced, the death rate of the crayfish is reduced, the chest and abdomen of the crayfish are directionally cleaned, and the shrimp lines of the fresh and alive crayfish are removed.

The utility model relates to the technical field of suspension conveying line, especially a kind of anti-shaking device for workpiece of suspension assembly line, including travelling frame suspender, the suspender for hooking workpiece is hung below travelling frame suspender, the travelling frame suspender is fixedly installed with locating seat, two pressure rods that can swing up and down are symmetrically connected with the both sides of locating seat, each pressure rod is slidably connected with sliding block, and the sliding block between two pressure rods is movably connected with pull rod, and the angle between two pressure rods can be changed by up and down push-pull pull rod.Utilize the linkage of sliding block and pull rod to realize synchronous clamping, so that workpiece obtains bilateral support on the basis of suspender hooking.The structure can significantly reduce the lateral swing and rotation of workpiece in conveying process, avoid the collision and position deviation between workpieces, thereby improve the stability and precision of assembly process, ensure that production line operation is safer and more reliable.

The application provides an anchor bolt with a continuous involute expansion cone, and relates to the field of building fasteners.The anchor bolt comprises an anchor bolt screw, an expansion sleeve and a nut.The expansion sleeve is sleeved on the anchor bolt screw, and the two ends of the anchor bolt screw extend out of the expansion sleeve.The one end of the anchor bolt screw is connected with the nut, the other end of the anchor bolt screw is provided with an expansion cone, the end surface of the expansion cone is provided with at least two protruding portions in the circumferential direction, the protruding portions extend along the axial direction of the expansion cone, and the adjacent protruding portions are connected through a continuous involute.The end surface of the expansion cone is provided with at least two protruding portions, so that the unnecessary rotation of the anchor bolt is reduced during the fastening process, the anchor bolt can generate pressure with the side wall of the bottom hole more quickly, the anchor bolt screw is locked through a stable structure, and the loosening phenomenon during use is effectively reduced.

The utility model relates to the technical field of clamps, in particular to a copper block positioning clamp which comprises a base, a clamping seat fixed to the upper portion of the base and two clamping jaws arranged on the base in a sliding mode, the two clamping jaws are located on the two sides of the clamping seat respectively, the distances between the two clamping jaws and the clamping seat are the same, and the two clamping jaws are arranged on the base in a sliding mode. The clamping jaw slides in the length direction of the base, and the clamping seat can fix a copper block in the width direction of the base. The positioning device has the advantages that the positioning process of the copper block is simplified, and workers can conveniently machine the copper block.