13results about How to "Solve the gap" patented technology

The application discloses a full-wrapping concrete truss structure and a construction method thereof, and belongs to the technical field of building structures. The full-wrapping concrete truss structure comprises a steel pipe truss assembly arranged between a plurality of steel plates, a wrapping assembly arranged outside the steel pipe truss assembly, and a concrete layer arranged outside the wrapping assembly. The construction method comprises the following steps: S1, preparing a top chord, a bottom chord, a vertical rod and a horizontal rod, wrapping the rods with a reinforcing mesh and welding to obtain a steel pipe truss shell; S2, arranging a diagonal web member assembly inside the shell and arranging a connecting mesh outside the shell to form a steel pipe truss monomer; S3, bolt connecting a plurality of monomers and bolt connecting the steel plates and the monomers at edges to form a steel pipe truss structure; and S4, vibrating the steel pipe truss structure after concrete partition pouring to obtain the full-wrapping concrete truss structure. The application can realize full wrapping of the steel pipe, ensure that the concrete layer is tightly bonded with the steel pipe, and improve the stability and safety of the structure.

The invention belongs to the field of metallurgical industry automatic control, and relates to a method for improving the MRG speed of temper rolling of different steel grades, which is characterized by comprising the following steps of: 1, selecting supplied materials; 3, a temper mill brings in steel coil data from an uncoiler, a straightener straightens a steel plate, the temper mill selects a recoiling or leveling process mode, tension control is carried out on a feeding roller at an outlet, tension coiling of a coiling machine is completed, and trolley transportation is finished. When special steel varieties are rolled, L1 head and tail speed automatic adjustment control is input, the coil loosening phenomenon of a coiling machine is eliminated, the equipment failure time is saved, the problems of large gaps and scratches of steel coils are solved, the product surface qualification rate is increased, and good benefits are obtained. The method is suitable for being used in hot rolling leveling process control.

The utility model relates to the technical field of steering systems, in particular to a gear and rack pre-tightening mechanism for a double-pinion steering machine. A gear and rack pre-tightening mechanism for a double-pinion steering machine is characterized in that a long shell is arranged on the outer side of a rack, and a steering wheel side bearing mounting area and a motor end bearing mounting area are arranged at the two ends of the rack respectively; the steering wheel side bearing mounting area comprises a needle bearing and a first pendulum bearing, one end of the rack is sleeved with the first pendulum bearing, and the portion, located above the first pendulum bearing, of the rack is sleeved with the needle bearing; the motor end bearing installation area comprises a ball bearing and a second pendulum bearing, the other end of the rack is sleeved with the second pendulum bearing, and the portion, located above the second pendulum bearing, of the rack is sleeved with the ball bearing. Compared with the prior art, the assembly complexity is reduced; the problem of rigidity attenuation of the pre-tightening mechanism after durability is solved; and the problem of gap enlargement caused by abrasion of different matched parts after durability is solved.

A method for forming a two-color coating sequentially comprises the steps that (a) a coating with a first color is formed on the step surface of a workpiece, and the step surface is provided with a lower section, an upper section and a middle section connecting the lower section and the upper section; (b) forming an ink layer with a second color on the coating at the step surface; (c) softly baking the ink layer; (d) exposing a first region of the ink layer corresponding to the lower section and the intermediate section to cause a cross-linking reaction thereof; (e) developing the ink layer to remove a second region of the ink layer and expose the coating corresponding to the upper section, wherein the second region is not cross-linked and corresponds to the upper section; and (f) hard baking the ink layer so as to exhibit the second color at the lower and middle sections of the workpiece and the first color at the upper section thereof. The ink layer with the second color can completely cover the coatings at the lower interval and the middle interval of the step surface so as to solve the offset problem caused by the step surface, and the method can be implemented only by low-step lithography equipment, so that the equipment cost is also saved.

The invention relates to the technical field of welding, in particular to tank end cover automatic arc welding equipment for a tank truck, which comprises an erected sucker, a lifting sleeve in threaded connection with the upper end of the erected sucker, a welding machine main body fixedly connected with the upper end of the lifting sleeve, a support frame fixedly connected with the surface of the welding machine main body, and a traveling motor fixedly connected with the lower end of the support frame. The output end of the advancing motor is fixedly connected with an advancing gear, and the outer surface of the advancing gear meshes with a rotating frame. The welding gun can move along a welding gap by arranging the advancing rail rod, the arc welding corner position can be more stable by arranging the two sets of sliding seats and connecting the sliding seats through the connecting rod, the welding gun can be always attached to the advancing rail rod in the moving process by arranging the extending column, the welding gun can move along a welding seam, and the welding efficiency is improved. And the effect that stable sliding welding is conducted by attaching to the weld joint is achieved, and the problem that when welding is conducted along a three-dimensional arc, movement is not smooth enough, discontinuity occurs, or the standing time is too long during welding is solved.

The utility model relates to a kind of edge overhanging net rack structure, including net rack structure, several supporting columns are set in the lower portion inside along its perimeter in net rack structure, form the inside multiple-point support of net rack structure, it is characterized in that, still include edge overhanging structure and wall frame column, the edge overhanging structure is one or more layers of edge overhanging structure, located the edge of net rack structure, and edge overhanging structure is connected in the lower portion of net rack structure, the wall frame column is placed vertically, and it is arranged in turn along the horizontal direction of edge overhanging structure, wall frame column is connected with edge overhanging structure by ball node, wall frame column lower end extends to original enclosure facility downward.The utility model can solve the gap problem between any net rack structure and original enclosure facility by setting overhanging structure in the lower portion edge of net rack structure, combined with wall frame column cantilever, can be realized on the basis of fully utilizing original enclosure facility to complete closed reconstruction, both reduce engineering cost, and shorten construction period and reduce adverse effects on production.

The present invention discloses a concealed installation design structure for a large curved special-shaped pipe well door, belonging to the technical field of pipe well doors, comprising a fixed frame, which is a rectangular frame body, and the four sides of the fixed frame are fixedly installed in a door groove on a wall base; a hidden door frame, which is a rectangular frame body, and the hidden door frame is located in the fixed frame, and the top and bottom of the hidden door frame are respectively connected to the fixed frame by two groups of first sliding mechanisms; the present invention connects the hidden door frame to the fixed frame by sliding using a first sliding mechanism, and the door panel fixing plate is connected to the hidden door frame by sliding using a second sliding mechanism, and utilizes a two-stage sliding design to conceal the curved door panel in the curved decorative panel, and has a good transition with the arc surface between the curved decorative panel, thereby avoiding interference with the curved decorative panel caused by using a hinged door opening, protecting the curved decorative panel from being damaged, solving the problem of large gap between the curved door panel and the curved decorative panel, and improving the aesthetics of the decorative effect.

The invention discloses a continuous feeding system and method with dynamic feeding and anti-vibration weighing functions. The method comprises the steps that a multi-source sensing data set is obtained, vibration frequency and amplitude data are extracted, an elastic coefficient and a damping coefficient are optimized, and vibration is attenuated through an elastic damping structure; constructing a three-level push type material conveying link, generating a first execution instruction, controlling the cage culture crane to drive to a target feeding point, performing position error calibration when a reflector identification point is positioned and identified, calculating the corrected position error to judge the calibration validity, and if the calibration is invalid, continuing calibration until the standard is reached; calculating a vibration compensation factor to compensate a weighing error, calculating a feed residual amount, starting third-stage link feeding when the feed residual amount is smaller than a required feed amount, stopping feeding when an accumulated feeding weight reaches a target feeding weight, generating a second execution instruction, performing retention amount evaluation, and if the total retention amount is smaller than a retention threshold value, starting third-stage link feeding; and if not, triggering the first-stage link to supplement materials, thereby realizing anti-vibration weighing, continuous material conveying, accurate positioning and dynamic material supplement.

The application relates to the technical field of building construction safety protection, and discloses a center column installation turnover cantilever protection device, which comprises steel belts, angle steels, square steel pipes, bolts, round steel pipes and steel sheet nets, wherein the steel belts are arranged in a plurality of strips, are fixed in a hoop around the outer wall of the center column, and are connected into a hoop clamp through the bolts at the two ends; the angle steels serve as main cantilever beams, the vertical limbs of the angle steels are connected with the steel belts through the bolts, and the horizontal limbs of the angle steels are extended to form a cantilever platform; the square steel pipes are connected at the end portions of the horizontal limbs of the angle steels and form an annular outer frame with the adjacent angle steels; the round steel pipes are arranged in a hoop to form a horizontal support system; and the steel sheet nets are laid on the platform surface as a bottom plate for the walking and material placing of workers. The application can provide a working platform and falling protection device which are directly fixed on the installed center column segment, and solve the problems of high cost, slow erection, high risk in the air and poor turnover in the prior art.

The present invention belongs to the field of squeezing technology, and provides a pomegranate seed squeezing device and a method for using the same, including: a turret, a circular groove and a connecting groove are provided on the upper surface of the turret, and the circular groove is connected to the connecting groove; a support frame, the support frame is connected to the upper surface of the turret, a hydraulic rod for squeezing the pomegranate seeds is provided on the support frame, a squeezing plate is connected to the bottom of the telescopic end of the hydraulic rod, and the pomegranate seeds are stored through a polypropylene filter bag; a receiving cylinder, the receiving cylinder is adapted to the circular groove, the bottom wall of the receiving cylinder is connected to the bottom wall of the circular groove through a telescopic cylinder, the outer wall of the receiving cylinder is connected to a guide pipe, and the guide pipe is adapted to the connecting groove; a storage cylinder, a through hole is provided on the storage cylinder; the storage cylinder is used to place the pomegranate seeds stored in the polypropylene filter bag. The present invention adopts the design of an adjustable unit, which can drive the storage cylinder to move, and then drive the pomegranate seeds stored in the polypropylene filter bag to move.

The utility model relates to the field of medical instruments and provides an orthopedic instrument box which aims at solving the problems that an existing instrument box is single in structure and unreasonable in design and comprises a box body and a tray, a drawing opening is formed in the front portion of the box body, sliding grooves are formed in the positions, on the two sides of the drawing opening, of the inner wall of the box body, and idler wheels are arranged on the two sides of the tray. The front end of the rolling wheel is provided with a damping block, and the rolling wheel and the damping block are arranged in the sliding groove.

The present invention provides a double-layer cold shrink sleeve and a preparation method and use thereof. An EPDM cold shrink tube is used to make the double-layer cold shrink sleeve have excellent wear resistance and scratch resistance. In addition, the inner diameter matching design between the EPDM cold shrink tube and the silicone cold shrink tube solves the problem of gaps caused by the difference in shrinkage between the EPDM cold shrink tube and the silicone cold shrink tube. When in use, the double-layer cold shrink sleeve can be directly installed on a cable connector, a power cable connector or other types of cable connectors, and the installation can be completed by pulling out a supporting tube. The double-layer cold shrink sleeve can provide a durable and reliable waterproof seal for connectors or connectors that need to be protected in extremely cold, extremely hot, extremely humid, plateau and salt spray environments.

The present invention discloses a peristaltic pump head device for a blood purification device, comprising: a roller, a driving device for driving the roller to rotate so as to squeeze a soft tube, and an adjusting device. The adjusting device can automatically adjust the distance between the roller and the soft tube according to the force between the roller and the soft tube, and the driving device and the adjusting device are both connected to the roller. When the roller of the device encounters an eccentricity of the inner hole of the soft tube, that is, when the roller reaches different wall thicknesses of the soft tube, under the adjustment action of the adjusting device, the gap distance between the roller and the soft tube can be adjusted according to the force between the roller and the soft tube, thereby effectively solving the gap problem caused by the eccentricity of the inner hole of the soft tube. Therefore, the device can effectively solve the gap problem caused by the eccentricity of the inner hole of the soft tube, and the device has a simple structure and is easy to use, and can be promoted for use.