77 results about "Arch height" patented technology

The invention discloses a continuous locus intersegment connecting speed processing method for a numerical control system, which comprises the following steps of: determining an adjacent two-segment locus connecting model, and acquiring the movement parameter of the adjacent two-segment locus to be processed; calculating the path length of the adjacent two-segment locus to be processed; calculating the speed of a connecting point of the adjacent two-segment locus under the conditions of acceleration, arch height error, instruction feeding speed and corner constraint; calculating the speed of the connecting point of the adjacent two-segment locus satisfying the condition S curve acceleration and deceleration control-based path length constraint of the front segment locus in the adjacent two-segment locus; and calculating the speed of the connecting point of the adjacent two-segment locus satisfying the condition S curve acceleration and deceleration control-based path length constraint of the rear segment locus in the adjacent two-segment locus, wherein the calculated speed is used as a final value of the adjacent two-segment locus connecting speed. The invention provides the continuous locus intersegment connecting speed processing method for numerical control equipment, so that the processing locus of the numerical control equipment is continuous and the speed is smooth.

The invention discloses an air bridge production method of compound semi-conductive microwave large powder device, mainly for resolving the problems of prior art which air bridge has low arch height, narrow width, and low reliability. And the production comprises that respectively coating remove adhesive and photo-etching adhesive with different pre-bake temperatures on a substrate, and etching a bridge area and an electrode area, to form a sacrificial layer, then baking the substrate at 135-145Deg. C for 15-25min, to form the sacrificial layer into arch structure, depositing a plating start layer at 80-100nm on the sacrificial layer, coating a photo-etching adhesive on the plating start layer, etching a bridge area and an electrode area, then in non-cyanide plating liquid, using plating method, to plate an Au layer on the etched bridge area and electrode area, at least, removing the mask photo-etching adhesive, removing Au and Ti of the plating start layer, removing the sacrificial layer, to obtain an arch air bridge. The invention has the advantages with high arch height, wide width, and high reliability.

The invention relates to a pushing type tile shape magnet internal and external cambered surface and mongline bidirectional automatic chamfering compound grinding machine, comprising an electrical appliance control system, an electromotor and reduction box thereof. The compound grinding machine is characterized in that a magnetic tile feeding pushing type advancing mechanism is arranged; a grinding head grinding wheel component used for grinding tile shape magnet outer arc cambered surface is arranged; a grinding head grinding wheel component used for grinding tile shape magnet inner arc cambered surface, chord width and arch height is arranged; a horizontal swing pusher dog is arranged behind the two grinding heads and grinding wheels; a chamfering movement mechanism is arranged behind the horizontal swing pusher dog, and the chamfering movement mechanism comprises a tooling moving up and down and a chamfering grinding head grinding wheel component. The invention has the positive effects that automatic processing of outer cambered surface, inner cambered surface, chord width, arch height, outer arc end face chamfer and inner arc end face chamfer can be finished in one step by a complete machine for 'short wide flat magnetic tile', labour and processing time are saved, energy consumption is reduced, and labour productivity and quality percent of pass are improved.

A system of progressively-sized orthotic inserts is provided to allow increasing measured support that corresponds with the changes that occur in a child's arch as the foot develops. The orthotic insert system is designed to address the specific needs found in the foot for children of ages of about 2-8 years. Each of the plurality of inserts is designed to encompass two shoe sizes and vary in arch height relative to the insert length so that motion control and stabilization for the child's foot is provided. In addition, a contoured heel cup and rear foot post is provided to position the foot in a neutral position.

The invention relates to a construction method of integrally rotating, drawing up and slipping a large steel arch structure, belonging to the technical field of construction. The method is realized in a construction environment formed by large steel arches and a series of construction auxiliary equipment according to some steps. The large steel arches are assembled on the ground after parallel movement having a certain distance with a design position, and then rotate and carry out drawing up around two skewback connecting lines; rotation and drawing up of each large steel arch are realized by depending on pulling up a sling by a cross-core jack arranged at the top part of an A-shaped support frame; controlling each large steel arch to slip after rotating and drawing up each large steel arch to a state of a little inclining with a vertical surface so as to boost the jack to force the push force on skewbacks and enable each large steel arch to slowly slip in a grading way by making use of the forward push force of the skewbacks under the deadweight action; at each grading target state position, the slippage of each steel arch is paused so as to carry out regulation of large steel arch height once; and after the skewbacks slip to the design position, the height of each large steel arch is regulated for the last time so as to enable each large steel arch to achieve a design configuration and fix the skewbacks according to the design requirements finally.

The invention provides a method and device for support design of a three-soft coal bed mining roadway, and belongs to the technical field of coal mining. The problems that in the prior art, support parameter design for the three-soft coal bed mining roadway is not reasonable, and consequently roadway supports fail, the roadway repair cost is increased, and safe and efficient production of mines is seriously affected can be solved. The method includes the steps that the structure of the three-soft coal bed mining roadway is sequentially divided into a roadway roof, two roadsides and a roadway floor from top to bottom; a roof limit equilibrium arch equation, the roof limit equilibrium arch height and the maximum damage depth of the two roadsides are sequentially determined according to the limit equilibrium ring theory of surrounding rock of the three-soft coal bed mining roadway and stress analysis of a rock layer of the roadway roof, coal layers at the two roadsides and a rock layer of the roadway floor; the roof anchor rope length is determined according to the roof limit equilibrium arch height, the anchor rope anchoring section length and the anchor rope exposed length; and the lengths of anchor rods of the two roadsides are determined according to the maximum damage depth of the two roadsides, the anchor rod anchoring section length and the anchor rod exposed length.

The invention relates to skylight glass for adjusting the atmosphere in a vehicle, which comprises a first glass plate, an adhesive layer, a flexible sheet body layer and a second glass plate which are sequentially laminated from top to bottom, a light source is arranged at the side edge of the second glass plate, the refractive index of the second glass plate is larger than that of the flexible sheet body layer, the lower surface of the flexible sheet body layer is provided with a reflecting pattern, the boundary of the flexible sheet body layer is contracted inwards by 3-30mm relative to theboundary of the second glass plate, the adhesive layer and the second glass plate are jointly sealed and coated with the flexible sheet body layer, and the lower surface of the flexible sheet body layer is tightly attached to the upper surface of the second glass plate. The reflecting pattern is directly made on the flexible sheet body layer, so that the reflecting pattern can be better attachedto the glass model with a small curvature and a large arch height, the lower surface of the flexible sheet body layer is tightly attached to the upper surface of the second glass plate, the reflectingpattern is directly contacted with the upper surface of the second glass plate, therefore, the formed planar light source has obvious luminous effect and can create good in-vehicle atmosphere.

The present invention provides a circular cross cable antenna which comprises an annular truss and a front cable net and a back cable net which are interlaced by cables. The annular truss comprises aplurality of vertical rods and inclined rods with the equal number. Nodes on the circumference of the front cable net are correspondingly connected to connection parts of the vertical rods and the inclined rods at the top of the annular truss, the front cable net and the back cable net are paraboloids and are in symmetrical arrangement, nodes corresponding to non-intersecting parts of the front cable net and the back cable net are connected by flexible ropes, and nodes corresponding to intersecting parts of the front cable net and the back cable net are connected by support rods. According tothe circular cross cable antenna, a ring-shaped expandable structure is adopted, so the weight is small, the profile precision is good, the storage ratio is high, the excessive arch height is avoided,the overlarge antenna folding size is avoided, the weight of the antenna is reduced, symmetrical cable net structures are used by front and back cable net surfaces, and the good structural stabilityis provided.

A method for making a customized sole insert for a user is disclosed. The insert is first manufactured in various sizes, widths and arch heights so that a user may select the insert best configured for his foot. The insert is initially comprised of a bottom layer or shell; a formable layer which can be hardened into a particular shape; and a top cushion layer for contact with a wearer's foot or sock. The shell has an aperture for injecting a hardening agent to accelerate the hardening of the formable layer. After the insert is selected, the hardening agent is injected through the aperture and the wearer stands upon the top cushion layer until the formable layer has hardened. The result is a formable layer which is substantially conformed to the plantar aspect of the wearer's foot.

A foot measuring device and method measure foot last/curvature, foot width, foot length, arch height, foot volume, first metatarsophalangeal (MTP) joint flexibility and standing rear foot pronation. The foot measuring device includes a base having a heel abutment member, a foot size and alignment graphic, an arch height measurement system, and a MTP joint flexibility measurement lever.

The invention provides a coal-water dual-resource mine mining mode without change of hydrogeological conditions of overlying strata. The coal-water dual-resource mine mining mode comprises steps as follows: mining areas are divided according to developing height of a water flowing fracture zone, water mining grade and degree of allowable mining failure of water; a mining mode is determined according to the divided mining areas; direct mining is performed in a minable area; under the condition that an area which is not suitable for being mined does not meet the security requirement, short-wallmechanization mining is adopted, and the security requirement means that the water inflow of a working face does not affect normal production; if the short-wall mechanization mining is selected, depthof a coal seam is replaced with pressure arch height for calculation in security coefficient calculation, and mining width and retaining width of the short-wall mechanization mining are determined according to the security coefficient; the coal-water dual-resource mine mining without change of the hydrogeological conditions of the overlying strata is performed according to the mining mode; the mining mode replaces a long-wall large-mining-height mining mode, so that damage to the environment in a coal mining process is greatly reduced, and the mode is conducive to harmony between man and nature.

The invention relates to a geodesic line interpolation method with geodesic line arch height tolerance constrained. The geodesic line interpolation method comprises the following steps: reading in longitude and latitude coordinates of a starting point and an end point of a geodesic line; setting the geodesic line arch height tolerance; calculating length, an initial azimuth and midpoints of the longitude and latitude coordinates of each unlabeled broken line section; calculating radium vector of point of tangency of the point on an earth ellipsoid; calculating spatial rectangular coordinates of the starting point and end point of each unlabeled broken line section; calculating geodesic line arch height of each unlabelled broken line section; sequentially judging relation between the geodesic line arch height of each unlabelled broken line section and the geodesic line arch height tolerance, carrying out bipartition encryption interpolation treatment on the broken line section if the geodesic line arch height of the broken line section is higher than the geodesic line arch height tolerance, and carrying out no interpolation treatment on the broken line section if the geodesic line arch height of the broken line section is less than or equal to the geodesic line arch height tolerance. The geodesic line interpolation method provided by the invention has the advantage that preciseplotting of a geodesic line with any length under specified precision and threshold conditions is realized through adaptive adjustment and matching between geodesic line plotting precision and interpolation distance.

The invention discloses a support device used for urological surgery, and relates to the technical field of medical devices. The device includes a bottom plate, a sliding plate is arranged on the a support frame, a drive arc plate is arranged on the support frame, the right side of the support frame is fixedly provided with a servo motor, an output shaft of the servo motor is coaxially and fixedlyprovided with a worm, the right side of the support frame is vertically and slidably provided with a lifting spur rack meshed with an outer gear, the lifting spur rack is horizontally and fixedly provided with a support plate, the upper surface of the support plate is provided with two placement grooves, and an included angle is formed between the two placement grooves. The device is simple and convenient to adjust, the workload is small, the servo motor drives the worm to rotate to achieve adjustment of the upper and lower positions of the lifting spur rack, and the height of the legs of a patient can be adjusted. The sliding plate can move horizontally, the adjustment of the distance between the leg and a sickbed is convenient, the device is suitable for patients different in height touse, an adjusting plate can slide along a placement groove, arching height adjustment of the patient's leg is convenient, and the device makes doctors better perform the urological surgery.

The invention relates to a full-oxygen glass melting furnace. A construction method of electric melting AZS (alumina-zirconia-silica) or electro melting corundum brick crowns of the full-oxygen glass melting furnace comprises the steps that a movable falsework is erected; bricks are sequentially transported to the two sides in the furnace; during mounting, spacings between skew bricks and springer beams are adjusted from the skew bricks on the two sides; the bricks behind skews are sequentially mounted from left to right; the bricks with faulting or position unconformity can be hammered by a raising hammer, or moved by a crowbar; when the last three seal bricks are mounted, spacings between the upper surfaces and the lower surfaces of the bricks are measured; any error is adjusted timely; or when a seal position is 1mm smaller, hammering is performed by a wooden hammer during sealing; each crown comprises five or seven rings; each crown is designed with an expansion joint; after one crown is built up, the dimension of the whole crown is detected, the chord length and the arch height of each crown are recorded, and compared with data provided by pre-assembly, and rectification is performed timely if any problem; and construction is accomplished. The construction method is convenient to construct, and the assembly quality can be ensured.

The invention provides a method for acquiring the pile-soil stress ratio of a pile-supported roadbed under a particle crushing condition. The method comprises the following steps: determining a particle damage index Br; Determining a soil body particle size coefficient nd according to the particle damage index Br; Determining the arch height hc and the arch angle alpha h of the soil arch accordingto the soil particle size coefficient n; And determining the pile-soil stress ratio of the pile-supported roadbed according to the arch height hc and the arch angle alpha h of the soil arch. The method for obtaining the pile-supported roadbed pile-soil stress ratio under the particle crushing condition can determine the load sharing condition of the pile-supported roadbed pile-soil-network, can be used for accurately calculating post-construction settlement of the pile-supported subgrade, can reduce subgrade diseases caused by soil arch damage, and save the line operation and maintenance cost.

The invention provides a distributed monitoring method and system for arching of a track plate. Through the synergistic effect of the inclination angle sensor, the microcontroller and the aggregationnode, the upward arching angle of the track plate is detected in real time; data processing is carried out on the upwarp angle; the angle value detected when a train passes by is filtered out, so thatthe angle value measured when the track plate is static is reserved, the upward arching angle value of the track plate is converted into the upward arching height to be output, the output upward arching height can be compared with the maximum upward arching height allowed by the track plate to judge whether the limit is exceeded or not, and then whether alarm needs to be given or not is further judged. A real-time monitoring mode is adopted in the control process, the upward arching angle change of the track plate is detected, and the detection efficiency is improved.

The invention relates to the field of preparation of glass and discloses a flame space of a pure oxygen combustion kiln, the pure oxygen combustion kiln and a method for preparing a glass liquid. The flame space is a space formed by front and rear gable walls, a breast wall (2) and a crown (1) and is matched with a melting tank (4) located below the flame space; a combustor (3) is arranged in the breast wall; a liquid surface scale mark (11) is arranged on a tank wall of the melting tank; h1/L=1:(7.5-9), (h1+h2)/H=(1.3-1.8) and L1=90cm-110cm; h1 is the arch height of the crown, L is the arch span of the crown and h2 is the height of the breast wall; H is the vertical height between the liquid surface scale mark and the tank bottom of the melting tank; and L1 is the vertical height between the combustor and a crown top of the crown. The pure oxygen combustion kiln comprising the flame space can be used for preparing high-quality, stable and uniform glass liquid and the melting rate and the yield of the glass are improved; and the service life is obviously prolonged.