768results about How to "Guaranteed coincidence" patented technology

The invention which belongs to the field of civil engineering equipment relates to a full-automatic, digital and large frozen soil direct shear apparatus. The large frozen soil direct shear apparatus which comprises a shear box, a refrigeration system of an upper shear box, a refrigeration system of a lower shear box, a vertical servo loading and monitoring system, a horizontal servo loading and monitoring system, and a measurement and control system is to determine the shear strength of the freeze-thaw interface of the frozen soil or determine the shear strength of full frozen soil and full thawy soil. The size of a frozen soil sample in the embodiment of the invention is 305mm*305mm*200mm, static force and a layered compacting method are adopted to prepare remolded soil samples of different initial water contents and dry densities for shear tests; temperature control systems of the upper shear box and the lower shear box are adjusted to control the temperatures of soils in the shearboxes to guarantee the shear plane to be superposed with the freeze-thaw interface of the frozen soil sample. The direct shear apparatus of the present invention solves problems that the difficulty of testing the shear strength of the freeze-thaw interface is large, the shear tests of coarse grain soil are difficult and the like and provides reasonable design parameters for civil engineering and traffic engineering in cold or highly cold regions.

The invention relates to a concrete multi-factor durability test device under the common effect of tensile stress and environment, wherein, the lower part of a pull rod (8) is connected with a lower pull plate (13), the upper part of the pull rod (8) penetrates an upper pull plate (7) and a limit plate (4), the upper pull plate (7) is penetrated on the pull rod (8) to be fixed by a lock nut (6), a screw cap (2) presses a stress sensor (3) on the limit plate by a spherical screw rod (1), a spring (5) is sheathed on the spherical screw rod (1) and is positioned between the limit plate and the upper pull plate, an upper stretching chuck (91) and a lower stretching chuck (92) are arranged between the upper pull plate and the lower pull plate (13), the upper stretching chuck (91) is connected with the spherical head part of the spherical screw rod (1), the lower stretching chuck (92) is connected with the spherical head part of a spherical pull rod (12), a dumbbell-shaped concrete sample (10) is positioned between the upper stretching chuck (91) and the lower stretching chuck (92), the dumbbell-shaped concrete sample is held by the stretching chucks, both sides of the dumbbell-shaped concrete sample (10) are provided with constant force holding instruments (11), and the constant force holding instruments are connected with a non-metallic ultrasonic testing instrument (14).

The invention discloses a drilling method for a circuit board and belongs to the technical field of circuit board production. The drilling method comprises the following steps of setting a positioning target and a directional target on the circuit board, drilling a positioning hole in the positioning target and drilling a directional hole in the directional target; enabling the number of the directional target to be one and arranging the directional target in an area which is outside a horizontal central line and a longitudinal central line; identifying the direction of the circuit board through the directional hole, enabling a pin to penetrate the positioning hole and installing and fixing the circuit board and a cover plate; drilling the circuit board in the front side and the rear side and enabling the drilled holes in the front side and the rear side to be through holes. The drilling method for the circuit board can achieve circuit board drilling with the high thickness-diameter ratio and obtain high accuracy hole location.

The invention provides a method for automatically adjusting inclination between an image photographing module group sensor and a lens. The method comprises the following steps that test light is provided via a light source and a scalar board; a positioning platform drives the lens to move relative to the sensor according to a preset step; an image acquisition system acquires and transmits MTF data of test light of an image photographing module group; curve fitting is performed on the MTF data so that highest point distance difference of the MTF data of a designated area is obtained and thus degree of inclination between the image photographing module group sensor and the lens is calculated; and the image photographing module group is corrected via the positioning platform according to the degree of inclination. Curve fitting is performed on a high-step defocus curve to predict the calculation result of a low-step defocus curve so that efficiency of the whole test is enhanced. Besides, a six-degree-of-freedom parallel positioning platform can be used as the positioning platform so that the center of the positioning platform is ensured to be overlapped with the center of the sensor, and thus inclination between the sensor and the lens is ensured to be corrected accurately and timely.

A vertical shaft maglev wind power generator is composed of vanes, a rotary shaft, a power generator, a radial magnetic bearing, an axial TDOF magnetic bearing, an upper protection bearing, a lower protection bearing, an upper protection bearing retainer ring and a lower protection bearing retainer ring; the rotational part and the stationary part of the fan are not in mechanical contact, the mechanical friction in the fan is completely eliminated and the FDOF levitation of the fan rotor is realized. The axial magnetic bearing of the fan supplies gravity offset through 4 stator magnetic poles and the effect of a suction disc and performs axial translation and two radial rotational DOF control on the rotor; and the radial magnetic bearing finishes the two radial translation control of the fan rotor. The invention has reasonable layout of the components, completely eliminates the friction problem of the vertical shaft fan bearing, greatly reduces the starting wind speed of the wind power generator and improves the wind energy utilization rate.

The invention discloses an inner cork stoppling machine, which comprises a rack and a control unit, wherein an upper cork feed device and a lower cork feed device are arranged on the rack, an alignment device which is used for making an upper cork be aligned with a lower cork and an extruding device which extrudes the upper cork into the lower cork are arranged between the upper cork feed device and the lower cork feed device, the alignment device is positioned above the extruding device, one side of the extruding device is provided with a discharge device, and the discharge device is connected with the lower cork feed device; and the upper cork feed device, the lower cork feed device, the alignment device, the extruding device and the discharge device are respectively and electrically connected with the control unit. The invention has the following advantages that: the automated operation mode is realized, the working efficiency is improved, the labor force is reduced, and only one worker is required to be in charge of watching and operating the inner cork stoppling machine.

The invention discloses a robot tool central point calibration method using a two-dimensional measurement functional tablet. A robot is controlled to enable a TCP to make contact with a measurement area of a calibration tool more than three times in different postures in the calibration process, joint coordinate information of the robot is recorded in the contact process, and the two-dimensional coordinates of the contact points in a measurement plane are output through the two-dimensional position measurement function of the calibration tool; the coordinates of the TCP in a robot tail end tool coordinate system are calculated according to measured joint rotation angle information of the robot and the coordinate data of the contact points on the tablet and in combination with the structural parameters of the robot, and the calibration accuracy is evaluated. According to the calibration method, the TCP of the robot does not need to coincide with the same fixed point multiple times, the point-point coincidence requirement is weakened to point-surface coincidence, and operation is easy. When the TCP of the robot has small deviation, autonomous calibration can be realized.

The invention provides an ankle joint rehabilitation mechanism with driving branch chains arranged obliquely and relates to the field of rehabilitation medicine instruments. The ankle joint rehabilitation mechanism comprises a base, a movable platform, the driving branch chains and a restraining branch chain. The restraining branch chain comprises a lower rotating connecting rod, a first symmetric connecting rod, a second symmetric connecting rod and an upper arc connecting rod, wherein the lower rotating connecting rod is connected with a central shaft of the base through a bearing. The movable platform comprises a foot baffle, an upper platform body, a lower platform body and a connecting piece located between the two platform bodies, wherein the position, relative to the upper platform body, of the feet can be adjusted through the foot baffle and the connecting piece. The driving branch chains comprise the first driving branch chain, the second driving branch chain and the third driving branch chain, and the three driving branch chains are UPS branch chains arranged obliquely with the same oblique angle. By means of the structure, the movable platform can rotate in three mutually orthogonal directions, and meanwhile it can be ensured that the rotating center of the movable platform coincides with the rotating center of the ankles. The ankle joint rehabilitation mechanism is simple, stable in driving and low in cost; in addition, the driving branch chains are arranged obliquely to avoid the singular configuration of the mechanism, and good kinematic performance is achieved.

The invention discloses a directional static blasting construction method for a foundation pit stratum and a combined guiding device for the directional static blasting construction method. The directional static blasting construction method for the foundation pit stratum comprises the first step of field testing, the second step of chemical hole opening arranging, the third step of chemical hole drilling, the fourth step of grout preparing, the fifth step of grout filling, the sixth step of combined guiding device arranging, the seventh step of blasting, slag discharging and combined guiding device recycling and the eighth step of dewatering maintaining. The combined guiding device for directional static blasting is formed by combining long-strip steel sheets and a metal square pipe with guiding square holes for the long-strip steel sheets to penetrate. The long-strip guiding steel sheets are placed in static blasting chemical holes, and consequently penetrating main cracks are generated by a rock mass in the width direction of the long-strip steel sheets. Meanwhile, compared with a conventional static blasting method, the distance of the chemical holes is increased by 1.3-1.5 times in the method, the effect of directional rock mass fracturing is achieved, and meanwhile the blasting efficiency is improved.

The invention belongs to the field of electric fluid dynamics spray printing, and discloses a complex surface circuit conformal spray printing method and equipment. The equipment comprises a spherical motor module, a translation module and a conformal spray printing module. The translation module drives the spherical motor module to move in an X-axis direction and a Y-axis direction in a plane; the conformal spray printing module comprises a spray head part and an electric signal part; the spray head part moves up and down so as to realize a freedom degree of a Z-axis direction; the electric signal part applies voltage on an ink fluid and an electrode ring in an ink cartridge; the spherical motor module rotates around the X-axis direction, the Y-axis direction and the Z-axis direction so as to realize six-degree-of-freedom motion of an object to be spray-printed; a curve surface base plate is grounded, so that the electric potential of the object to be sprayed-printed is zero; and the voltage applied in the ink fluid is higher than the voltage applied in the electrode ring, so that a gradient electric potential difference is formed on the ink fluid, the electrode ring and the object to be spray-printed. Through the complex surface circuit conformal spray printing method and the equipment provided by the invention, a conformal patterning electric spray-printing process of a complex surface is realized, an application range of the electric spray-printing process is improved, the manufacturing cost is reduced, and the printing accuracy is improved.

The invention discloses an artillery barrel bore detecting system, which structurally comprises a centering mechanism and an inner diameter measurement mechanism both mounted on a shaft lever. The centering mechanism comprises a fixed plate fixed on the shaft lever, a plurality of umbrella ribs with end parts hinged to the fixed plate and circling the fixed plate, and an elastic support mechanism mounted on the shaft lever and used for propping open the umbrella ribs. The elastic support mechanism comprises a slide block connected onto the shaft lever in a sliding manner, a spring sleeved on the shaft lever in a penetrating manner, and a stop block fixedly connected to the shaft lever, wherein the spring is positioned between the slide block and the stop block, and a support arm connected with the umbrella ribs in a sliding manner is arranged on the slide block. The detecting system is convenient to assemble, adjust, and operate, is applicable to various barrels with a diameter ranging from 100mm to 155mm, and can be used for observing image information in a tube body while detecting tube inner diameter, so that the detection results can be more reliable.

The invention provides a locatable bilinear cumulative blasting device in a smooth blasting hole and a blasting method. A push rod device can be arranged for pushing a bilinear cumulative explosive tube into the smooth blasting hole; the bilinear cumulative explosive tube can be rotationally regulated to make sure that the center line of a bilinear cumulative groove is overlapped with the center line of the smooth blasting hole and the outline of a tunnel; energy generated by explosion of explosives is intensively released along the outline direction of the tunnel, and a smooth and regular tunnel outline surface can be formed after explosion. The device and the method disclosed by the invention have the advantages of improving the structure of a center positioning device in the smooth blasting hole, reducing the contact area between the center positioning device and the smooth blasting hole, reducing the resistance generated by pushing the bilinear cumulative blasting device into the smooth blasting hole, realizing smooth hole mounting operation of the cumulative blasting device, satisfying the production and design requirements, also reducing damages caused to the surrounding rocks by explosion of the explosives, and lowering the support and protection costs of rock tunnels.

A method for designing an integrated circuit such as a VLSI circuit, in particular optimizing delay of a signal transmitting through signal lines connecting a signal supplying source to each of elements, whereby skew can be decreased. The method can include determining whether the signal source satisfies a fan-out restriction if the signal source supplies a signal to all of the driven elements which are directly connected to the signal source, dividing the elements into groups so that the fan-out restriction is satisfied in each of the groups and each of the groups has the same or substantially same load capacity, when the signal source does not satisfy the fan-out restriction, and inserting into each group, a buffer having a size which makes the groups of elements satisfy the fan-out restriction. The dividing and the buffer inserting are repeated until a positive determination is delivered on the fan-out restriction.

The invention belongs to the technical field of building material, and more particularly relates to a double-layer resin glazed tile which takes on a sheet shape or a plate shape and is formed by a plurality of wave peaks and/ or wave troughs which are sequentially connected. The glazed tile is formed by a surface layer and a bottom layer, wherein the surface layer is formed by modified resin ASA, and the bottom layer is formed by 60-80% of polyvinyl chloride resin, 1-3% of foaming agent, 8-15% of shock-resistant modifying agent, 2-5% of lubricating agent and 9-17% of processing auxiliary agent by weight percent, wherein the foaming agent is azo-compound or/ and sodium hydrogen carbonate, the shock-resistant modifying agent is chlorinated polyethylene, the lubricating agent is one or mixture of more in oxidized polyethlene wax, stearic acids or paraffin, and the processing auxiliary agent is one or mixture of more in ACR, compound stabilizer, calcium carbonate or pigment. The glazed tile is light in weight and durable, and has good effects of noise reduction and heat insulation.

The invention discloses a side open type carriage welding turnover work center belonging to automobile crane carriage welding displacement equipment. The turnover center comprises a side open welding positioner, a three-dimensional feeding trolley, a lifting platform and an electric control system, wherein the three-dimensional feeding trolley is located in the middle of the side open welding positioner, the lifting platform is arranged in front of the side open welding positioner, the three-dimensional feeding trolley is arranged on rails which are perpendicular to the side open welding positioner, and the electric control system is simultaneously connected with the three-dimensional feeding trolley, the lifting platform and the side open welding positioner. The side open type carriage welding turnover work center has the advantages that firstly, two side open tilters commonly use one feeding trolley, thus the turnover work center is compact in structure, secondly, the lateral faces of the tilters are open for realizing the positioning of work-pieces, thirdly, the work-pieces can be automatically clamped, and production efficiency are high, fourthly, 180-degree idle rotation can be realized in a turnover ring, which realizes the requirement that carriages are positively fed and reversely discharged, and fifthly, welding operations of workers are convenient.

The invention discloses a sliding positioning guide device which comprises an arc-shaped fixing arm including an arc-shaped chute, an arc-shaped sliding arm matched with the arc-shaped chute, a positioning puncture needle matched with a positioning needle and a skeleton fixing part installed in a drill bit sleeve. The starting end of the arc-shaped fixing arm is provided with the drill bit sleeve radially extending along the arc-shaped fixing arm, and the drill bit sleeve is provided with a fixing screw for fixing the drill bit sleeve. The tail end of the fixing arm is provided with a fixing screw for fixing the sliding arm in the arc-shaped chute, the tail end of the sliding arm is provided with the positioning needle radially extending along the arc-shaped sliding arm, and the positioning needle is provided with a fixing screw for fixing the positioning needle. The arc-shaped fixing arm and the arc-shaped sliding arm are con-cyclic, the skeleton fixing part and the positioning needle are located on the same horizontal plane, and the skeleton fixing part installing the drill bit sleeve and the positioning needle encounter at the center of the circle. The sliding positioning guide device is simple in structure, convenient to operate and capable of accurately and rapidly enabling a drill bit or a guide needle to penetrate an appropriate position, reduces secondary operation injury on local soft tissues, shortens the operation time, reduces bleeding, reduces complications of postoperative patients and shortens the hospital stays.

The invention relates to a lead-connecting device in a power system. The device comprises a hydraulic press binding clip and a hydraulic system matched with the same and is characterized in that a guide rail is fixed on a worktable, a trolley which can move along the guide rail and is provided with the hydraulic press binding clip is mounted on the guide rail, the hydraulic press binding clip is fixed on a fixed plate on the trolley, a lifting device and a guiding device for moving the fixed plate up and down are mounted between the fixed plate and the trolley, a fixed frame is mounted on the worktable at one end of the trolley and provided with a lead-clamping device, a lead-clamping trolley which can move along the guide rail is mounted on a guide rail at the other end of the trolley and is provided with a lead-clamping device, and the lifting device, the guiding device and a tension device which pulls the lead-clamping trolley to move along the guide rail are mounted on the lead-clamping trolley. The invention has the advantages of reasonable structure, convenient use and high working efficiency and lead-connecting quality.

The invention provides a linear motion based antenna gain direction diagram measurement method. The measurement method includes: S1, determining far-field test conditions of a to-be-tested antenna; S2, allowing the to-be-tested antenna to be vertical to the central normal direction to plan a linear motion track; S3, placing a reference antenna at the endpoint of the linear motion track and allowing the central normal of the reference antenna to align to the to-be-tested antenna; S4, according to radio frequency power level received by the reference antenna, calculating equivalent power at the intersection point of a circle taking the to-be-tested antenna as the center and the far-field test distance as the radius and a connecting line of the reference antenna and the to-be-tested antenna; S5, controlling the reference antenna to displace continuously on the linear motion track, and calculating the equivalent power after each displacement, wherein the central normal aligns to the to-be-tested antenna after each displacement; S6, calculating transmitting power according to the equivalent power of the S4 and the S5 to obtain a transmitting gain direction diagram. The gain direction diagram can be measured through the linear motion of the reference antenna.

This invention is a motorized valve that is used to adjust refrigerant quantity of refrigerating system. Guiding element and nut are arranged at upper and lower sides of magnet inside of the holding cavity. The said guiding element has guiding hole. The said nut includes internal screw thread section and lower guiding section. The said lead screw includes intermediate external thread section, upper and lower guiding sections that protrude from upper and lower end faces of magnet. The said external and internal thread sections are cooperated. The said upper guiding section is located in the said guiding hole of guiding element. The said lower guiding section is located in the lower guiding section of the said nut. This invention extends the guiding length of lead screw. It can reduce the swing range of lead screw. This invention decreases magnet vibration and increases the abrasion resistant capability of thread section.

The invention relates to an overhead power transmission line electrification deicing device. The overhead power transmission line electrification deicing device includes an insulating deicing bar; the deicing bar is erected at one side of a power transmission line through a carrier frame; the carrier frame is provided with a driving mechanism; the carrier frame comprises two upright rods arranged in parallel; the two upright rods are positioned through at least two parallelly-arranged transverse rods between the two upright rods; the top end of each upright rod is suspended on the power transmission line through a suspending mechanism respectively; the deicing bar is vertically arranged on an end portion of a first transverse rod, wherein the end portion of the first transverse rod extends out from the upright rods; the height of the deicing bar is corresponding to the height of the top end of the upright rods; and the driving mechanism comprises a driving wheel and an insulating transmission rod wound on the driving wheel. The overhead power transmission line electrification deicing device of the invention is simple in structure. With the overhead power transmission line electrification deicing device adopted, deicing operation can be performed under a situation of electrification of a whole line, and the reliability and quality of power supply of a power system can be effectively ensured on the premise that the efficiency of the deicing operation can be improved.

The invention discloses an automatic adhering and laminating device for an in-mold motor core. The automatic adhering and laminating device comprises a material strip, a blanking male die and a blanking female die, wherein the blanking male die is arranged at the upper part of the material strip; the blanking female die matched with the blanking male die is arranged at the lower part of the material strip; a locking ring is arranged at the lower part of the blanking female die; a cooling pipe is arranged at the lower part of the locking ring; heating coils are arranged at two sides of the locking ring; and an adhering device is arranged at the left side of each heating coil. The automatic adhering and laminating device has the beneficial effects that synchronous stamping and bonding are achieved through the arranged adhering device, no point for laminated riveting exists on punching plates, a core product is smooth in surface and small in magnetic resistance effect and a layer of quick-drying anaerobic adhesive is arranged between two punching plates to play a certain insulating effect; by adopting the locking ring, the perpendicularity and the planeness of the core and the coincidence degree between the adjacent punching plates are ensured under the action of the gravity and the impact force of the product; and full-automatic digital control of high-temperature baking and fast cooling is achieved through a heating device and a cooling device.