118results about How to "Constant spacing" patented technology

The invention discloses a contact-type reliability test bed capable of conducting mixed loading on an electric main shaft. The test bed is composed of the electric main shaft, a connecting shaft unit, a torque loading device, a radial force electromagnetic loading device, an axial force electromagnetic loading device and a swing arm device. The test bed can load an axial force, a radial force and a torque on the electric main shaft at the same time, control the magnitudes of the three forces in a coordinate mode to simulate cutting forces in different magnitudes and different directions, really and reliably simulate the cutting forces of the electric shaft in practical working conditions, and provide a test foundation for reliability acceleration tests of the electric shaft.

The present invention relates to one adsorbing and rotating reversing device for the production of disposable toilet paper, and provides one transferring and reversing device with stable adsorbing transfer, constant transfer angle and convenient regulation of adsorption number. The transferring and reversing device features the chuck rotating mechanism comprising ring cam seat fixed on the main bearing seat and with spiral cam slot on the ring wall; the hollow chuck shaft with cam arm and cam connected in the lower end; and the hollow shaft below the chuck fixed inside the radial hole of the rotating disc. The device of the present invention can ensure the constant reversing interval, constant adsorbing disc angle, stable adsorption and precise transfer.

The invention provides a device suitable for multi-terrain automatic tree planting, and belongs to the technical field of tree planting devices. According to the technical scheme, the device applicable to multi-terrain automatic tree planting comprises a frame, a walking component arranged at the bottom of the frame, an earth cutting and drilling mechanism arranged at the front end of the frame, aseedling preparation component arranged at the top of the frame, a seedling preparation driving assembly arranged on the frame and used for controlling the seedling preparation component, and a treeplanting assembly arranged on the rear end of the frame and matched with the output end of the seedling preparation component. The device has the beneficial effects that the device suitable for multi-terrain automatic tree planting is high in automation degree, high in tree planting operation efficiency, high in planting quality, accurate in conveying, good in continuity and high in sapling survival rate.

Disclosed is a structure for precision control of electrical impedance of signal transmission circuit board. A substrate forms thereon a plurality of first signal transmission lines, and a first covering insulation layer is formed on a first surface of the substrate to cover a surface of each first signal transmission lines and each spacing section formed between adjacent first signal transmission lines. Each first signal transmission lines can transmit a differential mode signal or a common mode signal. At least one first flattening insulation layer is formed between a surface of the first covering insulation layer and a first conductive shielding layer so that the first flattening insulation layer fills up the height difference between the surface of each first signal transmission line and the spacing section associated with each first signal transmission line to thereby ensure a consistent distance between the signal transmission lines and the conductive shielding layer for realizing precision control of electrical impedance of the signal transmission circuit board.

A waste water treating device and method based on an electrochemical principle comprises a reaction tank, an electrode A, an electrode B, an electrode fixing strip, an electrode supporting column, a stirring paddle and rotating shafts, wherein the reaction tank is cylindrical; flanges and flange covers are arranged at the upper end and the lower end of the reaction tank; each rotating shaft is mounted in the center of the corresponding flange cover through a bearing; the electrode supporting column is fixed on the flange cover of the lower part of the reaction tank; the electrode A and the electrode B are alternately stacked at the upper end of the electrode supporting column; the stirring paddle is placed between the electrode A and the electrode B; the diameters of center holes of the electrode A and the electrode B are greater than the diameter of each rotating shaft; the center hole of the stirring paddle is matched with the outer diameter of the rotating shaft; one side of the electrode fixing strip is fixed on the inner wall of the reaction tank; and the other side of the electrode fixing strip is clamped in grooves in the periphery of the electrode A and the periphery of the electrode B. The distance between pole plates is adjusted adaptively and is not changed, a bidirectional pulse power supply is used, passivation of the electrodes is prevented, the stirring paddle accelerates migration of ions and air bubbles on the pole plates, and matters attached to the pole plates are removed.

The invention discloses an induction heating method suitable for steel plates with any warping degree. Firstly, a steel plate (2) is moved to an inlet of inductors (8) of an induction heating furnace through a roller bed system (1), displacement sensors (5) located on the upper portion of the front end of each upper inductor (3) are used for detecting the distance between the surface of the steel plate and the sensors and sending a measurement result to an intelligent processing unit; secondly, the intelligent processing unit works out the warping degree of the steel plate and an upper inductor position adjusting mode and sends the warping degree of the steel plate and the upper inductor position adjusting mode to a PLC control system; thirdly, the PLC control system sends adjustment commands to an upper inductor position adjusting system (4), so that the distance between the steel plate and the upper inductors is kept relatively constant; and fourthly, when the steel plate enters the inductors, infrared temperature measuring units (6) mounted at the inlet ends of the upper inductors are used for detecting the temperature of the steel plate, power needed for heating the steel plate to a target temperature is worked out, and an inductor heating system is started to heat the steel plate, so that when the steel plate leaves the induction heating furnace, the temperature of the steel plate reaches the target temperature.

The present invention relates to the technical field of dosing, in particular to a vertical high-precision powder dosing device with three-axis movement; the dosing device is suitable for the industryof fine chemicals, and the industry of new energy, food and medicine, and includes a frame; a material storage bin is arranged above the frame; a feeding port is arranged at the top of the material storage bin; a discharging port is arranged at the bottom of the material storage bin; the frame close to the discharging port is provided with a door opening and closing mechanism for closing or opening the discharging port; a blanking unit for outputting materials is arranged in the material storage bin; a conveying unit used for conveying a container to the discharging port of the material storage bin is arranged below the material storage bin; a conveying platform used for bearing the conveying unit is arranged on the frame; and a moving jacking unit used for jacking and moving the entire conveying unit from the conveying platform is arranged below the conveying unit. The dosing device of the present invention adopts an internal vertical spiral feeding mode and is combined with an external double-shaft mode of stirring and arch breaking, and the internal and external double shafts are respectively driven by double motors, and thus the structure of the dosing device is independent.

The invention discloses a suspension armrest which is mounted on a backrest and comprises a gravity assembly and a locking mechanism. The gravity assembly rotates along with the armrest, the armrest is positioned at an inclined position, the gravity assembly unlocks the locking mechanism, the armrest can horizontally rotate and is positioned at a horizontal position, the gravity assembly locks thelocking mechanism, and the armrest is locked at the horizontal position. According to the suspension armrest, the armrest is mounted on the backrest to ensure unchanged distance between the shoulderof the backrest and the armrest, and the armrest can be adjusted to the horizontal position and can be locked when the backrest is at an optional position of a front and back adjustment area, so thata forearm of a passenger can constantly and horizontally lean against the armrest by a proper distance.

The invention provides a cropping working station for a PIN material strap. The cropping working station comprises a cropping mechanism cropping the PIN material strap into separated PINs, a feeding mechanism feeding the PIN material strap to the cropping mechanism, and a PIN distributing mechanism. The PIN distributing mechanism is used for clamping a set number of PINs from the cropping mechanism and distributing the clamped PINs so as to enable the PINs to be distributed according to preset intervals. According to the cropping working station for the PIN material strap, the PIN material strap can be cropped into the separated PINs, the set number of PINs can be distributed so that the PINs can be distributed according to the preset intervals, full automation of the PIN cropping and distributing technology can be achieved, production efficiency is high, the interval accuracy of the PINs is high, and manpower cost is reduced.

The invention discloses a vertical grinding roller sand making machine. The machine comprises a base, a lower shell on the base and an upper shell which is connected with the lower shell and provided with a feed port, wherein a discharge port is formed on one side of the lower shell; a turnplate is arranged in the lower shell, and connected with a power mechanism; a crushing roller is arranged in the upper shell; and the crushing roller and the edge of the turnplate are alternately arranged. By adopting an incomplete bed grinding principle, a material between the crushing roller and the turnplate is instantly crushed by virtue of crushing methods, such as rolling, friction, mutual cutting of materials and the like. The machine has the advantage of simple structure, high loading capacity, high finished product content, low unit energy consumption and high production efficiency.

The invention relates to a quasi-static anti-seismic test loading device with capacity of vertical uniform loading. The device comprises a vertical actuator, a distribution beam connected with the vertical actuator, a horizontal transverse actuator, a connecting beam connected with the horizontal transverse actuator, a loading beam fixing plate, a plurality of screws penetrating the connecting beam and the loading beam fixing plate simultaneously, a rolling bar rail beam with one end fixed to the upper part of the connecting beam and a plurality of rolling bar assemblies, wherein each rollingbar assembly comprises a fixed frame and a plurality of rolling bars which are mounted in the fixed frame and roll in the same direction at constant intervals; steel rails and limiting plates are arranged on two sides of the top surface of the rolling bar rail beam, and anti-separating plates are arranged on two sides of the bottom surface. During operation, the bottom surface of the rolling bar rail beam is placed on the top surface of a loading beam, two side surfaces of the loading beam are located between the anti-separating plates, the plurality of rolling bar assemblies are placed alongthe steel rails and located between the limiting plates, the bottom surface of the distribution beam is pressed on all the rolling bars, and two end surfaces of the loading beam are pressed and fixedby the connecting beam and the loading beam fixing plate through screws. Vertical uniform loading is achieved by the device.

The invention discloses a front suspension rubber cushion for an engine. The front suspension rubber cushion comprises an upper rubber cushion and a lower rubber cushion with the same structure and symmetrically arranged in a mirror upward and downward direction. The upper rubber cushion and the lower rubber cushion comprise an upper framework, a lower framework and a rubber body arranged in the middle, wherein the upper framework and the lower framework are coaxially arranged, the rubber body is of an outer cylindrical inner conical surface structure, and the outer cylinder and the inner conical surface have the same central axis. The diameter of an upper port of the inner conical surface is larger than the diameter of a lower port; the lower framework is embedded in the bottom surface ofthe rubber body and integrally formed through vulcanization, the center of the lower framework is provided with a central sleeve mounting portion for mounting a center sleeve; the upper framework isarranged inside the upper end of the rubber body and integrally formed through vulcanization, the upper framework extends upwards along a central hole and is provided with a protrusion extending out of the surface of the rubber body, and the protrusion is used for being inserted into a mounting hole of a frame side support to prevent radial displacement; and the outer peripheral surface of the rubber body is wrapped with a hoop strap, an upper flange and a lower flange. The front suspension rubber cushion has good noise reduction and vibration damping effect while ensuring the suspension stiffness performance.

The invention relates to a gynecological moxa fumigation device with a moxa stick clamping function. The gynecological moxa fumigation device comprises a bed body, wherein four support legs are fixedto the lower side of the bed body; a cavity is disposed inside the bed body; a plurality of heat outlets are uniformly disposed on the upper side of the bed body and communicates the cavity with the outside; a mounting plate is disposed in the cavity; a height adapting device is disposed between the mounting plate and the inner bottom of the cavity; a plurality of ash trays are evenly arranged onthe upper side of the mounting plate, and are fixedly connected to the mounting plate through bolts; and moxa stick clamping devices are arranged in the ash trays. The gynecological moxa fumigation device has the beneficial effects that the two threaded slide blocks matching a threaded segment on a rotating rod move in opposite directions so that the verticality of a connecting rod is reduced andthe height of the mounting plate is increased; the rotation speed of the motor can be controlled to achieve a basically unchanged distance between the moxa sticks and a human body so as to achieve a moxa fumigation effect; and a support plate is inserted into a clamping sleeve, and supports moxa sticks so as to prevent the moxa sticks from falling.

The invention discloses a welding gun-fixed spindle-shaped wear resisting roller surface overlaying system. The system comprises a roller surface adjusting support column for penetrating through the axis of a grinding roller and fixing the grinding roller; two ends of the roller surface adjusting support column have the same distances from the grinding roller; a support column left mobile hydraulic cylinder and a support column right mobile hydraulic cylinder are respectively arranged at the two ends of the roller surface adjusting support column; piston rods of the support column left mobile hydraulic cylinder and the support column right mobile hydraulic cylinder are upwards vertically arranged, respectively; cylinder barrels of the support column left mobile hydraulic cylinder and the support column right mobile hydraulic cylinder both can linearly and horizontally move; and the upper ends of the piston rods of the support column left mobile hydraulic cylinder and the support column right mobile hydraulic cylinder are respectively hinged with the two ends of the roller surface adjusting support column. The welding gun-fixed spindle-shaped wear resisting roller surface overlaying system can automatically adjust the gesture of the grinding roller through equipment to match with overlaying equipment, so that the labor intensity of operators is reduced, and the production safety is improved.

A 3D memory device and a manufacture method thereof are disclosed. A 3D memory device include a substrate; A laminated structure on the substrate, the laminated structure comprising a plurality of alternately stacked conductor layers and a plurality of insulating layers; A plurality of memory strings running through the laminated structure; An electrically conductive contact extending through thelaminated structure; Wherein the conductive contact is in a polygonal line shape in a first direction perpendicular to the plurality of memory strings. The present invention employs conductive contacts through a laminated structure in a polygonal line shape in a first direction perpendicular to the plurality of memory strings. The conductive contacts extend along the array direction of the memorystrings, thereby reducing the warping deviation of the wafer in a plane perpendicular to the memory strings under a high stack and reducing the distance the metal layer is filled when the conductor layer is formed.

The invention discloses an LED lamp radiator which comprises a base for installing a light source. A plurality of heat conducting pieces are arranged on the base. The heat conducting pieces are in a U shape. Two U-shaped arms of each heat conducting piece are each provided with a radiating fin. The multiple heat conducting pieces are arranged at intervals into a row, so that the radiating fins on the two U-shaped arms of the heat conducting pieces are arranged at intervals to form two columns of radiating fin sets. Meanwhile, the two columns of radiating fin sets are each provided with a fixing device for keeping the distance between every two adjacent radiating fins to be fixed. According to the structure, heat can be better radiated from the radiating fins of the two columns of the radiating fin sets to the external environment, and the radiating performance of the radiator is greatly improved.

The invention provides a shielding cover, a circuit board assembly and electronic equipment. The shielding cover comprises a cover body, wherein the cover body and a circuit board jointly enclose a shielding region, and at least part of components on the circuit board are covered in the shielding region. The components located in the cover body comprise a first device, the first device has a step face facing the cover body, a reinforcing part is arranged in the region, corresponding to the step face of the first device, of the cover body, at least part of the structure of the reinforcing part is located in the region, right facing the step face, of the cover body, the space formed above the step face of the first device is utilized, the reinforcing part is additionally arranged to increase the strength of the cover body, the surrounding region of the part corresponding to the step surface on the cover body is prevented from collapsing, and the stability and reliability of the shielding cover are improved. Moreover, the distance between the first device and the adjacent components is kept unchanged or the increase of the distance between the first device and the adjacent component is reduced, so that the circuit board can keep a densely arranged layout structure, the component layout area of the circuit board is saved, and the space utilization rate of the circuit board is improved.

The invention provides a fabrication method of a grooved vertical double diffusion metal oxide semiconductor (VDMOS). The method comprises the following steps of depositing a hard mask layer on an N-type epitaxial layer; photoetching and etching an intermediate region in the hard mask layer to form a first groove window region; etching a lower-side region of the first groove window region, and forming a first groove in the N-type epitaxial layer; growing P-type epitaxy in an upper surface of the hard mask layer, the first groove window region and the first groove; removing the P-type epitaxy in the upper surface of the hard mask layer, the hard mask layer and the P-type epitaxy in the first groove window region by a chemical mechanical polishing process so as to form a P-type ion region in the first groove; respectively forming second grooves in partial regions at two sides of the P-type ion region in the N-type epitaxial layer; forming a grid oxide layer on an upper surface of the N-type epitaxial layer and a surface in the second groove; depositing a poly-silicon layer on the grid oxide layer in the second grooves; and forming a body region, a source region, a dielectric layer and a metal layer of the grooved VDMOS.

The invention discloses an anti-interference section laser scanning imaging device for rail line fault diagnosis, and relates to the technical field of rail line section laser scanning imaging, in particular to a foundation, a stock rail, a mounting sliding seat, an imager shell, a protective plate and a sealing plate. A stock rail is connected to the upper surface of the foundation through bolts,the installation sliding base covers the outer side of the upper portion of the stock rail, a matching groove is formed in the lower portion of the sliding groove, profiling cotton adheres to the inner side of the sliding groove, the imager shell is arranged on the outer side of one side of the upper edge of the installation sliding base, and the protection plates are installed on the two sides of the imager shell respectively. The sealing plate is arranged on one side of the bottom edge of the imager shell. The anti-interference section laser scanning imaging device for rail line fault diagnosis is easy to install, fix and disassemble, can realize sealing, can perform rapid scanning corresponding to the section of the rail, and cannot be damaged by clamping and pressing due to dead weight when being installed on the rail.

The invention discloses a machining device for an ultra-long and ultra-large steel reinforcement framework. The machining device comprises a front row of vertical rods and a rear row of vertical rodswhich are correspondingly arranged, wherein each row of vertical rods comprises a plurality of vertical rods; the upper part; the middle part and the bottom end of each row of vertical rods are connected with an upper horizontal connecting rod; a middle horizontal connecting rod and a lower horizontal connecting rod respectively; the upper horizontal connecting rods; the middle horizontal connecting rods and the lower horizontal connecting rods are fixedly connected with each vertical rod in the row of vertical rods; a plurality of distribution beams for uniformly distributing lifting force are arranged between the upper horizontal connecting rods of the front row of basic structures and the rear row of basic structures; and the distribution beams are placed at the tops of the upper horizontal connecting rods. The invention further discloses a corresponding hoisting device and a hoisting method. The hoisting method comprises the steps of manufacturing the steel reinforcement framework,mounting a template bracket, clearing a field, hoisting, lowering and guiding, putting into a groove and the like. With the adoption of the technical scheme, the working efficiency is improved, potential safety hazards are reduced, the ultra-long and ultra-large steel reinforcement framework is prevented from being locally or wholly deformed in a hoisting process, a very accurate mounting position is guaranteed and the hoisting quality is greatly improved.