44results about How to "Good structural compatibility" patented technology

The invention relates to an in-situ high-frequency fatigue material mechanical test platform under a scanning electron microscope based on a stretching/compressing mode and belongs to the field of machinery and electronics. The test platform comprises a precise loading unit, a precise motion conversion unit, a load/displacement signal acquisition and control unit, a high-frequency driving unit and a test piece clamping and connecting unit. The test platform provided by the invention has the advantages that the structure is compact, the test precision is high, the strain rate and the test frequency are controllable, an in-situ high-frequency test based on the stretching/compressing mode can be performed on a three-dimensional test piece aiming at centimeter-scale or above in characteristicdimension under the condition of observation of various imaging instruments, the on-line monitoring can be carried out on the microcosmic deformation, damage and breaking process of a material under a fatigue stress, and a novel test method for revealing microcosmic deformation behaviors and a damage system of the material is provided.

The invention relates to a material mechanical performance testing platform for a small-sized test sample under a stretching bending composite loading mode and belongs to the field of material mechanical performance test. The material mechanical performance testing platform consists of four parts, namely a driving module, a stretching module, a bending module and a control detection module and can be used for carrying out uniaxial stretching test on the test sample or material mechanical performance test on the test sample under the stretching bending composite loading mode. The motion between the stretching module and the bending module is connected through an electromagnetic clutch; and during test, the loading time sequence of the bending module relative to the stretching module is controlled by controlling the power on/off of the electromagnetic clutch and further pull combined loads with different ratios are acquired indirectly. The material mechanical performance testing platform disclosed by the invention is novel in concept and compact in integral structure. For researching the mechanical performance of the test sample under the action of a random composite load for stretch bending, the invention provides an effective research means and strong practicability is obtained.

The invention discloses an ultra-thin external rotor harmonic deceleration integrated machine comprising a motor and a harmonic reducer. The motor comprises a machine shell, a rear end cover, a rotorand a stator; the machine shell is of a multi-stage hollow barrel-shaped structure, the outer circumference of the rear end cover is fixed to a tail opening of the machine shell in a sealed manner, the shaft center of the rear end cover extends towards the interior of the machine shell to be provided with a hollow stator shaft, the rotor comprises a rotor shaft rotationally arranged in the machineshell and magnetic steel arranged on the outer circumference of the rotor shaft, and the stator is mounted on the outer circumference of the hollow stator shaft; and the harmonic reducer comprises awave generator connected to the first end of the rotor shaft in the axial direction, a flexible wheel, a rigid wheel and a crossed roller bearing, the outer circumference of the flexible wheel is fixed to the front end wall of the machine shell, the flexible wheel is arranged on the outer circumference of the wave generator, the rigid wheel is arranged on the outer circumference of the flexible wheel in a sleeving manner, and the crossed roller bearing is located between the rigid wheel and the machine shell in the axial direction. According to the ultra-thin external rotor harmonic deceleration integrated machine, the outer rotor structure is used on the basis of a frameless motor, the external rotor is directly connected with the reducer, and the advantages of being flat in structure, simple in installation, stable in output, high in structural compatibility and the like are achieved.

The invention relates to the field of engine oil monitoring, and in particular relates to an on-line monitoring and diagnosis method for a coaxial capacitive sensor and engine oil abrasive particles.The coaxial capacitive sensor comprises a sensor oil inlet and a sensor oil outlet. The sensor oil inlet and the sensor oil outlet are communicated with the inside coaxial capacitive sensor respectively. A central bearing, electrode supporting insulating substrates and electrode plates are arranged in the coaxial capacitive sensor. A number of electrode supporting insulating substrates and the central bearing divide the inside coaxial capacitive sensor into a number of detecting subspaces. The electrode plates are attached to the electrode supporting insulating substrates respectively. According to the invention, the coaxial capacitive sensor can be arranged inside an oil pipeline, which avoids the influence of environmental factors on the test result; the characteristics of oil abrasive particles can be efficiently detected on-line; online whole watershed monitoring and diagnosis of oil abrasive particles are realized; the severity of the wear condition of the friction pair surface ofthe rotating part of an engine is reflected; and safe and reliable operation of the engine is ensured.

The present invention relates to the field of medicine preparation, in the concrete, it relates to a show-released fibre preparation of water-soluble anti-cancer medicine for body implantation and its preparation method. It is characterized by that the fibre carrier is oil-soluble biological degradable material. and the medicine is water-soluble anticancer medicine, its medicine content is up to 15-50%.

The invention discloses an anti-reflux structure of a blood sampling needle. The anti-reflux structure is applicable for a hose type blood sampling needle and a straight type blood sampling needle, and comprises a blocking piece and a spring piece, which are arranged inside the inner cavity of a needle file, wherein the blocking piece can reciprocate inside the inner cavity of the needle file in the axial direction and is provided with a corresponding shape or end plug; the spring piece acts on the blocking piece to enable a blood channel of the inner cavity of the needle file to be switched between the closing and opening states. The anti-reflux structure can effectively avoid a sampled blood reflux phenomenon, effectively guards the safety of a human body, and meanwhile is simple in structure, reliable in operation, compatible with the existing blood sampling needle structure, low in change during the production procedure, simple in device structure, small in device number, low in modification cost, and higher in economic feasibility for production of billions of blood sampling needle products.

The invention discloses a multi-strategy rotating speed controllable servo motor. The servo motor comprises a casing, a high-speed shaft, and first and second rotors; the casing of a multi-stage hollow barrel-shaped structure is provided with a ring of first magnetic steel and a ring of second magnetic steel separately and successively in the inner peripheral wall; the high-speed shaft penetratesthe center of a motor shaft, a hollow tube for wiring is formed in the high-speed shaft, the front end of the high-speed shaft is led out of a opening of the casing, the leading-out end is connected with a harmonic decelerator, and the tail end of the high-speed shaft is led out of a tail opening of the casing; and the first and second rotors are arranged in the body of the high-speed shaft separately and successively and are both rotationally arranged in the casing, the first magnetic steel is distributed in the periphery of the first rotor, and the second magnetic steel is distributed in theperiphery of the second rotor. The rotating speed is controlled in high precision in a manner that excitation control is carried out on the double rotors respectively, and the servo motor also has advantages including flat structure, stable output and high structure compatibility.

The invention, which relates to the technical field of display devices, specifically discloses a light guiding structure, a lateral entrance type backlight module, and a display device. The light guiding structure comprises a light guiding layer and a reflective layer that are integrally bonded; a light condensation structure for collecting emitted light is arranged at a light emitting surface ofthe light guiding layer; a reflective layer is disposed on the back surface of the light guiding layer; and scattering particles are arranged on the light reflective surface of the reflective layer and are used for scattering light entering the light reflective surface. The light guiding layer and the reflective layer are made of PET. With the light guiding structure, the light energy loss can bereduced effectively and the utilization of light energy can be improved. The integrated design of the reflection, light guiding and brightening is realized; a reflection sheet, a light guide plate, aprism sheet, and a diffusion sheet in the conventional lateral entrance type backlight module can be replaced; the longitudinal structure of the backlight module can be simplified; the cost of the photovoltaic module can be lowered; and the light energy utilization and reliability can be improved. Since the light guiding layer and the reflective layer are made of PET, the light guiding structure enables the cost to be lowered by being compared with the traditional light guiding plate. Because of the flexible material, the structural compatibility is improved and the project development is promoted.

The invention discloses a parallel type all-in-line machine for robot joints. The machine comprises a connecting base which is of a hollow structure, a servo motor and a speed reducer; the servo motoris fixed to a first end of the connecting base, a motor shaft of the servo motor extends into the connecting base, and a first synchronous pulley is arranged at an extension end of the motor shaft; the speed reducer is fixed to a second end of the connecting base, a high speed shaft of the speed reducer extends into the connecting base, and a second synchronous pulley is arranged at an extensionend of the high speed shaft; the first synchronous pulley and the second synchronous pulley are linked through a first synchronous belt. A servo motor main shaft and a harmonic speed reducer rotatingmain shaft are arranged in parallel, the coverall length of the whole mechanism in the axial direction is greatly reduced, the machine is applicable to the joins of a service robot, and the technicalproblem that the length of the servo speed reduction all-in-one machine in the axial direction cannot be further reduced is solved.

The invention belongs to manipulators and specifically provides a quickly disassembled and assembled four-axis manipulator. The quickly disassembled and assembled four-axis manipulator comprises a shoulder joint servo motor I and a fixed base. The fixed base is connected with the shoulder joint servo motor I through screws. The shoulder joint servo motor I is connected with a harmonic reducer through screws. The quickly disassembled and assembled four-axis manipulator integrates shoulder joints with two degrees of freedom, an elbow joint with one degree of freedom and a wrist joint with one degree of freedom in a modular mode. One shoulder joint is composed of a customized harmonic reducer, a brake servo motor, a servo driver and the like. Under the condition of meeting the high performance and high precision, the intelligent joints are faster and more convenient to dismantle, and the other shoulder joint is directly driven by the corresponding servo motor. The quickly disassembled andassembled four-axis manipulator can be fast and convenient to disassemble and assemble on the basis of realizing four-axis linkage control of a mechanical arm and is particularly suitable for the robot teaching industry. The quickly disassembled and assembled four-axis manipulator as a robot in the teaching industry has the characteristics of being simple in installation, stable in output, high in structure compatibility and the like.

The invention discloses a folding heat exchanger and an integral fresh air conditioner thereof. The integral fresh air conditioner comprises the folding heat exchanger, an upper cover box, a lower cover box, a sealing plate A and a sealing plate B of the folding heat exchanger, a box body of the air conditioner, an indoor unit and an outdoor unit of the air conditioner and the like, and a corrugated heat exchange core body formed by continuously pressing thin plates and panels around the corrugated heat exchange core body form the flat folding heat exchanger. Air openings are formed in the two ends, a front panel and a rear panel of the folding heat exchanger, the upper cover box and the lower cover box cover the air openings in the top and the bottom of the folding heat exchanger correspondingly and are vertically arranged in the box body, the sealing plate A and the sealing plate B seal gaps between the upper cover box and the box body and between the lower cover box and the box body, air holes communicating with the outside of the box body are formed in the proper positions, close to the box body, of the upper cover box and the lower cover box, and the indoor unit arranged in a front chamber of the box body and the outdoor unit arranged in a rear chamber of the box body are connected into a whole through a connecting pipe. The folding heat exchanger is small in size, light in weight, high in heat exchange efficiency, high in cost performance, safe, reliable and convenient to install and maintain.

The invention relates to a signal lightning protection device. The signal lightning protection device comprises an interface. The interface is provided with a remote signaling input end and a remote signaling output end. The device further comprises a sensing coil and an alarm circuit. One end of the sensing coil is connected with the remote signaling input end, and the other end of the sensing coil is connected with one end of the alarm circuit. The other end of the alarm circuit is connected with the remote signaling output end. The alarm circuit comprises a first circuit and a second circuit connected in parallel with the first circuit. At a normal working state, the first circuit is switched on and the second circuit is switched off. At a degradation state, the first circuit is switched off and the second circuit is at a high-impedance state. According to the invention, through arrangement of the alarm circuit, a remote signaling degradation real-time alarm function is realized, the wiring is simple, power supply by use of a power source is unnecessary, the safety and the reliability are improved, the volume is small, and the structural compatibility is good.

The invention discloses a display screen which comprises a piece of display glass, a flexible flat cable connected with the display glass and integrally provided with a video decoding drive circuit, and an output plug at the tail part of the flexible flat cable. According to the scheme provided by the invention, the video decoding drive circuit is integrated on the flexible flat cable. Compared with a circuit board of a traditional display screen, the flexible flat cable is much smaller in size and thickness, so that the display screen has better structural compatibility; and besides, as for the manufacturing process, the flexible flat cable has less discrete components and is in integral compression joint with a display glass, and debugging is avoided, so that the display screen has lower manufacturing cost. Therefore, the display screen has the advantages of better structural mounting performance, favorable anti-interference performance, low construction cost, and the like.

The invention discloses a storage unit based on a 7T1C structure, an operation method of the storage unit and a memory. The storage unit comprises a 6T structure and a 1T1C structure, and the 6T structure is used for inputting and storing data 1 or 0; and the 1T1C structure is connected with the first storage node of the 6T structure and is used for storing the data 1 or 0 when the 6T structure ispowered off and recovering the data 1 or 0 to the 6T structure when the 6T structure is powered on. By means of the 1T1C structure, under the condition that a read-write circuit of an SRAM in the prior art is not changed, good structural compatibility is kept through simple circuit design, leakage current is prevented, meanwhile, increase of the area size of a storage unit is avoided, the operation speed is higher, and static power consumption is lower.

The invention provides a structure and a method for improving MIMO system antenna isolation. The structure comprises an isolation unit and two etching grooves, wherein the isolation unit is arranged on a metal antenna bottom plate and located between two antennas, and the distance between the two antennas is larger than half of the working wavelength of the antennas; the two etching grooves are located in the two sides of the isolation unit; and the isolation unit is of a double-arm inverted-L-shaped structure composed of two L-shaped arms. The structure and the method can be applied to improvement of the isolation degree of the existing indoor and outdoor small base station omnidirectional antenna, have the replicability and are simple and rapid in design, the isolation is obviously improved, and compared with neutral line decoupling and resonator decoupling, additional matching design does not need to be carried out on an input port, the design flexibility is higher, and compared with metamaterial decoupling, the design is simpler, the cost is lower, and the structural compatibility is higher.