2194results about How to "No wear" patented technology

A variable frequency magnetic suspension compressional expansion assembly comprises a compressor, an evaporator and an expansion machine that are connected. A magnetic suspension bearing centrifugal compressor is directly connected with a radial flow type expansion machine via a shaft, the shaft is suspended on a left radial magnetic suspension bearing, a right radial magnetic suspension bearing and an axial magnetic suspension bearing, a variable frequency motor is provided between the left radial magnetic suspension bearing and the right radial magnetic suspension bearing and used for driving the centrifugal compressor; and the radial flow type expansion machine comprises an air inlet chamber and an air outlet pipe, nozzles and impellers are provided between the air inlet chamber and air outlet pipe and passed through the air inlet chamber and air outlet pipe, and the impellers are fixedly connected on the shaft. The power from expansion is transmitted to the compressor, and the refrigerant after expansion is entered into the evaporator to carry out evaporative cooling; after being evaporated in the evaporator, the refrigerant is sucked by the compressor to carry out circulatory flow; and the magnetic suspension bearings assure that the shaft does not contact with the bearings when the assembly operates, so that lubrication via lubricating oil is not needed.

A gate valve (1) is constructed for the simultaneous blocking or clearing of two rectangular passage openings (8,9) of two chamber walls (4,5) that are provided between two vacuum chambers (1,3) and aligned with one another. To this end, it has two valve plates (20, 21), which are a component of a slider (15), which is situated so that it can move with play from a position clearing the passage openings (8,9) to a position which closes the passage openings (8,9). To move the valve plates (20,21) to the closing setting against the passage openings (8,9) on the slider (15), at least one lifting element (24), which is acted on by pressure, is provided.

Disclosed herein are two separate processes that do not require a propellant and do not produce an equal and opposite reaction against any external form of matter in the Local Inertial Reference Frame and do not violate Newton's Laws in the Universal Reference Frame. The first process produces horizontal motion, relies on the earth's gravitational field as an external force, and has been successfully tested. The second process produces vertical motion and relies only on the aether. It has been successfully tested considering the effect of the earth's gravity. Due to the law of conservation of angular momentum, the first process is considered by some to not be possible, but with the proper use of an external field (for example, gravity) and the phenomenon of precession, it is clearly possible. A clear distinction is made between a simple rotor and a gyroscope which is a far more complex device.

The invention discloses ultraviolet light curing vacuum plating primer and finish, wherein primer is formed by random proportion of double function aliphatic polyurethane acrylic ester, epoxy acrylic ester, trifunctional acrylic ester, double function acrylic ester, adhesion promoting resin, photo initiator, diluent, and auxiliary agent, finish is formed by random proportion of high function aliphatic polyurethane acrylic ester, large molecular resin, double functional aliphatic polyurethane acrylic ester, trifunctional aliphatic polyurethane acrylic ester, adhesion promoting resin, photo initiator, diluent, and auxiliary agent. The surface of substrate material is conducted with painting treatment of primer, which increases the plainness and adhesion fastness of the vacuum plating film, and vacuum plating film is conducted with the surface painting treatment of UV vacuum plating finish, which can prevent oxidization of metal film layer and endows vacuum plating film with excellent surface abrasion resistance and extreme wonderful hand feeling.

The double pendulum milling head driven by the AC permanent syntactic rotor torque motor having a cross hollow shaft, whose both ends fixed on the rotor of the horizontal torque motor at both ends of the A shaft. Acting as an integral, they are fixed on the rotor of the vertical torque motor of C shaft. In this way, vertical motor driving the milling head to rotate around C shaft, and A shaft horizontal motor driving the pendulum of milling head around A shaft. It complete the complex machining of the working piece through compound motion in two directions matching the high speed revolution of the shaft itself. It is compact in structure, simple of drive, good in rigidity, smaller in mechanical components quantity, higher reaction sensitivity, free from wear and reverse gap, being able to machining for a five-face body with high precision.

The invention provides ultraviolet-cured paint, which comprises priming paint and finishing paint, wherein the priming paint comprises the following components in parts by weight: 10-20 parts of bifunctional aliphatic polyurethane acrylic resin, 15-25 parts of bifunctional epoxy acrylic resin, 1-6 parts of adhesion accelerating resin, 2-5 parts of photo initiator, 25-60 parts of diluent and 0.01-0.5 part of aid; and the finishing paint comprises the following components in parts by weight: 1-40 parts of high functional aliphatic polyurethane acrylic resin, 5-15 parts of bifunctional aliphatic polyurethane acrylic resin, 1-5 parts of adhesion accelerator, 1-5 parts of photo initiator, 20-60 parts of diluent and 0.2-2 parts of aid. A sample surface coated with the ultraviolet-cured paint provided by the invention is free from wear after more than 1,000 times of wearing tests in RCA wear resistance testing. After over 4 hours of shock and wear resistance testing, the wear area of the sample surface is smaller than 1 mm<2> or the diameter of a worn region is smaller than 1 mm.

The invention relates to an air intake manifold with an integrated air track, which comprises an air throttle (1) of an air inlet of an engine, a resonant cavity (2) of the air intake manifold, a plurality of branch pipes (3) of the air intake manifold, and a connecting flange (4), wherein the air throttle (1) at the upper end of each branch pipe (3) of the air intake manifold is communicated with the resonant cavity (2) of the air intake manifold; and air outlets at the lower parts of the branch pipes (3) of the air intake manifold are respectively connected with cylinder covers through the connecting flange (4). The air intake manifold is characterized in that the air intake manifold further comprises the air track (5) and a plurality of air track connecting branch pipes (6), wherein the air track connecting branch pipes (6) are corresponding to the branch pipes (3) of the air intake manifold one to one; and the air track (5) is communicated with the lower end of each branch pipe (3) of the air intake manifold through the corresponding air track connecting branch pipe (6). When the air intake manifold is fully loaded, resonance effects achieved at low rotating speeds and trough rotating speeds can be optimized, so that the air intake quantity is increased; when the air intake manifold is partially loaded, pumping loss of the engine is decreased, the fuel consumption rate is reduced, and the requirements for buses in different working conditions can be satisfied.

The invention provides a closed fluid static pressure/ dynamic static pressure revolving worktable with high precision and rigidity, and relates to the field of automatic equipment of precision machinery. A plurality of axial bearings and radial bearings arranged along the axial direction are fixed by a plurality of slewing rings and bearing guide rails; the revolving worktable is provided with a balanced bearing to balance; kinematic pairs of a plurality of bearings rotate synchronously and are connected; fixed pairs of the bearings are connected through a base of the worktable; and sliding pairs of the radial bearings and bearing pairs of the axial bearings move rigidly, integrally and synchronously; and a relatively still sliding surface of the sliding pair of each bearing is provided with an oil chamber. Under the conditions that fluid pressure of the revolving worktable is same and the volume is equal, the axial rigidity, the radial rigidity and the bearing capacity are multiply improved, and the improved multiple is in direct proportion to the number of the bearings. The revolving worktable has the advantages of convenient design, simple manufacture, low cost, high precision and no abrasion. The revolving worktable is a key part of a high-precision metal working machinery, in particular to a functional part of large and oversize heavy equipment by using the key technology, and has more remarkable advantages in manufacturing equipment in the fields of navigation, astronavigation, large aircraft, and the like.

The invention is a fire monitoring method and device based on all- direction computer vision, mainly making field monitoring by all-direction computer vision sensor, inputting the taken continuous all-direction image into the computer for continuous image processing and analysis, and obtaining a synthetic result by simple fire mode classification, flame area change characteristic judgment, flame shape change characteristic judgment, flame color characteristic judgment, flame flickering rule characteristic judgment, whole flame motion characteristic judgment and fire intensity characteristic judgment, making different processings according to the calculation and synthetic judgment quantized values to reduce false alarm rate of fire. And the invention provides a truly original, quicker, accurater, more reliable multiparameter intelligent fire monitoring method and device.

The invention provides a preparation method of high-purity micro-fine low-oxygen titanium powder, which belongs to the technical field of powder preparation in the powder metallurgy process. The preparation method is characterized by combining hydrogenation and dehydrogenation with a jet milling process, firstly carrying out hydrogenation treatment on a titanium sponge to prepare titanium hydride powder, then utilizing a jet mill to break the titanium hydride, then carrying out vacuum dehydrogenation, and finally utilizing the jet mill to carry out breaking gradation and vacuum package and obtaining a titanium powder product. Compared with the traditional ball milling process, the jet milling process causes no pollution, and iron impurities caused by collision of steel balls in the ball milling process can be avoided; due to jet milling and high-vacuum dehydrogenation treatment, the content of oxygen can be controlled to be lowest, and the powder taking and packaging operations are respectively carried out in a glove box, so that the powder and the air are isolated in the whole process, and further, the prepared high-purity micro-fine low-oxygen titanium powder is prepared.

The invention provides an electric car power battery thermal management system. The electric car power battery thermal management system comprises a thermoelectric plate heat exchanger, a radiator, a fan, a battery pack, a kettle, a first circulating water pump, a second circulating water pump and connecting pipelines. The thermoelectric plate heat exchanger comprises a first fluid channel, a second fluid channel, a first fluid inlet, a second fluid inlet, a first fluid outlet, a second fluid outlet, a thermoelectric module, a positive electrode and a negative electrode. One closed and independent fluid circulating system is formed by the thermoelectric plate heat exchanger, the battery pack, the kettle, the first circulating water pump and one connecting pipeline. The other closed and independent fluid circulating system is formed by the thermoelectric plate heat exchanger, the radiator, the fan, the second circulating water pump and the other connecting pipeline. The two closed and independent fluid circulating systems can circulate two kinds of fluid at different temperatures to cool or heat a power battery. The thermoelectric plate heat exchanger is adopted for heating and refrigerating the battery pack, a heating mode or a refrigeration mode can be switched only by switching the positive electrode and the negative electrode of a power source of the thermoelectric plate heat exchanger, and the electric car power battery thermal management system is of a practical and reliable heat management structure.

The invention relates to a rotating and swinging joint module of a robot of single degree of freedom. The joint module is provided with a rotation degree of freedom, and the joint spindle thereof is vertical to the connection axis of the module to form swinging movement. The joint module is matched with a corresponding control system to realize movement or moment control, and joint parts and limiting position are detected by a Hall switch. The rotating and swinging joint module mainly comprises a servo motor and a photoelectric encoder assembly, a disk-type harmonic wave reducer assembly, a harmonic wave reducer output shaft, a motor base, a joint base, a bearing, a shaft cover, an end cover, a pair of bevel gears, a joint spindle and the like, wherein a motor shaft is connected with the wave generator of the harmonic wave reducer through the shaft sleeve, and the output rigid wheel of the harmonic wave reducer is fixedly connected with an output disk; a pair of bevel gears is arranged between the output disk and the joint spindle; the joint spindle is connected with a joint oscillating piece by a trapezoidal key to finally realize movement and power transmission. The module has compact structure and is convenient to connect with other modules or parts and can be combined and built into various robots or other electromechanical systems.

The present invention discloses an improved rotary forced-air cooler, which comprises a double layer trolley, a supporting beam structure, a material blocking proof air duct sealing plate arranged at the connecting part of the double layer trolley and an air supplying system, a double layer trolley unit static seal device and an air duct device. The supplying system structure is based on a rectangular beam, a triangle beam is arranged on the rectangular beam, and a plurality of ventilation channels are arranged on the bevel edge steel plates at the both waists; an air duct pipe is arranged on the air vent of the material blocking proof air duct sealing plate, an inclined plate inclining upwards from the air vent at the bottom part of the air duct pipe has a transition to a horizontal plate, a stopping ventilation fence is added to the air duct pipe at the side of the trolley; two rubber sealing parts with extended bottom edges are arranged at the outer sides of the lower parts of inner and outer sealing plates of the double layer trolley unit static seal device, an ash baffle plate which can move up and down is hung at the inner side; an air water sealing wave subduing device adopting a damping plate is arranged on the air duct device. The present invention further improves the sealing performance of the equipment, and reduces energy consumption and pollution.

The invention discloses an organic hydrophilic coating, which comprises water soluble hydrophilic acrylic resin, water soluble curing agent, leveling agent, and latent solvent. The hydrophilic coating can be packed singly to be applied to aluminum foil with antisepsis first coat coated in advance, and is provided with wide overcoatability with the first coat; abrasion to a mould coated with compound containing inorganic silicon and a mould for processing coating aluminum foil can not be caused.

The invention discloses a micro-disturbance-torque environment simulation device suitable for a spacecraft simulated test. The micro-disturbance-torque environment simulation device comprises a base, an air floating ball bearing pair, an adapter ring and an instrument platform. The air floating ball bearing pair comprises an air floating ball shaft, a public buffering cavity, single-row annular gap throttle holes, an air discharging hole, annular gap throttle devices and an air floating ball bearing, wherein the base is installed on a foundation, the lower end of the air floating ball bearing is installed on the base, the air floating ball shaft can be suspended on the air floating ball bearing, the air floating ball shaft can have a three-dimensional rotary freedom degree, the adapter ring is arranged at the upper end of the air floating ball shaft, and the adapter ring is fixedly connected with the instrument platform. The micro-disturbance-torque environment simulation device is simple in design principle, safe and reliable, and meanwhile has the advantages of an ordinary air bearing.

The invention relates to a float type level gauge for on-site indication, which comprises a float, a graduated scale and a noctilucence wheel, and is characterized by further comprising a conducting or magnetic conducting guide rail, wherein the noctilucence wheel comprises an insulating box, a light source, two longitudinally arranged magnetic shafts or metal shafts, and two conducting wires for supplying power to the light source; for a magnetic float type level gauge, the noctilucence wheel also comprises a steel magnet; under the magnetic action, the magnetic shafts or the metal shafts, along with upward and downward movements of the float, move upwards and downwards along the guide rail so as to indicate the liquid level on-site accurately in time; or a resistance wire is enwound on the guide rail, and the resistance value of a conducting loop comprising the guide rail, the magnetic shafts or the metal shafts, the conducting wire, the light source and the like is measured to acquire a corresponding liquid level value so as to achieve the continuous long-distance transmission of liquid level data. The float type level gauge can also comprise a pulley wheel, a counterbalance, a connecting rope or a connecting belt to balance the noctilucence wheel. The float type level gauge has the significant characteristics of simple structure, clear and obvious on-site indication, flexible and accurate measurement and continuous long-distance signals.

The invention discloses a solar thermal power generation system by thermoelectric conversion, comprising a sunlight-concentrating and receiving module, a solar tracking module, a photothermal-conversion module for absorbing sunlight then transforming sunlight into thermal energy and a combination of semiconductor thermoelectric module, the combination-type cooling module is under the semiconductor thermoelectric module. In the invention, TE module can directly convert solar thermal and waste heat to electricity without heat transfer medium, heat storage tank, turbine, and mechanical moving part, thus realizing small scale, compact system with high efficiency; Due to the adopting of low concentrating lens with tracking system and compound waste heat supplying module, thus reducing floor area and effectively improving temperature difference and power generating efficiency of the overall system. In comparison with that of traditional solar thermal power generation system, the new system kept the advantages, including: low investment and low maintenance cost. In comparison with that of solar cell power generation system, the system has the advantages: large power in small area and possible in stable output; furthermore a heating source apart from solar energy is introduced to guarantee the stable current supply.

The present invention discloses a laser processing head and a multi-light source, multi-function and multi-axis processing apparatus comprising the same. The laser processing head includes a shell, an optical path system, a locating conical disk-shaped connecting mechanism, a laser range finder, a motor driving mechanism and a dust collection protection cover. The laser processing head has the advantages of a plurality of processing modes, flexibility in laser selection and easiness in replacement. The multi-light source, multi-function and multi-axis processing apparatus includes an apparatus control and operation system platform, a multi-axis linkage numerically-controlled machine tool and the laser processing head; the laser processing head is fixed on a high-precision multi-axis linkage machine tool through a blade handle type positioning cone device; and large-breadth and cross-scale laser fine processing only requires the switching of a laser light source, a laser optical path and the laser processing head, so that at least three kinds of large complex component fine surface processing application can be realized. The multi-light source, multi-function and multi-axis processing apparatus is especially for the aerospace field. The laser processing head and the multi-light source, multi-function and multi-axis processing apparatus comprising the same of the invention have the advantages of low manufacturing cost, wide application range, convenience in mass production and the like.

The invention discloses a man-machine interface technique for a fingerprint locker and a method for managing the same. A system adopts the combination of the fingerprint identification technique in the biometric identification technology and the man-machine interface technique to complete the work for safe temporary storage of articles of people necessary in a public place. The technique is characterized in that: only 2 to 3 keys and display contents combining patterns and characters and displayed by an LCD form the interactive man-machine interface, and an intuition guide based mode is adopted to guide a user for routine access operation; and by the same man-machine interface, the equipment managing staff can quite conveniently complete the back-stage management operations of the equipment, such as time setting and correction, language setting of a user interface, fee rate setting, money withdrawing operation, locker opening treatment in an abnormal state, safety audit and the like, under a highly-safe safety restriction mechanism. The technique has the advantages of simple user interface and easy use of the same man-machine interface, easy management of the management interface,comprehensive management functions, and sound security mechanism.

The invention discloses a hinge device which has the functions of door stop, automatic door closing, cushioning for door closing and the like. A cam piston, which divides the space in an upper shell into an upper independent compartment and a lower independent compartment, is arranged in the upper shell of the hinge device; and the cam piston moves up and down when the door sheet is opened and closed, thereby driving hydraulic oil in the upper compartment and the lower compartment to flow back and forth in the two compartments. When the door is automatically closed, the cam piston moves down,the hydraulic oil should flow into the upper compartment from the lower compartment via a cushion valve; the action of the resistance of the cushion valve has the cushioning effect on closing door, thereby avoiding overhigh closing speed, lightening the violent impact between a door sheet and a door frame while closing the door, reducing the noise while closing the door, and prolonging the service lives of the door sheet and the door frame. In addition, a hydraulic mechanism does not abrade a mechanical cushioning mechanism, thus the invention has the advantages of stable cushioning effect and long service life.