82results about How to "Avoid Oil Leakage Problems" patented technology

The invention relates to a pouring-type high-energy insensitive explosive and a preparation method thereof. In order to solve the problem of a low energy level of traditional butylated hydroxy castingPBX explosives, an energy-containing adhesive and an energy-containing plasticizer are introduced as a binder system, and through addition of high-energy explosives and metal fuel components, the prepared pouring-type PBX explosive has high energy characteristics; the explosive formula has a density greater than 1.85 g/cm<3>, the detonation velocity is greater than 7800 m/s, and the explosive power is that of 1.9 times or above the TNT equivalent; and at the same time, the explosive formula has good low-vulnerability, and especially has mild reactions in slow-speed burning tests, and the reaction level does not exceed a detonation level.

According to the invention, sulfate softwood pulp, sulfate hardwood pulp and domestic bleached or natural-color sterile bamboo pulp are used as raw materials, nano-crystalline cellulose is added intopaper pulp, nano-crystalline cellulose is added into a surface sizing agent, and nano-crystalline cellulose is added into a surface coating solution, so that the strength of the paper is remarkably improved, the use experience of the paper is effectively improved, and the bad experience that food packaging paper such as hamburgers is broken, stuffing leaks out and oil seeps in the use process is prevented. Besides, through repulping, pulping and addition of various chemical additives meeting the GB9685-2016 standard, refined control over the technological process is improved, the high-temperature-resistant, oil-proof, anti-sticking and low-weight food packaging paper is prepared, traditional waxing paper and PE-coated paper materials can be replaced, and it is guaranteed that food making contact with the packaging paper is healthier, safer and more environmentally friendly.

The invention belongs to the field of automobile equipment accessories and particularly relates to an automobile composite pipe provided with a fluorine-containing outer layer and a silicon-containing inner layer. The automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer comprises an inner fluorine rubber layer, a reinforcing layer and an outer silica gel layer. The inner wall of the automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer is the inner fluorine rubber layer, the reinforcing layer is wrapped around the outer wall of the inner fluorine rubber layer, and the outer silica gel layer is wrapped around the outer wall of the reinforcing layer. According to the automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer, the fluorine rubber is resistant to high temperature, good in gas tightness, resistant to oil and capable of effectively protecting a rubber pipe against oil seepage and water seepage, the reliability of a gas inlet rubber pipe and a gas outlet rubber pipe for an automobile can be greatly improved, and the fault rate of the automobile during running can be lowered. The wall thickness consistency and stability of the product are guaranteed, and the adhesion performance between the silica gel layer and the reinforcing layer is improved. Due to the design of the reinforcing layer, the automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer has good physical and mechanical properties, oil resistance and acid-base corrosion resistance and can be applied to severe environments, and the service life of the rubber pipe is effectively prolonged.

The invention discloses a diesel engine oil pipe seal gasket with high thermal stability. The diesel engine oil pipe seal gasket comprises the following raw materials in parts by weight: 90 to 100 parts of a main material, 4 to 15 parts of a kaolin compound, 8 to 12 parts of coal gangue, 4 to 10 parts of glass fiber, 1 to 2 parts of a cross-linking agent, 1 to 2 parts of tricresyl phosphate, 1 to2 parts of epoxidized fatty acid methyl ester, 0.2 to 0.8 part of chlorinated paraffin, 0.4 o 1.2 parts of disproportionated rosin, 1 to 2 parts of an anti-aging agent SP and 1 to 2 parts of an anti-aging agent AW, wherein the kaolin compound is prepared by adopting the following process: mixing kaolin, sepiolite powder, bentonite, tetrabutyl titanate and water under stirring, adding cocamidopropyl betaine and sodium hydroxide, carrying out uniform mixing, subjecting an obtained mixture to ball milling, filtering, washing and drying so as to obtain the kaolin compound. The diesel engine oil pipe seal gasket provided by the invention has the advantages of excellent thermal stability, good impact-resistant effect, good mechanical properties and excellent seal effect, can effectively preventoil impregnation, greatly improves the work reliability of a diesel engine oil pipe, and facilitates application and popularization.

The invention relates to a hub reduction gear combined sealing structure, and belongs to the technical field of vehicle transmission. The sealing structure comprises a static ring and a movable ring,wherein the static ring is fixed to a frame; the movable ring is opposite to the static ring, and is fixedly connected to a torsion shaft; the end face of the static ring is provided with at least three rings from outside to inside along the radial direction; the outer circle of the ring on the innermost layer is provided with a clamping groove embedded with a packing; the inner circle of the ringon the innermost layer is in tight fit with a throttling ring and a framework oil seal; the throttling ring is provided with a group of radial extension combs which are arranged at intervals along the axial direction; the end face of the movable ring is provided with a circular lug and a lower edge inner ring which are embedded between adjacent rings to construct a radial labyrinth seal from outside to inside along the radial direction; the inner circumferential surface, opposite to the clamping groove, of the circular lug is in contact with the packing to construct a packing seal; the outercircle of the lower edge inner ring is in contact with the framework oil seal to seal the framework oil seal; and a throttling ring seal is formed at a position opposite to the throttling ring. The quadruple sealing structures perform own functions. Through organic combination, the lip edge of the framework oil seal is always in a stable and reliable sealing state, so that the fatigue failure is avoided effectively, and oil leakage after long-term use is avoided.

The invention relates to an actuating cam type lubricating self-cleaning mechanism. A motor is connected to a large arm in a static sealing mode, an output end of the motor is connected with one end of an output shaft of a speed reducer through an input gear shaft of the speed reducer, one end of a shell of the speed reducer is arranged in the large arm in a static sealing mode, the other end of the shell of the speed reducer is connected with the output shaft of the speed reducer in a sealing rotation mode, and the other end of the output shaft of the speed reducer is connected with a small arm in a in static sealing mode; the two ends of an inertia double-head piston are connected with a large cylinder barrel and a small cylinder barrel in a sealing mode to form sliding pairs correspondingly; and a speed reducer inner cavity filled with lubricating grease is arranged in the large arm, the speed reducer inner cavity communicates with the interior of the small cylinder barrel through an oil way A, the interior of the large cylinder barrel communicates with the speed reducer inner cavity through an oil way B, an oil outlet one-way valve allowing oil to flow to the small cylinder barrel only is arranged in the oil way A, an oil return one-way valve allowing oil to flow to the speed reducer inner cavity only is arranged in the oil way B, and a filter element is arranged in the part, close to the large cylinder barrel, of the oil way B. According to the mechanism, the internal pressure of a robot joint can be stabilized, oil leakage is prevented, the energy efficiency is improved, and the energy-saving and environment-friendly effects are better.

The invention provides a quick connector of a crankcase ventilation system. The quick connector comprises an external connecting pipe, an electric switch and a mandrel; the external connecting pipe isformed in a pipe shape; a pipeline passage is formed in the external connecting pipe; one end of the external connecting pipe is connected to an air inlet manifold, and the other end of the externalconnecting pipe is connected to an air filter rubber pipe; a through hole communicating with the pipeline passage is formed in the side wall of the external connecting pipe; the electric switch is arranged outside the external connecting pipe and is adjacent to the through hole; the mandrel capable of moving between a first position and a second position in the axial direction of the through holeis arranged on the external connecting pipe; when the mandrel is located at the first position, at least a part of the mandrel extends into the pipeline passage, the mandrel and the electrical switchare disconnected, and when the mandrel is located at the second position, the mandrel and the electric switch are matched to form a closed electric circuit. The quick connector of the crankcase ventilation system has the advantages that when the air inlet manifold and the air filter rubber pipe are in insertion connection, the mandrel can touch the electric switch and form the closed electric circuit, and therefore normal operation of an engine can be ensured.

The invention provides an improved mechanical turbocharger by which the air pressure in a gear box can be always consistent with the ambient pressure, the temperature in the gear box can be reduced, the lubrication performance of lubricating oil can be ensured, and the occurrence of an oil penetration or leakage phenomenon can be avoided. The improved mechanical turbocharger comprises a gear box, and the gear box is arranged in a shell of the turbocharger; and the improved mechanical turbocharger is characterized in that the shell of the turbocharger is provided with a screwed hole, the screwed hole is a through hole, the inside of the screwed hole is provided with a hydraulic pipe joint, the hydraulic pipe joint is connected with a hydraulic pipe, and the hydraulic pipe is connected with a breathing apparatus.

The invention relates to a passive pendulum bob type lubricating self-cleaning mechanism. The passive pendulum bob type lubricating self-cleaning mechanism is characterized in that a motor is fixedlyconnected to a big arm in a static sealing manner, the output end of the mechanism is connected with one end of a speed reducer output shaft through a speed reducer input gear shaft, one end of a speed reducer shell is arranged in the big arm in a static sealing mode, the other end of the speed reducer shell is in sealing rotation connection with the speed reducer output shaft, the other end of the speed reducer output shaft is in static sealing connection with a small arm, the two ends of a double-head piston rod are correspondingly connected with a large cylinder barrel and a small cylinderbarrel to form a movable pair and are in sealed connection, a pendulum bob is hinged to the big arm and is connected with the double-head piston rod through a connecting rod, a speed reducer inner cavity is arranged in the big arm, the speed reducer inner cavity communicates with the interior of the small cylinder barrel through an oil way A, the interior of the large cylinder barrel communicateswith the speed reducer inner cavity through an oil way B, an oil outlet one-way valve is arranged in the oil way A, an oil return one-way valve is arranged in the oil way B, and a filter element is arranged in the oil way B close to the large cylinder barrel. According to the passive pendulum bob type lubricating self-cleaning mechanism, the internal pressure of a joint of a robot can be stabilized, oil leakage is prevented, the energy efficiency is reduced, and the energy-saving and environment-friendly effects are better.

The invention relates to an internal circulation type lubricating self-cleaning mechanism. A motor is connected to a large arm in a static sealing manner, the output end is connected with one end of an output shaft of a speed reducer through an input gear shaft of the speed reducer, one end of a shell of the speed reducer is fixedly arranged in the large arm in a static sealing mode, the other endof the shell of the speed reducer is in sealing rotation connection with the output shaft of the speed reducer, and the other end of the output shaft of the speed reducer is in static sealing connection with a small arm; an inner cavity of the speed reducer is arranged in the large arm, the inner cavity of the speed reducer is in communication with one end of an elastic mechanism through an oil way A, the other end of the elastic mechanism is in communication with the inner cavity of the speed reducer through an oil way B, an oil outlet one-way valve which can only flow to the elastic mechanism is arranged in the oil way A, and an oil return one-way valve which can only flow to the inner cavity of the speed reducer is arranged in the oil way B; and close to the other end of the elastic mechanism, of the oil way B is provided with a filter element. According to the internal circulation type lubricating self-cleaning mechanism, the internal pressure of a robot joint can be stabilized, oil seepage is prevented, the joint rotation resistance of the robot is small, the energy efficiency is reduced, and the energy-saving and environment-friendly effects are better and remarkable.

The invention discloses water-based ink for realizing a matte effect of 3D glass as well as a preparation method and an application of the water-based ink, the product is coated on a 2D glass substrate and comprises the following components in parts by weight: 20-35 parts of water-soluble resin, 5-15 parts of glass powder with the melting range of 300-500 DEG C, 15-35 parts of glass powder with the melting range of 500-700 DEG C, 10-25 parts of nanoscale spherical silicon, 5-20 parts of water and 0.01-1.0 part of auxiliaries. According to the water-based ink for achieving the 3D glass matte effect, the water-soluble resin serves as a main carrier of the glass powder with the melting range of 300-500 DEG C, the glass powder with the melting range of 500-700 DEG C and the nanoscale sphericalsilicon, fluidity and leveling property during printing are provided, and the water-soluble resin has good wrapping wettability on the glass powder with different melting ranges and the nanoscale spherical silicon; the adhesive force to a 2D glass substrate is good, and a coating is formed on the surface of the 2D glass after baking, so that the glass powder and the nanoscale spherical silicon with different melting ranges are uniformly and densely distributed on the 2D glass substrate.

The invention provides a hydraulic-type clutch and brake control system. The hydraulic-type clutch and brake control system comprises a shifting fork, a clutch pedal assembly and a brake pedal assembly, wherein the shifting fork is installed on a gearbox; and the clutch pedal assembly and the brake pedal assembly are installed on a front plate assembly in a coaxial rotating mode. The clutch pedalassembly and the brake pedal assembly are connected with a clutch master cylinder and a brake master cylinder correspondingly. An oil outlet of the clutch master cylinder is connected with an oil inlet of a clutch wheel cylinder through a clutch hose, and an oil outlet of the brake master cylinder is connected with an oil inlet of each brake wheel cylinder through a brake hose. The piston end of the clutch wheel cylinder is fixedly connected with one end of a rocker arm assembly, and the other end of the rocker arm assembly is fixedly connected with one end of a disengaging lever. The other end of the disengaging lever is fixedly connected with the shifting fork. According to the hydraulic-type clutch and brake control system, due to the fact that a limiting compressed spring, a return tension spring, a limiting support and the hoses are connected, the initial gap of a clutch pressure plate is guaranteed while mechanism gaps are eliminated, the service life of the clutch pressure plateis further prolonged and the using safety of vehicles is further improved.

The invention relates to the technical field of atomizers, in particular to a microporous ceramic heating body. The microporous ceramic heating body comprises a porous ceramic body and a heating circuit, a plurality of tobacco tar storage grooves are concavely formed in the top of the porous ceramic body at intervals, and the outer surface of the porous ceramic body comprises an atomizing surface located at the bottom of the porous ceramic body and an tobacco tar sealing surface located on the side wall of the porous ceramic body. The outer side surface of the tobacco tar sealing surface is coated with a glass glaze layer, the heating circuit is arranged on the atomizing surface, and the porous ceramic body is prepared by sintering a porous ceramic material. According to the microporous ceramic heating body, the plurality of tobacco tar storage grooves are concavely formed in the upper end face of the porous ceramic body, so that the tobacco tar storage amount and the contact area between tobacco tar and the porous ceramic body can be increased, and the tobacco tar can permeate to an atomizing surface through micropores in the side wall of the porous ceramic body to be atomized;the tobacco tar sealing surface of the side wall of the porous ceramic body is coated with the compact glass glaze layer; the problem that part of tobacco tar leaks through micropores in the side wall of the porous ceramic body can be effectively avoided.