43results about How to "Avoid oil seepage" patented technology

The invention relates to a composite of lubricant and a preparation method thereof, in particular to a composite of engine lubricant and a preparation method thereof, which belong to the lubricant technical field. Alkyl naphthalene and naphthenic bright stock are added to base oil and at the same time thiophosphoric acid molybdenum additive containing nitrogen, a shless dispersing agent boride, hydrostyrene-isoprene VI improver (Infineum SV 261) and the like are added. Through the mutual coordination of the components, the lubricant composite has obvious compatibility adaptability of a rubber sealing ring, engine oil leakage is avoided, gas blow by is prevented, the dynamic property of the engine is improved, engine oil consumption is reduced, the emission property of the engine is improved and the oil draining period of engine oil and the service life of the engine are prolonged. The invention is particularly applicable to the vehicles which have run more than 100000km or have been overhauled.

The invention relates to an efficient and energy-saving device for a hydraulic station. The device comprises a control cabinet, a hydrocylinder, a hydraulic control valve, an oil pump with a motor, a pressure gauge with an electric contact, an electromagnetic relief valve, an accumulator, a check valve and an intelligent control valve, wherein the intelligent control valve is arranged between theinlet of the oil pump and a hydraulic oil tank and connected with the hydraulic control valve through the accumulator; an oil return tubule which is communicated with the hydraulic oil tank is arranged on the oil pump; the check valve and the pressure gauge with the electric contact are arranged between the oil pump and the hydraulic control valve in turn; a pipeline between the check valve and the pressure gauge with the electric contact is communicated with the oil tank through the electromagnetic relief valve; and the intelligent control valve, the pressure gauge with the electric contact and the electromagnetic relief valve are all connected with the control cabinet. The device has the advantages that: the structure is simple; cooling equipment does not need to be added; the using cost is low; the control cabinet is matched with the intelligent control valve, so that the hydrocylinder is automatically boosted, and high-speed oil return is avoided and the oil pump can run in an unpowered mode continuously; the whole energy consumption is low; and the equipment runs safely, has a long service life and is environmental-friendly.

The invention relates to the field of daily chemical products, in particular to a plant source antibacterial agent and a preparation method thereof. The plant source antibacterial agent comprises thefollowing components in parts by weight: 20-33 parts of a pulsatilla cernua extract, 14-36 parts of a Chinese prickly ash extract and 20-38 parts of a tillandsia usneoides extract. The plant source antibacterial agent provided by the invention has a very high property of inhibiting growth of bacillus subtilis, escherichia coli, staphylococcus aureus, candida albicans, pseudomonas aeruginosa, aspergillus niger and the like, and a preservative property as well, besides, the stability of the agent can be also very well improved at a high temperature. In addition, cosmetics can be kept gentle whenantibacterial effects and high-temperature stability are maintained, and the agent has the characteristics of being non-toxic and non-irritant to human bodies.

A compact type redundant sealing structure is characterized by comprising a first shell (1), a second shell (2), an oil introducing pin (3), a first sealing ring (4), a second sealing ring (6) and a third sealing ring (8); the oil introducing pin (3) is arranged at the joint between the first shell (1) and the second shell (2); the side faces of the two ends of the oil introducing pin (3) are provided with a first sealing ring groove and a second sealing ring groove respectively; the first sealing ring (4) and the second sealing ring (6) are arranged in the first sealing ring groove and the second sealing ring groove respectively; the first shell (1) or the second shell (2) is further provided with a third sealing ring groove or an annular hole; the third sealing ring (8) is arranged in the third sealing ring groove or the annular hole; the third sealing ring (8) and the first sealing ring (4) form a redundant sealing structure on one side; and the third sealing ring (8) and the second sealing ring (6) form a redundant sealing structure on the other side. The compact type redundant sealing structure is compact in structure, good in reliability, and capable of achieving dual seal of the compact-structure portion and effectively preventing oil leakage which frequently appears on a single-seal structure.

The invention discloses an organic silicon pouring sealant which comprises two components including a component A and a component B. The component A comprises vinyl, methyl vinyl MQ resin, a reinforcing filler and a catalyst. The component B comprises vinyl silicone oil, methyl vinyl MQ resin, hydrogen-containing silicone oil, a flame retardant, a silane coupling agent and a polymerization inhibitor. The preparation method comprises the following steps of: adding vinyl silicone oil, methyl vinyl MQ resin and a catalyst into a reaction kettle, dispersing at a low speed, adding a reinforcing filler, dispersing at a high speed, and defoaming in vacuum to obtain a component A; and adding vinyl silicone oil, methyl vinyl MQ resin and a polymerization inhibitor into a reaction kettle, dispersing at a low speed, adding hydrogen-containing silicone oil and a silane coupling agent, dispersing at a low speed, adding a flame retardant, dispersing at a high speed, and defoaming in vacuum to obtain a component B; The comparative tracking coefficient (CTI) of the organic silicon pouring sealant is larger than or equal to 600V, and the organic silicon pouring sealant is free of oil leakage, excellent in flame retardant property, small in viscosity and easy to pour.

The invention relates to an oil filling pipe buffer for an automotive oil tank. A through hole is arranged in the middle of a base, the bottom of the base is articulated with a cover plate through a pin shaft which is provided with a spring, and both ends of the spring respectively abut on the base and the cover plate which is used for closing the through hole. The oil filling pipe buffer for the oil tank, which is provided by the invention, is fixed in an oil filling pipe of the oil tank, and fuel oil in the oil tank can only impact on the buffer without impacting the oil tank cover when an automobile immediately brakes or turns a corner so as to further thoroughly avoid an oil leakage phenomenon. When oil needs to fill in the oil tank, the oil tank cover is opened, an oil filling gun extends into the oil filling pipe, the cover plate is pushed inwards by the oil filling gun and turns inwards, the oil filling gun can penetrate through the base for filling oil; and after oil is filled, the oil filling gun is drawn back, and the cover plate can be automatically closed.

The invention discloses an anti-icing asphalt concrete, which comprises the following components by weight: 37-39 parts of gravel with a particle size of greater than 11mm and less than or equal to 15mm; 13-15 parts of gravel with a particle size of greater than 6mm and less than or equal to 11mm; 4 parts of gravel with a particle size of greater than 3mm and less than or equal to 6mm; 40-42 parts of stone chips with a particle size of greater than 0 and less than or equal to 3mm; 3 parts of mineral powder; 5-6 parts of modified asphalt; and 5-6 parts of an admixture. The invention also discloses a preparation method of the anti-icing asphalt concrete. The preparation method provided by the invention not only ensures that the road anti-icing admixture is wrapped by asphalt, but also prevents a too high breakage rate of the road anti-icing admixture due to too long stirring time. With the proportion adopted by the invention, the porosity of the mixture is much smaller than that of a common asphalt mixture. After compaction, because of good compactness, the anti-icing asphalt concrete is not affected even in rainy days, the previous phenomenon that a honeycomb structure can appear on the pavement after completion of anti-icing asphalt concrete construction for a period of time can be completely eradicated, the pavement strength can be more durable, and the pavement service life can be prolonged.

The invention provides an assembly used for protecting and dismounting a high-speed input shaft and an output shaft. The assembly comprises a hollow protective jacket, a special nut, O-shaped rings and anti-loosening bolts, wherein fastening screw holes are uniformly formed in the surface of the hollow protective jacket in the radial direction of the hollow protective jacket; the special nut is connected with outer threads of the hollow protective jacket; a ring of grooves is formed at the inner side of the bottom of the special nut; a ring of inward step surfaces is arranged at the outer side of the top of the special nut; the O-shaped rings are arranged in the grooves in a matched mode; and the anti-loosening bolts are connected in the fastening screw holes in a screw-thread fit mode. According to the assembly, shaft neck abrasion loss of a high-speed shaft can be reduced, the service life of the high-speed shaft is prolonged, and an oil leakage phenomenon is avoided; the dismounting of the assembly is convenient and the cost is low; and the current high-speed shaft can be mounted on the high-speed shaft neck by only needing to change the inner diameter and the bearing inner diameter of framework oil seal.

The invention discloses a far range atomizer. The key points of the technical scheme of the invention are as follows: the far range atomizer comprises a frame body; the frame body is provided with a liquid tank, a liquid extraction component, an atomization component and a hydraulic component used for pushing the atomization component to lie on the frame body on back; the liquid extraction component is provided with a valve group used for supplying liquid for one of the hydraulic component and the atomization component in a switching manner; a liquid inlet of the hydraulic component is provided with a valve piece used for limiting the liquid to reflux to the liquid extraction component; and the hydraulic component is provided with a pressure relief component used for controlling drainage of the liquid. As for the far range atomizer, by utilizing a water tank and a water pump to control lifting of a hydraulic cylinder, an inclination of the atomizer can be hydraulically controlled, andthe atomizer also has the effect of volume effective control.

According to an oil filling pipe buffer for an automobile oil tank, a through opening is formed in the middle of a base, a cover plate is hinged to the bottom of the base through a pin shaft, a springis installed on the pin shaft, two ends of the spring abut against the base and the cover plate respectively, and the through opening is sealed by the cover plate. The oil tank oil filling pipe buffer is fixed in an oil tank oil filling pipe; when an automobile is braked emergently or turns, the fuel oil in an oil tank only impacts the buffer and cannot impact an oil tank cover, and then the oilseepage phenomenon can be thoroughly avoided. When oil needs to be filled into the oil tank, the oil tank cover is opened, an oil filling gun stretches into the oil filling pipe, the cover plate is pushed inwards by the oil filling gun, the cover plate can be then overturned inwards; the oil filling gun can penetrate through the base to add oil, after oil adding is completed, the oil filling gun is pulled out, and the cover plate can be closed automatically.

The invention puts forward a neutral alcohol transparent silicone sealant and a preparation method thereof. The neutral alcohol transparent silicone sealant comprises the following components in partsby weight: 70-90 parts of alkoxy-terminated polydimethylsiloxane, 15-25 parts of a plasticizer, 30-50 parts of a thixotropic agent, 0.1-3 parts of a crosslinking agent, 1-10 parts of a tackifier and0.1-3 parts of a catalyst. The plasticizer is mainly prepared from methyltrichlorosilane and white oil. The preparation method comprises the following steps: 1) dehydrating the alkoxy-terminated polydimethylsiloxane and thixotropic agent, and cooling to room temperature to obtain a matrix; and 2) adding the plasticizer, crosslinking agent, tackifier and catalyst into the matrix, and stirring in avacuum condition, thereby obtaining the neutral alcohol transparent silicon sealant. The neutral alcohol transparent silicone sealant not only has good ageing resistance and binding property, and is high in curing speed.

The invention provides a control system and a harvester with the control system. The control system comprises a valve body, a working oil cylinder, a three-position four-way valve, a first hydraulic control valve and a second hydraulic control valve, a piston of the working oil cylinder divides a working cavity of the working oil cylinder into a first working cavity and a second working cavity, the first working cavity communicates with a first working oil port in the valve body, the second working cavity communicates with a second working oil port in the valve body; the three-position four-way valve is connected with the valve body and communicates with a containing cavity of the valve body; part of the first hydraulic control valve is arranged in the containing cavity and is connected with the three-position four-way valve; and the second hydraulic control valve and the first hydraulic control valve are arranged in a spaced mode, and part of the second hydraulic control valve is arranged in the containing cavity and connected with the three-position four-way valve. The control system and the harvester with the control system solves the problems that in the prior art, an electriccontrol valve assembly in a harvester is assembled in a stacked mode, so that the overall size of the electric control valve assembly is large, large installation space is occupied, and the phenomenaof oil leakage and oil seepage are likely to happen.

The invention provides a 4G frame pushing and flattening rack. The 4G frame pushing and flattening rack comprises a base, supporting uprights, compaction devices, telescopic devices and line bodies. The supporting uprights are perpendicular to the base and are arranged at the four corners of the base upwards. The line bodies are arranged above the base and located between the supporting uprights on the two sides. The compaction devices are arranged at the upper ends of the two sides of the line body moving direction and connected with the supporting uprights. The telescopic devices are arranged at the upper ends of the two sides of the line body moving direction and connected with the compaction devices. According to the 4G frame pushing and flattening rack, the two end faces of an enginebody are pushed, flattened and compacted, deflection of a frame due to extrusion and vibration is avoided effectively, and the oil seepage phenomena on the connection surface of an uneven engine bodyand a flywheel shell and on the connection surface of the uneven engine body and a gear housing are avoided.