66results about How to "Efficient lubrication" patented technology

The invention discloses a preparation method of a high-temperature-resistant lubricant for a drilling fluid, which comprises the following steps: 1) while stirring, sequentially adding 100-120 parts by mass of waste animal and vegetable oil, 8-12 parts by mass of triethanolamine and 2-5 parts by mass of concentrated sulfuric acid into a reaction kettle, and reacting at 120-140 DEG C for 3-5 hours; 2) cooling the reaction product to 60-80 DEG C, adding 20-50 parts by mass of fatty acid methyl ester and 20-50 parts by mass of white oil into the reaction kettle in the stirring state, and stirring for 1-2 hours; 3) adding 3-10 parts by mass of molybdenum disulfide into the reaction kettle in the stirring state, and stirring for 1-3 hours; and 4) cooling to normal temperature to obtain the high-temperature-resistant lubricant for a drilling fluid. The lubricant has the characteristics of high lubricating efficiency and high temperature resistance; after rolling at 190 DEG C for 16 hours, the lubricating factor decreasing rate can still reach 50% above; and thus, the lubricant can satisfy the lubricating demands for deep wells and ultradeep wells.

The invention provides lubricating systems for walking wheel opening gears of a crane and a crane comprising the lubricating systems. Each lubricating system comprises an oil tank, an oil pipe, a solenoid valve, a flow adjusting valve and an oil dripping pipe; one end of the oil pipe is connected with the oil tank; the other end of the oil pipe is connected with the solenoid valve; the solenoid valve is used for controlling the opening and closing of the lubrication system; a plurality of lubricating systems are arranged on a trolley balanced beam of the crane; each lubricating system corresponds to one group of walking wheel opening gears; a through hole is formed in the housing of the walking wheel opening gears and is aligned with the oil dripping pipe. Thicker gear oil is used for replacing grease, the oil dripping lubricating function is realized by using the solenoid valve to control the opening and closing of an oil path, automatic oiling and lubrication and precise oiling quantity are realized by using the controllability of the solenoid valve, time and labor are saved, the walking wheel opening gears are efficiently lubricated, and the whole system is simple, easy, light, convenient to disassemble and overhaul and low in cost.

The invention relates to a vibration auxiliary rotation cutting device based on an acute angle straight plate type flexible hinge, and belongs to the technical field of superfine milling processing. A piezoelectric stack I and a piezoelectric stack II are respectively mounted on a flexible device platform by using a pretightening screw I and a pretightening screw II; a capacitance type displacement measurement baffle plate I and a capacitance type displacement measurement baffle plate II are respectively connected with the flexible device platform by using fastening screws; the capacitance type displacement measurement baffle plate I and the capacitance type displacement measurement baffle plate II are respectively mounted on capacitance type displacement sensor clamp bases by using fastening screws; the capacitance type displacement sensor clamp bases are mounted on the flexible device platform by using fastening screws; a diamond cutter is fixedly connected with the flexible hinge platform through fastening screws; the flexible hinge platform is connected with a mounting base through fixing screws. The vibration auxiliary rotation cutting device has the advantages of being novel in structure, periodic scallop height in the ellipse vibration cutting process can be eliminated, and relatively high control precision of the flexible device can be achieved.

The invention provides an automatic lubricating system and a control method of a dynamic compaction machine. The dynamic compaction machine automatic lubricating system comprises an electric lubricating pump (1), an electromagnetic exchange valve (6), a distributor (7), a lubricating gear (8) and a controller (9), and an inlet of the electromagnetic exchange valve (6) is connected with an outlet of the electric lubricating pump (1) through a pipeline; the interior of the lubricating gear (8) is provided with first oil channels (81) which are radiated from the center to each gear tooth, outletsof the first oil channels (81) are located on the tooth surface of the gear teeth, and inlets of the first oil channels (81) are connected with a first outlet of the electromagnetic exchange valve through pipelines; the interior of the distributor (7) is provided with one-inlet and multiple-outlet second oil channels, the inlet of the second oil channels is connected with a second outlet of the electromagnetic exchange valve (6) through a pipeline. According to the dynamic compaction machine automatic lubricating system, the transmission gear and rolling bearings of the dynamic compaction machine can be conveniently and effectively lubricated, time and labor are saved, and labor cost is saved.

The invention provides a speed changer. By use of a baffle plate disposed in a first space of the speed changer, oil in a second space can be successively discharged into the first space. By use of a separator wall (11a), a first space (12) and a second space (13) are divided inside a housing (11) of the speed changer. A communication hole (11c) allowing oil to return to the first space from the second space is formed in the separator wall. A baffle plate (19) is disposed facing the communication hole in the first space. The baffle plate has a first wall part (19c), a second wall part (19d) and an arc-shaped third wall part (19e). The first wall part extends towards the communication hole by covering an upper part of an oil storing part (11b) formed at the bottom of the first space. The second wall part stands up from the first wall part by resisting the oil flowing from the communication hole. The third wall part stands up from the first wall part along the periphery of a variable gear (25) disposed parallel to the separator wall. Oil flowing to the upper surface of the first wall part through the communication hole of the separator wall from the second space is resisted by the second wall part and is held up via the variable gear along the third wall part.

The invention relates to an efficient forced lubrication system with a circulating lubrication function for a coal mining machine. The efficient forced lubrication system comprises a high speed end lubrication pump, a low speed end lubrication pump and a lubrication oil passage, wherein the high speed end lubrication pump and the low speed end lubrication pump are arranged in a transmission case of a rocker arm; the lubrication oil passage is arranged in a transmission case housing of the rocker arm and comprises a main oil passage and multiple groups of branched oil passages; the main oil passage is communicated with the high speed end lubrication pump, the low speed end lubrication pump and lubricating points of all shaft assemblies of a diving system of the rocker arm, and is also communicated with oil discharge outlets of the high speed end lubrication pump and the low speed end lubrication pump. In the efficient forced lubrication system disclosed by the invention, one of the high speed end lubrication pump and the low speed end lubrication pump is always at low position at each time and can supply oil to the main oil channel, so that the main oil passage is always filled with oil; the oil is supplied to the high speed end lubrication pump, the low speed end lubrication pump and the lubricating points of all the shaft assemblies of the diving system of the rocker arm in real time through all the branched oil passages; even if the coal mining machine works on the work face with a large dip angle, all parts of the driving system of the rocker arm do not lack oil; the efficient forced lubrication system has high applicability.

The invention relates to a solid lubricating device used for open-type lead screw nut transmission of a numerical control machine tool. The solid lubricating device is used for lubricating the surface of an open-type lead screw and comprises a nut and a nut seat. The nut is fixed to the nut seat, a hollow inner cavity used for storing solid lubricating agents is formed inside the nut seat and communicates with an inner cavity of the nut through a powder channel, and a circular ball is arranged in a connecting channel. Compared with the prior art, the solid lubricating agents are adopted as lubricating materials, so that friction and abrasion of the two surfaces making relative movement are reduced, and the surfaces are protected against being damaged, the situation that grease is used for lubricating is avoided, so that the overflowing grease is avoided, and not only is the steel grit erosion degree reduced, but also the working environment is improved.

The invention relates to a lubricating and seedling selecting integrated device for a seedling transplanter. The device comprises a seedling transplanting disc with a seedling channel, a lubricating disc is arranged below the seedling transplanting disc, and the lubricating disc is hollow and is vertically divided into an oil cavity and an air cavity by a horizontal oil film plate; the air cavityis communicated with an exhaust port of an air generator through an air circulating channel, the oil cavity is communicated with a plurality of oil outlet channels formed in the top surface of the lubricating disc and used for lubricating the seedling transplanting disc; a seedling selecting disc is arranged above the seedling transplanting disc, seedling inlet channels corresponding to the seedling channel are formed in the seedling selecting disc, and a seedling grabbing disc is arranged beside each seedling inlet channel in the seedling selecting disc; an electric claw type seedling grabbing mechanism is arranged on each seedling grabbing disc, the side of the bottom of each seedling grabbing disc is connected with the seedling selecting disc through a rotating shaft, and a speed reducing oil film layer is arranged on the inner wall of each seedling inlet channel. The integrated device is simple in structure, and can effectively achieve timely and efficient lubricating of the seedling transplanting disc. Meanwhile, unqualified seedlings can be removed, the overall service life of the seedling transplanter is prolonged, and the work efficiency of the seedling transplanter is improved.

The invention discloses a winding device for circuit laying. The winding device for circuit laying comprises a bottom plate, wherein a support frame is fixed to the top end of the bottom plate; a motor is fixed to the surface of one side of the support frame; a rotary shaft is rotationally connected to the output shaft of the motor; the rotation of the rotary shaft is transmitted to the inner sideof the support frame and a winding reel is fixed to the tail end of the rotary shaft; a fixed sleeve is fixedly connected to the support frame and the rotary end of the rotary shaft in a sleeved manner; a push rod movably penetrates into the outer wall of the fixed sleeve; the push rod extends into an empty cavity of the fixed sleeve and a push plate is fixed to the tail end of the push rod; an extrusion spring is arranged at the junction of the push plate and the empty cavity of the fixed sleeve; and a sponge block is arranged on the surface of one side of the push plate. Through the arranged sponge block, convenient and efficient lubrication for the surface of the rotary shaft is benefited; through an arranged brush head, convenient and rapid cleaning for dust and other impurities on the surface of the rotary shaft is benefited; and through an arranged limit plate, a guarantee on the normal working of the device is benefited, buffering for vibration of the device during working is facilitated, and the stability of the device is improved.

The invention discloses an oil supply structure based on precise lubrication of an integral piston. The oil supply structure comprises a piston skirt part, a piston head part, a cooling oil cavity, an oil supply channel plane of a piston pin hole and a piston body, wherein the piston head part is arranged in the piston body, a combustion chamber is installed in the position, on one side of the piston head part, of the piston body, the outer wall of the combustion chamber is fixedly connected with the piston skirt part, the cooling oil cavity is formed in the position, below the combustion chamber, in the piston body, the outer wall of the cooling oil cavity is fixedly connected with the piston skirt part, a piston inner cavity is formed in the position, below the cooling oil cavity, in the piston body, the outer wall of the piston inner cavity is fixedly connected with the piston skirt part, and the piston skirt part is mounted in the piston body on one side of the piston inner cavity. According to the oil supply structure for precise lubrication of the integral piston, efficient oil supply is achieved, the utilization rate of lubricating oil is increased, the weight of the piston is reduced, and the bearing strength is improved.

The invention discloses a liquid flow guide member. The liquid flow guide member is used for lubricating a planetary gear in an automatic transmission, and comprises an annular body, wherein a bulgedring is arranged at one side of the annular body, and the sidewall of the bulged ring has a reducing taper in the axial direction; a plurality of hollow guide columns are arranged at the other side ofthe annular body; and an annular groove is formed in the inner wall of the annular body in the radial direction, and the hollow guide columns communicate with the sidewall of the annular groove. In the liquid flow guide member, during the rotary working of the liquid flow guide member, a splashing liquid medium is subjected to flow guide by the bulged ring which has the reducing taper under a centrifugal effect and effectively collected through the annular groove to be pressurized, and then flows to the planetary gear via the hollow guide columns, efficient lubrication in a transmission partlimited by a space is realized, and an independent oil supply system is not needed, so that the purposes of low cost and good lubrication effect are achieved.

The invention provides a belt oil wheel device capable of adjusting meshing automatically. The belt oil wheel device comprises a wheel shaft, a plurality of belt oil wheel oil pipes and hub plates andfurther comprises an elastic pipe, wherein the belt oil pipes are connected through chain plates; the elastic pipe is arranged between the hub plates; the belt oil pipes fit the outer surface of theelastic pipe; the belt oil pipes are hinged to the chain plate; oblong holes are formed in the parts, connected with the end parts of the belt oil pipes, of the hub plates; and at least one belt oil pipe not connected with the hub plates, is arranged between every two adjacent belt oil pipes connected with the hub plates. The special structure of the belt oil wheel device enables any belt oil pipeto squeeze the elastic pipe while receiving meshing impact, and the belt oil pipe is enabled to have elastic deformation within certain range to reach the buffering effect, so that the destructiveness of the meshing impact is eliminated, the situation that the belt oil pipes always closely fit a tooth surface is ensured and an excellent and stable lubricating effect is realized. The novel belt oil device has the advantages of efficient lubrication, low manufacture cost, simple installation and steady and reliable operation.