43results about How to "Extended lubrication time" patented technology

A self-lubricating assembly for a linear driving device comprises an oil applying subassembly, an oil transmitting subassembly and an oil container. The oil transmitting subassembly transmits lubricating oil from the oil container to the oil applying subassembly, and the oil applying subassembly is driven by the linear driving device to perform lubricating action automatically. The oil container is provided for storing lubricating oil to prolong lubricating time of the linear driving device.

The invention belongs to the technical field of valves, and is specifically a three-way ball valve, including a valve body; a valve ball is rotatably connected to the valve body, and a valve seat is provided at the sliding connection part between the valve body and the valve ball; a valve stem is fixedly connected to the top of the valve ball , the No. 1 hole opened in the valve stem is slidingly connected with a spool; the valve ball is provided with a No. 2 hole corresponding to the valve seat, and the No. 2 hole is connected with the No. 1 hole; the two ends of the No. 2 hole are sealed and connected with arc-shaped shrapnel; No. 1 hole is provided with a chute near the top, a limit ring is provided at the corresponding position of the spool and the chute, and a spring is set on the spool above the limit ring; a through groove is opened on the top of the valve stem; There is a handle, the middle part of the handle is rotationally connected with the through groove through the revolving pin, and the revolving pin deviates from the center of the valve stem; the handle is provided with a round hole near the center of the valve stem, and a round rod is slidingly connected in the round hole, and the round rod and the sliding column The top is fixed; the invention reduces the friction between the shrapnel and the valve seat by pressing down the handle, and increases the opening efficiency of the ball valve.

The invention relates to a composite abrasion-resisting corrosion-resisting self-lubricating film and a preparation method thereof. Laser transformation hardening is conducted on a steel material surface, and low temperature ion nitriding and ion sulphuration processing is conducted on a transformation hardening layer to obtain the composite abrasion-resisting corrosion-resisting self-lubricating film. The laser transformation hardening low temperature ion nitriding and sulphuration composite abrasion-resisting corrosion-resisting self-lubricating film can further improve abrasion-resisting lubricating performance of the steel material surface, and a structural diagram is shown as graph 1. The composite abrasion-resisting corrosion-resisting self-lubricating film is novel in structure, has no obvious boundary between the laser transformation hardening layer and the nitriding / sulphuration layer, and is good in combination with the base body. Due to the fact that the laser transformation hardening processing can reach conditions of self-quenching, grains are refined, more interfaces are formed, diffusion channels of [N] and [S] are increased, and formation of the nitriding / sulphuration layer is promoted. The thickness of the laser transformation hardening layer ranges from 0.3 to 0.7 mm, the thickness of the nitriding layer ranges from 0.1 to 0.4 mm, and the thickness of the sulphuration layer ranges from 0.001 to 0.01 mm. Through friction abrasion tests, friction coefficient, polishing scratch depth and the like of a composite modified layer are small, and good abrasion-resisting, anti-friction and lubrication effects are achieved.

The invention discloses a detachable expansion and contraction reel, which comprises a base, a controller and a motor. A second bracket is arranged on the top of the base, and a rotating drum is arranged between one side of the second bracket. The base The other side above is provided with a second shell through the first bracket, and one side of the first shell on one side of the second shell is provided with a collar, and the inner wall of the second shell on one side of the first shell is A rotating rod is arranged between the inner walls on one side, and a bearing seat is arranged on the inner side of the second cylindrical shell on the side of the outer wall on both sides of the rotating rod and on the inner side of the first cylindrical shell. In the present invention, second connecting rods are evenly arranged between the outer walls of the inner wall of the first shell and the inner wall of the second shell, and the outer walls of the rotating rods, and a connecting block is arranged at the middle position of the rotating rods. This structure strengthens the expansion and contraction of the reel. Strength, effectively prolonging the service life of the expansion and contraction reel.

The invention relates to mixing and stirring equipment for chemical industry, in particular to a novel high-efficiency energy-saving planetary vacuum stirrer. The stirrer is only provided with a transmission shaft, wherein a planetary gear train component mainly consists of two groups of planetary gear trains, a planetary box and a planetary shield; solar gears I and II of the planetary gear train are fixedly arranged on a bearing seat which is loosely sleeved on the transmission shaft; the planetary box is arranged on the transmission shaft and fixed by a nut; a high-speed dispersing component and a low-speed stirring component are arranged on the planetary box; a planetary gear I engaged with the solar gear I is connected with the high-speed dispersing component; the planetary gear II engaged with the solar gear II is connected with the low-speed stirring component; and the diameter of the solar gear I is greater than that of the solar gear II. The stirrer has the advantages of improving high work reliability, reducing the manufacturing cost and the maintenance cost, showing the high stirring efficiency, reducing the size of the entire machine and reducing the weight, along withhigh mixing efficiency, low gap, low noise and the like.

The invention discloses a drug-loaded synovial fluid additive. Using fluorinated graphene, dopamine and hyaluronic acid / sodium hyaluronate as main raw materials, a one-step method is used to synthesize polydopamine coupling, hyaluronic acid / hyaluronic acid The sodium-modified fluorinated graphene nano-drug carrier is used as a composite additive to improve the lubricating properties of joint synovial fluid after adsorbing drugs for the treatment of arthritis. The preparation method of the technology is simple, the compound additive has good biocompatibility, can significantly reduce the degradation rate of hyaluronic acid, the loaded drugs can effectively treat joint inflammation, and greatly improve the friction reduction and antiwear properties of joint synovial fluid performance, thereby extending the life of the synovial fluid.