35results about How to "Not easy to wear and deform" patented technology

The invention discloses a vibration arm connecting structure used for vibrating equipment. The vibration arm connecting structure comprises a vibrating arm and a drive support, the drive support comprises a left connecting lug and a right connecting lug, a horn-shaped through hole is formed in the left connecting lug, a straight-through hole is formed in the right connecting lug, a connecting pinshaft which penetrates through the horn-shaped through hole and the straight-through hole is assembled between the left connecting lug and the right connecting lug, the left end of the connecting pinshaft is a horn-shaped end, a right inner thread hole is formed in the right end of the connecting pin shaft, a flat sleeve is connected to the right side wall of the right connecting lug, a tension bolt is in threaded connection inside the right inner thread hole, and a right end cover is slidingly connected to the tension bolt. One end of the vibrating arm is located between the left connectinglug and the right connecting lug and connected with the connecting pin shaft; one end of the connecting shaft is designed into a horn-shaped end, the other end of the connecting pin shaft is designedinto a cylindrical shaft in a structural form, in this way, a locking component for the horn-shaped end is omitted, and it is avoided that an original locking component is easy to deform.

The invention relates to a bolt device which comprises a bolt and a nut, wherein the bolt comprises a bolt cap and a screw rod; the screw rod is provided with full threads; the outer circumference of the bolt cap is provided with at least one pair of radial blind holes distributed along the axis direction; and the outer circumference of the nut is provided with at least one pair of radial blind holes distributed along the axis direction of a thread hole of the nut. The invention has higher deformation and slide resistance, and the bolt device can be just opened by a special spanner, thereby having favorable theft preventing performance and being difficult to lose.

A magnetic bar self-rotation type permanent magnet filter is disclosed. A magnetic chain is driven by a motor drive mechanism to periodically reciprocate and to enter the liquid in a tank body used for storing cold rolling cooling liquid so that metal dust in the cooling liquid is adsorbed. A decontamination mechanism is disposed on the magnetic chain mechanism and is in contact with a decontamination segment, above the liquid level, of the reciprocating magnetic chain in a manner that the decontamination mechanism and the plane where the upper surface of the magnetic chain is are perpendicular to each other or arranged with a certain included angle, and in this process, each magnetic bar moves in a direction perpendicular to the length direction of the magnetic bar and rotates itself at the same time to scrape metal dust off the magnetic bar. Magnetic bar deformation or damage caused by rigid contact with the decontamination mechanism in a magnetic bar movement process, and device failure breakdown caused when the decontamination mechanism is stuck in the magnetic bar transmission chain can be prevented. In addition, the overall size of the device can be greatly reduced, the operation speed and follow-up effect of the magnetic chain mechanism are significantly improved, and the device has wider applicability.

The invention relates to a TPE (Thermo Plastic Elastomer) material capable of being recovered after stress and deformation at low temperature, and a preparation method and application thereof. The TPE material is prepared from the following components in parts by weight: 100 to 200 parts of SEBS, 125 to 300 parts of white oil, 45 to 120 parts of polypropylene, 50 to 200 parts of filler and 0.1 to 1.5 part of antioxygen. In order to prepare the TPE material, the method comprises the steps of screening, weighing and preparing the SEBS, the white oil, the polypropylene, the filler and the antioxygen; adding the prepared SEBS, the prepared polypropylene and the prepared filler into a stirring machine, and stirring at slow speed to 45 DEG C; slowly adding the prepared white oil, and after the white oil is uniformly absorbed, adding the antioxygen; discharging when the temperature is higher than 85 DEG C, and feeding a discharged material into a double-screw extruder for pelleting. The TPE material prepared through the technical scheme can automatically get back into shape after an external force is removed if being stressed to be curled for a long time at low temperature, is excellent in inoxidizability, durable and not easy to abrade and deform, and can be used for manufacturing a foot pad.

The invention provides a variable-width box girder mobile formwork device and a construction method. A variable-width box girder mobile formwork device includes a main beam, a temporary main beam, a beam, a corbel beam, a bracket, and a hydraulic pump. Station, motion mechanism and electrical system, the corbel is fixed on the bridge pier through corbel columns, a main girder is arranged on both sides of the top of the corbel, and at least one main girder is arranged between the two main girders. Beam, the main beam and the temporary main beam are all set on the corresponding kinematic mechanism through the corresponding bracket, the kinematic mechanism is set on the corbel beam, the kinematic mechanism and the corbel beam, the kinematic mechanism and the bracket There is a mobile hydraulic cylinder between the bracket and the temporary main beam and between the bracket and the main beam. The mobile hydraulic cylinder is connected with the hydraulic pump station through the oil pipe. The main beam and A crossbeam is arranged on the upper side of the temporary main beam, and an inner mold and an outer mold composed of wear-resistant templates are arranged on the upper side of the crossbeam. The invention also provides a construction method.

The invention discloses a guide rail type permanent magnet chain filtering system for cold-rolling cooling liquid treatment. The guide rail type permanent magnet chain filtering system comprises a magnetic chain mechanism, a pollution cleaning mechanism, a slag recycling mechanism and a motor transmission mechanism, wherein the pollution cleaning mechanism as a key improvement comprises a roller way unit with a space closed-loop structure, sleeve type slag scrapers correspondingly arranged on magnetic sticks in the length direction in a sleeved manner and guide components for connecting the roller way unit with the sleeve type slag scrapers; when the magnetic sticks drive the slag scrapers to do linear motion together along the chain transmission direction, the slag scrapers and the guide components are fixedly connected to do motion and are restrained by a trace of the roller way unit, and therefore, metal dust adsorbed by the magnetic sticks can be scraped off. According to the guide rail type permanent magnet chain filtering system, the phenomenon that a magnetic stick deforms or is damaged due to rigid contact between the pollution cleaning mechanism which moves to an extreme position and the magnetic stick can be effectively avoided; furthermore, the overall size of the system can be greatly reduced, and the running speed and the following efficiency can be obviously improved. The guide rail type permanent magnet chain filtering system can be widely applied to filtering, purifying and magnetic separation of various types of industrial water which contains iron dust and is adhered with dirt.

The invention provides a method for machining a cross groove male die with the cold heading technology. The method includes the following concrete steps: (1) machining and forming milling cutter, (2) after the cross groove profile of a forming punch is milled roughly with the forming milling cutter, performing finish machining with a forming grinding wheel to remove the allowance and meanwhile controlling the size b, the size e and the size f of the forming punch and the compound angle gamma and the compound delta of the forming punch, (3) punching a forming pressing die with the forming punch, and (4) forming the cross groove male die in a pressing mode with the forming pressing die. While the material and the hardness of the male die are kept unchanged, the auxiliary tools including the forming milling cutter, the forming punch and the forming pressing die get involved and the punching process is improved. Thus, not only can the boundary dimensions of the cross groove male die be reflected fairly well, but also the method can be used for machining the cross groove at one time and will not cause the quality problems such as collapse on the periphery of the cross groove and changing of the angle of a countersunk head when the head portion is formed. Anti-fatigue strength of parts is obviously promoted, and while precision requirements are met, the method has the advantages of saving time and material.

An argon arc welding torch with cooling function and a device with the argon arc welding torch, comprising a gun body shell; an insulator connected with the gun body shell, a first support ring and a sealing body; connected with the insulator, the first support ring and the sealing body The electrode connecting body; the electrode connected with the electrode connecting body; the swirl ring connected with the gun body shell; the porcelain nozzle connected with the insulator; the nozzle connected with the swirl ring; the gas distributor; the sealing body has a cooling cavity; the electrode connection The first end of the body is provided with a first cooling fluid inlet pipe and a first cooling fluid outlet pipe, the other end is provided with a second cooling fluid inlet pipe and a second cooling fluid outlet pipe, and the second cooling fluid inlet pipe The liquid outlet of the cooling chamber is connected with the liquid inlet of the cooling chamber, the liquid inlet of the first cooling fluid liquid inlet pipe is connected with the liquid outlet of the cooling chamber, and the first cooling fluid liquid inlet pipe and the first cooling fluid liquid outlet pipe extend into the electrode connection The body is close to the end of the electrode; the electrode connecting body is provided with a protective gas pipe which is communicated with the gas distributor.

The invention discloses a variable section nozzle ring for a turbocharger. The variable section nozzle ring comprises an installation disk, a shifting disk, a plurality of pin shafts and a plurality of shifting forks. The installation disk comprises a cylindrical portion and an annular portion. The annular portion extends outwards in the radial direction from one end of the cylindrical portion. The shifting disc is rotationally arranged on the cylindrical portion in a sleeving mode. The pin shafts are connected to the shifting disk. One end of each shifting fork and one corresponding blade are connected and rotate synchronously, and the other end of each shifting fork is provided with a gap. A sliding sleeve is rotationally arranged on each pin shaft in a sleeving mode. The sliding sleeves are sleeved with the shifting forks in a one-to-one corresponding mode through the gaps. The sliding sleeves can freely rotate and slide in the gaps in the shifting forks. The sliding sleeves are matched with the gaps in shape. The outer walls of the sliding sleeves are approximately square. The contact surfaces between the outer walls of the sliding sleeves and the two side walls of the gaps in the shifting forks are flat surfaces. Abrasion is reduced in the relative sliding process of the pin shafts and the shifting forks.

The invention provides a melting ingredient for a piston, and the melting ingredient is mainly used for solving the problems that the pistons cast and formed from the existing melting ingredient are easy to deform and wear and have lower hardness and larger brittleness. The melting ingredient for the piston comprises the following components in percentage by weight: 2.3-3.5 of carbon, 1.7-2.2 of silicon, 0.6-0.9 of manganese, 0-0.12 of sulfur, 0-0.1 of phosphorus, 0-0.06 of chrome, 0.01-0.02 of antimony, 0.2-0.5 of copper and the balance of iron. The melting ingredient for the piston is molten, casted and formed to obtain a piston finished product; and the obtained piston finished product is not easy to deform and wear and has the advantages of high tensile strength, less brittleness, good graphite morphology and lower cost.

An argon arc welding torch and a device having the same, comprising an insulator (11); a torch head body (1) located outside the insulator (11) and connected to the insulator (11); and a first end connected to the insulator (11) The swirl ring (14); the nozzle (8) connected to the end of the gun head body (1) near the swirl ring (14); the air inlet pipe (4), the liquid inlet pipe (3) and the liquid outlet arranged in the insulator (11) tube (2); the tungsten pole seat (5) connected to the liquid inlet pipe (3) or the insulator (11) near the vortex ring (14); the tungsten pole seat (5) connected to the end far away from the liquid inlet pipe (3) Tungsten pole (6); located at the end of the tungsten pole seat (5) away from the tungsten pole (6), the outer cylindrical surface is connected with the insulator (11), the inner cylindrical surface is connected with the tungsten pole seat (5), and the gas diffuser is connected with the air intake pipe (4 ) communicated air diffuser net (10); there is a gas flow channel for the gas to flow out between the tungsten pole seat (5) and the tungsten pole (6), the vortex ring (14) and the nozzle (8).

The invention discloses an ultrahigh-pressure pipeline system with a combined type check valve. The ultrahigh-pressure pipeline system comprises a base. A liquid inlet main flow channel and a liquid outlet main flow channel are formed in the two sides of the base. A first convergence flow channel, a second convergence channel and a plurality of branches are arranged between the liquid inlet main flow channel and the liquid outlet main flow channel. The branches are provided with liquid inlets and liquid outlets. The liquid inlets are connected with the first convergence flow channel. The liquid outlets are connected with the second convergence channel. The first convergence flow channel is communicated with the liquid inlet main flow channel. The second convergence channel is communicated with the liquid outlet main flow channel, and the drift diameter of each branch is less than the drift diameter of the liquid inlet main flow channel and the drift diameter of the liquid outlet main flow channel. The ultrahigh-pressure pipeline system further comprises the combined type check valve. The combined type check valve comprises independent check valve bodies of which the number is equal to that of the branches, and each branch is internally provided with an independent check valve body. The base is further provided with a detection branch. The detection branch comprises a low-pressure branch and a high-pressure branch.

The present invention relates to a kind of graphitization fiber, carbon fiber, ceramic fiber brake disc and its manufacturing process, with polyacrylonitrile graphitization fiber, polyacrylonitrile carbon fiber, ceramic fiber as skeleton material, nitrile rubber powder and barium sulfate as filler, The modified phenolic resin is used as a binder to make the brake disc raw material, and then the brake disc is made by hot pressing, heat treatment, surface polishing and drilling; the weight percentage of each component of the brake disc raw material is: polypropylene Nitrile graphitized fiber 0.5%~5%; polyacrylonitrile carbon fiber 45%~65%; ceramic fiber 10%~25%; modified phenolic resin 15%~25%; nitrile rubber powder 0.5%~2%; barium sulfate 0.5% to 2%; the invention uses a new type of brake disc made of non-metallic materials, which has the advantages of light specific gravity, large heat capacity, strong adhesion, high temperature resistance, stable friction coefficient, good wear resistance, and strong mechanical properties. Excellent braking performance, not easy to deform and wear, no noise.