43results about How to "Uniform contact surface" patented technology

It is intended that the rotation resistance is decreased while the durability and seal performance are kept in the rolling bearing unit with seal ring.

The most thin wall-thickness portion 30 is provided in the vicinity of the base end of the seal lip 22a projecting laterally in sliding contact with the mating surface. The most thick wall thickness portion 31 is provided adjacent to the most thin wall thickness portion 30 on the tip end side. The thickness is gradually decreased from the most thick wall thickness portion 31 to the tip end. Further, the ratios of thickness in the respective portions 22a are properly controlled.

The invention discloses a scraper adjusting device and relates to the technical field of textile printing and dyeing machinery. The scraper adjusting device comprises a scraper holder for mounting a scraper. The scraper holder is slidably connected with a frame of a printing machine through a sliding arm. An elastic device is disposed between the scraper holder and the sliding arm. The elastic device is provided with a vertical rod disposed on the scraper holder. A spring and a sleeve are sleeved outside the vertical rod. The spring is disposed in the sleeve. The upper end of the sleeve is connected with a fastener used for adjusting pretension of the spring. A limit member fitting with the sleeve and the fastener is disposed on the vertical rod. The sleeve is fixedly connected with the sliding arm through a connecting rod. Compared with the prior art, the scraper adjusting device is simple for scrape pressure adjustment and high in operating efficiency. The elastic device is disposed on the scraper holder, so that the scraper is tightly pressed on a bedplate of the printing machine by the action of elasticity of the spring during motion, even force application and even contact area are achieved and printing quality is improved greatly.

The invention relates to the field of buildings, in particular to a building support for construction. The building support is high in supporting intensity and convenient to use. The building support comprises an upper supporting plate and a lower supporting plate. A guiding cylinder is arranged on the lower supporting plate. A supporting rod is arranged on the lower surface of the upper supporting plate. A supporting sleeve is arranged at the upper end of the guiding cylinder in a sleeved mode. The supporting sleeve comprises a sleeve body and a sleeve cover. The supporting rod penetrates through a through hole from top to bottom and is inserted into the guiding cylinder. A limiting part is arranged between the sleeve body and the sleeve cover. A position clamping part is arranged on the outer side of the sleeve cover. Outer threads are arranged on the outer cylinder wall of the guiding cylinder. Inner threads are arranged on the inner side of the lower portion of the sleeve body, or an adjusting ring is arranged at the bottom end of the sleeve body. A plurality of through grooves are formed in the supporting rod. The support further comprises locating inserting strips matched with through grooves. Parts of the building support are balanced in stress and stable in supporting and pushing, each operation action can be completed under a visible condition, visibility is achieved, the upper supporting plate and the supporting rod cannot rotate automatically, safety is high, supporting strength is high, and the angle of the upper supporting plate can be adjusted by adjusting the sleeve cover.

The invention relates to a terminal shell and a preparing method thereof. The preparing method of the terminal shell includes the steps that a to-be-machined shell is provided, the shell is provided with a groove, and plastic parts are formed in the groove; the plastic parts are coated with conductive ink so that the parts, on the two sides of the groove, of the shell are conductive; the conductive ink is cured to form an conductive ink layer, and a semi-finished product of the shell is obtained; a protection layer is formed on the conductive ink layer; the semi-finished product, with the surface coated with the protection layer, of the shell is subject to surface treating and machining; and the conductive ink layer and the protection layer of the semi-finished product, completing surface treating and machining, of the shell are removed. By means of the preparing method of the terminal shell, as the conductive ink has mobility, the shell can have good electrical conductivity, the overall preparing process is simple in operation, efficiency is high, and the machining cost is low.

The invention discloses a pneumatic bidirectional clamping device for turning. The pneumatic bidirectional clamping device for turning comprises a spindle, a reverser, a positioning centre, a positioning plate, a bidirectional inner support sleeve, an ejector rod and a pneumatic tail jack. The reverser is positioned at the center of the front end of the spindle, and the reverser and the spindle are in threaded connection; the positioning centre is positioned at the center of the front end of the reverser, and the positioning centre and the reverser are in slide fit and threaded connection; the positioning plate is positioned at the center of the front end of the positioning centre, and the positioning plate and the positioning centre are in slide fit and threaded connection; the bidirectional inner support sleeve is positioned at the center of the front end of the positioning centre, and the bidirectional inner support sleeve and the positioning centre are in slide fit and movable connection; the ejector rod is positioned at the inner center of the bidirectional inner support sleeve and is in threaded connection with the positioning centre; the pneumatic tail jack is positioned at the center of the front end of the ejector rod and is movably connected with a lathe guide rail. By the pneumatic bidirectional clamping device for turning, clamping efficiency is improved, product quality is guaranteed, and product scrappage is prevented.

The invention discloses an exhaust heat recovery device of a textile printing and dyeing forming machine. The device comprises a recovery pool, wherein a gas-washing heat-conducting liquid is arranged in the recovery pool, a waste gas inlet is arranged at the bottom of the recovery pool, a waste gas outlet is arranged at the top of the recovery pool, a coil is arranged in the recovery pool, one end of the coil extends out of the recovery pool to form a water inlet, the other end of the coil extends out of the recovery pool to form a water outlet, the waste gas inlet is connected to a gas inlet pipeline and the waste gas outlet is connected to a gas outlet pipeline. By the aid of the device, the waste gas can be subjected heat recovery further, harmful substances in waste gas can be cleaned, the heat recovery can be improved, and the exhausted waste gas meet environment protection requirements.

The invention discloses a deformed steel bar quenching process. The deformed steel bar quenching process is characterized by comprising the following steps that S1, a deformed steel bar forge piece isheated to 700-900 DEG C, and the temperature is kept for 50-100 minutes; S2, the time for transferring the deformed steel bar forge piece to any deformed steel bar quenching equipment in the claim 2-9 for rapid cooling is not longer than 45 s; and S3, the temperature of a liquid storage tank (7) is not higher than 45 DEG C.

The invention belongs to the field of lens surface treatment, and discloses a surface treatment process of a zinc sulfide lens, which comprises the following steps: (1) citric acid wiping; (2) preparing a polishing solution; (3) wiping with a polishing solution; (4) ultrasonic cleaning; and (5) entering a subsequent film coating procedure after the inspection is qualified. According to the zinc sulfide lens surface treatment process, the zinc sulfide lens can be better cleaned, the appearance problems that the surface of the zinc sulfide lens is dirty and white after film coating and the like are solved, and the yield of the zinc sulfide lens in the production process is increased.

The invention discloses an edge extrusion riveting process of a solar energy heat radiation base plate and a riveting mold for the process. The process comprises: performing clearance fit between a trough and a heat radiating fin of the heat radiation base; and extruding two side walls of the trough of the heat radiation base towards the heat radiating fin, and forming an assembling piece through edge extrusion; the pivoting mold comprises an upper template, a lower mold base and a lower template; a plurality of stripping floating blocks are arranged in the lower template; a plurality of lower mold punches, a punch fixing sleeve plate and a material choking sleeve plate are arranged on the lower template, wherein the material choking sleeve plate is arranged in the punch fixing sleeve plate; and heat radiation base plates to be combined are arranged between the punch fixing sleeve plate and the lower template. According to the edge extrusion riveting process provided by the invention, welding is replaced by punching, the machining cost is saved, the manufacturing cost is reduced greatly, and the production efficiency is improved; the edge extrusion riveting process has the advantages of short mold-opening period, low cost, high production efficiency, stable quality, beautiful structure, strong holding capability of the heat radiation fin, uniform contact plane and good thermal conduction; the product manufacturing competitiveness is improved, and the edge extrusion riveting process has a wide popularization application value.

The invention relates to a pressure-equalizing turbulent type water distributor, and belongs to the technical field of sewage treatment equipment. The pressure-equalizing turbulent type water distributor comprises a water distributing interface and a water distributing plate, wherein a water inlet of the water distributing interface is connected with a water outlet of an inlet water pressure pump of the water distributor. The pressure-equalizing turbulent type water distributor further comprises a water equalizing room, wherein the water inlet of the water equalizing room is communicated with the water outlet of the water distributing interface; the water distributing plate is fixedly arranged on the top surface of the water equalizing room; the top surface of the water equalizing room is equipped with at least three water distributing holes around the water distributing plate; water distributing stabs are arranged on the side wall of the water distributing plate; the water distributing stabs surrounds the water distributing plate in a spiral manner. The pressure-equalizing turbulent type water distributor disclosed by the invention balances pressure of each water distributor, sufficiently distributes water, disperses water at the periphery of the water distributor, realizes uniform water distribution at the periphery of the plate, prevents mud deposition, greatly increases mud water contact area, so that metabolism efficiency of sludge is improved.

The invention discloses a noble-metal iron-carbon-filler sewage reactor. According to the reactor, a tank body is inside provided with a stainless-steel porous filtration plate, three layers of an insertion type noble-metal iron carbon filler are arranged on the stainless-steel porous filtration plate from top to bottom, the filler is composed of a plurality of specially-prepared steel plate single bodies through mutual socket connection via slots, the slots are arranged at one side of each specially-prepared steel plate single body, and the width of each slot is same to the thickness of the specially-prepared steel plate single body. The insertion type noble-metal iron carbon filler of the reactor can slowly uniformly precipitate various metal metastable ions which are uniform and not easy to lose. The filler truly realizes no passivation, no obstruction and no demand of replacing, and only need maintaining for 1-3 times every year, and the maintenance time each time is about 4 h. COD removal rate is high, water secondary pollution is not caused, and the sewage removal efficiency is improved by 20%-30% compared with that of a common iron carbon micro-electrolysis technology.

The invention relates to a preparation method for an anti-slip coating of a floating clamp. The preparation method comprises the following steps that sand-blasting roughening treatment is conducted ona working face of the floating clamp with brown fused alumina, metal ceramic powder is sprayed on the surface of a base body of the working face of the floating clamp with adoption of a supersonic flame spraying technology, the anti-slip and abrasion-resistant coating is prepared, and sprayed workpieces are wrapped with asbestos and are placed in air for natural cooling. According to the preparation method for the anti-slip coating of the floating clamp, defects which exist in a previous dovetail groove structure are overcome; metal ceramics are used as spraying materials, commercial powder can be directly purchased and used for the spraying materials, quality of the coating is higher, the service life is longer, spraying efficiency is high, and cost is low; and the heat influence on thebase body of the floating clamp in the spraying process is small, and texture and the shape of the base body are not changed.