49results about How to "Improve processing strength" patented technology

The invention relates to a split knotter which belongs to the field of agricultural mechanical equipment. A drive shaft is installed in a shaft hole I of a main installation frame; a rope clamping drive mechanism and a split drive disk mechanism are coaxially installed at both ends of the drive shaft; a cam swinging rod is installed on a shaft hole III of the main installation frame, and the cam swinging rod and the split drive disk mechanism form a cam mechanism; the rope clamping mechanism and a rope clamping right helical gear are coaxial and are installed on a shaft hole V of the main installation frame; a rope clamping left helical gear is installed on a shaft hole VI of the main installation frame; an olecranon intermittent gear and an olecranon tongue are axially connected with an olecranon shaft respectively and installed on a shaft hole II of the main installation frame; and the olecranon tongue and the main installation frame form a small cam mechanism. Key mechanisms of the invention are formed by combining split parts, thereby reducing the processing deformation of integrated parts and the manufacture and maintenance cost of a press baler, being beneficial to the adjustment of relative positions during assembly, overcoming the defect of replacing the whole part due to the damage of a structure, prolonging the service life of the knotter and enhancing the processing strength of the parts.

The invention discloses a communication equipment metal shell and a preparation method thereof. The communication equipment metal shell comprises a metal substrate, slits and a plastic support layer, wherein the plastic support layer covers at least one part of the inner surface of the metal substrate; the slits run through the metal substrate and do not run through the plastic support layer; and the section shapes of the parts, located on the plastic support layer, of the slits are one or more of an inverted cone, an arc shape, a rectangle and an inverted trapezoid. The slits of the communication equipment metal shell disclosed by the invention do not deform and the communication equipment metal shell has smooth consistency in appearance.

The invention discloses a scroll compressor. The scroll compressor comprises an upper support and an upper cover, wherein the upper support and the upper cover are connected. A movable scroll plate is arranged in the upper support and in the upper cover. A static scroll plate is coaxially arranged on the side, close to the upper cover, of the movable scroll plate. An elastic circular ring is coaxially arranged on the side, close to the upper support, of the movable scroll plate. The upper support is provided with an inner supporting part and an outer supporting part, wherein the inner supporting part and the outer supporting part are matched with the elastic circular ring. A suspended part is formed between the inner supporting part and the outer supporting part. A back pressure sealing groove is formed in the bottom face of the suspended part. A back pressure sealing ring tightly attached to the elastic circular ring is arranged in the back pressure sealing groove. A back pressure cavity and an air sucking cavity which communicate with the suspended part are formed in the upper support. An exhaust cavity communicating with the back pressure cavity is formed in the upper cover. A compression cavity communicating with the air sucking cavity and the exhaust cavity is formed between the movable scroll plate and the static scroll plate. The scroll compressor is sufficient and reliable in sealing effect, and the technology difficulty of a sealing structure of the scroll compressor is low.

The invention relates to a machining method for a small-diameter positioning pin hole. The machining method comprises the following steps that according to a first control signal, a pin hole to be machined is positioned in the designated position of a workpiece; according to a second control signal, a drill bit is controlled to carry out reaming operation at the positioning position; and according to a third control signal, the reamed pin hole is machined through helical milling. According to the technical scheme, the machining quality and strength of the pin hole are effectively improved, machining precision is improved, and meanwhile the surface roughness of the pin hole is effectively reduced.

The invention discloses a machining process of a small transmission gear shaft of a full-automatic roller washing machine; in the machining process, through once cold forging pre-forming and once cold forging gear extrusion, the continuity of gear forms at two ends of the small gear shaft can be very well satisfied and the machining precision and strength of a product are enhanced, so that the service life of the product is prolonged; moreover, material usage can be also reduced, the efficiency is increased and the cost is reduced.

The invention provides a plasma processing apparatus and a protection ring thereof. The plasma processing apparatus comprises the following parts: a processing cavity; a static sucker which is placed in the processing cavity and is applied to adsorb a wafer; a hollow protection ring which is provided on the static sucker in a mode of encircling the static sucker and supports the wafer with the static sucker together. The protection ring is provided on the static sucker and supports a wafer to be processed with the static sucker together. In a process of carrying out plasma processing on the wafer, a wafer back side pollution problem can be improved, and processing strength of the wafer can be increased. A dimension of the protection ring can be flexibly adjusted according to a diameter dimension of the wafer to be processed, and a same plasma processing apparatus can carry out plasma processing on wafers with a plurality of specification dimensions.

The invention discloses a cast-in excircle self-locking thread air cylinder sleeve. The cast-in excircle self-locking thread air cylinder sleeve comprises an air cylinder sleeve body; the air cylindersleeve body comprises an excircle thread surface and an inner circle working surface; a plurality of ring grooves distributed in an array form are formed in the excircle thread surface in the lengthdirection of the air cylinder sleeve body; each ring groove is of an inverted conical structure, the two sides of the bottom of the ring groove are provided with one-fourth arcs, the two arcs are oppositely arranged, the openings of the arcs face towards the interior of the ring groove, the height of the ring groove is H, the maximum width of the opening of the ring groove is L1, and the minimum width is L2; and the distance between every two adjacent ring grooves is L3. According to the cast-in excircle self-locking thread air cylinder sleeve provided by the invention, the multiple ring grooves are formed in the outer side of the air cylinder sleeve body, based on the shape of the ring grooves, the combining force between the air cylinder sleeve and a cylinder body is greatly improved, the self locking effect is achieved, the contact area between the air cylinder sleeve and the cylinder body is increased, and the heat dissipation effect is improved.

The invention relates to the technical field of medical detection, particularly to a urine detection test paper for reflecting the human fatigue degree, and a preparation method thereof, wherein the urine detection test paper contains thiol protease, sodium dihydrogen phosphate, water-soluble polythiophene, chloroauric acid tetrahydrate, sodium hydroxide and polyvinyl alcohol, and the surface of the urine detection test paper is coated with a chitosan/titanium dioxide composite film. The preparation method comprises: immersing filtration paper in the mixed solution of a solution A and a solution B, and covering the surface of the filtration paper with a chitosan/titanium dioxide composite film, wherein the solution A contains water-soluble polythiophene, chloroauric acid tetrahydrate, sodium dihydrogen phosphate and sodium hydroxide, and the solution B contains polyvinyl alcohol and thiol protease. According to the present invention, the prepared urine detection test paper has advantages of strong hydrophilicity, convenient operation and high detection sensitivity, and can adsorb and permeate urine protein.

The invention discloses a fluoroplastic product calender. The fluoroplastic product calender comprises a device main body, a heating electric furnace and a conveying device. The bottom end of the device main body is fixedly connected with a working platform, the middle part of the working platform is fixedly connected with a cutting device, the middle part of the working platform is tightly weldedwith a flattening wheel lifting column. The flattening wheel lifting column can adjust the height of a flattening wheel well, thereby changing the thickness of a rolled plastic product. By pressing an adjusting button, the flattening wheel can be raised and lowered, thereby changing the thickness of the rolled plastic product. The conveying device can transport the rolled plastic product to a safe position to avoid the collision between the rolled plastic product and a newly processed plastic product, thereby reflecting the safety of the plastic product calender. A transmission wheel can provide power to transport the rolled fluoroplastic product to a carrying area, embodying the high efficiency of the device, and is suitable for the use of the fluoroplastic product calender. The fluoroplastic product calender has broad development prospects in the future.

The invention discloses a full-automatic one-time milling device for a diesel engine body. The full-automatic one-time milling device comprises a base and a workbench, wherein the workbench is arranged in front of the base through a guide rail assembly, a machine body clamp is arranged on the workbench, the workbench is connected with a movable power source through a transmission assembly, milling power sources are arranged on two sides of the base and are connected with a milling rotating shaft, a plurality of milling cutters are arranged on the milling rotating shaft, the milling cutter comprises a large disc milling cutter and a small disc milling cutter, and the small disc milling cutter is positioned at the outer end part of the milling rotating shaft. According to the full-automatic one-time milling device, one-time synchronous milling finish machining is carried out on the multiple bearing seat assembly steps of a diesel engine body through the multiple milling cutters, and the machining precision and strength of the bearing seat assembly steps are improved; and the machining efficiency is high, the automation degree is high, the uniformity of machining quality is effectively guaranteed, and the overall quality of the diesel engine body is improved; and therefore, the engine runs more stably and reliably.

The invention discloses a three-dimensional polymer and a preparation method thereof, belonging to the technical field of inorganic chemistry. The three-dimensional polymer disclosed in the inventionhas a chemical formula of C30H22N4O8Cu2, and belongs to a monoclinic system. The invention discloses the preparation method for the three-dimensional polymer. According to the invention, through the design of a first stirring module, a second stirring module, a third stirring module and a fourth stirring module in a material mixing assembly, the single-mode stirring effect of traditional preparation equipment is changed into multi-mode stirring effect, and during stirring, the multiple stirring effects can be repeatedly and circularly carried out.

The invention discloses an all-carbon ceramic axle-mounted brake disc. The brake disc includes a disc hub and a plurality of friction discs which are coaxially piled up, wherein the disc hub is sleeved with the friction discs. The friction discs are interlocked and connected through connecting structures into a whole and the friction discs and the disc hub are also interlocked and connected through connecting structures into a whole; the friction discs are made from carbon ceramic composite materials and composed of heat dissipation reinforcement bars with the disc surfaces and the rear surfaces are arranged in the radial direction, the heat dissipation reinforcement bars between the piled-up friction discs make contact in a one-to-one corresponding mode, axial heat dissipation channels are formed in the two sides of the heat dissipation reinforcement bars, and communication grooves communicated with the axial heat dissipation channels on the two sides are formed between the heat dissipation reinforcement bars. The all-carbon ceramic axle-mounted brake disc has the advantages that the structure is simple, the heat dissipation effect is excellent, connection is reliable, maintenanceis convenient, and the weight is low, and reliable braking is ensured while the energy consumption and maintenance cost of a transport tool are reduced.

The invention discloses a cut stem preparation method capable of improving cigarette ash whiteness. The cut stem preparation method comprises the following steps: (1) carrying out elution treatment onraw material tobacco stems; (2) repairing the eluted tobacco stems by adopting glycerol so as to recover the processing resistance of the tobacco stems; and (3) removing residual glycerol on the tobacco stems, and shredding the tobacco stems to obtain the tobacco stem shreds. After the stem shreds for the cigarettes are added into the cigarettes for use, the ash whiteness of the cigarettes can beobviously improved by 15-30 units, the ash coagulation index is reduced by 1-2 units, the sensory quality of the cigarettes is slightly changed, potential safety hazards are avoided, and compared with a common process for improving the ash whiteness of the cigarettes through stem shred treatment (the breakage rate is about 10-20%), according to the method, the crushing rate can be controlled within 2-3%, and the production cost is greatly reduced.

The invention relates to an FRP(fiberglass reinforced plastic) anchor rod capable of bearing a high pretightening force and a manufacture method thereof. The anchor rod comprises a glass fiber yarn bundle rope-shaped rod body, bulk glass fiber yarns are twisted in a grouped manner to form glass fiber yarn bundles, and then are twisted in a sinistral manner to form the glass fiber yarn bundle rope-shaped rod body, thread grooves in the surface of the glass fiber yarn bundle rope-shaped rod body are wound by bulk glass fiber yarns which fill and level up the thread grooves, and after being bonded by a resin, the bulk glass fiber yarns are molded and cured. The bulk glass fiber yarns are twisted in the grouped manner to form several glass fiber yarn bundles, and then the glass fiber yarn bundle rope-shaped rod body is formed, the thread grooves in the surface of the glass fiber yarn bundle rope-shaped rod body are wound by the bulk glass fiber yarns which fill and level up the thread grooves, and then are impregnated with the resin, after the bulk glass fiber yarns are bonded by the resin, the rod body of the uncured anchor rod which is bonded with the glass fiber yarns is made to traverse a guide hole of a forming die head, and the uncured anchor rod is shaped into a dextral FRP anchor rod by means of an internal screw thread. By means of the sinistral winding manner of the glass fiber yarns, the tensile strength of the glass fiber yarns can be fully utilized, the torsional strength of the rod body is improved, the high pretightening force of the FRP anchor rod can be guaranteed, the problem that a relatively-large pretightening force cannot be applied to the FRP anchor rod can be well solved, and the usage effect of the FRP anchor rod is excellent.

The invention aims to provide a mud scraping process for a fluorescent lamp head. The mud scraping process comprises the steps that 1, material matching is conducted, specifically, welding mud is prepared according to process requirements, and the prepared welding mud is stirred fully until the welding mud has certain fluidity; and 2, mud scraping and smearing processing is conducted, specifically, the prepared and stirred welding mud is poured into a mud scraper, then the inner wall of an aluminum cap of the led lamp head is subjected to mud scraping and smearing processing, and smearing processing of the aluminum cap is conducted in a rotation mode. The uniformity of mud scraping is improved by improving the mud scraping process for the lamp head, the processing strength is improved, the influence of mud falling of parts on light transmittance performance is avoided, the yield is increased, and the production cost is reduced.

The invention provides a wave-shaped ball bearing retainer structure made of engineering plastics and a connecting method, a retainer comprises an annular upper retainer and an annular lower retainer, the annular upper retainer and the annular lower retainer are respectively provided with a semicircular ball pocket and a connecting part which are symmetrical to each other along the circular ring direction, and the connecting part of the upper retainer and the connecting part of the lower retainer are respectively provided with a cylindrical pin and a circular blind hole which are matched with each other; the top of the cylindrical pin is provided with a cone protruding outwards. The connecting method of the retainers comprises the steps that firstly, the balls, the upper retainer and the lower retainer are pre-assembled between the bearing inner ring and the bearing outer ring, the upper retainer and the lower retainer are pressed through a mold connected with an ultrasonic generating device, cylindrical pins are inserted into blind holes, and the ultrasonic generating device works in the pressing process; the cone accumulates energy to generate high temperature, so that the cylindrical pin and the blind hole are fused and welded into a whole. The retainer structure can be connected in an ultrasonic fusion welding mode, and compared with an existing engineering plastic retainer which is connected in a buckling mode, a riveting mode and the like, the machining precision and the retainer strength are effectively improved, and the machining efficiency is higher.