36results about How to "Same diameter" patented technology

A drum for a brush roller comprised of a plurality of arcuate shaped segments with circumferentially projecting shoulders at their ends. The shoulders have outer edges that contact the adjacent segments and have respective inwardly and outwardly facing surfaces which in adjacent segments overlie and are attached together. Each segment has radially spaced double walls with sufficient rigidity and has reinforcement. The outward side of each segment is provided with a plurality of protruding beams defining U-shaped channels between them. An axle includes the drum with end plates and projecting shafts at each end. Also, a method of assembling the drum wherein the edges of the shoulders are brought against adjacent segments and the shoulders have their respective inwardly and outwardly facing surfaces overlying and fastening elements extend through the shoulders.

The invention discloses a riveting pressure detection device, which is characterized in that it includes a laser sensor arranged on a fixed frame at the riveting station, the laser light emitted by the laser sensor points to the position of the rivet to be riveted, and the fixed frame There is also a sensor for detecting the height of the riveting point of the rivet after riveting, and the laser sensor and the sensor are both connected to a control unit. The riveting detection device of the present invention uses a laser sensor to detect whether the rivets are complete before riveting, and then starts riveting after they are complete. If there are no rivets, the workpiece will not be riveted, and the workpiece will be automatically transferred to the next step by the control device. Work station, re-enter the riveting process after the rivet is loaded, reducing the generation of waste products. After riveting, the height sensor is used to detect whether the height of the riveting point of the rivet is standard, so as to ensure that the diameter of the riveting point is consistent and the quality of the riveting product is guaranteed.

A spark plug designed for fitting in tight spaces of an engine compartment is disclosed. The spark plug has a conductive terminal attached to one end of a flexible central electrode and has a ceramic insulator partially encasing the flexible central electrode. The part of the flexible central electrode between the ceramic insulator and the conductive terminal is encased in a flexible insulator. The flexible part of the central electrode may be bent away from the axis of the ceramic insulator accommodating both installation and servicing of the spark plug in tight spaces.

An apparatus for simultaneously pulling and twisting a cylindrical extrudate as a whole into a helical configuration, that is, a cylindrical configuration that, as a whole, has longitudinal and circumferential vector components. The apparatus is adapted to act on a solidified extrudate by causing it to be pulled downstream in the direction of its longitudinal axis while simultaneously being rotated about its axis. A circumferential twisting and a downstream pulling are simultaneously applied to a cooled and solidified extrudate. This is accomplished with a single piece of apparatus as shown. Thus, by twisting the solidified extrudate downstream both a circumferential and an axial component are imparted to the solidified extrudate. This, in turn, imparts a longitudinal and a circumferential movement to the molten extrudate as it emerges from an extruder die before it is fully solidified. The thus twisted molten extrudate is the cooled and solidified in its twisted condition.

The invention discloses a method for modifying a lithium battery diaphragm by using temperature-resistant macromolecules and a corresponding lithium battery diaphragm. The method comprises the steps of fully mixing and stirring a required temperature-resistant macromolecular material and an organic solvent to prepare a precursor solution with a certain mass fraction; cutting the lithium battery diaphragm to be modified, and fixing the cut lithium battery diaphragm on an electrostatic spinning spraying device; adjusting parameters such as the voltage of the electrostatic spinning spraying device, the rotating speed of a roller, the solution injection speed and the distance between a high-pressure needle head and a roller collecting device, and electrostatic spraying or spinning the precursor solution onto the lithium battery diaphragm; and turning off the electrostatic spinning spraying device at the arrival of the required time, flattening the lithium battery diaphragm, and carrying out vacuum drying to obtain the modified lithium battery diaphragm. The modified diaphragm provided by the invention can greatly improve the electrochemical performance and safety performance of the lithium metal battery.

The invention relates to the technical field of riveting and assembling, particularly discloses a pressing and riveting positioning tool for a head-free rivet and a using method of the pressing and riveting positioning tool. The positioning tool comprises a base. A spring base is installed on the upper portion of the base. The spring base is fixedly connected with the base through a clamp spring.Two ends of the spring are limited by the bottom end of the base and the spring base respectively. The method comprises the following steps 1) of calculating the outer extension quantities of the head-free rivet; 2) of selecting a matched gasket; 3) of fixing a riveting positioning tool; 4) of adding a head-free rivet; 5) of controlling the riveting positioning tool to be in place; and 6) of carrying out riveting. The pressing and riveting positioning tool is suitable for the pressing and riveting of the head-free rivets. The outer extension quantities of the two sides of the head-free rivet in the initial state and the riveting process can be consistent through the symmetrically-arranged riveting positioning tool, so that the diameter and height of the upsetting heads on the two sides areconsistent after the head-free rivet pressing riveting is completed.

The present invention discloses process and reactor for preparing fibrous light calcium carbonate. The preparation process includes the following steps: heat the mixture of 1-5 % water slurry of Ca(OH)2 and MgCl26H2O in 2-4 times weight of Ca(OH)2 to 80-95 deg.C, carbonizing reaction of the slurry in a horizontal strip reactor and the introduced CO2 gas through one gas distributing member to carbonize the Ca(OH)2 in the slurry into fibrous calcium carbonate, and filtering and washing the effluent to obtain the fibrous light calcium carbonate. The said process has identical retaining time of Ca(OH)2 slurry inside the reactor and is favorable to the growth of fibrous light calcium carbonate to obtain fibrous light calcium carbonate in homogeneous size distribution.

The invention belongs to the technical field of well drilling and specifically relates to a rotary driving and pushing mechanism for a well-drilling drill column. The rotary driving and pushing mechanism comprises a drill rod fixing mechanism, a driving motor, a pushing hydraulic rod, a hollow driving rotary shaft, a drill rod connection structure, a hydraulic rod fixing support and drill rod bodies. The driving motor is fixed to the hydraulic rod fixing support through the pushing hydraulic rod. Stretching-out and drawing-back of the hydraulic rod can drive the driving motor to move up and down. A rotary shaft of the driving motor is the hollow driving rotary shaft. The hollow driving rotary shaft can drive the drill rod bodies to rotate and move up and down through the drill rod fixing mechanism. The two drill rod bodies are connected together through the drill rod connection structure. The designed drill rod connection structure and the drill rod fixing mechanism are organically combined, so that the connection and driving functions of the drill rod are achieved. In addition, the drill rod connection structure is compact in structure, so that the effect that the diameter of the connection position is the same as that of the drill rod bodies can be ensured, and damage to a well drilling face due to a too large drill rod connection structure is avoided. The whole mechanism has a certain practical effect.

The invention relates to a fan coil forming machine comprising a fixing base, mounting blocks, pushing air cylinders, a winding device and abutting devices. The mounting blocks are mounted at the rearend of the fixing base in a bilateral symmetry manner, the pushing air cylinders are mounted at the lower ends of the mounting blocks, the winding device is mounted in the middle of the upper end ofthe fixing base, and the abutting devices are symmetrically mounted at the lower end of the fixing base and the winding device. According to the fan coil forming machine, a spiral groove is formed inthe outer wall of a positioning column of the winding device, one end of a manufactured coil pipe is fixed in the spiral groove through a fixing pipe, the wound and formed coil pipes are prevented from moving up and down, the wound and formed coil pipes abut against one another in sequence through clamping blocks of the abutting devices, and when the coil pipes are completely wound and formed,theclamping blocks move towards the middle to extrude and form the coil pipes, so that it is guaranteed that the winding diameters of the coil pipes are the same, and gaps between the coil pipes are thesame.

The invention belongs to the technical field of coating a rubber layer outside a steel wire, and discloses a steel wire gluing structure for a tire. The structure comprises an unwinding roller, a gluing piece and a winding roller which are arranged in sequence, and the structure further comprises a driving piece for driving the winding roller to rotate; the gluing piece comprises a gluing block, a guide-in hole, a gluing hole and a guide-out hole which are coaxial are sequentially formed in the gluing block in the direction facing the winding roller, the diameter of the guide-out hole is larger than that of the guide-in hole, and the diameter of the gluing hole is larger than that of the guide-out hole; a glue inlet hole which communicates with the gluing hole is further formed above the gluing block, and an extrusion piece which communicates with a glue inlet hole is further fixed on the gluing block; and a limiting ring is arranged at one end, communicates with the gluing hole, of the guide-in hole, and a rubber ring is arranged on the inner wall of the limiting ring. The problems that in the prior art, the opposite sides of an upper gluing block and a lower gluing block are coated with rubber, then a steel wire penetrates through the space between the upper gluing block and the lower gluing block to complete gluing, the rubber is prone to being unevenly distributed on the outer wall of the steel wire, and the using effect of the steel wire on a tire is affected are solved.

The invention discloses a plastic crushing, mixing and granulating all-in-one machine with a hybrid self-removing function. The machine structurally comprises a sundry cylinder, a discharging hopper,a transmission motor, a bottom frame, a pressure device, a speed reducer, wherein the speed reducer is vertically welded to the right end of the upper portion of the bottom frame, the transmission motor is vertically welded to the left end of the upper portion of the bottom frame and is in transmission connection with the speed reducer, mixture of metal and plastic product is placed in an inclinedbucket for melting, and when the temperature reaches a melting point of the plastic product, the mixture stops being added, so that the metal is left so as to be removed and recycled by the removed columns, the plastic product is changed into molten liquid to be prepared for cooling and granulating, energy wastage is avoided, the plastic product has high recovery rate, in a round upper ring and alower ring, round particles can be shaped, fixed space ensures the uniform size of the plastic particles, a cutting handle can perform point-to-point cutting, and a row of the cutting handles carriesout cutting at the same time, so that the size of the plastic particles is equal while the overall is higher, and the produced plastic particles are higher in quality.

The invention discloses a flame and flue gas integrated spectrum recognition and analysis platform which comprises a combustion chamber, a combustor is arranged in the combustion chamber, an outlet in the upper end of the combustion chamber is communicated with a flue gas exhaust pipeline, and an outlet of the flue gas exhaust pipeline is communicated with a flue gas treatment device; a first observation window is arranged on the combustion chamber, a first infrared spectrometer is arranged at the position right opposite to the first observation window, and the first infrared spectrometer is electrically connected with a first computer; a second observation window is arranged on the smoke exhaust pipeline, a second infrared spectrometer is arranged at the position right opposite to the second observation window, and the second infrared spectrometer is electrically connected with a second computer; the platform further comprises a smoke dust and flue gas tester and a particulate matter collector, and the smoke dust and flue gas tester and the particulate matter collector are respectively communicated with the smoke exhaust pipeline through sampling pipes. According to the invention, the whole process of releasing the smoke generated by the combustion flame is monitored, and finally, through coupling of the flame and the smoke, the relationship between the generation of the flame and the release of the smoke is explored as a basis for verifying a fire inversion model.

The invention relates to the technical field of transplanting equipment, and discloses an agricultural product transplanting device. The device comprises a placing plate, a lifting hydraulic cylinderand a motor, two side plates are fixedly connected to the lower surface of the placing plate, rotating shafts are movably connected to the inner walls of the two side plates, and wheels are installedat the two ends of each rotating shaft. The side faces of the two wheels are each provided with a plurality of sections, and one end of the upper surface of the placing plate is movably connected witha support through a bolt. According to the agricultural product transplanting device, crop cannot be smoothly thrown into pits by the transplanting device, so that the crop transplanting efficiency of the transplanting device is reduced, the advancing distances of the wheels each time can be equal through the combined arrangement of the wheels and the sections, and the problems that due to different advancing distances of the transplanting device each time, the transplanting device cannot smoothly put agricultural products into the pits through a putting cylinder, the agricultural product transplanting efficiency of the transplanting device is reduced, and the workload of a user is increased are effectively solved.