15results about How to "Guaranteed torque" patented technology

The invention relates to magnetic ring pressing equipment and a pressing method.The magnetic ring pressing equipment comprises a feeding translation mechanism, a raw material weighing and feeding mechanism, a centrifugal stirring mechanism, a cup cover tightening mechanism, a vacuumizing mechanism, a granulation mechanism, a magnetic ring pressing mechanism, a servo press mechanism and a baking mechanism which are sequentially arranged, and further comprises a first transfer robot and a second transfer robot; a first transfer platform and a second transfer platform are arranged between the first transfer robot and the second transfer robot, a first cup body grabbing tool is arranged on the first transfer robot, and a magnetic ring grabbing tool, a granulation extrusion tool and a second cup body grabbing tool are arranged on the second transfer robot; and the granulation extrusion tool of the second transfer robot is matched with the primary granulation tool and the secondary granulation tool to perform primary granulation and secondary granulation. The first carrying robot and the second carrying robot are used for carrying work, and automatic pressing of the magnetic ring is conveniently and rapidly achieved.

The invention relates to the technical field of printing machines, in particular to a winding drum thermosensitive self-adhesive label printing machine with a shutdown ink roller automatically disengaged and a using method thereof.The winding drum thermosensitive self-adhesive label printing machine comprises a winding roller and a printing assembly, the printing assembly is fixedly connected to the bottom end of the winding roller through bolts, and a drying assembly is fixedly connected to the inner side of the printing assembly; an ink cleaning assembly is installed on the inner side of the printing assembly, an ink removing assembly is rotationally connected to the inner side of the printing assembly, a tensioning assembly is fixedly connected to one side of the printing assembly, and a separating assembly is fixedly connected to the inner side of the printing assembly. The printing assembly comprises a shell frame, a water tank is fixedly connected to the right side of the shell frame, and a water pump is fixedly connected to the right side of the shell frame. A waterproof plate is fixedly connected to the inner side of the shell frame, an outflow opening is formed in the inner side of the rear end of the waterproof plate, and an inner groove supporting block is fixedly connected to the inner side of the lower end of the shell frame.

The utility model discloses refrigeration equipment with a rotating platform, and belongs to the technical field of biological experiment equipment. The refrigeration equipment with the rotating platform comprises a refrigerator, the refrigerator is provided with at least one refrigeration cavity, the refrigeration equipment further comprises a workbench slidably connected in the refrigeration cavity, the workbench is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with an overturning plate, and the overturning plate is provided with a positioning hole used for fixing a centrifugal tube; the magnetic frame is detachably mounted on the workbench and is arranged below the rotating shaft; according to the utility model, the workbench which is integrally designed with the refrigerator and can be pulled out or pushed into the refrigeration cavity is arranged, so that a centrifugal tube can be directly inserted into the positioning hole, and operations such as washing and the like can be completed by rotating and mixing the overturning plate and matching with the magnetic frame, so that the traditional operation needing to be transferred to an experiment is integrally completed; the transfer temperature fluctuation and sample pollution are avoided, and the convenience and high precision of an immune experiment are ensured.

The utility model discloses a structure for riveting a stud on a copper bar, which is used for riveting the copper bar and the stud, and comprises a base, the upper die part comprises an upper clamping plate and a riveting punch, the upper clamping plate is fixedly connected with the riveting punch, the upper clamping plate is connected with the base through a sliding block, and the upper clamping plate can do reciprocating motion in the first direction so that the riveting punch can do reciprocating motion in the first direction; the lower die part comprises a lower cushion corner, a lower seat plate, a lower knockout plate and a lower die plate, and the lower cushion corner is used for connecting the base and the lower seat plate; the bottom of the lower base plate drives the jigger pin to move in the first direction relative to the lower base plate through cooperation of an equal-height screw and a spring, the lower die plate is fixed to the top of the lower base plate, a lower die insert core is arranged at the position, at the position of a jigger hole, of the lower die plate in a penetrating mode, and an annular area at the top of the lower die insert core comprises an outwards-expanding arc edge. And the outer contour of the head part is matched with the outermost periphery of the arc edge. Through the structure, the copper bar can be efficiently riveted on the stud, and the riveting precision is high.

The invention discloses a mechanical vehicle power transmission assembly, and relates to the technical field of vehicle power transmission, the mechanical vehicle power transmission assembly comprises a frame, and a power device for providing power is fixed on one side of the frame; a transmission shaft, a transmission case, a front axle, a rear axle transmission and a continuously variable transmission are respectively mounted at the bottom of the frame, one end of the transmission shaft is in transmission connection with the rear axle transmission, and the other end is in transmission connection with the transmission case; the end of an output shaft of the power device is in transmission connection with an output wheel, the end of the transmission is in transmission connection with an input wheel, and the output wheel and the input wheel are in transmission connection through a belt. By means of the design of the transmission case, diversification of the agricultural vehicle can be achieved, secondary distribution of power is achieved under the condition that the running state of the vehicle is not affected, different agricultural auxiliary devices for cutting, pesticide spraying, ploughing, sowing and the like are matched, and diversified use modes of products are achieved.

The utility model discloses a torque-increasing square nut gasket structure, which belongs to the technical field of nut gaskets and comprises a gasket structure, a threaded hole is formed in the middle end of a pin and the middle end of a square nut sheet in a penetrating manner, the pin is in an inverted U shape, slots are formed in two sides of the lower end of the pin, and the square nut sheet is plugged into the top end of the interior of the pin. The positioning block is aligned with the positioning hole and pushes the positioning block to move towards one side of the square nut piece, the bevel tooth A is meshed with the bevel tooth B, the position of the positioning block is limited, the positioning block is installed at the side end of the square nut piece through the bolt, and during use and installation, the gasket structure and the bolt body are rotated into the threaded hole from the internal thread of the lower concave hole; after the threaded end of the bolt body is in threaded connection in the connecting hole of the plate, the nut is connected to the outer side of the bolt body in a sleeving mode, the nut is rotated into the lower concave hole to tightly press the pin and the square nut piece, and when the whole plate shakes, due to the fact that the positioning block is matched with the positioning hole and the bevel teeth B are meshed with the bevel teeth A, the torque of the gasket structure is increased.

This utility model relates to the field of cleaning machine technology, and more particularly to an overflow valve assembly tightening machine. It includes a worktable, a controller, a clamp fixed to the worktable for clamping a pump cover, and a tightening mechanism fixed to the worktable for tightening the overflow valve assembly onto the pump cover. The clamp includes a fixed plate, a clamping component fixed to the fixed plate for clamping the overflow valve assembly mounting hole on the pump cover, and a detachable positioning pin connected to the fixed plate for extending into the pump body mounting hole on the pump cover. The fixed plate has multiple pin holes for the positioning pin to extend into. The tightening mechanism and the clamping component are both electrically connected to the controller. This overflow valve assembly tightening machine has high processing efficiency and good adaptability.

The invention provides equipment for semi-automatically assembling an air cooling welding gun, and relates to the technical field of air cooling welding guns, the equipment comprises a gun head automatic locking station, a switch welding station, a thermoplastic mechanism, an automatic screw locking mechanism, an upper layer conveying belt and a lower layer conveying belt which are sequentially arranged from right to left, a gun head, a circuit board, a heat shrink tube and a cable are arranged on the circulation workbench, the conveying belt sequentially penetrates through the gun head automatic locking station, the switch welding station, the thermoplastic mechanism and the automatic screw locking mechanism from right to left, the gun head automatic locking station is used for screwing the joint of the gun head and the cable, and the thermoplastic mechanism is used for heating the heat shrink tube. By arranging the gun head automatic locking station, the torque of the joint of the gun head and the cable can be effectively ensured, the torque of a screw can be effectively ensured through the automatic screw locking mechanism, the stability of a product is improved, manual screwing-in of the screw is not needed, labor can be effectively saved, the labor intensity of workers is reduced, and the production efficiency is improved.

The present application provides a grommet and fastening assembly. The grommet includes a body portion, a head portion, and at least one resilient arm. Each of the at least one resilient arm extends from an inner surface of one of the first and second wall portions and is deflectable at least partially toward and away from the axis. The present application provides a portion of the contact surface of the grommet for contact with the fastener by providing a deflectable resilient arm. Deflection of the resilient arm outwardly can reduce the insertion torque for inserting the fastener into the receiving passage of the grommet. Also, the receiving passage formed by the resilient arm and the inner surface of the grommet can provide sufficient retention torque for the fastener after the fastener is installed in place in the receiving passage of the grommet. Thus, even if the overall size of the grommet is small, the grommet is not easily damaged, thereby ensuring that the fastener assembly securely connects the first and second components.

The invention discloses a switched reluctance motor control method based on direct instantaneous torque control, and relates to the field of motor control. The method comprises the following steps of: obtaining a torque difference value delta T according to the difference between a reference torque Tref and an actual torque T, and obtaining the state of a three-phase switch at the moment according to a conduction rule by the numerical value and the change trend of the torque difference value delta T so as to form a voltage vector; when the number of the obtained voltage vector is one, the voltage vector acts on a power converter of the switched reluctance motor in the next control period, when the number of the obtained voltage vector is two, a corresponding predicted torque is calculated according to the voltage vector, the predicted torque is compared with a reference torque, and the predicted torque is calculated according to the reference torque. And judging a vector needing to be acted according to a comparison result, and acting the vector on a power converter of the switched reluctance motor. According to the invention, the single-phase conduction region can be reduced, the torque ripple of the commutation region can also be reduced, and the effect is better under the dynamic condition.

The utility model discloses a steering limiter, a steering system and a road marking machine, the steering limiter is connected with the steering system of the road marking machine, the steering limiter is used for limiting the rotation angle of the steering system, and the steering limiter comprises a shell, a limiting device and a driving device, the transmission shaft is movably connected with the shell in a sleeving mode in the first direction, and the transmission shaft is in transmission connection with the steering system; the limiting shaft is movably connected with the shell in a sleeving mode in the second direction, the limiting shaft is in meshing transmission with the transmission shaft, and the first direction is perpendicular to the second direction; and the limiting part is arranged on the side, in the second direction, of the shell, the limiting part is connected with the limiting shaft in a sleeving mode, and the limiting part is used for limiting the rotation angle of the limiting shaft. According to the steering limiter, the steering system and the road marking machine, the steering precision and stability of the road marking machine can be effectively improved, and the operability of technicians is synchronously improved.

The utility model relates to the technical field of couplings, in particular to a high-precision safety torsion-limiting coupling which comprises a safety coupling body, the safety coupling body is formed by combining a limiting assembly and a transmission assembly which are arranged on the outer surface of a coupling body in a sleeved mode, and the limiting assembly comprises a radial tooth type shaft inner sleeve. An overload action body is movably installed at the end, close to the transmission assembly, of the outer surface of the radial tooth type shaft inner sleeve, an adjusting nut is spirally installed on the side, away from the transmission assembly, of the overload action body, and a dirty tight sleeve is embedded in the end, close to the adjusting nut, of the interior of the radial tooth type shaft inner sleeve. A plurality of sets of annularly-distributed balls are installed at the position, close to the overload action body, of the periphery of the outer surface of the radial tooth type shaft inner sleeve in an embedded mode. The impact of moisture and dust factors in the external environment on the fatigue life of the bearing can be overcome, the bearing can be conveniently lubricated, the fatigue life is prolonged, the torque is kept, and high safety precision is achieved.

The automatic bolt and nut pre-tightening device comprises a guide rail mounting plate, a base plate is arranged on the front side of the guide rail mounting plate, a horizontal plate is fixedly connected to the front side of the base plate, a first servo motor and a second servo motor are mounted on the horizontal plate, and a quick-change fixing plate is arranged at the lower end of the horizontal plate; a screw tightening assembly is arranged at the lower end of the quick-change fixing plate and comprises a shell arranged at the lower end of the quick-change fixing plate, and a lower sleeve is fixedly connected to the lower end of the shell. According to the equipment, screws provided with nuts can be taken away through a mechanical arm and then quickly screwed into mounting holes of a hub, after mounting, it can be guaranteed that the distance between the end face of each screw and the hub meets the requirement, and then the perpendicularity between bolts and the hub face can also be guaranteed; finally, the torque requirement of the pre-screwing screw and the nut can also be ensured; therefore, the mounting effect of the screw is ensured.

This utility model discloses a protective box for optical cable downleaders, comprising a first half-bottle and a second half-bottle, which are connected to each other. A first sealing component is provided between the upper openings of the first and second half-bottles, a second sealing component is provided between the walls of the first and second half-bottles, and a third sealing component is provided between the lower openings of the first and second half-bottles. A first semi-circular plate is connected to the upper opening of the first half-bottle, and a second semi-circular plate is connected to the upper opening of the second half-bottle. Semi-circular grooves are respectively formed on the inner sides of the first and second semi-circular plates. The first sealing component includes a sealing circular plate. The purpose of this utility model is to overcome the shortcomings of existing optical cable downleader protective boxes and provide an effective protection for optical cables.