14results about How to "Guaranteed meshing accuracy" patented technology

The invention relates to the technical field of prefabricated part production, and discloses a concrete prefabricated part pouring production line for a tunnel. The stirring assembly and the stirring barrel are arranged in a penetrating manner; the driving assembly is arranged in the stirring barrel, the driving assembly is mounted on the inner wall of the stirring barrel, and the driving assembly is connected with the stirring assembly; and the tiny stirring part is arranged in the stirring barrel. Through arrangement of the stirring assembly, especially cooperative cooperation of a first wedge-shaped column, a second wedge-shaped column, a limiting sliding block and a first spring, when stirring is started, an auxiliary circular plate rotates to promote the first wedge-shaped column to rotate along with the first wedge-shaped column and extrude the inclined surface of the second wedge-shaped column, and the first wedge-shaped column slides in a limiting sliding groove in cooperation with the limiting sliding block and elastic buffering of the first spring; the auxiliary circular plate is successfully driven to transversely reciprocate, so that the stirring rod is driven to realize reciprocating transverse stirring; the dynamic stirring mode greatly improves the stirring flexibility.

The utility model discloses a kind of lubricating devices for half self-grinding machine gear, including base and half self-grinding machine installed above it, including first shell, injection device, second shell, bull gear, pinion, oil receiving box, oil guide pipe, driving assembly and filter assembly;Bull gear is installed in one end of half self-grinding machine;Driving assembly is connected with pinion;Bull gear and pinion are engaged;First shell and second shell are respectively sleeved in the outside of bull gear and pinion;Injection device is installed at the junction of first shell and second shell;Oil receiving box is installed in the inside of base;The upper end of oil guide pipe is connected with first shell, and lower end is connected with oil receiving box;Filter assembly is connected with oil receiving box.The utility model's injection device is installed above bull gear and pinion engagement point, so that lubricating oil is injected to bull gear immediately after engaging and lubricating with pinion, waste oil is collected into oil receiving box by combining first shell, is filtered in filter assembly, is recycled, and reduce lubricating oil waste.

The utility model relates to the technical field of water turbines, and discloses a water flow regulator of a water turbine, which comprises a water inlet pipe, a water outlet pipe and a regulating mechanism arranged between the water inlet pipe and the water outlet pipe. The adjusting mechanism comprises a shell, an adjusting plate, a driving device and a controller; the two ends of the shell communicate with the water inlet pipe and the water outlet pipe correspondingly, and an adjusting cavity matched with the adjusting plate is formed in the shell. The adjusting plates are annularly arranged at equal intervals and rotatably arranged in the adjusting cavity, and the driving device is connected with the adjusting plates and used for driving the adjusting plates to rotate; the controller is electrically connected with the driving device and used for controlling operation of the driving device. A pressure sensor is arranged on the shell, second-level dynamic adjustment of water flow is achieved through sensor closed-loop control and a single-motor synchronous driving structure, and the response efficiency and stability of an adjusting system are improved.

The application relates to the technical field of inorganic compound equipment, in particular to a rotary kiln system for producing vanadium pentoxide, which comprises a rotary kiln body, a supporting mechanism is arranged on one side of the rotary kiln body, a sealing mechanism is movably installed on one side of the rotary kiln body, and a gas conveying pipe is connected to one side of the sealing mechanism; the rotary kiln system can be stably supported by the positioning rod, the rotating drum, the nut and the rollers, the rotating drum is movably sleeved on the positioning rod and is fixed and positioned with the nut, the rollers are distributed in a circumferential array mode at the bottom of the rotary kiln body, the roller is in contact with the rotary kiln body, the rotation of the rotary kiln body is supported through rolling friction, and the resistance is greatly reduced compared with sliding friction. Meanwhile, the rotating drum is matched with the positioning rod to limit the axial displacement of the positioning ring, the convex block is combined with the clamping groove to limit the radial displacement, and the effect that the device can stably support the rotary kiln body to rotate, reduce the running resistance and improve the stability of the supporting structure is achieved.

The utility model relates to the field of torsion limiter, especially one -way torsion limiter convenient to overhaul. Including driving shaft, driving shaft cover is equipped with copper ring, tablet, disc spring, fixed sheet, copper ring cover is equipped with first friction piece, sprocket and second friction piece, and sprocket both ends are respectively with first friction piece and second friction piece mutually cooperate, and tablet and second friction piece mutually cooperate, and disc spring and tablet are engaged, and fixed sheet and disc spring mutually cooperate, and driving shaft is connected with end cover, and end cover is connected with bolt, and bolt and fixed sheet resist, and driving shaft is connected with ratchet wheel, and sprocket rotatably connects with stand, and stand is connected with pawl, and sprocket detachably connects with vertical plate, and vertical plate is connected with spring no.

The utility model discloses a grinder for agricultural machinery gears, and belongs to the technical field of gear grinding. A base is included; the moving seat is slidably mounted at the top of the base; the mounting seat is mounted on the moving seat, and a gear is clamped in the mounting seat; the fixing frame is fixedly mounted on the base; the grinding block is mounted on the side, close to the movable seat, of the fixed frame; the driving mechanism is mounted on the fixing frame and connected with the grinding block, the gear is clamped through the mounting base, the angle of the gear is adjusted, so that the tooth gap of the gear directly faces the grinding block, the driving mechanism drives the grinding block to move back and forth, and the moving base drives the mounting base to gradually get close to the fixing frame. And therefore, the grinding block grinds the tooth side wall at the tooth gap, the tooth precision is guaranteed, and stable meshing of gears in the working process of the agricultural machine is guaranteed.

The utility model relates to the technical field of PEEK gear installation, and discloses an installation jig for PEEK gear precision gear hobbing, which comprises a working table, a processor is fixedly connected to the top end in the working table, a clamping mechanism is arranged at the bottom end in the working table, and a heat dissipation mechanism is arranged in the working table. An electric push rod is rotatably connected to the bottom end of the interior of the workbench, a connecting shaft is fixedly connected to the output end of the electric push rod, a rotating disc is rotatably connected to the top of the connecting shaft, three rotating shafts are rotatably connected to the bottom end of the interior of the workbench, and sliding rods are rotatably connected to the exteriors of the rotating shafts; a clamping wheel is rotationally connected to the side, away from the rotating shaft, of the sliding rod. According to the gear clamping device, when a gear is clamped, the electric push rod is started to enable the rotating disc to rotate through the connecting shaft, the three sliding rods rotate relatively through the rotating shaft, and the three clamping wheels gather relatively to clamp and fix the gear, so that the meshing precision of the gear is ensured, and the quality of the gear is improved.

The utility model relates to the field of laser cutting, in particular to a pneumatic double-gear anti-backlash mechanism which comprises a linear sliding rail and a sliding table, the linear sliding rail is located on the side of a helical rack, a fixed driving device and a gear anti-backlash device are arranged on the sliding table, the fixed driving device is provided with a driving gear, and the gear anti-backlash device is arranged on the gear anti-backlash device. The driving gear is meshed with the helical rack, the gear anti-backlash device is provided with a floating gear, the floating gear is meshed with the helical rack, and the meshing surface of the floating gear and the helical rack is opposite to the meshing surface of the driving gear and the helical rack. On one hand, too small gaps cause too large driving torque and decrease of servo control characteristics, and on the other hand, too large gaps cause poor precision of linear reciprocating motion.

The utility model belongs to the technical field of food processing, and discloses a food processing machine which comprises a stirring cup, a stirring piece installed in the stirring cup and a main machine installed above the stirring cup, a motor assembly for driving the stirring piece is arranged in the main machine, and the motor assembly comprises a motor and a reduction gearbox. An ultraviolet lamp and a lampshade covering the outer side of the ultraviolet lamp are further arranged in the main machine, ozone is generated in the lampshade through the ultraviolet lamp, a ventilation opening is formed in the bottom of the lampshade, an air outlet communicated with the ventilation opening is formed in the bottom wall of the main machine, and the air outlet is communicated with an inner cavity of the stirring cup. The lampshade is arranged on the outer side of the ultraviolet lamp, so that the ultraviolet lamp is prevented from being exposed, direct irradiation of ultraviolet rays to components in the host is avoided, and internal plastic parts are protected; according to the ultraviolet lamp, generated ozone is firstly concentrated in the lampshade, then escapes to the air outlet along the ventilation opening and flows to the inner cavity of the stirring cup from the air outlet, so that the generated ozone is prevented from being dissipated everywhere, concentration and flow direction guide of the ozone are realized, and the sterilization efficiency of the ultraviolet lamp is improved.

The utility model provides a gear assembly adjustment mechanism, include: base and install one servo drive unit and a plurality of gear assembly unit on the base, a plurality of gear assembly unit separate setting, each gear assembly unit includes detachable connection's rotation component and suction head subassembly, and suction head subassembly is used for utilizing negative pressure to suck gear, servo drive unit includes the servo motor, speed reducer and motion transmission mechanism who connects in proper order, motion transmission mechanism still is connected with a plurality of gear assembly unit's rotation component, servo drive unit is used for driving a plurality of gear assembly unit rotation to make the gear that is sucked by suction head subassembly rotates along with. Like this, can realize the automatic assembly of many gears, and greatly simplifies the assembly structure, can also reduce the difficulty of grabbing gear, and the assembly of compatible different specifications gear is also promoted, and the compatibility is improved.

The application discloses a high-precision straight stroke electric actuator with double-position positioning and relates to the technical field of electric actuators. A Hall sensor assembly is arranged corresponding to the rotor magnet steel of a driving motor; an output gear is fixedly arranged on a center rod and rotates synchronously; a first encoding gear is engaged with the output gear; a second encoding gear is engaged with the first encoding gear and has a tooth number difference with the first encoding gear; two magnetic angle sensors respectively sense the rotation angles of corresponding magnets, and the absolute rotation position of the center rod is calculated in combination with the tooth number difference. The application constructs a double-position positioning system, guarantees the dynamic response speed of the motor, eliminates the position error caused by the gap and wear of the speed reduction mechanism, improves the control precision and stability of the actuator, realizes the position information keeping without power supply or light source in the power-off state, and directly reads the current absolute position without recalibration after secondary power-on.

The utility model relates to a kind of pneumatic rack rotation-stopping mechanism, it is installed below rotating gear, including mounting seat, connecting rod base, rotation-stopping swing arm, cylinder and connecting rod;Mounting seat is fixed with interval with connecting rod base, and the upper portion of mounting seat is rotatably connected with the one end of rotation-stopping swing arm by swing arm pivot I, and V-shaped connecting rod mechanism is hinged between the other end of rotation-stopping swing arm and connecting rod base, rack, same with the modulus of rotating gear and can be engaged with rotating gear is installed on rotation-stopping swing arm, the lower portion of mounting seat is rotatably connected with the rear seat of cylinder by cylinder rear axle, and the end of piston rod of cylinder is hinged with the middle part of V-shaped connecting rod mechanism by fish eye joint.The utility model can utilize cylinder to drive rotation-stopping swing arm swing to make rack and rotating gear engage to realize the rotation-stopping of rotating gear, accurate positioning, easy operation, long service life.

The utility model discloses a spiral bevel gear pair which comprises a transmission shaft and a driven bevel gear, a driving bevel gear is arranged at one end of the transmission shaft, the driving bevel gear and the driven bevel gear are meshed with each other, the crossed axis angle of the driving bevel gear and the driven bevel gear is 90 degrees, and the vertex OAa of the pitch cone angle delta Aa of the driving bevel gear coincides with the vertex OBa of the pitch cone angle delta Ba of the driven bevel gear. The tip cone generatrix of the driving bevel gear is parallel to the root cone generatrix of the driven bevel gear at the meshing position, and the root cone generatrix of the driving bevel gear is parallel to the tip cone generatrix of the driven bevel gear at the meshing position. According to the spiral bevel gear pair, the tip cone generatrix of the driving bevel gear is parallel to the root cone generatrix of the driven bevel gear at the meshing position, the root cone generatrix of the driving bevel gear is parallel to the tip cone generatrix of the driven bevel gear at the meshing position, and the distances between the tip cone generatrix and the root cone generatrix are equal, namely, the tip clearance is constant, so that the tooth clearance at the small end is larger than that at the small end of the spiral bevel gear pair in the prior art; the phenomenon of'seizure 'caused by dislocation is not easy to occur, the service life is prolonged, and the failure rate is reduced.

The application discloses a special tool for controlling deformation of a drum gear inner tooth sleeve of a flat head sleeve and a heat treatment method, and comprises the following steps: A1, measuring the outer circle radius of a flat head sleeve to be treated and the inner hole radius of the flat head sleeve, and calculating the interference amount, wall thickness and height of a corresponding tool hoop according to the outer diameter of the flat head sleeve; A2, polishing the protruding part of the flat head sleeve and smearing solid lubricant on the surface; A3, preheating the hoop to 100-250 DEG C and nesting the hoop at the drum gear end of the flat head sleeve; A4, according to the repair process requirements of the flat head sleeve, entering a heat treatment furnace to perform stress relief heat treatment; A5, after the stress relief heat treatment is completed, taking out the flat head sleeve from the heating furnace and cooling to room temperature; and A6, after the cooling is completed, performing surfacing, machining, low-temperature tempering heat treatment and the like on the flat head sleeve. Through the accurate calculation of the interference amount, wall thickness and height of the hoop and the steps of preheating, nesting and heat treatment, the method can limit the deformation of the flat head sleeve in the heat treatment process.