20results about How to "Reduce rolling friction" patented technology

The application relates to a vacuum smelting furnace feeding lifting mechanism, which comprises a feeding chamber and a lifting device arranged at the upper end in the feeding chamber. The lifting device comprises an electric hoist, the electric hoist is provided with a chain, the end of the chain is provided with a hook, the inner side wall of the feeding chamber is provided with a rectangular frame, the rectangular frame is internally provided with a horizontally-sliding mounting rack, the front end of the mounting rack is provided with a guide plate, the outer side of the rectangular frame is provided with a horizontal moving mechanism for driving the mounting rack to horizontally move, the guide plate is provided with a through hole for the chain to pass through, and the hook is located below the guide plate. Through the combined motion of horizontal movement and vertical lifting, the hook is actively deviated from the position directly below the lifting lug, and manual pulling of the inclined hook is not needed.

The utility model belongs to electromechanical equipment technical field especially relates to a kind of electromechanical equipment surface polishing device, including polishing machine main body, the front end of polishing machine main body is fixedly installed with polishing head, dust hood is movably installed below the polishing head, the side surface of dust hood is equipped with air pipe for connecting fan, the inside of the polishing machine is equipped with buffer mechanism.The electromechanical equipment surface polishing device, dust removal mechanism is matched by fan, dust hood, rubber ring and spring one, adsorbs dust, enhances sealing, adapts to different surface, solves dust pollution and other problems;Buffer mechanism uses the floating design of spring two to unload force, reduces impact force, reduces polishing wheel wear, protects equipment, while the setting of ball in polishing machine reduces the friction between components, improves operating stability and smoothness while extending the service life of equipment.

The utility model discloses a special furnace end for a commercial fuel oil pot furnace, which comprises a furnace end seat, a placing cavity is arranged on the end face of the furnace end seat, an ignition cover is integrally formed on the end face of the furnace end seat, an upper flame arrester, a lower flame arrester and a flame distributor are arranged in the placing cavity, and a rotating mechanism is arranged in the ignition cover. The outer walls of the upper and lower flame arresters are cover bodies, annular flanges are integrally formed on the attached edge surfaces, and the rotating mechanism is used for driving the upper flame arresters to rotate relative to the positions of the lower flame arresters. By means of meshing transmission of the gear and the annular gear disc, the upper slow fire device is driven to rotate relative to the lower slow fire device, the overlapping area of the first fire outlet hole and the second fire outlet hole is dynamically adjusted, accurate control over the flame jetting amount is achieved, and compared with a traditional furnace end, the furnace end can stably output slow fire needed by slow stewing with small fire, and the energy consumption is reduced. The cooking liquor is effectively prevented from boiling and overflowing or food materials are prevented from being locally overheated and scorched, and the cooking quality of soup cooking and porridge cooking is remarkably improved.

This invention belongs to the field of fiber optic connector technology and discloses a high-return-loss fiber optic connector and its manufacturing method. The connector includes a mounting sleeve with an inner cylinder inside. An outer cylinder is threaded onto the inner cylinder. A positioning ferrule is located inside the inner cylinder, and an optical fiber cable is located inside the positioning ferrule. A spring is located on one side of the positioning ferrule. A mounting base is threaded onto the inside of the mounting sleeve. This invention uses a locking lever to simultaneously engage the inner cylinder and the mounting sleeve, achieving anti-loosening positioning of multiple components. When the anti-loosening mechanism is triggered, the rotating ring synchronously drives the clamping plate to clamp the optical fiber cable. External tensile force is directly borne by the clamping mechanism and is not transmitted to the positioning ferrule. The overall structure has strong linkage, effectively preventing axial movement and circumferential rotation of the positioning ferrule, ensuring the mating accuracy and return loss stability of the positioning ferrule, and significantly improving the connector's tensile and vibration resistance.

A turbine type flow sensor is provided with a main water pipe, the upper end and the lower end of the main water pipe are closed, so that a metering cabin is formed in the main water pipe, a turbine is arranged in the middle of the metering cabin, a magnet is arranged in the turbine, and a water inlet pipe transversely communicated with the upper portion of the metering cabin and a water outlet pipe transversely communicated with the lower portion of the metering cabin are arranged on one side of the main water pipe. The other side of the main water pipe is provided with a detection circuit matched with the magnet; a first conical groove located above the turbine and a second conical groove located below the turbine are formed in the metering cabin, and the first conical groove and the second conical groove are coaxially aligned; the upper end of a rotating shaft of the turbine forms a first conical part with the taper smaller than that of the first conical groove, and the lower end of the rotating shaft of the turbine forms a second conical part with the taper smaller than that of the second conical groove. The rotating shaft of the turbine always takes the cone top of the first cone part and the cone top of the second cone part as a supporting point, the rotating friction is greatly reduced in a point contact mode, the rotation starting of the turbine is accelerated, the stable rotating speed is achieved, and the response speed and the detection precision of flow detection are improved.

This utility model relates to the technical field of concrete temperature control devices, and in particular to a rotary spraying device for concrete temperature control. It includes a support frame, within which a cross seat is fitted. Multiple connecting rods are located within the support frame, with ball heads fixedly connected to the ends of the connecting rods. The ball heads at the ends of the connecting rods are rotatably connected to the cross seat. A spraying assembly is mounted on the other end of each connecting rod. A rotating frame is slidably connected to the outer wall of the connecting rods, with both ends of the rotating frame rotatably connected to the support frame. A screw is rotatably connected to the inner wall of the cross seat. In this device, rotating a knob drives the screw to rotate. Since the screw sleeve is fixed to the support rod and cannot rotate, the screw drives the cross seat to rise and fall axially. When the cross seat rises and falls, the ball heads push the connecting rods to rotate around the rotating frame, thus adjusting the tilt angle of the spraying assembly to adapt to concrete components placed in different positions. This ensures that the entire area where the concrete component is placed is sprayed, completely solving the problem of incomplete coverage in traditional devices.

The utility model provides a kind of ammonia distillation wastewater cooling equipment, belong to ammonia distillation wastewater cooling technical field, including, cooling shell, the cooling shell is cylindrical, cooling shell is used for the cooling main body of ammonia distillation wastewater;Positioning drive assembly, the positioning drive assembly is installed at the top of cooling shell, the positioning drive assembly includes support and drive unit, the drive unit is installed on support;Waste water transmission component, the waste water transmission component is vertically installed in cooling shell from top to bottom;Water replenishment component, the water replenishment component is installed in the side of cooling shell;Discharge pipe, the discharge pipe is installed in the bottom of cooling shell middle, valve one is installed on the discharge pipe.Besides the utility model solves the problem that ammonia distillation wastewater is relatively stationary when cooling and cold water is slowly self-heat pipe position to spread outside for the heat absorption of waste water, low efficiency and heat energy is easy to waste.

The utility model relates to false tooth bridge technical field discloses an easily connected and adjusted false tooth bridge, including gum, the inner wall top of gum is fixedly connected with bridge mechanism, bridge mechanism is used for connecting a plurality of false tooth, the outer wall top of bridge mechanism is fixedly connected with support mechanism, support mechanism is used for supporting fixed false tooth, the outer wall top of gum is fixedly connected with support subassembly, bridge mechanism includes positioning post, the inner wall top of gum is fixedly connected in positioning post, the outer wall middle part of positioning post is rotatably connected with connecting rod. In the utility model, false tooth bridge is composed of gum, bridge mechanism, support mechanism and support subassembly, in bridge mechanism, positioning post is fixed in gum inner wall, it is rotatably connected with connecting rod, can swing and adapt angle deviation, this bridge is applicable to multiple tooth loss repair and implant angle correction, reduces the operation difficulty, guarantees the connecting strength.

This application relates to the field of photovoltaic installation technology, providing a robotic arm anti-deviation structure and a robotic hand. The robotic arm anti-deviation structure includes a double-ended bolt with oppositely oriented threads at both ends; a rotating shaft passing through one end of the robotic arm and two side plates oppositely positioned on both sides of the robotic arm, allowing the robotic arm to rotate relative to the side plates via the rotating shaft; a fixing member for connecting the double-ended bolt and the rotating shaft, the fixing member having a screw hole and a insertion hole, the axis of the screw hole being parallel to the axis of the insertion hole; one end of the double-ended bolt is threadedly connected to the robotic arm, and the other end of the double-ended bolt is threadedly connected to the fixing member through the screw hole; the end of the rotating shaft is inserted into the insertion hole and abuts against the fixing member, allowing the fixing member to rotate around the rotating shaft via the insertion hole. The robotic hand includes the aforementioned robotic arm anti-deviation structure. This application has a simple structure and ingenious design, which can limit the relative movement between the robotic arm and the base, prevent the robotic arm from deviating, reduce the impact on the positioning accuracy of the robotic arm's end effector, and ensure installation or handling accuracy.

This utility model discloses a swinging moxibustion head for a moxibustion device, comprising: a support frame, on which a swinging head component is disposed, and on which a head shell is fixedly disposed; the swinging head component includes a fixing component fixedly connected to the swinging head component, a gear one fixedly connected to the bottom end of the fixing component, a bearing penetratingly connected to the bottom end of the gear one, a connecting seat fixedly connected to the support frame, the connecting seat being inserted into the fixing component, an mounting plate fixedly connected inside the connecting seat, the bearing being embedded in the mounting plate, a motor fixedly connected to the bottom end of the mounting plate, and a gear two fixedly connected to the output end of the motor, the gear two meshing with the gear one; in this utility model, the regular swinging of the head shell is achieved through the meshing of the gear one and gear two in the swinging head component and the motor drive, improving the automation of moxibustion treatment; the T-shaped structure of the gear one, in conjunction with the bearing, reduces rotational friction and ensures smooth swinging.

The utility model discloses a kind of hoe type film mulching hole drill, comprising: tractor and hole opening and seeding assembly, tractor is provided with power output shaft, hole opening and seeding assembly includes: assembly installation frame, one side is provided with the transmission gear box being connected with power output shaft, transmission gear box is detachably connected with tractor by universal shaft;Film mulching device, set in the front lower part of assembly installation frame;Multiple hole opening and seeding mechanism, transverse arrangement is set in the middle part of general frame body, and hole opening and seeding mechanism includes the transmission shaft being connected with the output end of transmission gear box and seed guiding interface;Multiple seed bin device, lower end is provided with the discharge port being communicated with seed guiding interface, and seed bin device is used to regularly, quantitatively to hole opening and seeding mechanism inside seed is put in.The utility model realizes film mulching, film pressing, hole opening, precision seeding integrated continuous operation.

This invention provides a combined wire holder, including a base, a mounting assembly, a winding drum, and a protective mechanism. The mounting assembly is fixedly mounted on the base, and the winding drum for storing wires is movably mounted on the mounting assembly. The protective mechanism is mounted on the base and connected to the mounting assembly to ensure the winding drum can properly store and receive wires. The mounting assembly includes a first frame and a second frame. A rotating shaft is fixedly mounted in the middle of the winding drum, and both ends of the rotating shaft are rotatably mounted on the first frame and the second frame, respectively. This invention can prevent wires from slipping or falling during winding, ensuring neat and orderly winding and improving the quality of wire storage.

This invention relates to a two-dimensional electro-hydraulic servo valve driven directly by an eccentric shaft motor, comprising a spool valve assembly, a motor fixed to the top right side of the spool valve assembly, and a fork fixed to the right end of the valve core inside the spool valve assembly. The output shaft of the motor is an eccentric shaft, which is inserted into the valve body of the spool valve assembly, and the end of the eccentric shaft is embedded in a spherical bearing. The outer spherical surface of the spherical bearing is fitted into a groove on the upper part of the fork. This invention allows axial displacement caused by valve core rotation, preventing valve core jamming; it can generate a large valve core torque with a small torque input, exhibiting high response and long lifespan; the motor and linear displacement sensor are plug-in, facilitating installation.

The utility model discloses a front and rear drive pneumatic transfer case assembly of a wire hanging gearbox. The front and rear drive pneumatic transfer case assembly comprises a gearbox body, a shell, an input shaft main body, an intermediate gear, an intermediate shaft, a first intermediate gear, a second intermediate gear, an intermediate spline shaft, a drive gear, a rear drive output shaft, a front drive output shaft and a front drive separation sleeve. The gradient gear set is arranged in the gearbox body, and multi-stage speed change is achieved through axial linkage of the gradient gear set and the double-gear gears; a high-low gear sliding gear sleeve and a front driving separation sleeve are arranged in the shell, and a pneumatic shifting piece controls switching of driving modes; the input shaft main body adopts a nested structure of a main shaft I and a main shaft II and is combined with a deep groove ball bearing for supporting, so that friction loss is reduced; and the driving gear realizes quick conversion between rear drive and four-wheel drive through the nested output shaft. The multi-speed-change pneumatic drive device is compact in structure, integrates a multi-speed-change function and a pneumatic drive separation function in a limited space, and integrates high efficiency, reliability and environmental adaptability.

The utility model relates to motor technical field, concretely is a kind of shielded pole motor for water pump, including connecting plate, motor mechanism, water pump mechanism and connecting support mechanism, the motor mechanism is fixedly connected in the inside of connecting plate, the motor mechanism includes fixedly connected in the inside of connecting plate machine.The utility model in the present application, when the running winding of motor is electrified to produce alternating magnetic field, short-circuit ring will induce current, the magnetic field produced by this current and the magnetic field produced by running winding interact, thereby producing rotating magnetic field, drive motor rotor rotation, bearing reduces rotating shaft rotation friction, improves transmission efficiency, wind wheel rotates under the driving of rotor, so that the heat generated by motor can be taken away with air convection, thereby dissipating to surrounding environment, effectively reduce motor temperature, cooperate with mesh cover, effectively improve the heat dissipation performance of motor, reduce motor operating temperature, prolong the service life of motor.

The utility model discloses a pressurizing shaft sealing device for a screw feeder, and relates to the technical field of sealing of material conveying equipment, the pressurizing shaft sealing device comprises a supporting frame, the top end of the supporting frame is fixedly connected with a feeding device, and the feeding device conveys materials in a rotating mode; the feeding device is matched with the leakage-proof device, the feeding device is fixed to the top end of the supporting frame, the auger is driven by the motor to rotate, efficient conveying of materials is achieved, in the leakage-proof device, pressure can be applied through a bolt, lubricating oil in a lubricating oil cavity lubricates and seals a rotating rod of the auger, rotating friction is reduced, abrasion is reduced, and material leakage is prevented. Meanwhile, the graphite packing, the graphite mud sealing material and the graphite mud pressurizing bolt are combined, the graphite packing is pressurized through the bolt, the wrapping and sealing effects of the graphite packing and the graphite mud sealing material on the auger rotating rod are enhanced, the sealing performance is further improved, and the purpose that the materials are prevented from leaking from the contact position of the auger and the sealing device is achieved.

The utility model discloses a barreled lubricating oil transfer device which comprises a bearing plate, a moving assembly is arranged at the bottom of the bearing plate, a conical plate is arranged at the front end of the bearing plate, a mounting groove is formed in the slope face of the top of the conical plate, and rolling rollers distributed at equal intervals are rotationally mounted on the inner walls of the two sides of the mounting groove. A containing groove is formed in the top of the bearing plate, an oil drum traction mechanism is welded to the top of the rear end of the bearing plate and comprises a fixing column, and a mounting hole is transversely formed in the outer wall of one side of the fixing column. The rollers are arranged on the slope face of the conical plate, rolling friction of the oil drum is reduced, loading and unloading can be completed by a single person in cooperation with traction of the self-locking winch motor, efficiency is improved, foam cotton is wrapped by the flexible hoop, friction force is increased, pressure borne by the oil drum is buffered, and abrasion or breakage of the surface of the oil drum is avoided. And the mounting groove communicates with the placing groove, so that movement of the oil drum is not hindered, the oil drum can be guided and limited, and deviation and falling of the oil drum in the traction process are avoided.

The utility model relates to the technical field of wind power generation equipment, in particular to a clutch type carbon brush slip ring device for cable twisting prevention of a wind generating set, which comprises an upper turntable assembly, a lower turntable assembly, a clutch mechanism, a slip ring structure and a carbon brush assembly, the clutch mechanism comprises a guide assembly and a shaft sleeve capable of moving axially, when the upper rotating shaft rotates by a certain angle, the upper rotating shaft is meshed with the shaft sleeve through the guide assembly, the shaft sleeve is meshed with the lower rotating shaft through the guide assembly, and a complete torque transmission path can be formed between the upper rotating shaft and the lower rotating shaft. The binding post is electrically connected with the carbon brush assembly through a flexible wire, the arrangement mode of the flexible wire allows relative rotation of the upper rotating disc assembly and the lower rotating disc assembly, and under the condition that a torque transmission path is not formed between the upper rotating shaft and the lower rotating shaft, the upper rotating shaft does not drive the lower rotating shaft to rotate when rotating. The carbon brush assembly and the slip ring structure are kept relatively static, so that rotation friction between the carbon brush assembly and the slip ring structure can be reduced, and maintenance frequency and cost are reduced.

The utility model discloses a two-pole one-way impeller rotor which comprises a rotor frame, a magnetic ring arranged on the rotor frame in a sleeved mode and an impeller arranged at one end of the rotor frame, and the impeller comprises an impeller seat arranged at the end of the rotor frame and a plurality of elastic blades arranged on the upper end face of the impeller seat in a circle. Each elastic blade comprises a fixed part fixed on the impeller seat and an elastic part which is connected with the fixed part and is separated from the impeller, and the impeller is provided with a positioning part which can be blocked by the elastic part when the elastic part deforms under the impact of water flow when the impeller rotates. According to the utility model, the blades are divided into the fixed parts and the elastic parts, the fixed parts are connected with the impeller seat, the elastic parts bend and extend in the direction far away from the center of the rotor frame and can elastically deform and displace when being impacted by water flow, and the elastic blades flexibly deform to absorb local impact load, relieve root stress concentration and reduce fatigue fracture risk; therefore, the rotor is large in lift, large in drainage flow, high in efficiency and long in service life.