18results about How to "Torque stabilization" patented technology

The invention discloses an externally-driven electric power-assisted endoscope operation part structure and an endoscope, and belongs to the technical field of endoscopes, the endoscope comprises an operation part structure, the operation part structure comprises an operation handle provided with a hand wheel and an endoscope body pipe steel wire traction mechanism, and the endoscope body pipe steel wire traction mechanism comprises a middle shaft and a driving wheel; a force sensor is arranged between the hand wheel and the driving wheel; the power assisting mechanism comprises a driving module provided with a driving motor, the driving module is arranged outside the operating handle and is connected with the operating handle through a hose, the driving motor is in transmission connection with the roller through an inhaul cable which is a steel wire rope, and the hose serves as an outer sleeve of the inhaul cable; the device further comprises a first measuring module and a second measuring module. According to the scheme, the influence of the power assisting structure on the size and the weight of the operating handle can be effectively reduced, and meanwhile the power assisting precision can be guaranteed.

The invention relates to the technical field of electric tools for mines, in particular to a mining explosion-proof handheld impact torque wrench which comprises an outer shell and an explosion-proof inner shell, a direct-current brushless motor is mounted on the upper portion of the explosion-proof inner shell, and the front end of a motor shaft penetrates out of the explosion-proof inner shell to be sequentially connected with a speed reducing mechanism and an impact mechanism. The impact mechanism comprises a power spindle, a striking block, a T-shaped shaft and an impact spring, the rear end of the power spindle is connected with the speed reducing mechanism, the T-shaped shaft is fixed to the front end of the power spindle, the front end of the T-shaped shaft extends out of the shell, the striking block sleeves the power spindle, grooves are formed in the connecting surfaces of the striking block and the power spindle, balls are movably embedded in the grooves, and the two ends of the impact spring abut against the striking block and the power spindle; an 8-shaped movable groove is formed in the front end face of the striking block, the T-shaped shaft comprises an output shaft and a striking anvil block, and the striking anvil block can rotate in the movable groove. The mining explosion-proof handheld impact type torque wrench can effectively solve the technical problems that an existing electric impact wrench does not have the explosion-proof performance and is small in torque.

The invention discloses a drilling machine power head speed change structure which comprises a shell, a top plate is arranged at the top of the shell, a first speed change device is arranged on one side in the shell, a second speed change device is arranged on the other side in the shell, a speed change bin is arranged above the second speed change device, a stabilizing bin is arranged below the second speed change device, and a partition plate is arranged between the speed change bin and the stabilizing bin. A hydraulic motor is arranged in the center of the rotating sleeve, a sleeve gear is arranged on the outer side of the middle of the rotating sleeve in a surrounding mode, and hydraulic sleeves are arranged at the upper end and the lower end of the rotating sleeve. The two-stage speed change structure has the beneficial effects that torque can be superposed or reduced through relative rotation, the torque change range is enlarged, meanwhile, speed change is more uniform and reliable through cooperation of the stepless speed change type structure and the hydraulic motor, meanwhile, stability of the output torque of the motor is guaranteed, and the service life of the motor is prolonged. The drilling machine has the advantages of a motor drilling machine and a hydraulic drilling machine.

The utility model discloses a kind of synchronous servo paw with protection, can realize high-precision synchronous action, while solving the deficiency existing in dustproof performance of existing servo paw. It includes paw main body, finger assembly and the driving assembly, synchronous transmission mechanism and dust cover installed in paw main body, finger assembly includes two fingers in left and right sides, synchronous transmission mechanism includes a pair of rack, a pair of finger slide plate and a pair of linear guide rail, the output end of driving assembly is equipped with driving gear, two racks are oppositely arranged in the front and back sides of driving gear, and correspondingly connected with two finger slide plates, two finger slide plates are correspondingly connected with two fingers, two finger slide plates are correspondingly slidably connected with two linear guide rails, driving gear is driven by engaging transmission with two racks, drives two finger slide plates to correspond along two linear guide rails sliding, and two fingers are opened and closed by two finger slide plates, dust cover is equipped with driving gear and two rack covers.

The invention relates to the technical field of roller bits, in particular to an equal-wall-thickness screw motor which comprises an equal-wall-thickness stator, the inner wall of the equal-wall-thickness stator is provided with a linear structure, and equal-thickness rubber is arranged on the linear structure. The engineering plastic is used for injection molding, and after molding, the strength is high, the hardness is high, and the bearing performance is high.

The utility model discloses a hardness detection device with compression function for photovoltaic production, including work table, the top fixed mounting of work table has four struts, four the top fixed mounting of strut has the top plate, the bottom fixed mounting of top plate has hydraulic telescopic link no.

The application discloses a grinding machine for water pump shaft production and relates to the technical field of water pump shaft production, and aims to solve the technical problem of insufficient functions of traditional grinding machines, comprising a track base; grinding assemblies are symmetrically arranged on the track base in a sliding mode; the grinding assemblies are in sliding fit with the track base through angle forming air cylinders; the grinding assemblies comprise primary rotating units; the primary rotating units are rotatably arranged on the track base through bearing seats; the primary rotating units are internally penetrated by secondary rotating units; the secondary rotating units are provided with a plurality of grinding units which are annularly and equidistantly distributed at the end portions of the secondary rotating units; the input ends of the plurality of grinding units are internally penetrated by tertiary rotating units relative to the secondary rotating units; the grinding units, the primary rotating units and the secondary rotating units form planetary transmission structures. The application is suitable for local precise finishing in the fine grinding stage, and achieves the technical purpose of switching between line contact coarse grinding and point contact fine grinding in two grinding modes in the same equipment and the same clamping.

The utility model discloses a paper bag detector, and relates to the technical field of paper bag detection equipment. The paper bag detector comprises a machine table, a first pulley, a second pulley, a tension sensor and a lead screw sliding table, the first pulley is installed on the machine table through a first installation base, the tension sensor used for detecting tension data is arranged at the side end of the installation base, and the second pulley is slidably installed on the lead screw sliding table through a second installation base. The lead screw is controlled through cooperation of the servo motor and the planetary reducer, the first pulley is rotationally installed on the first installation base, and the second pulley is rotationally installed on the second installation base. By arranging the two rotatable pulleys, the center of the paper bag handle is automatically corrected during testing, and uneven stress is prevented. The paper bag detector uses a lead screw sliding table, so that the precision is higher; the servo motor is used, so that the speed and the torque are more stable; the planetary reducer can effectively reduce the rotating speed and increase the output torque; all the structures are matched, so that no jitter problem during testing can be ensured.

The present disclosure relates to a hybrid vehicle and a coasting upshift control method, device and storage medium thereof, wherein the hybrid vehicle includes an engine and a front drive motor for providing power to the front axle, and the control method includes: determining whether the hybrid vehicle is in a coasting upshift state; when the hybrid vehicle is in a coasting upshift state, obtaining the charging torque required by the front drive motor; when the charging torque required by the front drive motor is greater than or equal to a first threshold, controlling the engine to increase the output torque. In this way, during the coasting upshift process of the hybrid vehicle, when the charging torque required by the front drive motor is greater than or equal to the first threshold, that is, the charging torque demand is large, the engine can be controlled to increase the output torque, that is, the engine can be controlled to gradually increase the torque to ensure the charging demand of the front drive motor, so that the front axle torque can be reasonably distributed, reducing the vehicle jerking, thereby ensuring the stability of the front axle torque and the torque stability of the entire vehicle during the shifting process.

The utility model belongs to the technical field of pesticide spraying, and particularly relates to a foldable spraying rod structure which comprises a base plate and a machine shell, a folding mechanism is arranged at the top end of the base plate, and a mounting mechanism is arranged at the bottom end of the base plate. According to the foldable spray boom structure, by arranging the folding mechanism and adopting the steering engine for driving, the foldable spray boom structure has the advantages that the torsion provided by the steering engine is stable and the arm of force can change along with different unfolding states when the foldable spray boom structure is unfolded. The steering engine is low in unit price and more economical and practical, the direction of the spraying rod can be adjusted after the spraying rod is unfolded, the spraying efficiency is improved, and the problems that an existing automatic unfolding type folding spraying rod provided in the background technology is mostly driven by an electric push rod, the electric push rod is high in unit price, the torque is unstable when the push rod is driven to be unfolded, and the spraying efficiency is poor are solved. And stable unfolding of the spraying rod is not facilitated. By arranging the mounting mechanism, the whole device can be quickly mounted, so that the practical performance of the device is improved, the device is also convenient to disassemble, and the mechanism is simple in structure and relatively easy to operate.

The utility model relates to the field of panel door, especially a double-panel fluorine-lined panel door with sealing air, which comprises a main body mechanism, an anticorrosion mechanism arranged around the main body mechanism, a guide mechanism arranged inside the main body mechanism, a transmission mechanism arranged at the upper end of the main body mechanism, and a sealing mechanism arranged at the upper end of the main body mechanism. The utility model prolongs the service life of the anticorrosion mechanism and the sealing mechanism extension device, solves the problem that the existing device adopts a single anticorrosion measure of corrosion-resistant metal material, which is expensive and may cause great economic loss due to the expansion of point corrosion to large-area corrosion perforation of duplex stainless steel or high-nickel-based alloy material over time.

The invention relates to the technical field of medical instruments, and provides a broken needle clamping system and a clamping method using the broken needle clamping system. Comprising a robot, the robot is a series-connection multi-degree-of-freedom mechanical arm, a clamping device is detachably installed at the tail end of the series-connection multi-degree-of-freedom mechanical arm and provided with a connecting cylinder, a blind hole is formed in the connecting cylinder, an annular limiting block is arranged in the blind hole in a 3D printing mode, and the annular limiting block is connected with the clamping device; the shape of the tail end face of the annular limiting block is matched with the shape of the first annular end face of the breaking end face of the breaking needle. The clamping system has the beneficial effects that the first clamping arm and the second clamping arm can be used for clamping the broken needle from the two sides, the tail end face of the 3D-printed annular limiting block can be matched with the first annular end face of the broken end face of the broken needle in shape to provide twisting moment, and the slow drawing and slow twisting combined operation mode is adopted; and the clamping efficiency and the success rate of the broken needle are improved.

The application discloses a high-power photovoltaic module with a waterproof sealing structure, and relates to the technical field of photovoltaic equipment.The photovoltaic module comprises a photovoltaic panel with a frame; and a sealing structure arranged on the frame and used for sealing the gap between the photovoltaic panel and the frame.The high-power photovoltaic module with the waterproof sealing structure has the advantages that the sealing material is a medium which is in a solid state at room temperature and in a liquid state at high temperature, the molten sealing material can be filled in the gap between the photovoltaic module and the frame, and the solid sealing is formed after the sealing material is solidified, so that the technical problems that the sealing damage cannot be repaired autonomously and the sealing structure is greatly affected by the environment in the prior art are solved, the stable sealing of the photovoltaic module and the plasticity of the sealing structure are realized, the damage to the sealing structure caused by the outdoor environment can be timely and effectively controlled, and the stability of the photovoltaic module sealing is improved.

The utility model discloses an energy-saving fluid motor resistant to high pressure and pressure pulsation, and relates to the technical field of hydraulic motors, the energy-saving fluid motor comprises a motor body, cup-shaped blades, an output wheel shaft and a shock wave recoverer; the periphery of the output wheel shaft is connected with a plurality of cup-shaped blades; the motor body is further provided with an oil inlet channel, an oil outlet channel and a shock wave channel. The large pulse flows through a shock wave recoverer at the bottom of the shock wave channel, is boosted and stabilized and then enters a flow-aiding channel and a braking channel on the two sides; a flow-aiding control valve is connected in the flow-aiding channel, and a brake control valve is connected in the brake channel; when the flow-aiding control valve is opened, the cup-shaped blade drives the output wheel shaft to rotate under the impact of incoming flow in the oil inlet channel and the flow-aiding channel; when the brake control valve is opened, the brake channel conveys the pulsating flow subjected to pressure boosting and pressure stabilizing into the cup-shaped blades, rotation of the cup-shaped blades is hindered, and the output wheel shaft can achieve flexible semi-brake under the action of opposite torque.

The invention relates to a device and a method for detecting fatigue resistance of a locking mechanism of a civil defense air-tight door, which are used for carrying out cyclic action test on the locking mechanism mounted on the civil defense air-tight door, and comprise a detection base of which the mounting surface is configured to be a locking mechanism mounting structure used for simulating the front surface or the back surface of the corresponding civil defense air-tight door; the power unit is mounted on the detection base and comprises a driving motor and a cycloid speed reducer connected with the output end of the driving motor; the gear transmission unit comprises a small gear connected with an output shaft of the cycloid speed reducer and a large gear in meshing transmission with the small gear, and the large gear is used for being in driving connection with an input rotating shaft of the locking mechanism to be tested; wherein the driving motor drives an input rotating shaft of the locking mechanism to perform forward and reverse reciprocating rotation so as to simulate opening and closing actions of the locking mechanism. The anti-fatigue detection device for the locking mechanism of the civil air-tight door is reasonable in structure, real in simulation, high in automation degree and capable of completing high-frequency cycle tests.

The invention discloses a connecting fastener fatigue test device, and relates to the technical field of fastener fatigue test, the connecting fastener fatigue test device comprises a loading frame, a rack slidably mounted along the width direction of the top end of the loading frame, and a long-axis linear driver arranged on one side of the top end of the loading frame and used for driving the rack to slide; a lifting device is installed at the bottom end of the rack, a wedge groove type single-cylinder multi-piece co-clamping assembly used for clamping at least two U-shaped bolts is installed at the driving end of the lifting device, at least two vertical plates are installed on the outer wall of one side of the carrying frame, and a double-rocker-arm synchronous bending assembly is installed on the outer wall of the side, close to the rack, of each vertical plate. Through stable clamping of multi-piece co-clamping, accurate height and distance adjustment, self-locking clamping and synchronous loading of double rocker arms, the problem of consistency of positioning, clamping and loading in a U-shaped bolt bending fatigue test is effectively solved, so that the accuracy, repeatability and operation efficiency of the U-shaped bolt bending fatigue test are improved.

The utility model discloses a quick-change device for replacing a punching hollow drill, which comprises a quick-change chuck body, the upper part of the quick-change chuck body is arranged on a power shaft, the lower part of the quick-change chuck body is provided with an insertion hole for inserting the hollow drill, the lower end of the quick-change chuck body extends outwards to form a chuck platform, and the side wall of the quick-change chuck body is provided with an accommodating through hole for accommodating a ball. The outer side of the quick-change chuck body is sleeved with a quick-change chuck sleeve, the inner side face of the lower portion of the quick-change chuck sleeve is an inclined face making contact with the balls, and a containing space for containing a reset spring is formed between the inner side face of the upper portion of the quick-change chuck sleeve and the outer side face of the quick-change chuck body. A quick-change chuck nut for compressing the reset spring is arranged on the outer side of the quick-change chuck body above the reset spring, and the reset spring is compressed and used for applying pressure to the quick-change chuck sleeve, so that the inclined plane moves downwards and is separated from the ball, and the upper end of the inclined plane extrudes the ball into the clamping hole. The hollow drill can be rapidly replaced without tools, and the efficiency of replacing the hollow drill is high.

A three-phase permanent magnet servo motor with a rotor with pole shoes and double eccentricity of the stator and rotor solves the positioning torque problem existing in square wave permanent magnet servo motors and sine wave permanent magnet servo motors. The motor is a fractional slot concentrated winding motor with the number of slots per pole per phase q=Z / (2Pm)≤1 / 2, 2P is the number of poles, and Z is the number of slots. Its rotor core is an eccentric rotor, and the rotor eccentricity P r =r1 / r2=(1.05~(1+2δcos(180° / 2P)); Its stator core is an eccentric stator, and the stator eccentricity P R =R1 / R2=(0.95~1 / (1+δcos(180° / Z)), (where r1 is the rotor radius, r2 is the rotor eccentric radius, R1 is the stator radius, and R2 is the stator eccentric radius), the motor is a stator-rotor double eccentric non-uniform air gap motor.