39results about How to "Torque controllable" patented technology

Disclosed is a torque spanner. The torque spanner comprises a spanner end, a spanner bar and a stress application loop bar. The stress application loop bar refers to a hollowed shell, and a connectinggroove is formed in the upper end of the stress application loop bar. The spanner end and the spanner bar are of an integrated structure. A boss is arranged at the necking position of the lower end of the spanner end. A connecting groove of the spanner bar abuts against the boss surface of the spanner end. The spanner bar and the stress application loop bar are movably connected together througha rotating shaft. A steel ball and a spring are further arranged inside the stress application loop bar. A diagonal plane is arranged at the lower end of the spanner bar and further abuts against theouter surface of the steel ball. The lower end of the steel ball is connected with the spring, and the lower end of the spring is connected with an adjusting jackscrew. The adjusting jackscrew is in threaded connection with the inner wall of the lower end of the stress application loop bar. The torque spanner is simple in structure, a nut can stretch into a bayonet inside the spanner end in the using process, the stress application loop bar is twisted, the steel ball can touch the inner wall of the stress application loop bar and a clear alarm can be raised when a set torque value is reached,vibrations can be felt on the stress application loop bar, and locking can be stopped at the moment. Operation is convenient, time and labor are saved and the torque can be adjusted.

The invention relates to a reduction gear and a control method thereof. The reduction gear comprises a servo motor and a reducing mechanism connected with the servo motor, the reducing mechanism comprises a driving part and a driven part mutually matched, and the servo motor is connected with the driving part through a coupler. The driving part and the driven part are matched to input the power of the servo motor and output the power after reduction. An input shaft of the servo motor and an output shaft of the reducing mechanism are respectively provided with a first detecting device and a second detecting device, the first detecting device and the second detecting device input signals to a servo controller, the servo controller controls the servo motor to drive the reducing mechanism so as to input the power of the servo motor and output the power after reduction. The reduction gear has low cost, high control precision and quick response; the torque and the rotating speed are controllable; networked and integrated control is conveniently realized; and instructions of a main controller can be received, and the operation of a mechanical arm is controlled in a closed loop mode.

The invention relates to a self-centering type torque adjusting wire winding device. The self-centering type torque adjusting wire winding device comprises a supporting base, a main body support, a wire coil friction connecting part, a wire coil, a wire coil connecting part, a limiting nut, a supporting support and a sliding rail. The sliding rail is fixed to the supporting base. The main body support is mounted on the sliding rail through a sliding groove in the bottom of the main body support. A vertical plate is arranged on one side of the upper end of the main body support, and the supporting support is arranged on the other side of the upper end of the fixing support. A shaft is arranged in the position, corresponding to a shaft on the upper portion of the vertical plate, of the upper portion of the supporting support. The wire coil friction connecting part is mounted on the shaft on the upper portion of the vertical plate of the main body support. The wire coil connecting part is mounted on the shaft on the upper portion of the supporting support. The wire coil is connected with the big-plate end of the wire coil friction connecting part and the big-plate end of the wire coil connecting part. An adjustable cohesion device is mounted on the wire coil friction connecting part or the wire coil connecting part. The self-centering type torque adjusting wire winding device can be centered automatically and is adjustable in torque, the necessary conditions are provided for wire replacing operation, operation is simplified, labor input is reduced, and the efficiency is improved.

The invention provides a testing apparatus for a service life of a load of a valve execution mechanism and a using method thereof. The testing apparatus comprises a rack, a rotating mechanism and a loading mechanism. The rack is supported between a top plate and a bottom plate by support posts. A testing plate covers the top plate. Rotating shafts are installed in bearings between the top plate and the bottom plate and the upper ends of the rotating shafts pass out of the top plate and a mounting plate. More than one rotating plate is installed on the rotating shafts horizontally and rotates with the rotating shafts. The loading mechanism includes friction plates and hydraulic systems; through holes are formed in the friction plates and the friction plates sleeve the support posts through the through holes. One friction plate is arranged below each rotating plate; and the friction plates are separated by sleeving rings arranged on the support posts. The hydraulic systems are installed on the bottom plate and mandrils of the hydraulic systems support the bottom friction plates; under pushing of the mandrils, upward contact with the rotating plates is realized and the last friction plate is pushed upwardly by the sleeving ring and is in contact with the rotating plate arranged on the friction plate; and the rotating plates and the friction plates in close contact with the rotating plates respectively generate friction and the friction forces are transformed into torques by the rotating shafts, thereby realizing testing of the service life of the load of the valve execution mechanism.

The invention discloses an ultra-low speed dynamometer based on an ultrasonic antifriction principle. The ultra-low speed dynamometer includes two parts of a motor speed torque measurement and controlmachine and a torque generator, and the torque generator is fixed on a base of the motor speed torque measurement and control machine. According to the ultra-low speed dynamometer based on the ultrasonic antifriction principle, sinusoidal waves of different frequencies can be applied to a single phase according to an ultrasonic antifriction phenomenon of a traveling wave type ultrasonic motor, and adjustable torque can be obtained by measuring a motor; and the defects of creep performance, load instability and inaccurate measurement data generated by dynamometers in market when the motor speed is lower than a certain value are overcame so that stable and adjustable torque can be obtained in the motor low speed operation process.

The invention belongs to the technical field of electric supporting rods, and provides an electric supporting rod electromagnetic brake. The electric supporting rod electromagnetic brake comprises a stator, a coil, a coil frame, a shell, an armature pressing sheet, a friction assembly and a spline shaft, wherein the coil is wound on the coil frame to form a coil assembly and assembled in the stator, the armature pressing sheet and the friction assembly are assembled in the shell and located on the right part of the stator, and the spline shaft transversely penetrates through the stator, the armature pressing sheet and the friction assembly and is connected with the friction assembly through a spline. The electric supporting rod electromagnetic brake has the advantages that the brake torque can be adjusted according to different working conditions and different voltages output by an ECU; it is ensured that the internal resistance in an electric supporting rod/a driving mechanism is adjustable, and the functions of electric/manual opening and closing, hovering and the like of a vehicle door under the various working conditions are met when the electric supporting rod/driving mechanism is assembled on the whole vehicle; when the brake works, the brake adjustment is rapid, the response is fast, and the noise is low during operation; the mechanism is small in boundary dimension, small in occupied space and capable of meeting the assembly requirements of different occasions.

The invention provides a numerical control constant torque vertical bolt wrench which comprises travel wheels, a travel frame, a power supply device, a driving frame and two wrench bodies. The travel wheels are mounted at two ends of the travel frame, the power supply device and the driving frame are respectively mounted on the travel frame, and the two wrench bodies are respectively mounted on the movable driving frame and comprise support frames, motors, clutches, torque switches, drivers, torque sensors, transmission shafts and working sleeves. Torque is easily controlled, on-site operation is convenient, too low torque or too high torque is avoided, the double sleeves independently work, a single sleeve of the double sleeve can work as required, and the numerical control constant torque vertical bolt wrench is adaptable to tightening and loosening operation of various vertical bolts of railway fasteners and turnout junctions.

The invention discloses barrel bottom flange automatic screw fixing equipment which comprises an automatic tightening unit, a rotary positioning tool and an automatic screw feeding unit. The automaticscrew feeding unit is composed of a stock bin, a screw screening mechanism, a screw separation mechanism and a screw blowing mechanism. The screw screening mechanism pushes screws in the stock bin toa screw temporary storage track through lifting, multiple sets of air cylinders of the screw separation mechanism are combined with sensor signals to distribute the screws to screw feeding pipelines,the screw blowing mechanism senses screw side blowing to blow the screws to a spray head, the automatic tightening unit is composed of a servo system, a lifting mechanism and tightening mechanism, apressing mechanism drives the tightening mechanism to descend to the preset height, a screwdriver drivers the screws to descend to a given position, and the servo system drives the screwdriver to tighten the screws. The automation degree is high, automatic screw conveying and tightening can be achieved, an air cylinder pushes a screw feeding mechanism to feed screws, operation is economic and simple, the accuracy rate is high, torque is controllable, and compatibility is high.

The invention relates to a method for reinforcing a reinforced concrete structure by using a prestressed hose clamp. The method comprises the following specific steps of: 1) arranging prestressed hoseclamps at equal intervals outside the reinforced concrete structure, and pre-tightening hose clamp screws by using a universal hose clamp batch or a straight line; 2) fastening the pre-stressed hoseclamp by using a torque wrench, and setting a fastening torque value as a preset value; 3) considering the deformation of the reinforced concrete structure and the moment attenuation during the installation of the prestressed hose clamp, secondarily fastening the prestressed hose clamp; 4) after fastening is completed, marking with a black marking stroke line; and 5) checking whether the prestressed hose clamp has a thread slipping and loosening phenomenon, and if so, replacing the thread slipping and loosening phenomenon. The adjustable and controllable prestress hose clamp reinforcing method is used in cooperation with the torque wrench, prestress can be accurately applied, prestress loss caused by later-stage steel loosening can be prevented, the overall deformation capacity and the bearing capacity of the reinforced concrete structure are effectively improved, and development of concrete cracks is restrained.

The invention relates to a tension-adjustable slip shaft, and relates to the technical field of slip shafts. The slip shaft comprises an air shaft main body and a plurality of slip rings mounted on the air shaft main body, each slip ring comprises a gear ring, a tension ring body and an end face bearing, both the tension ring bodies and the end face bearings sleeve the air shaft main body, the gear rings sleeve the end face bearings, air inlet ring grooves are formed in the inner walls of the tension ring bodies, piston holes are formed in the groove bottoms of the air inlet ring grooves, piston bodies are installed in the piston holes, an intake header pipe is arranged on the air shaft main body, an intake branch pipe is arranged on the side wall of the intake header pipe, a plug-in cylinder body is installed at one end of each gear ring, a fixed sleeve is installed at the other end of each gear ring, plug-in posts are slidably installed in the fixed sleeves, deflector rods are fixedly arranged on the side walls of the plug-in posts, a sliding groove and a limit part are arranged on the side wall of each fixed sleeve, springs are installed in the fixed sleeves, adjustment groovesare formed in the side walls of the gear rings, and the deflector rods are located in the adjustment grooves. The slip shaft has the characteristics of adjustable tension, wide application range and non-replacement.

The invention discloses an anti-overload electric screw driver. The anti-overload electric screw driver comprises a shell, a speed reducer is arranged in the shell, the input end of the speed reduceris connected with a clutch, and an input shaft of the clutch is provided with an input gear disc and an adjusting hand shank; a handle is arranged at the lower end of the shell, a motor, a switch, a power supply and a charging connector are arranged in the handle, an input shaft of the motor meshes with the input gear disc, and the motor, the switch and the charging connector are electrically connected with a power supply; and a fixing rod is arranged at the front end of the shell, a transmission rod is arranged in the fixing rod, one end of the transmission rod is connected with the output end of the speed reducer, the other end of the transmission rod is provided with an adapter, and a screw drivers bit is arranged in the adapter. According to the anti-overload electric screw driver, adjustment of the screw driver screwing torque can be achieved, the driver bit can be randomly replaced, the requirements of multiple occasions can be met, screw disassembling and assembling are convenient, and the structure is compact.

The invention relates to the technical field of buttonholing machines, and discloses a whole machine overlarge torque avoiding assembly for an intelligent shirt manufacturing buttonholing machine. The whole machine overlarge torque avoiding assembly comprises a buttonholing shaft; the top of the buttonholing shaft is provided with a buttonholing sleeve; and the top of the buttonholing sleeve is fixedly connected with a mounting top disc. According to the whole machine overlarge torque avoiding assembly for the intelligent shirt manufacturing buttonholing machine, through contact of an upper control contact and a lower control contact, an electric field wire in a control ball is powered on, then the electric field wire transmits surface current to the interior of an electrorheological body, the electrorheological body is hardened, and therefore under the action of the electrorheological body, the electrorheological body pushes an electric control plug to move towards the outer side, then under the cooperation of a movable net rack and a fixed net rack, the motion state of the electric control plug is transmitted to a limiting positioning head, then the limiting positioning head extends outwards to make contact with the inner wall of the buttonholing machine, and then the large torque state of cloth feeding wheel of the buttonholing machine is limited; and therefore, the torque of the cloth feeding wheel of the buttonholing machine is controllable.

The invention discloses a torque-adjustable screwdriver. The torque-adjustable screwdriver comprises a shell, wherein a speed reducer is arranged in the shell, the input end of the speed reducer is connected to a clutch, and an input gear disc and an adjusting handle are arranged on an input shaft of the clutch; a handle is arranged at the lower end of the shell, a motor, a switch, a power supplyand a charging head are arranged in the shell, an input shaft of the motor is meshed with the input gear disc, and the motor, the switch and the charging head are electrically connected to the power supply; a fixing disc is arranged at the front end of the shell, a transmission rod A and a gear disc are arranged in the fixing disc, one end of the transmission rod A is connected to the output end of the speed reducer, and the other end of the transmission rod A is meshed with the gear disc; and one end of the fixing disc is provided with a steering disc, the steering disc is provided with a transmission rod B with one end meshed with the gear disc, and the other end of the transmission rod B is provided with a screwdriver head. According to the torque-adjustable screwdriver, the steering ofthe screwdriver head can be realized, screws can be conveniently disassembled and assembled, the torque is adjustable, and the structure is compact.

The invention provides a headlight switching knob track data modeling method. The headlight switching knob track data modeling method comprises the steps that a torque curve of a headlight switching knob track is obtained; structural parameters are determined according to the design requirements of torque or load, a climbing torque formula or a downhill torque formula are established according to the structural parameters and the geometry and stress relation, the torque curve is divided into multiple sequentially connected climbing straight lines and/or downhill straight lines so that the slopes of the climbing straight lines and the downhill straight lines can be converted into the corresponding relation that height changes with angle increment through column coordinates; a starting point and the return angle, correction angle and height corresponding to the starting point are determined, the heights of the climbing straight lines and/or the downhill straight lines are calculated in sequence by utilizing the climbing torque formula and the downhill torque formula according to preset angle increment; the sequentially calculated heights are fit, a three-dimensional target track curve is drawn, and the curve is drawn. By implementing the headlight switching knob track data modeling method, the problem of low headlight switching knob track data modeling efficiency in the prior art is solved.

The invention discloses a material traction machine, and belongs to the technical field of mechanical equipment. The material traction machine comprises a frame; the lifting machine is connected with the frame; the rope winding mechanism is connected with the hoister, and the rope winding mechanism is configured to receive power from the hoister and rotate; a transmission mechanism; the rope winding mechanism rotates and drives the rope arranging mechanism to do linear reciprocating motion through the transmission mechanism; wherein the rope winding mechanism rotates, so that the steel wire rope penetrating through the rope arranging mechanism is wound on the rope winding mechanism, and the steel wire rope penetrating through the rope arranging mechanism does linear reciprocating motion along with the rope arranging mechanism, so that the steel wire rope is wound on the rope winding mechanism in sequence. The rope arrangement is tight and orderly, the safety is high, and the adaptability of the frame is high; the sealing visible sealing plate is additionally arranged to prevent an operator from touching the rope collecting mechanism to cause danger, the state of the rope collecting mechanism can be observed more conveniently, and the rope collecting device is safe and can cope with severe environments.