95results about How to "Precise control of movement speed" patented technology

The present invention relates to a cylindrical pipe with internal hardened layer, its production method and special-purpose equipment. Said cylindrical pipe has small wall thickness and long length, its pipe wall has internal layer and external layer with different hardness, the hardness of its internal layer is greater than that of external layer, and said pipe is applicable for conveying material with high frictional coefficient. Its production method adopts the mode utilizing frequency to control pipe movement and proper hardening temp. range, and is special-purpose equipment is simple in structure, stable in operation, and can accurately control hardening temp., pipe moving speed nad depth of hardened layer.

The invention discloses a multi-stage synchronous screw rod push rod mechanism. The multi-stage synchronous screw rod push rod mechanism comprises a transmission mechanism, a stretching mechanism, a fixing mechanism and a guide mechanism. A servo motor of the transmission mechanism drives a first-stage ball screw of a first-stage transmission mechanism to rotate through a motor synchronous pulleyand a ball screw synchronous pulley sequentially, the first-stage ball screw drives a first-stage ball nut and a first-stage guide mechanism to move so as to drive the other-stage hollow ball screws to rotate separately, thereby driving the ball nuts and guide mechanisms corresponding to the hollow ball screws at the same stage to move through the stretching mechanism. The multi-stage synchronousscrew rod pushing rod mechanism is small in size and capable of realizing large-stroke transmission, high-precision expansion about n times of the length of the mechanism is realized, and a pluralityof sections can be expanded and retracted simultaneously. The multi-stage ball screw push rod mechanism can achieve synchronous expansion and retraction of the multi-stage ball screws at the same speed, and has the characteristics of being high in transmission precision, small in occupied space, high in transmission efficiency, low in noise and the like.

The invention discloses a feeding apparatus. The feeding apparatus comprises a pedestal, a channel connected with the pedestal, a material fixing mechanism which is arranged at one end of the channel and can horizontally move relative to the channel, and a material blocking mechanism which is used for blocking materials in the channel. The material blocking mechanism comprises a swing block and a blocking sheet connected with the swing block. The swing block comprises a guide surface. The material fixing mechanism further comprises a roller which is contacted with and cooperates with the guide surface. The feeding apparatus further comprises a vibration disc arranged at the other side of the channel. One side, which is close to the vibration disc, of the channel is provided with a magnet. The feeding apparatus with such a structure can rapidly separate the multiple materials which are tidily arranged in the channel and are closely attached and send the materials to a next processing station.

The invention provides an autonomous navigation robot based on a global wheel. The autonomous navigation robot based on the global wheel comprises a distance detector, a main controller, a rechargeable lithium battery, a microcomputer, a control platform, a drive motor, an omnidirectional wheel, a spherical tyre, a tyre support, a buffer mechanism, a bullseye wheel, a robot support and a tyre drive mechanism. The robot support comprises the tyre support and the control platform; the tyre support is arranged on the outer side of the spherical tyre in a sleeving manner; the control platform is arranged above the tyre support; the tyre drive mechanism comprises at least three groups of drive wheels and drive motors; the drive wheels are respectively connected with the corresponding drive motors; the drive motors are connected with the main controller; the distance detector is connected with the main controller; the main controller and the distance detector are arranged on the control platform; the at least three groups of drive wheels are arranged on the surface of the spherical tyre and are rotatably connected with the surface of the spherical tyre.

The invention relates to an indoor agricultural unmanned aerial vehicle test platform. The indoor agricultural unmanned aerial vehicle test platform comprises an unmanned aerial vehicle, a parallel four-bar linkage, a movable trolley, a guide rail and a load-bearing platform; the unmanned aerial vehicle which flies horizontally is installed on the load-bearing platform; the load-bearing platform is installed on the parallel four-bar linkage; the parallel four-bar linkage is installed on the movable trolley; and the movable trolley is movably installed on the guide rail. The parallel four-bar linkage comprises an upper rotating rod, a lower rotating rod, a vertical fixed rod and a vertical lifting rod; the upper rotating rod is rotationally installed on the fixed rod and the lifting rod; one end of the lower rotating rod is rotationally installed on the fixed rod, and the other end of the lower rotating rod is rotationally installed on the lifting rod; and the fixed rod is installed on the movable trolley. The indoor agricultural unmanned aerial vehicle test platform can reliably and precisely test the unmanned aerial vehicle and belongs to the technical field of agricultural aviation.

The invention relates to a scaleplate device, in particular to an ultrasonic damage-free descaling machine used for cleaning an oilfield equipment unit. The ultrasonic damage-free descaling machine aims at solving the problems that an exiting cleaning device is low in work efficiency, and manual turning cleaning is needed. The ultrasonic damage-free descaling machine used for cleaning the oilfield equipment unit comprises an ultrasonic cleaning tank, a rotating mechanism and a movable energy collecting transducer mechanism. The rotating mechanism is arranged in the ultrasonic cleaning tank. The movable energy collecting transducer mechanism is hung at the upper end of the notch of the ultrasonic cleaning tank through a transducer support. The rotating mechanism comprises a driving assembly, a net box support and a plurality of net boxes. The other end of each net box is connected with the driving assembly. The front end of the driving assembly is connected with a speed regulating motor. The movable energy collecting transducer mechanism comprises a lead screw, a lead screw nut and a plurality of energy collecting transducers, and the energy collecting transducers are arranged at the upper end of the transducer support. The ultrasonic damage-free descaling machine is used for cleaning the oilfield equipment unit.

The invention discloses a convenient and fast yarn winding roller mounting frame. The frame comprises a base, two supporting rods vertically and fixedly arranged on the surface of the base, a windingroller installed between the two supporting rods, a first motor arranged at one end of the winding roller and used for driving the winding roller to rotate, a first component, a second component and amoving seat which is used for driving the second component to move to realize clamping or separation of the first component and the second component. The frame is simple in structure and convenient to operate, by arranging the first component, the second component, the moving seat and a driving mechanism which are matched with one another for use, and a mortise and a tenon are adopted to performfixing between the first component and the second component through clamping, so that the first component and the second component can be locked and fixed without the aid of other auxiliary fixing components, the winding roller can be conveniently disassembled or installed, and the frame can be suitable for winding rollers of different sizes.

The invention relates to a low-speed anti-falling safety device. According to the low-speed anti-falling safety device, a brake gear is supported by an end cover and a brake drum through a big bearing and a small bearing, and a support is installed on the brake gear; a first centrifugal block and a second centrifugal block are installed on the support through bearings and rest pins, and the two centrifugal blocks are in central symmetry about the rotation center of the safety device; a connecting rod is connected with the tail portion of the first centrifugal block and a pin hole formed in the front portion of the second centrifugal block through hinge pins or bolts, and therefore it is guaranteed that the work positions of the two centrifugal blocks are synchronous; the tail portion of the second centrifugal block is provided with a thrust bolt through a third hinge pin, the thrust bolt is provided with a governing spring in a penetrating mode, and the thrust of the governing spring enables the first centrifugal block to be tightly pressed on the support; a belleville spring and a pressing nut are arranged on a threaded rod located at the end of the outer side of the brake drum, and the pressure of the belleville spring is transmitted to the brake drum through the pressing nut. According to the low-speed anti-falling safety device, through a speed limiting mechanism of the safety device, whether the speed of an operation component of a protected target exceeds a preset value under the low-speed condition can be detected, the safety device can automatically brake the operation component, and therefore low-speed operation of the safety device is achieved.

The invention discloses a tank entering and exiting system. A cart girder which can be shifted is arranged above electrolytic tanks arranged to form an array, and a circular track is arranged on the cart girder. The circular track is movably provided with a plurality of liftable mechanical arms, and a feeding and discharging area a, a tank area b to be entered, a tank entering and exiting workingarea c and a discharging passivation area d are arranged on the circular track and on the side of the circular track. The mechanical arms move along the circular track to work, N electrolytic tanks are arranged in a row, and the whole system is provided with N+1 mechanical arms and a positioning device. The first mechanical arm entering the system is only responsible for removing a negative plate,the last mechanical arm is only responsible for inserting the negative plate, and all the mechanical arms in the middle complete two jobs of the insertion of a tank position negative plate and the extraction of the next tank position negative plate, namely all the mechanical arms working twice in one working period. Compared with the previous process that each mechanical arm only works once in one working period, the working efficiency is significantly improved.

The invention discloses a double closed loop speed control captive trajectory simulation (CTS)CTS test method based on time and space transformation. On the one hand, an error model of CTS speed control is established by a load discreet value calculation method based on speed second order interpolation polynomials, the self adaption of time step length of the movement of external models is realized, and the optimal time and space transformation scale is dynamically produced by combining dynamic response parameters of CTS hardware and errors of trajectory control; and on the other hand, the movement speed of a support mechanism for a six-freedom degree model is precisely controlled in a conventional speed closed loop control mode formed by a lower computer and a speed sensor, signal measurement and data calculation can be performed without suspension, the center of gravity of the model is ensured to be continuously kept on a real movement track, false collision of the external models and a master is avoided, and the CTS time is shorten and the test cost is reduced possibly under the condition of ensuring test precision.

The invention relates to a working method of a rodlike section bar bundling robot. The robot adopts the structure that a frame is provided with an upper arm and a lower arm; an air cylinder I is arranged on the upper arm and is suitable for moving left and right relative to the upper arm; a piston rod I and a connecting rod I in the air cylinder I are suitable for moving vertically; a flexible nail box is arranged at the bottom end of the connecting rod I; a table-board for placing a steel bundle is in sliding fit with the lower arm in a left-and-right manner; an air cylinder II is fixedly arranged at the bottom of the lower arm; a piston II and a connecting rod II at the top of the piston II are arranged in the air cylinder II; a pair of grooves are formed in the top of the connecting rod II; when the connecting rod I and the connecting rod II are aligned and compressed, a nail can penetrate and clench a rubber strip for bundling the steel bundle; a compressing block which is suitable for moving relative to the connecting rod II for clamping the end part of the rubber strip is arranged on the right side of the connecting rod II. The rodlike section bar bundling robot provided by the invention is free of false wires in the bundling process and the rolled steel bundled is prevented from being loosened due to shift.

The invention discloses an automatic measuring device for a gyroscopic moment of a crankshaft and a roundness of a rotation shaft in an engine. The automatic measuring device comprises a driving motor, a gearbox, a gearbox support, a rotation shaft connector, a torque sensor, rolling bearings, a rolling bearing support, the rotation shaft, a connecting sleeve, and a roundness detection assembly. The roundness detection assembly comprises a detection support, a detection rod, a detection rod spring, a varistor, and a pressure display recorder. The detection support is distributed around the periphery of the rotation shaft. According to the automatic measuring device for the gyroscopic moment of the crankshaft and the roundness of the rotation shaft in the engine, the gyroscopic moment of the crankshaft and the roundness of the rotation shaft are accurately detected, and the using effect is good.

The invention discloses a mold release machine used for releasing a mold in a tubular product. The mold release machine comprises a machine frame, a fixing device, a movable mold release device and adriving device. The fixing device and the movable mold release device are arranged on the machine frame. The fixing device fixes the core mold in the tubular product, the fixing device comprises a main fixing device and an auxiliary fixing device, the movable mold release device is detachably connected with the outer wall of the tubular product, the driving device pulls the movable mold release device, and the movable mold release device drives the tubular product to move in the axial direction of the tubular product. In the mold release process, the problem that one end of the core mold presses on the tubular product due to gravity is avoided, in other words, no extrusion is formed between the core mold and the tubular product, resistance in the mold release process is reduced, mold release is easier, and damage to the tubular product is avoided.

The invention discloses an ultrahigh pressure testing system and a control method thereof. The ultrahigh pressure testing system comprises a liquid box, a first control valve and a servo supercharger. The liquid box is connected with the first control valve and the servo supercharger in sequence. The servo supercharger is connected with a pressure testing device. A second control valve is connected between the servo supercharger and the pressure testing device. A first pressure detection module is arranged between the first control valve and the second control valve. A second pressure detection module is arranged between the pressure testing device and the second control valve or in the pressure testing device. The technical purpose of the invention is to provide the ultrahigh pressure testing system which uses the servo supercharger as a power source to ensure high precision and high pressure of medium pressurization and intelligently control the pressure rising/reducing rate, and provide the control method of the ultrahigh pressure testing system to realize automatic control in the pressure testing process.

The invention relates to a rod section bar bundling robot. The rod section bar bundling robot comprises a machine frame, wherein an upper arm and a lower arm are arranged on the machine frame; an air cylinder I is arranged on the upper arm and is suitable for moving left and right relative to the upper arm, a piston I and a connecting rod I in the air cylinder I are suitable for vertically moving, and a telescopic nail box is arranged at the bottom end of the connecting rod I; a table board for placing a steel bundle is arranged on the lower arm in a left-right sliding fit manner, an air cylinder II is fixedly arranged at the bottom of the lower arm, a piston II and a connecting rod II at the top of the piston II are arranged in the air cylinder II, a pair of grooves is formed in the top surface of the connecting rod II, and the grooves are suitable for allowing nails to penetrate through and tightly grasp a rubber tape for bundling the steel bundle when the connecting rod I and the connecting rod II are aligned and pressed; a pressing block which is suitable for moving relative to the connecting rod II and is used for clamping ends of the rubber tape is arranged on the right side of the connecting rod II. For the rod section bar bundling robot, during the process of bundling, a virtual-wire phenomenon cannot occur, and once bundling is finished, the steel bundle is not easy to loosen due to displacement of steel wires.

The invention relates to a rod section bar bundling device for bundling steel wires by rubber tapes. The rod section bar bundling device comprises a machine frame, wherein an upper arm and a lower arm are arranged on the machine frame; an air cylinder I is arranged on the upper arm and is suitable for moving left and right relative to the upper arm, a piston I and a connecting rod I in the air cylinder I are suitable for vertically moving, and a telescopic nail box is arranged at the bottom end of the connecting rod I; a table board for placing a steel bundle is arranged on the lower arm in a left-right sliding fit manner, an air cylinder II is fixedly arranged at the bottom of the lower arm, a piston II and a connecting rod II at the top of the piston II are arranged in the air cylinder II, a pair of grooves is formed in the top surface of the connecting rod II, and the grooves are suitable for allowing nails to penetrate through and tightly grasp a rubber tape for bundling the steel bundle when the connecting rod I and the connecting rod II are aligned and pressed; a pressing block which is suitable for moving relative to the connecting rod II and is used for clamping ends of the rubber tape is arranged on the right side of the connecting rod II. For the rod section bar bundling device, during the process of bundling, a virtual-wire phenomenon cannot occur, and once bundling is finished, the steel bundle is not easy to loosen due to displacement of the steel wires.

The invention discloses an automatic numerically-controlled final trimming and dust collecting device for PVC sheets. The automatic numerically-controlled final trimming and dust collecting device is characterized by comprising a table (1), a transverse rail trolley (2), two transverse cutting hobs (3) arranged in an up-down symmetry mode, a transverse cutting dust-collection hood (4), an electric pushing device (5), a transverse chain wheel transmission mechanism (6), a transverse chain wheel driving servo motor (7), a longitudinal rail trolley (8), a longitudinal cutting dust-collection hood (9), two longitudinal cutting hobs (10) arranged in a left-right symmetry mode, a longitudinal chain wheel transmission mechanism (11), a finished product table (12), an automatic packaging machine (13), a longitudinal chain wheel driving servo motor (14), two parallel longitudinal guide rails (15), two parallel transverse guide rails (16), an electronic control box (17) and wires (18). The automatic numerically-controlled final trimming and dust collecting device for the PVC sheets is novel in structure, high in cutting precision and speed, high in automation degree, capable of remarkably improving production efficiency, safe and environmentally friendly.

The invention discloses a power control device of a single-person dynamic seat. The single-person dynamic seat comprises a fiber glass reinforced plastic seat main body, an upper platform, a lower platform and an electric control system, wherein a first electric cylinder, a second electric cylinder and a third electric cylinder are fixed to the upper platform; the first electric cylinder, the second electric cylinder and the electric cylinder are fixedly connected to the lower platform by virtue of hinges; and the electric control system is fixedly arranged between the upper platform and the lower platform. The single-person dynamic seat provided by the invention is simple in structure, low in construction cost and strong in practicability; the electric control system is a closed-loop control system, so that the first electric cylinder, the second electric cylinder and the third electric cylinder can be independently controlled in motions of lifting, inclining leftwards and rightwards and pitching back and forth; therefore, a loading capacity is enhanced, and a phenomenon of becoming deflected is prevented; movement speeds and movement positions can be precisely controlled, so that a high simulation effect can be achieved; and each electric cylinder is stepless-adjustable in motion, so that delicate dynamic motions can be provided in accordance with movie plots; therefore, an audience can have a delicate and comfortable experience.