43results about How to "Control the direction of rotation" patented technology

The invention relates to the detection field, disclosing a detection device of surface defects. The detection device of surface defects, which includes an image input part and a detection part, consists of a rolling mechanism and a pitching mechanism to drive an object stage to rotate towards four directions. A loading process can test a plurality of surfaces of a detected object; therefore, the device is convenient in use. Moreover, the coordination of a rolling motor, a pitching motor and a control circuit leads the device to conveniently control the rotation direction, swing angle and speed of the object stage and to collect images of the detected object in various angles, thus being beneficial to the detection part to detect comprehensively the defect according to the original image taken from various input angles and beneficial to improving the defect detection accuracy. In addition, the device can automatically adjust and finish the image capture of the detected objects from various angles as well as image detection, obviously, the device is favorable to improving automatic detection and detection efficiency.

The invention discloses a mechanical type dynamic two-dimensional code lock for a public bike. The mechanical type dynamic two-dimensional code lock comprises a lock seat and a lock body, wherein the lock body is arranged in the lock seat; the lock body comprises a lock cylinder and a movable lock tongue, wherein the lock cylinder is movably connected with the movable lock tongue; the lock seat is also provided with a mounting base used for installing a two-dimensional code plate; a window for viewing a two-dimensional code on the two-dimensional code plate is formed in the mounting base; the movable lock tongue is parallel to the mounting base; the end, close to the window, of the movable lock tongue is a sheltering end, and the end, close to an object to be locked, of the movable lock tongue is a locking end; the movable lock tongue is connected with the mounting base in a sliding way; the sheltering end slides on the window so as to enable the two-dimensional code on the two-dimensional code plate to be switched between a displayed state and a sheltered state. The bike lock is reasonably combined with the two-dimensional code for identifying the public bike, so that the mechanical type dynamic two-dimensional code lock for the public bike is not only simple, compact and reliable in structure, but is also convenient to install; more superiorly, the basic structure of the public bike does not need to refit, so that the production cost is effectively lowered.

The embodiment of the invention discloses disc rotating direction control method and device and a disc. The disc rotating direction control method comprises the steps of: receiving a trigger signal; generating a driving pulse according to the trigger signal; and sending the driving pulse to a spindle driver so that a spindle driver can control the rotating direction of a spindle motor according to the driving pulse, wherein the spindle motor is used for driving discs to rotate. The embodiment of the invention can control the rotating direction of discs, effectively lower the disc resonance and reduce the disc vibration, thereby realizing the purpose of disc protection.

The invention discloses a volume-variable air spring auxiliary air chamber, and relates to the technical field of automobile air spring auxiliary air chambers. The volume-variable air spring auxiliaryair chamber mainly comprises a first-stage air chamber body, a second-stage air chamber and a third-stage air chamber body and further comprises a connecting pipeline connected with a main air chamber body, a top cover, a separation plate, a ratchet wheel, a rotary disc, a ratchet wheel shaft and the like. According to the auxiliary air chamber, changing of the volume of the auxiliary air chambercan be achieved by controlling rotation of the rotary disc, and a driving mechanism drives the ratchet wheel shaft to rotate. The ratchet wheel on the ratchet wheel shaft rotates through the ratchetwheel shaft to interact with a pawl on the rotary disc, and then the rotary disc is driven to do circling motion. When a hole in the rotary disc is coaxial with a hole in a separation plate, the effective volume of the auxiliary air chamber changes, the rigidity of an air spring system is finally changed to meet various running working conditions of a vehicle, and the aim of improving the comprehensive performance of an air suspension system is achieved.

The invention discloses a rapidly screening machine, and relates to a screening machine. The rapidly screening machine is characterized in that an electric motor, a speed reducer, a switch button, screen stencil tension shafts and a trough are arranged on a machine frame; a main shaft and a screen stencil scraping cage are arranged in the trough; the screen stencil scraping cage is fixed on the main shaft; a screen stencil is arranged at the bottom of the trough; the two screen stencil tension shafts are used for tensioning the screen stencil; the electric motor drives the main shaft and the screen stencil scraping cage to rotate by the speed reducer. The rapidly screening machine has a simple structure, and is convenient to use, high in production efficiency, good in screening effect and particularly suitable for screening in peach slices, and has a high popularization value.

The invention relates to the field of luminous energy radiation, and discloses a solar device and a control method thereof. The solar device comprises a solar photovoltaic panel, a detection part and an adjusting part. The detection part is arranged on the solar photovoltaic panel and parallel to the solar photovoltaic panel. The adjusting part is connected with the solar photovoltaic panel in a linkage way. The adjusting part is electrically connected with the detection part. The detection part detects whether the facing direction of the solar photovoltaic panel and the irradiation direction of sunlight to the solar photovoltaic panel are opposite at the moment. If the detection result is no, the adjusting part adjusts the facing direction of the solar photovoltaic panel according to triggering of the detection part until the facing direction of the solar photovoltaic panel and the irradiation direction of sunlight to the solar photovoltaic panel are opposite at the moment. The invention also discloses a control method of the solar device. Whether the facing direction of the solar photovoltaic panel and the irradiation direction of sunlight to the solar photovoltaic panel are opposite at the moment is monitored in real time, and the facing direction of the solar photovoltaic panel is automatically adjusted according to the monitoring result so as to enhance the utilization rate of sunlight.

The invention relates to a travel trailer guide wheel device, comprising a guide wheel telescopic device and a guide wheel collecting and placing device. The travel trailer guide wheel device is characterized in that one lateral surface of the guide wheel collecting and placing device is fixedly connected to the corresponding position of a travel trailer, the middle part of the guide wheel telescopic device is movably connected with the guide wheel collecting and placing device, the guide wheel telescopic device can rotate relative to the overall guide wheel collecting and placing device by tensioning a pull rod of the guide wheel collecting and placing device, the guide wheel telescopic device can be locked at a horizontal or vertical position by loosening the pull rod, an overall guide wheel can stretch and contract up and down by rotating a handle of the guide wheel telescopic device, and the guide wheel can turn by continuously rotating the handle when the guide wheel is in reliable contact with the ground. The travel trailer guide wheel device is simple in structure, convenient to machine and install and low in cost, can allow the travel trailer to move in the specified direction before parking, and has a broad application space.

The invention relates to welding equipment, in particular to environment-friendly and energy-saving type metal plate welding equipment. The provided environment-friendly and energy-saving type metal plate welding equipment is high in welding efficiency, a workpiece does not need to be clamped by auxiliary equipment, and welding quality is high. The environment-friendly and energy-saving type metalplate welding equipment provided by the invention comprises a bottom plate used for installing the whole equipment, a first supporting frame, a servo motor, a placing mechanism, a clamping mechanism,a conveying mechanism and a welding mechanism. The first supporting frame is arranged on one side of the top of the bottom plate. The servo motor is arranged at the top of the first supporting frame.The placing mechanism is arranged on one side of the top of the bottom plate. The clamping mechanism is arranged in the placing mechanism. The conveying mechanism is arranged on one side of the top of the bottom plate. The welding mechanism is arranged in the middle of the top of the bottom plate. A toothed belt wheel assembly is matched with second gears, the toothed belt wheel assembly is meshed with the second gears on the upper portion and the lower portion respectively, therefore the rotating direction of a fourth rotating shaft can be controlled, and then a welding gun can be driven tomove up and down.

The invention relates to a method for detecting surface defects of a steel ball based on a double-thread expansion method. The method comprises a transmission mechanism, an expansion mechanism, a sorting mechanism and a detection system, wherein the feeding mechanism is connected with inlet ends of lead screws through a feeding pipeline, two ends of the lead screws are fixed on bearings, the leadscrews are driven to synchronously rotate by a stepping motor through a synchronous belt, threads with relatively large screw pitches are formed in the lead screws, the steel ball falls into a space between the threads of the two lead screws to form four contact surfaces with thread forms, the lead screws rotate to drive the steel ball to do a variable axis rotary motion, an expansion surface of the steel ball is changed according to the track of a helical line, five high-speed cameras are distributed above the lead screws and can be used for alternately capturing a to-be-detected surface of the expanded steel ball; and the tails of the lead screws are step-shaped, the detected steel ball falls into a receiving hopper through the step-shape tails, and an electromagnet is arranged in the front-back direction of the receiving hoper and is used for controlling a baffle to rotate around the shaft so that the steel balls fall into a storage box through a discharging pipe. According to the system described by the invention, the defects of the steel ball in a certain diameter range can be detected, and the system has relatively high detection efficiency.

The embodiment of the invention provides a pan-tilt, a pan-tilt control method, a pan-tilt control device and a computer storage medium. The pan-tilt comprises a processor, a handheld assembly, a camera assembly and a shaft assembly, the camera assembly can rotate relative to the handheld assembly through the shaft assembly; the maximum angle of the camera assembly rotating around a preset rotating shaft in the first direction from the initial position is a first angle, the maximum angle of the camera assembly rotating around the preset rotating shaft in the second direction from the initial position is a second angle, the first angle is not equal to the second angle, and at least one rotating shaft comprises the preset rotating shaft. When a user holds the pan-tilt by a hand, the rotationangle of the camera assembly is ensured to be larger, the processor controls the rotation direction, the rotation angle and the rotation angular speed of the rotation shaft more accurately, and the better shooting quality is kept.

The invention provides an indoor decoration wire harness drawing device. The problems that in the prior art, when a wall face and the ground are decorated, the distances between drawn oblique lines are not uniform, and the later watching effect is affected are effectively solved. According to the technical scheme, the indoor decoration wire harness drawing device comprises a rack, wherein belt wheels are arranged on the rack, a synchronous belt is arranged between the two belt wheels on the belt wheels, and a rolling brush is arranged on the synchronous belt; and a planetary gear mechanism is arranged on the rear side of the rack, a first bevel gear is arranged on the left side of a sun wheel, a second bevel gear is arranged on the belt wheel on the right side, a cylinder is arranged at the right end of a gear ring, a first friction wheel is arranged at the right end of the cylinder, a second friction wheel is arranged on the right side of the first friction wheel, a small friction wheel is arranged between a first friction disc and a second friction disc, and a wheel is connected to the right end of the second friction wheel. The indoor decoration wire harness drawing device is ingenious in structure, standard oblique lines or grid lines required by a user can be drawn according to a certain rule, drawing can be carried out according to a pre-designed route, the distances between the lines are distributed uniformly in the drawing process, operation is convenient, and adaptability is high.

The invention relates to a synchronous vector control method for two motor linkage systems. The method comprises the following steps: synchronously acquiring signals of two motors to convert coordinates; synchronously sampling external signals, and synchronously converting from a three-phase static coordinate system to a two-phase static coordinate system; observing the speed; converting from the two-phase static coordinate system to a two-phase rotating coordinate system; synchronously regulating PI; synchronously converting from the two-phase rotating coordinate system to the two-phase static coordinate system; synchronously implementing the modulation output of SVPWM. The synchronous vector control method has the following benefits: the sampling and the data processing are synchronously implemented for all signals of the two motors; the vector control of movement states of the two motors is implemented only through one algorithm without the coordination of other controllers; the synchronous vector control method can control parameters such as rotating directions, operation speeds and moment output states of the motors.

The invention relates to the technical field of dust collectors, in particular to a cyclone dust collector which is characterized in that an air inlet pipe is mounted at the top of a conical body; a spiral blade is installed in a cavity of the conical body and installed on an exhaust pipe, the axis of the exhaust pipe coincides with the axis of the conical body, and a filter pipe is installed at the air inlet end of the exhaust pipe. A dust removal pipe is mounted at the top of the conical body; the conical body is installed on the supporting frame. The problem that the gas flow rate of a cyclone dust collector in the prior art needs to be strictly controlled is solved. The spiral blade is mounted in the conical body of the cyclone dust collector, on one hand, dust-containing airflow can be divided into two strands of airflow by the spiral blade, axial airflow can be uniformly and slowly changed into tangential airflow, and the dust collection efficiency is remarkably improved; on the other hand, the spiral blade can control the airflow rotating direction, and therefore the dust-containing airflow is prevented from directly entering the exhaust pipe.

The invention discloses a rack drive type crawler bogie. The rack drive type crawler bogie comprises a bogie main body, a rack support and a transmission device, wherein the bogie main body is provided with a crawler used for carrying and conveying cargoes; the transportation direction of the crawler is perpendicular to the advancing direction of the bogie; the rack support is arranged on the sideedge of the bogie main body; the side, facing the bogie main body, of the rack support is provided with an upper rack and a lower rack which can be ascended and descended vertically; and the transmission device is arranged under the crawler and comprises a gear engaged with an upper gear and a lower gear, a synchronous pulley set which is in transmission connection with the crawler, and a transmission assembly for transmitting rotation of the gear to the synchronous pulley set. The rack drive type crawler bogie has the beneficial effects that through relative movement of the bogie and the racks, the crawler is driven to move through a gear-rack engagement mechanism in cooperation with the relevant transmission device, and the cargoes on the crawler of the bogie are dropped from a conveying line.

The invention relates to the technical field of alternating-current power distribution devices, and discloses a power distribution box door opening and closing mechanism based on an alternating-current power distribution device. The mechanism comprises a box body; the left side of the box body is fixedly connected with a connecting block. According to the distribution box door opening and closingmechanism based on the alternating-current distribution device, when a gear rotates counterclockwise, at the moment, a clamping block moves downwards under the powerful action of teeth on the clampingblock, the gear can rotate anticlockwise; when the gear rotates clockwise, the clamping block can generate resistance to the teeth, so that the teeth cannot rotate, the gear cannot rotate clockwise;and therefore, the effect of controlling the rotating direction of the gear is achieved. When wind power acts on an opened box door, the box door can rotate anticlockwise through the wind power, a clamping rod can drive the gear to rotate clockwise, the box door cannot be closed through the wind power due to the fact that the gear cannot rotate clockwise, and therefore the effect that closing of the box door cannot be affected by the wind power when the box door is opened and closed at any angle is achieved.

The invention provides a mould adjusting device and belongs to the technical field of injection molding machines. By means of the mould adjusting device, the technical problems that an existing injection molding machine mould adjusting device is complex in structure and poor in stability of a transmission process are solved. The technical scheme of the mould adjusting device includes that the mould adjusting device is arranged on an injection molding machine mould adjusting plate; the mould adjusting plate is mounted on four pull rods and can move on the pull rods; the mould adjusting device comprises a first gear connected with a driving motor, a gear ring arranged in the middle of the mould adjusting plate and engaged with the first gear, and second gears arranged on the pull rods and inengaged connection with the gear ring; four rollers are uniformly arranged on the mould adjusting plate and are in rolling connection with the inner side wall of the gear ring; and a sensor switch isfurther arranged on the mould adjusting plate, is opposite to an external gear of the gear ring and can sense the external gear. The mould adjusting device has the beneficial effects that the structure is simpler, the manufacturing and application cost is lower, transmission is faster, more stable and easier to implement, and the fault rate in the transmission process is lower.

The invention relates to a graphene-based magnetic adjustable Faraday rotator. The structure is composed of three portions, i.e., a circular waveguide applied to a microwave frequency range, a multilayer graphene module vertical to a microwave signal propagation direction in the circular waveguide, and a solenoid module sleeving the circular waveguide for providing magnetic field offset. The multilayer graphene module is composed of multiple single-layer graphene sheets in parallel arrangement inside the module. The solenoid module can control the strength of an externally added bias static magnetic field through controlling the size of currents. When electromagnetic waves in a TE11 mode, transmitted inside the circular waveguide, are transmitted through the graphene module under a condition with the magnetic offset, angle deflection is generated. By using the rotator, a rotation angle can be accurately adjusted within a certain scope. Besides, the Faraday type rotator also has the advantages of simple and compact structure, quite small size, easy integration, simple control, and convenient use.

The present invention sequentially controls a first vane module, a second vane module, a third vane module, and a fourth vane module in consecutive order, thereby generating round swinging wind aroundan indoor unit, so as to have advantages of providing direct air in the discharging direction of each vane module, and providing indirect air to an indoor space that is outside the discharging direction of each vane module.