1818 results about "Counter rotation" patented technology

The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor drive motor (24), the pressure within the system is relieved and substantially equalized across the compressor, thereby eliminating the possibility of unpowered reverse rotation of the compressor at shutdown. Pressure relief and equalization may be achieved by reducing the operating speed of the compressor to a low forward speed for a period of time prior to deenergizing the compressor drive motor. Pressure equalization may also be achieved by driving the compressor in reverse rotation prior to deenergizing the drive motor.

Can opener includes a shell, power mechanism, transmission mechanism, and cutting mechanism. The transmission mechanism includes a main drive gear, eccentric disc, and movable block. The main drive gear and eccentric disc are coaxially arranged, and the surface of the main drive gear facing the eccentric disc is provided with a linkage groove. The movable block is arranged on the eccentric disc in a liftable manner to insert into or withdraw from the linkage groove. One side of the movable block is provided with a first inclined surface and a first vertical surface, and the other side is provided with a second vertical surface. When the main drive gear rotates forward, the linkage groove abuts against the first vertical surface to drive the eccentric disc to rotate forward. When it rotates forward beyond the limiting position, the linkage groove slides relative to the first inclined surface to stop driving the eccentric disc to rotate forward. When it rotates backward, the linkage groove abuts against the second vertical surface to drive the eccentric disc to rotate backward.

This invention discloses a press-to-rebound damping slide rail, belonging to the field of slide rail technology. The press-to-rebound damping slide rail of this invention includes a slide rail assembly and a press-to-rebound damping device. The slide rail assembly includes a fixed rail and a movable rail. The gearbox of the press-to-rebound damping device is equipped with a transmission gear and a clutch mechanism that mesh with a rack on the movable rail. In the first position, the gearbox has a rebound spring and a self-closing spring stretched and stored energy, and the gearbox is locked in the base. In the first position, the trigger part of the trigger transmission block is pushed by the trigger plate on the movable rail, causing the gearbox to unlock and rebound to the second position. The clutch mechanism locks the reverse rotation of the transmission gear and drives the rack and movable rail to rebound and move together. This invention organically combines the press-to-rebound mechanism and the damping closing mechanism, ensuring that the stability of their cooperation is not reduced by factors such as installation errors, making assembly simpler and more convenient, and guaranteeing product consistency.

The invention discloses a sweeping robot control method and system, and the method comprises the steps: calling a pre-established fault feature library according to a fault type outputted by an abnormality recognition module, and carrying out the matching of corresponding abnormality feature data, and obtaining a preliminary abnormality confirmation result; according to the action recovery instruction, an execution unit of the sweeping robot is driven to adjust the wheel rotating speed or reversely rotate a brush, state feedback data after execution is obtained, and whether the recovery action is completed or not is judged; a new cleaning path scheme is generated according to the condition that the current obstacle avoidance capability is insufficient through a path adjustment demand, and the feasibility of an alternative path is determined; through real-time state data in a task execution process, cleaning efficiency and frequent fault problems are continuously monitored, a feature library is circulated, and operation stability is judged.

Disclosed is a method of fastening a cap of a container, the method including: specifying a screw thread engagement point of a cap and a neck ring of a container; and aligning the engagement point with a fastening start position of the cap and fastening the cap to the neck ring, in which the specifying of the engagement point includes detecting the engagement point by rotating the cap in a reverse direction in a state where the cap is seated on the neck ring.

There are provided sliding components that allow sliding surfaces to smoothly slide against each other regardless of whether a relative rotation direction is a forward rotation or a reverse rotation. The sliding components and include: a pair of sliding surfaces and disposed to face each other at a location where a relative rotation takes place when a rotating machine is driven. The sliding surface is provided with a first dynamic pressure generating groove communicating with a radially outer-side space and extending in one circumferential direction, a second dynamic pressure generating groove extending in the opposed circumferential direction, and a conduit groove communicating with the space. The conduit groove includes an annular groove and a communication groove communicating between the annular groove and the space. The second dynamic pressure generating groove is disposed closer to the space than the annular groove, and communicates with the annular groove.

Provided in the present invention is a gravity-free spring roller blind controller. The gravity-free spring roller blind controller comprises a torque adjustment assembly and a torsion spring connecting rod assembly. The torque adjustment assembly comprises a bracket, a torsion spring mounting seat, a guide sleeve, and a roller blind sleeve. A one-way torsion spring is sleeved on a mounting shaft of the torsion spring mounting seat, the guide sleeve is further rotatably sleeved with a torque adjustment knob, the guide sleeve is provided with a first flange, and a second flange is provided on the torque adjustment knob. The first flange reversely pushes the one-way torsion spring so that the one-way torsion spring is locked tightly onto the mounting shaft. According to the present invention, the torque of the torsion spring on the torsion spring connecting rod assembly is increased or decreased by forwardly or reversely rotating the second flange.

The invention relates to an automatic press-fitting system for a rotor and a spline shaft, which is characterized in that a laser sensor is used for detecting the reflected light intensity difference of a tooth crest and a tooth groove, and a PLC (Programmable Logic Controller) calculates the angular deviation of the spline shaft in real time based on a difference signal and generates a rotation instruction; after receiving the instruction, the servo motor drives the spline shaft to adjust at a certain increment angle; the suction cup tool sucks the rotor end face through a vacuum suction cup and moves to the position coaxial with the spline shaft; and the servo press drives the rotor to press with constant pressure, the PLC synchronously analyzes the press-in force and displacement, when the displacement reaches a preset range, it is judged that meshing succeeds, and when the displacement does not reach the preset range, it is judged that tooth crest interference occurs, and a reverse rotation correction process is triggered. The system can realize high-precision angle detection and dynamic correction, improves the one-time success rate of engagement of the spline shaft and the rotor, is suitable for precision assembly scenes such as a new energy automobile electric drive system and an industrial speed reducer, effectively reduces the manual intervention cost, and improves the production takt time stability.

A forced-entry-resistant sash lock includes a housing, shaft / handle member, cam member, and secondary cam. When the cam member is in the unlocked position, rotating the shaft causes secondary cam rotation initially being independent of the cam member, and subsequently the secondary cam's first contact surface contacts the cam member's first contact surface causing co-rotation of the cam member and engagement of its cantilevered arm's first engagement surface with an interior housing wall's first engagement surface to cause deflection of the arm, and continued shaft rotation returns the cantilevered arm to the undeflected position, whereat forced counter-rotation of the cam member towards the unlocked cam member position is prevented by the contact between the first contact surface of the secondary cam and first contact surface of the cam member and contact between the second engagement surface of the cantilevered arm and the second engagement surface of the interior wall.

The utility model relates to the field of ore grinding equipment, in particular to ore grinding equipment with a dust falling structure, which comprises a bottom plate, supporting legs, a grinding box, a feeding pipe, a discharging pipe, a coaxial reversing assembly, a crushing and grinding assembly and a dust removing assembly, through cooperative work of the coaxial reversing assembly, the crushing and grinding assembly and the dust removal assembly, the integrated process of ore crushing, fine grinding and efficient dust removal is achieved, through combined operation of the coaxial reversing assembly, the crushing and grinding assembly and the dust removal assembly, the stability in the crushing and grinding process is guaranteed, the crushing effect is improved through reverse rotation, and the crushing efficiency is improved. The dust removal assembly removes dust generated in the whole process, cleanness of the working environment and health of operators are maintained, environmental pollution is effectively reduced, in addition, when the two rotating shafts rotate, the first crushing blade and the second crushing blade can cut ore in the opposite directions, and therefore strong shearing force is generated, and the crushing efficiency is improved. Therefore, the ore can be crushed more effectively and further refined.

The utility model relates to the technical field of wire harness winding, and discloses an automobile wire harness winding device with a tension adjustable structure, which comprises a base plate, a limiting bracket is arranged on the left side of the top of the base plate, and a limiting cross rod for limiting the height of a wire rod is arranged on the rear side wall of the limiting bracket. According to the automobile wire harness winding device with the tension adjustable structure, an inner shaft column is pushed to rotate reversely through the elastic force of a buffering elastic piece, the inner shaft column drives a mounting rotary disc to rotate reversely, and the mounting rotary disc drives a first buffering sleeve and a second buffering sleeve to rotate reversely through a first buffering roller and a second buffering roller; and the tension of the wound wire rod can be adjusted and controlled by controlling the deformation torsion of the buffer elastic piece in advance, the winding tightness of the wire rod with different hardness can be adjusted and controlled conveniently, and therefore the winding quality is improved.

An electrical device of a rotational device for a human-powered vehicle comprises a wireless communicator and an electronic controller. The wireless communicator is configured to wirelessly communicate with an additional electrical device. The electronic controller is electrically connected to the wireless communicator to wirelessly communicate with the additional electrical device via the wireless communicator. The electronic controller is configured to control the wireless communicator to execute pairing in response to a reverse rotation of the rotational device.

The utility model provides a coffee bean picking and washing all-in-one machine relates to coffee production equipment technical field, including picking box and collecting box, picking box is installed in the front end of collecting box top, the top of picking box is provided with first motor, the output end of first motor passes through preset through-hole downward connection picking box drive transmission rod, and picking box drive transmission rod passes through the through-hole. And a driving transmission rod, a transfer rod and a driven transmission rod are rotationally connected in the picking box in sequence. The first motor drives the driving transmission rod to rotate, the driving gear and the driven gear are arranged on the rod body of the driving transmission rod and the rod body of the transfer rod respectively, and the driving gear and the driven gear are connected in a meshed mode, so that when the driving transmission rod rotates, the transfer rod can be driven to rotate reversely, and meanwhile the transfer rod is driven to rotate. The transfer rod and the driven transmission rod achieve synchronous power transmission through the first belt wheel, the second belt wheel and the rubber belt, and therefore the first motor can drive the driving transmission rod and the driven transmission rod to rotate reversely at the same time.

The invention relates to the technical field of laser welding and sealing equipment, in particular to titanium tube laser welding and sealing equipment for sealing a seed source and a method thereof.The titanium tube laser welding and sealing equipment comprises a station rotating stand capable of periodically rotating by 60 degrees, an upper gear ring and a middle gear ring which synchronously rotate are installed on the station rotating stand, and a lower gear ring which coaxially and reversely rotates with the middle gear ring is further installed on the station rotating stand; six positioning cylinders are mounted on the station rotating stand, a clamping cylinder is rotationally mounted in each positioning cylinder, a clamping module is mounted in each clamping cylinder, and a feeding station, a clamping pre-detection station, a welding station, a post-detection station, a clamping loosening station and a discharging station are sequentially arranged on the station rotating stand in the clockwise direction. The station rotating frame capable of periodically rotating by 60 degrees is designed, the feeding station, the clamping pre-detection station, the welding station, the post-detection station, the clamping loosening station, the discharging station and other stations are arranged in order, cooperative operation of the temperature control mechanism is matched, and an efficient and coherent process flow is successfully constructed.

The invention provides a fuel-based, single-engine multirotor drone, wherein the drone comprises a body, a turboshaft engine to generate rotational movement, a plurality of rotors, a plurality of pulleys, a plurality of transmission belts, and a gearbox assembly. The gearbox assembly comprises a pair of coaxial counter-rotating gears which are coupled to a pair of coaxial counter-rotating shafts, wherein the rotational movement of the engine is transferred synchronously from the counter-rotating shafts of the gearbox to the plurality of the rotors through the plurality of pulleys and transmission belts.

The invention discloses a method for testing an electric power steering system assembly, and belongs to the technical field of automobile part testing. The technical problems that in an existing testing method, static and dynamic testing processes are separated, testing efficiency is low, and quantitative evaluation on key dynamic performance parameters is difficult are solved. According to the invention, a test tool comprising a simulation rack, a driving device, an encoder, a torque sensor and a data acquisition card is adopted, and a control and processing module automatically executes a continuous test process: firstly, performing a static assistance test on an assembly, and judging qualification; and if the test is qualified, the test is automatically switched to dynamic test, a torque command signal is sent to the assembly, an output shaft is driven to rotate forwards and backwards, a position and a feedback torque signal are collected, and dynamic response parameters such as a position dispersion error, power-assisted delay time and overshoot are calculated. The method is mainly used for comprehensive performance testing and quality evaluation of the electric power steering system assembly in the production manufacturing or maintenance after-sales link.

An information processing apparatus sets, for a rotation gate that is a quantum gate executed on an encoded logical qubit, a target rotation angle set in the rotation gate to a designated rotation angle, generates a first logical qubit having a predetermined ancilla state based on the designated rotation angle, executes a stochastic rotation operation that results in a forward rotation with the designated rotation angle or in an inverse rotation whose sign is opposite to a sign of the designated rotation angle by using, as input, the first logical qubit and a second logical qubit on which the rotation gate is executed, and repeats a process for generating the first logical qubit and a process for executing the rotation operation while updating the designated rotation angle based on the target rotation angle until the rotation operation results in the forward rotation.

The utility model discloses a valve monitor and a valve monitoring system, the valve monitor is arranged on a manual valve with a hand wheel, and the valve monitor comprises a box body installed on a main body of the manual valve; the sensor is arranged on the box body, and at least part of the sensor is located on the rotating path of the hand wheel; the sensor can be driven by the forward rotating hand wheel to move forward and generate a first signal, and the sensor can be driven by the reverse rotating hand wheel to move reversely and generate a second signal; and the data transmission module is arranged in the box body, is in communication connection with the sensor and the upper computer, and is used for transmitting the first signal or the second signal to the upper computer. According to the scheme, the number of turns of forward / reverse rotation of the hand wheel of the valve is collected through the sensor and transmitted to the upper computer through the data transmission module, an operator can know the state of the valve in real time through the upper computer, and the monitoring capacity of a pipeline system is improved.

The stabilizing device for cable take-up comprises a base and a cable body, a wire frame is installed on the top of the base, a wire shaft is rotatably installed on the inner side of the wire frame, an installation frame is fixedly installed on the top of the base, and reciprocating screw rods are rotatably installed on the inner walls of the two sides of the installation frame. According to the scheme, two tightening wheels are matched with a spring to tighten a cable body, a pull rod and a pressing shell assist in pressing, the pressing shell moves downwards to change the directions of the tightening wheels every time a layer of cable is wound, constant tension adaptation is achieved, damage is avoided, and the take-up quality is improved; through cooperation of the balls and the spiral grooves, the auxiliary rollers rotate reversely to apply reverse torque to the cable, and the risk of spiral scratching is reduced; when the pressing shell descends, the third connecting rod and the torsional spring guarantee stable operation; the cable outer wall is cleaned through the cleaning disc and the cleaning brush, the driving rod drives the cleaning disc to rotate back and forth, the cleaning effect is improved, and the finished product surface defect rate is reduced.

The invention refers to an active aero shutter for a motor vehicle, comprising a frame with openings through which air can flow, at least one closing plate in each opening, which closes the opening and stops the air flow when closed, and the frame is formed by several struts, each connected to at least one other strut, wherein each closing plate is pivoted with a hinge on a basic strut. As the active aero shutter according to the invention has counterrotating closing plates which are rotating in several angles it is possible to explore new design concepts and ensure driving performance.

To prevent an inversion roller from deviating in an axial direction at normal rotation and at reverse rotation to reduce a positional deviation of a sheet caused by a deviation in the axial direction of the inversion roller.SOLUTION: An image formation device includes: an image formation part; a re-feed part configured to feed a sheet with an image formed by the image formation part again to the image formation part; and an inversion part configured to invert the sheet with the image formed by the image formation part and convey the sheet to the re-feed part. The inversion part includes: an inversion roller configured to rotate normally or rotate reversely to convey a sheet; a helical gear provided on an axis of the inversion roller and driven to rotate the inversion roller normally or reversely integrally to rotation; and a pressing member configured to press the inversion roller in the axial direction.SELECTED DRAWING: Figure 4

The utility model relates to the technical field of mahjong machines, and particularly discloses a rotary tile lifting mechanism and a mahjong machine, at least comprising a tile lifting seat, a driving mechanism, a tile pushing head and a tile lifting and pushing part, the tile lifting seat comprises a tile lifting seat main body and an annular tile lifting groove surrounding the tile lifting seat main body, the driving mechanism comprises a driving motor capable of rotating forwards and backwards, a first one-way mechanism, a second one-way mechanism, a first driving piece and a second driving piece, and the rotating direction of the first one-way mechanism is opposite to that of the second one-way mechanism. According to the rotary tile lifting mechanism and the mahjong machine, the first one-way mechanism and the second one-way mechanism which are opposite in rotation direction are arranged, the two steps of tile pushing and tile lifting are completed through forward and reverse rotation of the driving motor, a tile stacking and pushing mechanism in a traditional mahjong machine is removed, the structure of the mahjong machine is simpler, and the mahjong machine is more convenient to use. Four motors can be reduced for each mahjong machine, the control system is simpler, the system operation is more stable, the failure rate is lower, and the cost is lower.

The utility model provides a heating sheet bending device which comprises a rack, a feeding mechanism, a bending mechanism, a guide mechanism and a reset mechanism, a bending area is arranged on the rack, the guide mechanism comprises a guide base part and a first guide groove, and the feeding mechanism is used for driving a heating sheet to pass through the first guide groove and enter the bending area; the bending mechanism comprises a rotating base body, a bending rod and a rotating motion module used for driving the rotating base body and the bending rod to rotate, the bending rod deviates from the rotating axis of the rotating motion module, the rotating motion module drives the bending rod to rotate, and the bending rod bends the heating piece; the reset mechanism drives the bending rod to leave and enter the bending area, and in the state that the bending rod leaves the bending area, the rotary motion module drives the bending rod to reversely rotate and reset. The heating sheet bending device can complete bending forming of the heating sheet, and for ultrathin or superfine metal heating sheets, the advantages of being accurate in bending forming size, high in bending forming efficiency, controllable in bending forming size, low in labor cost and the like can be achieved.

The invention relates to the field of transformer coil preparation, in particular to a wire feeding device for transformer coil winding, which comprises a mounting box, a wire wheel, a sliding mechanism, a rotating mechanism, a transmission part and a controller. And enameled wires are wound on the wire wheel and unwound through traction of the transmission part. The sliding mechanism drives the reel to slide axially, the rotating mechanism adjusts the rotating speed of the reel, and the sliding mechanism and the rotating mechanism are cooperatively controlled by the controller. The first camera monitors the included angle alpha between the enameled wire and the vertical plane, the second camera monitors the included angle beta between the horizontal plane, and the controller dynamically adjusts the position and the rotating speed of the wire wheel accordingly to ensure synchronization of unwinding speed and traction speed. The transmission part adopts meshing gears to drive double rubber wheels to rotate reversely, so that the traction stability is enhanced; the rotating mechanism adjusts the distance between the conical discs through the hydraulic oil pressure difference, and stepless speed change is achieved. The device solves the problems of non-uniform tension, friction damage, knotting shutdown and the like of an enameled wire in a traditional device, remarkably improves the winding efficiency and the coil quality, and is suitable for high-precision transformer production.

The invention provides a full-high-viscosity paste stirring anti-wall-hanging device, and relates to the technical field of mining machinery. The device comprises a horizontal stirring tank, a first stirring shaft and a second stirring shaft which are arranged in parallel, a transmission system and a scraper assembly, a feed port is formed in the top of the stirring tank, and a discharge port is formed in the bottom; the first stirring shaft and the second stirring shaft synchronously and reversely rotate through a gear box, and flat plate paddles and scraper mounting shafts are alternately arranged on the two shafts; and the scraper assembly is connected with the scraper mounting shaft through an elastic pressure mechanism. According to the device, uniform mixing of high-viscosity materials and efficient wall sticking prevention are realized through synchronous reverse rotation of double shafts, dynamic pressure scraping plates and informatization dynamic adjustment. The device is suitable for continuous industrial production of materials such as high-concentration waste stone tailing paste and cementing materials, and the problems that a traditional double-shaft stirring machine adheres to walls and blocks, and is high in energy consumption and difficult to maintain are solved.

The invention discloses a blended fabric printing device, and belongs to the technical field of fabric printing, the blended fabric printing device comprises a rack, a printing mechanism, a fixing box, a filtering box and an air injection box are arranged in the rack, pressing mechanisms are arranged at the bottoms of the two sides of the rack, and a conveying mechanism is arranged on one side of the top of the rack; a transmission mechanism is arranged on the other side of the top of the rack; a rotating wheel and a cleaning cylinder are rotationally installed in the machine frame, a large gear is fixedly installed at the front end of the rotating wheel, a small gear and a plurality of cleaning bristles are fixedly installed on the outer side of the cleaning cylinder, and the small gear is meshed with the large gear. By integrating transmission, sweeping, air injection and filtering structures, collaborative operation of automatic conveying and efficient cleaning is achieved, the sweeping cylinder reversely rotates through gear meshing, and a closed-loop cleaning system for blowing, sweeping, adsorbing and filtering impurities on the surface of the fabric is formed by combining piston reciprocating motion to drive alternate air injection and negative pressure adsorption. And the printing quality is effectively improved.

The invention relates to the technical field of pen type injection devices, in particular to a pen type injection device with a drive, which comprises a medicine bottle support, a shell, a dose setting ring, a trigger mechanism and an autonomous drive injection assembly, and a medicine bottle is accommodated in the medicine bottle support; the shell is connected with the medicine bottle bracket; the dose setting ring is rotationally connected with the shell; the dose setting ring is configured to set a dose by forward rotation of the dose setting ring relative to the housing, the dose being corrected by reverse rotation of the dose setting ring relative to the housing; the autonomously-driven injection assembly comprises a driving assembly and an injection assembly, and when the dosage is set, the driving assembly stores driving force; when the dose is corrected, the driving assembly releases the driving force; when the triggering mechanism is triggered, the driving assembly can drive the injection assembly to move towards the medicine bottle, and injection is achieved. The device has the functions of dose setting, dose correction, automatic pushing of liquid medicine by triggering and driving of an injection button, locking after the liquid medicine in the device is completely injected and emptied, and the like.