23results about How to "Stop smooth" patented technology

The invention discloses a hydraulic oil cylinder with high buffering performance, and relates to the technical field of hydraulic oil cylinders, the hydraulic oil cylinder comprises a reciprocating motion assembly, and the reciprocating motion assembly is used for driving a piston rod to do reciprocating rectilinear motion. During use, when a sealing piston is about to move to a stroke terminal, a buffer ring generates thrust on an annular plate, so that two nitrile rubber pads are sunken, meanwhile, a reset spring is extruded and contracted, and under the cooperation of the reset spring and the nitrile rubber pads, the sealing piston is preliminarily buffered, and in addition, a connecting rod pushes a buffer plate to move in an arc-shaped cover; the piston rod body is filled with hydraulic oil and gradually extrudes polyurethane foam, the polyurethane foam has good buffering performance, the filled hydraulic oil generates viscous resistance, the extruded hydraulic oil can enter the buffering cavity through the oil inlet cavity, secondary buffering is conducted on the sealing piston under the cooperation of the polyurethane foam and the filled hydraulic oil, the movement speed of the piston rod body is gradually reduced, and the sealing effect is improved. And stable speed reduction and stopping are realized.

The invention discloses a self-adaptive rotary material separation device, and relates to the technical field of waste plastic cleaning and recycling equipment. A guide wheel is installed on the main machine frame through a guide wheel base, a first elastomer assembly is installed between the main machine frame and the guide wheel base, guide rails are installed at the two ends of the roller, the guide wheel is slidably connected into the guide rails, screen holes are formed in the middle of the roller, and a screen underflow guide plate is installed on the main machine frame below the screen holes. A second elastic assembly is installed between a speed reducer base of the speed reducer and the main machine frame. The self-adaptive rotary material separation device is compact in structure, stable in starting and stopping, low in noise and capable of effectively separating the whole PET bottle from impurities.

The invention relates to the technical field of molten iron transfer, and discloses high-stability molten iron transfer equipment which comprises a tractor, wheels are rotatably connected to the lower portion of the tractor, a molten iron tank is fixedly connected to the upper surface of the tractor, and a linear motor is fixedly connected to the upper surface of the tractor. According to the hot-metal ladle conveying device, after the sealing half covers on the two sides of the hot-metal ladle are attached to each other, the hot-metal ladle can be sealed, molten iron is prevented from splashing in the conveying process, the sliding base and the sealing half covers ascend and descend, the sealing half covers are adjusted to the proper positions according to the height of the hot-metal ladle, and therefore the hot-metal ladle can be conveniently conveyed. The semi-circular head plug pin is fixed in the positioning cylinder, so that the semi-circular head plug pin can be better fixed, the sealing stability is improved, the fixing block and the positioning cylinder are thoroughly separated, the semi-circular head plug pin can be quickly opened, and molten iron can be loaded and unloaded.

The invention relates to the field of elevator fault exhibition halls, in particular to an elevator safety education demonstration experience system and method for an elevator fault exhibition hall. Comprising an elevator simulation unit arranged in a wall of an exhibition room; the elevator simulation unit comprises a simulation elevator used for taking a first experience person and simulating elevator faults, and a VR display device arranged in the simulation elevator. The data processing unit is configured to form a first experiencer experience scene and a second experiencer experience scene; the VR display device is configured to display an experience scene of a first experiencer; and the display unit is configured to display the actual fault scene of the elevator, the experience scene of the second experiencer and the reaction and safe operation of the first experiencer. The elevator safety education demonstration experience system for the elevator fault exhibition hall can obviously improve the flow of people entering the exhibition hall, and has an excellent fault exhibition learning experience effect.

The utility model discloses a spiral swinging hydraulic device capable of being mechanically locked at any angle, which comprises a cylinder barrel, a spiral output shaft, a front end cover, a rear end cover, a piston, a disc spring and a thrust ring, the spiral output shaft is arranged in the cylinder barrel, the two ends of the spiral output shaft penetrate through the front end cover and the rear end cover respectively, the spiral output shaft further penetrates through the piston, the thrust ring and the disc spring, the spiral output shaft is provided with a piston connecting part and a boss connecting part, and a piston protruding ring protruding outwards is arranged in the middle of the piston and is connected with the inner wall of the cylinder barrel in a sealed mode. The cylinder barrel is provided with a right-handed rotation oil inlet and a left-handed rotation oil inlet which are respectively communicated with the right-handed rotation oil inlet area and the left-handed rotation oil inlet area; the disc spring is arranged between the rear end cover and the thrust ring, and the thrust ring is movably connected with the cylinder barrel without rotation. In the using process, the gear shaft can be stably stopped at a certain position for a long time and can be effectively locked, and work is safe and reliable.

The utility model discloses a high-protection flip type vehicle-mounted socket of a new energy automobile. The high-protection flip type vehicle-mounted socket comprises a panel module and a socket module, the panel module comprises a flange panel and an upward turning cover, one end of a pin shaft is fixed to the two sides of the rear end of the upward turning cover, the other side of the pin shaft is rotationally connected to the rear end of the flange panel through a damper in a damping mode, and a first sealing ring is installed on the lower wall of an inner end ring of the upward turning cover. A socket body of the socket module is detachably connected to the lower portion of the flange panel in a threaded mode, an upper plug board shaft of the socket body is arranged in a middle through hole of the flange panel in a sleeving mode and located under the inner end ring, fixed-position hovering can be achieved when an upper turning cover is opened in a damping rotating mode, and when the upper turning cover is closed in a rotating mode, an upper plug board is located in the inner end ring and tightly sealed by a first sealing ring. According to the utility model, the socket is high in protection level, dust, water vapor and other foreign matters are effectively prevented from entering the socket, the service life of the socket is prolonged, and the use safety effect is ensured at the same time.

The utility model is suitable for mine machinery and electrical control technical field provides a kind of for mining bottom cleaning machine rotation's double limit structure, it include: fixed base;Rotary support, rotary support is connected between fixed base by rotary reducer;Hydraulic motor, the hydraulic motor is used to drive rotary reducer inner ring rotation;Limit pin, limit pin inserts the hole in rotary support and extends into the limit slot of fixed base;And angle sensor for detecting the rotation angle of rotary support, through electrical detection rotation angle will reach limit when reducing in advance, reduce the loss of mechanical collision, limit stop pin can effectively stop rotation, when stop pin has abrasion, can be corrected abrasion amount by turning 90 degrees;The utility model can improve control precision and operation quality, enhance system reliability and security, improve environmental adaptability and maintenance convenience, prolong equipment service life and reduce maintenance cost.

The utility model is suitable for the technical field of gravity stoppers, and provides a line body gravity stopper which comprises an assembly seat, a stopping plate and a buffering mechanism. The buffer mechanism comprises a connecting rod arranged on the outer side of the barrier plate; side baffles are arranged on the sides, away from the barrier plates, of the connecting rods; the reset springs are arranged on the other sides of the side baffles, the buffer plate is arranged on the other sides of the reset springs, and a flexible pad is arranged on the outer side of the buffer plate; according to the utility model, the line body tray is allowed to advance at a proper speed, so that the stopping and releasing actions are accurately controlled, accidents caused by withdrawing of the line body tray are prevented, the accuracy and the stability of the conveying process are ensured, and the risk caused by too high speed is reduced; when the line body tray is in contact with the stopper, the buffer mechanism not only reduces the speed of the line body tray, but also reduces the impact force during collision, and ensures that the line body tray can be stably stopped after collision, so that the design effectively protects the line body tray and other equipment on a production line, and prolongs the service life.

The invention discloses a defect detection device for PP film production, which comprises a rack device, a detection device, a detection device and a control device, the rack device is provided with a carrier roller, and the rack device is provided with a driving belt for driving the carrier roller to rotate; the polygonal mirror is arranged on the outer side of the carrier roller in an arc shape; the machine frame device comprises two sets of first machine frames, two sets of synchronous assemblies are arranged on the outer sides of the first machine frames, the two sets of synchronous assemblies are symmetrically arranged relative to the carrier roller, and industrial cameras are arranged on the synchronous assemblies and used for shooting PP films reflected on the polygon mirror. The synchronous assembly further comprises a first gear, the first gear is fixedly connected with the end of the carrier roller, an intermittent assembly is arranged on the first rack, a base is fixedly connected to the first rack, a second gear is rotationally connected to the base, and a fixing assembly used for fixing an industrial camera is arranged on the second gear. And the reset assembly is arranged on the second gear.

The invention discloses a three-level power transmission system of a vertical circulation stereo garage, the transmission system comprises a main motor, a reduction motor, a secondary transmission shaft, and a tertiary transmission shaft, the secondary transmission shaft is arranged between the reduction motor and the tertiary transmission shaft and is parallel to the power output shaft and the tertiary transmission shaft of the reduction motor; the reduction motor and the secondary transmission shaft, and the secondary transmission shaft and the tertiary transmission shaft are connected by chain transmission; the tertiary transmission shaft is provided with a circulating chain driving wheel. The three-level power transmission system of the invention can effectively improve the stress condition of the transmission shaft, so that the safety and stability of the equipment operation are more reliably guaranteed.

The utility model relates to the technical field of mold processing, in particular to a part lifting device for mold processing, which comprises a main body, a plurality of universal wheels are arranged at the bottom end of the main body, a fixing cavity is arranged in the main body, a fixing plate is arranged in the fixing cavity, and a rubber pad is arranged at the bottom end of the fixing plate. And a supporting column is fixedly arranged at the top end of the fixing cavity, a cavity is formed in the top end of the fixing plate, the bottom end of the supporting column is arranged in the cavity, the bottom end of the supporting column is sleeved with a first spring, and a first damper is arranged at the bottom end of the supporting column. The fixing plate is convenient to move through the adjusting mechanism, so that the rubber pad at the bottom end of the fixing plate is far away from or clings to the ground, the device can move or stop on the ground, the use convenience of the device is improved, the mounting stability of the hook is improved through the fixing mechanism, limiting of the hook is convenient to cancel, and the safety of the device is improved. Therefore, the hook is replaced.

This utility model discloses a precast power wall end mold with a walking mechanism, relating to the field of precast power wall technology. It includes a mold body, a first mold support welded to the bottom of the mold body, an inclined support welded to the side of the mold body opposite to the casting side, a first roller and a second roller mounted on the first mold support, an independent roller mounted on the inclined support, and a braking device for braking the first roller. The lowest points of the wheel surfaces of the first roller and the independent roller are at the same height, used for rolling support on the top plane of the upper horizontal section of an I-beam track. The second roller is a conical wheel located below the first roller, used for rolling against the bottom inclined surface of the upper horizontal section of the I-beam track. When used as the end mold of a precast power wall casting equipment, this utility model's precast power wall end mold achieves more stable movement and excellent controllability.

The invention provides a transmission speed automatic adjustment control circuit. The three detection branches detect whether there are transmitted articles at three positions on the transmission line and send out position detection signals when detecting the articles. The three speed regulation branches comprise resistors R1, R2 and R3 and relays K1, K2 and K3, electromagnetic coils of the relays receive position detection signals sent by the detection branch, and normally open contacts are closed when receiving the position detection signals. The output branch comprises a resistor R4 and a resistor R5, and a control signal output port is arranged between the resistor R4 and the resistor R5. On one hand, the conveying speed can be automatically and gradually increased when article conveying begins, it can be guaranteed that articles are stably placed, it can be guaranteed that the articles are conveyed at a high speed when the number of the conveyed articles is the maximum, and the conveying efficiency is improved; on the other hand, the transmission speed can be automatically and gradually reduced when transmission is about to be finished, the transmission mechanism can stably stop at a low speed when transmission is finished, and mechanical structure damage caused by high-speed sudden stop is avoided.

This utility model discloses a damping device, and discloses a cover plate and a toilet with the damping device. The damping device includes: a first rib inside the housing; a rotating assembly that can rotate in both directions through the housing, the rotating assembly including a shaft, the shaft having two radially protruding second ribs, the shaft, the second ribs and the inner wall of the housing defining a damping cavity for filling damping grease, the first ribs dividing the damping cavity into a first cavity and a second cavity, the side wall of the shaft having a circumferential surface that gradually changes distance from the central axis of the shaft, the circumferential surface and the first ribs forming a gap; by utilizing the oil gap that changes size with the rotation of the rotating assembly, the rotating assembly can generate a gradually increasing buffering effect when rotating forward, so that it can eventually stop stably, avoiding the shaking of external components connected and used with it when "stopping", and at the same time, it can smoothly and quickly reset when rotating in reverse.

The utility model discloses a suspension type garbage storage device which comprises a supporting device and a storage bag, the supporting device comprises a base and a suspension rod, installation grooves are formed in the two sides of the base, installation holes are formed in the installation grooves, the suspension rod is rotationally connected into the installation grooves through pin shafts, and the pin shafts are installed in the installation holes; a hanging rod channel is arranged at the bag opening of the storage bag, two hanging holes matched with the hanging rods are formed in the hanging rod channel, and the hanging rods penetrate through the hanging holes and penetrate into the hanging rod channel; the garbage can is used for solving the problems that in the prior art, a garbage can occupies a large space, and a garbage bag is troublesome to mount and dismount and inconvenient to use.

The invention relates to the technical field of wafer processing, in particular to a PVD (Physical Vapor Deposition) equipment conveying system based on double conveying platforms, which comprises a first conveying platform, a second conveying platform, a feeding structure and a conveying structure, a first mechanical gripper is arranged in the first working cavity; the second conveying platform is connected to one side of the first conveying platform, and a second mechanical gripper is arranged in the second working cavity; the conveying structure comprises a rail and a storage part. According to the PVD equipment conveying system based on the double conveying platforms, the storage piece moves in the first working cavity and the second working cavity, so that a first mechanical gripper and a second mechanical gripper can conveniently grab wafers and place the wafers on different workbenches; and the wafers on the storage piece can be processed and manufactured according to different process routes through the movement of the storage piece, so that the wafers can be processed according to the different process routes, the adaptability is high, the production efficiency is improved, and the productivity is improved.

The utility model discloses a low noise electric sliding platform relates to low noise electric sliding platform technical field, including fixed base, the downside front and rear both ends of fixed base are connected with a plurality of connecting blocks, and the outside lower extreme of connecting block is equipped with the damping box, and the downside fixed connection of connecting block has the buffer board, and the left and right sides of buffer board are slotted with a plurality of lower limit slide groove, and the downside front and rear both ends of buffer board are fixedly connected with damping spring, and the inside fixed connection of damping spring has the shock absorber, the upside left and right both ends of fixed base are fixedly connected with the support side frame, and the inside rotation of support side frame is connected with the rotation axis, and the left side fixed connection of rotation axis has the servo motor, and the right side fixed connection of rotation axis has the rotation lead screw, the outside screw thread connection of rotation lead screw has the removal sliding platform, the outside of servo motor is equipped with motor fixed frame, one side fixed connection of support side frame has a plurality of linear guide rails, and the outer surface slot of support side frame has a plurality of clamping grooves.

The application discloses a kind of router shell continuous injection molding equipment and molding process, it is related to injection molding equipment technical field, including machine tool, fixedly connected in the top of machine tool fixed die assembly and injection system;Fixed die assembly is close to the part of four corners and is equipped with through-hole, still include: linkage rod, slidably be internally provided in through-hole;Movable die assembly is provided with two groups, and is respectively installed in the two ends of linkage rod.The application is cooperated by setting symmetrical double movable die assembly and one fixed die assembly with double cavity, and is equipped with the moving assembly of making double movable die alternate operation, and the equipment realizes the real double position continuous production, when one side position is in injection, pressure maintaining or cooling phase, the other side position can carry out opening mould, ejection demoulding and closing mould preparation etc. action in synchronization, to overlap completely in time with the auxiliary process and main molding process which originally serial, must wait, significantly reduce equipment idle waiting period, greatly improve equipment utilization and production efficiency.

The invention discloses a quick opening and closing control method for a wind shield cover of a ball placing shelter, and relates to an intelligent opening and closing control method for the wind shield cover of the ball placing shelter, which comprises a wind shield cover of the ball placing shelter, a wind shield cover opening step and a wind shield cover closing step, the step of opening and closing the wind shielding cover of the ball placing square cabin comprises the following steps: firstly, the PLC control system issues an instruction for opening or closing the wind shielding cover of the ball placing square cabin; when an instruction is given, wind power data are judged firstly, and when it is detected that the wind power is smaller than 25 meters per second, a wind shielding cover opening instruction is input to the PLC control system; when the wind power exceeds 25 meters per second, a wind shielding cover closing instruction is input to the PLC control system; the servo motor adopted by the invention has a little time delay when stopping running, and meanwhile, when the closing or opening angle reaches 90 degrees or 0 degree, the adjacent speed is controlled to be 8%, so that the wind shield cover is just completely closed through inertia at the last 1 degree, and the wind shield cover of the spherical shelter can be quickly, stably and accurately opened and closed.

This invention discloses an electro-proportional brake valve pressure control system and method. The system includes a controller and a brake valve body, the latter comprising a brushless DC motor, a mechanical transmission assembly, and a pressure component. The control method is based on a target pressure command and feedback hydraulic pressure calculation error, and employs an improved PID control algorithm to generate motor control signals. The improved algorithm mainly includes: amplifying the proportional gain in the low-pressure range to accelerate response; controlling the motor to stop through delay logic to reduce residual pressure when there is zero command and the pressure is below a threshold; and controlling the motor to reverse to disengage from mechanical jamming when motor current protection is detected and the command is zero. This invention effectively improves the dynamic response speed at low pressures, significantly reduces system residual pressure, and possesses self-recovery capability from mechanical jamming, thereby improving the control accuracy and reliability of the brake valve.

The invention provides a device and method for testing the operation state of an actuator in TFT liquid crystal glass production, and the device comprises an actuator testing platform, a fixed support, and an electrical control cabinet, the actuator testing platform is installed at the upper part of the fixed support, and the electrical control cabinet is installed at the front part of the fixed support; the actuator testing platform comprises an actuator, a transmission mechanism is arranged on the actuator, a tool bit base is arranged on the transmission mechanism, and a first limiting detection switch, a second forward rotation detection switch, a third reverse rotation detection switch and a fourth limiting detection switch are sequentially installed on the front portion of the actuator. According to the invention, the operation state and the working state of the actuator in actual production can be highly simulated, the cooperative work among the components is ensured to be optimal, the operation stability and the reliability of the actuator are improved, and the efficiency and the yield of the whole production line are also improved.

The present application relates to the technical field of parking control, and provides a method for controlling the smooth parking of electric mining vehicles. The method comprises: when receiving a stop command, obtaining vehicle and road status data, the vehicle data including load, speed and acceleration, and the road data including slope and flatness. When the speed is greater than or equal to the braking threshold, a combined braking scheme is generated based on the load, speed, acceleration, slope and flatness. When the speed is less than the braking threshold, a motor braking scheme is generated. The scheme is predicted for stability, and if the probability of smooth parking is greater than or equal to the threshold, braking is performed, otherwise the scheme is updated. The present application solves the technical problem that it is difficult for electric mining vehicles to achieve smooth parking under different road surfaces and load conditions, and realizes the combined or separate control strategy of hydraulic braking and motor braking dynamically adjusted through intelligent analysis of the vehicle's operating status and road surface status, so as to improve the parking stability and ensure the safe and stable parking effect of electric mining vehicles.

The invention provides an automatic leveling device and an automatic leveling method for an unmanned aerial vehicle nest, and is applied to the technical field of unmanned aerial vehicles. Running to a target stagnation waiting point to determine a terrain position and ground quality; adjusting the horizontal position and the vertical position of the whole nest according to the ground quality; a sinking threshold value of the overall stagnation mass of the nest and the unmanned aerial vehicle is preset; the final integral horizontal position and vertical position of the nest are obtained; through the automatic leveling device and method, the overall horizontal position and the vertical position of the nest can be automatically adjusted according to the terrain position and the ground quality, it is ensured that the nest stably stops on the ground, and the stopping stability of the unmanned aerial vehicle is improved; through cooperation of the supporting and guiding assembly and the geocentric leveling assembly, the nest can achieve accurate guiding and balance adjustment of the unmanned aerial vehicle, the situation that the unmanned aerial vehicle slides down and is damaged under the condition that the ground is not flat enough or the supporting stability is poor is avoided, and the safety of the unmanned aerial vehicle is improved.