36results about How to "No scrolling" patented technology

A speaker includes: a magnetic circuit; a voice coil bobbin; a voice coil; a diaphragm; a frame to which the outer circumference of the diaphragm is connected via a suspension; and a spider to support the center area of the diaphragm. A magnet unit, a pole piece, a pole piece, and a yoke are included in the magnetic circuit. The yoke has a ring shape with a center opening, and is disposed at the rear of the magnet unit. The magnet unit has a ring structure having a plurality of empty portions arranged equiangularly, and the spider includes a main body and a plurality of legs extending radially outwardly from the main body and is disposed inside the magnetic circuit such that distal end tips of the legs pass beyond the inner diameter of the ring structure of the magnet unit.

The invention belongs to the field of motor production, and particularly relates to a rotor feeding device. The rotor feeding device comprises two supporting frames arranged on a machine base in a spaced mode. The upper ends of the two supporting frames are provided with positioning grooves correspondingly. The motor feeding device further comprises two movable frames arranged in a spaced mode. The length direction of the movable frames is parallel to the length direction of the supporting frames, and the upper ends of the movable frames are provided with clamping grooves. The movable frames are arranged on a lifting unit. The lifting unit drives the movable frames to achieve two position states. According to one position state, when the movable frames are driven to ascend to the highest position, the bottoms of the clamping grooves are higher than the upper end faces of the supporting frames. According to the other position state, when the movable frames are driven to descend to the lowest position, the upper end faces of the movable frames are lower than the bottom of the positioning grooves of the supporting frames. The movable frames are further connected with a transportation unit. The transportation unit drives the movable frames to displace in the horizontal direction, and the positioning grooves and the clamping grooves are in the staggered position or the same position. A rotor is transported from one position to the other position by utilizing the clamping grooves and the positioning grooves, rotating shafts at the two ends of a rotor iron core are accurately positioned, the phenomenon of material clamping in the rotor transportation process is fundamentally and completely eradicated, and it is ensured that the rotor can be normally transported.

The invention provides a support arm moving and grinding device based on overhead working truck manufacturing, relates to the field of grinding, and aims to solve the problems that when different grinding requirements are met, a grinding mechanism is not convenient to mount and maintain, a multi-gear grinding force adjusting structure is lacked, and when slight grinding is needed, a heavy block is not convenient to add for stress grinding. The support arm moving and grinding device comprises a moving part, the bottom of the moving part is of an arc-shaped structure, a threaded hole is formed in the bottom of the moving part, a moving table comprises an adjusting plate, two round holes are formed in the adjusting plate, guide rods are inserted into the round holes, the bottom of the adjusting plate makes contact with the top ends of springs on the outer sides of the guide rods, and the adjusting plate is inserted into limiting grooves. When the grinding force needs to be adjusted, the inner end of the adjusting plate can be controlled to be inserted into the limiting grooves in different positions, so that the springs are compressed to different degrees, the moving table is pulled through different force, and thus the force of the moving table can be adjusted for grinding.

The invention relates to a round-belt side-supporting type optical fiber disc delivery mechanism. The mechanism comprises a rack, the rack comprises two side frames which are distributed in the longitudinal direction, the side frames are provided with belt supporting holding cross beams, driving belt wheels located below the belt supporting holding cross beams, delivery motors used for driving thedriving belt wheel to rotate, round conveying belts and driven belt wheels which are located at the two ends of the belt supporting holding beams, the round conveying belts are connected with the driven belt wheels and the driving belt wheels, the round conveying belts are supported and held by the belt supporting holding cross beams, an optical fiber conveying groove is formed in the part between the two side frames, belt limiting grooves which extend in the extending directions of cross supporting beams are formed in the cross supporting beams, and the round conveying belts are accommodatedin the belt limiting grooves and are protruded out of the belt limiting grooves. The optical fiber disc delivery mechanism has the advantages that rolling can be prevented in the optical fiber disc process without needing supporting discs, and the problems of the increasing of the working intensity caused by the prevention of the rotation of the optical fiber discs when the optical fiber discs are contained in the supporting discs to be delivered of existing optical fiber disc delivery mechanisms and the need of adding spatial storage supporting discs are solved.

The invention belongs to the field of motor production, and particularly relates to a rotor feeding device. The rotor feeding device comprises two supporting frames arranged on a machine base in a spaced mode. The upper ends of the two supporting frames are provided with positioning grooves correspondingly. The motor feeding device further comprises two movable frames arranged in a spaced mode. The length direction of the movable frames is parallel to the length direction of the supporting frames, and the upper ends of the movable frames are provided with clamping grooves. The movable frames are arranged on a lifting unit. The lifting unit drives the movable frames to achieve two position states. According to one position state, when the movable frames are driven to ascend to the highest position, the bottoms of the clamping grooves are higher than the upper end faces of the supporting frames. According to the other position state, when the movable frames are driven to descend to the lowest position, the upper end faces of the movable frames are lower than the bottom of the positioning grooves of the supporting frames. The movable frames are further connected with a transportation unit. The transportation unit drives the movable frames to displace in the horizontal direction, and the positioning grooves and the clamping grooves are in the staggered position or the same position. A rotor is transported from one position to the other position by utilizing the clamping grooves and the positioning grooves, rotating shafts at the two ends of a rotor iron core are accurately positioned, the phenomenon of material clamping in the rotor transportation process is fundamentally and completely eradicated, and it is ensured that the rotor can be normally transported.

The invention relates to a round belt side-support type optical fiber disc conveying mechanism capable of rectifying. The round belt side-support type optical fiber disc conveying mechanism capable ofrectifying comprises a rack, wherein the rack comprises two side frames which are longitudinally distributed, the side frames are provided with belt supporting beams, drive belt wheels arranged belowthe belt supporting beams, conveying motors, round conveyor belts and driven belt wheels; the round conveyor belts are connected onto the driven belt wheels and the drive belt wheels; the round conveyor belts are supported by the belt supporting beams; an optical fiber disc conveying slot is formed between the two side frames; and a plurality of optical disc rectifying mechanisms which are transversely distributed are arranged in the optical fiber disc conveying slot. The invention provides the round belt side-support type optical fiber disc conveying mechanism capable of rectifying, which can avoid rolling in an optical fiber disc conveying process without a tray, and solves the problem that workload is increased and space needs to increase for storing the tray as an existing optical fiber disc conveying mechanism contains an optical fiber disc through the tray to convey for preventing the optical fiber disc from rotating.

The invention relates to a flat-belt side-supported optical fiber reel conveying mechanism capable of correcting deflection, which includes a frame, and the frame includes two side frames distributed along the longitudinal direction. The belt includes a driving conveying roller, a driven conveying roller, a conveying motor that drives the driving conveying roller to rotate, and a flat belt with a rectangular cross section arranged on the driving conveying roller and the driven conveying roller. The flat belt has a circular structure, so An inverted "eight" shaped optical fiber tray delivery trough is formed between the conveyor belts on the two side frames, and several optical fiber tray deviation correction mechanisms distributed along the transverse direction are arranged in the optical fiber tray delivery trough. The invention provides a flat-belt side-mounted optical fiber reel conveying mechanism that can prevent the optical fiber reel from rolling without a tray, and solves the problem that the existing optical fiber reel conveying mechanism transports the optical fiber reel through the tray. Prevent the increased workload caused by the rotation of the fiber optic tray and give the need to increase the space to store the tray.

A dual-input characteristic testing system for a servo valve, including a measurement and control system and a test bench. The servo valve to be tested is installed on the working table of the test bench. An actuator is installed on the test bench, and the servo valve to be tested is driven by a loading signal. The actuator generates a displacement proportional to the loading signal, and feeds back to the mechanical feedback displacement input terminal of the servo valve under test; the measurement and control system includes the digital logic circuit of the lower computer and the human-computer interaction interface of the upper computer, and the user inputs the loading through the human-computer interaction interface of the upper computer. signal, the digital logic circuit of the lower computer converts the loading signal into a constant current source, applies it to the electric input terminal of the servo valve under test, and collects the displacement of the mechanical feedback displacement input terminal of the servo valve under test, and feeds it back to the human-computer interaction interface of the upper computer for further processing. Display, for the user to judge whether the dual-input characteristics of the servo valve meet the requirements. The invention can realize the function of separately testing the double-input characteristic of the servo valve, and achieves the purpose of judging the performance of the double-input characteristic.

The invention relates to a circular belt side support type optical fiber tray conveying mechanism capable of correcting deflection, which includes a frame, the frame includes two side frames distributed along the longitudinal direction, the side frames are provided with a belt supporting crossbeam, and an active belt below the belt supporting crossbeam Pulley, conveying motor, round conveyor belt and driven pulley, the round conveyor belt is connected to the driven pulley and the driving pulley, the belt supporting beam supports the round conveyor belt, and the fiber optic disc conveying groove is formed between the two side frames, and the fiber optic There are several optical fiber disk deviation correcting mechanisms distributed along the transverse direction in the disk conveying groove. The present invention provides a round-belt side-mounted optical fiber reel conveying mechanism that can prevent the optical fiber reel from rolling without a tray, and solves the problem that the existing optical fiber reel conveying mechanism transports the optical fiber reel through the tray. Prevent the increased workload caused by the rotation of the fiber optic tray and give the need to increase the space to store the tray.

A wheeled cane for the elderly, including a rear wheel assembly, a rear outrigger rod vertically fixed on the rear wheel assembly, a foldable support seat frame connected to the rear outrigger rod and capable of being folded and opened, and a foldable support seat frame The front universal wheel at the bottom and the steel wire brake assembly for braking the rear wheel assembly are equipped with a centrifugal brake assembly that can perform centrifugal braking for the rear wheel assembly. In the wheeled cane for the elderly provided by the present invention, when the speed exceeds the predetermined maximum speed, the centrifugal brake assembly will generate centrifugal force and perform centrifugal motion to brake the rear wheel assembly, so as to prevent danger or inconvenience to the user due to excessive speed. High safety; the brake pads can generate great frictional resistance to the wheels under a small pressure, and the brakes are more reliable, ensuring that the wheels will not roll under braking, and the safety and reliability are higher; the user can according to Use needs to lock or open the centrifugal brake function, humanized design, more optional functions for use.

The invention discloses automatic equipment and method for achieving high-speed laser marking and discharging packaging. The automatic equipment comprises a vibration disc, a control cabinet, a discharging sliding rail, a height adjusting mechanism, a mounting column, a laser marking head, a displayer and a conveying mechanism. The discharging sliding rail is obliquely mounted above the control cabinet through the height adjusting mechanism. The mounting column is mounted on the control cabinet. The laser marking head and the displayer are mounted on the mounting column. The vibration disc is arranged at the high end of the discharging sliding rail. The conveying mechanism is mounted at the lower end of the discharging sliding rail. According to the automatic equipment for achieving high-speed laser marking and discharging packaging, automatic feeding, automatic marking, automatic counting and discharging packaging of nuts are combined together, meanwhile marking is conducted in a double-row manner, and high-speed marking can be achieved effectively.

The invention relates to a holding device for a magnetic inflatable bottle used in a soda machine and the soda machine. Magnetic bottle holder that uses magnetism to hold and release CO 2 Inflatable bottle for easy CO 2 The replacement of the gas bottle is easy to operate and has high replacement efficiency. The safety mechanism of the soda machine of the present invention includes more than two pressure release channels, the pressure release is fast and balanced, and the safety is higher, and the release pressure threshold is adjusted by using the elasticity of the silicone sleeve and the change of the position and diameter of the release hole, the structure is simple, and Easy to control. The soda bottle of the soda water machine of the present invention has a longitudinal truncated plane on the bottle cap and the outer cylindrical surface of the bottle body, so that it is easy to twist and hold, the design is economical, and it is not easy to roll when placed horizontally. At the same time, the large mouth diameter makes filling and pouring easier.

The invention provides a mobile grinding device based on an aerial work vehicle, which relates to the field of grinding, to solve the problem of inconvenient installation and maintenance of the grinding mechanism and the lack of multi-level adjustment of grinding force when facing different grinding requirements. The structure, when light grinding is required, it is inconvenient to add heavy blocks for forced grinding, including the moving part, the bottom of the moving part is an arc structure, the bottom of the moving part is provided with threaded holes, and the moving table includes : Adjusting plate, the inside of the adjusting plate is provided with two round holes, the inside of the round hole is inserted with a guide rod, the bottom of the adjusting plate is in contact with the spring top on the outside of the guide rod, and the adjusting plate is inserted into the inside of the limiting groove. When it is necessary to adjust the grinding force, the inner end of the adjusting plate can be controlled to be inserted into the limit groove at different positions, so that the spring is compressed to different degrees, and the mobile platform can be pulled by different forces, so that the mobile platform can adjust the force for grinding. cut.

The invention discloses a test device for testing flow characteristics of liquefied sand and a test method. The device comprises a vibration platform and a model box. Plastic face plates are adopted on two lateral faces of the model box, a horizontal rail is respectively arranged at the symmetrical positions of the plastic face plates, and a rigid circular pipe is placed between the rails. A steel wire rope is led out from the rigid circular pipe and connected with and pulls a force sensor, leads out the model box, then is connected with a dynamic displacement sensor, and finally is connected to a positive and reverse speed regulation motor. The test method comprises enabling saturated sand in the model box to achieve a liquefied state through the vibration platform, the motor drives the steel wire rope and then guides the rigid circular pipe to perform horizontal movement on the rails to measure the speed of the movement of the rigid circular pipe and horizontal tension force exerted on the rigid circular pipe, so that apparent viscosity of the liquefied sand is calculated, and the flow characteristics of the liquefied sand are analyzed. The test device for testing flow characteristics of the liquefied sand and the test method has the advantages of being high in efficiency, small in boundary effect and the like.

The invention discloses a novel assembled hanger. By setting the bottom frame, there are multiple partitions movable in the bottom frame, which can be used to hoist small-sized hoisting materials, and use the extrusion of the partitions to fix them to prevent them from slipping during hoisting Case. In the present invention, a pressing plate is provided on the movable sleeve of the vertical bar, and the downward extrusion of the pressing plate can be used to compress the large-size material hoisted on the fixed plate, so that the safety of the hanger hoisting is higher, and it also improves Lifting efficiency. The invention is a special hanger for small assembly-type building components, which can simultaneously meet the hoisting needs of larger components. The invention has the characteristics of simple structure, convenient operation, wide application range, safety and reliability.