34results about How to "Reduce throw" patented technology

The invention discloses a mechanical hoisting apparatus. The apparatus comprises a pedestal; a rotary table which can rotate horizontally is arranged on the pedestal; a hoist boom is arranged on the rotary table, the hoist boom is provided with the first hoister, and the top of the hoist boom is provided with a pulley for carrying articles; a suspension cable in the first hoister protrudes and extends as well as surrounds a pulley for loading articles at the top of the hoist boom, and the end of the suspension cable is provided with a main suspension hook; the end of the hoist boom far from the rotary table is provided with a horizontally arranged slide arm, and the side arm is provided with an electric hoist which can move along the slide arm. An auxiliary suspension hook which protrudesby the electric hoist is matched with the main suspension hook, in order to realize the effects for facilitating fixation of articles and enhancing stability of fixed articles; compared with the single suspension cable fixed article, the electric hoist and double suspension cables of the first hoister are used for carrying out fixation of double ends of the articles which need to be carried, and judgment of center of gravity of an object and selection of fixed hoisting points, adjustment and other workloads are reduced; inclination resistance and migration capability of the object during air suspension and movement are enhanced, and throwing and falling probability of the object are reduced.

The invention relates to a holding device (12) for use in a motor vehicle (10), characterized by at least one rod-shaped element (16) having a first end (17) with a cross-section surface (18) that forms part of a holding surface (20) of the holding device (12), and wherein a main axis of the at least one rod-shaped element (16) intersects the part of the holding surface (20), in such a way that asecond end (19) of the at least one rod-shaped element (16), which end is opposite to the first end, faces away from the part of the holding surface (20) and protrudes into the holding device (12), and by an adjusting device (22) for adjusting the at least one rod-shaped element (16) along the main axis. The invention also relates to a method for operating a holding device (12). A position suitable for holding an object (28) on the holding device (12, S3) is determined on the basis of the detected shape of the object (28) and a holding element is formed (S5) by adjusting the at least one rod-shaped element (16).

The invention provides a brake. The brake includes a yoke core, a movable plate, a friction disc, a coil, an armature and an elastic member. The yoke core is concentrically distributed with a first installation space and a second The installation groove, the first installation space passes through the center of the yoke core along the axial direction of the yoke core, and the opening of the second installation groove faces the second axial end of the yoke core; The movable plate is located in the first installation space and is close to the first shaft end of the yoke core; the friction disc is arranged in the first installation space and is located in the movable plate close to the first shaft end One side of the two shaft ends; the coil is arranged in the second installation groove; the armature is located at the second shaft end of the yoke core, and the armature is connected to the movable plate through a connecting piece; The elastic member has a pre-tightening force to keep the armature away from the yoke core. The thickness of the brake provided by the invention is relatively thin.

The invention discloses a centrifugal fan for a range hood, which comprises a volute and an impeller arranged in the volute, the impeller includes a plurality of blades, and the profile of the blades includes a first circle smoothly connected at the entrance. arc and a second arc at the exit, said first arc having a radius R 1 , the central angle is α 1 , the radius of the second arc is R 2 , the central angle is α 2 , characterized in that the ratio of the radius of the first arc to the second arc is 3.5≤R 2 / R 1 ≤4, the central angle of the first arc is 85°≤α 1 ≤90°. Select the more reasonable radius and central angle parameters of the two arcs of the blade profile, so that the degree of shrinkage at the outlet of the blade and the narrow length of the blade are larger, the speed of the impeller outlet is larger, and the vortex in the blade channel is less, so as to better adapt to The application environment of the range hood makes it easier for the fumes to be thrown out of the impeller, and there is less eddy current inside the fan.

The present invention provides a brake, which includes a yoke core, a first movable plate, a friction disc, a first coil, a second coil, an armature and an elastic member, and the yoke cores are distributed concentrically from the inside to the outside There are a first installation space and a second installation groove, the first installation space passes through the center of the yoke core along the axial direction of the yoke core, and the yoke core is also provided with a At least one third installation groove provided coaxially with the two installation grooves; the first movable plate is located in the first installation space; the friction disc is arranged in the first installation space and is located in the first movable The side of the plate close to the second shaft end; the first coil is arranged in the second installation groove; the second coil is arranged in the third installation groove; the armature and the first movable The plates are connected by a connecting piece; the elastic piece has a pre-tightening force to keep the armature away from the yoke core. The thickness of the brake provided by the invention is relatively thin.

The invention discloses a dielectrophorisis-basedd retainer eccentric rotating and swinging type cylindrical component double-plane grinding / polishing device. The dielectrophorisis-basedd retainer eccentric rotating and swinging type cylindrical component double-plane grinding / polishing device comprises an upper polishing disk, a retainer and a lower polishing disk, wherein the upper polishing disk is positioned above the lower polishing disk, and the retainer is positioned between the upper polishing disk and the lower polishing disk; the upper polishing disk is provided with a first electrode plate, and the first electrode plate is connected with a first leading-out terminal of an AC (Alternating Current) power supply; the lower polishing disk is provided with a second electrode plate, and the second electrode plate is connected with a second leading-out terminal of the AC power supply; a current input terminal of the AC power supply is connected with a frequency and voltage regulating controller which is used for controlling the voltage and the frequency of the AC power supply. According to the dielectrophorisis-basedd retainer eccentric rotating and swinging type cylindrical component double-plane grinding / polishing device disclosed by the invention, the problem that abrasive grains and polishing liquid are thrown out of a processing area under the action of a centrifugal force can be effectively solved, the polishing liquid is more uniformly distributed in the processing area, the polishing efficiency is increased, and the polishing accuracy is increased.

The invention relates to a pneumatic chain and bucket type feeding machine. The pneumatic chain and bucket type feeding machine is characterized in that an oscillation pin (10) is arranged on one side of a long-strip-shaped rectangular machine frame (6), a chain wheel and chain hopper device (5) oscillates around the oscillation pin (10), a pneumatic motor and reduction box assembly (8) is fixed to a chain wheel mounting support (4), an output shaft (27) of the pneumatic motor and reduction box assembly (8) is a drive shaft of a drive chain wheel (9), an unloading slide way (18) is arranged on one side of the long-strip-shaped rectangular machine frame (6) and located below the drive chain wheel (9), a transverse rod support (11) is arranged on the outer upper side of the end of a driven chain wheel (1) of the chain wheel and chain hopper device (5), a lifting rope (17) is tied to the middle of the transverse rod support (11), whole machine supports (7) are arranged below the long-strip-shaped rectangular machine frame (6), and supporting legs (19) are arranged at the lower portions of the whole machine supports (7) and are in threaded connection with the whole machine supports (7). According to the pneumatic chain and bucket type feeding machine, unloading is carried out automatically, and working efficiency can be improved greatly.

The present invention provides a brake. The brake includes a yoke core, a first movable plate, a plurality of friction discs, a second movable plate, a coil, an armature and an elastic member. The yoke core is concentric in sequence from the inside to the outside. A first installation space and a second installation groove are distributed, and the first installation space passes through the center of the yoke core along the axial direction of the yoke core; the first movable plate is located in the first installation space Inside, and close to the first shaft end of the yoke core; a plurality of friction discs are sequentially arranged in the first installation space along the axial direction of the yoke core, and are all located in the first The side of the movable plate close to the second shaft end; the coil is arranged in the second installation groove; the armature is located at the second shaft end of the yoke core, and the armature is connected to the first movable The plates are connected by a connecting piece; the elastic piece has a pre-tightening force to keep the armature away from the yoke core. The thickness of the brake provided by the invention is relatively thin.

The invention relates to an automatic printing device which comprises a rack. A first printing roller and a second printing roller are rotatably connected to the rack, and the side face of the first printing roller and the side face of the second printing roller are both slidably connected with ink suction blocks; two fixing blocks are connected to the rack and both rotatably connected with rotating shafts, the ends, close to each other, of the two rotating shafts are both connected with transmission rotating pieces, and an ink tank is arranged on the lower portions of the transmission rotating pieces; two directly facing planetary rotating pieces are engaged between the two transmission rotating pieces, and a connecting shaft is arranged between the two planetary rotating pieces; the twoends of the connecting shaft are rotatably connected with a first rotating part and a second rotating part correspondingly, and the first rotating part and the second rotating part are fixedly connected with the two planetary rotating pieces correspondingly; the middle of the connecting shaft is connected with a driving mechanism enabling the connecting shaft to rotate, and linkage mechanisms areconnected between the ends, away from the transmission rotating pieces, of the two rotating shafts and the first printing roller as well as between the between the ends, away from the transmission rotating pieces, of the two rotating shafts and the second printing roller correspondingly. According to the automatic printing device, a to-be-printed object with the bent surface and the large thickness is printed.