43results about How to "Uniform movement speed" patented technology

The invention discloses a modification processing method of an optical element surface, comprises the following steps: planning a processing and scanning route, converting coordinates, calculating processing dwell time, modifying and processing, converging step by step and the like, is combined with the advantages of an X-Y scanning mode and a rho-theta scanning mode, has the advantages of good stability, strong controllability, simple processing operation and high processing precision, and is especially suitable for the modification processing of the optical element surface of a high gradient workpiece. The invention also discloses a numerical control machine used in the modification processing method, an abrasive disk thereof and a rotation axis thereof are connected with a universal coupling, the rotation axis of a removal function generator is aslant arranged on an engine base in a mode of having an included angle beta with the optical axis of a workpiece to be processed, and the numerical control machine has the advantages of simple structure, low cost and the like.

The invention relates to a vacuum aluminizing method of the surface of a neodymium-iron-boron permanent magnet. The method sequentially comprises the following steps of: (1) polishing and cleaning the surface of the neodymium-iron-boron permanent magnet by adopting a wet method; (2) putting the neodymium-iron-boron permanent magnet on a rotating workpiece fame in a film plating chamber to ensure that the temperature of the neodymium-iron-boron permanent magnet is kept between 250 DEG C and 300 DEG C; (3) starting a vacuum pump on the film plating chamber and adjusting the vacuum degree of thefilm plating chamber to be 1-9*10<-3>Pa; (4) meanwhile, starting multi-arc cathode evaporators at both sides of the film plating chamber, a plane magnetic sputtering target and the rotating workpieceframe to carry out magnetic control multi-arc sputtering for 2-7 hours; (5) maintaining the film plating chamber to be cooled for 30-60 minutes under vacuum, aerating, opening the chamber, taking outthe aluminized neodymium-iron-boron permanent magnet and carrying out passivation with a non-chrome passivation solution. High energy ions generated by magnetron sputtering strike low-energy ions generated by the multi-arc method so as to promote the low-energy ions to generate more ionization, wherein the speeds and the trends of the high-energy ions and the low-energy ions are uniform, thus theefficiency is improved.

The invention discloses a sand screening device which comprises a tank body, a screen net and a power device; the tank body comprises a sand inlet cabin and a power chamber; the upper end and the lower end of the sand inlet cabin are of an opening structure; a cleaning hole is formed in one side of the sand inlet cabin and is provided with a cleaning cover; the cleaning cover is provided with a cover lock; the screen net is arranged in the sand inlet cabin and is of a semicircular cylinder structure; the two ends of the screen net are connected with the inner wall of the sand inlet cabin; thepower device is arranged in the power chamber; the inner wall, adjacent to the sand inlet cabin, of the power chamber is provided with a rotary table; one side of the rotary table is connected with the screen net; the other side of the rotary table is connected with the power device; and the power device is connected with the upper inner wall and the lower inner wall of the power chamber.

The invention belongs to the technical field of transmissions, and particularly relates to a two-speed centrifugal block fixture block transmission. The transmission comprises a mounting plate, a drumwheel, an input shaft, a Z-shaped ring, and an output shaft; when the input shaft rotates, a driving plate rotates to drive arc-shaped strips to rotate, when the arc-shaped strips rotate at a small speed, centrifugal blocks are less affected by centrifugal force, the arc-shaped strips can drive a fixed shaft disc to rotate, and a third fixed shaft, a second one-way ring, a second sun wheel, and second planet wheels drive an annular gear to rotate; the annular gear drives the output shaft to rotate; when the arc-shaped strips move at a high speed, during the movement of a first centrifugal block, when the first centrifugal block contacts with the drum wheel, the first centrifugal block can rub against the drum wheel, the arc-shaped strips drive the drum wheel to rotate through the frictionof the first centrifugal block and the drum wheel, and a Z-shaped wheel rotates to drive the annular gear to rotate through a first one-way ring, a first sun wheel, and first planet wheels; the annular gear drives the output shaft to rotate; and the beneficial effect of two-speed drive is achieved by using a simple structure.

The invention discloses a road side greening laying device and a use method thereof. The road side greening laying device comprises a loading box, a top plate, a bottom plate and a slide plate. The top plate is connected with one side of the top of the loading box. A rotating shaft is horizontally connected between two installation blocks on the two sides. The middle of the rotating shaft is connected with two rotating plates. A rotary shaft is installed in the support in the length direction. The rotary shaft is sleeved with a pressing roller. Side plates are connected into the two ends of the loading box in the height direction. The upper end and the lower end of each side plate are each connected with a horizontal transverse plate. The bottom of a vertical rod is connected with a buckle. The buckle is provided with a positioning wheel. Push plates are connected with the two sides of the upper portion of the slide plate in the length direction respectively, the middle of one side ofthe push plate is connected with the slide plate through a fastening bolt. Turf does not need to be subsequently adjusted by workers after being laid, the laid turf keeps proper distance away from turf on the ground, and too large distance can hardly be left.

The invention discloses an artificial intelligence walking device, comprising a body for carrying children, wheels are arranged on the body, and a driving mechanism is further arranged on the body, which includes an output shaft and a transmission assembly, the transmission assembly It is used to be coupled to the output shaft to drive it forward; a speed-limiting mechanism includes a reduction gear set and a synchronizer, and the synchronizer includes an abutting portion that can movably drive the output shaft to be coupled to the reduction gear on the group, so that the rotational speed of the output shaft is consistent with the transmission rate of the transmission assembly. In the artificial intelligence walking device provided by the invention, when the body is moving downhill, the downhill moving speed is always kept at a constant speed, which ensures that the speed is kept at a speed that adults and children can make timely response and judgment, and avoid rollover, collision and shock. Wait for the unexpected to happen.

The invention discloses a circle-ellipse pitch curve gear planetary system transmission case of a transplanting mechanism, which comprises a gear sun wheel, a planet carrier, a stander, two intermediate gears, two planting arm gears, two planting arms and two seedlings needles; the transmission ratio design of the transmission gear of the transplanting mechanism is suitable for the seedlings transplanting path of the large seedlings; the pitch curve of the elliptic gear is formed by the means that a section of circular curve is in smooth connection with a section of elliptic curve, the seedlings needles are even in moving speed when the seedlings needles are used for pushing the seedlings due to the circular part of the pitch curve, the seedlings needles are lift up after a seedlings pushing rod is used for pushing the seedlings into the mud, the movement locus of the seedlings needles is changed to be small in a plant pit in the mud, and the seedlings laying and the seedlings floating are hardly generated; and the seedlings movement locus has the minimum attack to the seedlings due to the elliptic part of the pitch curve when the seedlings are withdrawn by the seedlings needles, so that the seedlings are hardly injured.

The invention relates to a stepping type escalator glass posted advertisement automatic posting facility. The stepping type escalator glass posted advertisement automatic posting facility comprises a base plate. Two scrubbing devices are symmetrically installed at the front end of the base plate, two winding devices are symmetrically installed on the left side and the right side of the middle of the base plate, two rolling press devices are symmetrically installed in the middle of the base plate, a clipping device is installed on each rolling press device, and four travelling devices are symmetrically installed on the front side and the rear side of the lower end of the base plate. The stepping type escalator glass posted advertisement automatic posting facility can solve the problems that in the process of posting glass posted advertisements on glass protecting plates on the two sides of an existing stepping type escalator, the error of manual clipping of glass posted advertisements is big, the labor intensity of manual scrubbing of the glass protecting plates is high, secondary processing needs to be conducted on the glass posted advertisements, the glass posted advertisements are prone to deforming when the glass posted advertisements are pulled by workers, and time and labor are consumed when workers use scraper plates to clean away bubbles located between the glass posted advertisements and the glass protecting plates, and can fulfill the stepping type escalator glass posted advertisement automatic posting function.

The invention relates to a rolling lever type piston pump, which comprises a support (12), a cylinder block (8), pistons (10), a valve seat (11), a roller seat (6), a plurality of levers (4), a link rod (9), a contact roller (1), a pressure roller (2) and an idler (3). The cylinder block (8) is fixedly mounted on the support (12); in the cylinder block (8), a plurality of piston cavities are provided, in each of piston cavity, a piston (10) is provided; the valve seat (11) is fixedly mounted in the inner hole of the cylinder block (8); the roller seat (6) is fixedly looped on the outer edge of the cylinder block (8); in the middle of the edge of the roller seat (6) and along the periphery, a plurality of lever-installing slots are arranged in equi-spaced way; the levers (4) are arranged in the lever-installing slots; the levers (4) are hinged with the link rod (9), which is hinged with the pistons (10); the contact roller (1) is looped on the periphery of the roller seat (6); the pressure roller (2) and the idler (3) are axially arranged on the inner ring of the contact roller (1), wherein, the middle of the pressure roller (2) contacts with the levers (4) and the outer edge of the roller seat (6), the left and the right edge of the pressure roller (2) contact with the outer edge of the roller seat (6). The invention enables the piston to move evenly, and is applicable for the compression of gas and liquid.