49results about How to "Small model" patented technology

The invention relates to a single beam girder erecting machine, which comprises a girder, a trolley, a front landing leg and a rear landing leg. Four H beams are connected with steel plates to form a single beam girder. The H beams at the lower end of the girder are provided with square steel rails. A trolley is arranged on the square steel rails on the H beams at the lower end of the girder in a through suspended mode. The front landing leg is a single landing leg. Both the rear landing leg and a middle landing leg are O-shaped landing legs. The front landing leg is pressed against the girder in the working process. Both the rear landing leg and the middle landing leg are connected with the girder through high strength bolts. Due to the adoption of a through suspended structure, the single beam girder erecting machine has low height, can pass through a tunnel smoothly, has a small machine type, light weight and uniform and low wheel pressure and is convenient to assemble, disassemble and maintain. When being carried and transported by a girder transporting vehicle, the erecting machine is only needed to be disassembled partly. Big and small trolleys can move longitudinally and transversely. A track gauge can be adjusted. The single beam girder erecting machine can be used for erecting a full-span single or double wire box girder.

The invention relates to a hand press. In order to solve the problems that the prior hand press has a complex structure and high manufacturing cost, the invention provides the hand press. The hand press comprises a stand, an upright post fixed on the stand and a pressing device fixed on the upright post; the pressing device comprises a manual pressure lever, a connecting rod, a pressure lever and a guide member; the guide member is fixedly connected to the upright post and provided with a guide part for guiding the pressure lever to slide only in the vertical direction; one end of the manual pressure lever is a handheld end, and the other end of the manual pressure lever is rotationally connected with the upright post or the guide member; and one end of the connecting rod is rotationally connected with the manual pressure lever, and the other end of the connecting rod is rotationally connected with the top end of the pressure lever. The hand press has the advantages of simple structure, low manufacturing cost, convenience for carrying, and the like.

The invention discloses a permanent magnetic classificator. The permanent magnetic classificator comprises a main frame, a power frame, a coupler, a speed reducer, a motor, a bearing pedestal, a support seat and a magnetic system adjustment device, also comprises a magnetic cylinder device composed of a magnetic cylinder, a seal cover, a magnetic system, a magnetic system shaft and helical blades, and also comprises a feeding device, an ore washing tank, an ore unloading plate, an ore discharge tank, a concentrate unloading hopper, a tailing unloading hopper, an ore washing water pipe with small water spray drill holes, and an ore unloading water pipe with small water spray drill holes. The helical blades are welded to the outer periphery of the magnetic cylinder. The magnetic system has 360 degrees of a magnetic wrap angle in the magnetic cylinder and has 270 degrees of a magnetic wrap angle close to the concentrate unloading hopper. Permanent magnets of the magnetic system are arranged on a magnet base from left to right in a ladder shape in an NS screw type and form a screw-type magnetic circuit. The permanent magnetic classificator is suitable for a large-scale production flow process, reduces an investment and a cost, can screen iron ores having a good grade, can be operated simply, is light, has a small covering area, saves energy and is convenient for operation and maintenance.

The invention discloses a book positioning method based on an inventory robot, comprising the following steps: S1. Data collection: the robot obtains the electronic label of the book by using the RFID identification technology, and transmits the electronic label of the book together with the robot coordinates and the antenna height to the processor module ;S2. Data processing and conversion: extract the book code from the electronic label, store the electronic label, book code, robot coordinates, and antenna height in the data storage module, read the data through the processor, and replace it in the form of an array matrix , and average processing for each data; S3. Book positioning: input the data processed by S2 into the book positioning module, find the position label through the network model, and transmit the position label and book information together to the data reading module Book positioning is realized in the middle of the invention, and the present invention utilizes the network model to perform feature extraction, which can locate the position of books more accurately and quickly, greatly reduces the workload of librarians, and improves work efficiency.

The invention relates to the technical field of agricultural machinery, in particular to a small-line-spacing corn harvester header which comprises spike picking roller groups, a longitudinal corn sliding plate, a longitudinal conveying auger and a corn spike collecting tank. The small-line-spacing corn harvester header is characterized in that an installation panel is installed on a machine frame, the spike picking roller groups are installed on the panel and integrally welded with the machine frame, different groups of spike picking rollers are different in length and height, the short spike picking rollers are arranged at the low positions, the long spike picking rollers are arranged at the high positions, and the power of the spike picking rollers are input from the rear end. The longitudinal corn sliding plate is installed on the machine frame, the upper portion of the longitudinal corn sliding plate is covered on the upper surfaces of the short spike picking rollers on two sides, a conveying tank of the longitudinal conveying auger is arranged on the lower portion of the longitudinal corn sliding plate, and the power of the longitudinal conveying auger is input from the front end. Corn spikes of the longitudinal conveying auger fall into the corn spike collecting tank. In working, corns are picked off through the spike picking roller groups on two sides and slide into the longitudinal conveying auger along the longitudinal corn sliding plate, then the corns are conveyed to a following conveying device to be conveyed to a corn collection box, and one working cycle is finished.