39results about How to "Novel and practical structure" patented technology

The invention discloses a feed crushing and stirring device, which belongs to the technical field of feed processing equipment and aims to solve the problem of waste caused by sticking feed on the inner wall of the feed crushing device. The present invention comprises a tank body, a first transmission shaft and a second transmission shaft are arranged at the same height in the tank body, crushing rollers are arranged on the first transmission shaft and the second transmission shaft, and a second transmission shaft is provided at a position different from the first transmission shaft. Three transmission shafts, three groups of transmission shafts are connected in sequence through the transmission chain; the side wall of the tank body is also provided with a guide rail frame along the vertical direction, and the guide rail frame is embedded with a first slider that can slide in the guide rail of the guide rail frame. The block is connected with a cleaning frame, and one side of the cleaning frame is provided with a cleaning plate, and the cleaning frame is provided with a groove along the length direction of the cleaning frame, and the groove is embedded with a second slide block that can slide in the groove, and the second slide block Hinged on the conveyor chain. The invention drives the cleaning frame to move up and down through the running transmission shaft so as to clean the inner wall of the tank.

The present invention relates to a maize ear-picking roller. It is characterized by that on the surface of the ear-picking roller a dentation structure is set, i.e. the surface of every ear-picking roller has uniformly-distributed matrix array convex teeth which are arranged in the form of axial-lines and radial-columns and identical concave teeth. Two ear-picking rollers are combined together to form a pair of ear-picking roller to implement ear-picking operation. Said invention also provides their mounting method and concrete operation method.

The invention provides an image-type device and a method for quantitative determination of infrared reflectivity and transmissivity. The method comprises firstly calibrating the reflectivity and the transmissivity of calibration cards with a plurality of different reflectivity or transmissivity, secondly collecting reflected and transmitted images of the calibration cards and to-be-detected objects under illumination of infrared LED light sources, and performing linearity interpolation in accordance with the reflectivity values and the transmissivity values of the calibration cards to obtain the reflectivity values and the transmissivity values of the to-be-detected objects at any positions in an imaging area, thereby realizing the quantitative determination of the reflectivity and the transmissivity. According to the invention, the above detection can be carried out for prints printed with infrared ink or white watermark, and thus printing quality can be effectively controlled. The method and the device are convenient and fast, flexible in function, and strong in expansibility, and can adjust optical devices and software configuration of host computers for different applications, thereby achieving detection requirements.

The invention relates to a wood-plastic base composite floor with a solid wood panel, comprising a base plate and a panel; the wood-plastic base composite floor is characterized in that: the base plate is made of wood-plastic material, and the panel is made of solid wood, the base plate is connected with the panel in a molding-injection way. In the technical proposal of the invention, particularly, the base plate is made of the wood-plastic material, the panel is made of solid wood and the base plate and the panel are connected in a molding-injection way, the invention has the beneficial effects that the structure is novel and practical, wood is saved, the application range is wide, the floor is helpful to environmental protection, the cost is low and the usage is convenient.

The invention relates to a novel sliding main shaft structure which comprises a long shaft body and a plurality of sliding columns arranged at one end of the long shaft body. A positioning ball socketis arranged in the middle of the end face of the side, provided with the sliding columns, of the long shaft body, the long shaft body comprises a sliding column connection section, a bearing connection section I, a bearing connection section II, a thread section and a spline tooth section, a lubricating oil hole is formed in the portion, between the bearing connection section I and the bearing connection section II, of the long shaft body, a long hole is formed in the bottom of the positioning ball socket, and the long hole communicates with the lubricating oil hole. The novel sliding main shaft structure is novel in structure, practical, flexible and convenient to use and high in tensile strength.

The invention discloses a steam combustion-supporting boiler. The steam combustion-supporting boiler comprises a boiler and a pressure balance valve, wherein the boiler is provided with a water cavity and a hearth; a water tank is arranged outside the boiler; the hearth is provided with a steam generation device; the steam generation device comprises a heating pipe, a steam drum and a steam spray pipe; the pressure balance valve comprises a valve body and a valve core; the valve body is provided with a valve body cavity; the left end of the valve body is provided with a steam joint, and the right end of the valve body is provided with a threaded joint; the steam joint is communicated with a space above the water surface in the cavity of the water tank; a valve core is arranged in the valve body cavity; the valve body is provided with a water inlet and a water outlet; the valve core is a shaft which is provided with an annular groove; a pressure adjusting bolt and a pressure adjusting spring are arranged in the threaded joint; a cooling water pipe is arranged in the space above the water surface of the cavity of the water tank in a penetrating manner; a water inlet end of the cooling water pipe is communicated with the lower end of the water cavity through the pressure balance valve, and a water outlet end of the cooling water pipe is communicated with the upper end of the water cavity. According to the steam combustion-supporting boiler, the steam pressure of the steam drum is kept at constant pressure, so that the combustion of the boiler is kept in a stable state, the time and the labor are saved, and the boiler is convenient to use.

The invention discloses a large-flow check valve for a filter. A valve body (9) is connected with an oil return filter, a cover plate (7), a support pipe (5), a spring (4) and a pressure plate (3) are installed in the valve body (9) and stringed together by a bolt (6), opening pressure is fixed and regulated by a locknut (2), and an opening pin (1) is also installed at the end of the bolt (6) so as to prevent the bolt (6) from dropping. With the adoption of the large-flow check valve, the structure is novel and practical, pressure drop of a flow is small, oil passing capability is strong, and the requirements for adding the oil return filter of an engineering machinery hydraulic system can be satisfied.

The invention relates to a portable flaw detection device for a steel wire rope. The device comprises a housing consisting of a fixed shell and two movable shells, an excitation shielding unit, a detection induction unit for inducing magnetic signals of the excitation shielding unit, a stroke computing unit, a guide maintaining unit for controlling the advancing direction of the detection device and a portable instrument which is internally provided with a power supply. The device provided by the invention is novel and practical in structure, convenient to carry manually and simple to install and operate; synchronous flaw detection in once mounting can be realized, and disassembly and conversion are not needed; the signal to noise ratio in detection is effectively improved by means of an advanced and reliable magnetic shielding anti-jamming technique; the repeatability and the stability of flaw detection results are good, the detection precision is remarkably enhanced, and the misjudgment rate of flaws is greatly reduced.

The invention belongs to the field of equipment for processing crystal workpieces. Equipment for grinding a crystal ball comprises a stander, and two handpieces, a linear guide rail, a rack, a first millstone driving device, a first millstone, a second millstone driving device and a second millstone with a grinding function different from that of the first millstone which are arranged on the stander, wherein a dustproof and waterproof telescopic guide rail sheath is sleeved on the linear guide rail; and wire boxes for accommodating connection wires are arranged between the stander and the two handpieces. The equipment for grinding the crystal ball has the advantage of novel structure, has functions of rough grinding, fine grinding and polishing, and is high in production efficiency and processing precision.

A connecting rod transmission mechanism for a non-pressure damper for mining. A planar link mechanism is installed inside the upper horizontal frame of the non-pressurized damper. Composition, the rocker is set at both ends of the plane linkage mechanism, and the two rockers are respectively connected with the fulcrum shaft of the rocker; the connecting rod connects the two rockers as a whole through the fulcrum shaft of the connecting rod; Rotating parts at both ends of the upper horizontal frame of the air door fix the plane linkage mechanism inside the upper horizontal frame of the non-pressure air door to form a built-in linkage transmission mechanism. When any one of the two leaves of the non-pressure air door is opened or closed, the other door leaf can be opened or closed synchronously and in different directions through the built-in transmission mechanism. The invention has the advantages of novel and practical structure, flexible opening, small volume and small occupied space, and is suitable for underground use in coal mines.

The invention discloses a bulk material bidirectional turning conveying system. The system is characterized in that the system comprises two conveyors with same structures; front frame body and rear frame body of the conveyor are mutually hinged through a hinge pin; a telescopic frame is arranged on the front frame body of the conveyor; and the front frame body is driven through a pneumatic or electric pull rod to rotate around the hinge pin. The system has a novel and practical structure, can realize the bidirectional turning conveying of bulk material through the matching of stretching variation and altitude variation at the end part of a position where the two bidirectional conveyors are connected, and has significance in the respects of reducing the investment, improving the utilization rate of equipment and improving the loading and unloading operation efficiency of bulk material.