11results about How to "Reduce alignment requirements" patented technology

The invention relates to the technical field of silo grain storage engineering, and particularly discloses a construction process of a conical silo top of a large-diameter squat silo, which comprises the following steps: step 1, lifting a steel truss to a height not lower than the mounting position of a bracket, and then fixedly mounting the bracket on an embedded threaded pipe on a silo wall; secondly, a supporting plate of the bracket is fixedly connected with a stress plate fixed to the radiation beam through a bolt; wherein a plurality of mounting holes are formed in the supporting plate of the bracket, a plurality of matching holes are formed in the stress plate, fixed connection is achieved by inserting bolts into the mounting holes and the matching holes, and the mounting holes and / or the lap joint holes are adjusting holes. And thirdly, formworks are installed on the steel trusses, steel bars are bundled, then the silo top is poured, and during pouring, according to the principle of first bottom and then top, the lower ring beam connected with the silo wall is poured firstly, then the conical shell is poured, and finally the center of the silo top is poured. The scheme is used for solving the problems that disassembly is time-consuming and secondary utilization is affected due to welding of the steel truss and the bracket at present.

The invention relates to a self-lubricating multidirectional compensation coupling device, which relates to the field of coupling technical equipment, and comprises a first half coupling, a second half coupling is arranged on one side of the first half coupling, and the end part of the second half coupling extends into the first half coupling. A flexible gear sleeve is arranged between the first half coupling and the second half coupling, the outer side wall of the flexible gear sleeve is connected with the first half coupling, and the inner side of the flexible gear sleeve is connected with the second half coupling. The coupling has the advantages that the problems that an existing coupling is high in centering requirement, complex in field installation, incapable of absorbing different coaxiality and large-degree angle inclination in a mechanism and poor in buffering performance are solved.

The invention discloses a coating head cleaning device. The coating head cleaning device comprises a spraying assembly and a wiping assembly. The spraying assembly is used for spraying cleaning liquid to the coating head. The wiping assembly comprises a clamping mechanism and a floating mechanism, the clamping mechanism can be attached to the two sides of a coating lip of the coating head and used for removing the cleaning liquid and / or the coating liquid, and the spraying assembly and the wiping assembly can move relative to the coating head. Wherein the floating mechanism comprises a bottom plate, a guide rail and a sliding block, the guide rail is arranged on the bottom plate, the sliding block is connected with the clamping mechanism, and when the coating head makes contact with the clamping mechanism, the sliding block can drive the clamping mechanism to move in the direction perpendicular to the length direction of the coating head along the guide rail, so that the clamping mechanism is attached to the two sides of a coating lip of the coating head. The cleaning device not only can automatically clean the coating head, but also can be suitable for cleaning coating liquid with different viscosities, and meanwhile, the alignment requirement of the coating head and the wiping assembly can be lowered.

This invention discloses a photovoltaic cell string manufacturing equipment, which includes a feeding mechanism, a ribbon feeding mechanism, a fixture loading and unloading mechanism, a welding mechanism, a coating and curing mechanism, and a cell string conveying mechanism. Through a traction mechanism and a robotic arm, multi-strand ribbons cut to the required process length and cell sheets are sequentially placed, allowing adjacent cells to be pre-welded into a cell string by the multi-strand ribbons on their front and back sides. In subsequent processes, adhesion points are coated on the front and back of the cell string, and curing thoroughly eliminates the risk of poor overlap. This eliminates the need for composite films and PAD points on the front and back of the cells, reducing shading on the photovoltaic cell surface and the use of silver paste, thus significantly reducing costs.

The invention provides a preparation method of a terahertz traveling wave tube based on an electron beam gasification chambering technology and the terahertz traveling wave tube, and the preparation method comprises the steps: machining an initial electron channel in a high-frequency interaction assembly, and enabling the diameter of the initial electron channel to be smaller than the design diameter of an electron beam; centering and welding the high-frequency interaction assembly and the electronic gun; carrying out vacuumizing operation on the terahertz traveling wave tube through a vacuum exhaust furnace; the electron gun is started, the anode is used for accelerating the electrons for the first time, high voltage is applied to the tube body of the high-frequency interaction assembly for accelerating the electrons for the second time, and the high voltage is larger than the voltage of the anode; wherein the material on the peripheral side of the initial electron channel is gasified and extracted by using the electrons subjected to secondary acceleration.

The invention belongs to the technical field of constructional engineering, and particularly relates to a mounting structure of an assembly type dense rib floor system body and a construction method thereof.The mounting structure comprises a dense rib prefabricated bottom plate, and the dense rib prefabricated bottom plate is composed of dense rib prefabricated bottom plate ribbed beam overhanging steel bars, dense rib prefabricated bottom plate ribbed beams and dense rib prefabricated bottom plate ribbed beam stirrups; external threads are machined at the ends of the dense rib prefabricated bottom plate ribbed beam overhanging steel bars, and the two dense rib prefabricated bottom plate ribbed beam overhanging steel bars are connected through a steel bar connector; according to the steel bar connector, when the prefabricated parts are connected, the steel bars do not need to be rotated, only the pre-tightening bolts need to be installed in the bolt holes reserved in the upper connector and the lower connector, the pre-tightening force needs to be applied, and therefore reliable thread pair connection is formed between the internal threads of the upper connector and the lower connector and the external threads of the steel bars of the prefabricated parts; the connection mode is not affected by the construction environment, installation is convenient, connection is reliable, and cost is low.

The invention provides a base station, cleaning equipment and a cleaning system, the base station is used for the cleaning system, the cleaning system comprises the base station and the cleaning equipment, the base station comprises a body and a pickup assembly, the body is provided with a containing bin, and the containing bin is used for containing the cleaning equipment; and the pickup assembly is arranged above the accommodating bin, is movably arranged relative to the body, and is used for picking up a first battery pack of the cleaning equipment so as to carry out battery replacement on the cleaning equipment. According to the invention, the alignment difficulty of the cleaning equipment during battery replacement can be reduced, so that the alignment requirement of battery replacement operation on the cleaning equipment can be reduced.

The utility model relates to the technical field of rainfall sensing, and provides a light ray rainfall sensor, which comprises a silica gel pad, a lens, an upper shell, a circuit board and a lower shell, an infrared transmitter and an infrared receiver are arranged on the circuit board, the lens is arranged in the upper shell to realize light conduction between the infrared transmitter and the silica gel pad and between the silica gel pad and the infrared receiver, and the infrared receiver is arranged in the lower shell. The light guide side of the lens is provided with a light condensation part and a first reflection part, the light condensation part is arranged on one side, near the infrared receiver, of the infrared transmitter, the light condensation part is in a convex mirror shape, and the convex surface of the light condensation part faces the infrared transmitter; the first reflecting part is arranged on the side, far away from the infrared receiver, of the infrared transmitter, the first reflecting part is in an arc shape, an arc opening of the first reflecting part faces the infrared transmitter, the inner arc face of the first reflecting part is a refraction face, and the outer arc face of the first reflecting part is a reflecting face. According to the lens, the first reflecting part is arranged on the light guide side, the inner arc surface of the first reflecting part is the refracting surface, and the outer arc surface of the first reflecting part is the reflecting surface, so that the alignment requirement of the infrared transmitter and the light condensing part is reduced.

The present invention discloses an automatic flipping device for a flexible circuit board printer, comprising a flipping mechanism bracket arranged on one side of the flexible circuit board printer, a rotating shaft driven by a flipping motor to rotate on the flipping mechanism bracket, a positioning plate fixed on the rotating shaft, and an adsorption platform arranged at the bottom of the positioning plate through a buffer component; wherein the buffer component comprises a guide sleeve fixed on the upper surface of the adsorption platform and a spring guide column moving up and down in the cavity of the guide sleeve; wherein the top end of the spring guide column is fixed on the positioning plate, an upper limit piece is fixed on the upper outer edge of the spring guide column to form support for the guide sleeve in the flipping state, a lower limit piece is fixed on the lower outer edge of the spring guide column, and a spring is installed between the lower limit piece and the constriction at the top end of the guide sleeve. The buffer adsorption table can be used as a bearing table.

The application relates to the technical field of plasma detection, in particular to a double-channel ion energy probe based on a magnetic deflection effect. The application provides a double-channel ion energy probe based on a magnetic deflection effect, which comprises an upper permanent magnet plate, a lower permanent magnet plate, a double-channel collimator and a double-channel probe; the double-channel collimator penetrates into a shell; the double-channel collimator comprises a scanning channel and a reference channel; the scanning channel and the reference channel are connected with different values of voltage; the double-channel collimator is used for enabling ions to enter the shell along the channel direction; the upper permanent magnet plate and the lower permanent magnet plate are fixed at the upper and lower ends of the shell respectively so as to form a uniform magnetic field; the double-channel probe is arranged in the shell and comprises a scanning collection probe and a reference collection probe which are respectively coplanar with the scanning channel and the reference channel; and the scanning collection probe and the reference collection probe are respectively connected with different values of voltage. The scheme can provide an ion current probe with high signal-to-noise ratio.

This utility model discloses a wireless charging system with a magnetic core structure. The magnetic core structure is respectively disposed at the transmitting end and the receiving end. The magnetic core structure includes: a first magnetic core and a second magnetic core connected together; there is a height difference and / or spacing between the first magnetic core and the second magnetic core, such that after the coil is wound around the magnetic core structure, the first magnetic core and the second magnetic core generate magnetic fields in opposite directions; in the working state: the first magnetic core located at the transmitting end is opposite to the second magnetic core located at the receiving end, and the two have different working areas; the second magnetic core located at the transmitting end is opposite to the first magnetic core located at the receiving end, and the two have different working areas. Based on the magnetic core structure and wireless charging system of this application, it can provide high anti-misalignment for wireless charging, reduce the "alignment" requirements of the transmitting end and the receiving end, and improve working efficiency and charging convenience.