6results about How to "Avoid Galvanic Corrosion Problems" patented technology

The invention belongs to the technical field of processing and manufacturing of sandwich composite material pressure-resistant shells, and particularly relates to a sandwich composite material pressure-resistant shell trepanning reinforcing structure and an assembling method thereof. Comprising a built-in reinforcing ring, an inner bushing, an outer bushing, an outer threaded sleeve and a composite material insulating filling layer, the built-in reinforcing ring is nested in the opening of the sandwich composite material pressure-resistant shell; the inner bushing is inserted into the built-in reinforcing ring from the inner side; the outer bushing is inserted into the built-in reinforcing ring from the outer side; the outer threaded sleeve is sequentially inserted into the inner bushing and the outer bushing from outside to inside; according to the invention, the built-in reinforcing ring, the inner bushing, the outer bushing, the outer threaded sleeve and other strength reinforcing structures are arranged at the opening of the sandwich composite material pressure-resistant shell, so that the pre-tightening force of the reinforcing structures on the sandwich composite material can be ensured, and the composite material insulating filling layers are arranged between the metal piece and the upper and lower surface layers of the sandwich structure; and the problem of electrochemical corrosion of the reinforcing structure in a marine environment can be avoided.

The invention discloses an insulating coupler and a generator set, and relates to the technical field of couplings. The first half-coupling shaft sleeve is connected with the first end of the universal joint, and the first half-coupling shaft sleeve is connected with the driving shaft in a sleeving manner; the first insulating sleeve is used for isolating the driving shaft from the first half coupling shaft sleeve; and the second half-coupling shaft sleeve is connected with the second end of the universal joint, and the second half-coupling shaft sleeve is connected with the driven shaft in a sleeving manner. According to the insulating coupler and the generator set, the technical problems that an existing coupler cannot achieve the effects of insulation and large torque transmission at the same time, and it is difficult to solve the problem that a bearing, a gear and the like are likely to be subjected to electrocorrosion are solved, the driving shaft and the driven shaft are isolated through the first insulating sleeve, shaft current insulation blocking is achieved, and the service life is prolonged. And meanwhile, the torque transmission capacity between the driving shaft and the transmission shaft is ensured, and reliable application of a transmission system in the whole life cycle is guaranteed.

The utility model provides a conductive structural member and an electric drive system with the same and a vehicle, the conductive structural member is used for the vehicle, the vehicle comprises a first motor and a second motor, the first motor comprises a first shell and a first motor shaft, the second motor comprises a second shell and a second motor shaft, and the conductive structural member comprises a conductive base, the conductive base is fixed on the first shell and / or the second shell; and the number of the conductive parts is two, and the two conductive parts are electrically connected with the first motor shaft and the second motor shaft correspondingly. According to the conductive structural member, the conductive structure is arranged between the first motor and the second motor, the problem of electrocorrosion of the first motor and the second motor can be solved, the number of the conductive structures can be reduced, and the size of an electric drive system can be reduced.

The utility model relates to glass curtain wall technical field, especially a kind of connecting structure of steel crossbeam and stand column, including crossbeam, stand column and sleeve core subassembly;Mounting hole is opened in stand column, and stand column is connected with crossbeam by sleeve core subassembly, and crossbeam is simultaneously connected with glass slab;Sleeve core subassembly includes sleeve core body, spring pin and isolation pin, spring pin installation groove and isolation pin installation groove are arranged on sleeve core body, spring pin installation groove is used to install spring pin, and isolation pin installation groove is used to install isolation pin, spring pin is matched with mounting hole, and isolation pin protrudes from the outer surface of sleeve core body and is contacted with the inner surface of crossbeam, to isolate the outer surface of sleeve core body with the inner surface of crossbeam.The utility model avoids smearing isolation coating or sleeving isolation sleeve on the outer surface of aluminium alloy sleeve core, improves the convenience of operation, and solves the problem of electrochemical corrosion when steel and aluminium contact, and the isolation mode is more stable and reliable, and has good durability, and can be prefabricated in factory.

The utility model discloses a kind of multifunctional ecological revetment blocks for river regulation, belong to the technical field of hydraulic engineering construction, the block includes block body and wedge, block body four side surface structures are same, are equipped with tenon, mortise and half hole, when arbitrary two side surfaces are spliced, tenon is embedded mortise, vertical wedge hole is formed in its half hole alignment, when construction, first assemble block to form revetment level, then the conical frustum wedge of same material is driven into wedge hole, wedge uses its wedge effect to generate huge radial pressure, adjacent block is locked transversely, while its lower end is deeply into foundation, provide vertical anchoring force, the utility model realizes the " transverse locking, vertical anchoring " of revetment structure, integrality, stability and anti-collapse ability are very strong, and construction is convenient, ecological friendly, with very high popularization value.

This utility model discloses a connecting terminal, comprising: a rear sleeve, an inner sleeve, and a spring. The rear sleeve has a first insertion hole, and the inner sleeve is engaged at the opening of the first insertion hole. The inner sleeve has a second insertion hole communicating with the first insertion hole, and the spring is disposed within the second insertion hole. The end face of the rear sleeve has a conductive layer, and the conductive surface of the inner sleeve is in contact with the conductive layer. The inner sleeve and the conductive layer are made of the same material to ensure normal current conduction between them and to avoid electrochemical corrosion problems caused by different materials of the inner and rear sleeves. Thus, the rear sleeve can be made of a low-cost and lightweight material, such as aluminum, to reduce costs and weight.