18results about How to "Small span" patented technology

The invention relates to the technical field of conductivity detection, in particular to a connector conductive terminal electroplating detection system. Comprising an unwinding device and a winding device; the unwinding device and the winding device are respectively used for unwinding and winding a material belt with a conductive terminal; a detection device is arranged between the unwinding device and the winding device; the detection device comprises a base; an auxiliary motor is arranged at the rear position of the base; an output shaft of the auxiliary motor is fixedly connected with a detection roller forwards; the detection roller is located right above the base, and the axial direction of the detection roller is consistent with the front-back direction of the base; a plurality of detection pieces are uniformly arranged on the outer wall of the detection roller in the circumferential direction; according to the invention, the plurality of detection pieces on the outer wall are driven by the detection roller to be in contact with the conductive terminals on the material belt in the conveying process in sequence, so that the conductivity detection of the conductive terminals of the connector is completed without pause, and the electroplating detection efficiency of the conductive terminals of the connector is improved.

The utility model discloses a stator assembly, a motor and a household electrical appliance, and relates to the technical field of motors, and the stator assembly comprises a stator core, a plurality of insulation frames and insulation sheets. The sinking grooves are formed in the two ends of the stator core along the axis respectively, part of structures, located at the two ends of the stator core, of the insulating frames are installed in the sinking grooves, the two ends of the insulating sheets are connected to the two insulating frames respectively, and the insulating sheets are arranged around the inner sides of the winding grooves. The insulation frame does not occupy the area of the winding groove, the thickness of the insulation sheet is smaller than that of the insulation frame, the area of the winding groove is maximized while electrical insulation is guaranteed, and therefore maximization of motor power is achieved under the condition that the outer contour size of the stator assembly is not changed. And the insulation sheets are connected with the insulation frame to ensure the creepage distance, and meanwhile, the span of the winding in the axial direction is reduced, and the copper consumption of the winding is reduced, so that the copper consumption and the manufacturing cost are reduced, and high energy efficiency and low cost of the motor are realized.

The utility model provides a semi-submersible offshore wind turbine generator floating type foundation of an outer inclined stand column structure, which is of a steel structure and comprises a plurality of steel stand columns and a heaving cabin. The floating type foundation is characterized in that the multiple stand columns comprise the multiple inclined stand columns which are obliquely designed, the multiple inclined stand columns are outwards inclined stand columns and are arranged at the vertex positions of a polygon respectively, the multiple outwards inclined stand columns are designed to be outwards inclined downwards and inwards, and the outwards inclined stand columns are main sources of buoyancy and stability of the floating type foundation. The floating body has low requirements on construction sites, ships and installation machinery, and has excellent floating body stability.

The invention provides a pump body assembly, a fluid machine and heat exchange equipment. The pump body assembly comprises a first air cylinder and a second air cylinder, and a partition plate is arranged between the first air cylinder and the second air cylinder. The volume of the third air cylinder is smaller than that of the first air cylinder and that of the second air cylinder. The first air cylinder and the second air cylinder are located between the first flange and the second flange; the third air cylinder is located between the second flange and the first cover plate; and the second cover plate is located between the second flange and the third air cylinder, and a first exhaust cavity of the second air cylinder is formed between the second cover plate and the second flange. The problem that in the prior art, miniaturization design of an air cylinder in fluid machinery is limited is solved.

The utility model provides a reduction distillation workshop for titanium sponge production. The reduction distillation workshop comprises a workshop plant, a main span of the workshop is of a double-layer structure, an outer wall of the workshop is of an open-type structure, an offset span of the workshop is of a three-layer structure, a vacuum system is installed on the first offset span layer, and an opening is formed in the side wall of the first offset span layer for air inlet. Two rows of reduction distillation equipment are placed in a main span of a workshop, the reduction distillation equipment is installed in a cross-layer mode, and a two-layer plane of the main span of the workshop serves as a production operation plane. The environment temperature in the workshop can be obviously reduced, the workshop lighting condition and the sanitary exhaust condition production environment are improved, the span of the main span of the workshop is obviously shortened, and therefore investment is reduced, vacuum system equipment is convenient to overhaul and replace, the labor workload of workers is reduced, production safety and reliability are improved, and economic benefits are remarkable.

The invention provides a pump body assembly, a fluid machine and heat exchange equipment. The pump body assembly comprises a plurality of first air cylinders, a plurality of second air cylinders and a plurality of second air cylinders, the volume of the second air cylinders is smaller than that of the first air cylinders, and the first air cylinders and the second air cylinders are sequentially arranged in the axial direction; the multiple first air cylinders are located between the first flange and the second flange; the flange cover plate is located on the side, away from the first flange, of the second flange and located between the second flange and the second air cylinder. The pump body assembly is provided with a first lubricating oil way and a second lubricating oil way which are used for at least conducting lubricating heat dissipation on the first air cylinder and the second air cylinder correspondingly. The problem that in the prior art, miniaturization design of an air cylinder in fluid machinery is limited is solved.

The utility model provides a fixing support for a ballast water GRE pipe, and belongs to the technical field of ship manufacturing. Comprising a left clamping plate, a fixing bolt penetrates through the lower end of the left side of the left clamping plate in a threaded mode, and the left clamping plate penetrates through a right clamping plate, a fixing rotating shaft, a limiting block and an upper hoop through the fixing bolt in a threaded mode. The GRE pipe is clamped through the left clamping plate and the right clamping plate, and the problems that when a support of the GRE pipe is replaced, the old support deforms due to long-time use, and old bolts are not detached are solved; the effects that rust removers are sprayed to the positions where supports need to be installed, and meanwhile the surfaces of the supports are polished and cleaned are achieved, an upper hoop is in butt joint with the positions, where the supports need to be installed, of the GRE pipe, and the effect that the upper hoop is fixed to the GRE pipe by rotating a fixing rotating shaft after a left clamping plate is tightly attached to the front end of an old support is achieved; the span between the third rib plate and the fourth rib plate is reduced, and the problem that an existing support is not suitable for being used in the GRE pipeline due to the fact that the strength and rigidity are low is solved.

The utility model discloses an eccentric support device for a large turntable type forming machine, the eccentric support device comprises a first support column, a second support column, a third support column and a fourth support column, the first support column and the second support column are arranged at the hollow part of a large-diameter turntable in a penetrating manner, and the first support column and the second support column are close to the inner ring edge of the large-diameter turntable; the third supporting column and the fourth supporting column are arranged on the outer ring edge of the large-diameter rotating disc, and the minimum span is kept between the supporting column in the large-diameter rotating disc and the supporting column outside the large-diameter rotating disc. Compared with the prior art, the eccentric supporting device for the large rotating disc type forming machine has the advantages that the number of the supporting columns is increased, the four supporting columns are reasonably distributed, the span between the supporting columns is reduced, and the supporting structure is reinforced, so that the safety and the stability of the large rotating disc type forming machine are ensured.

The utility model provides an offshore photovoltaic booster station, which comprises a platform and a plurality of pipe piles, two groups of platform beams are arranged below the platform, the two groups of platform beams are vertically arranged, and each group of platform beams comprises a plurality of platform beams which are sequentially arranged at intervals; a plurality of tubular piles are sequentially arranged on each platform beam; the platform comprises a plurality of split decks; a main transformer, a firewall and secondary equipment are detachably arranged on the platform, construction operation can be achieved through a small floating crane and a crawler crane, limitation of water depth is avoided, and the engineering development requirement is met.

The utility model relates to a kind of double-motor driving device for golf bag car.The double-motor driving device for golf bag car includes drive motor, reduction assembly and shell, the shell includes the main part fixed with drive motor and the extension part located at the both sides of main part, the reduction assembly includes worm gear structure and worm structure in main part, the worm structure is located at drive motor output end, the both ends of worm gear structure are provided with first shaft part and second shaft part respectively, the first shaft part and second shaft part are rotatably fixed with shell by first bearing, the extension part in both sides is rotatably fixed with a linkage shaft by two second bearings respectively, the end of first shaft part extends into extension part and is linked with the inner end of output end by coupling, one second bearing is located at the outer end of extension part, and the other second bearing is adjacent to the coupling.The utility model has the advantages of lower production requirements, easy assembly and higher stability during use.

The present invention provides a low harmonic flat wire stator and motor, including a stator core and a flat wire winding; the inner wall of the stator core is evenly provided with 12m stator slots along the circumferential direction, the stator slots are divided into 2n layers along the radial direction of the core, and the flat wire winding is wound in the stator slots; the flat wire winding includes two sets of three-phase windings, which are 30 degrees electrical angle apart in space, and the flat wire windings are arranged symmetrically in double short distances in the stator slots; each phase winding includes at least one parallel branch, each parallel branch includes a plurality of flat wire coils connected in series, each of the flat wire coils includes a forming end and two welding ends, and the two welding ends are respectively inserted into the 2i and 2i-1 layers of the stator slots, 1≤i≤n. While maintaining a small number of line types, the electrical balance of the motor, the balance of the number of winding layers, the low harmonic content, the high torque density, the small span of the cross-line end and the welding end, the high efficiency, the strong fault tolerance, and the connection scheme of the flat wire winding that is universal for different voltage platforms are achieved.

The utility model discloses a high-efficiency stable permanent magnet synchronous motor wiring board assembly structure, and particularly relates to the technical field of permanent magnet synchronous motors, which comprises a wiring board plastic part, and a central point wiring board I and a central point wiring board II are arranged in the wiring board plastic part. A first U-phase wiring board, a first V-phase wiring board, a first W-phase wiring board, a second U-phase wiring board, a second V-phase wiring board and a second W-phase wiring board are further arranged in the wiring board plastic part. According to the high-efficiency stable permanent magnet synchronous motor wiring board assembly structure provided by the utility model, the design of integral molding of the wiring board plastic part is adopted, the operation of the device is facilitated, and meanwhile, the wiring boards and the wiring board plastic part are subjected to integral injection molding, so that the distance among a plurality of wiring boards is increased during the wiring design of the motor, and the reliability of the device is improved. Interference among parts is avoided, complexity of wire winding and terminal welding in technology is reduced, and production efficiency is improved.

The utility model discloses a double-cantilever film pressing device which comprises an installation column and a wire pressing cantilever, the installation column is vertically installed in a cleaning tank, the wire pressing cantilever is installed on the installation column through a lifting mechanism in an up-and-down sliding mode, the wire pressing cantilever comprises a cantilever, a wire pressing wheel and a comb tooth structure, the middle of the cantilever is installed on the installation column in an up-and-down sliding mode, and the middle of the cantilever is connected with the wire pressing wheel in an up-and-down sliding mode. The wire pressing wheels are arranged at the lower ends of the left side and the right side of the cantilever, tows penetrate through the wire pressing wheels from the two sides of the cantilever to be pressed downwards and tensioned, the comb tooth structure is arranged on the side, entering the wire pressing wheels, of the tows, and the cantilever wire pressing device is installed in the water tank, so that the overall height of the cleaning equipment can be reduced; the equipment does not need to dig a pit for sinking in a plant, the requirement for the plant is low, filament pressing is achieved on the two sides from the middle portion, after a filament bundle is broken, an operator can pull the filament bundle again from the two sides only by lifting a cantilever, the operation span is reduced, and traction is easier.

The invention discloses a magnetic suspension motor stator wire winding and inserting method and a magnetic suspension motor, and the method comprises the steps: S1, a plurality of varnished wires are wound in parallel to form a coil group, the coil group comprises a plurality of coils corresponding to one phase of the motor, and the plurality of coils after winding are independently placed; s2, repeating the step S1 to form another one or more coil groups, and according to the winding direction of the coil groups, enabling the coils in the multiple coil groups to be in one-to-one correspondence and combining wire harnesses so as to form a coil combination of which the winding number is multiple times of the number of the enameled wires; s3, the ratio of the wire storage area to the inner hole area of the stator is calculated, and if the ratio is smaller than 0.3 and the number of parallel winding wires is smaller than or equal to 100, single-time double-layer laminated winding wire embedding is carried out; if the ratio is smaller than 0.3, but the number of the parallel winding wires is larger than 100, the wires are wound and inserted in a double-layer mode for multiple times; and if the ratio is greater than 0.3, multiple times of double-layer lap winding and wire embedding are carried out. According to the invention, the problems of small inner hole of the stator and large number of winding and inserting wires are solved, so that the winding and inserting difficulty of the stator is reduced.

The utility model provides a kind of high-speed permanent magnet motor belongs to motor design technical field, include: motor shell, inside installation stator assembly, stator winding, rotor assembly, motor rotating shaft and bearing, stator assembly, stator assembly is composed of stator core and stator slot, and stator winding is embedded in the groove bottom position of stator slot.The utility model design structure is reasonable and compact, and the structure of long-tooth stator core and stator slot cooperate groove bottom arrangement stator winding releases radial space, so that bearing is embedded installation, shortens bearing span, improves critical speed and mechanical stability;Axial heat dissipation flow passage design realizes directional cooling while optimizing electromagnetic efficiency, solves permanent magnet demagnetization risk;Solid permanent magnet small shaft diameter embedded structure ensures the strength of rotor at the same time, effectively reduces centrifugal load and wind abrasion loss, improves high-speed operation reliability;Make the high power density of motor and ultrahigh speed in compact space obtain synergistic breakthrough.

The utility model discloses a stator assembly, a motor and a vehicle. The stator assembly comprises a stator core and a stator winding. The stator core is provided with N stator slots which are arranged at intervals along the circumferential direction of the stator core, the stator winding is arranged in the stator slots and forms an L-layer structure which is arranged along the radial direction of the stator core, the stator winding comprises K types of hairpin coils, the span of K1 types of hairpin coils is N / 2p + 1, the span of K2 types of hairpin coils is N / 2p-1, K2 is greater than or equal to K1, K1 + K2 is equal to K, and p, M, N, L, K, K1 and K2 are all positive integers. According to the stator assembly provided by the embodiment of the utility model, the stator assembly is provided with a new hairpin coil combination, the span of the hairpin coils is reduced, the size of a stator winding can be reduced, and the copper consumption of the stator assembly can be reduced.

The utility model provides a stator and a motor, the stator comprises a stator core and a stator winding, the stator core is provided with a stator slot, and the stator winding has three phases and is wound in the stator slot; in the stator winding, each phase is provided with n branches, each branch comprises m coils which are concentrically arranged and electrically connected in series, in each branch, the spans of all the coils are gradually increased, and the number of turns of all the coils is a, b,... z; a, b,..., and z satisfy a * (m + 1) < a + b +... + z < (a + 1) * (m + 1), a, b,..., and z are positive integers, m is a positive odd number greater than or equal to 3, and n is a positive integer greater than or equal to 1. By means of the arrangement, the problems that in the prior art, the winding span of a stator winding mode is too large, voltage cannot be adjusted in a small-amplitude mode in the design stage, and meanwhile electromagnetic wave forms closer to sine cannot be generated are solved.

The invention relates to the technical field of composite material forming, in particular to a composite material refrigerated container floor assembly and a forming method and system thereof.The floor assembly comprises a bearing plate, a first reinforcing rib and a second reinforcing rib, and the first reinforcing rib and the second reinforcing rib are arranged on the same side of the bearing plate and extend in the length direction; the multiple first reinforcing ribs are arranged in the width direction of the bearing plate, the first reinforcing ribs and the bearing plate are integrally formed through the pultrusion technology, and at least one second reinforcing rib is arranged between every two adjacent first reinforcing ribs; the multiple bearing plates are arranged side by side in the width direction, and the second reinforcing ribs adhere to the adjacent bearing plates in a bridging mode through adhesives. The bearing plate is a flat plate, the first reinforcing rib is a T-shaped beam, and the second reinforcing rib is an I-shaped beam; the bearing plates and the T-shaped beams comprise outer layers and middle filling layers, the outer layers are four-axial-direction warp knitting fabrics covered with surfacing felts, and the middle filling layers are UD yarns arranged in the length direction. During forming, an on-line hot-pressing device is matched in the traction process to conduct hot-pressing fitting on the outline of the T-shaped beam, and residual stress is released for shaping.