13results about How to "Improve machine performance" patented technology

The utility model relates to a machine tool portal frame which is applied to a machining assembly provided with a spindle box and comprises a beam assembly, the beam assembly comprises a first beam and a second beam, the first beam is arranged below the second beam, the upper plane of the first beam is in sliding connection with the lower plane of the machining assembly, and the lower plane of the second beam is in sliding connection with the lower plane of the machining assembly. By optimizing the structure of the whole machine, the stability during high-speed processing is ensured, the performance of the whole machine is improved, and the production cost is reduced.

The invention discloses a virtual reality system, which comprises a visual lens and a positioning lens, and is characterized in that the visual lens sequentially comprises a first element group, a second element group, a third element group and a fourth element group from a first side far away from a screen to a second side close to the screen along a first optical axis, wherein the first side surface or the second side surface of the first lens is a plane; the second element group comprises a second lens with positive focal power; the third element group comprises a third lens with positive focal power; the positioning lens sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from the object side to the image side along a second optical axis; the seventh lens has positive focal power; and the eighth lens has positive focal power.

The utility model discloses a water pump assembly, an indoor unit and heating and ventilation equipment, the water pump assembly comprises a mounting bracket, a water pump and a fixing component, and the water pump comprises a plurality of supporting legs; the fixing component is detachably connected with the mounting bracket, and the fixing component and the mounting bracket are used for clamping and fixing the plurality of supporting legs, so that the fixing component, the mounting bracket and the water pump are relatively fixed. According to the technical scheme, the assembling efficiency of the water pump and the mounting support can be improved.

The utility model discloses a duct type air conditioner and an air conditioner. The duct type air conditioner comprises a shell, a first mounting area, a second mounting area and a third mounting area are sequentially arranged in the shell; the heat exchanger is arranged in the first mounting area; the fan is arranged in the third mounting area, and an air inlet of the fan faces the second mounting area; the acoustic superstructure is located in the second installation area and located on the periphery of the air inlet of the fan, and an air passing channel is formed among the sound absorption face of the acoustic superstructure, the side, facing the second installation area, of the heat exchanger and the air inlet of the fan. When the wind pipe machine runs, indoor air flows to the wind passing channel after being subjected to heat exchange through the heat exchanger and then is blown back into a room through the fan, the acoustic superstructure is located on the periphery of the air inlet of the fan, so that the acoustic superstructure does not affect air inlet of the air inlet of the fan, and in the process that a wind beam passes through the wind passing channel, the wind beam is not affected. The noise in the wind beam can enter the acoustic superstructure from the sound absorption surface of the acoustic superstructure to reduce the noise, so that the ducted air conditioner has the advantages of low noise, large air output and good overall performance.

The utility model discloses a glue pre-melting unit for an edge banding machine process. The glue pre-melting unit comprises a rack assembly, a glue pre-melting unit assembly, a glue pre-melting box body, an inductive switch, an acrylic cover plate, a protective cover, a bolt lock, a fixing plate, a glue amount controller, a material pushing assembly, an air cylinder, a material pushing plate, a glue guiding groove, a Teflon base plate, a glue melting groove, a heating pipe, a glue outlet copper pipe and a glue coating assembly. An inductive switch is fixedly connected to the inner wall of one side of the pre-melting glue box body, an acrylic cover plate is fixedly connected to the outer wall of one side of the pre-melting glue box body, and a pushing assembly is arranged at the bottom end of the pre-melting glue unit assembly; the automatic glue pre-melting device is designed with an automatic glue pre-melting function, can realize automatic adding and pre-melting of colloidal particles, and can feed the pre-melted colloidal particles into the glue coating mechanism by utilizing the material pushing structure, so that continuous automatic production is achieved, the problems of insufficient glue melting, incomplete melting and insufficient glue supply caused by coating while melting are avoided, the production efficiency is improved, and the production cost is reduced. The device has the advantages of saving manpower and improving machine efficiency.

The invention relates to the technical field of new energy. The invention discloses a deep sea current energy water turbine airfoil generation method, device, equipment and medium, and the method comprises the steps: preprocessing an original airfoil data set to obtain a target airfoil data set; based on a preset airfoil leading edge generation rule, obtaining an airfoil leading edge curve according to the target airfoil data set; performing central symmetry setting on the airfoil leading edge curve to obtain an airfoil trailing edge curve; based on a preset curve connection rule, a first connection curve and a second connection curve are generated, the first connection curve and the second connection curve are connected with the airfoil profile leading edge curve and the airfoil profile trailing edge curve respectively, and a target airfoil profile curve is generated. According to the method, the problem of insufficient centrosymmetric airfoils in an existing airfoil database is solved, the generated centrosymmetric airfoils can keep a high lift coefficient under bidirectional incoming flow, and the ocean current turbine based on the generated centrosymmetric airfoils can utilize deep sea ocean current energy in most directions without a yaw device.

The application discloses a kind of intelligent magnetic control low-voltage switch device, including magnetic control primary module and blade type secondary module;The magnetic control primary module includes first bottom shell, first top shell, plastic shell baffle, bottom plate, the first bottom shell, first top shell, plastic shell baffle, bottom plate form entire shell frame;The application can realize automatic opening and closing under the size requirement of original manual plastic shell circuit breaker, directly replace the existing old switch of station area, the opening and closing speed is greatly changed fast, improve mechanical performance, effectively increase the space capacity of secondary control module, realize high intelligence, one, secondary integral modular design, secondary module heat insulation design, secondary control module can be plugged, can realize not power replacement secondary module, improve the operation and maintenance ability of product, the service life of primary and secondary module is same period, greatly improve the service life of device, secondary vulnerable components can be plugged alone, improve the flexibility of device, with higher scientificity, logic.

The present invention belongs to the field of engine technology, and discloses an optimization method for integrated optimization matching of an EGR system and a supercharging system, wherein the optimization method for integrated optimization matching of an EGR system and a supercharging system includes: establishment and verification of a simulation model of a supercharged engine working process; simulation analysis of system characteristics of a Miller cycle supercharged engine; construction of an optimization algorithm for integrated optimization matching of an EGR system and a supercharging system; and parameter optimization of an EGR system and a supercharging system of a Miller cycle engine using a genetic algorithm. The present invention uses a domestic engine as a prototype engine for the research paper, establishes a mathematical model of the working process of each subsystem of a turbocharged gasoline engine, and compares a gasoline engine simulation calculation model established based on GT‑POWER with test data to verify the accuracy of the model, which is helpful to promote the design of a high-efficiency domestic hybrid gasoline engine and improve the overall engine performance, and has important academic value and engineering application value.

The present application proposes a thread-hooking suspended shuttle, which specifically relates to the technical field of sewing machine manufacturing. The thread rack is placed in the inner cavity of the suspended shuttle core, and the suspended shuttle core together with the thread rack is placed in the inner cavity of the shuttle fixing seat. There is a sliding line gap and positioning setting between the suspended shuttle core and the shuttle fixing seat. The shuttle fixing seat is fixed. When the sewing machine is running, the shuttle fixing seat is stationary, and the power input end is connected to the hook needle. The suspended shuttle core of the present application is configured in the inner cavity of the fixed shuttle fixing seat. The power input end drives the hook needle and the suspended shuttle core of the shuttle fixing seat without contact and friction, so that the thread-hooking suspended shuttle of the present application does not need to be operated at high speed like the prior art to realize sewing work, and realizes the static operation of the thread-hooking suspended shuttle of the present application, and does not need to match a complex speed change gear set. The thread-hooking suspended shuttle applied for in the present application has subverted the traditional sewing machine design and manufacturing thinking, and has a high promotion value.

The invention relates to the technical field of production of non-oriented electrical steel, in particular to non-oriented electrical steel with excellent punching performance and a production method, and the non-oriented electrical steel comprises the following chemical components in percentage by weight: less than or equal to 0.002% of C, 0.50%-1.50% of Si, 0.5%-1.5% of Mn, 0.005%-0.015% of Te, 0.001%-0.003% of Ca, 0.005%-0.015% of RE, 0.01%-0.05% of S, less than or equal to 0.002% of N, 0.20%-0.60% of Als and the balance of Fe and inevitable residual elements. Wherein RE comprises Ce and La; the method has the beneficial effects that on the premise that the optimized magnetic performance is maintained, the punching burr height is remarkably reduced, the service life of a die is prolonged, the punching sheet section smoothness and the punching sheet qualification rate are improved, and therefore the overall performance of a motor is optimized.

This invention provides a light-transmitting housing for a lidar and the lidar itself. The light-transmitting housing has a rotationally symmetric structure about the lidar's axis of rotation. The inner surface of the housing is parabolic, and its cross-section along the axis of rotation forms a parabola. The outer surface of the housing, on the cross-section along the axis of rotation, is an even-order aspherical shape corresponding to the parabola. The coordinate system used in the equation of the even-order aspherical shape has its z-axis parallel to the axis of rotation, and the planes containing the x-axis and y-axis of the coordinate system are parallel to the lidar scanning plane. The even-order aspherical shape ensures that a light beam emitted from any height parallel to the x-axis within the xz-cross-section along the axis of rotation is emitted parallel to the x-axis. The defocusing position of the lidar's light source ensures that the absolute value of the difference between the first divergence angle and the second divergence angle is less than a preset threshold. This invention solves the problem of beam deflection and divergence affecting beam transmission characteristics, thus improving the overall performance of the lidar.

The application provides a machine tool support structure design method, device, equipment and medium, and relates to the technical field of data processing, wherein the method comprises the following steps: constructing a finite element model of a machine tool support structure, and defining a design region in the finite element model; determining weight values corresponding to pose change information of a moving part in each operating condition; based on the weight values, a design response index determined according to a design requirement index of the support structure, a target function and a constraint condition, performing optimization design of the design region in the finite element model, and determining a design result of the support structure. By integrating the components and component junctions of the support structure into a unified design region, considering the weights of the machine tool under multiple operating conditions, and performing collaborative topology optimization, the defects of stiffness mismatch between the structures caused by separate design are solved, the stiffness matching between the structures after optimization design is ensured, and the design accuracy and performance of the machine tool support structure are improved.

The present invention discloses a method for preparing and applying a high-performance boron-free prefabricated plate. The method involves a boron-free Ni‑Co‑Ta‑W‑Cr‑Ti‑Al‑Nb‑Mo‑Zr high-temperature alloy boron-free activator, with a liquidus of 1140°C to 1170°C. The present invention also introduces a method for using a boron-free activator, including two methods of direct sintering and prefabricated plate preparation. The boron-free activator is fully mixed with the master alloy powder in the form of a liquid phase and then directly sintered or prepared into a prefabricated plate. The prefabricated plate is placed or bonded to the material to be repaired, and can be melted and welded again below the solid solution temperature of the substrate. There is basically no shrinkage deformation during solidification, the repair area has a uniform structure, and there are no defects such as segregation and holes. The bonding strength reaches more than 90% of the substrate, and the repair effect is excellent.