21results about How to "Reduce the deformation" patented technology

The invention relates to the technical field of martensitic steel, in particular to a 04Cr13Ni5Mo stainless steel plate rolling and temperature control process, which comprises the following steps: heating a pretreated blank to 1190-1210 DEG C at a heating rate of more than 0 DEG C and less than or equal to 5 DEG C / min, and soaking for more than or equal to 2 hours; the rolling reduction rate of the blank is controlled to be 12%-15%, and compared with the reduction rate of the pass before final rolling, the reduction rate is reduced by 20%-25%; stacking slow cooling is larger than or equal to 550 DEG C, and the plate yield is increased by 30% or Through heat treatment processes of normalizing at 1040 DEG C + / -10 DEG C, preserving heat of a plate with the thickness of 85 mm for 4 hours, preserving heat of a plate with the thickness of 115 mm for 5 hours, tempering at 620 DEG C + / -10 DEG C, preserving heat of the plate with the thickness of 85 mm for 6 hours and preserving heat of the plate with the thickness of 115 mm for 8 hours, the yield ratio is stabilized at 0.8-0.85, and the uniformity of mechanical properties is improved by 25%. The stable yield ratio reduces the deformation amplitude of plates and workpieces by more than 40% during later processing, additional repair is not needed, and the production cost is reduced.

The utility model provides a blood pump which comprises a rotor assembly, a stator assembly and a shell, the rotor assembly and the stator assembly are arranged in the shell in a spaced mode in the rotation axis direction of the rotor assembly, the rotor assembly comprises an impeller, a power magnetic ring and a center shaft, and the blood pump further comprises a first magnetic bearing assembly. The first magnetic bearing assembly comprises a first inner magnetic bearing and a first outer magnetic bearing which are matched with each other, the first outer magnetic bearing is arranged on the inner wall of the shell, and the impeller, the first inner magnetic bearing and the power magnetic ring are all fixedly arranged on the center shaft; the rotor assembly can rotate around the axis of the rotor assembly so as to drive fluid to flow into and out of the shell, and in the power-on state, the rotor assembly can be spaced from the stator assembly by a first preset distance in the rotating process. All the components of the rotor assembly are fixed on the central shaft, so that the stability of relative positions of all the components is guaranteed, the overall structural strength of the rotor assembly is improved, the stability of operation of the blood pump is guaranteed, and the service life of the blood pump is prolonged.

The wear-resisting plum coupling comprises a first metal claw disc, a second metal claw disc and an elastic gasket, the first metal claw disc, the second metal claw disc and the elastic gasket can be sequentially connected in an inserted mode, and a plurality of clamping grooves are formed in the outer walls of the opposite sides of the first metal claw disc and the second metal claw disc in the circumferential direction at equal intervals respectively. The clamping grooves are matched with the outer walls of the elastic gaskets, a plurality of blind grooves are formed in the inner walls of the clamping grooves, balls are embedded in inner cavities of the blind grooves in a rolling mode, the outer walls of the balls extend out of the inner cavities of the blind grooves, and the elastic gaskets make contact with the outer walls of the balls. According to the wear-resistant plum coupling, in actual use, static friction among the first metal claw disc, the second metal claw disc and the elastic gasket can be reduced, meanwhile, the basic area can be reduced, aging and wear can be slowed down, meanwhile, the wear-resistant plum coupling can confront force causing deformation, the force of each time of deformation is reduced, the aging speed of the elastic gasket is slowed down, and the service life is prolonged.

The invention relates to the technical field of foundation pit supporting, and discloses a deep foundation pit supporting mechanism which comprises a drilling assembly and a hydraulic impact hammer which are coaxially arranged and further comprises an anchor rod and a supporting truss assembly, the drilling assembly comprises a drilling cylinder, the drilling cylinder is cylindrical, a drilling rod is arranged in the drilling cylinder in a sleeved mode, and the hydraulic impact hammer and the drilling rod are coaxially arranged; the supporting truss assembly comprises a surrounding purlin, an anchor bed is arranged at the end, away from the top end of the surrounding purlin, of the surrounding purlin, a supporting side support is arranged at the top end of the anchor bed, a stay cable assembly is arranged between the two sides of the anchor bed, and the supporting truss assembly further comprises a web member arranged between the surrounding purlin and the stay cable assembly. The anchor rod comprises a guide cone, an auxiliary steel cable is arranged at the top end of the guide cone, a cross brace is arranged at the end, away from the guide cone, of the auxiliary steel cable, and a fastening bolt is arranged at the top end of the cross brace. Therefore, the side supporting plate of the supporting truss assembly can provide supporting for the vertical wall of the foundation pit and can also serve as a force application supporting plate of the anchor rod on the vertical wall of the foundation pit.

This utility model relates to the field of pipe support devices, and more particularly to a high-strength, earthquake-resistant metal pipe support device, comprising a pipe body; earthquake-resistant components are fitted on the exterior of both ends of the pipe body, and a support component is fitted in the middle of the pipe body. This utility model utilizes an arc-shaped limiting frame in the earthquake-resistant component to adjust its height according to the diameter of the pipe body, thereby limiting and fixing the pipe body. Then, the support component is lifted and placed in the middle of the pipe body, and its rotation adjustment provides oblique support to the pipe body. Through the combined use of the rubber vibration-damping pad inside the arc-shaped limiting frame and the support column in the support component, vibration transmission can be reduced. In this way, pipe displacement, swaying, and deformation can be effectively reduced, lowering the probability of pipe rupture and leakage, protecting the substances transported inside the pipe from leakage, and preventing secondary disasters such as fires, explosions, and poisoning caused by leaks.

The application provides a motor assembly suspension structure, a vehicle frame structure and a vehicle, comprising a subframe, the subframe having a front mounting point and a rear mounting point, the front mounting point being connected with a vehicle frame through a single frame bushing, and the rear mounting point being connected with the vehicle frame through a double frame bushing; a motor rear suspension support, an active end being connected with a motor assembly, a passive end being connected with a rear cross beam of the subframe, and a buffer bushing being arranged between the active end and the passive end; a motor front suspension member, being connected with a front cross beam of the subframe; and the motor front suspension member and the motor rear suspension support being used for mounting the motor assembly together. The application can improve the NVH performance of the vehicle.

The application belongs to the technical field of bionic mechanical arm, and discloses a new energy vehicle air suspension package authorization, which comprises a buffer mechanism, the buffer mechanism comprises an upper arm, a sliding groove is formed in the inside of the upper arm, a first spring is fixedly connected to the inner wall of the sliding groove, a sealing ring is fixedly connected to the inside of the sliding groove, and a piston rod is slidably connected to the inside of the sliding groove; the cooperation of the piston rod and the first spring and other structures facilitates the buffering of the rotation of the lower arm, the inclined block slides in the inclined groove and exerts pressure on the piston rod in the process of rotation, the piston rod slides in the sliding groove towards the first spring, the first spring and the gas in the sliding groove are extruded, the rotation of the lower arm is buffered through the elastic force of the first spring and the gas pressure, mechanical energy is converted into gas pressure energy and elastic potential energy of the first spring, temporary energy storage is realized, the energy can be released in the subsequent reverse rotation of the lower arm, and energy loss is reduced.

The new energy automobile electronic vacuum pump structurally comprises a main body, a driving motor and a data connecting line, the bottom of the main body is in bolted connection with the top of the driving motor, and the data connecting line is connected with the side end of the driving motor; a main body comprises a vacuum pressure storage tank, two fixing bolts, an inner groove, a reverse valve, an air inlet structure, a rotor and blades, the bottom of the vacuum pressure storage tank is fixedly connected to the two fixing bolts, the fixing bolts are arranged on the left side and the right side of the vacuum pressure storage tank respectively, the inner groove is located in the vacuum pressure storage tank, and the reverse valve is arranged on the rear side end face of the vacuum pressure storage tank. The buffer pipe is fixedly connected through the fixing ring made of the metal material, and then the end face of the buffer pipe is supported through the steel wire, so that under the condition that the air pipe shakes along with an automobile, the deformation amplitude of the buffer pipe can be reduced through the steel wire, the situation that the air pipe is damaged due to long-term shaking is avoided, and the use stability of the electronic vacuum pump is improved.

The invention relates to the field of printing equipment, and discloses a PVC decorative film printing equipment. In this scheme, a pattern is split into multiple parts, which are respectively arranged on different mold cylinders. In this way, after a rolling shaft embosses the texture on the surface of the corresponding mold cylinder onto a film, a mounting plate drives the rolling shaft to rotate as a whole, and switches to the next rolling shaft. After the rolling shaft rotates and embosses the texture on the surface of the corresponding mold cylinder onto the film, the two embossed textures are seamlessly connected. In this way, the rolling shafts are continuously switched for embossing until all the rolling shafts complete one embossing, so that the textures split on the surfaces of different mold cylinders form a large-scale complete pattern on the film. In this way, the embossing work of a large-scale pattern can be completed with simple equipment, and the equipment has a simple structure and less precision accessories, so that the use cost and later maintenance cost of the equipment are greatly reduced. At the same time, the mold cylinder can be freely replaced, so that the application range of the equipment is wider.

The invention discloses a mining control method based on coal mine excavation and mining filling and retaining coupling, and belongs to the technical field of coal mine mining control. The method comprises the following steps: constructing a physical similar model for simulating geological conditions of a target coal mine, excavating a simulated roadway according to a preset tunneling sequence to form a simulated mining surface, implementing simulated filling operation to form a simulated filling body, and reserving simulated coal pillars between the simulated roadway and the simulated mining surface to form a supporting structure; in the mining and filling process, overlying strata and ground surface subsidence displacement data are collected, a roof subsidence curve is drawn, wave crest and wave trough positions are identified, overlying strata movement differences are analyzed, the ground surface subsidence rate is calculated, and on-site actual mining parameters are guided accordingly; according to the method, the supporting effect can be optimized, the overlying strata movement rule can be accurately mastered, and the mining safety problem caused by insufficient data analysis and unreasonable supporting design in coal mine excavation and mining is solved; scientific guidance is provided for on-site mining parameter adjustment, and coal mining requirements under complex geological conditions are met.

The invention relates to a process method for reducing heat treatment deformation of slender shaft type spring steel parts, which comprises the following steps of: after quenching and before main tempering for determining the final mechanical property of the parts, at least carrying out a pre-straightening process once, and carrying out main straightening and low-temperature tempering after the main tempering; the pre-straightening process comprises the following steps: pre-tempering the part at the temperature lower than the main tempering temperature, and then pre-straightening; wherein the target value of the pre-straightening straightness is greater than the target value of the main straightening straightness. Deformation of slender shaft spring steel parts is effectively reduced, and the straightness requirement is met.

The invention discloses a floating type offshore photovoltaic platform. Comprising a bottom frame; the first floating cylinders are mounted on the bottom frame; the top mounting frame is arranged above the bottom frame, is provided with a flexible cable and is used for mounting a photovoltaic panel; the upper ends of the stand columns are connected with the corners of the top mounting frame respectively, and the lower ends of the stand columns are connected with the corners of the bottom frame respectively; the upper ends of the reinforcing rods are connected with non-corners of the top mounting frame, and the lower ends of the reinforcing rods are connected with non-corners of the bottom frame. The vertical columns are arranged at the corners of the top mounting frame and the bottom frame, meanwhile, the reinforcing rods are additionally arranged to connect the non-corner areas of the top mounting frame and the bottom frame, and a three-dimensional supporting system of the corner vertical columns and the non-corner reinforcing rods is formed. Stress caused by sea wave impact, water flow disturbance and wind load can be dispersed, bending deformation and vibration amplitude of the top mounting frame are reduced, fatigue damage of the frame structure is avoided, and the overall structural strength of the platform is improved.

The electric toothbrush head and the electric toothbrush provided by the embodiment of the application relate to the technical field of electric toothbrushes, and the electric toothbrush head comprises a shell, a mounting cavity and a containing cavity, the containing cavity is communicated with the mounting cavity, a brush head assembly, a support and a bristle head, the support is fixedly installed in the mounting cavity, the support has a matching hole, the bristle head comprises a rotating connection part, a limiting part and a linkage shaft, the rotating connection part is rotatably matched with the matching hole, the limiting part is connected with the rotating connection part, and the linkage shaft is eccentrically arranged with the rotating connection part, a driving assembly, a push rod and an elastic piece, the push rod is movably arranged in the containing cavity, one end of the push rod is rotatably connected with the linkage shaft, the other end of the push rod is used for being matched with a main shaft, the elastic piece is arranged in the mounting cavity, and the elastic piece is used for driving the push rod to move in a direction away from the linkage shaft. The embodiment of the application can simplify the structural design of the brush head assembly, is beneficial to simplifying the assembly process of the electric toothbrush head, and reduces the cost of the electric toothbrush head.

The utility model provides a cylinder head component for expanding a cylinder cover and a compressor. The sides, away from an air suction inlet, of a cylinder cover and a valve plate extend outwards, the cylinder cover crosses the edge of a cylinder base to form an extension portion, the valve plate crosses the edge of the cylinder base to form an extension portion, and an inclined face is arranged on the end face of the side, facing the valve plate, of the cylinder cover and gradually gets close to the cylinder base in the direction from the center of the cylinder cover to the extension portion. Aiming at the problem that an existing cylinder cover is difficult to expand, the width and the volume of the cylinder cover are effectively improved in the mode that the cylinder cover expands towards the opposite side of an air suction inlet, so that a space is provided for increasing the length of a limiting plate and a valve plate, and the air suction efficiency of the cylinder cover is improved. The inclined plane is arranged on the end face of the cylinder cover to extrude the cylinder cover gasket, so that the sealing compression amount of the cylinder cover gasket at the edge position is increased, and the sealing effect is improved.

The invention discloses an industrial sewage treatment device, and relates to the technical field of pollutant treatment. The industrial sewage treatment device comprises a sewage pipe, and dirt outlet devices for outlet filtered dirt are arranged at both ends of the outer side of the sewage pipe. The sewage pipe is also provided with a waste recovery outlet device for outlet usable waste materials through vibration. In the present invention, when the sewage is transmitted to the position of a waste collection filter plate, the industrial sewage treatment device increases the transmission resistance of the sewage when the sewage is transmitted inside the waste collection filter plate through the limiting columns and the capturing obstruction columns with dense gaps, thereby reducing the impact strength and impact speed of the sewage. In combination with the impact plate that can be contracted on the capturing obstruction column and the capturing groove that can be appropriately sealed after contraction, as well as the metal particles with attached liquid, the waste collection filter plate can effectively and stably collect the usable waste materials in the sewage.

This invention belongs to the field of electrical technology, specifically relating to a display module and display device. The display module includes a display area, a non-display area, and a transition area located between the display area and the non-display area. The transition area connects the display area and the non-display area and includes at least one transition structure, comprising: a main connecting bridge connected to both the display area and the non-display area; a tension auxiliary connecting bridge connected to both the display area and the non-display area; and multiple signal lines, at least partially arranged on the main connecting bridge. The extension directions of the main connecting bridge and the tension auxiliary connecting bridge are consistent with the direction from the display area to the non-display area. The display module and display device of this application can ensure the stability of signal transmission.

This utility model relates to the field of footwear and apparel technology, specifically to a cotton fiber environmentally friendly shoe upper, including a shoe upper body woven from environmentally friendly fibers and an opening integrally formed on the shoe upper body at the corresponding position of the heel of the human foot. A high-density woven layer made of environmentally friendly fibers is sewn and fixed on the shoe upper body, extending from the corresponding position of the shoe upper body at the heel of the human foot to the corresponding position of the shoe upper body at the forefoot of the human foot. The high-density woven layer is provided with a plurality of stabilizing blocks.

The invention discloses a selective laser melting grafting printing method for a large-size metal thin-wall frame structure, and belongs to the technical field of laser printing. The selective laser melting grafting printing method comprises the following steps that S1, an auxiliary substrate used for bearing selective laser melting printing is designed; s2, the modified three-dimensional model is input into the selective laser melting equipment and printed; s3, the original substrate and the auxiliary substrate are separated, stress relief heat treatment is conducted on the integrated structure, and the part, except for the bottom face, of the auxiliary substrate in the integrated structure is machined to form the bottom face of the large-size metal thin-wall frame structure; and S4, machining is adopted for carrying out cutting treatment on the supporting structure on the remaining part of the machined integrated structure so as to form the large-size metal thin-wall frame structure, by optimizing the clamping mode and the printing direction, the printing height is reduced as much as possible, and the residual stress and the printing time in the product forming process are reduced.

The utility model discloses a bimetallic composite conductor power cable, which comprises a wire core, an inner heat insulation layer, an insulation layer, a shielding layer, an outer heat insulation layer and a protection layer which are sequentially arranged from inside to outside, the protection layer sequentially comprises a buffer layer, a steel wire reinforcing layer and a sheath from inside to outside, and a conductor of the wire core is a composite metal conductor. The bimetallic composite conductor power cable provided by the utility model can buffer the expansion of the steel wire reinforcing layer and reduce the heat transferred to the inside of the cable.

The application discloses a box, a battery device and a vehicle. The box comprises a bottom plate and a frame. The frame is arranged around the periphery of the bottom plate and defines a containing space. A first beam is arranged in the containing space. The first beam extends in a first direction and is connected to the frame in a second direction to divide the containing space into an electrical area and an energy area. The bottom plate comprises an energy area bottom plate and an electrical area bottom plate. The frame comprises a first frame arranged opposite in the first direction and a second frame arranged opposite in the second direction. The second frame, the electrical area bottom plate and the first beam that participate in defining the electrical area are configured as an integral piece. Thus, the force bearing interface can be expanded, the structural rigidity of the box, especially the bending and torsional rigidity, can be significantly improved, the structural rigidity and the anti-vibration fatigue performance of the box can be improved, the rigidity and the modal main frequency of the battery device can be improved, the deformation amplitude of the box structure in the vibration process can be reduced, the stress level can be reduced, and the fatigue strength can be improved.