35results about How to "Act as a rigid support" patented technology

The invention discloses a process method for controlling welding deformation with high precision. The process method is embodied in effective control of form and location tolerance in a welding structure, and comprises a preparation stage, a positioning stage and a welding stage. In the preparation stage, a trunnion block combination and a fan-shaped block are machined and assembled respectively,and a weld groove is machined; in the positioning stage, a position of a trunnion is aligned, and then a marking device is arranged, so that the offset condition of the trunnion is conveniently detected in the welding stage; in the welding stage, welding is conducted in a symmetrical and synchronous mode, deformation conditions are monitored by means of marks and a dial indicator, and welding parameters are adjusted in real time. The process method changes the conventional process, finish machining of the two trunnion parts is firstly completed, then assembling and welding are conducted on thesame, the welding stress is made to be in a relatively low and symmetrical balance state by adopting a high-precision detection control method, a reasonable welding sequence and a flexible control means, and therefore the purposes of controlling connection deformation and guaranteeing the workpiece precision are achieved.

The present invention discloses a process for high precision control of welding deformation, the process is embodied in the effective control of the form and position tolerances in a welding structure, and the process comprises a preparation stage, a positioning stage and a welding stage. The preparation stage comprises: performing the processing and assembling respectively for a trunnion block assembly and a fan-shaped block, and processing weld grooves; the positioning stage comprises: aligning the position of a trunnion in a positioning stage, and arranging a marking device in order to check the deviation of the trunnion in a welding stage; and the welding stage comprises: conducting welding in a symmetric and synchronous manner, monitoring the deformation by use of marks and a dial indicator and adjusting the welding parameters in real time. The present invention changes conventional processes: firstly fine finishing is completed for two trunnion parts, then assembling and weldingare performed; by use of a high-precision detection control method, a reasonable welding sequence and flexible control measures, welding stress is kept relatively low and symmetrical, and thus the purposes of controlling welding deformation and ensuring the workpiece accuracy are achieved.

The invention discloses a method for controlling angular deformation of horizontal flanges, and belongs to the technical field of welding machine shells. The method for controlling angular deformationof the horizontal flanges includes the following steps that two sealing bodies are put between the opposite ends of the two horizontal flanges, and the two sealing bodies and the two horizontal flanges are connected and fixed through two bridging tie bars; the sealing bodies and the horizontal flanges are welded, and the bridging tie bars are removed; end plates on the two sides and an outer shell plate in the middle are spliced on the two horizontal flanges and the two sealing bodies and welded, and a welded shell is obtained; and the welded shell is subjected to stress elimination. By meansof the method for controlling angular deformation of the horizontal flanges, the overall rigidity of the horizontal flanges can be improved, and the risk of deformation generated by the horizontal flanges after stress is eliminated is effectively controlled.

The invention discloses a marine vertical deep well liquid cargo pump which comprises a motor component, a bearing component, a mechanical seal, an exit section, a support pipe, a middle support frame, a shaft, a shaft connecting component, a multistage flow guide housing, an impeller, an inducer, a suction section and the like, wherein a gaseous cold insulation cavity and a buffer cavity are sequentially arranged between the mechanical seal and the exit section from the top down to form two mechanical seal protection barriers; a multipoint sliding bearing support is arranged between a pump rotor and a casing; a middle limiting component is arranged in the middle of the pump; a bottom end limiting component is arranged at the undermost end of the pump; deviation of the whole pump due to swaying is avoided; the support pipe capable of sliding up and down is arranged at a shaft connecting part of a lower shaft; the shaft connecting component is dismounted by using a vacated space; and further, a whole lower shaft component can be taken out for maintenance. According to the pump, the service life of the seal can be prolonged, the swaying of the pump is avoided, the pump is convenient to dismount, as well as operates stably and is safe and reliable and long in service life under the working condition of length being 20m and working temperature being subzero 165 DEG C when liquid is pumped, and the pump is applicable to conveying LNG (Liquefied Natural Gas), LEG (Liquid Ethylene Gas) and LPG (Liquefied Petroleum Gas).

An extensible solid surface antenna reflector made from shape memory materials relates to a extensible antenna reflector, which is to resolve the problem that the prior extensible antenna reflector used in aerospace can not simultaneously meet the requirements of large diameter and working at high frequency. The reflector body thereof (1) is in a shape of paraboloid provided with a round opening in the middle, a first shape memory material ring reinforcing component (2) is fixedly connected with the upper edge of the back surface of the reflector body (1), a second shape memory material ring reinforcing component (3) is fixedly connected with the lower edge of the back surface of the reflector body (1), and a radial reinforcing plates (4) arrayed in a parabolic direction are equipped on the back surface of the reflector body (1) between the first shape memory material ring reinforcing component (2) and the second shape memory material ring reinforcing component (3). The invention is provided with a solid surface, the diameter of the antenna is large, working frequency is high (higher than 40 GHz), surface density of the reflector is low, antenna gain is relatively high, and also structure is simple, system structures and control processes is less, and operation reliability of the system is high.

Some embodiments of the present application provide a fingerprint module and a mobile terminal. The fingerprint module includes a fingerprint recognition chip, a flexible circuit board and a pressure detection unit, wherein the pressure detection unit includes a hard substrate and a pressure detection circuit formed on the hard substrate; the fingerprint recognition chip and the pressure detection unit are respectively arranged on the flexible circuit board. The two opposite surfaces are respectively electrically connected to the flexible circuit board. In the embodiment of the present application, the pressure detection circuit is directly formed on the hard substrate, and the rigid substrate provided with the pressure detection circuit is used to replace the reinforcing steel sheet in the prior art and the flexible circuit board for making the pressure sensor. This design method can not only ensure the realization of the pressure detection function, but also help to reduce the overall thickness of the fingerprint module, and reduce the impact of the fingerprint module on the thickness of the whole machine.

The invention discloses a pipeline steel flexible anti-seismic support which comprises a main U-shaped support body, a supporting pillar, a pipeline sleeve and a steel wire rope. The middle of the bottom wall of the main U-shaped support body is fixedly connected with the supporting pillar. The pipeline sleeve comprises an upper pipe sleeve and a lower pipe sleeve which are arranged in an up-down aligning mode. The steel wire rope is symmetrically erected on the lower pipe sleeve and located at the two sides of connecting blocks. A hinged rod is arranged between a connecting rod and the upper pipe sleeve. One end of the hinged rod is fixedly connected with the connecting rod, and the end, far away from the connecting rod, of the hinged rod is connected with the upper pipe sleeve in a rotating mode. A mounting groove is formed in the lower pipe sleeve and corresponds to the supporting pillar. Radial springs are fixed between the supporting pillar and the side wall of the mounting groove in the radial direction of the pipeline sleeve. Axial springs are fixed between the supporting pillar and the side wall of the mounting groove in the axial direction of the pipeline sleeve. According to the pipeline steel flexible anti-seismic support, the pipeline sleeve can be supported through a rigid supporting piece and a flexible supporting piece at the same time, the supporting effect on the pipeline sleeve by the whole support is better, and the anti-seismic action is made better and more effective.

The invention discloses an anti-brittle fracture welding device, comprising a clamping mechanism for fixing a workpiece to be welded, and a multi-stage combined welding mechanism arranged on the clamping mechanism for welding the workpiece to be welded. The clamping mechanism includes a clamping mechanism. seat, and a welding cavity formed inside the clamping seat, a positioning mechanism for clamping and fixing the workpiece to be welded is provided at both ends of the welding cavity, and the workpiece to be welded loaded at both ends contacts in the middle of the welding cavity to form a welding seam; The stage combination welding mechanism includes a filling fusion welding mechanism, a sub-mother annular welding mechanism and a flexible annular electric welding machine, which are sequentially arranged from the top to the bottom of the welding cavity. A diamond-shaped staggered welding layer is formed, and the filler fusion welding mechanism is used to form a flexible protective layer. The invention increases the welding area, prevents the occurrence of cracks, reduces the pressure when it is under stress, and forms a rhombic cross welding layer that absorbs stress.

The invention discloses manufacturing methods of an inflatable deployable antenna reflecting surface based on shape memory polymer and a reflecting surface film and skin thereof, which relate to the manufacturing methods of an antenna reflecting surface, and a reflecting surface film and the skin thereof, and solve the problem that a traditional deployable solid surface antenna reflecting surfaceis inconvenient to fold. The antenna reflecting surface comprises a reflecting surface body, a first circular airbag, a second circular airbag, radial airbags and the skin, the upper end and the lower edge of a convex paraboloid of the reflecting surface body are respectively and fixedly connected with the first circular airbag and the second circular airbag, the convex paraboloid of the reflecting surface body is uniformly provided with N radial airbags which are lined in the circumferential direction, and the skin is covered on the convex paraboloid of the reflecting surface body; the reflecting surface film is coated on fiber reinforcing material through shape memory polymer material; and the skin coats the shape memory polymer material on flexible material. The antenna reflecting surface can be conveniently folded and unfolded, and is used for space communication.

The invention discloses an anti-seismic device for power cables, which comprises a U-shaped main bracket, a supporting column, a cable cover and a steel wire rope. Pipe sleeve, the lower pipe sleeve is symmetrically set up with steel wire ropes on both sides of the connecting block, and a hinge rod is arranged between the connecting rod and the upper pipe sleeve. Rotational connection, the lower sleeve is provided with a mounting groove corresponding to the supporting column, and a radial spring is fixed between the supporting column and the side wall of the mounting groove along the radial direction of the cable sleeve, and between the supporting column and the side wall of the mounting groove An axial spring is fixed along the axial direction of the cable sleeve. The present invention simultaneously supports the cable sheath via the rigid and flexible support members, so that the overall device has a better supporting effect on the cable sheath, and makes the anti-seismic effect better and more effective.

The invention discloses a high-viscoelasticity crack pouring material for an acidic aggregate asphalt pavement. The high-viscoelasticity crack pouring material is prepared from heavy-duty asphalt, polyhydroxy organic substances, an elasticity regulator, a rigidity regulator and waste rubber powder. The crack pouring material is designed for the acidic aggregate asphalt pavement, and the adhesion of acidic aggregate in the asphalt pavement is improved by adding polyhydroxy organic substances; the polyhydroxy organic substances can also form an elastomer by interaction with the waste rubber powder and the elasticity regulator. The high-viscoelasticity crack pouring material for the acidic aggregate asphalt pavement simultaneously overcomes two major defects of commonly used crack pouring materials at present, and is a pavement crack pouring material with broad application prospects.

The invention discloses a synchronous hoisting type duplex insulator string which is used for power transmission line construction. The synchronous hoisting type duplex insulator string comprises two parallel insulator string bodies with the lower ends connected together through a connecting yoke plate. Each insulator string body comprises a hoisting fitting string and an insulator set which are sequentially connected from top to bottom, and further comprises a hoisting device which is arranged between two traction plates in the hoisting fitting string, wherein the hoisting device comprises a traction groove with the U-shaped section and a cylindrical hoisting rod arranged in the traction groove to be matched with the traction groove, traction holes are correspondingly formed in the middles of a front groove plate and a rear groove plate of the traction groove, the hoisting rod penetrates through the traction plates, and the ends, located outside the traction plates, of the hoisting rod are provided with threads and fixing nuts matched with the threads. The synchronous hoisting type duplex insulator string has the advantages of being novel in design and simple in structure; the two insulator string bodies and the hoisting fitting string of the duplex insulator string can be simultaneously hoisted to preset installation positions, and the two insulator string bodies can be prevented from colliding with each other or being twisted together in the hoisting process.

The invention discloses an auxiliary pressure-dividing cable trench, which includes a trench body, a cover plate and two side plates, a limit cylinder is fixedly arranged in the trench body, a sliding plate is sealed and slid inside the limit cylinder, and the A T-shaped plate is fixedly connected to the sliding plate, and two L-shaped pressure plates are symmetrically installed on the upper surface of the T-shaped plate, and a pressure dividing plate is fixedly supported between the two side plates, and a capsule is placed on the pressure dividing plate. Both of the two L-shaped pressing plates include a horizontal section and a vertical section, the horizontal sections of the two L-shaped pressing plates are located above the capsule, and the vertical sections of each of the L-shaped pressing plates slide through the dividing plate, One of the side panels is also provided with a trigger mechanism. The invention does not affect the ventilation of the cable trench under the condition of no vehicle passing, and when a vehicle passes through the cover plate, the device will automatically rigidly support the middle part of the cover plate to avoid damage to the structure of the cover plate.

The invention discloses a highly viscoelastic joint filling material for acid aggregate asphalt pavement, which is made of heavy traffic asphalt, polyhydroxy organic matter, elasticity regulator, rigidity regulator and waste rubber powder. This kind of joint filling material is designed for acid aggregate asphalt pavement, and the adhesion to acid aggregate in asphalt pavement can be improved by adding polyhydroxy organic matter; polyhydroxy organic matter can also be formed by interacting with waste rubber powder and elasticity regulator elastomer. This high-viscoelastic joint filling material for acid aggregate asphalt pavement simultaneously improves two major defects of commonly used joint filling materials at the same time, and is a road joint filling material with broad application prospects.

The invention discloses a metal ceramic composite material and a preparation method thereof, belonging to the field of composite materials. The metal ceramic composite material is composed of a metal coat and porous ceramic, wherein the porous ceramic is a massive material, and the metal coat is wrapped outside the porous ceramic through a self-propagating combustion or bonding process; preferably, the metal coat is made of steel, when the self-propagating combustion process is adopted, the porous ceramic is B4C / Al2O3 complex-phase ceramic; and when the bonding process is adopted, the porous ceramic is glass fiber reinforced silicon dioxide aerogel. The metal ceramic composite material is relatively high in strength, small in weight, low in cost, easy to prepare and favorable in bending resistance.

The invention discloses a high-damping nuclear power pipeline vibration reduction and isolation support and solves the technical problem that the vibration reduction capacity of a nuclear power pipeline support in the prior art is insufficient and needs to be further improved. The high-damping nuclear power pipeline vibration reduction and isolation support comprises a pipeline support and a vibration reduction support, the vibration reduction support comprises a first metal guide rod, a guide pipe, a lever structure and a damping module, the guide pipe is arranged between a fixed panel and an installation panel, the damping module is further installed between the fixed panel and the installation panel, one end of the first metal guide rod is connected with the pipeline support. The other end of the first metal guide rod is located in the guide pipe and is in sliding connection with the guide pipe, and the lever structure is hinged to the first metal guide rod, the fixed panel and the damping module. The high-damping nuclear power pipeline vibration reduction and isolation support has the advantages of being good in support vibration reduction performance, effectively protecting a nuclear power pipeline and the like.