191 results about "Lateral extrusion" patented technology

The utility model provides a numerical control lathe for valve production, and relates to the technical field of valve machining equipment. A controller is mounted on the front side of the top of the lathe main body; a clamping head is fixed at the right end of the main shaft in the lathe main body; three guide grooves are annularly formed in the right side of the clamping head; a clamping rod is mounted in each of the three guide grooves in a sliding manner; a rotating shaft is rotationally mounted in the clamping head; an adjusting frame is welded on the outer side of the rotating shaft; a fastening rod is further rotationally mounted at the top of the clamping head; and a helical gear is arranged at the bottom end of the fastening rod. When the numerical control lathe is used for machining the control valve, generated side face extrusion force cannot enable the clamping rod to be loosened, and the stability after clamping is improved.

The invention relates to the technical field of welding, and particularly discloses automatic assembly welding equipment for a main frame of a semi-trailer, which is used for performing assembly welding processing on a main longitudinal beam and an auxiliary longitudinal beam in the main frame and comprises a placing frame, a transverse moving unit, a longitudinal moving unit, a pressing unit, a welding unit and a guiding unit, the transverse moving unit drives the auxiliary longitudinal beam to transversely move, and it is ensured that the auxiliary longitudinal beam is accurately attached to the main longitudinal beam; a top pressing roller of the pressing unit applies vertical downward pressure to the auxiliary longitudinal beam, a side pressing roller applies lateral extrusion force, buckling deformation of the auxiliary longitudinal beam in the welding process is effectively restrained through the dual effects, the assembly straightness and relative position precision of the main longitudinal beam and the auxiliary longitudinal beam are guaranteed, and dislocation is avoided; the guide unit guides the welding gun head in real time based on the extending path of the V-shaped groove of the auxiliary longitudinal beam, it is ensured that the welding gun head always moves along a preset track in the welding process, and deviation is prevented. And the longitudinal moving unit is combined to drive the welding gun to feed at a constant speed, so that the centering degree and continuity of a V-shaped groove welding seam are effectively improved, and the welding quality consistency is guaranteed.

The invention relates to the technical field of cast-aluminum rotors, in particular to a multi-cavity cast-aluminum rotor die-casting die and a motor rotor, the multi-cavity cast-aluminum rotor die-casting die comprises an upper die, a middle die and a lower die, and the middle die is provided with a plurality of main cavities; an upper end ring groove corresponding to the main cavity is formed in the upper die, and a dummy shaft hole is formed in the center of the upper end ring groove; a lower end ring groove corresponding to the main cavity is formed in the lower die, and a positioning groove is formed in the center of the lower end ring groove; the rotor iron core is placed in the main cavity, and the main cavity is a cylindrical hole and is in clearance fit with the rotor iron core; the dummy shaft assembly is placed in the dummy shaft hole, through transverse extrusion of the dummy shaft assembly, the quality of the shaft hole of the cast-aluminum rotor is improved, molten aluminum is prevented from being extruded into gaps between rotor iron core punching sheets, transverse current is reduced, and additional loss of the motor is reduced.

The utility model provides a flexible body transfer mechanical clamping jaw which is used for clamping makeup cotton sets and comprises a mechanical jaw body, a supporting component and two cotton clamping plates. The cotton clamping plates are driven through the mechanical claw body, and the two sides and the two ends of the cotton pad set are attached, protected and clamped through the supporting component and the two cotton clamping plates. The mechanical claw main body comprises a driving part, two clamping connecting rods and a fixed connecting rod; wherein the supporting component comprises a supporting column and an anti-collapse frame, the clamping connecting rod is connected with the first air cylinder, and the vertical column is connected with the second air cylinder, so that the supporting component and the clamping connecting rod are driven at the same time, and the function that the two sides of the cotton pad set are protected to avoid side collapse while the two ends of the cotton pad set are clamped is achieved; and finally, through the arrangement of the supporting component, the supporting component can make contact with and be tightly attached to the side face of the makeup cotton set for blocking in the clamping process, lateral extrusion protection force is provided for the makeup cotton set, and the risks of collapse, side collapse and the like generated in the transferring process of the makeup cotton set are reduced.

The invention discloses a pile forming form and inter-pile soil compactness evaluation method based on vibro-replacement gravel pile construction data. The method comprises the steps of finding a pseudo-residual vibration working section according to a real-time construction depth-time curve, determining a key stage according to a real-time construction filling amount-time curve, finally finding a time node of downward insertion / upward pulling of a gravel pile by a vibroflot according to an amplitude change rule of a real-time construction current-time curve, calculating a transverse extrusion and expansion range after reinforcement, and finally determining a reinforcement result. And the pile forming form is estimated, and the average compactness of the soil between the piles of the reinforced field is calculated. According to the method, evaluation of the pile forming form and the compactness of the soil between the piles is achieved through on-site construction data, and the method has the advantages of being high in evaluation speed, high in accuracy and the like and is suitable for reinforcing effect evaluation of the vibro-replacement gravel pile treatment foundation with the down-inserting and up-pulling construction technology.

The invention is suitable for the field of casing sidetrack drilling operation, and provides an elastic piece prizing type side pushing mechanism for a cement sheath knapper, the elastic piece prizing type side pushing mechanism comprises a first fixing rod, a second fixing rod, an inserting rod, an elastic piece and a movable roller shell, the elastic piece is bent to jack the movable roller shell to do lateral movement, extrusion force is applied to a casing to induce cracking of a cement sheath, and the elastic piece prizing type side pushing mechanism is suitable for the cement sheath knapper. An elastic piece prizing type lateral pushing structure is adopted, an independent driving cavity, a sealing assembly and a guiding structure do not need to be arranged, the structure of the mechanism is greatly simplified, the overall outer diameter size is reduced, miniaturization and compactness of the mechanism are achieved, the mechanism meets the tripping-in requirements of small well diameters, thin-wall sleeves and complex well conditions, meanwhile, lateral extrusion is achieved through elastic deformation of an elastic piece, and the service life of the mechanism is prolonged. Stable extrusion force is guaranteed, and the defects that an existing piston driving structure is complex and large in size are overcome.

The invention discloses a high-supporting-performance raft foundation side die structure and a construction method thereof, and relates to the technical field of raft side supporting structures.According to the high-supporting-performance raft foundation side die structure and the construction method thereof, the width of multiple layers of brick forming dies is reduced layer by layer from bottom to top, so that the top of each layer of brick forming die is exposed, and side face extrusion force borne by the side die structure is dispersed to the tops of the brick forming dies; through cooperation of connection of constructional columns and upper, middle and lower layers of ring beams and connection of pre-buried steel plates to raft foundation steel bars, a cantilever stress system of the side formwork structure can be optimized, the bearing capacity of the side formwork structure can be improved, the probability of collapse of the side formwork structure is reduced, meanwhile, the thickness of the multiple layers of brick moulding beds is increased layer by layer from bottom to top, and the construction cost is reduced. The overall width of the side formwork structure is reduced, the using amount of bricks can be reduced, the digging amount and the backfilling amount of a pit-in-pit can be reduced, under mutual cooperation, the construction cost is reduced to a certain degree, and the construction efficiency is improved.

The invention relates to the field of power module clamping, and discloses an inclined wedge clamping module wire binding jig which comprises a synchronous pressing mechanism located in a fixed beam frame and matched with an embedded material clamping groove structure and an air cylinder structure of an operation platform to be used for synchronously pressing a product to be subjected to wire binding. The pressing detection mechanism is located in the fixed beam frame, matched with the inclined wedge pressing block and used for making contact with the product and generating the pressing state of the product, and the stable heat dissipation mechanism is located in the suspension top frame and used for dissipating heat generated by the electronic element. The combined design of the one-way / two-way inclined wedge pressing assemblies is adopted, the one-way pressing assembly is used for fixing a module on one side, the two-way assembly is used for synchronously pressing adjacent modules, module displacement or deformation caused by uneven stress of a traditional clamp is avoided, after the module is embedded into a clamping groove structure, inclined wedge blocks are transversely extruded to fix the module to a limiting face, and the clamping groove structure is fixed to the limiting face. The method is especially suitable for high-precision wire binding processes (such as chip packaging and sensor assembling), and ensures the consistency of wire binding positions.

The utility model discloses a cooling fin spring inclined block pressing flying surface device contacted with a chip. The cooling fin spring inclined block pressing flying surface device comprises a cooling fin, a chip body is arranged on the cooling fin, a cooling piece is installed on the cooling fin, and a limiting assembly is arranged on the surface of the cooling fin; the limiting assembly comprises an interchange plate installed on the surface of the cooling fin, a chip groove is formed in the interchange plate, the interchange plate is clamped on the surface of the cooling fin through a pressing plate, a clamping positioning column is fixed to the interchange plate and clamped in a limiting groove, the limiting groove is formed in the surface of the pressing plate, and the chip groove is clamped in the clamping positioning column. And limiting operation is carried out on the cooling fins through the limiting assembly. According to the cooling fin spring inclined block pressing flying surface device in contact with the chip, the chip body is subjected to heat dissipation operation through the heat dissipation piece on the cooling fin, the cooling fin is limited through the pressing plate of the limiting assembly, the problem that the chip body is prone to deformation due to the fact that the pressing mode is upward pressing or lateral extrusion is solved, and the overall machining quality is improved.

The invention relates to the technical field of powder metallurgy manufacturing, and particularly discloses powder metallurgy manufacturing equipment for a plunger pump cylinder body. According to the powder metallurgy manufacturing equipment, the purpose of multi-direction extrusion forming is achieved, before powder metallurgy is conducted, raw materials are put in through the material guiding device, the material guiding device stirs the raw materials and guides the raw materials to be poured into a cavity formed in advance of the transverse extrusion device, and the raw materials are extruded through the transverse extrusion device; compared with a traditional powder metallurgy one-way extrusion machining process, a workpiece is extruded in all directions, so that the strength of the workpiece is improved, heating is conducted after forming is completed, and therefore the strength of a cavity is enhanced before formal temperature rising; the plunger pipe and the liquid inlet and outlet pipe can be directly molded in the extrusion forming process of the cavity, so that the overall sealing performance of the cavity is enhanced.

The utility model belongs to the technical field of grain and oil grease extraction equipment, in particular to a grain and oil grease extraction device, which is characterized in that a feed hopper is positioned at the upper end of a crushing cylinder and is connected with the crushing cylinder through a first feed pipeline, and the crushing cylinder is positioned at the upper end of an extrusion box and is connected with the extrusion box through a second feed pipeline; two groups of crushing cutters are rotationally connected in the crushing cylinder and are driven by a first power device; two groups of transverse extrusion plates are connected into the extrusion box in a sliding manner and are driven by a second power device; mounting holes are formed in the extrusion box, two groups of longitudinal extrusion plates matched with the mounting holes are connected to the inner side wall of the extrusion box in a sliding manner, and the two groups of longitudinal extrusion plates are driven by a third power device. And the bottom of the extrusion box is detachably connected with an oil filtering plate corresponding to the transverse extrusion plate and the longitudinal extrusion plate.

The invention discloses a connecting structure of a stand column and a table leg of a lifting table. The connecting structure comprises at least one locking column arranged at the bottom end of the stand column and a single-side locking device arranged in the table leg and used for transversely clamping and vertically extruding the locking column so as to fix the stand column and the table leg. The single-side locking device comprises a locking plate sliding in the length direction of the table leg, at least one long through hole is formed in the locking plate, and each long through hole comprises a space allowing the large end of the locking column to penetrate through, a small hole communicated with the space and allowing the clamping column in the annular groove of the locking column to be clamped so that the stand column and the table leg can be fixed, and a spring pressing the locking plate. The single-side locking device further comprises an inclined face which is arranged on the bottom face of the locking plate and used for vertically pressing the locking column. The one-way locking device further comprises a vertical elastic pressing assembly which locks the locking plate in a locking state or pokes the locking plate to an unlocking state and positions the locking plate. The connecting structure has transverse extrusion force and vertical extrusion force, so that connection is firm and stable, only one-side locking is achieved, the structure is relatively simple, and clamping is relatively convenient.

This invention relates to a dual-power single-shaft straight-line five-link press. The press includes a machine body, a main shaft, a slide block, a worktable, a power unit, a clutch and brake unit, a slide block guide rail, and five sets of connecting rods. The power unit includes two sets of power output motors respectively located on the left and right sides of the machine body. Each power output motor is connected to a flywheel via a pulley and a belt. The flywheel is connected to the clutch and brake unit, which is connected to the main shaft. Five sets of eccentric connecting rods (7a, 7b, 7c, 7d, 7e) are arranged in a straight line along the axial direction on the main shaft. The five sets of connecting rods are connected to the slide block. The two sets of power output motors, the flywheel, and the clutch and brake unit are symmetrically arranged with respect to the machine body. Connecting rod (7c) is located at the center of the main shaft's axial direction, and the other connecting rods (7a, 7b, 7d, 7e) are symmetrically arranged with respect to connecting rod (7c). The symmetrically arranged linkage structure and dual-sided synchronous drive method of this invention enable the slider to be lightweight while maintaining high rigidity, reducing deformation and lateral extrusion force, and improving motion synchronization and stamping accuracy.

The utility model discloses a steel wire cut-off device for waste vehicle tire recovery, which relates to the technical field of tire recovery and comprises a lower machine base, a horizontal conveying belt, a cut-off mechanism and a steel wire transverse extrusion mechanism. The steel wire transverse extrusion mechanism comprises a side face limiting clamping plate arranged through a first hydraulic cylinder, and the side face limiting clamping plate is perpendicular to the horizontal conveying belt in the lower machine base. And the steel wire longitudinal extrusion mechanism comprises a longitudinal extrusion plate arranged through a second hydraulic cylinder. According to the utility model, the steel wire transverse extrusion mechanism is used for transversely extruding the tire waste steel wires, and meanwhile, the steel wire longitudinal extrusion mechanism is used for longitudinally extruding the tire waste steel wires, so that larger waste steel wire bundles can be extruded into smaller rectangular strips through successive action in the two directions; and subsequent cutting-off treatment through the cutting-off mechanism is facilitated.

The invention discloses a multifunctional welding device for valve machining, and relates to the technical field of valve welding machining, the multifunctional welding device comprises a tool table, the top of the tool table is horizontally provided with a reference positioning table, and the reference positioning table is in butt joint with a flange hole in the bottom of an oblique insertion type gate valve through a positioning pin. According to the welding device for machining the multifunctional valve, the aligning and shaping mechanism for transverse centering and vertical limiting is arranged, so that a valve body and a valve plate which are spliced by an oblique insertion type gate valve are centered and tightly supported from inside to outside and are tightly buckled from top to bottom in a multi-point manner; then the pressing rod adjusted along with the clamping rod is used for driving the spherical positioning block to position the valve bodies on the upper side of the valve plate in the butt joint angle, meanwhile, the anti-loosening mechanism is used for conducting lateral extrusion on the valve plate, edge warping of the inclined valve plate on the inclined opening sides of the two valve bodies can be prevented, the anti-loosening mechanism can further avoid the valve bodies of the inclined inserting type gate valve, and the anti-loosening effect is good. And the problems that the splicing gap of the valve is easy to loosen, deviate and warp edges are solved under the condition of ensuring that the valve is welded without hindrance.

The invention relates to a clastic rock reservoir porosity evolution recovery method under a tectonic extrusion background, and belongs to the technical field of petroleum and natural gas exploration and development. The method comprises the following steps: calculating the total compaction pore reduction amount of clastic rock samples, selecting samples with similar burial depths, similar rock structures and different maximum paleotectonic stresses as selected samples, and calculating the total compaction pore reduction amount of the clastic rock samples according to the difference value of the total compaction pore reduction amount corresponding to two selected samples with adjacent maximum paleotectonic stresses. Obtaining the lateral compaction pore reduction amount of the maximum palaeotectonic stress, and establishing a function relationship between the lateral compaction pore reduction amount and the maximum palaeotectonic stress; the lateral compaction hole reduction amount of each time of lateral extrusion in the multiple lateral extrusion processes is calculated; according to the total compaction hole reduction amount and the lateral compaction hole reduction amount, the vertical compaction hole reduction amount is calculated, and a relation chart of the vertical compaction hole reduction amount and the buried depth is established; and drawing a geological historical period porosity evolution curve of the clastic rock reservoir under the tectonic extrusion background by utilizing an inversion back-stripping method and combining the lateral compaction pore reduction amount and the vertical compaction pore reduction amount. The method solves the problem that the lateral and vertical compaction hole reduction amount cannot be quantitatively calculated in the evolution recovery process of the porosity of the foreland basin reservoir.

The invention discloses an anti-deformation type circulating stirring mechanism and a high-fluidity coal bunker provided with the same, and belongs to the technical field of coal mining auxiliary equipment.The mechanism comprises a stirring shaft and a stirring motor which are transversely arranged, a plurality of main stirring blades extending in the radial direction of the stirring shaft are installed on the stirring shaft, and auxiliary stirring blades are connected to the ends of the main stirring blades; a plurality of protective steel wires completely surrounding the auxiliary stirring blade are wound in the length direction of the auxiliary stirring blade, the head ends and the tail ends of all the protective steel wires are fastened by fastening assemblies installed on the side wall of the main stirring blade, and all the fastened protective steel wires are in a tensioned state. The protective steel wires wrap the auxiliary stirring blades through tensile force to form an external rigid protective layer, impact force generated when coal falls and transverse extrusion force generated when the coal is stacked can be effectively dispersed, meanwhile, the steel wires limit deformation of the auxiliary stirring blades, and the deformation risk of the auxiliary stirring blades is remarkably reduced; and the diameter of the protective steel wire is very small, so that the problem that the stirring resistance is greatly increased due to the reinforcing ribs is avoided.

The application discloses a connecting structure of a stand column and a table leg of a lifting table, which comprises a protrusion fixed on the bottom end of the stand column or the table leg, and a cam pressing assembly fixed on the table leg or the bottom end of the stand column and transversely and vertically extruding the protrusion; the two connecting surfaces of the end and the middle of the protrusion are both inclined surfaces with thick inside and thin outside; the mounting base of the cam pressing assembly is provided with a sliding rod, two pressing strips are slidingly matched on the sliding rod, the mounting base is provided with cavities for the sliding of the respective pressing strips, one side of the mounting base is hingedly provided with a cam for pressing the pressing strips to transversely and vertically extrude the protrusion inserted between the two pressing strips and fix the stand column and the table leg, the matching surfaces of the respective pressing strips and the inclined surfaces of the protrusion are all inclined surfaces with thin inside and thick outside, and a lever type handle is connected to the cam for extruding the pressing strips or releasing the extrusion of the pressing strips.

The utility model discloses a double-layer automatic rope returning and guiding device, and relates to the technical field of rope guiding devices. The rope guiding device comprises a rope guiding ring and an arc-shaped pressing plate mechanism, the rope guiding ring is not connected end to end, the arc-shaped pressing plate mechanism is connected to the head section of the rope guiding ring and comprises a first arc-shaped plate, a long slotted hole is formed in the first arc-shaped plate, rotating grooves are formed in the opposite positions of the two sides of the long slotted hole, limiting plates are rotationally connected in the rotating grooves, and the first arc-shaped plate and the second arc-shaped plate are connected through the limiting plates. According to the utility model, through the arrangement of the arc-shaped pressing plate mechanism, when the electric hoist is obliquely hoisted, the steel wire rope can generate lateral extrusion force on the limiting plate, and the force can firstly act on the limiting plate, so that the limiting plate overcomes the elastic force of the spring to rotate; and the cross rod is pressed through the supporting rod, so that the cross rod is pushed to move to trigger the fire cutoff limiter during continuous movement, and a power supply of the electric hoist can be quickly cut off under the condition of inclined hoisting, so that the electric hoist stops moving.

The invention relates to the field of water source booster pump station foundation pit supporting, in particular to a water source booster pump station foundation pit supporting structure which comprises four corner piles distributed at the four corners in a foundation pit, a plurality of steel pipe piles are jointly arranged among the four corner piles, and the steel pipe piles and the four corner piles define a rectangular structure to support the foundation pit. Inclined supporting pieces are arranged on the sides, close to one another, of the four corner piles. When the corner piles and the steel pipe piles are driven to support the foundation pit, through anchoring of the anchor rods on the inclined supporting pieces and multi-reinforcement design of the first stabilizing mechanism and the second stabilizing mechanism, an integral supporting structure of the steel pipe piles and the corner piles is formed, the stability of a foundation pit supporting system is improved, and the steel pipe piles are driven in a staggered and symmetrical piling sequence, so that the foundation pit supporting efficiency is improved. The defect that in a traditional technology, due to single-side concentrated piling, a soil body generates too large lateral extrusion is effectively overcome, the risk that the steel pipe piles subjected to pile sinking deviate is reduced, and the overall stability of a supporting structure is further guaranteed.

The utility model discloses a domestic sewage purification tank which comprises a tank body used for purifying domestic sewage, shallow sunken parts which are sunken inwards at intervals are respectively arranged on the outer wall of the periphery of the tank body, and a plurality of outer side vertical convex edges and inner side vertical convex edges which are alternately distributed at intervals are formed on the inner side wall and the outer side wall of the tank body. Each outer side vertical rib is in a trapezoid shape which is gradually reduced from top to bottom, and each inner side vertical rib is in a trapezoid shape which is gradually increased from top to bottom. According to the utility model, the strength of the peripheral side walls of the tank body is increased, the anti-extrusion capability can be effectively improved, deformation or fracture caused by lateral extrusion of peripheral soil can be avoided, and the use safety is ensured.

The utility model provides a kind of packing structure for air conditioner wall-hanging machine, including packing main body with containing cavity, it is set three avoidance structure in containing cavity, is pipe slot avoidance groove, air guide avoidance groove and panel body avoidance groove respectively.Pipe slot avoidance groove is set to the pipe slot of air conditioner wall-hanging machine, can effectively buffer edge drop impact, prevent pipe slot root cracking;Air guide avoidance groove and air baffle contour adaptation, avoid extrusion leading to air baffle drop;Panel body avoidance groove provides support space for lower panel body, prevent deformation caused by long-term lateral extrusion.The packing main body is made of foam and other cushioning materials, the air conditioner wall-hanging machine is coated at both ends, and the bottom is also provided with a convenient operation of the handle slot and weight reduction perforation.The structure significantly improves the protection performance in transportation and warehousing process, which can effectively avoid the damage of air conditioner components.

The utility model provides a front fork yoke plate of a tricycle. The front fork yoke plate comprises a yoke plate body, a steering mounting opening formed in the top end of the yoke plate body, a damping mounting opening formed in the yoke plate body in a penetrating mode, an anti-rust assembly arranged at the top end of the yoke plate body, and a reinforcing assembly arranged at the bottom end of the damping mounting opening and located at the bottom end of the yoke plate body. Through the arranged reinforcing assembly, the fixing ring is rotated to be gradually close to the yoke plate body on the fixing inclined sheet, and the end, close to the yoke plate body, of the fixing inclined sheet is gradually thickened, so that in the rotating process of the fixing ring, the elastic fixing sheet continuously gets close to and presses the internal damping bottom cylinder till the damping bottom cylinder is installed and fixed and does not loosen; the spring can exert transverse extrusion force on the fixing ring, so that the fixing ring is not prone to loosening, oxidation of the zinc sheet can be accelerated under a microelectrode formed by the zinc sheet, electrolyte in the connecting bridge and the copper sheet, weak current passes through the yoke plate body, rust can be reduced into metal iron, rust of the yoke plate is slowed down, and the service life of the yoke plate is prolonged.

The present invention relates to the technical field of high-voltage power equipment accessories, and in particular to a modular transmission and adjustment mechanism for a high-voltage disconnector, comprising a bottom assembly frame, a drive motor, a first insulating component mounted on the bottom assembly frame, a second insulating component, and a third insulating component. The modular transmission and adjustment mechanism for a high-voltage disconnector of the present invention adopts a modular structural design and can be independently disassembled and replaced as needed, greatly reducing the difficulty and cost of early assembly and later disassembly. By using threaded rods with different thread densities to drive the internally threaded drive tube, the speed of the second guide tube and the lateral extrusion arm can be adjusted at different positions, thereby ensuring that the speed of the control end is consistent while improving the operating speed during connection and disconnection, and achieving higher operational stability, better safety, and better durability.

The utility model provides a sedimentation device, which relates to the technical field of sewage treatment and comprises a sedimentation tank, a silt discharging assembly, a transverse extrusion assembly, a longitudinal extrusion assembly, a transverse driving assembly and a longitudinal driving assembly. The transverse extrusion assembly transversely pushes waste water in the sedimentation tank to the silt discharging assembly and filters and extrudes impurity particles in the waste water, the longitudinal driving assembly drives the longitudinal extrusion assembly to move downwards, and the longitudinal extrusion assembly downwards pushes the waste water in the sedimentation tank to the silt discharging assembly and filters and extrudes the impurity particles in the waste water; impurities in the wastewater are close to the silt discharging assembly and are quickly gathered and precipitated, and finally the wastewater is discharged through the silt discharging assembly, so that the precipitation efficiency of impurity particles in the wastewater is effectively improved, the normal operation of a production process is ensured, and the production efficiency is improved.

A cutting and crushing system for PC film production includes a cutting device and an edge material crushing device located below the discharge end of the cutting device. The cutting device includes a conveyor table and a pair of cutting components installed above the conveyor table. The cutting components include a movable seat, a blade holder fixing seat, a blade holder, and a blade holder adjusting motor. The advantages of this invention are: during the cutting process, the blade holder can move up and down intermittently with the blade, avoiding prolonged work on the same part of the blade and extending the blade's service life; the blade holder fixing seat can be flipped, allowing blade replacement without stopping the machine; after the edge material enters the crushing box, it first passes through the transverse extrusion feeding roller to create multiple vertical indentations, and then enters the longitudinal extrusion feeding roller to create multiple transverse indentations, forming crisscrossing indentations. When passing through the crushing roller, the crushing rod can easily break up the edge material from each indentation, resulting in uniform particle size of the crushed material.

The utility model relates to the field of corrugated paper, and discloses high-strength double-corrugated-paper-core corrugated paper which comprises two side plates and a middle plate located between the two side plates, a plurality of sets of middle supporting assemblies are arranged between the middle plate and the side plates, and the middle supporting assemblies, the middle plate and the side plates are the same in length. The middle supporting assembly is composed of two mirrored C-shaped supporting plates, and when the middle supporting assembly is pressed, pressure can be dispersed through ingenious deformation of the middle supporting assembly. When the side plates bear pressure, deformation of the C-shaped supporting plates enables the end protrusions in the same rectangular recess or the middle plate groove to slide and be attached to each other, then transverse extrusion force is generated, part of vertical pressure is effectively counteracted, the compressive strength of the whole structure is greatly improved, and compared with common double-corrugated paper, the double-corrugated paper has the advantages of being simple in structure and convenient to use. Stacking pressure of goods with multiple weight can be borne, and sinking and damage are avoided.

The utility model discloses a four -way inspection well, including the main pipe and two cross and with the branch of main pipe intercommunication, and the branch both ends all have the pipe mouth, and each branch is crossed and is divided into two pipe sections, and the first reinforcing rib of the pipe mouth transverse deformation can be hindered is established between the adjacent pipe section of intersection, and the second reinforcing rib of the pipe mouth external expansion can be hindered is established in the root joint of adjacent pipe section of intersection. The utility model can control the longitudinal tensile and transverse extrusion of the branch mouth through the setting reasonable reinforcing structure, restrains the deformation trend in the bearing process of inspection well, and then improves the bearing capacity of inspection well.

The present application relates to a kind of methods for restoring porosity evolution of clastic reservoirs under tectonic extrusion, belonging to the technical field of oil and gas exploration and development.The method comprises the following steps: calculating the total compaction and pore loss of clastic rock samples, selecting samples with similar burial depth, similar rock structure and different maximum paleo-tectonic stress as selected samples, obtaining the lateral compaction and pore loss of the one with larger maximum paleo-tectonic stress by the difference of total compaction and pore loss corresponding to the two selected samples adjacent to the maximum paleo-tectonic stress, and establishing the functional relationship between lateral compaction and pore loss and maximum paleo-tectonic stress;calculating the lateral compaction and pore loss of each lateral extrusion in multiple lateral extrusions;calculating the vertical compaction and pore loss according to the total compaction and pore loss and lateral compaction and pore loss, and establishing the relationship chart between vertical compaction and pore loss and burial depth;using the inverse back stripping method, combining lateral compaction and pore loss and vertical compaction and pore loss, and drawing the porosity evolution curve of clastic reservoirs in geological history under tectonic extrusion.This method solves the problem of being unable to quantitatively calculate lateral and vertical compaction and pore loss in the process of restoring porosity evolution of foreland basin reservoirs.

The application relates to a method for installing and constructing an offshore wind turbine jacket, which can quickly determine whether the jacket is blocked during lowering by judging whether the sling is not stressed, the jacket is not lowered to the design elevation or the jacket is inclined; if the jacket is blocked, a tugboat is controlled to apply a transverse force to the low point of the jacket, so that the lateral extrusion surface of the pile wall of the pile of the insertion tip and the foundation pile is directly separated, the static friction balance is broken, and the gap between the insertion tip and the pile wall is enlarged; the main hook synchronously applies a vertical lifting force, and the jacket is quickly pulled out of the blocking position after the gap is formed. The combined effect of the lateral separation and the vertical pulling of the application can more efficiently break through the blocking threshold, reduce the hard friction damage between the pile wall and the insertion tip, and shorten the unblocking time. The scheme of the application uses two types of conventional offshore construction equipment, i.e., a crane ship main hook and a tugboat, without the need of customizing special devices, and the cooperative operation of the tugboat and the crane ship does not need complex linkage control, so that the equipment investment cost is reduced.