49results about How to "Fully stressed" patented technology

A construction method of reinforcing a large-span concrete structure with prestressed carbon fiber sheet comprises the following steps of forming bolt embedding holes on the side surface to be reinforced of the large-span concrete structure, and embedding high-strength bolts of different specifications into the bolt embedding holes through adhesive glue; fabricating stretch sheet fixing portions, stretch sheet moving portions and stretch power fixing portions; mounting the stretch sheet fixing portions, stretch sheet moving portions, stretch sheet assembling units, stretch power fixing portions and stretch power portions, wherein the stretch sheet assembling units, the stretch power fixing portions and the stretch power portions are made of carbon fiber materials; stretching stretch sheet; and removing stretching power and tightly pressing and adhering the stretch sheet onto the surface of the large-span concrete structure. The construction method of reinforcing the large-span concrete structure with the prestressed carbon fiber sheet can achieve the gapless adhesion between the prestressed stretch sheet and the concrete structure to be reinforced, facilitate the coordination of the uniform stress force of the same sections of the carbon fiber filaments of the stretch sheet, improve the integral stress performance of the prestressed carbon fiber sheet and the coordination deformation capability of the prestressed carbon fiber sheet and the concrete structure and give full play to the high-strength characters of the carbon fiber sheet.

A convertible piece of upholstered furniture can be converted via motorized conversion aids from a seat function into a bed, by way of any desired number of intermediate stages, and vice versa. All movable parts can be fully stressed by a person during conversion, even when a person is sitting or lying on the piece of furniture. These changes can take place even when the piece is being used by a person, whereby each movable part of the piece of upholstered furniture can be changed by means of a motor drive having a control. The footrest and the seat part are configured so that they can move out of a base frame with their metal fittings. A lever construction arranged on the metal fitting of the footrest and a motor drive adjusts the height and angle of the footrest and moves the piece of furniture to the various positions.

The invention relates to the field of coal slurry pretreatment, in particular to a multi-impeller mixed flow field ore pulp preprocessor based on ore pulp pipeline pressure drive. The multi-impeller mixed flow field ore pulp preprocessor comprises a mixing box, a driving rotary shaft and a driven rotary shaft. A driving gear is coaxially arranged on the driving rotary shaft, and a driven gear is arranged on the driven rotary shaft to form the meshing relation. A driving turbine is further coaxially arranged on the driving rotary shaft. A group of stirring impellers is fixed to the driving rotary shaft, and a group of stirring wheels is fixed to the driven rotary shaft respectively in a coaxial and mutual equal-height mode. In the vertical direction, the stirring impellers and projections of the stirring impellers produce intersections. A guide sleeve is arranged under the driving turbine. Guide blades are arranged inside the guide sleeve in a circinate mode, and the rotating direction of the mixed liquid guided by the guide blades is mutually identical to the rotating direction of the stirring impellers under the guide blades. The multi-impeller mixed flow field ore pulp preprocessor can play a very good hardening and tempering effect on floated coal slime, is especially suitable for slurry-mixing and quality-improving demands of fine coal difficult to float and is high in working efficiency, and the preprocessing process is quick and convenient.

The invention relates to a cylinder sleeve fatigue test device. An annular sunk groove (13) and an annular sealing protrusion (14) used for supporting a cylinder sleeve (3) are arranged on a bearing cylinder body (1), a counter bore matched with a combined cylinder cover (2) is formed in an upper opening of the cylinder body, an oil inlet port and a sensor port are formed in an oil inlet (6) and an upper port of a pressure monitoring hole (7) in the cylinder body respectively, the cylinder sleeve (3) is arranged in the bearing cylinder body (1), the combined cylinder cover (2) is arranged in the counter bore of the combined cylinder cover (2) and the cylinder sleeve (3) in a sealing sleeved mode, a cylinder cushion (4) is arranged at the position where the combined cylinder cover (2) is connected with the cylinder sleeve (3), and an upper edge opening of the cylinder sleeve (3) and a simulation combustor cavity form a simulation combustor (8). According to the cylinder sleeve fatigue test device, sealing hidden troubles in the cylinder body are eliminated, stability of the test process is improved, the adjusting range of the pressure in the cylinder body is enlarged, and a cylinder sleeve fatigue examination and a fault reappearance test are facilitated.

The invention relates to an offshore wind turbine composite foundation and a foundation reinforcement construction method. The composite foundation comprises a single-pile foundation body and a peripheral friction body, wherein the peripheral friction body is of a concrete integrated pouring structure with built-in steel bars and is in a circular truncated cone shape; the single-pile foundation body is sleeved with the peripheral friction body; the peripheral friction body makes contact with the upper end of a foundation soil body; vertical construction hole channels which communicate the upper end with the lower end and are used for achieving grouting are formed in the peripheral friction body; a plurality of vertical construction hole channels are evenly distributed on one or more circles of circumference; and a steel pipe nail is connected into each vertical construction hole channel in a pouring mode or fixedly inserted into each vertical construction hole channel, the lower section of each steel pipe nail extends out of the lower end of the peripheral friction body and is inserted into the foundation soil body, and guniting holes are evenly distributed in the pipe wall of eachsteel pipe nail. According to the composite foundation, the contact area between the foundation and a subgrade is increased, grouting reinforcement treatment can be conducted on the soft soil foundation, thus the bearing capacity of the subgrade and the foundation can be improved, integrated construction is achieved, and seabed pretreatment is reduced.

The invention discloses a plug-in board connection assembly and a steel pipe tower of a power transmission line. The plug-in board connection assembly includes two gusset plates arranged in a cross shape as a gusset plate joint and two plug plates arranged in a cross shape as a plug-in board joint, and the gusset plate The joint and the plug-in board joint are butt-connected together by using fasteners through the connecting member, and the connecting member includes two, three or four angled pieces, wherein the two angled pieces are symmetrically arranged with respect to the center of the plugged-in board connection assembly. Through the plug-in plate connection assembly of the present invention, the advantages of simple connection, good structural force coordination, strong stability and sufficient force of angle steel or bent plate are realized.

The invention discloses an inserted plate connection assembly and a power transmission line steel pipe tower. The inserted plate connection assembly comprises two gusset plates and two inserted plates, wherein the two gusset plates are arranged in a cross shape to form a gusset plate joint; the two inserted plates are arranged in a cross shape to form an inserted plate joint; the gusset plate joint and the inserted plate joint are abutted by a connection component through a fastener; the connection component comprises two, three or four bent plates; and two bent plates are symmetrically arranged relative to the center of the inserted plate connection assembly. The inserted plate connection assembly disclosed by the invention realizes the advantages of simple connection, high structure stress coordination, strong stability and sufficient stress of angle iron or the bent plates.

A hot repairing method for the inflatable tyre includes such steps as abrading the damaged position, sticking the hot-repairing rubber pads onto its inner and outer surfaces, attaching a heating belt to the inner surface, inflating internal tube, installing it in steel basin, putting a module on the outer surface of damaged position, putting a sulfurizing machine on the module, and inflating internal tube to 2.5-6 Kg/sq.cm while electrically heating it to 140-150 deg.C for 25-120 min.

The invention discloses a filling and pressing device for building decoration waste materials. The filling and pressing device comprises a box body, a movable plate and an upper pressing plate, hydraulic telescopic cylinders and a bottom plate, wherein the movable plate is rotationally connected to the opening of the box body through a hinge seat, the bottom end of the movable plate is fixedly connected with a buckle used for being fixedly clamped with the bottom end of the box body, a garbage inlet is formed in the position, close to the hinge seat, of the middle of the movable plate, one side of the upper pressing plate is fixedly arranged at the ends of supporting arms of the hydraulic telescopic cylinders, anti-skid granular protrusions are arranged on the other side of the upper pressing plate, the other ends of springs are fixedly arranged on the bottom surface of the inner side of the box body, six anti-collision columns are evenly and fixedly arranged on the bottom surface of the bottom plate, and the springs and anti-collision columns are arranged below the bottom plate, so that the solid waste can be stably stressed in the compaction process, the garbage can be bounced upby a certain distance through the counter-acting force of the springs, the garbage can be conveniently taken out and transported, and the device is simple and practical.

The invention relates to the technical field of solid waste treatment, and discloses a device for recycling building waste. The device comprises a rack, wherein the inner wall of the rack is fixedly connected with a crushing bracket; a slide block is connected inside the crushing bracket in a sliding mode; the front surface of the slide block is movably connected with a crushing gear; the outer wall of the crushing gear is movably connected with a transmission gear; the back surface of the crushing gear is movably connected with a belt; the outer wall of the belt is movably connected with a drive disc; the opposite end of the slide block is movably connected with a crushing roller; and the outer wall of the crushing roller is movably connected with a crushing tooth sleeve. According to the device for recycling building waste disclosed by the invention, the crushing roller drives the slide block to extrude a return spring towards the two sides, the slide block drives the crushing gear to be engaged with the transmission gear, and the transmission gear drives the crushing gear to rotate with high torque at low speed, so that crushing ability of the crushing roller is improved, and the building waste is prevented from blocking the crushing device to burn a motor.

The invention discloses an iron plate twisting device which comprises a platform, a torsion device for clamping and a first clamping device, wherein the torsion device and the first clamping device are arranged on the platform. The torsion device comprises a supporting seat arranged on the platform, a sleeve is arranged on the upper portion of the supporting seat, a clamp penetrates the sleeve, across clamping opening is formed in the front end of the clamp, a rotating wheel is arranged at the rear end of the clamp, and the first clamping device is used for clamping the other end of an iron plate. The iron plate twisting device is sufficient in stress, stable in clamping and convenient to operate, and products in attractive and uniform shapes can be more easily machined.

The present invention discloses a gear machining and heat treatment process, and the gear machining process successively comprises forging, normalizing, quenching and tempering, vertical machining, gear shaping, annealing, vertical machining, gear shaping, vertical milling, stabilizing aging, gear grinding, nitriding and finished product inspection, wherein the step of normalizing is normalizing at (880 +/-10) DEG C for (3-4) h, and then cooling in air; the step of quenching and tempering is quenching and tempering at (850 +/-10) DEG C for (3-4) h, quenching with water, and cooling with oil; the step of the annealing is annealing at (530 +/-10) DEG C for (3-4) h, cooling in a furnace in the heating and cooling rate of less than or equal to 50 DEG C / h; the step of stabilizing aging is stabilizing aging at (510 +/-10) DEG C for (3-4) h, and cooling in the furnace in the heating and cooling rate of less than or equal to 2 5 DEG C / h; and the step of nitriding is nitriding at (510 +/-10) DEG C for (10-12) h, and cooling in the furnace in the heating and cooling rate of less than or equal to 2 5 DEG C / h. The gear machining and heat treatment process is more reasonable, and can reduce distortion after nitriding to improve the overall performance of a gear.

The invention discloses a profile modeling winding technology and a profile modeling winding machine. According to the profile modeling winding technology and the profile modeling winding machine, in the winding process, yarn material gaps can be effectively removed, bubbles can be removed, and the process from the attaching state to the winding completing state can be maintained. The profile modeling winding machine comprises a machine frame, an upper roller, a lower roller and a vacuumizing pump, the upper roller is in rotation connection with a pushing frame, a pushing air cylinder is arranged on the machine frame, a lower support is arranged on the machine frame, the lower roller is in rotation connection with the lower support, locking heads are arranged between the pushing frame and the lower support, a profile modeling pressing strip is arranged between the locking heads and fixed by the locking heads, a ventilation pipeline connected with the vacuumizing pump is arranged in one locking head, and a working table plate is arranged on the machine frame. The profile modeling winding technology and machine have the advantages that the winding process is mechanically completed, and is stable and efficient, tight scraping operation is carried out before winding, the yarn material can be attached in a compact mode, the stress area in rolling is large, stress is sufficient, it is effectively ensured that the clearance can be removed, and the high-quality yarn material workblank is wound.

The invention relates to the technical field of feed processing, and discloses a crushing and stirring device for producing a poultry feed. The crushing and stirring device comprises a rack, a sieve plate is fixedly connected to the inner wall of the rack, a crushing bin is fixedly connected to the outer wall of the sieve plate, and a transmission shaft is inserted into the crushing bin; and the top end of the transmission shaft is fixedly connected with a first transmission gear, the outer wall of the first transmission gear is engaged with a second transmission gear, a crushing shaft is inserted into the second transmission gear, and the outer wall of the transmission shaft is sleeved with a first rotary disc. According to the crushing and stirring device for producing the poultry feed,the first transmission gear drives the second transmission gear to rotate so as to drive a crushing shaft to rotate, the crushing shaft drives a crushing cutter to cut raw materials in a bin body, a fixing rod drives the crushing shaft to rotate, and revolution and autorotation of a crushing assembly are combined, so that the raw materials are stressed more sufficiently, the crushing effect is better, and the crushing time is shorter.

The invention discloses a fabricated ground and a mounting method, and relates to the technical field of architectural decoration. The fabricated ground specifically comprises bearing base plates, adjusting feet and a fixed device, wherein the bottoms of the adjusting feet abuts against the ground, the tops of the adjusting feet is used for bearing the two adjacent bearing base plates, and the fixed device is used for fixing the bearing base plates to the adjusting feet; when the adjusting feet adjust the height of the adjusting feet, the two adjacent bearing base plates are leveled; the fabricated ground further comprises a balance layer and a surface layer, wherein the bearing base plate is covered with the balance layer, and the balance layer is covered with the surface layer. According to the fabricated ground, one ends of the two adjacent bearing base plates are carried on the adjusting feet, then the bearing base plates are fixed to the adjusting feet through the fixed device, the bottoms of the adjusting feet abut against the ground, and then the self-heights of the adjusting feet are adjusted, so that leveling of the two adjacent bearing base plates is achieved; finally, the bearing base plate is covered with the balance layer made of cement fiber plates, tiles or wood floors are laid on the cement fiber plates to serve as panels, and laying of the fabricated ground is completed.

The invention discloses a bidirectional laminated slab dense splicing strong seam structure. The bidirectional laminated slab dense splicing strong seam structure comprises a prefabricated slab and a cast-in-place layer, wherein bottom plate steel bars and bottom plate connecting bars are arranged in the prefabricated slab, the bottom plate steel bars comprise bottom plate load-bearing steel bars and bottom plate fixing steel bars, the bottom plate fixing steel bars are close to a splicing seam of the prefabricated slab, bent upwards and extend out of the surface of the prefabricated slab, additional steel bars and top plate compression steel bars are longitudinally laid in the cast-in-place layer, every two adjacent additional steel bars are connected to one top plate compression steel bar through a connecting web bar, the additional steel bars are perpendicular to the abutted seam, additional fixing steel bars are further arranged at the two ends of the additional steel bars and arranged in the vertical direction, and top plate connecting ribs and the top plate compression steel bars are laid in the transverse direction and in an overlapped mode. The bidirectional laminated slab dense splicing strong seam construction structure is high in integrality and bearing capacity, and the stability of the laminated slab near the abutted seam is high.

The invention discloses a vehicle wheel bearing assembly and belongs to the field of vehicle design. The vehicle wheel bearing assembly comprises a first bearing part and a second bearing part. Upper surfaces of the first bearing part and the second bearing part are provided with sine surfaces of the same cycle length. The cycle length of the sine surfaces is correlated with the sprung mass resonance frequency of a vehicle of a predetermined type. The first bearing part and the second bearing part provide travel section for the vehicle at the same time, wherein the first bearing part is designed to enable a left tire of the vehicle to travel, and the second bearing part is designed to enable a right tire of the vehicle to travel. The vehicle wheel bearing assembly solves the problem that the stress relief of a vehicle plate spring is insufficient when the bumpy road test on vehicles of various types is conducted on the same bumpy road, and can carry out the bumpy road test by determining a suitable bumpy road for a vehicle based on the sprung mass resonance frequency of the vehicle, thereby achieving the effect of fully releasing stress of a vehicle plate spring.

The invention relates to and discloses a mounting system for height-difference-free dry and wet areas of a fabricated toilet, and relates to the technical field of bathrooms. The mounting system specifically comprises a plastic bottom box mounted in the wet area of the toilet and a flexible bottom box mounted in the dry area of the toilet; the junction of the dry area and the wet area is surrounded by abutting of the vertically-arranged plastic bottom box and the vertically-arranged flexible bottom box; and the mounting system further comprises a linear floor drain mounted in the plastic bottom box and close to the junction of the plastic bottom box and the flexible bottom box, and veneers covering the plastic bottom box and the flexible bottom box. According to the invention, the dry area and the wet area of the toilet are separated through the plastic bottom box mounted in the wet area of the toilet and the flexible bottom box mounted in the dry area of the toilet; the linear floor drain is mounted in the plastic bottom box and is used for discharging water in the wet area; and the veneers cover the plastic bottom box and the flexible bottom box, and the tops of the veneers are flush, so that the problem of height difference at the junction of the dry and wet areas is solved, and barrier-free access of bathroom ground is achieved.