38results about How to "Guarantee the safety of hoisting" patented technology

The invention discloses a reinforced concrete building topdown method construction process, comprising the steps as follows: 1: the foundation, foundation and independent pile foundation construction is carried out; 2: a left supporting concrete column, a right supporting concrete column and a middle supporting concrete column of steel frame are established; 3: the areas between the left supporting concrete column and the middle supporting concrete column and areas between the right supporting concrete column and the middle supporting concrete column are used as hoisting passages of hoisting steel frame; each steel frame is hoisted onto the left supporting concrete column, the right supporting concrete column and the middle supporting concrete column; 4: all steel frames are hoisted on the left supporting concrete column, the right supporting concrete column and the middle supporting concrete column; after the connection and fixing operation, all steel frames are used as the roof of the reinforced concrete building; 5: in the roof, the indoor concrete frame structure is constructed. The method of the invention firstly constructs the side frame and the middle frame column structure, subsequently carries out the hoisting of the steel frame, and constructs the reinforced concrete structure in the clean area after the roof surface has no water, thus saving the construction period, reducing the cost, ensuring the safety hoisting, overcoming the effect of weather and ensuring the construction period and the construction quality.

The present invention discloses a mechanical type automatic catching and laying rail device, consisting of a hook seat, a hanging seat, a guide board, a clamping arm, and a link lever, wherein the hook seat consists of a hanging lug board, an upper gear ring, a lower gear ring, a screw rod, and a T-shaped hook, wherein the clamping arm is connected with the hanging seat by an axle on the hanging seat; one end of the link lever is connected with the hook seat by the axle, while the other end is connected with the clamping arm by the axle; the link lever is connected with the clamping arm to form a four-bar linkage structure; the four link levers are driven to displace by the upward and downward movement of the hook seat so as to open or close the clamping arm and achieve the steel rail catching movement and the steel rail laying movement; the upper gear ring is fixed in the hook seat, while the lower gear ring can be rotated along with the upward movement and the downward movement of the T-shaped hook; the mechanical self-locking and unlocking is realized by the rotation of the lower gear ring and the separation and joggling of the upper gear ring. The device does not need the drive of a power source, and is not restricted by the work environment. Just by the mechanical movement, automatic rail catching and laying can be realized. The device is simple in structure, convenient in operation, practical, reliable, lower in cost, high in economy, and high in practicability.

The invention relates to a hydraulic adjustable hub sling for a wind-driven generator and belongs to a mounting sling for the wind-driven generator. The hydraulic adjustable hub sling is characterized by mainly comprising a main suspension arm, adjusting arms, a left connecting seat board, a right connecting seat board, a hoisting board and a shackle, wherein the main suspension arm is a long strip-shaped vertical panel which is laterally arranged; connecting holes are respectively formed in the left end part, the right end part and the middle of the main suspension arm; the left connecting seat board and the right connecting seat board are fixedly arranged in the connecting holes in the left end part and the right end part of the main suspension arm; the left connecting seat board and the right connecting seat board are mainly formed by welding a base plate and front vertical plates as well as rear vertical plates; holes are formed in the upper parts of the front and rear vertical plates of the left connecting seat board; hydraulic oil cylinders are hinged in the holes of the front and rear vertical plates of the left connecting seat board by pin rolls; two bolt holes are respectively formed in the base plate; front and rear adjusting arms are hinged in the connecting hole in the middle of the main suspension arm by using pin rolls; holes are formed in the upper sections of the front and rear adjusting arms; a piston rod is hinged in the holes of the front and rear adjusting arms by using pin rolls; holes are formed in the upper end sections of the front and rear adjusting arms; the hoisting plate is hinged in the holes in the upper end sections of the front and back adjusting arms by using pin rolls; the shackle is arranged on the hoisting plate; and the mounting angle of a hub is adjusted to be accurately aligned with a cabin.

The invention provides an automatic bag folding and integrated packaging system, and belongs to the technical field of works. The automatic bag folding and integrated packaging system solves the problems that an existing bag folding and integrated packaging machine is low in working efficiency, and many workers are needed. The automatic bag folding and integrated packaging system comprises a rack and a bag folding trolley. The rack is provided with a horizontal roller conveying line, a falling control device with a supporting plate and used for controlling falling of bags and a high-speed conveying line connected with the roller conveying line in series and capable of conveying the bags to fall on the supporting plate. The bag folding trolley is located below the falling control device. According to the automatic bag folding and integrated packaging system, the roller conveying line can adjust the postures and intervals of the bags automatically, and workers in the corresponding processes are saved; the high-speed conveying line guarantees that the bags totally fall on the supporting plate, and the postures of the bags falling on the supporting plate are the same, and thus the corresponding adjusting personnel is saved; at the bag folding trolley, only one lifting worker is needed to arrange a hook ring for lifting the bags in a lifting hook of a lifting device in a sleeving mode, and the automatic bag folding and integrated packaging system has the advantage that the workers required by operation are less.

The invention relates to a reinforcing device and method for an overweight reinforcement cage of an ultra-deep underground diaphragm wall. The overweight reinforcement cage is provided with a liftingpoint U-shaped rib, a longitudinal main rib and a hoisting point horizontal truss rib. One end of the hoisting point horizontal truss rib is fully welded with the lifting point U-shaped rib and the longitudinal main rib, and the other end is fully welded with the hoisting point horizontal truss rib at the position. When the reinforcement cage is hoisted through the L-shaped reinforcing rib, pulling force is transmitted to the longitudinal main rib and a longitudinal truss rib from the hoisting point U-shaped rib and then transmitted to the horizontal truss rib. 10cm full-length welding is adopted between left and right four sealing ribs of the hoisting point horizontal truss rib and a horizontal rib, so that the problem that the sealing rib is infirm in connection and even fall off due tooverlarge stress deformation at the hoisting point and cracking of the welding points of the sealing rib and the horizontal rib when the reinforcement cage is lifted is solved. The method is a reinforcing measure provided in an ultra-deep underground diaphragm wall construction process for solving the problems that when an overweight reinforcement cage is hoisted, stress at a hoisting point is concentrated, deformation easily occurs, a reinforcement welding point is cracked, and the reinforcement cage integrally deforms and is even broken.

The invention discloses a three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool. The three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool comprises three heavy load long-stroke lifting multi-stage trapezoidal lead screws, a lifting tool foundation platform, a lifting work platform, three sets of motor drive assemblies, three sets of spherical hinges and three cross joint hinges. Each heavy load long-stroke lifting multi-stage trapezoidal lead screw is mounted on the lifting tool foundation platform through the corresponding motor driveassembly and spherical hinge. The lifting work platform is connected with the lower ends of the three heavy load long-stroke lifting multi-stage trapezoidal lead screws through the three joint hinges. The heavy load long-stroke lifting multi-stage trapezoidal lead screws are driven by the motor drive assemblies to achieve long-stroke telescopic lifting motion, the spherical hinges are connected with the heavy load long-stroke lifting multi-stage trapezoidal lead screws through the motor drive assemblies, and then axial loads of the lifting heavy load long-stroke lifting multi-stage trapezoidal lead screws are borne. The three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool solves the problems of vertical narrow space heavy loads, load distribution and motion precision well.

The invention discloses a unilateral glass rib-reinforcement cage structure for a shield tunnel portal diaphragm wall. The structure comprises an underground diaphragm wall reinforcement cage, a tunnel portal steel ring is tightly attached to and connected to the soil backing side face of the underground diaphragm wall reinforcement cage, an annular reinforcement truss which is concentric with thetunnel portal steel ring is connected between a soil facing side face and a soil backing side face of the underground diaphragm wall reinforcement cage, the annular reinforcement truss is located onthe periphery of the tunnel portal steel ring, the parts, located on the inner periphery of the tunnel portal steel ring, of soil facing side vertical reinforcements striding over the tunnel portal steel ring are replaced by vertical glass fiber bars, and the parts, located on the inner periphery of the tunnel portal steel ring, of soil facing side horizontal reinforcements striding over the tunnel portal steel ring are replaced by horizontal glass fiber bars. The tunnel portal steel ring is used for receiving and pre-burying a shield tunneling machine when serving as a main body structure, and the arranged annular reinforcement truss is used for ensuring that the glass fiber bars are not influenced by gravity to be infinitely broken when the reinforcement cage is lifted, so that the lifting safety of the reinforcement cage can be ensured, and the stress requirement of a wall body can be met.

The invention relates to a construction method of a reinforced concrete box girder, which comprises the following construction steps: 1, placing a steel box girder body on the ground, and pouring andmaintaining bridge deck concrete and flange plate concrete on the ground; 2, installing scaffold units on the ground on the same outer side faces of two bridge piers, and the scaffold units extend into the bottoms of flange plates of a first reinforced concrete box girder; 3, hoisting the first reinforced concrete box girder, loosening hooks, stressing the scaffold units, supporting the flange plates, and therefore preventing the reinforced concrete box girder from overturning due to the eccentric effect; and 4, hoisting the second reinforced concrete box girder, wherein the second reinforcedconcrete box girder is not loosened after being in place, and using a long-strip angle steel to weld with two steel box girder bodies, so that the two steel box girders are pulled and connected into awhole, and the second reinforced concrete box girder is prevented from overturning. The construction method has the technical effects that the construction period of the reinforced concrete box girder is short, and hoisting is safe.

The invention relates to a crane installation process. The crane installation process includes: step 1, obtaining planeness of a flange plane of a crane base seat, obtaining the length, the width andthe diagonal size of the crane base seat and crane mast body connection ports, and detecting deviation value between the crane base seat and each crane mast body connection port; step 2, hoisting a mast body, fixing the mast body on a ship body through welding, surveying and scribing a 100 horizontal reference line on a folding opening of an upper port and completing drift pin marking after construction completes, hoisting the crane base seat, and surveying and scribing the other 100 horizontal reference line on a folding opening of a lower port and completing drift pin marking; step 3, aftercompleting inspection of the size of the crane base seat and confirming that accuracy of the size of the crane base seat meets requirements, butting the crane base seat against the mast body, and placing and welding the crane base seat and the mast body in the vertical direction. The crane installation process is simple, can directly hoist the components onto the ship body for installation, reduces construction difficulty, and improves construction efficiency, and by adopting the above welding method for welding, quality of a welding seam can be guaranteed, and hoisting safety is ensured.

The invention discloses a hydrogenation reactor for petrochemical engineering and belongs to the technical field of petrochemical engineering. An inlet distributor is fixed on an upper spherical cover, a catalyst entering the hydrogenation reactor is fully dispersed and diffused, full contact between crude oil and the catalyst is realized, the crude oil is fully cracked and decomposed in a refining device, and the effective utilization rate of the catalyst can be increased. An outlet collector is placed at the bottom of a lower spherical cover and can recycle the catalyst which is not fully utilized by the crude oil, effective utilization of the catalyst is further improved, the crude oil refining cost is reduced, and the crude oil refining benefits are increased. A longer thermocouple isreliably fixed on the inner wall of the hydrogenation reactor in an inner extension tube support manner, the structural strength of a thermocouple sleeve is improved, and bending or damage to the thermocouple sleeve during usage is avoided.

The invention relates to a special superstructure general assembly lifting lug structure which comprises a superstructure body, bulkheads and lifting lugs, the superstructure body comprises a plurality of bulkheads, the lifting lugs are fixed to the tops of the bulkheads in a segmented mode, the superstructure body can be directly lifted through matching of the lifting lugs and steel wire ropes, and the overall lifting strength of a superstructure is guaranteed; the installation method comprises the steps that 1, on the premise that the overall hoisting strength of the superstructure is guaranteed, a lifting lug style is planned; 2, the top structure of the bulkhead is modified, and a lifting lug mounting groove is reserved and changed into a form capable of being used for lifting; 3, thelifting lugs are installed and fixed, the lifting safety is guaranteed, a lifting scheme is considered in the superstructure segmented drawing design stage, part of the bulkhead top structure is modified, the structure is directly made into a continuous lifting ring and permanently reserved, the stability and structural strength of the lifting lugs are enhanced through toggle plates, the subsequent lifting lug installation work is reduced, and the construction period is shortened. Under the condition of guaranteeing the hoisting safety, the simple steel wire rope configuration is used for hoisting, the construction amount is reduced, and the hoisting risk is reduced.

The invention discloses a tower crane video monitoring system which is mainly used for a tower crane in the field of constructional engineering. A tower crane driver can observe the dead zone situation of the ground through the tower crane video monitoring system to ensure hoisting safety. The tower crane video monitoring system is mainly composed of a camera A, two cameras B, a bracket A, a bracket B, a wireless signal receiver, a coiling wheel, a signal output line A, a signal output line B, a signal output line C and a signal line fixing rack. The main working principle of the tower crane video monitoring system is as follows: when a translation trolley is moved below a lifted object, the tower crane driver can remotely observe the ground situation through a video signal transmitted by the camera A; when a lifting hook descends to the lifted object, the tower crane driver can observe the surrounding situation of the lifted object at short range through the video signals transmitted by the two cameras B; and the tower crane driver adjusts the viewing angles of the two cameras in a controlling room to observe the lifting hook and the binding in-position situation of a steel wire rope.

The invention discloses an F-shaped standard frame for assembly and disassembly of a prefabricated beam formwork and a construction method and belongs to the technical field of efficient assembly anddisassembly of prefabricated beam formworks. According to the construction method, the F-shaped standard frame is welded and assembled with I-steel, and the F-shaped standard frame cooperates with a beam plant gantry crane to transfer the formwork, and the method can rapidly and effectively improve the formwork disassembly and assembly efficiency; besides, action force is exerted on a cross rib inthe formwork, and therefore the safety risk caused by a long load distance, rotation and the like in the formwork transferring process can be lowered. Firstly, the machined standard frame is conveyedto below a formwork needing disassembly (assembly) through the gantry crane; then, workers cooperate with the gantry crane to clamp the standard frame at the cross rib on the outer side of the formwork and detect whether the standard frame is firm or not, the gantry crane is adopted to convey the formwork to an operation platform, and the operations are sequentially and circularly conducted untilthe task is completed. The F-shaped standard frame for assembly and disassembly of the prefabricated beam formwork achieves the effects of lowering safety risk, reducing damage to the formwork, improving construction efficiency, accelerating construction progress and then lowering construction cost.

The invention discloses a rapid installation closure construction method for a steel beam bolting closure section splice plate. A hinge device is positioned firstly, and then the splice plate is installed on a closure section beam body through the hinge device so that the needed splice plate is temporarily fixed in the end surface of the closure section beam body before the closure section beam body is hoisted, and the hoisting safety is effectively guaranteed; hoisting operation is convenient, during closure, temporary fixation is removed firstly, then the splice plate is directly rotated to the position, to be connected, outside the end surface of the closure section beam body to the closure section beam body and the installed beam section, then the splice plate is fixed through bolts, closure of the installed beam section and the closure section beam body is completed, and repositioning during closure is not needed; and the splicing plate does not need to be hoisted outside the closure section beam body, the construction difficulty of splice plate construction of the closure section beam body and the installed beam section at a high altitude can be reduced, the efficiency can be improved in the construction process of splice plate construction of the closure section beam body and the installed beam section, the construction period is shortened, and the construction safety risk is reduced.

The invention discloses a tool for fabricated concrete wall lifting adjustment, a fabricated wall and a construction method. The tool for the fabricated concrete wall lifting adjustment comprises a structural member and a bolt. The structural member comprises a first base plate and a second base plate connected with the first base plate. A through hole is formed in the first base plate, and a crowbar insertion hole is formed in the second base plate. The through hole is used for enabling the bolt to pass through, and the bolt is used for fixedly connecting the structural member to a prefabricated part. The tool, the fabricated wall and the construction method can reduce the damage to a concrete wall surface and a corner protection layer in the prizing process of the crowbar (that is, avoidthe direct contact between the crowbar and a wall body so as not to damage the wall body and destroy the integrity of the part), ensure the attractiveness, and ensure the quality of the part.

The multifunctional connecting device comprises a lower jaw plate, an upper pressing plate and a rotating shaft, a through hole is formed in one end of the lower jaw plate, the other end of the lower jaw plate inclines upwards, the upper pressing plate comprises a hook part and a connecting part, the hook part is arranged at the upper end of the connecting part, and the lower end of the connecting part is rotationally connected with the middle of the lower jaw plate; the multifunctional connecting device comprises a through hole, a rotating shaft and a hanging ring, the rotating shaft is rotationally connected into the through hole, the two ends of the rotating shaft are exposed out of the two sides of the through hole, the hanging ring is in a U shape, and the two ends of the hanging ring are detachably connected with the two ends of the rotating shaft. Small-size deviation of the gravity center is automatically repaired through rotation of the hook and the rotating shaft, hoisting safety is guaranteed, the device is suitable for being used for connection of various traction beams and bogies, the device can be integrally removed by loosening the hanging ring and the axle during dismantling, operation is easy, and the device can be used for next time.

The invention relates to an uhpc-based prefabricated formwork-removal-free steel bar truss floor support plate. The floor support plate is composed of uhpc bottom formworks, steel bar trusses, steel bar truss uhpc bonding belts and steel bar truss uhpc anchoring blocks, the uhpc bottom formworks are formed by pouring uhpc, and bottom formwork connecting structures are formed on the edges of the uhpc bottom formworks and used for connecting the two adjacent uhpc bottom formworks; and the steel bar trusses are arranged on the uhpc bottom formworks and connected with the uhpc bottom formworks through the steel bar truss uhpc bonding belts and the steel bar truss uhpc anchoring blocks to form a whole. According to the formwork-removal-free steel bar truss floor support plate, the material durability is good, the using amount is low, and the structural stress performance and the anti-seismic performance of a fabricated floor slab are achieved with low engineering cost. The floor support plate is low in resource and energy consumption, environment-friendly in industrialized production, high in construction speed, simple in connection, convenient and fast to construct, light in component weight and convenient to transport, hoist and mount, can be widely applied to low multi-story, high-rise and super high-rise buildings of various residences, offices, hotels, business and the like, and is a high-quality fabricated floor slab.