10results about How to "Lifting safety" patented technology

The application introduces a kind of supporting and fixing device of cylindrical component and its using method, the fixing device includes support beam and the fixed support that sets on both ends of support beam;The fixed support includes support body, support block, swing press plate, compression block, cushion block and locking plate.The structure of the application is reasonable, the cooperation degree is high, and the disassembly and assembly are quick and convenient;The L-shaped hole on the locking plate will not loosen and cause compression failure after contacting with the positioning shaft B to produce pressure and locking the cylindrical product;And when the positioning shaft B is located at the upper part of the L-shaped hole, the two swing press plates are completely opened, compared with the traditional semicircular fixing device, the lifting center of gravity is reduced, and the lifting safety and reliability are guaranteed;The cushion block can be replaced, which is convenient to replace after aging or damage, and prolongs the service life of the fixing device;All components are flexibly connected, compared with the transmission separation type fixing device, to avoid parts scattering;According to the size of the cylindrical component product, multiple fixed supports can be set, which has strong adaptability and wide application range.

The application belongs to the technical field of pile foundation construction, and discloses an underwater automatic pile cutting system and method for pile foundation construction, which comprises an automatic pile cutting control unit and an automatic pile cutting device; the automatic pile cutting control unit comprises an electrical control module, a sensing module, a rotary drive control module and a feeding drive module, which are arranged at different positions in the automatic pile cutting device; the automatic pile cutting device comprises a pile cutting working platform, a hoisting steel wire rope and a crane. The underwater automatic pile cutting which cannot be visually observed in pile foundation construction is realized through the cooperation of software and hardware, the sinking speed of the cutting device can be accurately measured and controlled in the sinking process of the automatic cutting device through the positioning rope of the crane, the stable operation is ensured, the cutting head of the rotary mechanism is equipped with four circular blades, the rotation speed and the feeding speed of the blades are controlled through a servo motor, and the cutting efficiency and quality of the automatic rotary cutting are ensured.

The application discloses a large-diameter heat supply pipeline inclined hoisting method and belongs to the technical field of heat supply pipeline construction. The method comprises the following steps: S10, calculating a preset inclination angle of pipeline hoisting and a preset installation position of lifting lugs according to pipeline parameters and shield well hoisting hole parameters; S20, installing the lifting lugs on the pipeline according to the preset installation position of the lifting lugs; S30, connecting the lifting lugs at both ends of the pipeline with a main crane and an auxiliary crane respectively, driving the main crane and the auxiliary crane to hoist the pipeline in parallel and synchronously translate the pipeline to above the shield well wellhead; S40, driving the main crane and the auxiliary crane to incline the pipeline to the preset inclination angle; S50, synchronously lowering the pipeline to a preset positioning point of the shield well by the main crane and the auxiliary crane, disconnecting the main crane, the auxiliary crane and the pipeline, and completing pipeline hoisting. The application can reduce the pipeline hoisting difficulty in the narrow vertical shaft space in the prior art, improve hoisting safety and hoisting installation efficiency.

The component gantry crane and fine adjustment balance control method thereof disclosed by the application realize high-precision displacement adjustment of components through fine adjustment devices to improve hoisting precision, reduce engineering cost, ensure controllable stress of hoisting ropes and improve safety performance of assembly operation under the premise of improving construction efficiency, and have important popularization value for installation of large subway stations. The component gantry crane comprises a portal, two groups of omni-directional fine-adjustable hoisting trolley devices are movably arranged on the top of the portal, the two groups of omni-directional fine-adjustable hoisting trolley devices respectively vertically suspend adjustable balance hoisting devices, the adjustable balance hoisting devices are installed on a cross beam in the vertical direction, four groups of hoisting device force adjusting devices are installed on the cross beam, and hoisting ropes of the hoisting device force adjusting devices suspend prefabricated components; the omni-directional fine-adjustable hoisting trolley device comprises an upper trolley lifting part borne on a lower trolley running device and an upper trolley translation mechanism; running between the upper trolley translation mechanism and the lower trolley running device is perpendicular in the horizontal direction.

The utility model discloses a mould hoisting structure for a permanent magnet jack, which comprises a cross beam and a mould to be transported, and further comprises a hoisting reinforcing mechanism, the hoisting reinforcing mechanism comprises a second electric telescopic rod arranged on the cross beam, the fixed end of the second electric telescopic rod is provided with a connecting rod, and the fixed end of the second electric telescopic rod is provided with a clamping groove; the other end of the connecting rod is connected with a permanent magnet lifting module, an air bellow is arranged at the end, away from the connecting rod, of the fixed end of the second electric telescopic rod, and the air bellow and the permanent magnet lifting module act together. And the auxiliary protection mechanisms are arranged on the outer walls of the two sides of the cross beam. The mold hoisting structure for the permanent magnet jack has the technical effects that the adsorption effect is improved, magnetic force borne by all parts of an object to be transported is uniform, firm adsorption and safe hoisting are ensured, and meanwhile, local deformation or damage of a mold to be transported caused by uneven stress is also avoided.

The utility model discloses bridge deck system member reinforcement cage in-mold equipment, an in-mold system and a prefabricated part production line, the bridge deck system member reinforcement cage in-mold equipment comprises bearing beams, a bearing frame, a walking unit, a first clamping mechanism and a second clamping mechanism, the bearing frame is bridged on the two bearing beams, and the bearing frame is configured to be capable of walking in the extension direction of the bearing beams; the walking unit is arranged on the bearing frame, and the walking unit is configured to be capable of walking on the bearing frame; the first clamping mechanism and the second clamping mechanism are both connected with the lower portion of the walking unit and are oppositely arranged, and the first clamping mechanism and the second clamping mechanism have a first state that the first clamping mechanism and the second clamping mechanism get close to each other to clamp a bridge deck system component reinforcement cage and a second state that the first clamping mechanism and the second clamping mechanism get away from each other to release the bridge deck system component reinforcement cage. According to the bridge deck system member reinforcement cage mold entering equipment, the mold entering requirement of the reinforcement cage can be met, the mold entering efficiency of the reinforcement cage can be improved, automatic mold entering can be achieved, and the bridge deck system member reinforcement cage mold entering equipment has great popularization value.

The utility model relates to molybdenum iron smelting technical field discloses a kind of hoisting subassemblies for molybdenum iron ingot in molybdenum iron smelting, comprising: belt body, the upper surface of the belt body is evenly equipped with multiple antiskid balls, both sides of the belt body are wrapped with edge strip, the edge strip is sewn with belt body by sewing thread, the edge strip and belt body are spun from spinning thread, the antiskid ball is connected with belt body by connecting assembly. The hoisting subassembly for molybdenum iron ingot in molybdenum iron smelting, through the cooperation between each component, it is convenient to carry out stable hoisting operation to molybdenum iron ingot, antiskid ball is installed between belt body by connecting assembly during, can greatly enhance the connection stability between antiskid ball and hoisting belt, effectively avoid the situation that partial antiskid ball falls off in subsequent hoisting operation, ensure that stable and reliable hoisting operation is carried out to molybdenum iron ingot.

The utility model discloses a lifting hook connecting structure of a hydraulic lifting type monorail crane, which relates to the technical field of monorail crane accessories, and comprises a monorail crane hung at the lower part of a mine tunnel top plate, a hydraulic telescopic cylinder is fixedly arranged at the lower part of the monorail crane, the hydraulic telescopic cylinder vertically extends downwards, the bottom of the hydraulic telescopic cylinder is connected with a hanging plate, and the hydraulic telescopic cylinder is connected with a hydraulic system. Therefore, up-and-down stretching is realized, and the lifting height of the monorail crane is adjusted; the hydraulic lifting hook is adopted for connection, the length of the hydraulic cylinder can be adjusted according to the height of a mine tunnel, and time and labor are saved.

The utility model discloses a cloth cloth device, including two support platform, support platform fixedly connected with support rod, support rod's top fixedly connected with the crosspiece, install hoist -lift device on the crosspiece, hoist -lift device is used for lifting cloth roll, install telescopic clamping device on the support platform, and telescopic clamping device is used for the cloth roll of fixed cloth roll's cloth roll and is fixed, install tension adjusting device on telescopic clamping device, and tension adjusting device is used for adjusting cloth roll's cloth surface tension. After hoisting cloth roll with hoist -lift device, use telescopic clamping device to lock the both ends of cloth roll's cloth roll and fix, utilize tension adjusting device to ensure that the tension of cloth is always consistent when cloth roll unwinds.

The application discloses a hierarchical buffer, a telescopic support and an electric pedal. The hierarchical buffer is applied to the telescopic support of the electric pedal, and the front surface of the hierarchical buffer is in a wave shape. When first-stage compression buffering occurs, the wave crest of the wave shape is compressed to a certain extent. When second-stage compression buffering occurs, the wave crest of the wave shape is further compressed or the front surface of the wave shape is compressed to be close to a plane. When the telescopic support is in a retracted state, the hierarchical buffer generates the first-stage compression buffering, and a gap exists between the mounting seat of the telescopic support and the telescoping rod. When the telescopic support is in the retracted state and the telescoping rod bears a lifting force, the hierarchical buffer generates the second-stage compression buffering to eliminate the gap, so that the telescoping rod can abut against the mounting seat, and thus the telescopic support forms a rigid support body in the first direction and the second direction. In the above manner, the telescopic support provided by the application can be safely, conveniently and comfortably lifted when the telescopic support is in the retracted state.