60results about How to "Avoid hoisting" patented technology

The invention belongs to the technical field of fracturing construction mechanization, and particularly provides a full-automatic liquid adding device for fracturing construction and an adding calibration method. The full-automatic liquid adding device comprises a prying frame, an engine, a transfer case, a hydraulic device, a liquid adding pump, a metering calibration tank, a liquid additive tank, a liquid supply pump and a control unit, wherein the input ends of the engine, the transfer case and the hydraulic device are sequentially connected; the output end of the hydraulic device is connected with the liquid supply pump and the liquid adding pump; the liquid supply pump is connected with an inlet of the liquid additive tank; an outlet of the liquid additive tank is sequentially connected with inlets of the metering calibration tank, the liquid adding pump and the liquid additive tank; the control unit is electrically connected with the engine, the transfer case, the hydraulic device, the liquid adding pump, the metering calibration tank, the liquid supply pump and the liquid additive tank; and the current situation that in the fracturing construction process, the liquid additive adding precision is large in adding difficulty and discontinuous is avoided, the mechanization and automation degree of fracturing construction is improved, meanwhile, the construction quality and potential safety hazards are effectively eliminated, and the construction success rate is increased.

The invention discloses a semi-automatic fixed die table PC component production system. The system comprises a die table, an operation station and a maintenance station, wherein the operation station and the maintenance station are used for placing the die table. The PC component production system further comprises first guide rails and one or more walking trolleys. The walking trolleys are movably arranged along the first guide rails and used for moving the die table between the operation station and the maintenance station in a reciprocating mode. Each walking trolley comprises a jacking carrying mechanism used for carrying the die table. According to the technical scheme, the trolleys with the jacking carrying mechanisms are used for driving the die table to move between the stations in the reciprocating mode, frequent hoisting is avoided, and the labor intensity of an operator is greatly lowered. In addition, the number of hoisting devices can be effectively decreased, the occupied space of the hosting devices is reduced, and the semi-automatic fixed die table PC component production system has giant advantages and good popularization prospects.

The invention relates to an installing method of a roof mast. The method comprises the following steps: firstly, lifting up a whole steel tube assembly by a windlass; and stopping the windlass when the bottom of the steel tube assembly reaches a base of the lowest place; secondly, connecting a pair of hand-drive block stringers to an outermost layer of steel tube and lifting up or down the steel tube assembly in an alternative working manner in order to fine adjusting the height of the steel tube assembly till the outermost layer of the steel tube is arranged at the base of the lowest place and a base of the lower place, and then keeping the position of the steel tube assembly and welding and fixing the steel tube assembly; connecting the hand-drive block stringers to an innermost layer ofsteel tube in the steel tube assembly, lifting up the innermost layer of the steel tube in an alternative working manner, and stopping the lifting when the length of the sleeved part of the lower endof the innermost layer steel tube and the upper end of an inner layer steel tube sleeved on the innermost layer steel tube is ranged from 0.3-2 m, and then welding and fixing the innermost layer of the steel tube with the inner layer of steel tube; and finally, repeatedly lifting up and welding each remained section of steel tubes sleeved in the outermost layer of the steel tube, and then finishing the installation of the roof mast.

The invention discloses a control valve used for a winch brake, a hydraulic control system of the winch brake and a crane. The control valve comprises a valve body, a first reversing valve is integrated in the valve body, a first oil port, a second oil port and a third oil port are formed outside the valve body, the first oil port is used for being communicated with a pressure oil line with constant external pressure, the second oil port is used for being communicated with a hydraulic oil tank, and the third oil port is used for being communicated with a control oil cylinder of a first winch brake; when the first reversing valve is positioned in the first working position, the first oil port and the third oil port are communicated; and when the first reversing valve is positioned in the second working position, the second oil port and the third oil port are communicated. The special oil ports and oil passages communicated with the pressure oil line with constant external pressure are arranged in the control valve disclosed by the invention, opening and closing of the brake are controlled through the pressure oil line with constant pressure; and in the control mode, pressure for controlling opening and closing of the brake is comparatively constant, the oil line pressure cannot be influenced by loads completely, and a chattering phenomenon during winch hoisting can be effectively relieved.

The invention discloses a full-load passenger car frame overall positioning and clamping tool. The full-load passenger car frame overall positioning and clamping tool comprises a tool underbed assembly, a main body tool assembly, a front axle critical component tool assembly, a rear axle critical component tool assembly, a double-layer beam tool positioning assembly and a gas circuit control system. The tool underbed assembly is formed by welding U-steel to a steel plate, and after aging treatment is conducted, the upper surface of the steel plate is subjected to milling and serves as a positioning block installation datum plane. Accessories such as a thrust rod support, a gasbag installation base plate and a stable rod support which are located on the portions of a front axle and a rear axle and are high in position precision requirement are all positioned through special positioning devices. A pneumatic fixture, linear slide rails and the like which are applied to the tool are all standard parts. All positioning and clamping devices are arranged to be beneficial for automatic demolding of a whole car frame. Clamping and loosening of an air cylinder are controlled by a gas circuit through a two-position five-way valve, in order to ensure gas circuit cleanness and pressure stableness, a gas source adjusting device is installed at an inlet of the gas circuit, automatic production is achieved, the production benefit of car frame welding is increased, and the production quality of products is guaranteed.

The invention relates to a battery pile mounting structure, which comprises a battery box, a pallet and a control box, wherein the pallet is used for bearing the battery pile, and the control box is used for being electrically connected with the battery pile. The battery box consists of a bottom surface and a side wall, an opening is formed in the side wall, the control box is arranged in the opening, the bottom surface, the side wall and the control box define a box body, the pallet enters the box body from the opening, and the control box and the battery box are detachably connected. A guiderail is arranged on the bottom surface of the battery box and extends towards the opening, a guide channel matched with the guiderail is formed in the side surface, towards the bottom surface, of the pallet, the guiderail enters from one end of the guide channel, the pallet slides along the guiderail and drives the battery to enter the box body. According to the battery pile mounting structure, the battery pile assembly can slide inside the battery box from the opening of the battery box. Then, the control box is arranged in the opening, so that the battery pile is contained in the battery box so as to position the battery pile assembly. The battery pile assembly is prevented from being manually hoisted into the battery box from the upside of the battery box, and the operation is convenient, and the accurate positioning of the battery pile assembly in the battery box can be guaranteed.

The invention discloses a spliced light steel wall board, comprising a wall board body, wherein the wall board body is formed by splicing one or two modular wall segments, and the wall segments of twoadjacent segments are fixedly spliced and connected by a tenon; The invention relates to a light steel building composed of spliced light steel wall panels, which comprises at least two standard wallpanels and at least one door opening wall panel. At least two standard wall panel and at least one door opening wall panel are connecte into a light steel house by one or two or three tenons according to that structure of the light steel house, wherein one tenon is an L-shaped tenon, two tenons are an L-shaped tenon and a T-shaped tenon, and three tenons are an L-shaped tenon, a T-shaped tenon and a cross-shaped tenon. The invention has the advantages of simple construction process and high construction speed, and can be used for manufacturing wall segments according to requirements. The wallsegments are quickly assembled by tenons to form a wall board, and the wall boards are quickly assembled by tenons to form an integral house, thus shortening the construction period and avoiding thetransportation and hoisting of a large light steel wall body.

The invention relates to a construction method of a chemical ship pipe collecting area unit, which comprises two layers of brackets, two layers of pipelines and a platform, wherein a bottom layer of brackets, a bottom layer of pipelines, an upper layer of brackets, an upper layer of pipelines and the platform are respectively arranged from bottom to top, the construction method comprises the following steps of: constructing a pipe collecting area unit on a special bracket; arranging a column type jig which simulates the height of T rows of main decks of the pipe collecting area on the specialbracket as a bracket for supporting the pipe collecting area unit; and placing the special bracket on a unit construction site, after the construction of the pipe collecting area unit is finished, transporting the special bracket to a dock or a berth area through a flat car under the condition of not taking off the tire, so that the pipe collecting area unit is directly hoisted on the ship. According to the method, the hoisting of the whole unit is avoided, the limitation of hoisting capacity is avoided, the integrity of the unit is greatly improved while the whole weight of the unit is improved, and the deformation of the unit from the hoisting belt is effectively avoided.

The invention discloses a portable turnover device for a transfer case assembling. The portable turnover device comprises a turnover table assembly, a roller bed delivery assembly, and a fixing assembly, wherein the turnover table assembly comprises supporting pieces and connecting pieces, and the connecting pieces are connected with the supporting pieces and a fixing support. The roller bed delivery assembly comprises rolling pieces and hinging pieces, the hinging pieces are divided into first hinging pieces and second hinging pieces, and the first hinging pieces are arranged on two sides of each rolling piece correspondingly; and the fixing assembly is connected with the turnover table assembly and the roller bed delivery assembly. The portable turnover device for the transfer case assembling has the beneficial effects that by additionally arranging a limiting shaft, no slippage happening in the transfer case turnover process is guaranteed, driving pieces and connecting rod pieces cooperate together to provide power for turnover, the whole turnover process is compact and stable, and reliable guarantees are provided for the transfer case to change stations and conduct a next assembly process; and meanwhile, the complicated lifting and leveling operation are avoided, labor burdens of workers are reduced, the assembly efficiency of the transfer case is improved, and the advantage of the mechanical assembly method is reflected.

The invention discloses a movable type connecting device for a reverse construction method steel tube column and a reinforcement cage, belongs to the an engineering device of the underground space development reverse construction method foundation pit engineering field, and particularly relates to a movable type connecting device for the steel tube (structure) column and the reinforcement cage. The movable type connecting structure is characterized in that a reinforcement sleeve is fixedly arranged on the upper part of the reinforcement cage, wherein the upper port of the reinforcement sleeveis fixedly equipped with a protecting aligning plate with a middle hole; the steel tube column passes through the middle hole of the protecting aligning plate; a pair of upper and lower spaced limiting plates is fixedly arranged on the outer wall of the upper part of the steel tube column; the protecting aligning plate is positioned between upper and lower limiting plates, and the dimension of themiddle hole of the protecting aligning plate is smaller than diameters of the upper and lower limiting plates; and the reinforcement cage and the reinforcement sleeve are positioned in an all-steel protective barrel in a construction state. The movable type connecting device is simple in structure, is high in operation precision, is convenient to operate, and can realize construction in a pile hole with or/without underground water, so that connecting, hoisting and mounting of the steel tube (structure) column and the reinforcement cage can be solved, and regulating and positioning for perpendicularity in a steel tube (structure) column core mounting process are also convenient.

The invention discloses a lifting method for installing large-scale power equipment, and the lifting method comprises the following steps: S1, a first motor and a second hydraulic device work to suspend a suspension arm; S2, a first hook at the end of a first wire rope is used to hang large electrical equipment accessory, a second hook at the end of a second wire rope is used to hang large electrical equipment accessories; S3, a third hydraulic device can be used to lift a support plate structure, and a worker can stand on a support plate to perform height lifting work; and S4, a frame structure arranged at the top of the support plate is used to control left-right adjustment of a second traction mechanism by a servo drive device, and the second traction mechanism is used for lifting a tool and a component for lifting movement. The lifting method improves the installation efficiency, avoids multiple times of movement and suspending and lifting of the device, and a simple lifting elevator structure is formed. The worker can stand on the support plate for lifting, the method is convenient for installation and construction, reduces the carrying pressure of the worker working at height, and improves the safety performance.

The invention discloses a miniature pipe jacking construction method for ecological comprehensive pipe gallery engineering, which comprises the following construction steps: step 1, mounting and debugging a miniature pipe jacking machine, step 2, orienting a laser theodolite, step 3, jacking a pilot pipe, step 4, jacking an unearthed outer pipe, step 5, jacking a spiral cutter head, step 6, jacking a reinforced concrete pipe, and step 7, dismounting equipment. In the pipe jacking construction process, each section of pilot pipe and each section of unearthed outer pipe are sequentially dismantled in the receiving well, and the spiral cutter head, the pipe jacking machine table and the machine table base are dismantled in the working well. The miniature pipe jacking construction method for the ecological comprehensive pipe gallery project is easy to operate, high in pipe jacking efficiency, quite convenient and rapid to install and detach, good in pipe jacking accuracy and safety and suitable for rapid construction of urban ecological comprehensive pipe galleries.

The invention discloses an abraded bearing position repairing device, relates to the bearing abrasion repairing technology field, and especially relates to the abraded bearing position repairing device. The device comprises a bearing installation position, an upper abrasion bearing position, a lower abrasion bearing position, an upper injection hole, a lower injection hole, a grinding tool shell,a repairing layer for an abrasion position, a bolt hole, a positioning hole and a filling portion. The bearing installation position is located in the grinding tool shell, the upper abrasion bearing position is arranged on an upper side of the bearing installation position, the lower abrasion bearing position is arranged on the lower side of the bearing installation position, and the repairing layer for the abrasion position is arranged above the upper abrasion bearing position. After the technical scheme is adopted, the device has advantages that equipment does not need to be disassembled, repair welding is not needed, and disassembling, hoisting and transportation of the equipment can be avoided; machining cost is reduced, and time is shortened; a grinding tool is adopted for forming, heat is not generated, there is no deformation, precision is high, and abrasion resistance is good; and a new shaft does not need to be replaced and cost is low.

The invention belongs to the technical field of derusting machines, and particularly relates to a swinging structure and a swinging method of a steel pipe inner wall derusting machine. The swinging structure comprises a swinging motor, a swinging disc, a swinging disc sliding block, a swinging rod and a swinging rod groove, the swinging motor is fixedly arranged in a frame body cylinder, and a rotating shaft of the swinging motor is fixedly connected with the swinging disc; and the swinging disc sliding block is eccentrically arranged on the swinging disc, the swinging disc sliding block is arranged in the middle of the swinging rod in a sliding manner, the upper end of the swinging rod is rotationally arranged at the axis of the frame body cylinder, the lower end of the swinging rod penetrates through the swinging rod groove and then is connected with a front baffle, and the swinging rod groove is formed in the frame body cylinder. The swinging structure serves as a key part and is applied to the steel pipe inner wall derusting machine.

The invention provides arc-shaped formwork and moulding bed rapid machining and assembling equipment, and belongs to the technical field of vertical shaft one-time assembling and manufacturing. The equipment comprises a base and a moulding bed jacking and pressing mechanism arranged on the base. The moulding bed jacking and pressing mechanism comprises shaping plates with the shapes of the upper surfaces matched with the shape of the bottom face of a moulding bed and cambered surface jacking mechanisms arranged above the shaping plates. The cambered surface jacking mechanism comprise supports,cross beams, jacking lead screws and pressing blocks. The supports are oppositely arranged at the two ends of the shaping plates, the top ends of the supports are higher than the upper end faces of the shaping plates, the cross beams stretch across the shaping plates to be fixed to the supports at the two ends of the shaping plates, threaded holes are formed in the cross beams, the jacking lead screws penetrate through the threaded holes of the cross beams, and the lower ends of the jacking lead screws are connected with the pressing blocks. Steel plates can be pressed into the designated radian through the moulding bed jacking and pressing mechanism, a moulding bed bottom plate and the shaping plates are better attached, moulding bed side plates can be rapidly positioned through mouldingbed side plate positioning mechanisms, the positioning time of the side plates and limiting plates is shortened, the labor intensity of workers is reduced, and the efficiency of manufacturing the moulding bed with the arc-shaped bottom face is greatly improved.

The invention provides a large standing tower inverted installation device and inverted construction method. According to the inverted installation device, a side column in the inverted installation device is arranged on a base, lifting equipment is arranged on the side column and used for lifting a tower body wall plate, and a limiting plate is arranged on the base and located on the inner side of the tower body wall plate to be installed in use. According to the method, after the layer of tower body wall plate is welded on the inverted installation device, the tower body wall plate is liftedby the lifting equipment, so that the next layer of tower body wall plate is conveniently installed below the lifted tower body wall plate, a large crane is not required to be used for installing a large standing tower, the space is saved, welding operation of the tower body wall plates is completed on the inverted installation device, namely the welding operation is completed on a flat ground, high-altitude operation is avoided, the personal safety of operators is guaranteed, compared with the high-altitude operation, the flat ground operation is higher in efficiency, an installation and construction period of the large standing tower is shortened, and the installation efficiency of the large standing tower is improved.

The invention relates to the technical field of cables, in particular to a movable lever type cable shaft support construction method which comprises the steps that s1, a constructor uses a shaft rod to penetrate through a cable shaft and lift up the shaft rod, and a central control unit adjusts the height difference between the shaft rod and a supporting end according to the diameter of the cable shaft so that the cable shaft can be correctly placed; the central control unit judges whether secondary improvement is carried out on the support or not according to the maximum value and the minimum value of the height between the shaft rod and the main supporting rod; s2, the central control unit adjusts the rear end supporting rod according to the weight of the cable shaft and judges the deformation condition of the rear end supporting rod, when the actual weight is larger than the preset weight, the central control unit judges that the damage risk exists and detects the deformation condition, the front end supporting rod is further adjusted according to the diameter of the cable shaft, the rear end supporting rod is pressed downwards, the front end supporting rod is pulled out, and a positioning pin is inserted; and s3, the cable shaft is lifted, a constructor checks the overall stress condition, and if no abnormity exists, the cable shaft is conveyed to a designated position, and the cable is released. The working efficiency is obviously improved; and the construction cost is reduced.