179results about How to "Lower lifting height" patented technology

The invention relates to a construction method of a flexible arch bridge with rigid beams. Steel truss beams, a steel box arch and flexible hanging rods are divided into single members in a factory and manufactured in a segmented mode; by the adoption of the symmetrical cantilever erection method, installation of the rigid steel truss main beam is completed firstly; then, an arch rib is installed, a crane travels on an upper bridge deck, the arch rib is divided into two half arches, welding forming is conducted on the two half arches on the upper bridge deck, the arch rib is vertically rotated in place through auxiliary facilities such as vertical rotating hinges, temporary sling towers and temporary inhaul cables between the arch rib and the steel truss beams, and middle span closing of the arch rib is achieved. After installation of the steel truss beams and the arch rib is completed, flexible slings are installed on the upper bridge deck and tensioned, and installation of the main structure is completed. By the adoption of the construction method that the steel truss beams are installed first and then the arch rib is installed, construction difficulty of the arch rib is reduced, the hoisting height of the crane is reduced, the construction period is greatly shortened, construction costs are lowered, economic benefits are increased, structural integrality and stability of the large-span arch bridge are enhanced in the construction process, and construction risk is reduced.

Disclosed is a novel rubber-tyred mobile ship-loader, relating to a device for loading ships at docks. The left end of a walking mechanism (1) of the ship-loader is connected to the front end of a belt conveyer (2), and the right end of the walking mechanism (1) is connected to a middle part of the belt conveyer (2). A feeding device (4) is arranged above the front end of the belt conveyer (2), and a discharging cylinder system (5) is arranged on the tail end of the belt conveyer (2). A hydraulic control/hydraulic station (6) and an electrical device (7) are arranged on the walking mechanism (1). The novel rubber-tyred mobile ship-loader of the invention can increase the dock utilization rate and improve the average loading speed significantly. An electricity distribution system of the ship-loader adopts a dual-mode that one is adopting a mobile power station and the other is adopting a cable reel to receive shore power, which enables the whole system to be completely independent.

The invention provides a duct piece conveying device of a shield tunneling machine. The duct piece conveying device comprises a conveying beam, a transmission mechanism, a conveying trolley and a duct piece lifting device, wherein the conveying beam consists of a plurality of beam body sections which are sequentially hinged with one another; the transmission mechanism is mounted on the conveying beam and can drive the conveying trolley to travel along the conveying beam; and the duct piece lifting device is connected with the conveying trolley so as to realize the lifting and laying of duct pieces. According to the technical scheme provided by the invention, the steel wire rope trolley is driven to travel along the conveying beam through a hydraulic motor, so that the conveying efficiency is high, and the manual operating strength is low; the duct piece conveying device of the shield tunneling machine has the advantages of compactness, more optimized and reasonable structure, low cost and high reliability; and the lifting and laying of the duct pieces are realized through a steel wire rope and a pulley block by an oil cylinder, the lifting height is low, and the occupied tunnel space is less. The invention further provides the shield tunneling machine.

The invention discloses a mechanical stretching device and a seat unit, comprising a fixed bottom rod, a front support rod and a rear support rod rotating in a vertical plane, a cushion board and a backrest arranged on top of the front and rear support rods and connected a board, an ottoman couch, and an ottoman assembly for extending and retracting the ottoman couch; the bottom end of the front support bar is hinged to the front end of the bottom bar, and the bottom end of the rear support bar is hinged to the rear of the bottom bar, The top of the front support rod is hinged with the footrest assembly, and the upper part of the rear support rod is connected to the rear of the cushion board through the intersecting first connecting rod and the second connecting rod; Seat unit, the overall structure of the present invention is simple, two intersecting first connecting rods and second connecting rods are arranged between the cushion board and the rear support rod, the overall operation is stable, and the seat cushion can be rotated during the reclining process of the backrest board. It works by turning a small angle with the backrest, and at the same time can reduce the lifting height of the cushion board, improving the sitting comfort.

A reactor of constant pressure and normal temperature as well as shell type consists of reactor container; in-pile component including bottom in-pile component with hanged cradle and plate set as well as top in-pile component with top support, guide cylinder of control rod and support plate of guide cylinder; fuel component and driving mechanism of control rod. It is featured as hanging reactor core at support stage in reactor container by utilizing middle flange of hanged cradle and using said flange to divide coolant in and out openings to be top and bottom layers for forming coolant channel passing through reactor core from bottom to top.

The invention relates to a truck with a movable bearing surface, which can self-load and self-unload by relying on self outfit when transporting large objects. The truck mainly consists of a speed and direction change driving axle for a separated and vertical swing arm suspension, a movable bearing surface of a carriage and a gantry lifting device. The swing arm suspension is arranged at the ends of the two beam axes in the back of the truck frame respectively, the front beam and the back beam fix a left longitudinal beam and a right longitudinal beam together, every swing arm is provided with a wheel, a supporting spring and a vibration absorber; the movable bearing surface of the carriage comprises an upper layer and a lower layer, the upper layer is divided into a left bearing board and a right bearing board of the upper carriage, the two boards are arranged outside the two longitudinal beams and the position is higher than the outer diameter of the wheel, the lower layer is divided into a front bearing board and a back bearing board of the lower carriage, the two boards are arranged inside the two longitudinal beams and the position height can be lower than the radius of the wheel, wherein, the back bearing board must be movable; the gantry lifting device comprises a portal frame that is arranged above the carriage, a longitudinal beam at the top of the portal frame and a hanging hoist that is arranged on the longitudinal beams and can move along the longitudinal beams.

The invention relates to a double-side container dumper, and the dumper comprises a trailer, a crane and a moveable cylinder, wherein the crane is respectively mounted on front and rear ends of the trailer; both ends of the moveable cylinder are respectively hinged to the lower portions of front and rear cranes while the center of the cylinder is hinged to the trailer; the crane is composed of an intermediate frame, a hoisting mechanism, a travelling mechanism, two sets of same swinging arms and swinging legs, a linkage mechanism, a swinging arm cylinder and a swinging leg cylinder; the hoisting mechanism and the travelling mechanism are mounted on the intermediate frame through a traveling bracket; one end of the swinging arm is hinged with the intermediate frame, the other end is hinged with the swinging leg and the center is connected with the linkage mechanism; one end of the swinging arm cylinder is hinged with the intermediate frame while the other end is hinged with the linkage mechanism, in order to unfold the swinging arms and the swinging legs by driving. Through the double-side container dumper, the '20' or '40' container and other vehicles can realize automatic unloading and loading, at the same time, the container also can realize two-layer stacking.

The invention provides a method and a device for operating a composite mixing plant which is low in cost and has the advantages of a first-order mixing plant and a second-order mixing plant. The method comprises the following steps of: putting aggregate into a mixing tank; conveying the aggregate to a specified position by using a transmission device along the mixing tank, and putting the aggregate in an electronic scale; and metering the aggregate by using the electronic scale and putting the aggregate in a mixer. The invention has the advantages that: a feeding funnel and the mixing tank are integrated, opening and closing of the bottom of the mixing tank are controlled through the transmission device, the device has a simple structure, the equipment occupies small area and is low in construction cost, and construction cost of civil engineering is low; meanwhile, because an intermediate funnel is canceled, compared with that of the first-order and second-order mixing plants, lifting height of the aggregate is reduced, the energy consumption in operation is low. The actual production efficiency is the same as that of the first-order mixing plant, the aggregate can be repeatedly added, and the mixing precision is high.

The invention relates to a direct-push unloading type bucket of a battery forklift truck, the main structure consists of a beam, a coal pushing board, a coal pushing device, coal pushing oil cylinders, an oil cylinder seat, a shovel board, a front shovel board, a hinged disc, a hinged seat and a stop block and adopts the design of combining shoveling, transporting and unloading, wherein, the frontshovel board is arranged at the front part of the shovel board for completing shoveling and clearing, the coal pushing board, the coal pushing device and three telescopic coal pushing oil cylinders are arranged for completing the direct-push unloading, the forklift truck can complete the transportation and the unloading of materials without the need of being excessively elevated after shoveling the float coal materials, thereby not only saving lifting power energy, but also being safe, stable and reliable and being applicable to underground small space. The bucket has the advantages of advanced and reasonable design, compact structure, and convenient installation and use, thereby being the very ideal direct-push unloading type bucket of the battery forklift truck, and the bucket can be also used on other similar engineering vehicles.

The invention provides a wave gliding device easy to recycle and a recycling method for the wave gliding device. The wave gliding device easy to recycle comprises a floating body and a submerged body. A computer control system and a wireless antenna are arranged on the floating body. The wireless antenna communicates with a radio station on a mother ship. The submerged body is provided with a submerged body steering engine and a rudderstock. An umbilical belt is arranged between the floating body and the submerged body. A lifting hook and lifting belt releasing device is further installed on a rigid support of the submerged body. A lifting point is arranged on the hook and lifting belt releasing device and connected with a lifting belt. A lifting hook is arranged at the end of the lifting belt. The rudderstock is connected with a flexible line. The end of the flexible line is fixedly connected with a locking pin of the lifting hook and lifting belt releasing device. The wave gliding device is simple in structure and easy to achieve, the state of the lifting hook and lifting belt releasing device is controlled through the arranged locking pin, the lifting belt and the lifting hook are released reliably and simply, and after the lifting belt and the lifting hook float out of the water surface, recycling work can be conducted.

The invention discloses an automatic drilling device of a short material sawing and drilling all-in-one machine. The automatic drilling device comprises a sawing, discharging and conveying device, a transverse material turning and temporary storage device, a transverse stepping feeding device, a drilling device and a drilling discharging device, wherein the sawing, discharging and conveying device is used for longitudinally conveying sawn bars; the transverse material turning and temporary storage device is used for transversely turning and conveying the longitudinally-placed bars to a temporary storage material frame; the transverse stepping feeding device is used for feeding the bars on a material taking station to a drilling supporting station in a stepping mode; the drilling device comprises a drilling machine base and a drilling supporting device, the drilling supporting device is used for supporting the bars conveyed by the transverse stepping mechanism, and a drill bit component and a drilling clamping device are longitudinally arranged on the drilling machine base in a sliding mode; and the drilling discharging device is used for discharging the bars on the drilling supporting device. According to the automatic drilling device, the bars can be automatically conveyed to the drilling device one by one to be drilled after the bars are sawn, so that the production efficiency is improved, and meanwhile, the occupied area of the whole equipment is smaller.

The invention relates to the technical field of beam replacement equipment of a double-T beam bridge and provides a beam replacement construction system of the double-T beam bridge. The beam replacement construction system comprises a beam replacement machine arranged at the position of beam replacement, the beam replacement machine comprises a main beam, two beam hanging carts capable of moving along the lengthwise direction of the main beam are arranged on the main beam, the main beam is erected on the bridge floor through a front guide pillar and a rear guide pillar, both the front guide pillar and the rear guide pillar are of telescopic structures, the beam replacement process is unaffected by natural conditions such as wind and cannot cause deviation to a fall beam, and beam replacement efficiency is improved; one set of special beam conveying trains, beam conveying carts and inverted gantries which are used for conveying an old beam and docking a new beam are respectively arranged on two sides of the beam replacement machine. By the arrangement, lifting height of the equipment can be effectively reduced during construction, team replacement of T-shaped beams is smoothly completed under the working conditions of construction limit requirements, and the fact that beam replacement construction of the full-span simply-supported T-shaped beams in a 'skylight point' is completed safely and efficiently on the premise of not causing any unnecessary impacts on original line equipment can be guaranteed.

The invention relates to technical field of double-T-shaped beam bridge beam-erecting equipment, and provides a bridge erecting machine of a double-T-shaped beam bridge. The bridge erecting machine comprises a main beam, two beam-hoisting trolleys which can move in the length direction of the main beam are arranged on the main beam, and the rear portion of the main beam is erected on a bridge floor through a telescopic rear guiding pillar; a telescopic front guiding pillar is arranged at the front portion of the main beam, the front guiding pillar is erected on a pier at the position with a beam to be erected through a lengthening section at the bottom, and supporting legs which can move in the length direction of the main beam are arranged at the front portion of the main beam; and the beam-hoisting trolleys comprises moving trolley bodies and horizontally-moved transverse crossing beams. According to the bridge erecting machine of the double-T-shaped beam bridge, overall hole passingof the equipment can be completed only through mutual cooperation of the three supporting legs, operating is simple, steps are definite, the hole passing time of the equipment is greatly reduced, andthe hole passing efficiency is improved; and in addition, through the lifting front guiding pillar and the rear guiding pillar, overall lifting of the equipment can be achieved, so that the beam-changing process is not affected by natural conditions such as wind force, error does not occur during beam falling, and the beam changing efficiency is improved.

The invention discloses an installation method for a full-rotation steering oar. The method includes the following steps that firstly, before installation, a split type full-rotation steering oar is produced, wherein the split type full-rotation steering oar comprises an upper half full-rotation steering oar section and a lower half full-rotation steering oar section; and secondly, in the installation stage, the upper half full-rotation steering oar section is lifted to a hull base to be fastened from the interior of an auxiliary hole above a stern deck, and the lower half full-rotation steering oar section is jacked from the bottom of a stern to be connected with and fastened to the upper half full-rotation steering oar section. The method solves the problems that the requirement for the equipment arrival receiving period is high, the operation safety coefficient is low, and the installation manufacturability is poor.

The invention discloses a swinging arm type underslung crane. The swinging arm type underslung crane comprises a bearing beam, a sliding track, a swinging arm, a connecting wheel, a rotating shaft anda balance beam, wherein a main sliding block in which a pulley is arranged is mounted below the sliding track; the pulley is mounted on the sliding track; a motor is arranged at one side of the mainsliding block which is mounted on the bearing beam; a secondary sliding block is mounted at the bottom part of the bearing beam; a rotating shaft is mounted at the bottom part of the secondary slidingblock; a fixing support is arranged at the bottom end of the rotating shaft, and the rotating shaft is connected to the swinging arm through the fixing support; a balancing weight is arranged at oneend of the swinging arm, and a winding drum is mounted at the other end of the swinging arm. The swinging arm type underslung crane has the beneficial effects that the swinging arm and the rotating shaft are designed; the swinging arm can rotate to change the direction during hoisting in order to take objects out of rack the sliding track, thus heavy objects in a special area can be carried out; the swinging arm type underslung crane is uniform to stress, convenient to maintain, and wide in applicable scope.

The invention discloses a flexing frame applied to a seat unit and the seat unit, and belongs to the technical field of furniture. The flexing frame comprises a fixed bottom bar, a front supporting bar, a back supporting bar, a cushion plate, a backrest plate, at least one foot stool couch and a foot stool assembly, wherein the front supporting bar and the back supporting bar rotate in a vertical plane, the cushion plate and the backrest plate are arranged at the top of the front supporting bar and the top of the back supporting bar and are connected, and the foot stool assembly is used for stretching and retracting the at least one foot stool couch; the bottom end of the front supporting bar is hinged at the front end of the bottom bar, the bottom end of the back supporting bar is hinged at the back part of the bottom bar, the top end of the front supporting bar is hinged with the foot stool assembly, the top end of the back supporting bar is connected with the back end of the cushion plate through a first connecting rod, and a first transmission part and a second transmission part which are mutually matched are respectively arranged at the back end of the cushion plate and the top end of the back supporting bar. The flexing frame applied to the seat unit and the seat unit, which are provided by the invention, have the advantages that the whole structure is simple, components are a few, the mounting efficiency is high, and the production costs are effectively reduced; mutually matched driving tooth and driven tooth are arranged between the cushion plate and the back supporting bar, so that the whole device runs smoothly and stably, and the use stability is great.

The invention provides a thermal hydrolysis pretreatment process device for sludge with high solid content based on anaerobic digestion. The device comprises a preheating kettle, a reaction kettle and a pressure-relief kettle which are each provided with a stirring unit, and a steam supply system used for supplying steam. The device is characterized in that steam inlets (8, 15) of the preheating kettle and the reaction kettle are arranged close to the lower of side walls, wherein steam distributors in the kettles are annular wall-adhered tubes with holes which are provided with a high-temperature resistant filtering layer for preventing blockage; the pressure-relief kettle is a flash evaporation kettle with a tank body provided with a water-cooling interlayer, wherein opening time and flow rate of water in the water-cooling interlayer are controlled through a temperature-detection and flow-control interlocking unit, and a reflux-steam pipeline of the pressure-relief kettle and a straight-through pipeline of the steam supply system are in parallel connection and maintains a communication state; and stirring blades of the stirring units in the preheating kettle and the reaction kettle are of a screw coiled shape consistent with rotating direction. The thermal hydrolysis pretreatment process device provided by the invention can improve gas productivity and treatment capacity of anaerobic digestion for the sludge to the greatest extent, and reduces construction cost and operation cost; meanwhile, solid content of treatable sludge is high (12% to 15%), and content range of organic matters is broad (60% to 35%).

The invention relates to the technical field of T-shaped beam bridge beam-erecting methods, and provides a bridging method for a T-shaped beam bridge. The bridging method comprises the steps that during hole passing, a front guiding pillar and a rear guiding pillar of a bridge erecting machine shrink, and two beam-hoisting trolleys on a main beam are supported on an erected beam bridge deck; the main beam is driven to move forward, so that the front guiding pillar and the rear guiding pillar are moved to the position above two piers at the beam-erecting position correspondingly, and the frontguiding pillar and the rear guiding pillar are stretched downward and supported on the two piers at the beam-erecting position; and during beam erecting, the two beam-hoisting trolleys are matched with a beam transporting trolley for conducting beam feeding, and after a new beam to be erected is transported to the position above the beam-erecting position, the new beam to be erected is erected onthe piers. According to the bridging method for the T-shaped beam bridge, overall hole passing of equipment can be completed only through mutual cooperation of three supporting legs, operation is simple, the hole passing time of the equipment is greatly reduced; and in addition, through the lifting front guiding pillar and the rear guiding pillar, overall lifting of the equipment can be achieved,so that the beam-changing process is not affected by natural conditions such as wind force, and errors do not occur during beam falling.