607 results about "Concrete pump" patented technology

The invention discloses a pouring pile pouring device for construction and a using method thereof. The pouring pile pouring device for construction comprises a guide pipe, a pouring pile and a pouring pile, the concrete pumping unit comprises a variable frequency motor, a two-way hydraulic pump and a conveying pipeline wrapped with a heat preservation layer, and the conveying pipeline is in sealed connection with the top of the guide pipe through a flange plate; the pile frame supporting unit comprises a supporting frame with a lifting mechanism and a guide pipe fixing clamp integrated with a tilt angle sensor, and the fixing clamp is hinged to the supporting frame and dynamically adjusts the perpendicularity of a guide pipe through a servo motor; and the intelligent control unit comprises a distributed pressure sensor group, a multi-mode burial depth detection module and a central controller, a concrete rheological model is arranged in the intelligent control unit, and the rotating speed of the variable frequency motor and the lifting speed of the guide pipe are dynamically adjusted according to sensor data. The construction efficiency, the pile foundation quality and the complex geology adaptability are effectively improved, meanwhile, the construction cost and risks are reduced, and wide application prospects and economic benefits are achieved.

The utility model provides a concrete pouring and distributing device for bridge construction, and relates to the technical field of bridge construction equipment.The concrete pouring and distributing device comprises a supporting frame used for being erected on a bridge deck system pouring formwork, an inclined discharging groove is slidably connected to the supporting frame, and a driving assembly used for driving the inclined discharging groove to move on the supporting frame in the transverse bridge direction is arranged on the supporting frame; the bottom of the inclined discharging groove is evenly provided with a plurality of discharging openings, the discharging openings are connected with a material distribution hose, the lower end of the material distribution hose is provided with a moving trolley, the bottom of the inclined discharging groove is fixedly provided with a guide frame, and the moving trolley is connected with the guide frame in a sliding mode. Concrete falls to different positions of a bridge floor along a plurality of discharging ports of the inclined discharging groove and the material distribution hose, multiple vehicle-mounted concrete pumps do not need to work at the same time, the pumping cost is effectively reduced, the driving assembly drives the inclined discharging groove to move on the supporting frame in the transverse bridge direction, and workers pull the lower end of the material distribution hose to move in the longitudinal bridge direction through the moving trolley. Labor is saved, and the labor intensity of workers is reduced.

The invention provides synchronous inverted arch pouring equipment, a construction method and a tunneling machine, and belongs to the technical field of tunneling. The synchronous inverted arch pouring equipment comprises a rear matching trailer set, a concrete pumping pipe used for pumping inverted arch concrete is arranged on the rear matching trailer set, the front end of the concrete pumping pipe is connected with a grouting structure, and a driving mechanism used for driving the grouting structure to move front and back to conduct inverted arch concrete pouring is arranged on the rear matching trailer set. The concrete pumping pipe comprises a stretching recovery pipe capable of stretching forwards and recovering backwards so as to accommodate the back-and-forth action of the grouting structure. During construction, the grouting structure is not affected by forward tunneling of the heading machine within a certain range, namely, after the heading machine conducts forward tunneling, the grouting structure can move backwards under the action of the driving mechanism, so that concrete in the area is fully poured, and therefore the pouring range capable of being covered by the grouting structure can be longer than that of the technology; and therefore, frequent mounting and dismounting of the formwork can be reduced, and the construction efficiency is improved.

The invention discloses ultra-deep foundation pit concrete pouring equipment and a construction method thereof.The ultra-deep foundation pit concrete pouring equipment comprises a transfer hopper installed on a ring beam on the lower portion of an enclosure structure of an ultra-deep foundation pit, and the transfer hopper is connected to a pump pipe of a concrete automobile pump; one end of the material conveying hose is connected to the discharge hole of the transfer hopper; a bearing plate is formed on one side portion of a base on the enclosure structure, one end of the cantilever frame is rotatably connected to one side portion of the base, the bearing plate is supported at one end of the cantilever frame, and a locking piece is installed at one end of the cantilever frame; the driving structure comprises a plurality of electric winding drums and slings which are installed on the ring beam, the electric winding drums are connected to one ends of the slings respectively, the middles of the slings are wound around the other ends of the cantilever frames, and the other ends of the slings are connected to the middle and the other end of the conveying hose respectively. The problems that during deep foundation pit concrete pouring construction, when a concrete pump truck is adopted for pouring, the free falling height of concrete is large, and concrete segregation is likely to happen are solved.

The invention discloses a pumping concrete pouring supporting facility for an ultra-deep diaphragm wall and a technological method.The pumping concrete pouring supporting facility comprises a concrete pump truck, a pouring pipe fitting, a flow-limiting pouring guide pipe and a slurry pipe, the concrete pump truck is located on the side edge of a slotted hole, and a discharging port of the concrete pump truck is connected with the top end of the pouring pipe fitting; the bottom ends of the pouring pipe fitting and the slurry pipe extend into the slotted hole, the bottom of the slurry pipe is higher than the upper surface of the concrete, and the slurry pipe is connected with a slurry return assembly. The device has the beneficial effects that the structure is simple, the design is reasonable, the process method is simple, and the adverse effects of coarse and fine aggregate separation, mixture segregation and the like of concrete can be reduced by reducing the falling speed during concrete pouring by matching pumped concrete with the flow-limiting pouring guide pipe; accumulation of flocculate is reduced through active slurry returning, so that slurry mixing of concrete, slurry and flocculate is reduced, and the quality of the formed diaphragm wall is improved.

Proposed is a concrete pump system comprising a concrete pump (14, 51) and a master control module (45, 54), wherein the concrete pump (14, 51) comprises a control unit (61), a boom arm (18) and a delivery line (17) extending along the boom arm (18). An outlet opening (63) of the delivery line (17) can be moved over a working region of the concrete pump (14, 51). The position of the concrete pump (14, 51) is defined within a first coordinate system (52, 57). The location of a concreting area (36) is defined within a second coordinate system (53). The master control module (45, 54) is designed to specify a concreting plan to the control unit (61). The concreting plan (64) defines a plurality of partial areas (39) of the concreting area (36). The control unit (61) is designed to control the boom arm (18) on the basis of a referencing between the first coordinate system (52, 57) and the second coordinate system (53) such that liquid concrete emerging from the outlet opening (63) of the delivery line (17) is introduced into a partial area (39) of the concreting area (36), said partial area being specified by the concreting plan (64). The invention also relates to a method for operating a concrete pump system.

The invention relates to the technical field of concrete spreader, and discloses a concrete spreader for engineering construction, which comprises a support frame and a bogie, the inner wall of the bogie is rotatably connected with the top of the support frame, the inner wall of the bogie is fixedly connected with a second conveying pipe, and the side wall of the bogie is provided with a discharge pipe. The first material conveying pipe is connected with a pipeline of a concrete pump truck, then the pump truck is started, concrete is pumped into the first material conveying pipe, the concrete can flow into the second material conveying pipe and the steering pipe till the concrete flows into the flow guide groove, the concrete is divided into two strands through the flow dividing assembly, aggregate in the two strands of concrete collides with each other, and the aggregate in the two strands of concrete collides with each other. Therefore, the flowing speed of the aggregate is slowed down, the follow-up mortar wraps the aggregate, the aggregate and the mortar of the concrete are evenly distributed, the situation of local aggregate concentration is reduced, and the situation that due to the fact that the aggregate is high in descending speed and prone to being accumulated at the bottom, the mortar floats on the upper layer, and the uniformity of concrete distribution is affected is effectively prevented.

The invention provides a mixed modeling method for the pumping and printing process of 3D printing concrete. According to the method, intelligent aggregate is introduced, real-time monitoring and data collection of particle motion behaviors in the 3D concrete pumping and printing process are achieved, and comparative analysis is conducted on collected multi-dimensional dynamic data of particle speed, acceleration and collision frequency and discrete element-computational fluid mechanics (DEM-CFD) coupling simulation results; therefore, efficient inversion and accurate calibration of input parameters of the DEM-CFD coupling simulation model are achieved, and compared with unobservability and uncertainty of the particle flow state in the traditional concrete pumping process, the method can achieve transparency in the particle movement process; the parameter inversion method provided by the invention is based on fitting optimization of actually measured particle motion data and a numerical simulation result, so that manual intervention and experimental overhead are remarkably reduced.

A containerized concrete batch plant is disclosed, comprising a container configured to contain a concrete batch plant to permit the transportation of the concrete batch plant. The concrete batch plant comprising one or more aggregate storage silos to receive a plurality of concrete elements. The one or more aggregate storage silos pour the concrete elements onto a conveyor based on quantity determination by a computer via a deductive scale. The conveyor transfers the concrete elements to a two-shaft mixer. An auger-fed hopper has an auger that is directly exposed to the contents inside the two-shaft mixer and transfers the contents inside the two-shaft mixer into the auger-fed hopper. A concrete pump has access to the auger-fed hopper and pumps the concrete inside the auger-fed hopper into a concrete output hose with a concrete output opening. A knuckle crane and / or hydraulic arms holds supersacks above the aggregate storage silos and the two-shaft mixer.

The invention discloses an intelligent construction equipment control method based on a multi-modal large model, and relates to the technical field of intelligent construction and construction equipment control, and the method comprises the steps: collecting concrete pumping flow, pipeline pressure, construction area point cloud and multi-angle images, obtaining a voice instruction of an operator at the same time, and carrying out the noise suppression and voiceprint recognition; inputting the trained multi-modal large model to carry out cloth coverage precision judgment, calculating a regional granularity factor, comparing the regional granularity factor with a coverage threshold value, and automatically generating a task label or triggering a voice correction strategy; a dynamic feeding stability coefficient is constructed by calculating the standard deviation of flow and pressure data, and intelligent monitoring and regulation of the running state and the construction environment of the material distributing machine are achieved in combination with a load balancing coefficient and a construction risk probability; the system also establishes a full-link tracing mechanism, realizes traceability of operation instructions, personnel identities and equipment states, ensures controllable construction quality and clear responsibility, and realizes task process optimization and continuous improvement.

The invention relates to the technical field of concrete fluidity regulation and control, in particular to a design method for realizing concrete fluidity optimization through viscosity regulation and control, which comprises the following steps: S1, determining the proportion range of each component of the required concrete according to the strength grade; s2, inputting the environment and process parameters into a pre-constructed required viscosity prediction model to obtain the required viscosity of the concrete corresponding to the environment and process parameters; s3, inputting the proportion of the cement, the coarse aggregate, the fine aggregate, the fly ash, the mineral powder, the silica fume, the water and the water reducing agent into a pre-constructed concrete viscosity prediction model to obtain concrete predicted viscosity; s4, comparing the required viscosity with the concrete predicted viscosity; the viscosity of the concrete in different proportions and the required viscosity under the condition that the environment and process parameters are determined can be predicted, and the common problems of overhigh pump pressure, pumping difficulty and pump blockage in elevation concrete pumping engineering are effectively solved.

The prefabricated pier wet joint vacuum pressure injection construction method comprises the steps that S1, when a pier column is prefabricated, a mud jacking pipeline is pre-buried, one end of the mud jacking pipeline extends out of the bottom of the pier column, and the other end of the mud jacking pipeline extends out of the side face of the pier column to serve as a connecting end; s2, a pier column and a wet joint grouting formwork are installed; s3, the connecting end of the mud jacking pipeline is connected with a vacuumizing device; s4, self-compacting concrete is poured into the wet joint grouting formwork till the top of the wet joint grouting formwork is filled with the self-compacting concrete; s5, a vacuumizing device is started until the self-compacting concrete pumped out of the grouting pipeline is uniform and compact, and then the vacuumizing device is stopped; s6, after the wet joint concrete reaches certain strength, the vacuumizing device and the wet joint grouting formwork are disassembled; and S7, after the wet joint concrete reaches the design strength, the part, extending out of the pier column, of the mud jacking pipeline is cut off and beautified. According to the method, the compactness quality of the pier and abutment wet joint is improved, and rapid pouring connection of the prefabricated pier column and the bearing platform wet joint is achieved.

The utility model relates to the technical field of building construction, and discloses a prefabricated laminated slab inter-slab abutted seam structure which comprises prefabricated slabs, the top of the right side of the prefabricated slab on the left side is fixedly connected with a plurality of through reinforcing steel bars, the outer walls of the through reinforcing steel bars are provided with locking reinforcing steel bars, and the right side of the top of each prefabricated slab is fixedly connected with a plurality of hoisting reinforcing steel bars. The top of the hoisting steel bar is fixedly connected with a steel bar sleeve, the inner wall of the steel bar sleeve is fixedly connected with a butt joint steel bar, and the edge of the right side of the top of the prefabricated slab is fixedly connected with a plurality of stabilizing steel bars. According to the utility model, the reinforcing steel bars are hoisted to fix the prefabricated slab, the through reinforcing steel bars are distributed at the abutted seams, the concrete mixed liquid is uniformly poured by using a fine aggregate concrete pump, the reinforcing steel bars and the reinforcing steel bar sleeves are locked to be inserted with the butt-joint reinforcing steel bars, the reinforcing steel bars are stabilized to increase the connection area, and the inclined plane of the prefabricated slab forms an inverted V-shaped space and is provided with tooth grooves, so that the shear strength, integrity and durability of the structure are enhanced; and requirements are met.

The invention discloses a pile foundation concrete accurate pouring control system and method based on multi-source sensing fusion. The pile foundation concrete accurate pouring control system comprises a sensing layer and a control layer, wherein the sensing layer comprises a phased array ultrasonic probe, a binocular vision sensor and a laser ranging array; the modeling layer comprises a three-dimensional hole shape reconstruction module and a BIM digital modeling engine; the data layer comprises a real-time monitoring database and a multi-source data fusion center; the decision-making layer comprises a concrete dynamic evaluation model and a BIM visual platform; the execution layer comprises a self-adaptive PID controller used for adjusting the concrete pumping rate according to the decision instruction, and a three-dimensional visualization terminal used for displaying the BIM model with the tolerance zone in real time. According to the method, a BIM model containing dynamic compensation is constructed through ultrasonic three-dimensional scanning, closed-loop control is achieved by fusing multi-source sensing data, and tolerance band penetration early warning and self-adaptive PID adjustment are combined. The hidden defect discovery rate is improved, and the comprehensive construction efficiency is improved.

The invention relates to a truck-mounted concrete pump (1) with a hydraulically driven concrete pumping device (2), a first hydraulic pump (3), a second hydraulic pump (4), the first and second hydraulic pumps (3, 4) being provided for the joint hydraulic drive of the concrete pumping device (2), and a first drive motor (5) provided for the mechanical drive of the first and second hydraulic pumps (3, 4), which are connected to one another in a drive-force-transmitting manner. The first and second hydraulic pumps (3, 4) are connected in a drive-force-transmitting manner via a coupling (7), which is provided for selectively interrupting the drive-force-transmitting connection between the first hydraulic pump (3) and the second hydraulic pump (4). In a first variant of the invention, the first and second hydraulic pumps (3, 4) form a hydraulic pump train (6), which connects them in a drive-force-transmitting manner.In a second variant, the first and second hydraulic pumps (3, 4) are connected to each other via a transfer case (30) to transmit drive force.

The embodiment of the invention provides a pumping system for a concrete pump truck, a control method and system of the pumping system and a medium. The method comprises the following steps: executing a device; the power device is connected with the execution device, and the power device is configured to drive the execution device to do telescopic motion so as to push concrete to be conveyed to a target position from a hopper; the locking device is arranged between the execution device and the power device, and the locking device is configured to be locked based on locking pressure when the pumping system is shut down or waits for materials so as to block an oil way between the power device and the execution device. According to the scheme, the problems that the main oil cylinder of the pumping system slips and the oil cylinder is driven to move due to zero drift of the closed pump can be effectively prevented.

The invention discloses a digital diaphragm wall closed-loop pouring system and construction method.The digital diaphragm wall closed-loop pouring system comprises a concrete supply device, a central integrated control machine and at least one pouring unit electrically connected with the central integrated control machine, and each pouring unit comprises a pouring mechanism, a slurry pumping mechanism and the central integrated control machine; an active pressure pouring technology is adopted, continuous and controllable extra power is provided for concrete flowing through a pressurizing mechanism such as a concrete pump or an air pressure pressurizing system, and a traditional pouring mode purely depending on concrete gravity is replaced. By means of the basic change, the concrete in the guide pipe can actively overcome larger mud static pressure and pipeline resistance, and therefore the technical problems that due to the fact that the burial depth is too large, the concrete cannot flow out smoothly, the pipe is blocked, and even a pile is broken are thoroughly solved.

The utility model discloses an anti-clogging concrete spraying device, which relates to the field of concrete spraying and comprises a bottom plate, a storage box is arranged on one side of the top end of the bottom plate, a feed opening is arranged on one side of the top end of the storage box, and a stirring mechanism is arranged in the middle of the storage box; a concrete pump is arranged in the middle of the top end of the bottom plate, a lower supporting plate is arranged on the other side of the top end of the bottom plate, an adjusting mechanism is arranged in the lower supporting plate, an upper supporting plate matched with the adjusting mechanism is arranged at the top end of the lower supporting plate, and a swing mechanism is arranged at the top end of the upper supporting plate. A guniting pipe matched with the concrete pump is arranged on one side of the bottom end of the storage box, and the guniting pipe is connected with the bottom end of the swing mechanism. Under the matching action of the stirring mechanism, the concrete pump, the adjusting mechanism and the swinging mechanism, the multi-angle concrete spraying device can complete multi-angle concrete accurate spraying, ensures the accuracy and efficiency of the guniting operation, and also has a cleaning function after the guniting operation is completed.

An infrared vision positioning method for concrete pumping liquid level in tube of steel tubular arch bridge is provided. In this method, the perspective geometry algorithm is used to construct the pose transformation matrix to obtain the relative pose between the camera and the arch bridge steel pipe, the image is transformed into orthography by perspective transformation, and the real coordinates of the liquid level in the infrared image can be directly solved by the scale, so as to realize the accurate positioning of the liquid level; the proposed method is simple in structure and can realize real-time operation, which greatly improves the calculation efficiency of coordinates in infrared images, compared with the conventional knocking method, the advantage is that it does not require staff in an overhead operating, and the feedback of the liquid level position can be faster and more efficient.

The invention discloses a tunnel integrated trolley based on a full-section drilling and blasting method and a construction method thereof. Comprising a single-side double-track chassis, multifunctional supporting legs, a door-shaped frame, a rock drilling bolting and grouting arm module, an explosive charging wet spraying arm module, an undercut danger removing operation arm module, a steel arch mounting system, a concrete pumping system, a hydraulic system, an air compression system, an additive system, a grouting stirring system, a water system, a cable reel, an intelligent electric control system, a spraying and dust reducing system and the like. Compared with traditional large machine matched construction, the tunnel construction method has the advantages that procedures are seamlessly connected, the waiting time of machines or tools is greatly shortened or zero, multi-tool transition scheduling is not needed, the number of professional operators is greatly reduced, tunnel construction efficiency is greatly improved, construction circulation time is shortened, construction cost is reduced, and construction safety is improved.

The invention relates to a truck-mounted concrete pump (1), wherein the truck-mounted concrete pump (1) comprises: a concrete pumping system (2), wherein the concrete pumping system (2) is designed to convey concrete, a hydraulic drive pumping system (3), wherein the hydraulic drive pumping system (3) is designed to drive the concrete pumping system (2) and has a hydraulic pump drive shaft (4), an electric motor (5), wherein the electric motor (5) is designed to drive the hydraulic pump drive shaft (4) of the hydraulic drive pumping system (3) and has an electric motor shaft (6), and a drive motor system (7), wherein the drive motor system (7) is designed to drive the electric motor shaft (6) in order to drive the hydraulic pump drive shaft (4) of the hydraulic drive pumping system (3) by means of the electric motor shaft (6).

The invention relates to a method for driving a truck-mounted concrete pump 100, wherein the truck-mounted concrete pump 100 comprises at least one boom hydraulic pump 122 with limitable drive torque, which is provided for driving a placing boom 110 and / or a support 107 of the truck-mounted concrete pump 100, and at least one concrete pump hydraulic pump 121a, 121b, 123, 124, which is provided for driving a concrete pump 116, 118, 119 of the truck-mounted concrete pump 100, wherein the truck-mounted concrete pump 100 is configured for a first operating state in which the placing boom 110 or the support 107 is in operation and the concrete pump 116, 118, 119 is not in operation, and wherein the truck-mounted concrete pump 100 is configured for a second operating state in which the placing boom 110 or the support 107 is in operation. 107 and the concrete pumps 116, 118, 119 are in operation.The method according to the invention comprises the following steps: - Determining the operating state of the truck-mounted concrete pump 100 and - Limiting the drive torque of the mast-mounted hydraulic pump 122 in the second operating state. The invention also relates to a corresponding drive system for a truck-mounted concrete pump.

The utility model discloses a concrete pump truck feeding adjusting mechanism, which belongs to the technical field of feeding adjusting mechanisms, and comprises a feeding hopper and a transmission mechanism, the front end face of the feeding hopper is rotatably provided with a rotating plate, the top of the feeding hopper is fixedly connected with a lifting plate, and the bottom of the feeding hopper is provided with a discharge port communicated with an inner cavity of the feeding hopper. And an adjusting plate is movably arranged in the discharging opening. Through the structural design of the rotating plate, the discharging port, the adjusting plate and the transmission mechanism, the position of the adjusting plate in the discharging port can be reasonably adjusted, so that the caliber of the discharging port can be adjusted, the purpose of adjusting the discharging amount is achieved, and the problem that discharging is conducted through the discharging port in the bottom of the outer-layer hopper body and the discharging port in the bottom of the inner-layer hopper body is solved. The problems that due to the fact that the diameter of a discharging port is fixed, even though stable discharging can be achieved, the discharging amount cannot be adjusted according to needs, the safety of a concrete pump truck body and the feeding pressure of a pipeline are not protected, and the using effect is poor are solved.

The invention provides a concrete pumping state monitoring device and method based on a sound-sensitive sensor. The concrete pumping state monitoring device and method are used for solving the technical problem that concrete is blocked in the concrete pumping process of existing building construction. The monitoring device comprises a plurality of sound-sensitive sensors, a data acquisition device and a remote control platform, the sound-sensitive sensors are uniformly distributed at a plurality of key positions of the pump pipe, the sound-sensitive sensors are connected with the data acquisition device, and the data acquisition device is connected with the remote control platform. The invention further discloses a concrete pumping state monitoring method based on the sound-sensitive sensor. A plurality of data acquisition terminals are adopted to monitor the whole pump pipe, the pumping state of concrete is recognized, blockage is output according to characteristics, and blockage position information is output. Real-time monitoring and fault diagnosis can be carried out on the concrete pump pipe in the concrete pumping process, and safety and high efficiency of the pump pipe in the using process are guaranteed.

The invention relates to the technical field of coaxiality detection, in particular to a plunger type concrete pump main oil cylinder and concrete cylinder coaxiality detection device and method.The plunger type concrete pump main oil cylinder and concrete cylinder coaxiality detection device comprises a main oil cylinder, a concrete cylinder and a water tank arranged between the main oil cylinder and the concrete cylinder, a connecting rod is arranged in the water tank, and the connecting rod is connected with a cylinder rod in the main oil cylinder and a concrete piston in the concrete cylinder; a length measuring device and a strain force measuring device are arranged on the connecting rod, the length measuring device is used for measuring the length information of the connecting rod extending into the concrete cylinder, and the strain force measuring device is used for measuring the strain force information of the section, which is L away from the stress point of the concrete piston, on the connecting rod; and the coaxiality deviation condition of the concrete piston at the specific position of the concrete cylinder is calculated according to the length information and the strain force information. According to the invention, the coaxiality of the concrete pump finished product can be conveniently detected without disassembling and assembling the assembled parts of the concrete pump.

The present invention provides a pumping hydraulic system and a concrete pumping machine. The pumping hydraulic system includes two pumping cylinders connected in series, a main oil pump, a main reversing valve, and a high-low pressure switching valve. The main oil pump pumps hydraulic oil to the pumping hydraulic system through a pumping oil circuit. The main reversing valve is arranged on the pumping oil circuit and controls the telescopic movement of the pumping cylinders. The high-low pressure switching valve is arranged on the oil supply circuit of the main reversing valve. The valve core of the high-low pressure switching valve can be switched between a first working position and a second working position, so that the hydraulic oil pumped by the main oil pump enters the rod chamber or the rodless chamber of one of the pumping cylinders through the high-low pressure switching valve. In the pumping hydraulic system of the present invention, the high-pressure and low-pressure pumping states of the pumping cylinders can be realized by the cooperation of a high-low pressure switching valve and a main reversing valve, which simplifies the structure and improves the pumping efficiency.

This invention relates to a method for pile formation using a spiral soil displacement drilling casing and subsequent concrete pouring, comprising the following steps: After the spiral soil displacement pile driver is positioned, the first power head is started to rotate and drill downwards to form a hole, and then the second power head is started to drive the casing to rotate and drill downwards to form a hole, until the soil displacement drill bit and the casing of the second power head reach the designed depth and drilling stops; the connection between the second power head and the casing is disconnected, and the concrete pump connected to the first power head is started to pump concrete into the borehole while simultaneously lifting the first and second power heads upwards until the soil displacement drill bit is completely removed from the casing; the reinforcing cage is locked into the positioning component using a locking component, and then lowered along the casing to a predetermined height, while pumping concrete into the casing until the designed pile top elevation is reached; the second power head is reconnected to the casing using the locking component, and the second power head is started to rotate and lift upwards until the casing is completely removed from the soil layer, thus completing pile formation. This application facilitates the rapid and stable lowering of the reinforcing cage.

The invention relates to a series-parallel connection mixed electro-hydraulic mixing arm support system and a concrete pump truck. The arm support system comprises an arm support, a hose assembly, a tail end freedom degree assembly, a multi-freedom-degree mechanical arm and a self-adaption assembly. One end of the hose assembly is connected with a conveying pipeline on the arm support, and the other end is connected with the tail end freedom degree assembly; the self-adaptive assembly is installed on the arm frame, the multi-degree-of-freedom mechanical arm is installed on the self-adaptive assembly, the tail end joint is connected with the tail end degree-of-freedom assembly, and the self-adaptive assembly is used for monitoring the tail end posture of the arm frame and the posture of the multi-degree-of-freedom mechanical arm in real time and adjusting the posture of the multi-degree-of-freedom mechanical arm according to the monitoring result. Compared with the prior art, the mechanical arm is matched with a hydraulic arm frame parallel structure to adjust the position of the discharging port, and the beneficial effects of being high in structural strength, fast in response, high in adjusting precision and the like are achieved.

The invention relates to the related technical field of concrete pouring, in particular to a concrete pouring pump pipe with a buffering mechanism additionally arranged at the tail end and a pouring method thereof.The concrete pouring pump pipe comprises a main pipe, the starting end of the main pipe is connected with a concrete pump, and the buffering mechanism is arranged at the tail end of the main pipe; a flow dividing pipe matched with the main pipe is arranged between the two assembly arms and connected with the tail end of the main pipe through an assembly connecting structure. By arranging the two opposite and inclined discharging pipes, during pouring, after concrete enters the flow dividing pipe from the main pipe, the concrete is divided into two jet flows through a double-channel structure, the two jet flows are ejected out of the two discharging pipes and then are opposite to each other, impact force is relieved, buffering is achieved through soft collision between concrete fluid, and the concrete flow dividing effect is improved. And sharp noise generated when aggregate in concrete collides with the baffle when the buffer baffle is arranged is effectively avoided, and the working environment of nuclear power engineering construction is remarkably improved.

The utility model discloses a concrete pump truck S valve wear -resisting ring replacement subassembly, including the wear -resisting ring of the sleeve setting in the S valve body discharge pipe end part, the surface of S valve body discharge end is provided with the installation slot of wear -resisting ring sleeve setting, the inner chamber of installation slot is provided with annular groove, the surface annular array of wear -resisting ring is provided with four screw nails, the end of screw nail extends to the inner chamber of annular groove, wear -resisting ring and the end of installation slot inner chamber are provided with a plurality of limit pin, the utility model discloses the surface of installation slot is sleeved with wear -resisting ring, then adopts screwdriver to tighten screw nail, makes the steel ball on screw nail and rests in the inner wall of annular groove, wear -resisting ring can also rotate on the surface of installation slot during, after arc groove no.