106 results about "Loading arm" patented technology

The utility model discloses a full-automatic loading arm which comprises a mounting frame, a vertical moving assembly is arranged in the mounting frame, a mounting plate is arranged on the right side of the mounting frame through the vertical moving assembly, a transverse moving assembly is arranged on the right side of the mounting plate, and a mounting frame is arranged on the right side of the mounting plate through the transverse moving assembly. An angle adjusting assembly is arranged on the surface of the mounting frame, and an oil conveying pipe is arranged in the mounting frame through the angle adjusting assembly. The oil conveying pipe can be driven to turn over through the angle adjusting assembly, so that the oil conveying pipe is turned over to be horizontal with the oil filling port, and the oil conveying pipe drives the connecting pipe to rotate relative to the conveying pipe through the connecting assembly. The situation that a large amount of time is consumed due to the fact that most of existing loading arms need to be manually adjusted and guided in the using process is avoided, so that the oil conveying time is shortened, and the full-automatic loading loading arm is more flexible and convenient to use.

A working machine comprising an implement pivotable with respect to a loader arm and an actuator arranged to pivot the implement about a physical angular range of motion; wherein the hydraulic system

The utility model belongs to the field of swan pipe, especially a double -sealed oil depot swan pipe, it includes swan pipe support, the output of swan pipe support is fixedly installed with swan pipe main part, the swan pipe main part is fixedly covered with sealing rubber ring and clamping base, the inside of clamping base is provided with clamping chamber, the outside of clamping base is provided with a plurality of turnover mouth, a plurality of turnover mouth all are linked with same clamping chamber, the outside of swan pipe main part is fixedly covered with sealing rubber block. The utility model discloses a plurality of clamps can be set up to the tank mouth of tank truck is held, prevents the relative displacement of swan pipe and tank truck tank mouth in the oil transfer process because of vibration, shaking and so on, makes swan pipe and tank truck keep solid connection, ensures the loading and unloading oil operation to carry out smoothly, avoids the sealing effect of junction to reduce, causes oil gas leakage, has increased the practicality and security of equipment.

The utility model relates to the field of tar processing, in particular to an oil tank truck smoke overflow collecting device which comprises a tank body, an adding opening is formed in the outer wall of the top end of the tank body, a conical barrel is installed at the position, located at the adding opening, of the outer wall of the top of the tank body, and a sealing assembly is arranged at the position, located at the adding opening, of the inner wall of the top of the tank body. An adding assembly is arranged at the adding opening in the outer wall of the top of the tank body; the adding assembly comprises a crane pipe, a sealing block installed on the outer wall of the crane pipe, an exhaust pipe connected to one end of the outer wall of the top of the sealing block and a valve installed on the outer wall of one end of the exhaust pipe. The sealing assembly comprises springback grooves formed in the inner wall of the top of the tank body at equal intervals and tension springs installed on the inner walls of the top ends of the springback grooves. The plug is pressed downwards after one end of the loading arm is in contact with the plug, the sealing block on the outer wall of the loading arm is attached to the conical barrel after the plug leaves the adding opening, the rubber ring on the inner wall of the conical barrel is in contact with the sealing block to seal the joint, and smoke pollution during loading is avoided.

The application discloses a tank truck operation box control system and method for LNG loading and unloading sites, which comprises a tank body, a liquid phase pipeline with an upper liquid inlet pipeline communicated with the top of the tank body and a lower liquid inlet pipeline communicated with the bottom of the tank body, a gas phase pipeline communicated with the top of the tank body, and a control device. In the process of loading LNG raw materials, the control device first completes the pre-cooling operation of the LNG tank, the loading arm pipeline and the box pipeline realized by the loading arm connected with the tank truck operation box by controlling the passage of the upper liquid inlet pipeline and breaking the circuit of the lower liquid inlet pipeline, and then completes the formal loading operation realized by the loading arm by controlling the passage of the lower liquid inlet pipeline and breaking the circuit of the upper liquid inlet pipeline. When the pressure in the gas phase pipeline is detected to be abnormal, the passage of the gas phase pipeline is controlled. The application realizes the automatic control of the valves in the LNG operation box and the automatic loading and unloading of LNG.

The utility model discloses a suspended truss device for a crane pipe, which belongs to the technical field of loading crane pipes, is suspended on a trestle beam and comprises a cross beam frame and a crane pipe connecting seat, the cross beam frame consists of a Y-axis track frame, an X-axis track frame and a moving trolley, and the crane pipe connecting seat is fixed below the moving trolley. The movable trolley can move relative to the X-axis track frame or the Y-axis track frame so as to drive the crane pipe to move and align; according to the scheme, by designing the suspended truss device, the purpose of automatically moving and aligning a common crane pipe is achieved, that is, the automatic moving crane pipe which is compact in structure, stable in operation and low in cost is formed by combining the common crane pipe with the suspended truss device, and the defects existing in use of an existing common crane pipe are overcome.

The utility model belongs to the technical field of connecting devices, and particularly discloses an automatic connecting device with a passive separation function. The problems that in the prior art, a connection mode is troublesome in operation, time-consuming and labor-consuming are solved. The device is designed for tank car interface flanges for media such as methane and ethane, is arranged at the tail end of a loading arm, and replaces a loose flange to be in butt joint with the tank car interface flanges. When the automatic connection device is in butt joint with an LNG tank car interface flange, the electric servo driving mechanism drives the driving gear and the driven gear to rotate through the speed reducing mechanism, the universal joint and the driving shaft, then the external threaded sleeve is driven to rotate, the external threaded sleeve drives the tensioning rod to tighten inwards through the internal threaded sleeve and then translates and presses the tensioning rod, and automatic connection is achieved. And the workload of workers is reduced, and the labor intensity is reduced. Compared with other flange connecting devices, the flange connecting device has the advantages of being high in compatibility, low in requirement for installation accuracy of an electric drive mechanism and convenient to machine and manufacture.

The application discloses a machine tool spindle comprehensive performance testing device and testing method, which comprises: a ground iron, a three-dimensional section axis-determining multi-sensor adjusting module, an axial loading unit, a radial loading unit, a loading arm, a spindle fixing module, a static stiffness module, a working stiffness module, a detection module and a workbench. The device can detect multiple performances of the machine tool spindle through different tool handle modules and loading units, reduces the cumbersome work caused by replacing the test bench, and greatly improves the testing efficiency. The test projects that can be completed by the test bench include thermal elongation testing, thermal deviation testing, axial static stiffness testing, radial static stiffness testing, axial working stiffness testing and radial working stiffness testing of the machine tool spindle.

The utility model relates to the technical field of crude oil crane pipes, and particularly discloses a crude oil crane pipe convenient to clean, which comprises a crane pipe body, and one end of the crane pipe body is rotatably connected with a rotary joint through the rotary joint; the crane pipe body comprises a plurality of sections of main pipelines and connecting flanges, and every two adjacent main pipelines are connected through the connecting flange with a sealing ring; the inner wall of the main pipeline is provided with flow guide ribs of a spiral structure. A connecting pipe is integrally formed at one end of the connecting flange, a plurality of annularly-distributed flow guide grooves are formed in the inner wall of the connecting pipe, the flow guide grooves and the main pipeline are arranged in an inclined mode, the crane pipe body is divided into the multiple sections of main pipelines, and the multiple sections of main pipelines are connected through the connecting flange, so that the crane pipe body is convenient to disassemble and maintain; and the flow guide ribs and the flow guide grooves are arranged on the inner wall of the main pipeline, so that fluid in the main pipeline can be guided to be quickly discharged, and the effect of facilitating cleaning is achieved.

The utility model relates to an automatic residual oil recovery oil transfer arm, relates to the technical field of oil transfer arms, and aims to solve the problem of residual oil products of the oil transfer arm. The automatic residual oil recovery oil transfer arm comprises a stand column, an inner arm connected with the stand column, an outer arm, an inner arm support and an outer arm support, and a residual oil recovery mechanism is arranged on the side, close to the stand column, of the inner arm support; the residual oil recovery mechanism comprises a recovery box, a flow guide pipe, a pneumatic butterfly valve and an explosion-proof pump, the recovery box is arranged on the supporting side wall of the inner arm, the pneumatic butterfly valve is arranged on the flow guide pipe, the two ends of the flow guide pipe are communicated to the recovery box and the elbow of the inner arm respectively, a flow guide ramp is arranged at the inlet end of the flow guide pipe, and the explosion-proof pump is arranged on the flow guide ramp. The flow guide ramp extends to the inner wall of the pipeline of the inner arm, and the anti-explosion pump is communicated to the bottom of the recycling box. The oil transfer arm has the advantages that oil products remaining on the inner arm, the outer arm and other parts of the oil transfer arm after oil loading and unloading operation is finished can be effectively collected, and oil product waste of enterprises is reduced.

A kind of automobile suspension control arm single test tool, including bottom plate, the bottom plate is equipped with big bushing installation support, small bushing installation support, shock absorber simulation installation support and three-way loading tool, big bushing installation support is equipped with big bushing installation seat, small bushing installation support is equipped with small bushing installation seat, shock absorber simulation installation support is equipped with shock absorber simulation swing arm installation seat, swing arm is rotatably connected on the shock absorber simulation swing arm installation seat, three-way loading tool includes a "C" type loading seat, the outside of the "C" type loading seat is equipped with the installation seat of X, Y, Z three-way loading arm respectively, one end of the X, Y, Z three-way loading arm is connected with "C" type loading seat respectively through installation seat, and the other end is connected with an actuator respectively, the opening of "C" type loading seat is connected and fixed by a bolt rod, the lower inner side wall of "C" type loading seat is equipped with a control arm ball pin fixed hole.

The utility model discloses a high -strength LNG loading and unloading arm relates to LNG loading and unloading arm technical field, including support seat and fixedly installed bottom pipe of support seat top, the inside rotation of bottom pipe is equipped with rotating column, and the outer wall upper end of rotating column is equipped with loading and unloading subassembly and fixedly installed, and the inside between rotating column and bottom pipe is equipped with rotating subassembly, and the inner wall lower end of bottom pipe is equipped with filter screen and fixedly installed, and the outer wall lower end of bottom pipe is equipped with oil injection pipe and fixedly installed, and the upper end spout of oil injection pipe is equipped with circulating oil pipe with bottom pipe lower end intercommunication, and the outer wall of bottom pipe is equipped with lubricating oil tank and fixedly installed, and the bottom of lubricating oil tank is equipped with oil filler pipe and intercommunication, and the lower end of oil filler pipe is equipped with oil injection pipe and is gone into. The utility model discloses can make loading and unloading arm when using, and lubricating oil continues to flow and effectively lubricates rotating subassembly, and the oil of lubricating drop can be collected after filtration and use again, improves the use intensity and use multifunction of loading and unloading arm.

This invention relates to a scaled-down rotating cable anchoring loading device and testing method, belonging to the field of civil engineering structural testing and measurement. It addresses problems such as eccentric loading, impure force distribution, unstable load, and poor spatial adaptation in traditional scaled-down models. The device comprises a box, a pulley guiding mechanism, a steel beam, and a top loading device. The box is secured to the scaled-down anchors using clamps or backfill. The pulley guiding mechanism consists of guide rails, a sliding table, vertical pulleys, and two sets of horizontal traction pulleys, allowing for three-dimensional adjustment to ensure the horizontal guidance of the cable. The top loading device employs a jack structure, using a lifting piston rod to vertically raise and lower the loading arm synchronously, applying horizontal tension and possessing a self-locking pressure-holding function, enabling long-term stable load holding. The testing method involves device installation, anchor and cable placement, pulley leveling, pre-loading, self-locking pressure holding, and data acquisition to complete the test. This invention achieves pure horizontal, high-precision, stable, and controllable loading. It features a compact structure, simple operation, and accurate acquisition of mechanical parameters, making it suitable for cable anchored scaled-down model testing.

The utility model discloses a petrochemical wharf oil transfer arm quick dismounting device which comprises a bearing plate, the upper surface of the bearing plate is fixedly connected with a frame, the inner surface of the frame is slidably connected with two moving plates, the inner surface of the frame is rotatably connected with a first bidirectional lead screw, and the two ends of the first bidirectional lead screw are connected with the two moving plates in a penetrating and threaded mode respectively. A main sliding groove is formed in the movable plate, two auxiliary sliding grooves are formed in the movable plate, the two auxiliary sliding grooves are located in the upper side and the lower side of the main sliding groove, a main sliding block is slidably connected to the inner surface of the main sliding groove, auxiliary sliding blocks are slidably connected to the inner surfaces of the auxiliary sliding grooves, and a main connecting block is fixedly connected to the rear surface of the main sliding block. The device can adapt to oil transfer arms of different sizes, so that the device has very high universality, different dismounting devices do not need to be specially designed and configured for the oil transfer arms of different sizes, and the equipment cost and the complexity of equipment management are reduced.

A vehicle and a method for side loading a hay bale. The vehicle has a frame, a side loader mechanism, and a storage assembly. The frame has a side oriented parallel to a direction of travel of the vehicle. The side loader mechanism is pivotably coupled to the side of the frame and pivots between an extended position and a retracted position. The side loader mechanism has a first loader arm and a second loader arm which open and close relative to one another, to thereby, squeeze a hay bale between respective ends of the first loader arm and the second loader arm. The storage assembly receives the hay bale from the side loader mechanism at a first location on the vehicle and conveys the hay bale along a path relative to the side loader mechanism from the first location to a second location on the vehicle.

A vehicle including a body assembly and an automated reach arm including a container engagement mechanism configured to selectively engage a container, a first actuator configured to selectively swing the automated reach arm with respect to the body assembly, a second actuator configured to selectively swing the container engagement mechanism, a first articulating arm segment hingedly coupled to the body assembly, a second articulating arm segment hingedly coupled to the first articulating arm segment and the container engagement mechanism, a third actuator configured to selectively rotate the first articulating arm segment with respect to the body assembly, and a fourth actuator configured to selectively rotate the second articulating arm segment with respect to the first articulating arm segment.

A single-arm loading and unloading device with visual automatic alignment includes a column assembly, an loading arm, a horizontal arm assembly, a visual positioning mechanism, and a vertical pipe lifting assembly. The column assembly includes a lower column, a rotary drive, and an upper column. The rotary drive is mounted on top of the lower column, and the upper column is mounted on the power output end of the rotary drive, which drives the entire upper column to rotate. The loading arm is mounted on the upper column. A lifting drive and a spring cylinder for balancing the weight of the loading arm are also installed between the inner and outer arms of the loading arm. The vertical pipe of the loading arm is mounted on the horizontal arm assembly via the vertical pipe lifting assembly, and the horizontal arm assembly is mounted on the upper column. This invention solves the technical problems of low efficiency, poor accuracy, susceptibility to collision damage, and low safety associated with traditional manual loading arm alignment, as well as the inaccurate positioning, insertion jamming, and lack of anti-drip protection in existing automated loading arms. It achieves precise, safe, and efficient automated loading and unloading operations on both sides of a single loading arm.

The present invention relates to a method for homogeneous marking of petroleum hydrocarbon stored within a reservoir on a vehicle with at least one marker. The method comprises inserting a loading arm comprising a marker injection conduit having a free end being operative to dispense a pulsating, pressurised marker stream and a gas injection conduit having a free end being operative to dispense a pulsating, pressurised gas stream into a reservoir of a vehicle. The method further comprises positioning the free end of the marker injection conduit at a marker height from a lowest surface of the reservoir and the free end of the gas injection conduit at a gas height from a lowest surface of the reservoir within petroleum hydrocarbon within the reservoir, wherein the free end of the marker injection conduit is located at the marker height which is larger than the gas height.

The utility model discloses a height-adjustable crane pipe, and relates to the field of crane pipe equipment. The height-adjustable loading arm comprises a spring cylinder, wherein the spring cylinder comprises a pull rod, a sleeve and a main springback assembly; the auxiliary springback assembly comprises a shell, auxiliary springs, a sliding rail and a pulley, the shell is fixedly connected with the sleeve, the auxiliary springs are fixedly arranged on the inner wall of the shell, the sliding rail is arranged on the auxiliary springs in the moving direction of the pull rod, the pulley is arranged on the abutting face of the sliding rail and fixedly connected with the pull rod, the abutting face is an inclined face, one end of the abutting face is close to the pull rod, and the other end of the abutting face is close to the sliding rail. The other end is far away from the pull rod; when the pull rod moves in the direction of increasing the elastic force of the main rebound assembly, the pulley moves towards the end, close to the pull rod, of the abutting face. The auxiliary springback assembly enables the elastic force provided by the main springback assembly to be reduced, and the reduction degree can be changed, so that under the condition that the height of a pipeline of the crane pipe is changed, the service life of the interface flange of the crane pipe and the service life of the interface flange of a tank car are prolonged, and the sealing performance is improved.

1. Name of the designed product: Full-automatic crane pipe (AL2543). 2. Use of the designed product: For full-automatic crane pipe. 3. Design points of the designed product: In shape. 4. Picture or photo best indicating the design points: Perspective view 1.

The utility model relates to wheel hub bearing immersion detection, and discloses a wheel hub bearing mud immersion test device, which comprises a driver, a loading arm and a first mud water pipe, an inner connecting disc is arranged on a main shaft of the driver, an outer connecting disc is arranged on the loading arm, a flange disc is arranged on the inner connecting disc, a water retaining frame is arranged between the inner connecting disc and the outer connecting disc, and the first mud water pipe is arranged on the water retaining frame. One side of the water retaining frame is in contact connection with the outer connecting disc, the other side of the water retaining frame wraps the outer side of the flange disc, a first gap is formed between the water retaining frame and the flange disc, and the water outlet area S2 of the first gap is smaller than the nozzle area S1 of the first muddy water pipe. The immersion state of the rotating end bearing sealing assembly is achieved through the flow difference of flowing-in and flowing-out of muddy water in the water retaining frame. Flange plates with different outer diameters are selected, and the size of the first gap is controlled, so that the immersion test is realized. The device can be repeatedly used, does not contact with a rotating flange, does not affect the rotating speed of a bench test, avoids immersion of a rotating main shaft of equipment, and does not have adverse effects on the test equipment.

The utility model relates to the technical field of crane tubes, and particularly discloses a novel intelligent crane tube rotary joint which comprises an outer ring, a worm shell and an inner ring, the worm shell is arranged on the peripheral side of the outer ring, the worm shell and the outer ring are integrated, the inner ring is arranged in the outer ring, the inner ring and the outer ring are concentrically arranged, one end of the outer ring is connected with a second flange plate, and the other end of the outer ring is connected with a third flange plate. One end of the inner ring is connected with a first flange plate, a worm gear is machined on the peripheral side of the middle of the inner ring, a worm is installed in the worm shell, and the worm is connected with the worm gear in a meshed mode. The novel rotary joint adopts an integral structure which is integrated with the worm gear and the worm, so that the traditional mounting mode of fixing the worm gear and welding the bracket and the worm by screws is cancelled, the assembly steps are reduced, and the production efficiency is improved by about 15-20%; as the assembly tolerance and the number of parts are reduced, the product quality is more stable, the rotating precision is higher, meanwhile, the structure is compact, portable and small, and the intelligent crane pipe is more attractive when used.

The present invention provides a ship-to-shore joint that allows workers to perform the connection and separation of joint flanges with high precision by simplifying the process. [Solution] The ship-to-shore joint is provided on the ship side and comprises a first vacuum double tube including a first half outer tube and a first half inner tube, a first outer flange provided at the loading arm end of the first half outer tube, a first inner flange provided at the loading arm end of the first half inner tube, a first closure body that closes the space between the loading arm ends of the first half inner tube and the first half outer tube, a second vacuum double tube provided on the loading arm side and including a second half outer tube and a second half inner tube, a second outer flange provided at the ship side end of the second half outer tube, a second inner flange provided at the ship side end of the second half inner tube, and a second closure body that closes the space between the ship side ends of the second half inner tube and the second half outer tube.

The application discloses a swivel joint for a loading arm, which comprises a joint body, a channel is arranged in the joint body, and the channel is used for liquid flow; the joint body comprises a fixed assembly and a rotating assembly; the fixed assembly is used for connecting an external receiving pipeline; the rotating assembly is used for connecting an external input pipeline; the rotating assembly and the fixed assembly can rotate relative to each other, so that the external input pipeline can rotate to receive liquid from different directions; the joint body further comprises a driving assembly, which is used for driving the rotating assembly to rotate; and a shell assembly is arranged on the joint body, which is used for avoiding pollution of the joint body by an external environment and can block liquid ejection when the joint body leaks, so that accidents can be avoided.

The utility model provides a kind of pneumatic oil receiving hopper of crane pipe head, including collecting device and fixing device, fixing device includes a platform, two platforms and three platforms, and each platform includes half moon frame, and half moon frame is fixedly connected between by bolt, and half moon frame side is connected with collecting device;Collecting device includes oil receiving hopper, pneumatic assembly, movable piece and clamp, and movable piece is equipped on the outer surface of oil receiving hopper, and one end of movable piece is connected with pneumatic assembly by clamp. Through the independent control of pneumatic assembly, the receiving and releasing of oil receiving hopper is effectively avoided to drop the oil in the inner wall of crane pipe, and the oil receiving hopper is detachable structure, and different sizes of crane pipe can be flexibly replaced.

The utility model relates to the field of metal material fracture mechanical tests, and particularly discloses a fracture toughness test clamp suitable for various thicknesses, which comprises a clamp seat and two opposite loading arms, the loading arms are slidably connected onto the clamp seat, the two loading arms are simultaneously in threaded connection onto a two-way screw, the two-way screw is mounted on the clamp seat, and the two-way screw is in threaded connection with the clamp seat. The two loading arms are used for getting close to or getting away from each other along the two-way screw, and the two-way screw is in threaded connection to the center line of the loading arms. The scheme is used for solving the problem that a traditional integrated tool cannot adapt to samples with different thicknesses.

This application relates to an emergency disconnect valve for automated loading arms, belonging to the technical field of loading arm accessories. It includes a valve seat with fixed plates on the inner walls of both ends. Each fixed plate has a flow hole extending through it along its thickness direction for fluid passage. Two flow-blocking plates are positioned between the two fixed plates, each with a through hole extending along its axis. Two flow-blocking blocks are positioned between the two flow-blocking plates, with the diameter of each block gradually increasing from the end closest to the adjacent flow-blocking plate towards the other. An inclined surface is formed on the inner wall of the through hole. An elastic member is positioned between the two flow-blocking blocks. Two sets of limiting mechanisms are provided within the valve seat corresponding to the flow-blocking blocks to restrict the movement of the flow-blocking blocks by the elastic member. A triggering mechanism is also provided within the valve seat to release the limiting mechanisms and allow the elastic member to move the flow-blocking blocks. A reset window is hinged to the surface of the valve seat. This application improves the convenience and economic efficiency of reusing emergency disconnect valves.

The loading arm unloading equipment comprises an unloading platform, a first lifting device, a vertical pipe device and a loading arm device, the unloading platform is erected above an unloading opening of storage equipment, the first lifting device is arranged on the unloading platform, and the vertical pipe device comprises a vertical pipe assembly and a sealing assembly; the vertical pipe assembly is in driving connection with the first lifting device and can stretch into or retreat from an inner cavity of the storage equipment from the discharging opening under driving of the first lifting device, the sealing assembly is arranged on the outer side of the vertical pipe assembly and used for sealing the discharging opening, and the vertical pipe assembly is divided into a heating flow channel and a liquid phase flow channel. The loading arm device comprises a heating loading arm and a liquid-phase loading arm, the heating loading arm is communicated with the heating flow channel and used for introducing a heating medium into the inner cavity of the storage equipment, the liquid-phase loading arm is communicated with the liquid-phase flow channel and used for guiding out materials in the inner cavity of the storage equipment, and the loading arm unloading equipment can realize heating and sealed unloading at the same time, so that the unloading operation is simplified, and the unloading efficiency is improved. And the body health of operators is ensured.

This application relates to the field of crude oil loading and transportation technology, and discloses a closed loading system suitable for low flash point shale oil, including an oil pipeline and a gas phase balance pipeline. The oil pipeline includes an oil storage tank and an oil delivery mechanism. The oil storage tank is connected to a gas supply pipeline that keeps it under positive pressure. The gas phase balance pipeline includes a return pipeline, one end of which is connected to a gas phase loading arm. A check valve is connected to the side of the return pipeline near the venting pool to prevent gas flow back into the tank truck. A flame arrester is connected between the check valve and the gas phase loading arm. This method eliminates the need to introduce gas from the tank truck into the oil storage tank, thereby achieving fully closed loading under a slightly positive pressure state, reducing the volatilization and explosion of combustible gases and VOC emissions during loading, and eliminating the risk of personnel injury caused by frequent manual climbing to inspect observation holes.

The invention discloses a full-automatic train crane pipe filling system and method, and relates to the technical field of crane pipe filling, the full-automatic train crane pipe filling system comprises a canopy, a filling parking identification area is arranged below the canopy; the radar and the monitoring camera are arranged below the canopy in parallel; the crane pipe mechanical arm comprises a fixed supporting column, an inner arm pipe set, an adapter pipe, an outer arm pipe set, a vertical pipe, an inner arm driving mechanism, an outer arm driving mechanism and a vertical pipe driving mechanism. A first network switch, a network hard disk video recorder, an industrial personal computer and a display screen are arranged in the central control room; a second network switch electrically connected with the first network switch, the radar and the monitoring camera and a controller electrically connected with the second network switch are arranged in the control cabinet; and the controller is electrically connected with the inner arm driving mechanism, the outer arm driving mechanism and the vertical pipe driving mechanism. The loading arm is simple in structure and good in stability, automatic positioning, alignment and returning of the loading arm can be achieved through remote operation, potential safety hazards are reduced, and the filling efficiency is improved.