7274results about "Mechanical machines/dredgers" patented technology

The invention relates to the technical field of cutter suction dredger steel pile trolley control, and discloses a cutter suction dredger steel pile trolley control method and system based on hydraulic excitation early warning, and the method comprises the steps: collecting the influence degree of multiple parameters on the system stability, calculating a pressure fluctuation factor and the like to form a state feature set; constructing a dynamic pressure balance model, inputting data such as a pressure time sequence queue and a sea condition level, and outputting a dynamic pressure adjustment value; constructing a cooperative control correction model, inputting steel pile attitude data and outputting a cooperative correction coefficient; and calculating a final control output quantity by combining the adjustment value and the correction coefficient, and generating a hydraulic excitation control instruction set. The system comprises a multi-source sensor module, a state feature calculation module, a dynamic pressure balancing module and the like, and multi-dimensional data fusion and intelligent control are achieved. The stability, the control precision and the environmental adaptability of the steel pile trolley system are improved, and the method is suitable for the control scene of the cutter suction dredger steel pile trolley.

The invention relates to the technical field of underwater leveling machines, in particular to a transverse and longitudinal walking mechanism, a multi-degree-of-freedom adjusting underwater leveling machine and a construction method. The transverse and longitudinal walking mechanism comprises an end part structure, and a first hole is formed in the end part structure in a penetrating manner; a first hole is formed in the end structure in a penetrating manner; at least part of the transverse moving frame is located in the first hole, and the transverse moving frame is in sliding fit with the end structure in the radial direction of the first hole; the walking longitudinal beam penetrates through the transverse moving frame in the length direction of the first hole and is in sliding fit with the transverse moving frame. The first vertical lifting supporting leg is connected with the end part structure; and the second vertical lifting support leg is connected with the walking longitudinal beam. According to the transverse and longitudinal walking-pedrail walking mechanism, the mode that the walking-pedrail longitudinal beam is sleeved with the transverse moving frame, the transverse moving frame is sleeved with the end structure, the transverse moving frame is used for replacing a transition frame of an existing walking-pedrail type leveling machine, and therefore the overall weight of the transverse and longitudinal walking-pedrail walking mechanism is effectively reduced.

To provide a wave monitoring system for a construction area based on image information recognition, which can optimize the route and adjust the work strategy based on accurate risk judgment results, reduce the probability of the ship blindly entering the risky sea area, ensure the smooth implementation of the navigation plan, and complete the construction work on time. [Solution] The system includes a monitoring area setting module, a wave image collection module, a wave parameter analysis module, a break condition monitoring module, a swell condition monitoring module, and a risk situation recognition module, and is configured to further determine whether a risk exists for the target dredging construction vessel based on the determination result of whether a wave risk situation will occur in each monitoring area.

The utility model belongs to the field of underground water well desilting equipment, and discloses a portable desilting device for a small-caliber shallow underground water monitoring well, which comprises an air compressor and a tripod, the air compressor is detachably connected with a high-pressure air pipe, the high-pressure air pipe is a high-pressure rubber pipe, the high-pressure air pipe is detachably connected with a flushing head or a gas-liquid mixer, and the tripod is connected with the flushing head or the gas-liquid mixer. The inner diameter of the flushing head is 1 / 2 of the inner diameter of the high-pressure gas pipe, the gas-liquid mixer is detachably connected with a bottom suction pipe and a gas-liquid return pipe, the gas-liquid return pipe is detachably connected with a solid-liquid separation device, the solid-liquid separation device is detachably connected with a recharge pipeline, the recharge channel, the bottom suction pipe and the gas-liquid return pipe are all flexible channels, and the tripod is fixedly connected with pulleys. The pulley is movably connected with the high-pressure air pipe; the underground water well dredging device solves the problems that cracks cannot be dredged in an existing dredging mode, and silt which rises along a well hole and is discharged to the ground can pollute the surrounding environment, and is suitable for underground water well dredging.

A linear actuator system includes a linear actuator and an integrated pump assembly connected to the linear actuator to provide fluid to operate the linear actuator. The integrated pump assembly includes a pump with two fluid drivers, each fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The linear actuator system also includes a controller that establishes the pump in a normal mode of operation in which the prime movers are independently driven and switches to a fail-safe mode of operation in which only one prime mover is operated.

Systems and techniques are described for implementing autonomous control of powered earth-moving vehicles, including to automatically control use of a ripper tool attachment to loosen ground materials for subsequent blade tool operations, such as to determine placements of the ripper tool for multiple ripping passes so that its teeth perform ground-loosening operations that in the aggregate span the width of a blade tool to be used for subsequent pushing / cutting operations. For example, the techniques may include obtaining information about a width of a ripper tool attachment and placement of one or more teeth on the ripper tool, obtaining information about a width of a blade tool attachment, and determining multiple placements of the ripper tool attachment during ripping operations that in the aggregate cover the width of the blade tool attachment to be used for subsequent pushing / cutting operations.

The invention relates to the technical field of excavator bucket rods, and provides a bucket rod composite damping device and an excavator. The device comprises a shell composed of a base, an outer shell and a stress shell; the magneto-rheological buffer device is installed in the shell and composed of a lattice structure made of magneto-rheological elastomer materials and magneto-rheological fluid filled in gaps corresponding to the lattice structure, and a plurality of sound absorption holes are formed in each cell element wall in the lattice structure; the electromagnetic device is located in a containing cavity formed in the lattice structure and is composed of a magnetic core and an electromagnetic coil; the anti-vibration pad and the stress plate are embedded in the top of the shell and are in contact with the stress plate; the damping springs are arranged on the periphery of the shell and fixedly connected between the stress plate and the base; the vibration monitoring module is used for collecting vibration data of the bucket rod in real time and transmitting the vibration data to the intelligent control module, and the intelligent control module is used for adjusting the output magnetic field intensity of the electromagnetic coil according to the vibration data so as to adjust the viscosity of the magnetorheological fluid in real time.

The invention provides an intelligent mechanical hydraulic excavator bucket track automatic control method and system, and relates to the technical field of data processing, the method comprises the following steps: obtaining target track data and excavation working condition data; the expected stress of the bucket on the target track is calculated based on the mechanical property of the hydraulic system, the movement track of the bucket and the soil resistance change; calculating a trajectory correction compensation amount by combining the dynamic response characteristics of the hydraulic system and historical trajectory deviation data; real-time track data of the bucket are obtained, and the current track offset is calculated in combination with the target track data; calculating a correction control quantity to obtain a correction control instruction; the control parameters of the hydraulic cylinder are adjusted to correct the track of the bucket, so that the bucket runs along the target track; track correction is repeatedly executed until the bucket completes the excavation task of the target track; according to the invention, autonomy and accuracy of automatic control of the track of the bucket are improved.

A work vehicle includes a boom coupled to a machine body, an arm coupled to the boom, a bucket coupled to the arm and including an edge portion to function as a leading edge when the bucket excavates earth, a rotation sensor to measure rotation of a to-be-measured object which is at least one of the boom, the arm, or the bucket, and a controller configured or programmed to control rotation of the to-be-measured object. The controller is configured or programmed to control rotation of the to-be-measured object based on an output value obtained by applying a correction function directly or indirectly to a difference between a target angular velocity for rotation of the to-be-measured object and an actual angular velocity of the to-be-measured object derived based on a measurement result from the rotation sensor, the correction function being based on the actual angular velocity.

According to the intelligent control method and system for the double-wheel milling and deep stirring equipment, geological data of a construction area are obtained through preset stratum detection equipment, geological data corresponding to a construction groove section are determined, and the tunneling speed is intelligently adjusted in combination with the milling wheel torque monitored in real time and the current tunneling depth. According to the method, speed adjustment is carried out according to milling wheel torque data, tunneling depth and stratum geological data, meanwhile, associated data of the tunneling depth and the speed are generated, and finally cement paste is injected into a groove section when equipment is lifted. According to the intelligent control method, construction parameters can be adaptively adjusted according to different geological conditions, the milling efficiency and precision are effectively improved, equipment abrasion is reduced, and the service life of equipment is prolonged. Through the combination of real-time data monitoring and intelligent parameter adjustment, the method realizes the accurate control and optimization of the construction process of the milling and deep stirring equipment, and provides more efficient and reliable technical support for the construction of the cement-soil continuous wall.

The invention relates to a trailing suction hopper dredger comprising; - a propulsion system for propelling the trailing suction hopper dredger, - a suction system for transporting dredged material from a bottom of a body of water into the trailing suction hopper dredger, and having i. a suction head ii. a suction tube, and a iii. suction tube inlet connection of the trailing suction hopper dredger, - an inboard pump system for driving a flow of dredged material in the suction system, wherein the suction tube is bow pointing from the suction tube inlet connection.

A work machine includes a lower traveling body; an upper slewing body slewably mounted on the lower traveling body; an external microphone configured to collect sound around a work machine; an internal speaker configured to output sound to an operator of the work machine; an information transmission device configured to enable a worker around the work machine to recognize whether or not a voice of the worker has reached the operator of the work machine; and a processor, and a memory storing instructions that cause the processor to execute a process. The process includes collecting, by the external microphone, sound around the work machine; outputting, by the internal speaker, the sound to the operator of the work machine; and enabling, by the information transmission device, the worker around the work machine to recognize whether or not a voice of the worker has reached the operator of the work machine.

The present invention is related to a method for coupling an attachment to a radio-controlled vehicle by means of a connection system having a support, an attachment-holder unit and a coupling unit. The support is fixed to a radio-controlled vehicle and the attachment-holder unit is fixed to the attachment. The coupling unit is automatically operable, in particular it is remotely operable, without the direct intervention of an operator to selectively connect or disconnect the support and the attachment-holder unit to / from each other.

The invention belongs to the technical field of trajectory planning, and provides an electric shovel unmanned mining method and system based on digital twinning in order to solve the problem that the design of an electric shovel unmanned mining trajectory is difficult to deal with a complex heap surface, and the method comprises the following steps: obtaining sensing data, a historical mining trajectory and historical heap surface point cloud data; an electric shovel unmanned mining digital twin system is constructed based on the sensing data; uploading the historical mining trajectory and the historical heap surface point cloud data to a central database, and training by using generative artificial intelligence to obtain prediction trajectories suitable for different mine fields; constructing an agent model by using a neural network, calculating to obtain a predicted fullness rate, and performing simulated excavation according to the predicted fullness rate and the predicted trajectory to obtain electric shovel excavation control data; according to the method, deep reinforcement learning is utilized, the electric shovel unmanned excavation track is generated based on the electric shovel excavation control data, the electric shovel is controlled to conduct unmanned excavation in real time, the safety of the excavation process is guaranteed, and the track control precision of the electric shovel is also improved.

This disclosure describes, in part, systems and methods for dynamic allocation, monitoring, and reallocation of work machines (108) at a worksite (100) by using a controller (112) to monitor ranked production circuits (102) and dynamically reallocate work machines (108) based on their energy consumption, energy availability, machine operating parameters, flow rates, delays, wait times, and other such factors to provide compliance with the ranked production plan (204). The controller (112) is used to determine slow-downs, delays, queues, or other potential delays, including insufficient energy availability for a particular work machine allocation (110), and to dynamically adjust to provide for work machines (108) to reduce empty travel time and to maintain material flow rates or other metrics of the production plan (204).

The invention belongs to the field of lake ecological desilting, and discloses a shallow lake bottom mud ecological desilting and residual water treatment combined treatment method which comprises lake bottom mud ecological desilting, solidification dehydration treatment and residual water treatment. Ecological dredging of the lake bottom mud is implemented by adopting an environment-friendly cutter suction dredger and a sealed pipeline to convey mud, and the bottom mud is conveyed to a mud discharge field to be solidified and dehydrated. A vacuum preloading technology is adopted for solidification and dehydration of the bottom mud, pore water of the bottom mud is effectively discharged by increasing the pressure difference between soil bodies of a drainage plate, and the overall solidification effect is improved. The residual water treatment comprises the treatment of desilting and solidifying residual water, the technologies of multi-stage precipitation, mechanical aeration, aquatic plant remediation and the like are adopted, and the residual water is discharged nearby after being treated to reach the standard. The combined treatment method aims at effectively reducing endogenous pollution of lakes, promoting lake water quality improvement and guaranteeing water safety of regional lakes and reservoirs, and is particularly suitable for ecological dredging engineering of shallow lakes, short construction period and fine-particle bottom mud.

A compact work machine, such as a compact track loader and / or a compact utility loader, which can carry and operate a wide range of attachments while maintaining a reduced operating footprint.

A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a surroundings monitoring device attached to the upper turning body, and a controller configured to identify the state of an object based on the output of the surroundings monitoring device.

An object of the present invention is to provide a work machine that can increase the operation speed of an actuator by a regenerating function while ensuring accuracy of position control of the actuator. For this purpose, a controller computes a target actuator supply flow rate by subtracting a regeneration flow rate from a target actuator flow rate, computes a target flow control valve opening amount on the basis of the target actuator supply flow rate, computes a target pump flow rate equal to or more than the sum of a plurality of the target actuator supply flow rates, controls flow control valves according to the target flow control valve opening amount, and controls a hydraulic pump according to the target pump flow rate.

An equipment for in-situ restoration of sediment, including an amphibious platform and following devices provided on the amphibious platform: a screw suction device, one end of which is hinged to one end of the amphibious platform, and the other end can extend into the sediment for sucking up the sediment; a dehydration device that is provided downstream of the screw suction device and communicates with one end of the screw suction device; a sediment treatment device that is provided downstream of the dehydration device for treating the sediment and processing it into a planting base; a grass blanket processing device that is provided downstream of the sediment treatment device for planting submerged plants on the planting base to form a submerged grass blanket; a grass blanket paving device, one end of which is close to the grass blanket processing device, and the other end extends toward the screw suction device and into the water; a drainage pipe that respectively communicates with the dehydration device and the sediment treatment device; and a hopper through which the sediment is conveyed between the dehydration device and the sediment treatment device. In the invention, the highly polluted sediment is subjected to bio-safety disposal to form a planting base for the growth of submerged vegetation, so as to realize the in-situ restoration of the sediment of rivers and lakes.

A dozer including a cabin, the dozer includes: an engine room located in front of the cabin, where an engine is disposed; an exhaust gas after-treatment device for purifying exhaust gases emitted from the engine; a first cooling device located in front of the cabin and capable of cooling the exhaust gas after-treatment device; and a second cooling device spaced apart from the first cooling device, with the cabin midway therebetween, and capable of cooling the engine.

The invention discloses a rollover risk prediction method for an operation machine, and the method comprises the steps: determining target attitude information corresponding to the operation machine and a target rotation angle of the operation machine around a first rollover line under the condition that the operation machine is in a bucket supporting condition, the target posture information is used for representing the supporting posture of the operation machine under the bucket supporting working condition, and the first tip-over line is a connecting line between supporting points of the operation machine under the bucket supporting working condition; determining a target stability parameter corresponding to the operation machine based on the target attitude information, the target rotation angle and a preset mapping relation; the mapping relation is used for representing the relation among the rotation angle, the attitude information and the stability parameter of the operation machine; and determining the tipping risk of the operation machine according to the stability parameter. According to the invention, the tipping risk of the operation machine can be accurately determined.

A display system of a work machine includes a three-dimensional data acquisition unit that acquires three-dimensional data of a work target of ripper working equipment coupled to a vehicle body of a work machine, an image data acquisition unit that acquires a work target image showing an image of the work target, a contact position calculation unit that calculates, based on the three-dimensional data, an initial position of a ripper blade edge provided in a shank of the ripper working equipment, and a moving path of a ripper point, a contact position with which the ripper point comes into contact in the work target, a contact position image generation unit that generates a contact position image showing the contact position, and a display control unit that combines the work target image and the contact position image and causes a display device to display a combined image.

To provide an attitude control device for an attachment arranged between a tip of a hydraulic shovel and the attachment to stabilize right and left tilting and rotating of the attachment.SOLUTION: Provided is an attitude control device for an attachment in which a tilting frame (10) is constituted by fixing, on an upper frame (12), a tilting frame bearing (3) supported on a body bearing (2) of a body frame (1) to be attached at a tip of a hydraulic shovel with a tilting pin (4) and by bolt-fastening a lower frame (13) to the upper frame (12) and a worm gear (11), and a hydraulic piping part for guiding hydraulic pressure from the body frame (1) to a hydraulic device in the tilting frame (10) is provided in the tilting pin (4) to adjust a gap between pins of the attachment through rotation of a pipe nut (22) opposite to a fastened hook (14) provided on the tilting frame and screwed on a screw rod (21) with a movable hook (15).SELECTED DRAWING: Figure 3

A hydraulic system includes a prime mover, a variable displacement first hydraulic pump to be driven by the prime mover to deliver hydraulic fluid, a first hydraulic actuator to be driven by fluid delivered by the first hydraulic pump, a variable displacement second hydraulic pump to be driven by the prime mover to deliver hydraulic fluid, a second hydraulic actuator to be driven by fluid delivered by the second hydraulic pump, and first and second restrictors configured or programmed to restrict an output of the respective first and second hydraulic pumps based on a load on the prime mover. The first restrictor is configured or programmed to change an output restriction of the first hydraulic pump based on priority information about the first and second hydraulic actuators and / or the second restrictor is configured or programmed to change an output restriction of the second hydraulic pump based on the priority information.

The invention provides an oil level monitoring and leakage early warning system for a hydraulic system of a dredger, which relates to the technical field of hydraulic system monitoring and comprises a hydraulic oil tank, an actuating mechanism assembly connected with the hydraulic oil tank through a pipeline, a data processing unit, a multi-source sensing module, an early warning module and a control module, the multi-source sensing module comprises an integrated liquid level sensor, an actuating mechanism displacement sensor group, an attitude sensor and a temperature sensor, and is used for collecting hydraulic oil level, displacement of each actuating mechanism, ship trim / heeling angle and oil temperature data in real time; the dynamic compensation calculation module is connected with the data processing unit; and the intelligent early warning module is connected with the data processing unit. Normal change and leakage can be distinguished by calculating the oil level change caused by the action of the executing mechanism and the posture of the ship, early warning is conducted in time, pollution and economic losses are prevented, and the situation that when workers inject hydraulic oil, the hydraulic oil splashes, bubbles are generated, and a hydraulic element is damaged can be prevented.

The present invention discloses a hydraulic breaker body, specifically related to the field of hydraulic breakers, which includes an upper cylinder body assembly and a through-bolt assembly. The bottom end of the upper cylinder body assembly is provided with a middle cylinder body assembly, and the end of the middle cylinder body assembly away from the upper cylinder body assembly is provided with a lower cylinder body assembly. The upper cylinder body assembly, the middle cylinder body assembly, and the lower cylinder body assembly are detachably connected through the through-bolt assembly. A piston rod is movably installed inside the middle cylinder body assembly. A nitrogen chamber is provided at the bottom end of the upper cylinder body assembly, and the top end of the piston rod is movably sealed at one end of the nitrogen chamber. An oil passage is opened on one side of the middle cylinder body assembly. Through two design methods, the present invention realizes the adjustment of the impact frequency of the steel drill rod of the hydraulic breaker based on the hardness of the object to be acted on, making the hydraulic breaker have ultra-high crushing performance, ultra-low failure rate, ultra-high stability, ultra-high durability, and is more labor-saving, environmentally friendly, resource-saving, and can improve the service life of the product.

An excavator includes: a lower travel body; an upper slewing body mounted on the lower travel body in a slewable manner; an attachment attached to the upper slewing body; a control device configured to perform control related to activity of the excavator; a first input apparatus configured to receive an input from a user; and a display apparatus configured to display a screen operable in response to an input from the first input apparatus. The control device has a plurality of control modes for the control related to the activity of the excavator, and the display apparatus is configured to display one predetermined screen on which the user can discretionarily select one control mode from the plurality of control modes by performing an operation through use of the first input apparatus.

The invention discloses an elbow upper limiter mounting structure for a trailing suction dredger, and belongs to the technical field of dredgers. An elbow upper limiter mounting structure for a trailing suction dredger comprises a supporting plate fixedly arranged on a ship support, the supporting plate comprises a lower supporting plate and an upper supporting plate, a guide rod is arranged between the lower supporting plate and the upper supporting plate, a mounting seat is slidably connected to the outer side of the guide rod, and a hoop is connected to the mounting seat through a bolt. A sensor body is arranged between the hoop and the mounting base, a positioning assembly is arranged on the mounting base, a positioning groove matched with the positioning assembly is formed in the ship support, and the positioning groove is formed in the lower side of a ship winch; according to the invention, the phenomena that the sensor cannot sense and is stuck are conveniently reduced and eliminated, the time for personnel to go to the site for inspection treatment and repair is reduced, the time utilization rate is increased, the dredging time is increased, meanwhile, the arrangement of personnel specially going to the site for treatment is also cancelled, the manpower use efficiency is improved, and the manpower cost is reduced.

PROBLEMS: To provide a work support device capable of automatically aligning a blade edge of a bucket along a work surface even changeable an angle of the bucket by a tilt mechanism and a swivel mechanism, and to provide a work machine equipped with the same. SOLUTIONS: A work support device for automatically controlling a position of a bucket (9) includes a controller (50) for controlling at least one of a tilt angle of the bucket (9) by a tilt mechanism (25) and a rotation angle of the bucket (9) by a bucket cylinder (21) so as to reduce an angle residual between an angle of a blade edge of the bucket (9) calculated based on detection of a sensor unit (52) and an angle of a work surface input in advance.