1894 results about "Towing" patented technology

The invention provides a gate position distribution method and device, and the method comprises the steps: obtaining flight data, resource data and gate position data, the resource data comprises dragging resource data, and the gate position data comprises the state data of each gate position; based on a pre-configured dragging rule, determining a dragging constraint and an optimization target corresponding to the flight data; based on a pre-configured parking space distribution rule, determining a parking space distribution constraint and an optimization target corresponding to the flight data; and based on the flight data, the resource data, the gate position data, the dragging constraint and optimization target corresponding to the flight data and the gate position allocation constraint and optimization target corresponding to the flight data, generating a flight dragging scheme and a gate position allocation scheme. According to the method and the device, the flight dragging and the aircraft position distribution are considered at the same time, the flight dragging scheme is automatically generated while the aircraft position distribution scheme is generated, a collaborative plan of the dragging scheme and the aircraft position distribution is realized, and various indexes of the aircraft position distribution in an airport are effectively improved.

The invention provides a method and system for measuring resistance in an underwater vehicle towing test, and relates to the technical field of underwater vehicle hydrodynamic performance testing, and the method comprises three links of gravity center adjustment, measurement data processing and uncertainty analysis. Firstly, it is ensured that the gravity center and the buoyancy center of a test model are consistent in height, model attitude stability is ensured, and resistance measurement errors caused by attitude changes are eliminated. Secondly, measuring the sailing resistance of the test model in the towing test, and post-processing the measured data to obtain the total resistance coefficient of the test model at the test temperature; and finally, quantizing errors of each link and synthesizing expansion uncertainty by adopting a deviation limit and precision limit combined uncertainty analysis method. Compared with a traditional single-index evaluation method, the method not only can reveal error sources and quantify the influence of each link on the measurement result, but also can accurately reflect the composite effect of errors, and ensures the reliability of the resistance measurement result.

Disclosed is a multifunctional stable winch hook guide rail system. The system includes: a storage buckle; a guiding groove, where the guiding groove is formed on a front face of the storage buckle, a movable opening is formed on a back face of an inner wall of the guiding groove, and a winch hook is arranged inside the guiding groove; a hanging opening, where the hanging opening is located at a top of the winch hook at a position close to one end thereof, a side of an inner wall of the hanging opening is fixedly connected to a connector, an outer surface of the connector, through an insertion pin, is rotatably connected to a movable buckle. The winch hook can be easily tightened and securely locked in the guiding groove. The winch hook has a uniform and clean appearance and is used for rescue and heavy-duty towing tasks.

A control system for a towed object (1, 6; 20; 30; 50) in or on a body of water comprise one or more towing members (3) extending between the object (1) and a towing vessel (2). One or more ballast members (4) are movably connected to a respective one of said one or more towing members (3) and controllably movable at least a distance along its respective towing member. The towed object (1) may be controlled by moving one or more ballast members (4) on a towing member (3) in order to control the catenary (c) of a towing member (3). Individual ballast members (4) may be manipulated individually in order to correct, preserve or otherwise change the geometry of a trawl.

A floating object cleanup device includes a collection vessel, two towing vessels with built-in power systems, and two intercepting arms. The collection vessel and the two towing vessels are hooked together by the two intercepting arms. Each of both sides of the collection vessel is provided with an intercepting arm tightening assembly and an arm supporting member. The intercepting arm tightening assembly includes rotating shaft sleeves, positioning blocks, a rotating shaft, and tightening arms. Multiple rotating shaft sleeves are fixed to positions, adjacent to the top, on a side surface of the collection vessel through the positioning blocks. The rotating shaft penetrates all the rotating shaft sleeves located at one side of the collection vessel, and an elastic member is positioned at a position where the rotating shaft contacts with the rotating shaft sleeve.

A trailer hitch with lift mechanism includes a vehicle connection point, an adjustable hitch base, a motor, and a hitch locking assembly. The motor is powered via a trailer hitch plug of a towing vehicle. The adjustable hitch base includes a plurality of adjustment apertures and one or more guide tracks. The hitch locking assembly is slidingly coupled to the adjustable hitch base and includes one or more guide rollers slidingly associated with the guide tracks, a backing plate, an aperture configured to receive a ball, and one or more adjustment locking devices. Rotation of the drive shaft causes the hitch locking assembly to move relative to the adjustable hitch base.

A flat towing technique for an electrified vehicle includes in response to a request for and during a flat towing operation, monitoring at least a back electromotive force (EMF) generated by an electric motor of the electrified powertrain, performing field weakening control of the electric motor such that the back EMF generated by the electric motor during the flat towing operation maintains a high voltage bus that powers the electric motor at a target voltage level, selectively isolating a high voltage battery system of the electrified powertrain from the high voltage bus based on a desired capacity of the high voltage battery system, and adjusting the target voltage level for the high voltage bus based on respective lower limits for electric motor speed and high voltage bus voltage and when the high voltage battery system is isolated from the high voltage bus.

An apparatus for alerting an operator to the presence of obstacles during the towing or push-back of an aircraft while it is on the ground, including: a self-propelled platform; at least one sensor attached to said platform, configured to sense potential obstacles; and a communication system attached to said platform for transmitting data relating to said sensed obstacles, the communication system being operable to communicate with at least one of: a same said apparatus; an operator control panel; a command centre; the aircraft being towed or pushed-back; and a vehicle towing or pushing-back the aircraft. An aircraft collision avoidance system is used during towing or push-back of an aircraft while it is on the ground, the system includes: at least one apparatus as described; and a carrier configured to carry the at least one apparatus.

The invention relates to a method for calculating the towing stability of an underwater towing system. The method comprises the following steps: establishing stability calculation of the underwater towing system by considering the influence of a towing cable, unifying calculation under coupling of a horizontal plane and a vertical plane, analyzing and judging the stability based on characteristic values, and performing design improvement based on characteristic vector judgment. According to the method, the dragging stability of the underwater dragging system can be calculated and used for evaluating the dragging stability of the underwater dragging system, the stability of different parameters of the dragging system is calculated through the method, system optimization is achieved, the dragging stability is improved, and the specific requirements of some dragging systems for tension, position and posture are met.

According to the caisson wharf and the construction method thereof, a layered structure of a steel slag-rubber particle composite lower layer and a regenerated resin-basalt fiber composite upper layer is adopted for a base, and interface bonding is enhanced in combination with a silane coupling agent; the foundation bed is assembled by precast concrete modules and is poured by nano mortar; the caisson main body is provided with a positioning plate which is inserted into the guide groove, the caisson main body is filled with multi-graded steel slag fragments, and an independent airbag cavity is pre-buried in a bottom plate; the buoyancy control system dynamically adjusts the water injection rate based on multi-sensor data; the ecological permeable pipeline network adopts a diatomite-zeolite coating; the prestressed steel strand towing system is regulated and controlled in real time through the friction damper. The caisson wharf and the construction method thereof have the remarkable advantages in the aspects of structural stability, ecological friendliness, construction efficiency, intelligence and automation, the problems existing in a traditional caisson wharf can be effectively solved, and the requirements of modern port construction are met.

The utility model relates to the technical field of tractor equipment, and discloses a width-adjustable amplitude-variable crawler-type tractor which comprises a box body, an upper crawler belt structure and a lower crawler belt structure, an operation panel is arranged on the front face of the box body, a rectangular plate is fixedly installed on the front face of the box body, an adjusting mechanism is arranged in the box body, and the upper crawler belt structure and the lower crawler belt structure are arranged in the box body. A limiting mechanism is arranged in the rectangular plate, the distance between the upper crawler belt structure and the lower crawler belt structure can be adjusted, traction and transportation of to-be-dragged objects of various thicknesses are facilitated, and when the upper crawler belt structure and the lower crawler belt structure are abraded for a long time and clamping force is insufficient, the clamping force is not enough. The upper crawler belt structure and the lower crawler belt structure can still keep stable clamping force under the action of the rolling wheels, slipping is avoided, stability is kept, the limiting column A and the limiting column B can be adjusted according to adjustment of the upper crawler belt structure, a traction object is limited up and down, the distance between the two limiting columns C is adjustable, and the space between the two limiting columns C is adjustable. Limiting can be achieved by adjusting according to the width of an object to be dragged.

The invention belongs to the technical field of aircraft atmospheric data measurement equipment, and particularly relates to an intelligent towing cone system for test flight calibration, which is used for calibrating flight parameters such as height and speed output by an aircraft atmospheric data system and providing a parameter correction basis. The dragging cone system comprises a static pressure tube, a tail cone body, an optical fiber sensor, a dragging structure and an optical fiber sensing analyzer. According to the invention, the length of the pressure gas circuit of the towed cone system can be shortened, the problem of pressure delay in the existing towed cone product can be solved, the real-time continuous measurement of the pressure of the towed cone system is realized, the dynamic flight calibration of atmospheric parameters is realized, and the test flight calibration efficiency is improved.

The invention belongs to the field of ocean engineering and floating body structures, discloses a modularized movable variable-structure floating body platform and an operation method thereof, and is suitable for multi-scene application of short-term or temporary operation on the sea. In the towing process of the platform, chain type arrangement is adopted, all floating body units are connected through spherical hinge connectors, water resistance is effectively reduced, towing efficiency is improved, and safe transfer is achieved through a tugboat and an auxiliary boat. After the platform arrives at a target area, the platform flexibly adjusts the floating body units through the tugboats, the auxiliary boats, the mechanical arms and the connecting rods, chain type arrangement is changed into an array type structure, stable multi-column arrangement is formed, and different operation requirements are met. Due to the modular design, the platform has high expansibility and is convenient to maintain and recombine. The marine floating body platform is flexible, low in cost and environmentally friendly, has high wind wave resistance and wide application prospects, and is particularly suitable for various temporary marine operations such as marine monitoring, equipment installation and marine emergency.

The invention relates to a road paver (1) comprising a towing vehicle (2), at least one drawbar (4), a screed assembly (3) which is attached to a towing point (5) of the towing vehicle (2) via the at least one drawbar (4), a leveling cylinder (8) which is configured to adjust a position, in particular a height, of the towing point (5), a screed lifting cylinder (10) which is configured to adjust a contact pressure of the screed assembly (3), a first measuring device (59) which is configured to determine a screed height (55) of the screed assembly (3), a second measuring device (61) which is configured to determine an angle of attack (14) of the screed assembly (3), and a control device (50) which is configured to control the leveling cylinder (8) and the screed lifting cylinder (10).The invention further relates to a method for controlling the position of a plank assembly (3) and the use of a control device (50) for controlling an angle of attack (14) and a plank height (55) of a plank assembly (3).

A relative angle detection device for a combination vehicle, the relative angle detection device being used in the combination vehicle in which a towing vehicle and a towed vehicle are connected by a towing-side connecting member and a towed-side connecting member. The relative angle detection device includes an imaging device that captures an image of one of the towing vehicle and the towed vehicle from the other, a radiation device that emits marker light to a position where the image is to be captured by the imaging device, and an image analysis device that analyzes the image captured by the imaging device to detect a relative angle of the towed vehicle with respect to the towing vehicle.

The invention relates to a towed towed buoy array positioning device and method. The towed towed buoy array positioning device comprises a towed mother ship, and a deck unit is fixedly installed on the towed mother ship; the system further comprises a plurality of dragging buoys which are connected in series through ropes and form a dragging buoy array, the dragging buoy located at the foremost end is connected with the dragging mother ship through the rope, and the whole dragging buoy array is dragged by the dragging mother ship on the water surface to sail. The dragging buoy located at the tail end is arranged in a transverse offset mode, complex installation and calibration are not needed before use, and laying and recycling are convenient; the acoustic measurement sensor is always kept far away from a mother ship and is less interfered by ship body noise, so that the acoustic positioning calculation precision is greatly improved; according to the device, accurate positioning of deep towing is achieved based on the spatial distance intersection positioning principle, the base line of the acoustic measurement sensor array is long, the accuracy advantage of long base line positioning is achieved, no positioning tracking ship is arranged in the method, and compared with a double-ship positioning method, the manpower and material resource cost is reduced through the method.

A steerable towing hook device includes a towing ball body and a towing arm. The towing ball body includes a towing ball and a towing ball mount. The towing arm includes a hitch arm and a fixed arm, and the fixed arm is provided with a square steel configured to connect to a vehicle receiver. The towing ball mount is fixedly connected to an outer back of the hitch arm. The hitch arm is provided with a moving-steering device configured to move and steer the towing ball mount, and the hitch arm is snap-fitted the fixed arm through the device for moving and steering the towing ball mount. A steerable towing hook device with a rational structure and strong practicality enables the towing ball body to move back and forth to steer, adjusts a position of the towing hook flexibly, is convenient to use, and improves work efficiency.

The invention discloses a compressor unit of a compressor station, a control method of the compressor unit, a medium and a program product, relates to the technical field of compressors, and aims to solve the problem of resource waste during test dragging of the compressor unit of the compressor station. The compressor unit of the compressor station comprises a compressor; an inlet valve; an outlet valve; one end of the inlet bypass pipeline is connected to one side of the inlet valve, and the other end of the inlet bypass pipeline is connected to the other side of the inlet valve; an inlet bypass valve is arranged on the inlet bypass pipeline; after the purging operation included in the warm-up mode is executed, the inlet bypass valve is controlled to be opened, the inlet valve is controlled to be closed, and the outlet valve is controlled to be closed, so that the compression pipeline is inflated through the inlet bypass valve; the compression pipeline is a pipeline between the inlet valve and the outlet valve; under the condition that the pressure of the compression pipeline reaches a first set pressure value, the warm-up operation included in the warm-up mode is executed; the first set pressure value is lower than a second set pressure value corresponding to the compression pipeline in the starting mode.

The invention relates to the technical field of computational fluid mechanics, in particular to a method for calculating the blocking effect of an underwater vehicle towing tank, and the method comprises the steps: building an underwater vehicle physical model; defining each boundary condition of the CFD numerical calculation domain, and solving the total resistance and each resistance component of the underwater vehicle based on the calculation domain grid and the configured numerical calculation condition; and post-processing the total resistance and each resistance component to obtain a calculation numerical result of the underwater vehicle under different blocking ratio working conditions. According to the method, by verifying the independence of the grids, the appropriate number of the grids is determined, and the calculation precision and efficiency are guaranteed.

The utility model relates to the technical field of mariculture, in particular to an independent lifting aquaculture net cage convenient to tow. An independent lifting aquaculture net cage convenient to tow comprises at least one aquaculture net cage module, each aquaculture net cage module comprises a buoyancy truss, at least two net cage frame bodies and a plurality of pile legs, and each buoyancy truss comprises a plurality of first buoyancy frame bodies and at least one second buoyancy frame body; the multiple first buoyancy frame bodies are connected end to end to define a closed structure with an inner space. And the second buoyancy frame body is connected between the two oppositely arranged first buoyancy frame bodies. According to the independent lifting culture net cage convenient to tow, the towing efficiency and the net cage installation efficiency at the designated position are effectively improved, the net cage frame body can independently ascend and descend, operation and maintenance operation are convenient, and the problems that in the prior art, the net cage towing efficiency is low, and the net cage installation efficiency is low are solved; and a certain part of cultured objects in the net cage cannot be independently operated.

This invention provides a reciprocating traction system, comprising two sets of longitudinal double-line reciprocating traction systems and one set of horizontal double-line reciprocating traction systems mounted on one side of an anchorage; the two longitudinal double-line reciprocating traction systems are respectively mounted on the upstream and downstream sides, and the horizontal double-line reciprocating traction system is connected to one end of the two longitudinal double-line reciprocating traction systems; the horizontal double-line reciprocating traction system includes a first towing track, a second towing track, a first horizontal traction mechanism, a second horizontal traction mechanism, and a horizontal traction machine; the first and second towing tracks are staggered; this invention can achieve the turning of the main cable strands without the need for a tower crane, reducing the construction period and labor costs associated with tower cranes, and the invention has low tonnage requirements for the horizontal traction machine of the main cable strands, which can reduce equipment investment costs; the method of this invention can achieve simultaneous turning and traction of two main cable strands, improving traction efficiency.

The present invention belongs to the field of cable technology, especially a high-voltage power cable, and the following scheme is proposed, including a cable body, the cable body is composed of a wire core, a shielding sleeve, an insulating sleeve, a heat-insulating sleeve and a protective sleeve, and a plurality of support plates are arranged between the outer wall of the wire core and the inner wall of the shielding sleeve, the cross-section of the support plate is wavy, the support plate is made of elastic insulating material, the gap between the wire core and the shielding sleeve is filled with insulating cotton, the outer wall of the shielding sleeve is bonded to the inner wall of the insulating sleeve, the inner wall of the heat-insulating sleeve and the insulating sleeve are filled with pressure-resistant cotton, the outer wall of the heat-insulating sleeve is bonded to the inner wall of the protective sleeve, and the outer wall of the protective sleeve is provided with a plurality of anti-skid grooves. In the present invention, the friction between the ground and the cable can be reduced by the ball bearing, so as to facilitate the protection of the cable and prevent the cable skin from being damaged due to the friction between the cable and the ground during the dragging process.

The invention relates to the technical field of computers, discloses a method and a device for determining an overnight flight dragging plan, and aims to solve the problems of low efficiency, high labor cost and relatively poor accuracy of an existing method. The scheme mainly comprises the following steps of: determining flight information of each overnight flight, agency company information of each dragging agency company and machine position information of each available machine position; generating an initial dragging plan set comprising a plurality of dragging plans, determining dragging plan information of each dragging plan, and defining a dragging identifier; constructing a target function which takes the dragging identifier as a decision variable and takes the bridge approaching rate as an optimization object, and constructing constraint conditions according to the flight information, the agent company information, the aircraft position information and the dragging plan information; and solving the target function to obtain the value of each dragging identifier, and generating a final dragging plan set needing to be executed. The method improves the accuracy of the dragging plan, improves the determination efficiency, reduces the labor cost, and is especially suitable for large airports.

The invention relates to the technical field of test conveying, in particular to a conveying device for cable festoon test equipment, which comprises an assembly cross beam, a horizontally arranged bottom guide rod is arranged below the assembly cross beam, and the outer side of the bottom guide rod is movably sleeved with a plurality of external assembly frames. According to the conveying device for the cable festoon test equipment, the electric trolley is connected with one end of a cable for dragging, the cable is hoisted and supported through the external assembly frame on the outer side of the bottom guide rod, the hoisting state of the cable is simulated, and operation and control are very convenient; the electric control type regulation and control locking device is movably assembled in the bottom storage adjustment frame at the lower end of the electric trolley, storage and limiting adjustment can be conducted on the external assembly frame, the adjacent positions of the external assembly frame at different positions can be changed through the electric trolley, manual adjustment is not needed, operation is easy and convenient, and control is accurate.

[Problem] To facilitate passing of a probe through two or more guide plates. [Solution] Provided is a probe passing method for a probe card 1 in which two guide plates 301, 302 are spaced apart from each other, and a probe 50 is passed through two guide holes 311, 312 respectively formed in the two guide plates 301, 302, the method comprising: a step for passing a towing rod 60 through the two guide holes 311, 312; a step for separably linking the tip-end of the towing rod 60, having passed through the two guide holes 311, 312, to a linking portion 510 provided at the tip-end of the probe 50; a step for pulling the towing rod 60 out of the receiving two guide holes 311, 312, and passing the probe 50 through the two guide holes 311, 312; and a step for separating the towing rod 60, having been pulled out of the two guide holes 311, 312, from the probe 50.

The invention discloses a towing operation system and method. The system comprises a towing winch and an anti-loosening device which are arranged on a lower deck in a cabin, and a cable guide device, shark pincers, a stern limiting pin, a height limiting device and a swing stopping device which are arranged on an open-air upper deck; a steel cable and a rope guider are arranged on the towing winch; the anti-loosening device is used for enabling the steel cable to always keep certain tension under the condition that the cable end is not loaded; the cable guiding device comprises a pulley, a pressing wheel and a protective cover, the protective cover covers the cable outlet hole and the pulley, and during operation, the steel cable upwards penetrates out of the cable outlet hole, then bypasses the top of the pulley downwards, penetrates out of the rear side hatch and then bypasses the bottom of the pressing wheel; the height limiting device is used for limiting the height of the point position of the steel cable at the shark pincers; and the oscillation stopping device is used for stopping oscillation of the steel cable. According to the system, the height of a steel cable outlet point can be lowered, water can be prevented from leaking into a cabin from waves on an upper deck, a cable outlet hole is protected against wind and rain, the steel cable can be prevented from being disordered and being scratched with a stern A-shaped frame, and a buoy or a towed ship can be safely replaced under the condition that the steel cable is not unloaded.

A method for controlling a vehicle train, having a towing vehicle and at least one trailer vehicle. The towing vehicle includes a continuous deceleration device for performing a continuous deceleration. The method includes the steps: determining a trailer mass of the trailer vehicle in the prevailing vehicle configuration of the vehicle train; determining a towing vehicle trailer mass of the towing vehicle in the prevailing vehicle configuration; determining a mass ratio of the prevailing vehicle configuration based on the trailer mass and the towing vehicle mass; and limiting a maximum permissible continuous deceleration power of the continuous deceleration device based on the mass ratio. A driver assistance system is configured to perform the method. A commercial vehicle includes the driver assistance system. A computer program product is configured to perform the method.

The invention relates to the technical field of detection towed body release, in particular to an emergency release device of an underwater towing system. The underwater towing system comprises a depth-keeping towed body and a detection towed body, the detection towed body and the depth-keeping towed body are connected through a photoelectric composite cable, the photoelectric composite cable is composed of a towing cable and a communication cable, and the communication cable is connected with a detection instrument in the detection towed body through a plug connector male head and a plug connector female head which are mutually plugged; the emergency release device is arranged at one end in the detection towed body and comprises a towing cable release mechanism and a communication cable release mechanism; the driving piece drives the trailing cable releasing mechanism to be separated from the trailing cable and drives the communication cable releasing mechanism to be separated from the communication cable; the emergency release device is suitable for releasing the detection towed body in an underwater towing system, depends on a mechanical transmission structure, is stable and reliable, and can realize autonomous separation of the detection towed body when an emergency situation or communication loss occurs, so that the safety and the recovery rate of the detection towed body are improved, and the potential heavy loss is reduced.

The invention discloses a semitrailer battery energy transmission system and method based on an electric traction vehicle, belongs to the technical field of battery energy transmission, and aims to solve the problems that in the prior art, energy supply for a semitrailer is inconvenient, the actual transportation effect of the semitrailer is affected, and the transportation cost is increased. The system comprises an electric tractor and a semitrailer, the electric tractor is provided with an optical coupler, the electric tractor is provided with a traction seat and a first battery, the optical coupler is electrically connected with a control device, an ECU control unit and a vehicle end interface, the ECU control unit is electrically connected with a display, and the control device is provided with a plurality of control assemblies; the second battery is charged through the first battery, so that energy supply for the semitrailer is facilitated, the problem of insufficient energy of the semitrailer can be effectively solved, the transportation problem caused by insufficient energy of the semitrailer in the driving process is avoided, the logistics transportation efficiency is improved, and the logistics cost is reduced.