910 results about "Traction unit" patented technology

A system for warning drivers of the movements semi-tractor and trailer vehicles of the semi-tractor's intended course, and warning drivers of other vehicles around the semi-tractor of the course and intended movement of the semi-tractor. An example includes a closed circuit video display system including cameras mounted at the front corners of the semi-tractor, cameras mounted at the rear of the trailer, and cameras mounted from a central area of the semi-tractor trailer. The system also uses a written message display system having display modules that display messages to vehicles near the semi-tractor. The displays can be used to present various pre-programmed messages or messages created by the driver of the semi-tractor through a message input interface, allowing the driver of the semi-tractor to provide customized massages to other nearby drivers.

The invention relates to an unmanned tractor operation path tracking and machine tool cooperative control system and method, and the system obtains the position and posture of a tractor, machine tool operation parameters and topographic information in real time through fusing the data of multi-source sensors, such as GNSS positioning and laser radar topographic perception. A multi-objective optimization function including a path tracking error, an operation precision error and a ground vibration excitation amount is constructed, and a particle swarm-genetic algorithm (PSO-GA) hybrid optimization algorithm is introduced for result optimization, so that cooperative control of tractor unit operation parameters such as a steering angle, a vehicle speed and a machine tool hydraulic parameter is realized. According to the method, in the operation of the unmanned tractor in the hilly terrain, the path tracking error is effectively reduced, the operation uniformity is improved, the influence of terrain factors on the operation is reduced, and the operation efficiency and the equipment durability under complex working conditions are remarkably improved.

The invention relates to the technical field of rail transit automatic driving, and particularly discloses a rail transit train automatic driving control method, which is characterized in that a vehicle-mounted control center cooperates with a signal system, a traction unit and a braking system, and centimeter-level real-time positioning is realized by adopting extended Kalman filtering and fusing satellite positioning, an odometer and trackside beacon data; the parking precision of the platform is controlled based on a graded braking strategy (coasting-common-precise braking) and pulse type terminal point fine adjustment; the method dynamically adapts to line condition changes in combination with feedforward-feedback composite speed control, and establishes a multi-level safety monitoring network (obstacle detection / overspeed protection / vehicle door linkage) to realize full-process closed-loop control, and finally, high-precision, high-safety and high-coordination operation under unmanned driving is achieved.

A system for controlling a vehicle combination comprising a tractor unit and at least one trailing unit is disclosed. The system has a target generator to determine a virtual control input for the vehicle combination based on a reference input for the vehicle combination. A power manager determines a power allocation input for the vehicle combination based on the reference input and a power capability of one or more units of the vehicle combination. A combination control allocator determines a control input for the vehicle combination based on the power allocation input and the virtual control input.

The invention discloses an anti-folding brake control method for a new energy tractor and a trailer, and belongs to the technical field of new energy vehicle braking. The method specifically comprises the steps that when braking is light braking, a tractor only starts electric braking, and a trailer starts slight air braking; when the braking is heavier braking, except for starting electric braking, all pneumatic brakes of the tractor provide corresponding braking air pressure according to calibration parameters, and the trailer provides corresponding pneumatic braking air pressure according to loads; when the braking is emergency braking, different braking air pressures are provided for each pneumatic brake of the tractor and the trailer according to pre-calibrated parameters, and then automatic adjustment is carried out according to wheel speed signals of all vehicles and signals fed back by a vehicle body stabilizing system. The braking force redistribution method is simple and is not limited by whether the trailer is provided with a power battery or not, the braking stability of the vehicle can be guaranteed, the kinetic energy of the vehicle can be recycled to the maximum extent, and the economical efficiency of the vehicle is improved.

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.

The invention discloses a vehicle power control method and device, electronic equipment, a storage medium and a vehicle, and relates to the field of vehicle control, and the vehicle power control method comprises the steps that a combination of a tractor is matched based on an electric drive trailer, and a vehicle-mounted power source comprises an engine and a motor; the whole vehicle torque is output based on power output coupling of an engine and a motor; acquiring control state and vehicle state information; according to the control state and the vehicle state information, torque demand information is generated; the information of the torque demand comprises torque demand information of the torque direction and the torque size of the driving or braking working condition; obtaining torque capacity information of the whole vehicle; the whole vehicle torque capability information comprises torque capability information of an engine and a motor; acquiring information of a torque economy strategy based on the torque capabilities of the engine and the motor; and based on the torque capacity of the engine and the motor and the torque economy strategy, the whole vehicle torque output state is controlled to meet the torque requirement.

A commercial vehicle having various GVWR configurations with a vehicle body with two or more axles, and a cab that does not pivot relative to the vehicle body, and a battery-electric-powered or hydrogen-electric-powered propulsion system. The vehicle has a center of gravity that is substantially lower, and a track width which is substantially narrower, than an articulating tractor-trailer combination with a trailer size comparable to the vehicle body of the present invention, providing substantially increased stability, and with all axles preferably being steerable E-axles, substantially improving the turning and trailing of the vehicle. Additional attributes are improved safety, increased payload weight and cubic capacity, higher productivity and lower maintenance costs. Many other advantages flow from this vehicle design.

The present disclosure relates to a method for determining a tractor longitudinal force threshold(FLTRret,threshold)for a tractor longitudinal retardation force(FLTRret)that can be imparted on a tractor of a vehicle combination including the tractor and a trailer for retarding the vehicle combination. The trailer has a trailer longitudinal extension in a trailer longitudinal direction (LTL), a trailer lateral extension in a trailer lateral direction (TTL) and a trailer vertical extension in a trailer vertical direction (VTL), and the tractor has a tractor longitudinal extension in a tractor longitudinal direction (LTR), a tractor lateral extension in a tractor lateral direction (TTR) and a tractor vertical extension in a tractor vertical direction (VTR ), wherein the tractor longitudinal retardation force(FLTRret)extends in a direction parallel to a tractor longitudinal direction (TTR).

The invention relates to a commercial vehicle (3) comprising a tractor unit (4) and a semi-trailer (5), wherein the tractor unit (4) has cameras, a satellite navigation system, side mirrors (7) and / or mirror replacement cameras (7) having a first field of view (B1), wherein a radar sensor (8) is arranged at the rear of the tractor unit (4) such that it detects a second field of view (B2) under the semi-trailer (5) or trailer, which includes an area of ​​shadowing (A) by the semi-trailer (5) lying outside the first field of view (B1), wherein the tractor unit (4) further comprises a lane change assistance system configured to monitor areas next to, behind and to the side of the commercial vehicle (3) for other vehicles (6.1 to 6.4), to determine the position, speed and acceleration of detected vehicles (6.1 to 6.4) and to predict when approaching vehicles (6.1 to 6.4) will4) are located next to or near the commercial vehicle (3), when one of the vehicles (6.1 to 6.4) enters an area critical for a lane change of the commercial vehicle (3), to issue a warning in the commercial vehicle (3), to increase a warning level of the warning issued to the driver when a direction indicator (10) of the commercial vehicle (3) is switched on, in this case then, if the vehicle (6.1 to 6.4) decelerates, to withdraw the warning or reduce the warning level, and otherwise to maintain the warning.

The invention relates to a baby basket (1) for carrying babies, comprising a receptacle (2) for receiving the baby, a frame (3), and a spreading mechanism (4) that can spread the frame (3) and the receptacle (2) apart from one another when the frame (3) is in use. Furthermore, the baby basket (1) comprises at least one traction unit (12) that can generate a tensile force between the frame (3) and the receptacle (2) when the frame (3) is in use.

The invention discloses a mountain slope drilling device and a drilling method thereof, and relates to the technical field of mountain slope drilling. The mountain slope drilling device comprises a vehicle body, a drilling assembly and a traction assembly, the vehicle body is used for moving on the mountain slope, the drilling assembly and the traction assembly are arranged at the two ends, in the first direction, of the vehicle body correspondingly, and the traction assembly comprises a traction unit and a guide frame; the traction unit is used for collecting or releasing a traction rope, the guide frame corresponds to the traction unit and is arranged on the side, away from the vehicle body, of the traction unit, the traction rope is used for penetrating through the guide frame, and the other end of the traction rope is used for being anchored to the top of a mountain slope. The mountain side slope drilling device can solve the problem that drilling operation cannot be carried out on a high and steep side slope with the height higher than 15 degrees and lower than 45 degrees through drilling equipment, is suitable for drilling operation of the mountain side slope, and improves the working efficiency of side slope drilling under the condition that construction safety is guaranteed.

The invention discloses a thin-wall pipe fitting bending forming device and method, and belongs to the technical field of pipe fitting forming. The thin-wall pipe fitting bending forming device comprises a rack, a lower die is arranged on a workbench of the rack, a plurality of lower forming cavities are formed in the lower die, and an upper die matched with the lower die is arranged above the workbench; a supporting mechanism is arranged on the workbench and comprises a first sliding seat, and supporting units corresponding to the lower forming cavities one to one are arranged on the first sliding seat; a traction mechanism for pulling the pipe blank is arranged on the workbench, the traction mechanism comprises a second sliding seat, and traction units in one-to-one correspondence with the lower forming cavities are arranged on the second sliding seat; the supporting unit and the traction unit are located at the feeding end and the discharging end of the lower forming cavity correspondingly. By means of the thin-wall pipe fitting bending forming device and method, the problems that when an existing forming device conducts bending forming on a thin-wall pipe fitting, the supporting effect is poor, and the pipe fitting forming quality and forming efficiency are affected can be solved.

The present disclosure aims to provide a hitch assembly comprising a towing module, connection module, and locking unit. The towing module includes a towing head for connecting to a towed object and a main body having a first engagement portion on its peripheral surface. The connection module includes a connection segment for attaching to a traction vehicle and an accommodation chamber having a second engagement portion. The main body is receivable in the accommodation chamber and movable from a first position to a second position within the accommodation chamber. In the first position, the first engagement portion engages with the second engagement portion to prevent disengagement of the towing module from the accommodation space. In the second position, the first engagement portion is disengaged from the second engagement portion to allow axial withdrawal of the towing module along its longitudinal axis. The locking unit restricts movement of the main body from the first position toward the second position. This hitch assembly demonstrates high structural strength and extended service life.

Motor vehicle trailers (14) for events including: a chassis with a coupling device for a tractor (12); a frame structure surrounding an interior (22) of the motor vehicle trailer (14), wherein the frame structure is arranged on the chassis; wherein at least two separate compartments are created in the interior of the motor vehicle trailer (14), and at least one of the rooms is designed as a sanitary room (18) with a toilet (20).

The invention relates to the technical field of welded pipe welding, in particular to self-positioning butt-joint welded pipe welding equipment and method.The self-positioning butt-joint welded pipe welding equipment comprises a positioning base, a plurality of adjusting motors are arranged in the positioning base, the adjusting motors are fixedly connected with adjusting shafts, one side of the positioning base is fixedly connected with a fixed base, and the other side of the positioning base is fixedly connected with a movable base; the top of the fixed base is fixedly connected with a welding mechanical arm; the two ends of the positioning base are fixedly connected with traction units, and the top face of the positioning base is slidably connected with two butt joint units. In the initial state, the butt joint base is attached to the traction unit, and at the moment, the welded pipe is clamped through the clamping plate; then, a rotating disc can be rotated through a rotating shaft, an adjusting plate and a clamping plate are driven to rotate through rotation of the rotating disc, when the clamping plate rotates, the welded pipe can be driven to rotate, and when the welded pipe rotates, a V-shaped groove can be ground in the butt joint position through a grinding unit; and meanwhile, the V-shaped groove is welded through the welding mechanical arm.

The invention provides an intelligent oil pipe cleaning and separating operation line which comprises a feeding station, a detection station and a to-be-cleaned station which are arranged side by side, a detection device and a first offline conveying belt are arranged at the two ends of the detection station correspondingly, and an electromagnetic heating device and a cleaning station are arranged at one end of the to-be-cleaned station; the detection station and the to-be-cleaned station are respectively provided with a plurality of jacking traction units at intervals along a straight line, each jacking traction unit comprises a liftable traction wheel, the traction wheels abut against the lower end of the oil pipe to roll, and the problems of automatic cleaning and flaw detection of the oil drill pipe are solved.

The utility model relates to the technical field of environmental treatment, in particular to remediation equipment for soil pollution treatment. Comprising a traction vehicle head, a mounting frame, a conveying belt mechanism, a crushing box, a shovel plate, a ground breaking mechanism, a crushing mechanism, a plurality of second inclined plates and a plurality of nozzles; the mounting frame is mounted at the rear end of the traction vehicle head; the conveying belt mechanism is mounted on the mounting frame; the shovel plate is mounted at the bottom end of the mounting frame; the ground breaking mechanism is mounted on the mounting frame; the crushing box is connected with the mounting frame, and the crushing mechanism is mounted on the crushing box; the multiple second inclined plates are installed on the two sides of the inner wall of the smashing box correspondingly. And the multiple nozzles are all mounted on the inner wall of the crushing box. Through a series of working procedures of shoveling, crushing and repairing the soil, the finally repaired soil is discharged into the soil pit again, the whole working rhythm is compact and orderly, the working efficiency is high, and the uniform mixing work of the soil and the repairing liquid can be realized.

Perimeter devices, vehicles, including autonomous vehicles and human-controlled vehicles, UAVs, and related systems and methods are described. Perimeter devices respond to triggering events, such as vehicle-immobilizing events, GPS-based events, and environment-based events, to establish a perimeter adjacent a vehicle such that observers can visually detect the presence of a signal member, such as a warning triangle having a reflective surface. An example vehicle includes a tractor unit, a trailer connected to the tractor unit, a storage enclosure associated with the tractor unit, and a plurality of perimeter devices disposed in the chamber. Each perimeter device is adapted to deploy from the vehicle and establish a perimeter by the vehicle in response to a triggering event, such as parking of the vehicle in a location for which a perimeter must be established, impact of the vehicle with another object, rollover, or mechanical and / or electrical failure of the vehicle.

The invention relates to the technical field of steel sheet machining, and discloses an automatic steel sheet feeding mechanism for punching machine machining and a using method thereof.The automatic steel sheet feeding mechanism comprises a punching machine workbench used for fixedly installing a lower die, and leveling equipment used for leveling a to-be-machined steel sheet is arranged on one side of the punching machine workbench; the traction units are arranged between the punching machine workbench and the leveling equipment, the traction units are used for automatically guiding a first section of steel sheet plate conveyed out of the discharging end of the leveling equipment to the upper surface of the lower die, and the traction units are symmetrically arranged about the middle axial face of the steel sheet; according to the automatic feeding mechanism for the steel sheets machined by the punching machine, an existing automatic feeding mechanism for the steel sheets machined by the punching machine is improved, under the action of the designed traction unit and the designed moving unit, full-automatic operation that the head-end-section steel sheet plates enter the upper surface of the lower die is achieved, and the phenomenon that the steel sheets deviate or fail to feed when entering the lower portion of the punching machine for the first time and finally leaving the lower portion of the punching machine is prevented; and the feeding operation of the steel sheet plate material can be more accurately realized.

A semitrailer (110) is configured to be towed by a tractor (105) and comprises an electric drive motor (205) for providing a drive torque. A method (300) for controlling such an electric drive motor (205) comprises determining a tractive force acting on the semitrailer (110), a travel speed of the semitrailer (110), and an incline of a ground surface (140) of the semitrailer (110). Based on the tractive force, the incline, and the travel speed, it is determined that the semitrailer (110) is to be started uphill, and the drive motor (205) is controlled to assist the start by providing a drive torque.

The invention discloses a control method for stable operation of a heavy-load combined train. The method is applied to the heavy-load combined train formed by connecting at least two traction locomotives and at least one dragged vehicle in series, and comprises the following steps: when the ramp type of the heavy-load combined train running on the current line is a preset type, before or simultaneously adjusting the working state of an air braking device to be a relieving state, adjusting the working state of the air braking device to be the relieving state; controlling the power braking device of the master control locomotive to increase the power braking force, and increasing the power braking force by the power braking device of the slave control locomotive; when the working state is adjusted to be a relieving state, the initial relieving moment is determined, when the accumulative relieving duration reaches the preset first duration, the power braking force of the power braking device of the master control locomotive is adjusted and reduced, and the power braking force of the power braking device of the slave control locomotive is adjusted and reduced; changes of hook pulling force and hook pressing force of the middle slave control locomotive are reduced, the longitudinal force of the train is controlled within an evaluation index range, and the running safety and stability of the train are improved.

A trailer brake control module (300a; 300b; 300c) for a towing vehicle (502) facilitating braking of a towed vehicle or trailer (504) includes a pressure supply port (P11), a trailer control pressure port (P22), a primary control port (P42) for receiving either directly and / or indirectly a control brake pressure for operating the trailer brake control module (300a; 300b; 300c). The primary control port (P42) receives the control brake pressure from a pneumatically operated pressure medium, a pneumatic control pressure line (308.1) provides alternative control brake pressure for operating the trailer brake control module (300a; 300b; 300c), wherein the pneumatic control pressure line (308.1) receives the alternative control brake pressure from an electronically operated pressure medium, and a relay valve (310) is activated using either the control brake pressure received at the primary control port (P42), or the alternative control brake pressure from the pneumatic control pressure line (308.1).

The invention relates to the technical field of slope treatment, in particular to an active stabilizing and reinforcing device for slope treatment, which comprises a main body unit, a bracket, a slurry supply hose arranged on the bracket, an anchor rod arranged on one side of the bracket, and a grouting pipe arranged on the slurry supply hose; the fixing mechanism is arranged on the anchor rod, meanwhile, the angle of the supporting frame is adjusted in cooperation with the supporting mechanism, stable guiding constraint is provided for the grouting pipe, meanwhile, by means of the synergistic effect of the winding mechanism of the traction unit and the traction mechanism, it can be guaranteed that a grout conveying channel is smooth, the flow speed is stable, and it is guaranteed that grout can be continuously and evenly filled into a drill hole; the anchor rods, grout and rock-soil bodies are ensured to form a stable composite reinforcing structure, the stability and efficiency of slope reinforcing operation are improved, the overall anti-sliding and anti-collapse capacity of a slope is further enhanced, the later-stage instability hidden danger caused by incomplete reinforcing is effectively reduced, and the service life of the slope reinforcing structure is prolonged.

The utility model discloses a kiln car transfer device for a wood heat treatment kiln, which comprises a kiln car transfer trolley arranged outside a kiln body, a plurality of universal walking wheels are arranged at the bottom of the kiln car transfer trolley, and an outer track which can be butted with a kiln car track inside the kiln body is arranged on the kiln car transfer trolley. A traction vehicle capable of walking on the outer rail is arranged on the outer rail, a traction gear is arranged in a vehicle body of the traction vehicle, a spur rack meshed with the traction gear is fixed to the kiln vehicle transfer vehicle, and a tooth skipping prevention mechanism for preventing tooth skipping in the meshing process of the traction gear and the spur rack is further arranged on the traction vehicle. According to the kiln car transfer device, the heavy-load kiln car can be conveniently fed into the kiln or moved out of the kiln without laying a fixed rail outside the kiln body, the movement of the kiln car transfer device outside the kiln body is not limited by the fixed rail, and one kiln car transfer device can meet the kiln car transfer operation requirements of a plurality of wood heat treatment kilns.

The utility model discloses a tunnel construction protection device, which belongs to the technical field of tunnel construction, and comprises a support unit and a frame structure, the support unit comprises a top support plate and a side support plate, the top support plate and the side support plate carry out omnibearing support protection on the inner wall of a tunnel, and in addition, an adjusting unit is arranged on the frame structure. The height of the top supporting plate can be adjusted through the adjusting unit so as to adapt to tunnels with different heights, the two sides of the frame structure are connected with the side supporting plates through the traction units, the traction units are used for guaranteeing the stability of the side supporting plates, and therefore the supporting and protecting effect on the inner side walls of the tunnels is improved; in addition, the longitudinal reinforcing ribs and the transverse reinforcing ribs are distributed on the inner wall of the top supporting plate and the inner wall of the side supporting plate, the supporting and protecting performance of the top supporting plate and the side supporting plate is improved, and the protecting effect of the protecting device is guaranteed.

The invention relates to a building integral translation device and a construction method, and relates to the technical field of building construction.The building integral translation device comprises a plurality of bearing parts arranged below a building at equal intervals, the bearing parts are provided with fixing assemblies used for being fixed to the building, and the two sides of each bearing part are each provided with a plurality of wheels; the system further comprises a balance part located on the front side of the translation direction of the building, the balance part is provided with a plurality of connecting rigging which are in one-to-one correspondence with the bearing parts and are parallel to one another, first inhaul cables are arranged between the connecting rigging and the ends of the corresponding bearing parts, and a traction vehicle is arranged on the front side of the translation direction of the balance part. Second inhaul cables are arranged between the multiple connecting riggings and a towing hook of the traction vehicle. According to the translation device, the balance part, the connecting rigging, the first inhaul cable and the second inhaul cable are arranged, so that vertical tension is formed between each bearing part and the balance part, the tension borne by each bearing part is equal, the translation process of a building is more stable, and the safety is better.

The invention is suitable for the technical field of path planning, and provides a path planning method and device, a traction trailer and a computer program product. The path planning method is applied to a traction trailer. The path planning method comprises the steps that the current position of a tractor is obtained, a starting point is determined based on the current position, sampling is carried out within a preset distance range from the starting point according to a preset distance step length and a transverse offset step length, sampling points are obtained, polynomial fitting is carried out based on the starting point and the sampling points, and an initial sampling path is obtained; determining the trailer position of the trailer when the tractor is located at each sampling point; based on the position of the trailer, the obstacle condition of the area where the traction trailer is located is determined, and based on the obstacle condition, a target path where the traction trailer does not collide is determined in the initial sampling path. According to the embodiment of the invention, the trailer can be prevented from colliding with an obstacle, and the driving safety is improved.

The utility model discloses a PP copper foil adhesive force testing device, and relates to the technical field of PP copper foil adhesive force testing. Comprising a placement unit, a detection unit, a traction unit and a display unit, the placing unit comprises a supporting column, a bearing supporting plate arranged at the top end of the supporting column, a rectangular groove formed in the top end of the bearing supporting plate and a pressing plate detachably arranged above the bearing supporting plate. A test notch matched with the rectangular groove is vertically formed in the pressing plate in a penetrating manner; the detection unit is used for measuring the peeling strength of the PP copper foil coating; the traction unit is used for separating the non-glued end of the PP copper foil test adhesive tape from the PP copper foil; and the display unit is used for displaying the stripping speed, the stripping time, the stripping distance and the plating layer stripping strength. According to the utility model, manual adhesive tape stripping is replaced by automatic adhesive tape stripping, so that the stability of stripping speed and stripping strength can be ensured, and the accuracy of a test result and the test efficiency are further improved.

The invention relates to the technical field of cables, in particular to a cable peeling method and device. The cable peeling method comprises the following steps: acquiring the thickness of an insulating sleeve of a cable unit; the first traction unit is controlled to drive the cable unit to move in the first direction until the first end of the cable unit reaches a first preset position, then the first cutting unit is controlled to cut a first notch in the insulation sleeve, and the second cutting unit is controlled to cut a second notch in the insulation sleeve; on the basis that the first cutting-off unit cuts to the first cutting depth and the second cutting-off unit cuts to the second cutting depth, the first cutting-off unit is controlled to move towards the second cutting-off unit until the distance between the first cutting-off unit and the second cutting-off unit reaches a first preset distance and then stops moving; the first traction unit is controlled to drive the cable unit to move by a second preset distance in the second direction, and peeling of the first end is completed; the cable peeling unit is applied to the cable peeling method. Therefore, the problem that the core wire may be cut when the insulating sheath on the cable is stripped is solved.