673 results about "Traction unit" patented technology

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.

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 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 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 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 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.

This invention relates to the field of tractor technology, and more particularly to a tractor applicable to multiple operating scenarios, comprising: a vehicle body, a control assembly, a traction connection assembly, a drive assembly, and a control assembly; the control assembly includes: a connector detachably connected to the vehicle body; an operating assembly rotatably mounted on the connector; a front wheel assembly rotatably mounted below the connector; and an adjustment assembly located below the operating assembly for switching between an integrated connection between the operating assembly and the vehicle body or an integrated connection between the operating assembly and the front wheel assembly; enabling the operating assembly to directly control the vehicle body or directly control the front wheel assembly; by changing the connection relationship between the operating assembly and the vehicle body or the front wheels through the adjustment assembly, the tractor can adapt to different working conditions, enabling multi-working-scenario applications of the tractor, and allowing the operator to flexibly adapt to different working conditions to achieve the optimal operating mode.

The invention relates to the technical field of commercial vehicles, in particular to a saddle capable of automatically adjusting a main suspension gap for an electric tractor. Through cooperation of the front-back displacement mechanism, the sliding rail, the sliding plate, the toothed plate, the VCU vehicle control unit, the CAN / Lin communication network unit and the main suspension distance sensor, the effect of automatically adjusting the main suspension gap is achieved, the main suspension distance sensor monitors gap data between main suspension bodies in real time, the gap data are transmitted to the VCU vehicle control unit through the CAN / Lin communication network unit, and the gap data are transmitted to the VCU vehicle control unit through the CAN / Lin communication network unit. The VCU vehicle control unit controls the double-shaft motor to start according to preset parameters and actual working conditions, the double-shaft motor drives the first gear to rotate, the first gear is meshed with the toothed plate to drive the sliding plate to move front and back along the sliding rail, then the saddle body is driven to move synchronously, automatic and accurate adjustment of the main suspension gap is achieved, and the requirement for matching of different transportation working conditions and main suspension is met; driving bumping vibration is reduced, the wind resistance coefficient is reduced, and the vehicle economical efficiency is improved.

This utility model discloses an anti-loosening fastening device for tractor units, belonging to the field of tractor unit technology. The anti-loosening fastening device includes a front connecting plate and a rear connecting plate. A movable combined arm is installed at the rear end of an adjusting frame, and a viscous damper is installed between the two movable combined arms. Hydraulic dampers are installed between the front and rear connecting plates and the adjusting frame. This utility model solves the problem that existing tractor unit fastening devices become loose due to vehicle vibrations, failing to maintain a stable working state. By connecting the hydraulic damper and the viscous damper, this utility model achieves a good connection between the front and rear connecting plates. During tractor turning, the front and rear connecting plates are subjected to tension and traction forces, causing movement. During this movement, the hydraulic damper and the viscous damper limit movement and reduce vibration, effectively achieving an anti-loosening effect.

The present application relates to asphalt pavement repair equipment technical field, especially in kind of asphalt pavement repair paste efficient paving device and use method, trailer frame is fixedly connected trailer hook through a plurality of tractor, in the trailer frame from front to back is sequentially provided with milling device, first compaction device, fixed tow device, bearing plate and second compaction device;Milling device is used to process diseased pavement, first compaction device is used to preliminary compaction asphalt pavement repair paste, fixed tow device is used to tow one side of asphalt pavement repair paste, and this side is fixed on one side of diseased pavement, the bearing plate is placed on the cutting asphalt pavement repair paste, and heating device is arranged on the bearing plate, heating device simultaneously heats asphalt pavement repair paste and diseased pavement, and second compaction device is used to final compaction asphalt pavement repair paste.The device of the present application can be used for automatic mechanization to carry out asphalt pavement repair paste paving, and more manpower is no longer needed to work, which greatly improves work efficiency.

The invention discloses a harmonic suppression method and system of a rail transit electric traction system. The system comprises a traction unit harmonic response acquisition module, a traction group construction and intra-group influence analysis module, a traction group collaborative behavior analysis module, a collaborative suppression strategy generation module and a suppression resource regulation and control module. The method comprises the following steps: dividing a plurality of traction units on the same train into traction groups, analyzing harmonic response information of the traction units on a traction group level to generate comprehensive harmonic influence characteristics, analyzing action results of the plurality of traction groups on a traction power supply section level, and judging whether a harmonic collaborative amplification or collaborative instability trend exists or not; and thus, a collaborative harmonic suppression strategy for the traction group or the traction unit is generated. Through differential regulation and control on harmonic suppression resources and in combination with feedback correction, dynamic adjustment of a harmonic suppression process is realized, and pertinence of harmonic suppression under a complex operation condition and operation stability of a traction power supply system are improved.

The utility model relates to a gas circuit hitching device for a tractor, which solves the problem that the universality of a gas circuit interface is poor when the tractor is hitched with a semitrailer at present. Comprising a bracket (1), a left partition wall three-way joint (2), a right partition wall three-way joint (3), a left yellow spiral pipe (4), a right yellow spiral pipe (5), a left red spiral pipe (6), a right red spiral pipe (7), a yellow cover palm type connector (8), a left quick connector connector (9), a right quick connector connector (10) and a red cover palm type connector (11). A left partition wall three-way joint (2) is fixed on a bracket (1), two ends of the left partition wall three-way joint (2) are connected with a left yellow spiral pipe (4) and a right yellow spiral pipe (5) through nuts of a pipeline, the left yellow spiral pipe (4) is in butt joint with a yellow cover palm type connector (8), and the right yellow spiral pipe (5) is in butt joint with a left quick plug connector (9) to form a left side control pipeline. According to the utility model, semitrailers with two interface forms can be quickly connected, and the transportation efficiency is improved.

This articulated vehicle (10) comprises a tractor (20) and a trailer (30) that is towed by the tractor. A control device (70) is configured so as to perform an open-loop operation quantity calculation process, a closed-loop operation quantity calculation process, an operation process, and a correction process. The open-loop operation quantity calculation process is a process for calculating an open-loop operation quantity, which is an operation quantity for open-loop control in which a prescribed condition quantity of the articulated vehicle is a control quantity. The closed-loop operation quantity calculation process is a process for calculating a closed-loop operation quantity, which is an operation quantity for closed-loop control in which the prescribed condition quantity is a control quantity. The operation process is a process for operating an actuator of the tractor in accordance with both the open-loop operation quantity and the closed-loop operation quantity. The correction process is a process for correcting the open-loop operation quantity calculation process when the size of the operation quantity for the closed-loop control is greater than or equal to a prescribed size.

The utility model provides a roll-cutting machine. The roll-cutting machine comprises a supporting base, an unwinding unit, a whole material traction unit, a roll-cutting unit, a longitudinal material traction unit, a transverse cutting unit and a material collecting box, wherein the unwinding unit, the whole material traction unit, the roll-cutting unit, the longitudinal material traction unit and the transverse cutting unit are sequentially arranged on the supporting base from right to left, and the material collecting box is arranged under the transverse cutting unit. The hobbing unit comprises a first rack, a second rack, a hobbing shaft, a driving device, a driven bottom roller and a transmission device, wherein the first rack and the second rack are fixed to the supporting base, the hobbing shaft is detachably and rotationally installed on the first rack, the driving device drives the hobbing shaft to rotate, the driven bottom roller is rotationally installed on the second rack, and the transmission device is connected with the driving device and used for driving the driven bottom roller to rotate. A plurality of hobbing cutters are distributed on the hobbing shaft at equal intervals in the axial direction; the driven bottom roller is located under the hobbing shaft, the driven bottom roller and the hobbing shaft rotate reversely, and circumferential cutting grooves with the number not smaller than that of the hobbing cutters are distributed in the driven bottom roller at equal intervals in the axial direction. The slitting mill is low in manual participation degree, high in cutting efficiency and capable of cutting base materials with different widths and sizes.

The invention provides a factory-like rapid construction method for an underground long rigid pipeline, a plurality of underground factory units are planned and excavated along a pipeline line at intervals, each underground factory unit comprises an assembling unit and a traction unit, and the adjacent underground factory units are connected through a foundation pit; a travelling crane is arranged in the assembly unit, a traction system is arranged in the traction unit, an assembly jig frame is arranged in the foundation pit, and an underground factory greenhouse is installed above each underground factory unit and the foundation pit; the pipeline transport vehicle transports the pipeline sections into the assembling units, the travelling crane hoists the pipeline sections to the assembling jig frame, and all the pipeline sections are welded to form a pipeline with the designed length; the welded pipeline is driven by a traction system and assisted by a lifting type sliding support to move to a traction unit along the foundation pit; and then welding with a subsequent pipe section to form a continuous pipeline. The problems that underground long rigid pipelines are low in construction efficiency, installation precision and construction quality are solved.

The invention discloses a self-adaptive tension adjustment film-covered fabric conveying mechanism, and relates to the technical field of film-covered fabric conveying, the self-adaptive tension adjustment film-covered fabric conveying mechanism comprises a mounting seat, and the inner wall of the mounting seat is fixedly connected with a first guide roller and a second guide roller; and an axial tension sensor, a tension roller and a traction unit are mounted on the inner wall of the mounting seat and between the first guide roller and the second guide roller. By arranging the traction unit and the clamping unit, a motor drives a first threaded rod to rotate, the first threaded rod rotates to drive a tension roller to move downwards, meanwhile, the first threaded rod rotates to drive a second threaded rod to rotate, the second threaded rod rotates to drive a movable frame to slide, and meanwhile, a traction plate moves; the traction plate moves to the position below the first guide roller; at the moment, one end of the fabric is clamped on the traction plate by the clamping plate, then the tension roller and the traction plate are displaced and reset, and when the movable frame is displaced to one end of the movable groove, the clamping plate is automatically loosened, so that the fabric is conveniently and automatically connected to the conveying equipment.

The application discloses a pay-off mechanism and belongs to the technical field of pay-off vehicles, which comprises a positioning bottom plate, a supporting unit, a wire leading unit and a buffer unit are fixedly arranged on the positioning bottom plate, the buffer unit comprises two limiting plates fixedly arranged on the bottom plate, one of the limiting plates is movably provided with two wire guide wheels, the other limiting plate is provided with an anti-disengagement structure for preventing the cable from disengaging from the wire guide wheels, and a sliding groove is formed in the limiting plate, through the two limiting plates arranged on the bottom plate and the wire guide wheels movably arranged on the limiting plates, the cable can be wound on the two wire guide wheels when a worker leads the wire, when the traction vehicle suddenly changes speed, the spring connected between the sliding block and the bottom end of the sliding groove keeps the cable on the two wire guide wheels in a tense state, and the situation that the cable core inside the cable is damaged due to sudden stress change is avoided.

A vehicle platform for parking equipment, suitable for lifting and traversing applications, includes a lifting platform composed of a platform body and a traction assembly, and a traversing platform composed of a platform body and a traversing drive assembly. The platform body consists of a front cross plate, a rear cross plate, a first longitudinal plate, a second longitudinal plate, a first side beam, and a second side beam, all fastened together to form a hollow rectangular frame. A U-shaped component formed by a front stop bar, a first stop bar, and a second stop bar is installed on the upper plane of the frame, and a rear stop bar is installed at the rear end for stopping vehicles. The traction assembly consists of four sets, respectively located at the front and rear ends of the platform body near the outer side, including a load traction unit and a backup traction unit. The traversing drive assembly includes a traversing drive mechanism installed on the platform body and four sets of rollers whose lower contour rolls in contact with the ground guide rail. The advantages of this utility model are at least: significantly improving the convenience of entering and exiting vehicles; preventing wheel overruns; and ensuring that when the load traction chain breaks or loosens, the backup traction chain takes over to prevent overturning accidents.

1. The name of the design product: two-way swing traction seat (60T). 2. The use of the design product: for oil field drilling rig derrick moving, traction car and derrick equipment traction connection. 3. The design points of the design product: in the overall shape design. 4. The picture or photo that best indicates the design points: perspective view 1.

The application provides a polishing device for hot strong alloy steel round forgings, and belongs to the technical field of polishing of round forgings. The device comprises a constraint unit, the constraint unit comprises an assembly piece, a traction unit, a supporting unit and a constraint module, one side of each of the two supporting units and the central position are provided with a polishing unit, the lower part of the central polishing unit is provided with a traction module, and the traction module comprises a rod body Z, a wire connecting displacement table and a motor. The application solves the problem that the round forging must be constrained by a constraint part during polishing operation to limit the round forging from moving randomly. Generally, the constraint part is used to constrain the round forging from moving from one side, so that the part adhered to the constraint cannot be polished during polishing, the polishing process becomes complicated, the labor intensity is increased, the quality of the round forging is generally large, a large amount of labor is consumed when the round forging is moved to the polishing device, and the loading of the round forging is complex.

1. The name of the design product: side guard plate. 2. The use of the design product: used for the side guard plate of the bottom replacement electric traction vehicle battery replacement system. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses drying equipment for alumite hot stamping film production, which relates to the technical field of alumite hot stamping film production, is suitable for drying during alumite hot stamping film production and comprises a drying box. The guide roller is arranged on the outer surface of the drying box and is used for guiding; the traction unit is arranged in the drying box and is used for traction; the drying unit is arranged in the drying box and used for drying, and each guide roller comprises a driving assembly arranged in the drying box and a limiting assembly arranged on the outer surface of the drying box and used for limiting. According to the hot stamping film drying device, an alumite hot stamping film can be conveniently pulled to move in the horizontal direction through mutual cooperation of the hydraulic cylinder, the lifting plate, the driving motor, the driving roller, the spring column, the mounting plate and the limiting roller, and the alumite hot stamping film can be dried through mutual cooperation of the heating assembly, the air pump, the connecting pipe, the communicating pipe, the flow dividing box and the air outlet pipe; therefore, the functionality of the alumite hot stamping film drying device is improved.

The invention discloses a material detection device and method for a cleaning web curtain special for hot air, and belongs to the technical field of detection devices.The material detection device comprises a movable air duct module and a web curtain tension module, and the web curtain tension module is used for adjusting the tension direction and magnitude of the web curtain in the high-temperature state; the movable air duct module comprises a high-temperature air box assembly and an assembly box component, the assembly box component is slidably mounted in the high-temperature air box assembly and used for driving a web curtain to move, the web curtain tension module comprises a traction column assembly, and a plurality of traction units matched with web curtain holes are arranged in the traction column assembly. By arranging the movable air duct module and the web curtain tension module, testing can be carried out in different tension states in the detection process, the stress position and the tension of the web curtain assembly can be variably adjusted according to detection requirements, and the detection accuracy is improved. Therefore, creep deformation, aging and air permeability change of the web curtain assembly in a high-temperature state can be measured.

The utility model relates to the technical field of mica production, and discloses a calcining furnace transfer trolley for mica production, which comprises a furnace body trolley and a transfer system assembly, a calcining furnace is arranged on the furnace body trolley, the furnace body trolley is arranged on the transfer system assembly and is used for realizing the movement of a furnace body, and the transfer system assembly comprises a bottom layer trolley rail, a top layer trolley rail and a bottom layer trolley rail, the inner side distance of the bottom-layer track has two types of 3925mm and 5100mm, motors I are fixedly arranged on the two sides of the bottom-layer track, bottom-layer adjusting wheels are fixedly mounted at the output ends of the motors I, and the type of the bottom-layer adjusting wheels positioned on the bottom-layer track with the inner side distance of 3925mm is 3920mm. A transfer system assembly is designed, a bottom layer vehicle rail is utilized, a gear motor in the bottom layer vehicle rail is started to run, a small gear is driven, the small gear drives a large gear, the large gear drives a rotating disc upper rail, a traction vehicle rail is placed on the rotating disc upper rail, and then the traction vehicle rail is utilized to pull a furnace body trolley with a calcining furnace to move; and the effect of moving the furnace body is achieved.