203 results about "Tractive force" patented technology

This invention discloses a traction device and a maintenance culvert for a deep-sea submersible undergoing maintenance. The traction device includes: a first traction assembly disposed on both sides of the axis of the maintenance culvert and movable along the axis of the maintenance culvert; a traction rope for connecting the first traction assembly to both ends of the deep-sea submersible and driving the deep-sea submersible to move within the maintenance culvert via the first traction assembly; and a second traction assembly for providing traction force to both sides of the deep-sea submersible after it has been pulled into position by the first traction assembly, to prevent the deep-sea submersible from swaying. By applying force to both ends of the deep-sea submersible using the traction rope via the first traction assembly, the deep-sea submersible can be dragged within the maintenance culvert, thereby reaching a designated position within the maintenance culvert. Simultaneously, the second traction assembly provides traction force to both sides of the deep-sea submersible to prevent swaying and ensure stable positioning of the deep-sea submersible.

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 utility model discloses a kind of transport elevators of plastic master batch processing, including base, the bracket one and bracket two are fixedly connected with the base top portion. In the present application, after raw materials are put into placing bin, driving member drives transmission rod to rotate, transmission rod provides traction force for screw sleeve and placing bin by screwing with screw sleeve, placing bin goes up and drives sliding sleeve to slide along slide rod, until to the appropriate height after placing bin rises, telescopic member pushes sleeve to extend the direction of the inclined end of discharge pipe specified length, discharge pipe open end is erected to the feed end of next process, then placing bin discharge opening opens, raw materials are transferred to next process by the material guide channel formed by discharge pipe and sleeve, so that in the lifting stage of placing bin, the gravity center of elevator is always in middle position, and in the discharging stage, the amount of raw materials passing through discharge pipe and sleeve per unit time affects the gravity center offset, so as to improve the stability of plastic master batch processing transport elevator use.

The utility model discloses a textile yarn roll pay-off device, including the platen, the platen is installed seat board on interval, and the vertical connecting axle rod on seat board, and the axle rod one side sets up the pressure tile, and the ear seat is set up on the outer surface of pressure tile interval, and the ear seat is set up boost mechanism between the upper and vertical board, and the ear seat is set up thrust mechanism between the lower and vertical board, and the vertical board outside connects the pneumatic cylinder, and the telescopic rod of pneumatic cylinder connects thrust mechanism, with simple structure, reasonable in design, novel and unique thought, through the telescopic rod of pneumatic cylinder's extension and retraction, and utilize the lower spring to drive pressure tile to approach or away from yarn roll, and the lower spring is compressed short simultaneously, and the force of the lower spring pushes the pressure tile to be always attached to the yarn roll surface, guarantee yarn on yarn roll under the traction in the process of paying-off, and only pay-off will be pulled by traction, avoid yarn roll free rotation and pay-off, avoid the yarn roll free pay-off and knot of traction inertia.

The invention relates to a method and a control system for improving vehicle stability and traction on extremely low-friction or asymmetrical road surfaces. The method combines two coordinated actions within a recurring cycle: a steering-based lateral load-shift impulse (TACTOS-L), generated by small alternating steering angle pulses, and a torque-based drive impulse (TACTOS-M), applied through a controllable coupling. Both actions are activated sequentially or with partial overlap to increase available wheel friction and stabilise yaw behaviour. In a neutral phase, the steering returns to zero, the coupling opens, and vehicle dynamics parameters are measured to adapt the next cycle. Depending on the driving situation, the system prioritises traction improvement, braking stability or a hybrid mode. The method compensates for disadvantages of passive differentials, enhances acceleration and directional control on ice, snow or μ-split surfaces, and can be integrated into existing control units without additional hardware.

This utility model provides a static testing machine for airfoils, belonging to the technical field of static testing equipment. It solves the problem of inconvenient operation of existing static testing equipment. The airfoil static testing machine includes a base, a foundation, mounting components, a display, a suspension mechanism, a steel wire rope, a hand-operated hoist, a pull rope, a force gauge, a support, and a scale. In this utility model, when the pull rope is pulled, it moves the steel wire rope, thereby moving the force gauge and suspension mechanism downwards. During this process, the airfoil is subjected to the traction force of the steel wire rope, causing it to bend. Simultaneously, the force gauge continuously monitors the traction force of the steel wire rope on the suspension mechanism and feeds this force back to the display. When the force applied to the pull rope reaches a predetermined value, the airfoil bends to a certain extent and then stops bending. Thus, the magnitude of the traction force can be changed at any time according to testing needs without changing the load, making operation convenient.

This invention discloses a track laying lifting platform with multi-point balance positioning function, belonging to the field of track laying technology. Based on a lifting arm as the key structure for lifting the track, this invention utilizes a two-way linkage principle of gear meshing and guide cable traction. The lifting action of the lifting arm completes the angle switching action of the track body during the lifting process. Specifically, the transmission force of the gear meshing and the traction force of the guide cable can mutually restrict and link, ensuring that the track body remains horizontal during lifting. Under the single condition of the guide cable traction force, the angle switching process of the reversing sprocket is used to change the setting angle of the displacement sensor, thereby enabling the two actions to coordinate with each other in the overall process. Then, the displacement sensor and the limiting plate perform preliminary positioning of the track body. The specific purpose is to maintain stability during the lifting process and improve the positioning capability during track body docking, simplifying the difficulty of manual operation.

The utility model relates to the technical field of medical care instruments, and particularly relates to a bedridden patient leg rehabilitation tractor, which is convenient for adjusting the traction strength, performs traction on the patient's foot, is convenient to use, and improves practicality, comprising a mounting plate, a sliding frame, a leg clamping assembly, a traction strength adjusting assembly and a position adjusting part, the sliding frame is located above the mounting plate, the traction strength adjusting assembly is installed at the top of the mounting plate, and the leg clamping assembly is installed at the top of the sliding frame through the position adjusting part.

This invention relates to a fall-prevention bracket structure and a clothes drying rack. The fall-prevention bracket structure of this invention includes: a bracket body, which is pulled up and down by a traction rope; a folding frame with a slider slidably connected to the bracket body; and a fall-prevention mechanism disposed on the bracket body. One end of the fall-prevention mechanism is rotatably connected to the bracket body, and the other end is connected to the traction rope. When the traction rope is taut, the fall-prevention mechanism disengages from the slider; when the traction rope is slack or breaks, the fall-prevention mechanism abuts against and brakes the slider. The fall-prevention bracket structure of this invention, by setting a fall-prevention mechanism synchronously pulled by a traction rope, ensures that when the steel wire rope suddenly breaks or encounters resistance and slackens, the fall-prevention mechanism loses the traction force of the traction rope, thereby triggering braking, thus stopping the relative movement of the folding frame and the bracket body and preventing the bracket body from falling, improving safety performance.

1. Name of the product in this design: Off-road vehicle rear-wheel drive system. 2. Purpose of this design: To provide the core system for traction and hill-climbing ability of off-road vehicles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The application provides a three-axle tractor slip ratio error elimination method, device and electronic equipment, which comprises the following steps: determining the tractive force and slip ratio of different tractive force sample points of the three-axle tractor; dividing the different tractive force sample points of the three-axle tractor into multiple regions based on the tractive force of the different tractive force sample points of the three-axle tractor; determining the tractive force average value and slip ratio average value of the tractive force sample points in each region based on the tractive force and slip ratio of the different tractive force sample points of the three-axle tractor; fitting the tractive force average value and slip ratio average value based on the weighted least square method, determining the slip ratio error caused by the rolling radius of the three-axle tractor based on the fitting result, and correcting the rolling radius based on the slip ratio error to eliminate the slip ratio error. The application can eliminate the slip ratio calculation error of the three-axle tractor without increasing the hardware cost, and the calculated slip ratio is more accurate.

This utility model belongs to the field of tire processing technology, specifically relating to a high-saturation buoyancy agricultural tire. It includes a bead, sidewall, and crown. The crown consists of tread blocks and tread grooves. The tread blocks are composed of symmetrical patterns of varying areas, with a tread saturation of 50%-52%; the tread depth is 15mm-28mm; the tread groove angle is 16°-20°, and the groove bottom curvature is 3mm-6mm; the longitudinal arc Rc of the tread blocks is 16mm-30mm, the transverse arc Rd=Rc-2mm, and the connecting reverse arc Re is 90mm-130mm. This utility model increases the contact area through high saturation, reducing ground pressure and allowing the tire to "float" on the ground, minimizing damage to grasslands. Combined with shallow depth, symmetrical distribution, and optimized groove design, it improves traction, self-cleaning properties, and wear and puncture resistance, making it suitable for agricultural operations such as lawns and grasslands where surface protection is required.

Control unit for estimating the traction of a vehicle, comprising the following: a monitoring module that monitors wheel torque values; a determination module for determining maximum torque values ​​by obtaining and storing empirical data while driving on a surface, wherein the maximum torque values ​​are the wheel torque values ​​immediately before wheel slippage; a prediction module that predicts a traction threshold based on the maximum torque values, where the traction threshold is based on a stochastic model of the maximum torque values; and a control module that outputs a signal indicating the traction threshold.

This invention discloses a TBM three-rail transport vehicle transportation organization method, belonging to the field of transport vehicle organization, including the following steps: Track layout: arranging tracks and passing platforms, and constructing an assembly platform outside the tunnel; Three-wheeled friction wheel locomotive formation: forming various vehicles within each three-wheeled friction wheel locomotive train, and calculating the traction force, theoretical range, and braking force of the formation; Transport system layout: arranging a gantry crane and a temporary material storage area at the tunnel entrance, and setting up a single-track track and passing platforms inside the tunnel; Transport scheduling arrangement: setting up four stages of transport organization schemes according to the project progress: single-track single-train, double-train operation with turnouts at the tunnel entrance, one set of passing platforms inside the tunnel, and adding a second set of passing platforms inside the tunnel, and conducting transport scheduling arrangements. This invention uses the above-mentioned TBM three-rail transport vehicle transportation organization method to solve the technical problem of organizing rail transit transportation on steep gradients.

The utility model embodiment provides a kind of robot transfer tool car, it is related to material transport technical field.The tool car includes: mobile car, traction mechanism and robot support shaft;The traction mechanism is set on the mobile car, can be detachably connected with robot;The robot support shaft is set on the mobile car, for with the bottom of the robot detachable clamping connection;Wherein, the traction mechanism is through traction, so that the robot can be based on the robot support shaft between horizontal posture and vertical posture conversion;When the robot is in horizontal posture, it can be connected or separated with the robot support shaft;When the robot is in vertical posture, it can be driven under the mobile car, install or remove the goods shelf track.Utilize tool car to carry hoist portal, can effectively improve the safety of carrying process and improve the efficiency of carrying process.

A torque distribution method for distributed drive, the method comprising: when a driving mode of a vehicle is a traction recovery mode, determining a first target required torque of a target axle provided with an EDS, and a first target torque and an allowable maximum drive torque of each wheel corresponding to the target axle; when a first wheel of the target axle slips, calculating a second target required torque of the target axle; if a second wheel meets a preset condition, on the basis of the second target required torque of the target axle, the torque capacity of the EDS, the first target torque of each wheel corresponding to the target axle, and a maximum available electric-motor torque, calculating a second target torque of each wheel corresponding to the target axle; and determining a final target requested electric-motor torque of each wheel. The method can ensure that the tractive force is used to the greatest extent. In addition, the present invention further relates to a torque distribution control apparatus for distributed drive, and a vehicle, a computer-readable storage medium, a chip, a computer program product and a computer program.

This invention provides a rack rail clamping vehicle system that can be connected in series and has an adjustable number of operating drivers. The rack rail clamping vehicle is equipped with multiple hydraulic pumps, the outlets of which are connected together. The outlets of the hydraulic pumps are connected to the inlet ends of multiple hydraulic motors on the rack rail clamping vehicle via connecting pipes. When multiple rack rail clamping vehicles are used in series, the outlet of the hydraulic pump of one rack rail clamping vehicle is connected to the inlet ends of the hydraulic motors of all rack rail clamping vehicles. The connecting pipes are detachably connected to the inlet ends of the hydraulic motors. The advantages of this invention are: the parallel connection of multiple hydraulic pumps allows the vehicle to continue moving even if one pump fails, improving the stability of the vehicle during use; and the interconnected outlets of multiple hydraulic pumps driving multiple hydraulic motors ensure that the traction force of multiple vehicles is the same, further improving the stability when vehicles are used in series.

The present application relates to the technical field of rotating drum sail, and particularly relates to a magnetic suspension rotating drum sail, which comprises an inner supporting rod, an outer rotating drum, a traction unit, an axial supporting unit and a radial supporting unit; the axis of the inner supporting rod is vertical; the outer rotating drum is arranged outside the inner supporting rod and can rotate around the axis of the inner supporting rod; the traction unit is installed on the inner supporting rod and the outer rotating drum and can generate radial magnetic traction force on the outer rotating drum; the axial supporting unit is installed on the inner supporting rod and the outer rotating drum and can generate axial magnetic supporting force on the outer rotating drum; and the radial supporting unit is installed on the inner supporting rod and the outer rotating drum and can generate radial magnetic supporting force on the outer rotating drum.

39 #22754449v1<GHMATTERS Abstract An aerator for a turf surface has a traction control, an OPC bail, and an aeration bail capable of single handed operation. A controller automatically lowers a tine head to begin aerating at a start location marked when the aeration bail is closed and lifts the tine head to end aeration at an end location marked when the aeration bail is released. The controller further causes the tines that enter the turf surface at the start location to penetrate to a desired hole depth. The controller also automatically adjusts ground speed to maintain a desired hole spacing during an aeration pass, but permits the operator to speed up during a turnaround between passes with a steerable front wheel freewheeling to mitigate wheel scrubbing. A handle assembly having a spring counterbalance is height adjustable and automatically engages a parking brake when placed in an upright non-operating position. Abstract aeration at an end location marked when the aeration bail is released. The controller further 39 #22754449v1<GHMATTERS 20 26 20 47 44 18 J un 2 02 6 A b s t r a c t 2 0 2 6 2 0 4 7 4 4 1 8 J u n 2 0 2 6 a e r a t i o n a t a n e n d l o c a t i o n m a r k e d w h e n t h e a e r a t i o n b a i l i s r e l e a s e d . T h e c o n t r o l l e r f u r t h e r 3 9 # 2 2 7 5 4 4 4 9 v 1 < G H M A T T E R S

This utility model discloses a proton exchange membrane flattening fixture, including flattening rollers and a flattening frame on a fixture base plate. Roller supports are fixedly provided on all four periphery of the top surface of the fixture base plate, and horizontally arranged flattening rollers are provided on the roller supports. Multiple positioning columns for supporting the flattening frame are vertically provided on the top surface of the fixture base plate, and the flattening frame is located at the center of the multiple flattening rollers. The flattening frame has a frame structure, with a raised frame on the inner circumference of the top surface of the flattening frame. A pressure cap is placed on the flattening frame, and the annular flange at the bottom opening of the pressure cap is adapted to the structure of the raised frame. The pressure cap is fastened to the raised frame. It also includes four traction units for clamping the edges of the proton exchange membrane and providing tension. This utility model has the advantages of simple structure, low cost, convenient operation, good flattening effect of the proton exchange membrane, the ability to measure the traction force that keeps the proton exchange membrane in a flattened state, and ease of coating tests and flatness measurement.

The present application relates to the field of bridge construction, disclose a kind of double rotation surface swivel support with self-centering function, including middle seat plate, the top of the middle seat plate is fixedly connected with steering mechanism, the top of the middle seat plate is slidably connected with support mechanism, the steering mechanism includes rotating shaft, the bottom of the rotating shaft is fixedly connected with the top of middle seat plate, the inner wall of the middle seat plate is equipped with first wear plate groove, the inner wall of the middle seat plate is equipped with first sealing groove, the bottom of the middle seat plate is fixedly connected with boss, the outer surface of the rotating shaft is rotatably connected with upper spherical hinge. Bridge swivel is rotated by spherical surface rotating friction pair, when difficult to pull and jammed due to adverse working conditions, increase the pulling force to make the conical surface rotating pair enter the rotating working state, the design of conical surface can avoid the eccentricity caused by excessive pulling force, further strengthen the safety of swivel device, conical surface rotating pair cooperates with spherical surface rotating pair to ensure the smooth construction of bridge swivel.

This utility model discloses a wire feeding mechanism with an electromagnet brake, relating to the field of wire feeding equipment technology. It includes a passive wire roll for supplying binding wire to a binding gun and rotating it, and a locking member for locking the position of the passive wire roll. A follower disk is coaxially mounted on the passive wire roll, and multiple teeth are arranged in a circumferential array on the outer edge of the follower disk. An interlocking area is formed between any two adjacent teeth. The locking member has a stop bar capable of curved movement, the movement path of which intersects with the movement path of the interlocking area. This utility model, by designing a passive wire roll, relies solely on the traction force of the binding wire to achieve rotary feeding, simplifying the power system structure and reducing energy consumption. Unlike the coaxial locking method for passive wire rolls in the prior art, this application's outer contour locking method for passive wire rolls requires only a simple device to apply a small braking force to achieve braking.

This invention relates to the field of tire technology and discloses a hybrid all-terrain tire that improves off-road performance. The tread blocks on the tire tread interlock with each other in the circumferential and axial directions, and the tread grooves are evenly distributed, improving handling on off-road surfaces. The stepped tread edge design enhances traction while maintaining tire stability. The tread block chamfers improve tear resistance. Stone-expelling tread blocks accelerate the expulsion of stones. The staggered concave and convex shoulder profiles along the tire circumferential direction improve the tire's ability to get out of trouble on soft surfaces. The sidewall tread pattern enhances lateral grip and improves driving safety.

This invention provides a train operation method, medium, and equipment based on dual-loop adaptive sliding mode control, relating to the field of rail transit train operation control technology. The method involves an outer-loop displacement control subsystem controlling the train to track a target displacement; and an inner-loop speed control subsystem controlling the train to follow the speed curve generated by the displacement control subsystem at the desired speed. The output of the speed control subsystem is the resultant force of traction and braking. The control law is determined based on the integral sliding surface of the speed control subsystem and the train kinematic model. The additional resistance in the train kinematic model is simulated using an RBF neural network algorithm. The basic resistance parameters, total train mass, ideal weight matrix of the RBF neural network, and approximation error in the train kinematic model are determined using the adaptive control law of the integral sliding surface of the speed control subsystem. This method can solve the control problems of divergent speed tracking control deviations and low convergence efficiency under complex operating conditions.

This invention discloses a method, apparatus, equipment, and medium for dynamic optimization of transport load in a mining truck fleet. The method includes: assigning an initial transport load to each mining truck and having it travel along a preset operating route, while collecting real-time location and road condition information; dividing the operating route into segments and determining load limits; calculating the highest gearbox gear and actual traction force for each segment; determining the estimated speed for each segment based on a pre-stored three-dimensional mapping relationship; calculating the total length of effective segments and the distance ratio to the total length of the operating route; if the distance ratio is greater than or equal to a set ratio threshold, the load limit is used as the new initial transport load; otherwise, the load limit is adaptively lowered, and a new initial transport load is determined. This invention, through adaptive road condition calculation and iterative optimization of economic operating conditions, achieves the optimal load for each truck and updates iteratively for each truck, enabling the fleet to maintain efficient and economical operation while ensuring safety on inclines and declines, significantly improving overall operational efficiency.

The present application relates to the technical field of medical devices, in particular to a constant force type traction integrated precision regulation device, characterized in that: the device comprises a spring balancer, an intelligent tension meter and a traction guide frame, the spring balancer and the traction guide frame are detachably installed on a bed frame, the end of a pull rope of the spring balancer is connected with a fixed end of the intelligent tension meter, the outer diameter of the intelligent tension meter is greater than the inner diameter of a rope outlet of the spring balancer, the pull rope passes through the traction guide frame and makes a measurement end of the intelligent tension meter detachably connected with a traction bow. The present application is simple to operate, convenient and safe to use, can better ensure the stability of the traction process, can accurately adjust according to the actual needs of patients, and can realize precise regulation of the size of traction force and constant force type traction.

The application discloses a municipal bridge reinforcing structure and a bridge, and relates to the technical field of municipal bridge engineering; in view of the problem that the existing reinforcing structure is rigid and deadlocked, cannot adapt to dynamic deformation of the bridge, and is prone to stress concentration and fatigue damage, the application fixes a support and a platform on the outer wall of a pier, the platform is provided with a supporting mechanism and a stretching mechanism; the supporting mechanism is used for self-adaptive sliding adjustment and vertical damping of the bottom of the bridge body by cooperation of sliding rails, sliding blocks, multiple supporting frames and spring shock absorbers; the reinforcing assembly driven by the sliding block displacement linkage gear and rack automatically provides upward jacking auxiliary support; meanwhile, the steel cable group of the stretching mechanism converts buffer displacement into reverse multi-point traction force, and constructs a bidirectional stress balance network; in addition, multiple flexible anti-collision mechanisms are arranged on the outer side of the pier; the application effectively absorbs and resolves vibration and multidirectional impact caused by vehicle dynamic load, and comprehensively improves the safe bearing performance and service life of the municipal bridge.

A magnetic traction assembly is disclosed for a railcar mover that provides additional downforce to improve traction for a railcar mover when required. The magnetic traction assembly may comprise a frame, an actuator, and a magnetic element positioned underneath a railcar mover. The magnetic element may be lowered to a deployed position, where the magnetic element is positioned near the railroad rails such that the magnetic field from the magnetic element interacts with the railroad rail creating an attraction force that provides additional downforce to the railcar mover.

An autonomous cruise control (ACC) system that implements a corrective action strategy based on driving conditions for a vehicle is provided. The ACC system includes a drive unit, vehicle sensors and a controller. The controller: receives at least signal from at least one vehicle sensor indicative of a driving condition; determines, based on the signal, whether the at least one signal satisfies a threshold indicative of an unsafe driving condition; and performs the corrective action strategy based on the determination that at least one signal satisfies an unsafe driving condition. The corrective action strategy comprises at least one of: (i) increasing a preset distance to a target vehicle; (ii) communicating a message to a human machine interface indicative of an unsafe driving condition; (iii) communicating a signal to vehicle brakes to initiate a braking event; and (iv) communicating a signal to a traction control system to alter an acceleration setting.