43results about How to "Improve traction performance" patented technology

The invention provides a traction bed for bone fracture rehabilitation, which comprises a traction data acquisition unit, a traction compensation determination unit and a traction control unit, and is characterized in that the traction data acquisition unit acquires traction data of flexible traction when a patient uses the traction bed to perform bone fracture rehabilitation training; the traction compensation determining unit obtains a traction track of a patient during rehabilitation training, determines static traction force according to the traction track and traction zero position information of a traction bed during static continuous traction, and performs traction compensation on matching degree information of traction tension during rehabilitation training of the patient according to the static traction force. And the traction control unit performs self-adaptive traction control on the traction bed for bone fracture rehabilitation training according to the adjusted reciprocating degree of freedom and the matching degree information after traction compensation. According to the scheme, the traction bed for bone fracture rehabilitation is adjusted based on self-adaptive traction control, and the traction effect of the traction bed in the rehabilitation training process can be improved.

The invention relates to the technical field of traction treatment, in particular to a four-dimensional lumbar vertebra traction bed with a fixed-point massage function and a working method thereof, and the four-dimensional lumbar vertebra traction bed comprises an upper half bed body, a traction bed frame, a swinging bed frame, a rotating bed frame, an angulation bed frame and a massage mechanism; particularly, horizontal traction, flexion and extension traction, lateral flexion traction and rotary traction of the waist are achieved through three electric push rods, a traction motor and a rotary motor. Four-dimensional traction of the waist is achieved, and the traction effect is improved. And a massage mechanism is arranged below the waist, so that horizontal traction is realized, and waist massage is carried out at the same time. And the intervertebral disc tissue protrusion of the patient can be easily recovered and reset.

The utility model belongs to the technical field of aluminum profiles, and particularly relates to an efficient traction device for aluminum profile production, which comprises a conveying frame, a servo motor is fixedly mounted on one side of the conveying frame, a rotating rod is connected to the output end of the servo motor, and a conveying belt is connected to the surface of the rotating rod. A fixing frame is fixedly installed on one side of the top of the conveying frame, and a motor is fixedly installed on one side of the fixing frame. After one end of an aluminum profile is fixed, a motor is started to drive a sliding block to move through a lead screw, the moving sliding block can drive the aluminum profile clamped and fixed in a protective shell to move, the extruded and formed aluminum profile is pulled out, and in the pulling process of the aluminum profile, an electric push rod is started to drive a lifting plate to do lifting motion; and the lifting plate can make contact with the bottom of the drawn aluminum profile, the other end of the aluminum profile is lifted, the situation that the other end of the drawn aluminum profile deviates and collides is avoided, and the aluminum profile drawing effect is improved.

The utility model discloses a tractor for erecting a high-voltage wire, which comprises a jacket box, a driving disc and a traction driving group, the jacket box comprises a first clamping box, a second clamping box and a positioning strip plate fixedly arranged on the top surface of the second clamping box, and the first clamping box and the second clamping box have the same structure; and the two traction driving sets are located in the first clamping box and the second clamping box correspondingly, each traction driving set comprises a first creeping plate, a second creeping plate, a third creeping plate and a transmission gear rotationally installed on the inner side of the first clamping box and the inner side of the second clamping box, and the surface of each transmission gear is fixedly connected with an eccentric roller set. According to the utility model, by arranging the novel creeping lead structure, after the structure is positioned and fixed, the eccentric roller group drives the first creeping plate, the second creeping plate and the third creeping plate to alternately press the surface of a cable and perform friction transmission to pull the cable to move through hand-cranking driving or motor driving of the driving disc; and the traction effect is improved, and accurate traction adjustment can be performed according to tension requirements.

The invention relates to the technical field of neurosurgery, in particular to a neurosurgery fixator which comprises a bottom plate, a fixing mechanism used for being tightly attached to the head of a patient, two adjusting mechanisms used for adjusting the fixing mechanism and an injection molding mechanism used for fixing the fixing mechanism to the head of the patient. The bottom faces of the two adjusting mechanisms are fixedly connected with the two ends of the top face of the bottom plate correspondingly, and the fixing mechanism is located between the two adjusting mechanisms. According to the invention, the lines are pasted on the head of the patient by utilizing the fixing mechanism, the passing positions of the lines are adjusted according to actual needs, and then the injection molding mechanism is utilized to perform injection molding on the interior of the fixing mechanism and is cooled and cured, so that the lines formed by the fixing mechanism hold the head of the patient and are connected with the head of the patient into a whole; and then the position angle of the head of the patient can be adjusted through the two adjusting mechanisms for fixing or traction, so that the fixing or traction effect on the head of the patient is improved.

The utility model belongs to the technical field of copper-clad steel wire processing, and discloses a traction mechanism for copper-clad steel wire processing, which comprises a mounting frame, three mounting sleeves arranged at equal intervals are mounted in the mounting frame in a penetrating manner, and a reset spring is mounted in one end of each mounting sleeve. According to the utility model, through the arrangement of the abutting assembly, the outer side wall of the copper-clad steel wire can be abutted, and potential energy generated by the reset spring drives the extension sleeve rod and the mounting block to move towards the central point of the mounting frame, so that the copper-clad steel wire can be fixed on the outer side wall of the copper-clad steel wire, and the copper-clad steel wire can be fixed on the outer side wall of the copper-clad steel wire. And after the extension sleeve rod and the mounting block are adjusted, the extension sleeve rod is limited through magnetic attraction of the electromagnetic block, so that the copper-clad steel wires of different sizes can be adaptively adjusted, limitation generated in the traction process of the copper-clad steel wires is avoided, and the copper-clad steel wire traction efficiency is improved. And the practicability of the device is improved.

The utility model discloses a traction device for plastic pipe processing, which comprises a bin body and four groups of traction components, the four groups of traction components are all obliquely arranged in the bin body and are arranged in a rectangular array, and the two ends of the two groups of traction components below the bin body are both fixedly connected with the inner walls of the two ends of the bin body. Adjusting assemblies are arranged at the two ends of the two traction assemblies located above the bin body, the two traction assemblies are connected with the inner walls of the two ends of the bin body through the adjusting assemblies at the two ends, and the traction ends of the four traction assemblies all face the center of the bin body. According to the traction device for processing the plastic pipe, the stability of traction of the plastic pipe through the four traction assemblies is better than that of a traditional traction method, and the traction block made of rubber can increase the friction force between the traction block and the outer wall of the plastic pipe, improve the traction effect and reduce abrasion to the outer wall of the plastic pipe at the same time; the two traction assemblies above are adjusted through the adjusting assembly so as to adapt to traction of plastic pipes with different pipe diameters.

The invention discloses a traction and suspension combined control method for an embedded maglev train. The method comprises the steps that a traction sensor detects the speed v of a motor, the primary phase current i of the motor and the primary electric frequency omega s of the motor in real time; a suspension gap sensor detects a suspension air gap g in real time, namely a motor air gap; the suspension air gap g is input into the traction inverter; the traction inverter establishes a real-time linear motor model according to the received motor air gap value; the motor speed v, the motor primary phase current i and the motor primary electric frequency omega s are input into the suspension controller, and the suspension controller calculates the normal force Fy of the linear motor according to the received motor speed v, the motor primary phase current i, the motor primary current frequency omega s and the motor air gap g. According to the method, data of the suspension system and the traction system are fused, interference between the suspension system and the traction system is restrained, the suspension stability is improved, the traction performance is improved, and optimization of the suspension performance and the traction performance is achieved.

The invention relates to the field of locomotives, and provides a six-axle locomotive axle load transfer optimization method, system and device and a medium, and the method comprises the steps: obtaining design parameters of a locomotive, and selecting a design variable and a corresponding initial value from the design parameters; establishing a locomotive axle load transfer mechanical model of a locomotive body and front and rear bogies, and taking the model as a balance condition; selecting an optimized locomotive adhesion utilization rate as a target function, selecting a constraint condition comprising the balance condition, and solving to obtain an optimized value of a design variable corresponding to the optimized locomotive adhesion utilization rate; the optimized value of the design variable is substituted into the locomotive axle load transfer mechanical model, optimized axle load distribution is obtained, the optimized adhesion utilization rate and traction force are obtained through calculation, the six-axle locomotive is designed according to the optimized adhesion utilization rate, and the traction force is applied to all axles of the six-axle locomotive in the movement process. The idling risk of the locomotive is reduced through axle load transfer optimization, the traction performance of the train is improved, and the speed fluctuation of the train is reduced.

The utility model discloses an aluminum profile extrusion traction mechanism, which relates to the technical field of aluminum profile processing, and comprises an operation table and a moving plate, and the top end of the moving plate is symmetrically and fixedly connected with mounting plates; the clamping assembly is used for fixedly clamping the aluminum profile; the lifting assembly is used for driving the clamping assembly to move up and down; the driving assembly is used for driving the moving plate to move; and the clamping assembly comprises a clamping plate, a fixing block is fixedly connected to one side of the clamping plate, and a second adjusting bolt is rotationally arranged on the inner side of the fixing block. By arranging the clamping assembly and the lifting assembly, aluminum profiles needing to be pulled can be effectively clamped and fixed, meanwhile, the height of the clamping assembly can be adjusted according to different types of the entering aluminum profiles, and therefore the aluminum profiles can be limited and clamped more stably; the aluminum profile is prevented from being bent in the traction process, and the traction effect is effectively improved.

The utility model discloses a wire core traction processing device, which belongs to the technical field of wire core traction processing and comprises a substrate. The reel is connected with the base plate through a supporting block, and the reel is used for winding and unwinding a wire core; the traction part comprises a driving module, a carrying block and a clamping air cylinder, the driving module is installed on the base plate, the driving module and the reel are arranged in the same direction, the carrying block is located on the driving module, and the clamping air cylinder is installed on the carrying block so as to clamp a wire core; and the processing table is positioned on the substrate and is used for processing the wire core. According to the cable core traction processing device, traction processing of the cable core is achieved, manual operation is not needed in the process, the labor intensity of an operator is reduced, meanwhile, the traction processing precision of the cable core can be guaranteed, the traction effect of the cable core is improved, and the traction speed of the cable core is increased.

The invention discloses an off-the-road tire tread with a three-dimensional sipe pattern structure, which comprises a central pattern block I and a central pattern block II which are alternately arranged in the circumferential direction, and shoulder pattern blocks are respectively arranged on two sides of the central pattern block I and the central pattern block II; the first central pattern block is separated from the two adjacent second central pattern blocks through a first transverse three-dimensional sipe groove and a second transverse three-dimensional sipe groove respectively, the first central pattern block and the second central pattern block are separated from the shoulder pattern blocks through longitudinal sipe grooves, and the adjacent shoulder pattern blocks are separated through main pattern grooves. The transverse three-dimensional sipe pattern grooves I, the transverse three-dimensional sipe pattern grooves II, the longitudinal sipe pattern grooves and the main pattern grooves are communicated with one another; and the groove walls of the transverse three-dimensional sipe grooves I and the transverse three-dimensional sipe grooves II are zigzag. The overall saturation degree of the tread pattern is 75-85%, the tread rigidity is high, and the tire has good puncture resistance and abrasion volume and is suitable for scenes with severe working conditions.

The invention provides a tire tread structure which comprises a plurality of longitudinal grooves extending in the circumferential direction of a tire, and the longitudinal grooves are formed in the width direction of the tire at intervals so as to divide a tire tread of the tire into two tire shoulder pattern parts and a middle pattern part located between the two tire shoulder pattern parts. The first communicating groove is formed in the middle pattern part and is used for communicating two adjacent longitudinal grooves; wherein the number of the first communicating grooves is multiple, the multiple first communicating grooves are formed in the circumferential direction of the tire at intervals so as to divide the middle pattern part into multiple middle pattern blocks, at least part of the middle pattern blocks are located in a wear heat generation area of the tire, the wear heat generation area has the area S1, and the middle pattern blocks located in the wear heat generation area have the area S2; the area S1 and the area S2 meet the condition that 0.75 S1 < = S2 < = 0.85 S2. The mining dump truck tire effectively solves the problem that a mining dump truck tire in the prior art cannot give consideration to the control performance, the heat dissipation performance, the wear resistance and the cutting resistance at the same time.

The invention discloses a cage trolley carrying robot and a carrying method. The cage trolley carrying robot comprises a first chassis and a second chassis which are connected through a hinge shaft, and a chassis body capable of self-adapting to the terrain is formed; the scissor-fork assembly stretches across the double chassis, one end of the scissor-fork assembly is hinged to the first chassis, and the other end of the scissor-fork assembly is hinged to the second chassis; the moving assembly comprises a driving wheel with a damping seat and a universal wheel; a two-dimensional code camera is integrated on the scissors fork arm, and the two-dimensional code camera and the SLAM laser part on the chassis form a hybrid navigation system; through the design of the hinged chassis and the cross-chassis shear fork mechanism, the ultralow initial height of the robot is achieved, and the robot can enter low spaces such as the bottom layer of a goods shelf; the road holding force of the driving wheel is enhanced and the trafficability and the stability of the complex ground are improved by utilizing the coupling of the mechanical characteristics of the hinge structure and the shear fork mechanism; the hybrid navigation mode can be flexibly switched according to scenes, global autonomy and node accuracy are integrated, and the automation level, environmental adaptability and operation efficiency of cage trolley carrying are improved.

The utility model discloses a traction device for orthodontics, which relates to the technical field of orthodontics traction and comprises a supporting disc, two connecting columns are fixed on the outer surface of the supporting disc, square columns are arranged on the outer surfaces of the two connecting columns, and the square columns and the connecting columns rotate between a rotating shaft and a circular groove. A square plate slides at the top end of a transverse column through a sliding hole, so that the distance between the two fixing blocks is adjusted, and the user can conveniently adjust the distance according to the size of the mouth, and the outer wall of a stand column and the inner wall of a top plate are arranged in a sleeving mode; the rubber block fixed at the bottom end of the stand column is connected with the outer surface of the transverse column through rubber, the clamping block fixed at the top end of the concave plate is inserted into the inner wall of the clamping groove, the concave plate and the bottom end of the square plate are fixedly installed, and therefore the fixed block moved to the designated position is installed on the outer wall of the connecting rod in a limited mode, and shaking caused by external force interference is avoided.

The utility model discloses a gray fabric traction device convenient to store, relates to the technical field of gray fabric traction, solves the problem that the gray fabric traction device is inconvenient to store and protect after being used, and comprises a storage box, a moving mechanism is arranged at the bottom of an inner cavity of the storage box, and an L-shaped supporting plate is fixedly connected to the top of the moving mechanism. By arranging the positioning frame, the traction roller and the pressing roller, the gray fabric can be dragged and guided in the gray fabric winding process, by arranging the servo motor, the threaded rod, the threaded sleeve and the L-shaped supporting plate, the positioning frame, the traction roller and the like can be supported, and the gray fabric can be conveniently wound. Meanwhile, after the grey cloth is dragged, a positioning frame, a traction roller and the like can be driven to move rightwards, the grey cloth is stored in a storage box to be protected, damage caused by collision can be avoided, meanwhile, dustproof protection can be achieved, and the service life of the device is prolonged.

The present invention provides a range hood, which relates to the technical field of kitchen appliances. The range hood provided by the present invention comprises a casing, a fixed chamber, a rotating chamber assembly and a driving mechanism; the fixed chamber is installed at the lower end of the casing and communicated with the casing, the rotating chamber assembly is rotatably connected and communicated with the fixed chamber, the driving mechanism is transmission-connected with the rotating chamber assembly, and the driving mechanism is used to drive the rotating chamber assembly to rotate relative to the fixed chamber. The present invention alleviates the technical problem in the related art that it is inconvenient to adjust the angle of the smoking port, resulting in poor smoking effect.

The utility model discloses a traction machine for pipe production, which belongs to the field of pipe production and comprises a cabinet body, a traction mechanism is arranged at the top of the cabinet body and comprises two groups of conveying belts arranged up and down, one end of each conveying belt is a feed port, a limiting mechanism is arranged at the top of the cabinet body and is positioned at one end of the feed port of each conveying belt, and the conveying belts are arranged on the cabinet body. The limiting mechanism comprises two vertical plates fixedly connected to the top of the cabinet body, a two-way lead screw is rotationally connected between the two vertical plates, two limiting plates are in threaded connection with the two-way lead screw, the front end of the two-way lead screw extends out of the vertical plates and is fixedly connected with a second hand wheel, and guiding assemblies are arranged between the limiting plates and the vertical plates. The device has the beneficial effects that the second hand wheel drives the two-way screw rod to rotate, the two-way screw rod drives the two limiting plates to move in the direction close to each other or away from each other, so that the size of the feeding opening is adjusted according to the size of a pipe, the situation that the pipe is deviated due to the fact that the movable area at the feeding opening is too large is avoided, and the traction effect is improved.

The knitted body of the present invention is constructed by knitting a filament body containing at least one metal fiber, the cross section of which orthogonal to the length direction is a convex polygonal shape.

The utility model discloses a traction device of a die-cutting machine, and relates to the field of die-cutting machines, the traction device comprises a traction frame, guide cavities are symmetrically formed in the top end of the interior of the traction frame, and reset springs are mounted on the inner walls of one sides of the guide cavities. Through the arrangement of the heat conduction assembly, in the using process, liquid in the heating cavity is heated through the electric heating rod, then heat is transferred to the auxiliary pressing roller through the flexible layer, and in the using process, the traction effect of film products or bag products is improved in the traction process through the auxiliary pressing roller; meanwhile, the auxiliary pressing roller is subjected to heat transfer, so that the flattening effect of the film products or the bag products is further improved, and in the using process of the auxiliary pressing roller, a guide sliding block is driven by potential energy of a reset spring to move in a guide cavity, so that a connecting arm is driven to move, and then the connecting arm drives a mounting frame to move downwards; and therefore, the auxiliary compression roller can be self-adaptive to the size of the dragged material, and the practicability and convenience of the device are improved.

The utility model discloses a traction device for production of wear-resistant PVC-U pipes, which belongs to the technical field of pipe production and comprises a traction frame, openings are formed in two sides of the traction frame, a pipe guide mechanism is arranged at one end, close to the openings, of the outer side of the traction frame, and a fixing seat is mounted on the inner bottom wall of the traction frame. An electric telescopic rod is inserted into the middle of the top of the traction frame in a penetrating mode, a movable base is installed at the bottom of the electric telescopic rod, traction belt tensioning mechanisms are arranged on the movable base and the fixed base, and pipe traction mechanisms are arranged at the ends, close to each other, of the two traction belt tensioning mechanisms. According to the pipe traction device, the movable base, the pipe traction mechanisms, the fixed base and the electric telescopic rod are arranged in a matched mode, the electric telescopic rod stretches out to drive the movable base to move up and down, and then the distance between the two pipe traction mechanisms can be conveniently adjusted, so that the two pipe traction mechanisms can conduct traction work on pipes of different specifications; and the universality of the device is improved.

The invention discloses a portable supine cervical vertebra tractor with an adjustable angle. Comprising a machine base provided with an electric control device, a rotatable supporting pipe, an adjusting structure used for adjusting the inclination angle of the rotatable supporting pipe, a steel wire rope, a mechanical measuring structure, an adjustable occipital jaw belt detachably connected with the mechanical measuring structure and an adjustable headrest structure installed on the machine base. The lower end of the rotatable supporting pipe is hinged to the machine base and can rotate around a hinge point to stand on the machine base or be contained in the machine base. One end of the steel wire rope is connected with the electric control device, and the other end sequentially bypasses the first fixed pulley and the second fixed pulley and then is connected with the mechanical measurement structure. The device is suitable for most cervical spondylosis patients, the inclination angle can be adjusted, and the device is suitable for different traction angles; the device adapts to patients with different body types; a patient can control the traction force and time according to self feelings and operate wireless remote control to randomly select stopping and moving, so that the traction effect is further improved, and a good treatment effect is obtained.

The utility model discloses a traction device for power transmission and transformation line installation, and belongs to the field of power transmission and transformation line installation. A power transmission and transformation line installation traction device comprises a base, a plurality of guide wheels A are rotatably connected to the base, a sliding seat is slidably connected to the base, a plurality of guide wheels B are rotatably connected to the sliding seat, the guide wheels A and the guide wheels B are matched to clamp a cable, a motor is fixedly installed on the base, the motor is in transmission connection with one guide wheel A, and two U-shaped plates are fixedly connected to the base. The two sides of the sliding base are each elastically connected with two limiting plates, the same clamping grooves are formed in one ends of the limiting plates and one sides of the U-shaped plates, and the limiting plates are clamped and matched with the U-shaped plates. The sliding seat is used for lifting and sliding, the distance between the guide wheel B and the guide wheel A is adjusted, adjustment and adaptation can be conducted according to the sizes of different cables, after the position of the sliding seat is adjusted, the spring A automatically drives the limiting plate to be connected with the U-shaped plate in a clamped mode, the guide wheel A and the guide wheel B are matched to tightly clamp the cables, operation is easy and convenient, and the application range is wide.

The utility model discloses a traction mechanism for a glass fiber weaving and winding pultrusion pipe, which comprises a support plate and a traction ring, and support rods are symmetrically welded on two sides of the top of the support plate. According to the utility model, by adopting the controller and the motors, the outer surface of the braided tube can be in contact with the plurality of groups of traction wheels during traction operation, then a worker can synchronously control the plurality of groups of motors to synchronously operate through the controller, and the plurality of groups of traction wheels can synchronously rotate under the driving of the motors at the moment; due to the fact that the multiple sets of traction wheels are distributed at the different positions of the surface of the braided tube and move synchronously, it can be guaranteed that all the positions of the braided tube can move synchronously, and the braided tube is prevented from being damaged due to different movement trends caused by the speed difference; damage to the braided tube can be effectively reduced, the overall traction effect is improved, and the traction device has the advantages of being even in traction and small in damage.

The utility model relates to the technical field of spinning, and discloses a precise spinning cutting machine which comprises a supporting bottom plate, a wind-up roller and a traction roller, working vertical boxes are fixed to the two sides of the top end of the supporting bottom plate, and a driving motor is installed on the front end face of an outer box. The working vertical boxes are fixedly installed on the two sides of the top end of the supporting bottom plate, the working vertical boxes are located between the winding roller and the traction roller, at the moment, after a second servo motor is started to work, a first threaded rod can be driven to rotate, and at the moment, the first threaded rod and a threaded block are matched with each other to form a thread travel path; a connecting column penetrates through the interior of a guide groove and is connected with connecting blocks, and during thread movement, a second guide rod and a sliding sleeve are matched with each other to conduct guiding movement, so that after a first guide rod and a second threaded rod are connected with the two connecting blocks, a first servo motor is started to work, and then the second threaded rod can be driven to rotate; therefore, the purpose of wide-range cutting-off is achieved, and the full cutting-off capacity is improved.

The invention provides a tire, the tread of the tire is provided with a pattern structure, the pattern structure is a centrosymmetric structure, and the pattern structure comprises two circumferential grooves which are arranged at intervals along the rotation axis of the tire so as to divide the pattern structure into a middle pattern strip and two shoulder pattern strips; the transverse grooves are formed in the circumferential direction of the tire at intervals, each transverse groove comprises a middle transverse groove and two shoulder transverse grooves, so that the middle pattern strip is divided into a plurality of middle pattern blocks, each shoulder pattern strip is divided into a plurality of shoulder pattern blocks, and the shoulder pattern blocks directly face the middle transverse grooves one to one; each shoulder pattern block and the two middle pattern blocks located on the two opposite sides of the middle transverse groove right opposite to the shoulder pattern block jointly define a polygonal groove used for containing stones; the problems that in the prior art, due to the fact that too many pattern grooves are formed in a tire used in a surface mine, cutting stabbing and stone clamping are likely to happen, and the abrasion resistance is reduced are solved.

The medical support comprises a bearing plate, a screw rod, a sliding block and a hanging ring assembly, electric telescopic columns are arranged on the upper end face of the bearing plate, connecting rods are arranged on the opposite faces of the upper ends of every two sets of electric telescopic columns, sliding rods are arranged on the opposite faces of every two sets of fixing frames, and the screw rod is arranged above the sliding rods. Wherein motors are arranged on one sides of the two sets of fixing frames, the sliding blocks are arranged on the outer surfaces of the sliding rods, and the lifting ring assemblies are arranged below the leg lifting belts. According to the medical support, the hanging ring assemblies are installed and fixed through bolts, wearing can be conveniently and rapidly conducted, inconvenience and pain of a patient in the wearing process are reduced, the hanging ring assemblies can conduct electric translation and can be adjusted according to the needs of the patient, the traction effect is improved, and the discomfort of the patient is reduced; each leg is simultaneously provided with two groups of hanging ring assemblies, so that more uniform traction force distribution can be provided, the pain and discomfort of a patient can be relieved, and meanwhile, the legs of the patient can be better fixed.

The utility model relates to the technical field of film blowing machine equipment, and discloses a traction structure of a film blowing machine, which comprises an outer shell and two connecting shells, the bottom wall of the front side of the outer shell is fixedly connected with a fixed frame, the left side of the inner wall of the fixed frame is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a traction roller, and the traction roller is fixedly connected with the connecting shells. And the right end of the traction roller is rotationally connected to the right side of the inner wall of the fixing frame, a swing air cylinder is fixedly connected to the left side of the inner wall of the shell, and the right end of the swing air cylinder is fixedly connected to the left side of the connecting shell on the left side. According to the utility model, the tension of the thin film can be preliminarily adjusted through the expansion and contraction of the rotary adjusting roller, and then the rotary rod can swing by taking the middle part of the inner wall of the shell as an axis under the driving of the swing cylinder to finish the secondary adjustment of the tension during thin film traction, so that the condition that the quality of the thin film is influenced is reduced, and the traction effect is improved.

The utility model relates to a drag reduction structure and a submarine cable system, the drag reduction structure comprises a main body unit, a plurality of first moving units, a sealing unit, a second moving unit, at least one fixing unit, a guiding unit, a control unit and a stabilizing unit, and the main body unit passes through a submarine cable; the plurality of first moving units are respectively arranged outside the main body unit, are in contact with the embedded pipe and are used for driving the submarine cable to move through the main body unit; the sealing unit is detachably arranged in the main body unit; the second moving unit is movably arranged at the top end of the sealing unit and makes contact with the embedded pipe. The submarine cable drag reduction structure has the advantages that the first moving units and the second moving units are arranged on the outer side of the main body unit in a surrounding mode and used in cooperation, so that the drag reduction structure can serve as a moving point in all directions to drag a submarine cable when entering a pipeline to move, the traction effect is improved, and uneven stress in the traction direction is avoided; and the steel wire rope is fractured due to overlarge stress.