1509 results about "Monorail" patented technology

Systems providing improved methods of performing a spinal fusion procedure and including a monorail instrument that protects the medial neural structures, includes a sliding platform for additional instrumentation and allows controlled delivery of various instruments for disc preparation and implant insertion. The monorail instrument engages other instruments, including various instruments utilized to prepare the disc space as well as spinal fusion implants, for guided and controlled insertion into the disc space. The monorail instrument may be a distractor, and may include flutes for preparation of the disc space.

The invention discloses a monorail train and monorail traffic system controllable in adhesive force. The monorail train and monorail traffic system comprises a plurality of carriages and brackets located at the bottom parts of the carriages; each bracket is provided with a wheel; each wheel comprises at least one pair of driving guide wheels with power; the guide wheels are symmetrically arranged below two sides of a rail in pairs, and the radial direction of each guide wheel and the vertical direction of the rail form an upward oblique included angle; each bracket is also provided with a preload control system connected with the corresponding guide wheels. According to the monorail train and monorail traffic system controllable in adhesive force, disclosed by the invention, adhesive weight can be increased during starting and braking, and moreover, the adhesive weight is reduced during running, therefore the goals that the friction action of the rail is increased during starting or braking to rapidly implement acceleration or deceleration, and the friction action of the rail is reduced during constant-speed running to reduce energy consumption are further achieved.

The invention is a dilation catheter which comprises an elongated catheter shaft, a guide wire tube, and an angioplasty balloon. The distal end of the balloon is attached to the distal portion of the guide wire tube, and the proximal portion of the balloon is attached to the distal portion of the catheter shaft. A stiffening wire is attached to the inner wall of the catheter shaft at a plurality of points along its length. The distal extremity of the guide wire tube is decreased in size relative to the proximal portion of the guide wire tube. A fluid is contained within the guide wire lumen.

The invention relates to an urban rail operation vehicle and in particular relates to a straddle type monorail operation vehicle with a structure comprising two pairs of wheels. The straddle type monorail operation vehicle comprises a carriage, a steering frame, an engine, a transfer case and a walking pump, wherein the steering frame is connected with an underframe of the carriage through a central pin dragging device; the steering frame comprises a framework, a secondary suspension device and a dragging device; the overall framework is of an II-shaped full-steel installed and welded plate type box structure and comprises a side beam, end beams connected to two ends of the upper part of the side beam and two vertical beams which are connected between the end beams; a motor bracket is fixed between the upper part of the side beam and the corresponding vertical beam; two independently-driven walking wheel assemblies are mounted on two motor brackets; four guide wheel assemblies are mounted on two sides of the middle part of the side beam; two stabilizing wheel assemblies are mounted on two sides of the lower part; the secondary suspension device adopts a secondary steel coil spring assembly. The straddle type monorail operation vehicle can reasonably meet the circuit requirements of monorail PC beams and is high in safety coefficient, excellent in dragging performance, simple and compact in structure, easy to maintain, stable in running and excellent in brake performance.

A mount for monocular enhanced night vision goggles having an ocular preference adjustment, an interpupillary adjustment, an eye relief adjustment, a tilt adjustment, a vertical adjustment, a quick stowage feature and a flip-up stowage feature is disclosed. An apparatus in accordance with the present invention has a housing secured to headgear. A vertical block is slidably coupled to the housing allowing it to translate vertically. A chassis is rotatably coupled to the vertical block allowing it to rotate between an in-use and flip-up position. A monorail is rotatably coupled to the chassis allowing it to rotate between an in-use and a quick stowage position. A carriage is slidably coupled to the monorail allowing for an eye relief adjustment. Enhanced night vision goggles are attached to a socket assembly which is movably coupled to the carriage allowing relocation in front of either eye while facing the same direction.

The invention discloses the trace tracking method of an autonomous vehicle. The method comprises the following steps of S1, determining a reference trace and establishing a vehicle monorail dynamics model, a tracking error performance index calculation model and a trace tracking control model; S2, selecting a closest reference point having a minimum weighted deviation with a real-time vehicle position and a course angle on the reference trace; S3, based on the vehicle monorail dynamics model, using a closed-loop control strategy to predict a vehicle state in a future time domain; S4, based onthe vehicle monorail dynamics model, using an open-loop control strategy to predict the vehicle state in the future time domain; and S5, calculating the tracking error performance indexes corresponding to the vehicle states in the S3 and S4, and selecting the trace tracking control model corresponding to the small tracking error performance index as the control mode output of a vehicle. The tracetracking method is based on combination navigation or SLAM high-precision positioning and is suitable for the trace tracking of multiple traces, multiple vehicle models and all working conditions (limited and non-limited working conditions).

The invention discloses a suspension type monorail train bogie. The suspension type monorail train bogie comprises a framework, a traction suspension device, guide wheels, walking wheels, a driving device, a brake device and a collector shoe. The at least eight guide wheels are arranged at the four end corners of the upper portion of the framework and the four end corners of the lower portion of the framework respectively, the driving device comprises a gearbox, the four walking wheels are arranged on four output shafts of the gearbox respectively, the guide wheels are solid rubber wheels, and the walking wheels are inflated rubber wheels. The eight solid rubber wheels are used as the guide wheels, the self-guide function of the bogie is achieved, the four inflated rubber tires are used as the walking wheels, longitudinal force between a train and a rail is transmitted, and the weight of the train is borne. The suspension type monorail train bogie is compact in structure, excellent in train running stability and riding comfort, and capable of being driven on lines with the big gradient (100 parts per thousand) and the small radius (the minimum curve radius of the plane is 30 m) and has the good adaptability to the complex terrain (up and down terrain, mountain cities and rivers).

The invention provides an unmanned vehicle path planning and tracking control method based on differential flatness and active-disturbance rejection and can improve the tracking effect of a four-wheel steering unmanned automobile during high-speed overtaking. The method is advantaged in that step 1, a three-degree-of-freedom four-wheel steering automobile monorail control model is established; step 2, based on the control model established in the step 1, according to the differential flatness theory, an under-actuated controlled model is converted into an input output coupling model having disturbance and having no zero dynamic subsystem; step 3, a path planning layer is established above a tracking control layer; and step 4, according to the input output coupling model based on the step 2, an active-disturbance rejection controller based on a generalized proportion integration observer is designed, and tracking of locus planned in the step 3 is realized.

The present invention provides a suspension type monorail vehicle bogie, and belongs to the technical field of rail transit. In the prior art, the suspension type train bogie has problems of complex structure, poor safety, poor curve negotiating, and high noise during train running. According to the suspension type monorail vehicle bogie, both ends of a frame are provided with a motor installation base, traction motors are fixed on the motor installation bases through bolts, both ends of a coupler are respectively connected with a traction motor output shaft and a gearbox input shaft, walking wheels are connected with the frame through hollow shafts, both sides below the traction motors are provided with a guide wheel, the guide wheels are connected with the frame through bolts, and walking safety wheels and guide safety wheels are arranged respectively corresponding to the walking wheels and the guide wheels. The suspension type monorail vehicle bogie is mainly used for urban rail train driving.

Suspended monorail traffic track beam external intelligent inspection and maintenance vehicle to realize the automation, informatization and intelligence of track beam external faults and defect inspections, and provide inspection and maintenance operating conditions. It has a car body, a drive unit, an intelligent detection unit, a driving control unit and a safety protection unit. The drive unit is composed of a power storage battery and a suspension bogie. The rear of the car body is equipped with a suspended monorail track beam inspection and maintenance operation platform, which is equipped with a sensor lifting bracket, a contour detector, a lifting fence translation track, an inspection and maintenance operation lifting platform, a limit detection laser sensor, and a corrosion detection camera; the suspended monorail The track beam inspection and maintenance work platform can move laterally and vertically on the translation track of the lifting fence, and the range of motion covers the left, right and lower sides of the track beam, providing an inspection and maintenance platform that can be moved horizontally and vertically outside the track beam. The contour detector and the corrosion detection camera of the intelligent detection system are installed on the vertically movable sensor lifting brackets on both sides of the middle of the car body, the corrosion detection camera is installed outside the middle of the bracket, and the contour detector is installed on the inside of the middle and top of the bracket .

The invention provides a suspension type monorail track and a trolley bus and belongs to the field of communication and transportation. The suspension type monorail track comprises a track beam. A walking cavity is formed in the track beam. The bottom of the walking cavity is a walking face. The side face of the walking cavity is a guide face. A wear-resisting and tackifying layer is arranged on the walking face. A wear-resisting layer is arranged on the guide face. According to the suspension type monorail track and the trolley bus, the structure of additionally arranging the wear-resisting and tackifying layer on the walking face and additionally arranging the wear-resisting layer on the guide face is adopted, in this way, wear-resisting performance of the track beam can be effectively improved, and the period for replacing the track beam is prolonged greatly; moreover, adhesive force between a walking part of a vehicle and the walking face is increased, which is beneficial for enhancing the ability of a track system to adapt to terrain of a large ramp; meanwhile, by means of the wear-resisting and tackifying layer capable of being replaced or laid again, convenience of maintaining the track is improved, cost of maintaining the track is reduced, and the defects in the prior art are effectively overcome.

The invention discloses a train active-guiding-type suspension monorail turnout system. The train active-guiding-type suspension monorail turnout system comprises a guiding rail installed a turnout beam body, and an active guiding device installed on a train bogie. The guiding rail comprises a straight direction guiding rail and a side direction guiding rail. The active guiding device comprises anactive guiding wheel and a rotatable base. The active guiding wheel is installed above the rotatable base and can be rotated relative to the rotatable base. The rotatable base is connected with a rotation driving device which can drive the rotatable base to be rotated. The rotatable base is further connected with the bogie. The active guiding wheel contacts with the guide rail after entering a turnout area. According to the train active-guiding-type suspension monorail turnout system, the active guiding device is used in a train, a traditional passive guiding mode is changed, the train passesthrough the turnout in an active guiding mode, a series of moveable mechanisms, such as a moveable rail, a compensation rail and a correction rail, do not need to be installed on the turnout, the suspension monorail turnout structure can be greatly simplified, the turnout system cost is reduced, and the turnout system stability is improved.

The invention discloses a straddle type monorail transportation rigid framework system, and relates to track beams and piers in a straddle type monorail transportation system. In order to increase smooth of lines, reduce the number of monorail transportation track beam expansion joints, eliminate cast steel tension supports, reduce abrasion to rubber wheels and construction cost, and prolong service life of vehicles, the straddle type monorail transportation rigid framework system is designed. The straddle type monorail transportation rigid framework system is composed in a multi-connected rigid frame bridge mode, a rigid frame bridge is formed by connecting concrete track beams which are prefabricated by a workshop on pier bent cap top surfaces through wet joints in a simple support into continuous method, the track beams are prefabricated by the workshop, adjacent two-connected rigid frame bridges are connected through seamless expansion joints or joint plates or plate type rubber expansion joints, and seamlessness of the straddle type monorail transportation lines is achieved.

A monorail bogie for supporting a monorail car travelling over a monorail track. The monorail bogie comprises a load-bearing wheel having an axis of rotation that is parallel to the running surface. The monorail bogie further comprises an inboard pair of guide wheels and an outboard pair of guide wheels. Each guide wheel of the inboard pair of guide wheels has an axis of rotation and each guide wheel of the outboard pair of guide wheels has an axis of rotation. The axes of rotation of the inboard pair of guide wheels and the axes of rotation of the outboard pair of guide wheels are offset in opposite directions in relation to the axis of rotation of the load bearing wheels. The monorail bogie further comprises at least one stabilizing wheel positioned co-axially with each one of the inboard pair of guide wheels.

The invention discloses a monorail crane turnout junction which is highly efficient, safe and reliable. The monorail crane turnout junction of the invention comprises a top plate, monorails and a camping rail. One end of the two parallel monorails is in butt joint and coordination with the movable end of the camping rail; baffle plates are respectively arranged at the ends of the two monorails; a camping rail hinged end is hinged on the top plate and is in butt joint and coordination with a uniseriate monorail end; a positioning shaft is arranged on the movable end of the camping rail; two positioning cylinders are both fixed on the top plate; a positioning fork is arranged on the piston rod of a telescopic cylinder; the positioning fork is in plug-in coordination with the positioning cylinders; and an oscillating cylinder is in rotary coordination with the top plate. In the invention, the structure which is characterized in that the baffle plates, the positioning cylinders, the positioning shaft and the positioning fork are matched is adopted, so that the camping rail is locked and the safety is greatly improved. The operation of the turnout junction can be achieved by controlling the oscillating cylinder and the telescopic cylinder and no manual operation is needed, as a result, the operating efficiency is high and when remote control is applied, the operating efficiency is even higher.

The invention discloses an unmanned vehicle transverse motion control method based on GK clustering algorithm model prediction. The method comprises the steps of 1, acquiring the current state of a vehicle in real time; 2, collecting the surrounding environment of the vehicle, and planning an expected path in real time; 3, establishing a monorail vehicle model by using a GK clustering algorithm; 4, converting the monorail complete vehicle model obtained in the step 3 into a state space equation of a linear error model, and discretizing the state space equation; 5, using a linear time-varying model prediction control algorithm to establish a linear time-varying model prediction controller; taking the mass center speed under a vehicle coordinate system, the course angle, the yaw velocity andthe vehicle position as input of a model prediction controller, taking the front wheel rotation angle as the output of the controller, calculating the track points in the prediction time domain and acontrol sequence in the control time domain according to the current state and the target track, converting the problem into a quadratic programming problem to obtain an optimal solution, and updating the vehicle state; and 6, sequentially controlling the steering of the target vehicle according to the control quantity obtained by the model prediction controller.

An improved exercise machine has a stationary longitudinal monorail structure that extends between front and back end stationary exercise platforms, and an exercise platform mounted on a levitated carriage that is reciprocally movable along the monorail between the stationary platforms. Magnetic elements arranged on various opposing surfaces of the carriage and monorail generate magnetic forces that levitate and stabilize the carriage as it moves relative to the monorail thus substantially eliminating contact friction. Springs selectively attachable to the movable platform provide a resistance force for exercising. Pseudo-levitation and eddy brake elements on the carriage and monorail structure further stabilize the carriage and platform.