53results about How to "Achieve driving" patented technology

Belonging to the field of naval architecture and ocean engineering, the invention relates to a three dimensional visual simulator system device of ship driving and cabin operation. Based on a distributed mathematical physics platform model and a distributed ship operation principle, the device of the invention comprises six operational modules: (1) a power system mathematical physics equation modeling module, (2) a three dimensional display module, (3) a climate environment change display module, (4) a geographical information environment change display module, (5) a digital glove interactive operation module, and (6) a physical platform simulation operation module. The above modules are integrated into one physical platform, to solve the problem of integration between various modules. Specifically, three dimensional display, the database exchange technology and the digital glove interaction technology are integrated into one platform. Physical operation is used to replace keyboard event response, and scene change is used to replace ship navigation and cabin operation, to achieve the purpose of simulating ship steering and cabin operation.

The invention discloses a virtual vehicle-based real driving cycle test device and method. The method comprises the following steps: selecting a vehicle model, a road vehicle and a driver model in driver-vehicle-road modeling platform software to perform automatic driving or real driver driving; opening a driver-vehicle-road real-time platform and importing the driver model or the real driver operation, the vehicle model and the road model established in the driver-vehicle-road modeling platform into a real-time platform; operating the real-time operation platform; stopping the real-time platform after the driver model or the real driver drives under the selected road model and the vehicle model, and stopping a base frame system; saving operation information on a driver in a file of a specific format by the driver-vehicle-road modeling platform if the operation is the real driver operation, extracting a characteristic parameter of the driver and updating into the current driver model. According to the method, the calibration and the experiment of the entire vehicle are realized.

The present invention provides an unmanned electric college student equation racing car and a control method thereof. A steering engine and a decelerator thereof are installed at a vehicle steering mechanism, a brake steering engine and a decelerator thereof are installed on a vehicle, about a vehicle perception element, a corner sensor, a wheel speed sensor, a camera, a laser radar and a Gps correlated device are added. The vehicle perception element is employed to identify road environment information, determine a road and avoid obstacles so as to calculate a vehicle operational route to allow the vehicle to perform autonomous driving on the road so as to realize local path program. Besides, an assigned path can be manually input, and a test vehicle is running along the assigned path to realize the local path program. The vehicle can follow pedestrians to run behind a person. When the person suddenly stops, the vehicle can automatically brake, namely the individual soldier tracking technology. Finally, the college student equation racing car realizes an unmanned mode to allow an equation racing car to percept a road plan vehicle driving line so as to realize four-level automatic manless driving.

The invention discloses an urban underground logistics system. The system comprises a passenger platform and underground main rails which are arranged on two sides of the passenger platform; underground branch rails are arranged beside the underground main rails on the two sides respectively, cargo flowing channels are arranged beside the underground branch rails, and the two ends of the underground branch rails are connected to the corresponding underground main rail respectively; and the underground main rails are used for enabling a freight train to be in cross operation with a passenger train, the underground branch rails are used for running and stopping the freight train, and an underground cargo transfer station is arranged between the underground branch rails and the cargo flowingchannels. According to the system, spare time of the early peak, the late peak and the flat peak period of the urban underground passenger transport rails are fully utilized, and the utilization rateof the underground rails is greatly improved; and the urban underground passenger transport rail and the underground logistics system are combined, the utilization rate of the urban underground passenger transport rail is greatly improved, and meanwhile, the underground logistics is transported underground, the traffic jam and the environmental pollution are reduced to a great extent, and the cargo transportation efficiency is improved.

The invention relates to driving steering mechanisms, a vehicle body wheel system driving device, a control method and a vehicle. Each driving steering mechanism comprises a driving part, a steering shaft (12) and a locking and unlocking part, the driving parts are used for driving wheels (4) to rotate around the axes of the wheels, the steering shafts (12) are vertically arranged relative to thehorizontal plane, the locking and unlocking part is used for limiting the wheels (4) to rotate around the steering shafts (12) in a locked state and relieving limitation to rotating of the wheels (4)around the steering shafts (12) in an unlocked state so as to enable the wheels (4) to rotate around the steering shafts (12) through rotating around the axes of the wheels (4). Each of the driving steering mechanisms only needs to be provided with one driving part, traveling and steering of the wheels can be achieved simultaneously, the complexity degree of the driving steering mechanisms can belowered, the space is saved, and the cost is lowered.

The invention discloses a tracked carrier special for an intertidal belt. The carrier comprises a carrier body, a double-track device, a cab and a power system, wherein the carrier body is a bearing mechanism; and the double-track device is a traveling mechanism. The carrier is characterized in that: the bottom face of the carrier body is respectively connected with a gantry hinge-free connecting beam device and a Y-shaped hinge connecting beam device through pin shafts; two supporting beams of the gantry hinge-free connecting beam device are welded with a box beam I; the Y-shaped hinge connecting beam device is moveably hinged with box beam II; both the box beam I and the box beam II are sealed boxes and are respectively connected with crawler mechanisms on two sides of the box beam I and the box beam II through the pin shaft I and the pin shaft II; a three-fulcrum gantry based on the ground is formed; the power system is arranged on the middle part of the carrier body; the cab is arranged on the end face of the carrier body close to the Y-shaped hinge connecting beam device; and the cab can realize ascending and descending through slide ways, a slide way bracket, an oil cylinder and the pin shafts.

An electric car axle comprises a car axle body, a brake, a motor, a hub and a wide-base and single-tire rim. Stand columns are arranged at the two ends of the car axle body, and a motor mounting station is arranged on the outer side of each stand column. The motor comprises a housing, a stator coil, a rotor coil and a motor spindle, wherein the housing is mounted on the motor mounting stations, the stator coil is fixed to the housing, the motor spindle is rotatably fixed to the housing, and the rotor coil is fixed to the motor spindle. The inner round face of the hub is connected with the outer side end of the motor spindle through a spline, and the outer round face of the hub is supported on the inner edge of the housing of the motor through two tapered roller bearings. The wide-base andsingle-tire rim is fixed with the hub. The motor spindle, the hub and the axis of the hub are in coincidence, and the axis of the motor spindle is parallel to the plane where the plate type structureof the car axle body is placed. The electric car axle can prolong the service life of the motor, improve the reliability of the motor and reduce the height of a car floor.

The invention provides a heavy-duty electric driven all-wheel steering and all-wheel driving unmanned framework transport vehicle. The heavy-duty electric driven all-wheel steering and all-wheel driving unmanned framework transport vehicle comprises a frame assembly for placing cargoes, and further comprises a steering assembly, a driving axle assembly and a suspension assembly, wherein the steering assembly comprises a steering oil cylinder I, a steering oil cylinder II, a frame connection plate, two active steering structures and an oil cylinder connection seat which is fixedly mounted on the frame assembly; the frame connection plate is in rotary connection with the frame assembly; oil cylinder rods and tail parts of the steering oil cylinder I and the steering oil cylinder II are in rotary connection with the frame connection plate and the oil cylinder connection seat respectively; the two active steering structures are in rotary connection with the frame assembly respectively andare in rotary connection with two sides of the frame connection plate through connection rods I respectively; the suspension assembly comprises a suspension oil cylinder and a balance arm. According to the heavy-duty electric driven all-wheel steering and all-wheel driving unmanned framework transport vehicle provided by the invention, the problems in the prior art that a driving wheel of an existing heavy-duty AGV (Automatic Guided Vehicle) cannot rotate so that steering operation resistance is great and a tire of the driving wheel is abraded are solved.

The invention relates to a PLC-control-based electric flat carriage with two independent-driving wheels arranged diagonally. The electric flat carriage comprises a carriage frame, the two driving wheels arranged diagonally, two universal wheels arranged diagonally, independent power driving mechanisms, independent steering mechanisms, a PLC electric control cabinet and a drawer type battery box, wherein each independent power driving mechanism and each independent steering mechanism are arranged on one side of the corresponding driving wheel and connected with the driving wheel. The universal wheels are fixed to the bottom of the carriage frame through mounting bearing seats. Each independent power driving mechanism is provided with a driving spindle, a direct current motor, a speed reducer and a brake. Each independent steering mechanism is provided with a rotating base, a rotating head, a hydraulic steering oil cylinder and a hydraulic power unit, wherein the hydraulic power unit is provided with a hydraulic control valve. Each wheel rotating shaft is provided with a wheel rotating speed sensor. Each steering worm wheel is provided with a rotating angle sensor. The direct current motors, the hydraulic control valves, the wheel rotating speed sensors and the rotating angle sensors are all electrically connected with the PLC electric control cabinet. The drawer type battery box supplies power to the direct current motors and the PLC electric control cabinet.

The invention aims to provide a bidirectional hybrid power three- type chassis. An engine is connected with a power generator, fuel oil is converted into electric energy to charge batteries, so that the endurance function is realized; two steering systems are adopted to realize the bidirectional steering function, a steering drive axle and a steering axle adopt centering cylinders, so that the front and back centering synchronous steering function is realized; and the batteries provide energy for a driving motor, the steering drive axle is driven by a transmission shaft, so that the running ofa vehicle is realized. The layout of the chassis is compact and reasonable, and the vehicle is small but is provided with many systems; when the vehicle runs normally, the vehicle is driven by the driving motor; and when the electric quantity of the batteries is insufficient during operation, the batteries can be charged through the power generator, so that the endurance mileage is prolonged, thebatteries are kept in a good working state, overcharge and over-discharge are avoided, the service life of the batteries is prolonged, and the cost is reduced.

A low-floor modularized electric axle comprises an axle, disc type hub motors, hubs and a rim; disc type hub motor mounting positions are arranged at two ends of the axle; the disc type hub motors comprise housings, motor stators, rotor magnetic poles, rotor magnet yokes and motor rotating shafts; the housings are mounted at the disc type hub motor mounting positions at any end of the axle; the motor stators are fixed on the inner walls of the housings; the motor rotating shaft are fixed on the housings in a rotatable manner; the rotor magnet yokes are fixed together with the motor rotating shafts; the rotor magnetic poles are fixed on the rotor magnet yokes; the motor stators surround the rotor magnet yokes; the internal circular surfaces of the hubs are connected with the external side ends of the motor rotating shafts through splines; the external circular surfaces of the hubs are supported at the inner edges of the motor housings through two conical roller bearings; the rims are fixed together with the hubs; and brake discs are mounted on the internal side of a frame and connected with the internal side ends of the motor rotating shafts through splines. The low-floor modularized electric axle has the advantages that the service life of the motor can be prolonged, the reliability of the motor can be improved and the height of a compartment floor can be reduced.

The invention discloses a virtual vehicle-based real driving cycle test device and method. The method comprises the following steps: selecting a vehicle model, a road vehicle and a driver model in driver-vehicle-road modeling platform software to perform automatic driving or real driver driving; opening a driver-vehicle-road real-time platform and importing the driver model or the real driver operation, the vehicle model and the road model established in the driver-vehicle-road modeling platform into a real-time platform; operating the real-time operation platform; stopping the real-time platform after the driver model or the real driver drives under the selected road model and the vehicle model, and stopping a base frame system; saving operation information on a driver in a file of a specific format by the driver-vehicle-road modeling platform if the operation is the real driver operation, extracting a characteristic parameter of the driver and updating into the current driver model. According to the method, the calibration and the experiment of the entire vehicle are realized.

The invention provides a hybrid power system and a vehicle. The hybrid power system comprises a gearbox, an engine, a first motor and a second motor. The gearbox comprises a first input shaft, an output shaft, a second input shaft, a first speed change mechanism and a second speed change mechanism, the first input shaft and the output shaft are connected through the first speed change mechanism, and the second input shaft and the output shaft are connected through the second speed change mechanism; the engine and the first motor are in transmission connection with the first input shaft; and the second motor is in transmission connection with the second input shaft. The gearbox structure of the hybrid power system can be simplified, and the transmission efficiency is improved.

The invention discloses a self-deformation wheel rail type concrete construction vehicle which comprises a vehicle body, a concrete mixing tank is installed on the upper side of the vehicle body, a plurality of telescopic wheel sets are installed on the vehicle body, a front rail walking device and a rear rail walking device are installed on the lower side of the vehicle body, and the rear rail walking device comprises two vertically-arranged base plates. A walking assembly is installed between the two base plates, a flat plate is fixedly connected between the two base plates, and the upper side of the flat plate is rotationally connected with a vehicle body through a rotating disc. The self-deformation wheel rail type concrete construction vehicle has the advantages that the vehicle body is lifted through the telescopic wheel set, so that the front track walking device and the rear track walking device are in a suspended state, the vehicle can run in a tunnel, and the vehicle body is descended through the telescopic wheel set, so that the front track walking device and the rear track walking device are connected with a track; and the telescopic wheel set is in a suspended state, so that running on the rail can be realized.

The invention is an amphibious vehicle suitable for water, land and air, comprising: a car body (1), a front door (2), a front flying wing (3), a rear door (4), a rear flying wing (5), and an engine room (6) , Propeller (7) and so on. When sailing on the road, the amphibious vehicle is in the same form as an ordinary car, and the engine drives the wheels to rotate; the front flying wings (3) and the rear flying wings (5) have the same shape design as the wings, and the propeller (7) is strongly propelled to sail forward When sailing on the water, the flying wings are normally deployed, but the state of not rising is maintained, and the sailing is carried on the water. When the front flight wings (3) and the rear flight wings (5) travel on the water surface, the deployment angle is smaller than that of the air travel. The invention realizes that the automobile can run on water, land and air.

The invention relates to an all-terrain intelligent agricultural multifunctional power chassis, and belongs to the technical field of vehicles. The all-terrain intelligent agricultural multifunctionalpower chassis comprises a profiling drive system which comprises four groups of drive devices installed below the chassis, wherein the structures of all groups of the drive devices are the same, andeach group of drive devices comprises a connecting rod suspension, a profiling wheel group, a suspension linkage tension spring, an angle encoder, a steering pull rod, a hydraulic oil cylinder, a cantilever and a motor. The invention provides the all-terrain intelligent agricultural multifunctional power chassis so as to meet driving requirements of various different terrains and improve terrain adaptability and trafficability of agricultural machinery during repeated tillage. The all-terrain intelligent agricultural multifunctional power chassis solves the problems that agricultural equipmentis poor in ground adaptability, poor in skid resistance, insufficient in adhesion force, poor in trafficability, difficult to level a vehicle body and the like in a complex farmland environment.

The invention discloses a carbon-free trolley. The carbon-free trolley comprises a trolley frame and is characterized in that a weight power assembly capable of converting gravitational potential energy of a weight into power energy, a drive belt wheel assembly connected with the weight power assembly, a crank connecting rod assembly, a driven cam assembly connected with the drive belt wheel assembly and used for pushing the crank connecting rod assembly to move, a drive wheel connected with the drive belt wheel assembly, a steering wheel connected with the crank connecting rod assembly and adriven wheel rotatably installed on the trolley frame are installed on the trolley frame, the drive wheel, the steering wheel and the driven wheel are in a triangular distribution and respectively make contact with the ground to horizontally support the trolley frame, the steering wheel is located in front of the drive wheel and driven wheel, the weight power assembly pulls the drive belt wheel assembly to move through lowering of the weight, and therefore the driven cam assembly and the driven wheel are driven to move; the crank connecting rod assembly moves with the driven cam assembly, thesteering wheel is driven to steer, and the driven wheel rolls with moving of the driven wheel and the steering wheel to make the trolley run.

The invention discloses a brake device for a rail line trolley, and belongs to brake devices of construction rail vehicles. The device comprises a frame, a wheel pair is arranged at the bottom of the frame; a transmission mechanism and a brake mechanism are mounted on the frame; the transmission mechanism comprises a supporting seat mounted at the end part of the frame; one side of the transmission rod is hinged to the supporting seat; the push rod is mounted at the top of the transmission rod; the brake mechanism comprises a brake pad which is arranged opposite to a roller on the wheel pair; one end of the brake pad support is connected to the brake pad, and the other end of the brake pad support is connected with the transmission rod; a spring connecting sheet II and a spring connecting sheet I are respectively arranged at the bottom of the frame and on the side wall of the transmission rod; a spring is arranged between the second spring connecting part and the first spring connecting part. According to the invention, the problems of low braking efficiency, high operation risk, high sliding probability and incapability of standardized operation of a trolley used in conventional rail transit line construction are effectively solved.

The invention relates to the field of vehicle transmission device arranging or installing, and in particular to a ground clearance adjusting lifting system of a four-wheel tractor. The ground clearance adjusting lifting system comprises a closed upper tank and a closed lower tank. The upper tank is located above the lower tank. The ground clearance adjusting lifting system further comprises a lifting rod. The upper tank and the lower tank are connected through the lifting rod. A tank flange is arranged on one side edge of the upper tank, and a fixing base is arranged on the corresponding other side edge of the upper tank. The upper tank is internally provided with a third bevel gear and a fourth bevel gear. The crossed axis angle of the third bevel gear and the fourth bevel gear is 90 degrees. The third bevel gear and the fourth bevel gear are engaged. The fourth bevel gear is fixedly connected with a drive shaft. The third bevel gear is in sliding connection with the lifting rod. After the system is installed on the four-wheel tractor, the ground clearance of the four-wheel tractor can be greatly increased and can be freely adjusted.

The invention discloses a liquid piston hydraulic-pneumatic engine which comprises a pneumatic-hydraulic cylinder, a hydraulic power mechanism, a liquid working medium return system and a liquid gas source, wherein the liquid gas source is communicated with the pneumatic-hydraulic cylinder sequentially through a high-pressure liquid pump and a liquid heat absorption heat exchanger; the liquid in the liquid gas source is quantitatively introduced into the liquid heat absorption heat exchanger and is gasified into a gaseous working medium in the liquid heat absorption heat exchanger; the gaseous working medium is communicated with the pneumatic-hydraulic cylinder through a gaseous working medium control valve, or the liquid gas source is communicated with the pneumatic-hydraulic cylinder sequentially through the high-pressure liquid pump and a liquid working medium control valve; and the liquid in the liquid gas source is quantitatively introduced into the pneumatic-hydraulic cylinder and is gasified into a gaseous working medium in the pneumatic-hydraulic cylinder. According to the invention, a piston crank-link mechanism of the engine is omitted; and the engine disclosed by the invention has the advantages of high efficiency, small volume, light weight and the like.

The invention relates to the field of building crushing equipment and especially relates to a construction site residual brick picking and refining device and a using method. The device comprises a chassis, a controller, a wide-angle camera, a driving mechanism, a picking mechanism and a rolling mechanism. The wide-angle camera is mounted at the bottom of the chassis; the driving mechanism comprises a steering assembly and a driving assembly; the picking mechanism is arranged at the top of the chassis and is used for picking residual bricks on a construction site; the picking mechanism comprises a sliding table, a pushing assembly and a clamping assembly; the rolling mechanism comprises a supporting shell and a grinding assembly; and the steering assembly, the driving assembly, the pushingassembly and the clamping assembly are all electrically connected with the controller. According to the construction site residual brick picking and refining device and the using method, manual workcan be replaced to achieve automatic picking, a labor amount of workers is small, picking efficiency is high, meanwhile, power consumption is small, and crushing cost can be saved.

The invention discloses a garlic sowing machine. The garlic sowing machine comprises a frame, a front housing, a balance wheel, drive wheels, a motor, a seeding speed changer, a furrowing and seedingdevice, a pressing roller and an armrest frame and is characterized in that the front housing is located above the front end of the frame and welded with the frame, drive wheel support racks are arranged at the front end of the frame, the balance wheel is coaxially provided with a large belt wheel, two ends of the balance wheel are rotatably connected with the frame and the drive wheel support racks, the drive wheels are rotatably connected with the lower ends of the drive wheel support racks, the motor is connected with the front housing in a fastened manner, the seeding speed changer is connected with the front housing in fastened manner, a first transverse support rod and a second transverse support rod are arranged in the middle of the frame, the furrowing and seeding device are connected with the first transverse support rod and the second transverse support rod in a fastened manner, the pressing roller is rotatably connected with the frame, and the armrest frame is welded with the rear end of the frame. The garlic sowing machine has the advantages that garlic seeds can precisely fall in a bottom-end-downward manner, oblique seed falling caused by vibration caused by single-cylinder gasoline engine driving and sowing machine traveling in the field through wheels, garlic seed germination rate is guaranteed, and accordingly yield is guaranteed.

The automobile cab comprises a cab body and a sleeping berth structure, the cab body is provided with a driving area and a rest area arranged on one side of the driving area, the sleeping berth structure is arranged in the rest area and comprises a first sleeping berth, the first sleeping berth comprises a box body and a connecting plate, and a storage cavity and an opening communicated with the storage cavity are formed in the box body; the driving area and the rest area are arranged in the driving cabin body, the sleeping berth structure is arranged in the rest area and comprises the first sleeping berth, the connecting plate is connected with the box body, the rest function of the sleeping berth structure can be achieved, the storage cavity is formed in the box body, the storage cavity is arranged in the box body, and the storage cavity is arranged in the box body. According to the sleeping berth structure, the storage function can be achieved through the storage cavity of the box body, then living goods of a driver can be placed in order, the interior of a cab is clean and tidy, and finally the problems that a clean and tidy home environment cannot be achieved in an existing automobile cab, and the living standard of the driver is affected are solved.

An electric heavy-duty vehicle wheel rim driving assembly belongs to the field of electric motors. A conventional automotive motor system has a low degree of integration and a high cost. In the electric heavy-duty vehicle wheel rim driving assembly, a motor driver (2) is fixed to the upper end of a permanent magnet synchronous motor (1) and the motor driver and the permanent magnet synchronous motor constitute an assembly structure; a cooling pipe (3) comprises an S-shaped bent flat structure and a spirally coiled cylindrical structure in communication with each other; the S-shaped bent flat structure is installed in the motor driver (2) to dissipate the heat of the motor driver (2); a corresponding opening is disposed on the casing of the motor driver (2) for passing the S-shaped bent flat structure; and the spirally coiled cylindrical structure wraps the periphery of the permanent magnet synchronous motor (1) to dissipate the heat of the permanent magnet synchronous motor (1). The motor of the invention has a high degree of integration and low production and operation cost.

The invention relates to a stringing construction device, in particular to a usage method of the stringing construction device for a power transmission technology. The method comprises the following steps of S1, providing a stringing construction auxiliary device for the power transmission technology, wherein the stringing construction auxiliary device for the power transmission technology comprises a basket body, side plates are fixedly mounted at the four corners of the top of the basket body, and driving wheel shafts are rotatably mounted at the opposite sides of the side plates; S2, dismounting bolts and taking out a cross rod, and mounting the stringing construction auxiliary device for the power transmission technology on a wire of an external overhead power transmission line; S3, starting a driving motor, and enabling the stringing construction auxiliary device for the power transmission technology to run along the wire. By arranging the basket body, the side plates, the drivingwheel shafts, driving wheels, the driving motor and a chain wheel and chain transmission mechanism, the chain wheel and chain transmission mechanism drives the driving wheel shafts at the two ends torotate, and therefore an aerodyne can run on the wire without being driven by manpower.

The invention discloses a hydraulic steering mechanism which comprises a steering wheel, a transmission shaft, a rotary shaft, a ball screw mechanism, a piston rod, a liquid storage tank, a three-way valve and a steering hydraulic cylinder. The steering wheel is connected with one end of the transmission shaft through a cardan joint, the other end of the transmission shaft is connected with the rotary shaft through a cardan joint, and a slide block is arranged in the ball screw mechanism and performs reciprocal rectilinear motion along the rotating axis of the ball screw mechanism. A piston is arranged on the part of the piston rod in the liquid storage tank, oil outlets are formed in the bottom on the two sides of the liquid storage tank respectively, one end of the three-way valve is connected with the corresponding oil outlet, and the other two ends of the three-way valve are connected with the steering hydraulic cylinder. The steering hydraulic cylinder is connected with a steering knuckle arm and controls wheels on the two sides to perform steering according to different pressures of the liquid storage tank. By means of the helical curve of the ball screw mechanism, labor is saved when steering is performed, steering torque of the wheels is larger by means of matching the helical curve of the ball screw mechanism and the hydraulic cylinder, and it is ensured that the wheels have enough swerving trafficability.

The invention discloses a self-deformation wheel rail type transport vehicle which comprises a vehicle body, a set of fixing seats are fixedly connected to the lower side of the vehicle body, a sliding hole is formed in one side of each fixing seat, a cross beam is slidably connected into each sliding hole, a telescopic hydraulic cylinder used for controlling the cross beam to slide in the corresponding sliding hole is installed in each sliding hole, and a vertical pipe is arranged at one end of each cross beam. A stand column is connected into each stand pipe in a sliding mode, the lower end of each stand column is fixedly connected with a walking wheel set, a lifting hydraulic cylinder used for controlling the corresponding stand column to slide in the corresponding stand pipe is installed in each stand pipe, and two rail walking devices are installed on the lower side of the vehicle body. The self-deformation wheel rail type transport vehicle has the advantages that the vehicle body is lifted through the lifting hydraulic cylinder, so that the track traveling device is in a suspended state, traveling in a tunnel can be realized, the vehicle body is descended through the lifting hydraulic cylinder, the track traveling device is connected with a track, and the traveling wheel set is in a suspended state, so that traveling on the track can be realized.

The invention discloses a carbon-free trolley. The carbon-free trolley comprises a trolley frame and is characterized in that a weight power assembly capable of converting gravitational potential energy of a weight into power energy, a drive belt wheel assembly connected with the weight power assembly, a crank connecting rod assembly, a driven cam assembly connected with the drive belt wheel assembly and used for pushing the crank connecting rod assembly to move, a drive wheel connected with the drive belt wheel assembly, a steering wheel connected with the crank connecting rod assembly and adriven wheel rotatably installed on the trolley frame are installed on the trolley frame, the drive wheel, the steering wheel and the driven wheel are in a triangular distribution and respectively make contact with the ground to horizontally support the trolley frame, the steering wheel is located in front of the drive wheel and driven wheel, the weight power assembly pulls the drive belt wheel assembly to move through lowering of the weight, and therefore the driven cam assembly and the driven wheel are driven to move; the crank connecting rod assembly moves with the driven cam assembly, thesteering wheel is driven to steer, and the driven wheel rolls with moving of the driven wheel and the steering wheel to make the trolley run.

The invention provides a road roller transmission system and a road roller. The road roller transmission system comprises: a drive axle; a connecting mechanism connected with an input shaft of the drive axle; and an integrated speed reducer, wherein the output shaft of the integrated speed reducer is connected with the connecting mechanism, and the input end of the integrated speed reducer is usedfor being connected with a driving device of the road roller. The integrated speed reducer is used for transmitting output power of the driving device to the driving axle and carrying out speed reduction and / or braking in the power transmission process. According to the technical scheme, the integrated speed reducer is adopted for transmission, speed reduction and / or braking operation, the overall structure and the connection relation of a transmission system are simplified, meanwhile, the internal structure of the drive axle is simplified, the drive axle high in universality in the mechanical industry can be adopted, the reliability of the drive axle can be improved, and meanwhile the cost can be reduced.