2290 results about "Wheel drive" patented technology

The invention relates to the technical field of furnace shell welding, in particular to a gas industrial furnace shell welding device which integrates a radial circular seam and an axial longitudinal seam, a servo motor drives a planetary gear train through an intermittent sheave, a rotating shell drives a clamped furnace shell to rotate, and radial welding is completed; after a bottom clamping jaw instantly locks a shell, power is switched to a planet carrier, an outer mounting arm drives a driven scraping arm to grind the inner wall while axially moving, welding and grinding synchronization is achieved, a bidirectional pushing seat crank sliding block mechanism continuously rotates in a one-way mode to push and pull the furnace shell in a two-way mode, whole-circle accurate grinding is achieved during resetting, and six sets of air cylinder lead screw adjustable clamping jaws conduct internal and external synchronous supporting. The outer supporting cylinder is prevented from deformation, secondary clamping is not needed in the whole process, butt joint of multiple sections of furnace shells is completed at a time, continuous filling of a longitudinal weld bead can be completed when a circular seam is still in a high-temperature plastic stage through instantaneous switching of clamping and stopping, and the welding quality of a T-shaped connector area is improved.

The invention relates to the technical field of valves, in particular to a high-pressure-resistant quick opening and closing flat valve which comprises a valve body, a first valve seat, a second valve seat, a valve plate and a valve rod. The first valve seat and the second valve seat are arranged in a medium channel of the valve body, the valve plate is arranged between the first valve seat and the second valve seat in a sealing and sliding mode, and the valve rod is in driving connection with the valve plate. The middle of the valve rod is slidably connected to a valve deck in the middle of the top of the valve body, the hand wheel driving mechanism is connected to the upper portion of the valve deck, a pressure relief pipeline is arranged on the valve body, and the two ends of the pressure relief pipeline are communicated with a high-pressure side cavity, back to the valve plate, of the first valve seat and a low-pressure side cavity, back to the valve plate, of the second valve seat respectively. The pressure relief pipeline is provided with a pressure relief control valve used for controlling connection and disconnection of the pressure relief pipeline. The pressure difference generated by high-pressure fluid on the two sides of the valve plate can be balanced before the valve plate is opened, the main factor causing huge operation torque is fundamentally eliminated, opening and closing of the valve plate are extremely labor-saving and rapid, and rapid opening and closing under the high-pressure working condition are achieved.

The invention provides an agricultural machine four-wheel-drive control method and system for optimizing riding comfort, and relates to the technical field of agricultural machine control, and the method comprises the steps: building a dynamic model of a distributed four-wheel-drive agricultural machine based on basic parameters; an optimization model predictive control algorithm containing constraint conditions is constructed by taking the vehicle body acceleration and the driving stability as optimization targets; solving the dynamic model to obtain the optimal tire force distribution of each wheel of the distributed four-wheel-drive agricultural machine; on the basis of a tire magic formula model, through a reverse lookup table, converting the wheel longitudinal force in each optimal tire force distribution into a target wheel slip rate; designing a slip rate tracking controller to enable the actual wheel slip rate to track the target wheel slip rate; based on a tracking result of the slip rate tracking controller, calculating an independent driving torque instruction of each wheel of the distributed four-wheel-drive agricultural machine; independent drive torque commands are executed to control each wheel drive torque to track an optimal tire force distribution.

The application relates to a kind of decoupled chassis robust control methods for road adhesion disturbance, comprising: based on the dynamics characteristics of each wheel drive, brake and steering independently controllable decoupled chassis system, through demand force reachability analysis, the realization ability of different control action combinations to target force is analyzed, and the control action decomposition feasible region of target force in ideal state is constructed;Calculate the influence of different longitudinal and lateral control actions on target force and the control accuracy of vehicle motion state under road adhesion disturbance, and construct the influence model of adhesion coefficient disturbance on the whole vehicle state under disturbance condition;Based on the framework of multi-objective optimization problem, the robust control algorithm for decoupled chassis is designed, and the redundant tire force control mechanism of decoupled steering chassis is used to generate control actions that minimize the influence of adhesion disturbance on the whole vehicle state.The application can fully utilize the redundant characteristics of decoupled chassis control action, and significantly improve the control robustness of vehicle under complex road adhesion conditions.

The invention discloses a planetary structure type flexible gear ring diaphragm pump, and belongs to the technical field of pumps, the planetary structure type flexible gear ring diaphragm pump comprises a pump body, a motor assembly is arranged in the pump body, an output shaft of the motor assembly is connected with a sun gear, a plurality of planetary gears are rotatably connected in the pump body, a flexible gear ring is arranged in the pump body, and the planetary gears are meshed and matched with the sun gear and the flexible gear ring. A fluid chamber seat is fixed at the end part of the pump body, a three-dimensional diaphragm is fixed in the fluid chamber seat, a plurality of flexible diaphragm chambers are arranged in the three-dimensional diaphragm along the outer circumferential direction of the flexible gear ring, and one-way valve groups are arranged on the flexible diaphragm chambers; planetary transmission and the positive displacement pump principle are combined, controllable deformation of a flexible component is used for replacing a traditional rigid connecting rod or eccentric wheel mechanism, and a brand-new internally-balanced driving mode is provided for fluid conveying; compared with a traditional eccentric wheel driving diaphragm pump, stress of the planet wheels on the two sides is always in internal balance, the running stability and reliability are greatly improved, and the motor cost is optimized.

The utility model provides cleaning equipment. The cleaning equipment comprises a main machine body, driving wheels and obstacle crossing wheel devices. The driving wheels are arranged on the main machine body and used for driving the main machine body to move; the obstacle crossing wheel device comprises a driving mechanism and an obstacle crossing wheel, the driving mechanism is used for driving the obstacle crossing wheel to rotate, the obstacle crossing wheel is located in front of the gravity center of the cleaning equipment, the obstacle crossing wheel comprises an obstacle crossing state and an avoiding state, and in the obstacle crossing state, the obstacle crossing wheel rotates to be supported on the ground; and in the avoiding state, the obstacle crossing wheels are separated from the ground. The obstacle crossing of the cleaning equipment can be realized under the pushing of the driving wheel only by driving the obstacle crossing wheel through the driving mechanism, the number of types of parts for realizing the obstacle crossing function is small, the structure is simple, and the operation stability of the cleaning equipment is favorably improved.

This invention provides a hybrid power drive device and a vehicle having the same. The hybrid power drive device includes an engine, a first motor, a second motor, and a compound planetary gear set. The output end of the engine is driven to the motor shaft of the first motor. The motor shaft of the second motor drives the wheels to rotate. A first sun gear meshes with a first planetary gear, and both the second sun gear and the first planetary gear mesh with a second planetary gear. The second planetary gear meshes with a ring gear, and the ring gear is driven to the wheels. A brake controls the operating state of the second sun gear, a first clutch controls the engagement or disengagement of the engine output end with the first sun gear, and a second clutch controls the engagement or disengagement of the engine output end with the planetary carrier. The technical solution provided in this application solves the problem in related technologies where hybrid power drive devices struggle to simultaneously achieve efficiency and compactness across multiple operating modes, as well as flexible drive switching.

The invention provides a film tearing mechanism and film tearing equipment, the film tearing mechanism is used for tearing a film layer covering the surface of a product, the film tearing mechanism comprises a connecting plate, a film lifting module, a clamping module, a driving module and an air knife module, and the film lifting module, the clamping module, the air knife module and the driving module are all arranged on the connecting plate. The film lifting module comprises a film lifting wheel and a film lifting wheel driving assembly connected with the film lifting wheel, and the film lifting wheel driving assembly is used for driving the film lifting wheel to move to or away from the surface of the product and further used for driving the film lifting wheel to move on the surface of the product in a reciprocating mode so that the corners of the film layer can be separated from the product; the clamping module comprises a clamping jaw group, and the clamping jaw group is used for clamping corners of a film layer; the air knife module is arranged on one side of the clamping module and comprises an air knife, and the air knife is used for blowing air between the film layer and the product after the corners of the film layer are separated from the product, so that the film layer is pre-separated from the product; and the driving module is connected with the clamping module, and the driving module is used for driving the clamping module to move, so that the film layer is separated from the product.

The invention relates to a Method of controlling a steer-by-wire steering system (1) of a road vehicle having at least two steerable road wheels, wherein two steerable road wheels are connected to each other via a rack (6) moved by a road wheel actuator (5), the method comprising the following steps a) Determining a target rack position of the rack (6) based on a steering input from a driver; b) Calculating a predicted yaw rate (10) of the road vehicle based on a predicted steering wheel angle; c) Measuring an actual yaw rate (11) and calculating a difference between the predicted yaw rate (10) and the actual yaw rate (11); d) Determining a first value for rack position control based on the difference of the actual yaw rate (11) and the predicted yaw rate (10) in a first controller (9); e) Calculating a steady state yaw rate (15) of the road vehicle based on the steering wheel angle, the velocity of the road vehicle and the lateral and longitudinal acceleration; f) Calculating a difference between the steady state yaw rate (15) and the actual yaw rate (11); g) Determining a second value for rack position control based on the difference of the actual yaw rate (11) and the predicted steady state yaw rate (15) in a second controller; h) Calculating a modified rack position request for the road wheel actuator (7) based on the sum (17) of the first and second values and the target rack position.

The invention provides an AGV four-steering-wheel automatic calibration system and a dynamic compensation method, and belongs to the field of mobile robots and automatic control. According to the method, the vehicle pose is detected in real time through laser ranging, and meanwhile, the steering wheel angle is automatically compensated by combining analysis and calculation of the turning radius, so that special errors are eliminated through 90-degree rotation and translation detection, and efficient and accurate calibration is achieved. The AGV four-steering-wheel automatic calibration system comprises a vehicle end device which comprises at least two sets of sensors installed on the head of a vehicle in parallel; the fixed end equipment comprises a receiving panel and a coordinate calibration module; the control unit is used for receiving the detection data of the sensor and the light spot coordinate data so as to complete vehicle pose calculation, trajectory analysis and dynamic adjustment of the steering wheel angle; the system interacts with the vehicle end device, the fixed end device and the steering wheel driving module in real time, and is internally provided with a pose calculation unit, a track fitting unit, a radius analysis unit, a dynamic compensation calculation unit and a rotation detection unit.

A torque wrench for adjusting sound, comprising a plastic handle, and further comprising: a main pipe, and a ratchet actuating component and a rotation limiting assembly arranged on the main pipe, wherein one end of the main pipe is rotatably connected in the plastic handle; the rotation limiting assembly comprises a plurality of sink grooves evenly arranged in an annular manner on a side wall of the main pipe, and the rotation limiting assembly is configured to limit rotation of the plastic handle relative to the main pipe; the ratchet actuating component is configured to rotate a bolt, and the rotating plastic handle adjusts the preset torque of the actuating component; a placement hole is arranged on a side wall of the plastic handle, and a first steel ball and a small spring are arranged in the placement hole.

The invention discloses a multifunctional variable-diameter nuclear waste conveying pipeline cleaning robot, and relates to the technical field of nuclear industry pipeline maintenance equipment.The multifunctional variable-diameter nuclear waste conveying pipeline cleaning robot comprises a walking module, a variable-diameter module, a cleaning module and a detection module, and all the modules are integrated on a machine body frame; a collaborative linkage design of a series elastic driver (a main driving end) and a bionic joint leg (a driven wheel end) is adopted as the core, the main driving end adapts to nuclear pipeline advancing impact through elastic buffering, and the driven wheel end adapts to a complex inner wall through flexible posture adjustment. The variable-diameter module is linked with a connecting rod to adjust the radius of the wheel set to realize pipe diameter self-adaption; the cleaning module integrates a rotating brush and a cavitation jet device to remove radioactive scales; the detection module carries a sensor and a camera to monitor the pipeline state. The robot can complete cleaning and monitoring of nuclear pipelines of multiple specifications, and stable and smooth operation of the robot in pipelines of different pipe diameters is guaranteed through linkage of the series elastic drivers and the bionic joint legs.

An auxiliary driving apparatus of a four-wheel drive (4WD) hybrid electric vehicle is provided. The auxiliary driving apparatus is a series-type driving apparatus to which a longitudinal engine is applied, and a driving mechanism including an engine, a motor, and a plurality of clutches is applied to the front wheel side of a hybrid electric vehicle with a motor applied to the rear wheel side as a main driving source, so that the series mode can be implemented in the rear wheel 2WD mode, and the 4WD (AWD) EV mode can be driven when the engine is stopped.

The invention discloses a mandrel-free aluminum alloy wheel spinning machine device, which comprises a main shaft driving mechanism (100), a power chuck (200), a spinning roller seat (300), a spinning roller driving mechanism (400), an inner support spinning roller (500) and a driving mechanism, and is characterized in that the main shaft driving mechanism (100) is driven by a motor to drive the power chuck (200) and an aluminum alloy hub blank to rotate at a high speed; the power chuck (200) is used for clamping a product, and clamping jaws on the power chuck (200) achieve clamping of aluminum alloy wheels of different specifications by adjusting the installation position or replacing the installation position. The spinning roller driving mechanism (400) realizes X-direction and Z-direction servo feeding movement; the inner supporting spinning roller (500) and the driving mechanism achieve servo feeding movement in the X direction and the Z direction. According to the core-mold-free spinning equipment, the spinning production process of an aluminum alloy wheel can be achieved under the structure without a core mold, the process is simplified, and the cost is saved.

The utility model relates to the technical field of operating platforms, in particular to a lifting-controllable mobile operating platform which comprises a mobile seat and an operating table arranged on the mobile seat in a lifting mode through a scissor connecting rod, and more than two first wire guide wheels are evenly arranged on the scissor connecting rod around the vertical center line. More than two second wire guide wheels are uniformly arranged on the operating table around the vertical center line of the scissor connecting rod; the movable seat is provided with a driving assembly and more than two grooved wheels with shafts, the grooved wheels with the shafts correspond to the second wire guide wheels and are uniformly arranged around the vertical center line of the shear fork connecting rod, the driving assembly synchronously drives the shear fork connecting rod and all the grooved wheels with the shafts to move, and one end of a steel rope is fixed on each grooved wheel with the shaft; and the other end of the steel rope sequentially passes through the second wire guide wheel and the first wire guide wheel and then is fixed on the movable seat. The movable operation platform is simple in structure and ingenious in design, and the three purposes of lifting of the scissor connecting rod, self-adaptive stability maintaining of the balance rope and balance of the operation platform can be achieved at the same time.

The invention discloses a slag cleaning device of a numerical control flame cutting machine, which relates to the technical field of flame cutting machines and comprises a machine tool, flame cutting equipment is arranged at the upper part of the machine tool, a sword grid is fixedly mounted in the middle of the machine tool, and a cleaning mechanism is arranged at the lower part of the machine tool and is used for collecting and cleaning dropped slag. The scraping assembly comprises a dust collecting plate fixedly installed on the lower portion of the machine tool, screws are rotationally installed on the two sides of the machine tool, a driving motor is started to drive the two screws to synchronously rotate in the same direction through a synchronous belt wheel, and a sliding block limited by a sliding groove is forced to drive a scraping plate and a triangular plate to directionally move along the surface of the dust collecting plate; and the cooled slag is automatically scraped and pushed to the conveying belt, and finally the slag is conveyed out by the conveying belt in a centralized manner, so that automatic cleaning is realized, the cleaning efficiency is remarkably improved, the labor intensity and the safety risk are reduced, the cleanness of the area below the sword grid is ensured, and a guarantee is provided for continuous cutting operation.

The application provides a kind of automobile parts drying equipment, belongs to automobile parts technical field.The automobile parts drying equipment includes drying box, pre-drying cavity, conversion cavity and drying cavity are arranged in drying box, pre-drying mechanism is installed on the surface of drying box, for pre-drying to automobile parts, pre-drying mechanism includes lifting platform, first rotating shaft and guide rod, lifting platform is slidably installed in pre-drying cavity, lifting platform surface is rotatably installed with placing disc, for placing automobile parts, electromagnetic iron is fixedly installed in the inner cavity of placing disc.The application is provided with pre-drying mechanism, under the action of the gravity of brake disc, lifting platform can be driven to move down, and through the gear groove, first gear is driven to rotate second rotating shaft, through second gear, third gear is driven to rotate synchronously, and through spline teeth, placing disc is driven to rotate while descending, water droplets on the surface of brake disc are centrifugally spun dry, pre-drying of brake disc is realized, and water stain is avoided to remain.

The utility model discloses an all-terrain new energy agricultural vehicle which comprises a vehicle head, a cab and a loading compartment. The headstock comprises a headstock frame, a headstock cover, a Macpherson independent suspension mechanism, a front driving motor, a front motor controller and a front differential mechanism; the loading carriage comprises a carriage chassis, a carriage body, two rear drive wheels, a Macpherson independent suspension mechanism, a rear drive motor, a rear motor controller, a rear differential mechanism and a DCDC converter. The cab comprises a driving support, a windshield, two vehicle doors, a seat, two battery boxes, a battery control box and a vehicle-mounted charger. The agricultural vehicle is electrically driven, the front drive motor and the rear drive motor are controlled by the two battery boxes respectively, on one hand, electricity is saved so as to facilitate longer endurance, on the other hand, time-sharing four-wheel drive can be achieved, and all-terrain running can be achieved by combining wheels, adopting a Macpherson independent suspension mechanism and arranging a differential mechanism; in addition, the vehicle door is arranged to be a semi-sealed door and a full-sealed door, and the driving requirements under different working conditions are met.

The invention discloses a multi-speed steering system, a control method and a wheeled vehicle, the system comprises an input shaft, an output shaft, a four-wheel drive clutch and a multi-speed steering clutch, the four-wheel drive clutch and the multi-speed steering clutch are coaxially arranged on the input shaft, and when the four-wheel drive clutch is in a combined state, power of the input shaft is transmitted to the output shaft at a first transmission ratio; when the multi-speed steering clutch is in the combined state, the power of the input shaft is transmitted to the output shaft at a second transmission ratio, and the second transmission ratio is smaller than the first transmission ratio; the combination state of the four-wheel-drive clutch and the multiple-speed steering clutch is configured to be in one-to-one correspondence with the two-wheel-drive mode, the normal four-wheel-drive mode, the multiple-speed steering mode and the fault four-wheel-drive mode of the system. The transmission efficiency, the reliability and the working condition adaptability can be remarkably improved while the steering flexibility and the traction force are guaranteed.

The utility model relates to measuring platform technical field discloses mobile measuring platform for water conservancy project, including mounting seat, the top fixedly connected with measuring table of mounting seat, the top fixedly connected with measuring board of measuring table, the inner wall of mounting seat is provided with moving mechanism, the inner wall bottom of mounting seat is provided with clamping mechanism, the clamping mechanism is for fixed, the moving mechanism includes double -end motor, the bottom fixedly connected with the inner wall bottom of mounting seat of double -end motor, the output fixedly connected with driving wheel of double -end motor, the outer wall of driving wheel is connected with track having engaged, the utility model discloses, through opening double -end motor, makes driving wheel drive track and driven wheel rotate, through support support sprocket, sprocket supports track, makes track be able to preliminary tension, through spring support swivel column, makes track be able to tension in different road conditions, and practicality enhances.

The utility model discloses a printer cutting knife drive mechanism, including installation support, the fixed shearing piece and movable shearing piece of being located on the installation support adaptation, with movable shearing piece transmission connection's rack, with the first intermittent wheel and second intermittent wheel of rack alternate meshing, driving part, driving part can drive the reverse rotation of first intermittent wheel and second intermittent wheel, when first intermittent wheel and second intermittent wheel are meshed with rack respectively, rack moves back and forth between first intermittent wheel and second intermittent wheel, drives movable shearing piece reciprocation, makes shearing assembly repeatedly open and shut and carries out shearing, such design, only relies on driving part and realizes the open and shut shearing function of driving shearing assembly to realize one -way rotation, effectively reduced the operation accuracy demand of driving part, avoids in long -term high frequency operation because of mechanical matching error and leads to driving part action jam and influences shearing effect, can effectively guarantee the continuous stable operation of equipment.

The utility model discloses a kind of automatic production line carrier stable in-out temporary storage, the utility model uses servo motor, telescopic displacement air cylinder, photoelectric sensor, main and auxiliary clamping mechanism, guiding auxiliary mechanism, counterweight, chain, guide rail, the use of compression belt wheel drive, can be automatically collected, temporary storage, stable warehouse outlet to carrier according to production line requirement, through the installation transmission belt, clamping and transmission air cylinder, guide plate realize the stable reception, clamping push of online carrier;Through photoelectric induction control, servo motor drives lifting warehouse, realize carrier up and down movement pause storage, temporarily can realize 7 layers carrier storage sequencing;Through instruction control, clamping conveying mechanism can realize orderly release warehouse outlet. Equipment and production line height connection can be completed and fixed by footing adjustment.

The utility model belongs to the field of desulfurization equipment, concretely relates to a flue gas circulating fluidized bed dry method desulfurization equipment, including the casing, the inside of casing is connected with the connecting seat through screw thread, the upper end fixedly connected with support rod of connecting seat. The utility model of connecting seat's effect is through the design, flue gas is input through the connecting seat, then can input compressed air under the action of air compressor, and the dry absorbent in the material box can enter the inside of rotating pipe and output through the nozzle and contact with flue gas, the chemical reaction of absorbent and sulfur dioxide generates solid sulfate, thereby realizes the desulfurization purpose, in the output process of dry absorbent, can drive the driving wheel to rotate under the action of motor, the rotation of transmission wheel and connecting shaft is realized by the rotation of driving wheel drive belt, and then the rotation of nozzle can realize the rotary output of dry absorbent, improves the output range and uniformity of dry absorbent and makes dry absorbent and flue gas contact complete desulfurization effect better.

An electric cart includes a cart body, a drive assembly, and a control assembly. The cart body is equipped with wheels at its bottom. The drive assembly is mounted on the cart body and electrically connected to the wheels, while the control assembly is in communication with the drive assembly to regulate its operation, thereby driving the wheels to move. Users can operate the control assembly to control the drive assembly, which in turn drives the wheels to rotate, providing power for the cart's movement and enabling electric travel according to the user's commands. This design significantly reduces the user's physical exertion and enhances convenience in moving the cart.

This utility model relates to the field of material mixing equipment technology, and discloses a precise proportioning and mixing device for soil conditioner raw materials. The inner wall of the mixing tank is provided with a mixing chamber, and the inner wall of the mixing chamber is symmetrically rotatably connected to a mixing shaft. This utility model improves the proportioning accuracy of materials by providing a dispersion chamber on the inner wall of the mixing tank and using the dispersion chamber to disperse the materials before mixing. The mixing shaft drives the rotation of the transmission gear, which in turn drives the transmission belt to rotate. Then, the transmission gear drives the turntable and push rod to perform circular motion. Next, the cross sliding plate and the sliding frame achieve reciprocating sliding through the circular motion of the push rod. The meshing of the gear and the rack enables the worm gear to drive the rotation of the worm wheel. Finally, the worm wheel drives the dispersion screw to rotate and disperse the materials. Through the reciprocating rotation and sliding motion, the dispersion screw effectively disperses the materials evenly on the inner wall of the mixing chamber for mixing.

The application discloses a steel structure support beam mounting equipment, which comprises a support bearing structure, a lateral adaptation assembly, an elastic guiding and positioning assembly, a self-adaptive roller driving and conveying assembly, a screw adjusting base assembly and a power transmission linkage assembly. The support bearing structure comprises a support frame, and a U-shaped plate is arranged at the top of the support frame; the lateral adaptation assembly is arranged in a groove on the surface of the U-shaped plate and comprises an arc-shaped plate, an L-shaped plate fixed to the end of the arc-shaped plate and an extension rod fixed to the surface of the L-shaped plate; the elastic guiding and positioning assembly comprises an insertion rod inserted into the end of the extension rod, and a second spring is arranged in the extension rod; the self-adaptive roller driving and conveying assembly comprises a second roller, a first roller and a driving power piece; the screw adjusting base assembly comprises a screw ring screwed to the top of the support frame, and a sleeving ring is arranged outside the screw ring; and the power transmission linkage assembly comprises a U-shaped rod fixed to the surface of the sleeving ring and fixed to the surface of the extension rod at the other end. The equipment is self-adaptive to the two sides of a flat link, can adjust the top holding position of the roller, ensures stable conveying of the flat link and has high adaptability.

The invention relates to the technical field of asphalt concrete, and discloses an asphalt concrete joint processing flatness detection device, which comprises a plurality of support rods I rotatably connected to the outer walls of a plurality of movable rings, and a plurality of support rods II rotatably connected to the outer walls of a plurality of fixed rings; as the linear speed of the wheels running on the old road surface is larger than that of the wheels on the other side, the centrifugal force borne by the balancing weight on the side is large, the balancing weight is far away from the supporting shaft, when the balancing weight moves, the connecting position of the first supporting rod is driven to be far away from the supporting shaft, and at the moment, the second supporting rod rotates around the connecting position of the second supporting rod and the fixing ring; movement of a movable ring drives a movable rod to get close to a side plate, mutual friction between the movable rod and the side plate is caused, finally, the speed of a supporting shaft is reduced, further, the speed of wheels on the side of the old road surface is reduced under the action of the mechanism, and therefore the situation that friction force is different on the new road surface and the old road surface is reduced. And the influence of the deviation of the detection route on the detection result is avoided.

The utility model discloses a processing production line device which comprises a support module and a transmission module, a detection module, a rejection module and a transfer module which are installed on the support module, the support module comprises a top frame and a supporting frame, and the top frame is fixedly installed on the supporting frame; the conveying module comprises a first roller, a second roller, a driving motor, a first conveying belt and a second conveying belt. The first roller and the second roller are installed at the two ends of the top frame respectively. According to the processing production line device disclosed by the utility model, the transmission module, the detection module, the removal module and the transfer module of the bracket module are linked, so that the functions of transmission, detection, removal, transfer and the like are integrated on one production line, and the processing production line device has the advantages of stable structure, high production efficiency, high practicability and the like.

The application discloses a hydraulic control cog-type clutch four-wheel drive mechanism and a working method thereof, and belongs to the technical field of four-wheel drive mechanisms.The hydraulic control cog-type clutch four-wheel drive mechanism comprises a four-wheel drive piston and a hydraulic cylinder forming a sealed hydraulic cavity, wherein the hydraulic cavity is connected with a main oil path, the main oil path is provided with a switch valve, and the main oil path supplies oil to the hydraulic cavity when the switch valve is opened; the hydraulic cylinder is provided with an oil discharge hole; the oil discharge hole is communicated with the hydraulic cavity and discharges oil to a gearbox; the end faces of the four-wheel drive piston and the four-wheel drive output shaft are respectively provided with trapezoidal teeth capable of being engaged; the four-wheel drive output shaft is connected with a transmission output shaft through a mandrel; and the mandrel and the transmission output shaft realize radial positioning constraint of the four-wheel drive output shaft through a cylindrical roller bearing.The four-wheel drive piston is controlled by hydraulic pressure, the four-wheel drive piston and the four-wheel drive output shaft are combined or separated, power switching between two-wheel drive and four-wheel drive is realized, the tooth part structure of the cog-type clutch is designed, the cog-type clutch realizes self-centering function through the tooth end face inclination angle, and the mechanism realizes stable engagement, accurate limiting and self-locking function.

The invention discloses a modularized self-propelled large-flow trailer fire monitor device, and belongs to the technical field of fire rescue facilities. Comprising a frame platform; the foam power unit is arranged on the frame platform; a jet liquid introduction mechanism; a main fire monitor seat rotating mechanism and a main fire monitor; a traveling mechanism; the arm pulling device is characterized in that the walking mechanism comprises at least one pair of basic walking wheels, a pair of folding and unfolding type or lifting type supporting wheels, a pair of basic walking wheel driving devices and a pair of basic walking wheel lifting action devices; the pair of basic walking wheels are arranged on the pair of basic walking wheel driving devices respectively and hinged to the front side and the rear side of the middle of the frame platform in the length direction through the pair of basic walking wheel driving devices and the pair of basic walking wheels. The structure has the advantages that recoil generated when a fire monitor sprays is fully resisted, the problem of backward sliding of the frame platform is completely eradicated, interference of extreme situations of a disaster relief site on the pull arm hook support is avoided, good conciseness of the pull arm hook support is facilitated, and the long-lasting service life is guaranteed.