64results about How to "Avoid excessive wear" patented technology

The utility model discloses a single battery and relates to the technical field of batteries, the single battery comprises a shell and a cover plate assembly, the end part of the shell is provided with an opening, the outer side wall of the shell at the opening is shrunk inwards, the cover plate assembly is welded at the opening of the shell, and a welding bulge is formed between the cover plate assembly and the shell, the thickness of the welding protrusion is smaller than or equal to the maximum distance that the outer side wall, at the opening, of the shell shrinks inwards. In the technical scheme provided by the embodiment of the invention, the welding bulge formed by welding the cover plate assembly and the shell is arranged at the sunken position of the shell, and the welding bulge does not exceed the outer surface of the shell, so that the situation that the battery cannot be flatly placed due to the convex position of the welding bulge when the battery is laterally placed is avoided; and the outer coating film at the welding bulges is abraded due to overlarge local stress, so that the problem that the outer coating film is seriously abraded due to large contact local stress of the welding bulges between the adjacent battery monomers when a plurality of battery monomers form a module is solved.

The utility model provides a tricycle brake disc relates to brake disc technical field, including the support shell, the top fixedly connected with two support blocks of support shell, the top of support block is established with the axle hole, the bottom fixedly penetrates to the bottom of support shell of axle hole, the top of support shell is provided with the rotating lever, the top fixedly connected with the rotating plate of rotating lever, two the top of rotating plate is provided with the support plate, the inner wall rotationally connected with the axle of axle hole. The utility model, through fixedly connecting two support blocks in the top of support shell, and establishing the axle hole in the top of support block, makes rotating lever can drive rotating plate to carry out effective rotation control, the rotary connection of rotating plate and support plate makes whole brake system can realize more even brake force distribution, especially, in the design, the inner wall fixedly connected baffle of brake shell's one side, and fixedly connected through the spring, makes baffle can rebound quickly in the brake process, ensures that the contact of brake shoe and brake disc is more even.

This utility model discloses a pulse dust collector, belonging to the field of dust removal technology. It aims to solve the problem that in existing pulse dust collectors, the filter bags wear down when handling dust-containing gas. Furthermore, the different sizes of dust particles entering the dust collector cause the filter bags to wear down even faster when filtering large dust particles, ultimately affecting the dust removal efficiency of the pulse dust collector. The device includes a pulse dust collector body, with a high-pressure air pump installed at the upper end. A filter mechanism is installed at the air inlet at the lower end of the pulse dust collector body. The filter mechanism includes a connecting plate connected to the lower front side of the pulse dust collector body. A dustproof net is fixedly connected to the middle of the connecting plate. Mounting blocks are fixedly connected to the upper and lower ends of the left and right sides of the connecting plate. Support blocks are fixedly connected to the four corners of the left and right front sides of the pulse dust collector body at the air inlet.

The utility model discloses a cleaning mechanism of a forming machine, which belongs to the technical field of forming machine cleaning and comprises a forming machine body and a cleaning mechanism main body arranged on the forming machine body. The cleaning mechanism body comprises a cleaning piece used for cleaning the forming machine body, a driving piece used for driving the cleaning piece to move and a mounting frame used for mounting the driving piece. A mounting plate is arranged on the forming machine body, and the mounting frame is detachably connected with the mounting plate; the output end of the driving part is in transmission connection with the cleaning part so as to drive the cleaning part to reciprocate in the direction parallel to the to-be-cleaned surface of the forming machine body. Compared with a manual cleaning mode and a traditional mechanical cleaning mode, the cleaning mechanism of the forming machine with the structure has the advantages that the cleaning efficiency is greatly improved, the cleaning time is shortened, and continuous and stable operation of the forming machine is guaranteed.

This utility model relates to the field of soil research technology and discloses an equidistant sampling device suitable for the study of soil pollutants in agricultural land. It includes a support plate with a scale fixedly connected to its top. Two I-shaped grooves are formed at the top of the support plate, and two I-shaped sliders are slidably connected to the inner walls of the two grooves. Two pedals are fixedly connected to the tops of the two sliders. The operator first determines the sampling interval according to the research requirements. Then, the operating parameters of the bidirectional motor, such as speed and direction of rotation, are set via the control panel. After starting the bidirectional motor, its output drives a bidirectional screw to rotate. Due to the bidirectional thread characteristic of the bidirectional screw, the two moving sleeves connected to the surface of the bidirectional screw will move in opposite directions at equidistant intervals along the screw. The operator can then observe the position of the pointer on the scale.

The present invention discloses a control method and system for an out-of-furnace heat preservation roller table. The method includes: arranging a first heat detector beside the starting roller of the heat preservation roller table and a second heat detector beside the end roller of the heat preservation roller table. The first heat detector is close to the heating furnace, and the second heat detector is close to the rolling mill; when the first heat detector detects a billet, switching the roller speed in the heating furnace to keep it synchronized with the speed of the heat preservation roller table; when the current billet enters the rolling mill along the heat preservation roller table and receives a signal of steel biting, switching the speed of the heat preservation roller table to keep it synchronized with the rolling mill speed; when the second heat detector detects the arrival of the falling edge of the signal, increasing the speed of the heat preservation roller table to make the next billet move forward quickly along the heat preservation roller table until the arrival of the next steel biting signal. By specifically adjusting the speed of the heat preservation roller table, the present invention avoids roller wear and power loss, saves the cost of replacing rollers and spare parts, and reduces work delays and time delays.

A jig for rapidly removing stamping knife aluminum slag comprises a bottom plate, a knife fixing device and two sliding rails are arranged on the bottom plate, the two sliding rails are arranged in parallel, each sliding rail is provided with two sliding blocks, a driving device is arranged on the bottom plate, the power output end of the driving device is connected with the sliding blocks, and the power output end of the driving device is connected with the sliding blocks. The upper side of each sliding block is fixedly provided with a vertical guide rod, each guide rod is sleeved with a supporting sleeve, the supporting sleeves are detachably connected with the guide rods, the portions, on the upper sides of the supporting sleeves, of the guide rods are sleeved with guide sleeves, the upper sides of the guide sleeves are fixedly connected with mounting plates, and the mounting plates are arranged on the guide rods in a sleeving mode. A motor is mounted on the upper side of the mounting plate, and an output shaft of the motor penetrates through the mounting plate downwards and then is connected with a brush head. The rodless air cylinder and the motor are adopted to drive the brush head to move and rotate, automatic reciprocating cleaning is achieved, stamping knife aluminum slag can be rapidly and effectively removed, and the cleaning efficiency is greatly improved.

This utility model discloses a cargo sorting conveyor belt diversion device, which includes a conveyor belt: an image size detector and a control box are fixedly mounted on the surface of the conveyor belt by bolts; a material-distributing plate is installed on the top of the conveyor belt; a material box is arranged on the outer side of the conveyor belt; a diversion hopper is rotatably connected to the surface of the conveyor belt via a rotating shaft; a horizontal plate is welded to the bottom of the conveyor belt; two symmetrically arranged vertical rods are welded to the bottom of the horizontal plate; a U-shaped locking block and a strip plate are arranged below the horizontal plate; and a force-bearing plate is welded to the bottom of the diversion hopper. This utility model uses a frame plate to drive the strip plate to move horizontally, causing the strip plate to push the force-bearing plate and drive the diversion hopper to rotate on the surface of the conveyor belt. Subsequently, the frame plate returns to its original position, and the diversion hopper swings back to its original position under gravity. This achieves the purpose of swinging the diversion hopper to improve the uniformity of cargo distribution when entering the material box, avoiding the need for subsequent shaking of the material box for even distribution.

The utility model relates to the field of clothes rails, in particular to a clothes rail with a protection function, which comprises a clothes rail body and two end plates, the clothes rail body is detachably mounted between the two end plates through a plug-in component, a protection component is detachably mounted at the top of the clothes rail body, fixing components are arranged on the end plates, and the protection component is detachably mounted on the top of the clothes rail body. The clothes rail has the advantages that the surface of the clothes rail body can be effectively protected, so that serious abrasion between the surface of the clothes rail body and the surface of a clothes hanger is effectively prevented, long-term use of the clothes rail body is facilitated, the clothes rail body is convenient to disassemble and assemble, maintenance and replacement are convenient, rubber protection strips are convenient to replace, and the clothes rail is convenient to use and suitable for popularization.

The present application relates to tap processing technical field, specifically to tap chip machine, the inside of machine tool equipment is provided with drive assembly, the front end of drive assembly is provided with polishing clamping disc, the front end of polishing clamping disc is uniformly fixed and installed with multiple clamping shells, the both ends of each clamping shell are slidably installed with moving clamping rod, one end of each moving clamping rod is fixedly installed with clamping block in clamping shell, the other end of each moving clamping rod is rotatably installed with push rod, every two corresponding push rods are rotatably connected, a plurality of limiting holes are uniformly formed on each polishing clamping disc, the hinged end of every two corresponding push rods is installed with sliding rod in limiting hole, and a limiting shell is fixedly sleeved on each sliding rod and located at the rear side of polishing clamping disc. By polishing the edge of tap, the edge burrs of batch taps can be polished and removed, effectively avoiding defects such as scratches and indentation on the surface of workpiece thread during tapping, thereby prolonging the overall service life of tap.

The utility model belongs to the technical field of cement transport vehicles, and discloses a mining cement mixing transport vehicle which comprises a frame and a double-brake guarantee mechanism, a front drive axle, a power source and a rear drive axle are sequentially installed on the frame from front to back, and normally-closed brakes are installed on the front drive axle and the rear drive axle respectively. Each normally-closed brake comprises a brake body, a brake cavity is formed in each brake body, a plurality of brake discs which are coaxially arranged in sequence are installed in each brake cavity, and a spring brake assembly used for pressing or loosening the brake discs is arranged on one side of each brake disc. Hydraulic oil ways are formed between the peripheral walls of the spring brake assemblies and the inner wall of the brake cavity and communicate with a hydraulic oil way on the frame; according to the utility model, the normally closed brake is adopted, and a double-brake guarantee structure is arranged, so that the safety performance of the vehicle in a flameout state or under the condition of sudden failure is guaranteed in all directions, and the stability and reliability of the brake function are guaranteed.

The invention provides a cognitive training device, which relates to the technical field of cognitive training, and comprises a mounting support part, the mounting supporting part is fixedly connected with a foot lifting auxiliary adapter; a foot lifting cognition adjusting part is mounted on the foot lifting auxiliary adaptive part; the foot lifting cognition adjusting part is fixedly connected with two road surface inclination detecting parts; the foot lifting cognition adjusting part is rotationally connected with a ground auxiliary attaching part. The device can assist in foot lifting height detection and training work, effectively improves the leg control force of a patient, can train the action cognition of the patient, better judges the leg lifting height, effectively reduces the risk of stumbling and the like, and solves the problem that an existing cognitive training device is not provided with a leg lifting assisting cognitive control training structure, and the training effect is poor. The problems that when the legs of a patient cannot be controlled to be too high for a long time, leg lifting obstacles are likely to be caused, and the patient is very likely to be stumbled are solved, and meanwhile an auxiliary slope exercise simulation structure does not exist.

The utility model discloses an adjustable multi -section turning tool for turning processing, the tool holder is provided with the tool bar in the inner wall, the outer wall of tool holder is fixedly connected with the rubber pad in the symmetry, the outer wall of tool holder far away from rubber pad one side is opened the sliding slot in the symmetry, the outer wall of tool holder is opened the horizontal groove, the inner wall screw thread connection of tool holder top has the fixed screw, the utility model relates to turning tool technical field, this tool holder, through the tool bar of multiple groups length from short to long arrangement constitutes multi -section turning structure, can complete to the layered removal of bulky excess in one sequence processing, replaces traditional multi -process tool changing processing mode, and the tool changing frequency and processing time are reduced greatly, through the sliding connection of sliding plate and sliding slot, can expose or shield fixed screw quickly, effectively block turning waste entering screw gap, and can also be removed easily when replacing tool bar, reduce the cumbersome step of cleaning waste.

The utility model provides a cold-drawing forming machine for a linear spring, which relates to the technical field of spring processing and comprises a cooling mechanism, and a main body mechanism is arranged at the top of the cooling mechanism. According to the metal wire cold-drawing device, lubricating oil in the cooling box can be cooled under the action of the cooling device, the circulating pump and the cooling pipe, and then the cooled lubricating oil is conveyed to be attached to the surface of a metal wire under the action of the conveying pump, the conveying pipe and the spray head, so that the metal wire is subjected to cold-drawing in the subsequent cold-drawing process; according to the cold-drawing die, friction between the cold-drawing die and the die is reduced, and heat generated by friction can be absorbed, so that the metal wire and the die are cooled, the problem that the cold-drawing die is seriously abraded due to too large friction force and too high temperature is solved, the service life of the cold-drawing die is prolonged, and the using effect of equipment is improved.

This utility model discloses a low-wear dustproof geared motor, including a mounting base. A dustproof device is provided above the mounting base. A drive motor is fixedly connected to the rear of the mounting base. A reduction gear is provided in front of the mounting base. The dustproof device includes a frame. Dustproof nets are fixedly connected around the frame. A fixing block is fixedly connected to the front of the dustproof net. A stabilizing bearing is provided in the middle of the fixing block. A fan is fixedly connected to the middle of the left and right dustproof nets. First mounting blocks are fixedly connected to the four lower corners of the frame. The reduction gear includes a housing. An input rod is provided at the rear of the housing. This structure improves lubrication and reduces overall wear; it also prevents most dust from adhering to the motor and reduction gear, reducing the impact of dust on the device.

This utility model discloses a double-bladed stamping die in the field of stamping die technology, comprising: an upper die assembly and a lower die assembly arranged vertically. Both the lower part of the upper die assembly and the upper part of the lower die assembly are detachably equipped with cutting strips. Two cutting strips are designated as an upper cutter and a lower cutter, each with a left-right extending blade. The upper and lower cutters are positioned front-to-back in the vertical direction, with their blades aligned vertically. In this double-bladed stamping die, the upper and lower cutters interlock, shearing and punching the material between the upper and lower die assemblies using their blades. This double-bladed shearing and punching method reduces the punching force requirement, prevents excessive blade wear, and improves the cross-sectional quality of the sheared material. Both the upper and lower cutters are detachable, allowing for timely removal and replacement after blade damage, facilitating maintenance and reducing maintenance costs.

The utility model relates to the technical field of industrial dust collecting equipment, and discloses efficient multi-stage filtering industrial dust collecting equipment which comprises a tank body, a supporting frame is fixedly connected to the outer wall of the tank body, a transparent plate is fixedly connected to the outer wall of the tank body, and a cleaning assembly is arranged at the top of the tank body. An inlet pipe is fixedly connected to the outer wall of the top of the tank body, a dust discharging opening is fixedly connected to the bottom of the tank body, an outlet pipe is fixedly connected to the outer wall of the dust discharging opening, a filtering assembly is arranged in the tank body, and the filtering assembly comprises a mounting seat. According to the utility model, the guide plate, the filter bag and the mounting seat are arranged, the guide plate is fixed in the tank body, and the filter screen is arranged below the guide plate, so that the guide plate is introduced into the top of the filter bag, airflow entering the filter bag can be effectively dredged and uniformly dispersed, and the situation that the local airflow is too high in flow speed is avoided; and the local wear of the filter bag is serious.

The application discloses a kind of automatic welding devices for electromechanical facility installation and fixation, it is related to electromechanical welding technical field, the automatic welding device for electromechanical facility installation and fixation includes: feeding mechanism and conveying frame, the discharge end of feeding mechanism is communicated with the inlet end of conveying frame, feeding mechanism is used to convey the welding nut to be welded into the conveying groove of conveying frame;Material turnover mechanism, turnover mechanism is used to overturn the welding nut upright conveying in conveying groove to upside-down state;Clamping mechanism, clamping mechanism is used to move the welding nut after overturning to welding position;Welding mechanism, setting on workbench, welding mechanism is used to weld the welding nut on plate piece;The welding device, by upright conveying first to welding nut, after the overturning of welding nut, avoid welding convex point in conveying process and the excessive friction of conveying groove, to ensure the quality of welding convex point, further guarantee the welding quality between subsequent welding nut and plate piece.

The utility model relates to the technical field of injection molds, in particular to an injection mold capable of controlling the material flow speed. The device comprises a first mold and an adjusting assembly, the adjusting assembly comprises a connecting block, the connecting block is fixedly connected to one side of the first mold, a connecting column is slidably connected to the interior of the connecting block, a rotating groove is formed in the top of the connecting column, and the interior of the rotating groove is in a convex shape; the interior of the rotating groove is rotationally connected with a rotating block, and the rotating block is in a convex shape. According to the injection mold capable of controlling the material flow speed, when injection molding work is carried out, a rotating block can push a limiting block to move downwards through a connecting column, and meanwhile by observing the height difference between a graduated scale and a handle, the limiting block moving downwards can control the size of the inner space of a conveying groove; therefore, the speed and the flow of injection molding materials can be accurately controlled, flexible adjustment can be carried out according to material characteristics, and it is ensured that various types of plastic can be formed in the optimal state.

The utility model discloses a kind of wheel edge reduction gears and axle, wheel edge reduction gear includes shell, planet carrier, sun gear, planetary gear;One end wall is formed in one end of shell, a through hole is set up on end wall, planet carrier is located in the inside of end wall, sun gear is placed between planet carrier and end wall, planetary gear is pivoted on planet carrier and is engaged with sun gear;A adjusting ring is embedded in the inside of through hole, the adjusting ring is threadedly cooperated with the inner wall of through hole, one thrust bearing is respectively arranged between the both ends of sun gear and planet carrier and adjusting ring.The utility model uses adjusting ring to adjust the axial play of two thrust bearings, under the premise that ensuring that sun gear can rotate flexibly, avoid excessive wear caused by play too small of thrust bearing, in turn make wheel edge reduction gear have higher transmission efficiency and better NVH.

The utility model relates to machine tool guide rail technical field discloses a numerical control machine tool guide rail subassembly, including the bottom plate, the bottom plate is fixedly connected with the guide rail, the guide rail is connected with the sliding block of sliding, the fixed plate is fixedly connected on the sliding block, the lower surface of fixed plate is equipped with the box, in the utility model, when the fixed plate drives the sliding block to slide on the guide rail, if the insufficient lubricating oil on the guide rail leads to the friction of sliding block and gyro wheel and increases, once the friction of gyro wheel exceeds the threshold value of torsion spring setting, gyro wheel will rotate on the fixed block and drive the valve ball to rotate in the conveying pipe, when the through hole on the valve ball communicates with the conveying pipe inner chamber, the pressure of air pump will press the lubricating oil in the box into the conveying pipe, and through the cavity and the through hole in the sliding block, and the lubricating oil flows out to the guide rail, this process realizes the instant replenishment of lubricating oil, effectively prevents the guide rail and the excessive wear of sliding block due to the excessive friction, thereby prolongs the service life significantly.

The utility model relates to the technical field of railway transportation equipment and safety, and particularly discloses an external brake device of a track inspection tester, which comprises a supporting mechanism, the supporting mechanism comprises a supporting assembly, and a clamping assembly, a braking assembly and a driving assembly are installed on the supporting assembly. The supporting assembly and the clamping assembly are combined and fixed to a train track inspection vehicle, and the driving assembly is rotationally clamped and embedded in the supporting assembly and drives the brake assembly to abut against a train track. The torsion spring drives the connecting shaft rod to rotate, so that the brake pad is far away from a train track, and normal running of a train is guaranteed; when braking is needed, an operator only needs to rotate the handle, the first push block can be pushed to move through the second push block, then the brake pad abuts against a train track, and rapid and effective braking is achieved. In addition, a first spring in the brake assembly can drive a first push block to be away from a second fixing plate after braking, so that a brake pad leaves a rail in time, and excessive abrasion is avoided.

The utility model discloses a steel belt trimming device which comprises a base, two tool aprons are arranged on the base, cutting knives are fixedly arranged in the tool aprons, a sliding groove is formed in the base, and two through grooves distributed left and right are formed in the upper side face of the sliding groove. Positioning blocks which penetrate through the through grooves and extend into the sliding grooves are installed on the lower side faces of the left tool apron and the right tool apron correspondingly, a threaded shaft is rotationally connected into the sliding grooves, two opposite threads are machined in the threaded shaft, and the two opposite threads are in threaded connection with the positioning blocks correspondingly; the cutter holders can keep synchronous opposite movement, so that the two cutters can be prevented from shifting left and right integrally, excessive abrasion of the cutter on one side is avoided, the service life of the cutters is prolonged, and the cost is reduced; according to the utility model, the tool apron is abutted against the pressure sensor, and a worker can judge whether the cutting tool is greatly abraded or not according to data transmitted by the pressure sensor.

The utility model relates to the technical field of wheel hub detection, in particular to a three-coordinate wheel hub detection tool which comprises two groups of connecting plates which are symmetrically arranged, nylon supporting rods are symmetrically arranged at the tops of the connecting plates, sliding blocks are symmetrically connected in the connecting plates in a sliding mode, and the nylon supporting rods are connected with the sliding blocks in a sliding mode. Pin holes are designed and machined in the two ends of the nylon supporting rod, positioning pins are inserted into the pin holes, pin holes are also formed in the top of the sliding block, the bottom ends of the positioning pins are inserted into the sliding block through the pin holes, and a driving assembly used for controlling the sliding block to slide is installed in the connecting plate. According to the three-coordinate hub detection tool provided by the utility model, the hub is supported by the nylon supporting rods, the distance between the nylon supporting rods is adjusted by the adjusting assembly, and the three-coordinate hub detection tool has the advantages that the applicability is wide, the human input and the time cost are reduced, the equipment abrasion is reduced, and the reliability and the accuracy of product quality detection are improved.

The utility model provides a control equipment of big surface ironing of small pack cigarette relates to tobacco processing technical field, include: underframe, the upper end of underframe is installed with the baffle, is installed with first ironing part and second ironing part on the baffle, is installed with the turnover part between first ironing part and second ironing part, and the turnover part includes mounting plate, riser and roof, is fixedly installed with first connecting seat on riser, and the lower end of first connecting seat is installed with sliding plate, the utility model discloses the cooperation of two groups of independent ironing part and turnover part can complete the continuous ironing operation of small pack cigarette two surfaces automatically, spares the manual turnover link, and the processing period is greatly shortened, and the turnover part supports the movement adjustment of front and back, up and down direction, and the clamping spacing can be adjusted flexibly through the hydraulic rod, can adapt to different size specifications small pack cigarette, expands the application range of equipment.

The utility model discloses a board to board connector female seat, including being equipped with female seat main part, first electrically conductive body and mounting plate, the female seat main part is equipped with installation cavity and the first installation hole of the female seat main part, this first electrically conductive body includes fixed part and clamping part, and the fixed part one end is connected with the first welding portion through the connecting portion, and the other end is connected with the clamping part, the first installation hole includes fixed hole and the spacing hole of the fixed hole same direction and aperture less than fixed hole, when the fixed part and fixed hole hole wall resist and fix with the first electrically conductive body and female seat main part fixed, the mounting plate is fixed in the installation cavity after the connecting portion is set, and the mounting plate makes the clamping part one end butt joint in fixed hole tail end, and the contact gap on the clamping part is on same straight line with spacing hole. Because the fixed hole of larger aperture cooperates with the fixed part, can make the contact gap on the clamping part be located in the middle of installation hole, avoid the easy damage of using when deviating. Also can avoid the shrinkage phenomenon in the forming process.

A method, system, equipment, and readable storage medium for load allocation across multiple units in a hydropower station are disclosed. This invention relates to the field of hydropower generation. Under the constraint of the total active power output of the entire station, an initial population is constructed within a safe range satisfying a preset unit vibration zone. Each individual in the initial population includes a set of load allocation schemes. For each individual, under preset rigidity and objective constraints, Pareto dominance iteration is performed to obtain a Pareto optimal solution set. The objective constraints include minimizing the total station's water consumption for power generation, the lifespan loss of unit equipment, the unit vibration zone crossing time, and the grid peak-shaving command response speed. For each candidate solution in the Pareto optimal solution set, a comprehensive score is determined based on the objective parameter value and preset weight coefficients. Based on the comprehensive score, a target load allocation scheme for the multiple units of the hydropower station is determined from all candidate solutions. This application ensures the safe operation of unit equipment while responding in real-time to changes in renewable energy output and meeting grid peak-shaving requirements.

The utility model provides a kind of multi-station fine adjustment fixer structure, to hold multiple miniature workpieces to carry out processing, it includes: a first movable block, is equipped with a first bevel surface in its first body;A second movable block, is equipped with a first bevel surface in its second body;Two combined elastic components, are set between two first ear blocks and two second ear blocks, so that the first bevel surface and the second bevel surface form a forced slot;And a wedge, is placed in the forced slot, and the wedge is equipped with a combination hole to provide a combination bolt;By the combination bolt being combined on processing platform, and the combination bolt is rotated to let the wedge be displaced downward to force the forced slot, to facilitate the first movable block or / and the second movable block to hold and fix miniature workpiece.

This invention discloses a method and system for optimizing earthwork excavation paths, relating to the field of earthwork engineering technology. The method includes: constructing an initial digital twin model to generate an initial global excavation path; collecting real-time operation response data during the operation of the excavating equipment along the initial global excavation path; identifying the current actual soil characteristics based on the operation response data; when the deviation between the actual soil characteristics and the preset soil attributes at the corresponding location in the initial digital twin model exceeds a preset threshold, calculating the credibility of the current identification result, determining the search space constraint range based on the credibility, and generating a local correction path in real-time to update the initial global excavation path; and using the identified actual soil characteristics as new data samples to iteratively update the initial digital twin model. This invention achieves real-time soil inversion and adaptive path correction based on operation response data, reducing equipment wear and energy consumption, and improving the intelligence level of earthwork excavation operations.

The application discloses a three-grinding-head laser milling machine with adjustable milling and milling extension, relates to the technical field of laser milling machines, and comprises a machine body, a laser leveling device, a laser guiding device, a fixed grinding head assembly, an adjusting grinding head assembly, a driving device, a flatness detection device and a controller. The machine body comprises a rack and a cover shell arranged on the machine body. The laser leveling device and the controller are arranged on the top of the rack. The laser guiding device is arranged on the driving device. The bottom of the rack is connected with a bottom plate. The fixed grinding head assembly, the adjusting grinding head assembly, the driving device and the flatness detection device are arranged on the bottom of the bottom plate. The bottom plate is provided with a distance adjusting device. The adjusting grinding head assembly is arranged on the distance adjusting device. The adjusting grinding head assembly is provided with an inclination adjusting device. The driving device is provided with a height adjusting device. Two adjustable grinding head assemblies are arranged to adapt to different widths of the roadway, so that the flatness requirement can be met by one-time grinding. The inclination adjusting device can adjust the inclination of the grinding head.