375results about How to "Avoid excessive wear" patented technology

The invention belongs to the technical field of pipeline welding seam detection, and discloses a thick-wall pipeline welding seam defect online detection device which comprises a workbench, a first hydraulic cylinder and a supporting ring, a working frame is installed at the telescopic end of the first hydraulic cylinder, two sets of conveying rollers are rotationally installed in the working frame, and a first motor is installed in the working frame; the two conveying rollers are in transmission connection with a first motor through a gear set. The device upwards enters an induction area between micro gratings through a barrier strip, a third hydraulic cylinder is automatically shut down through a controller, the compression distance of a second spring by a limiting ring is kept constant, and when an ultrasonic probe faces workpieces of different sizes, only the telescopic stroke of the third hydraulic cylinder needs to be adjusted, the barrier strip is made to move to a designated position, and the ultrasonic probe can be automatically controlled. The compression stroke of the second spring can be kept unchanged, so that the pressure between the ultrasonic probe and the surface of the workpiece is constant, excessive abrasion of the bottom surface of the ultrasonic probe caused by excessive pressure is avoided, and the service life of the device is prolonged.

The invention discloses a modular power supply efficiency intelligent management method, and aims to record the working state, power output and conversion efficiency of a power supply module in real time through a sensor and monitoring software, carry out system energy efficiency analysis regularly, and can significantly improve the overall performance of a power supply system. Firstly, according to the scheme, by optimizing power distribution and fault early warning, the energy efficiency can be effectively improved, energy waste is reduced, and the operation cost is reduced. Meanwhile, the system can dynamically adjust the load of each module, prolong the service life of equipment, reduce the equipment fault risk through preventive maintenance, and improve the stability and reliability of the system. In addition, an energy efficiency analysis report of the system provides a data-driven decision basis for a manager, helps to discover the potential of efficiency improvement, and guides the future optimization direction. And by reducing energy consumption, the power supply system can also reduce carbon emission, promote sustainable development of enterprises and improve environmental protection benefits.

The invention belongs to the technical field of shaft measurement, and particularly relates to an automobile shaft rod surface detection device which comprises a base and a controller arranged above the base, a polishing mechanism is arranged above the base, a polishing table is arranged below the base, and the polishing table is provided with a lead screw assembly used for driving the base to move. A clamping mechanism used for clamping a shaft rod is installed on the end face of the grinding table, the clamping mechanism can drive the shaft rod to rotate, the grinding device further comprises a side plate, the side plate is arranged above the base, the base and the side plate are jointly provided with a position adjusting mechanism, and the controller is fixedly connected with the side wall of the side plate. By means of the intelligent sensing structure, the position of the grinding mechanism can be automatically adjusted in the grinding process, stable and appropriate grinding pressure on the shaft rod is maintained, meanwhile, whether the grinding efficiency of the grinding mechanism meets use or not can be judged based on the contour of the shaft rod, cooling of the grinding position can be assisted, and stable grinding work is facilitated.

The invention provides an under-actuated unmanned ship dynamic event triggering trajectory tracking control method and system, and belongs to the technical field of trajectory tracking. The method comprises the following steps: constructing a kinematics model and a dynamics model of the underactuated unmanned ship by acquiring motion data of the underactuated unmanned ship; establishing an event triggering state expansion observer based on the kinematic model and the dynamic model; utilizing an event triggering state extension observer to observe an error trajectory of the underactuated unmanned ship under an event triggering condition; establishing a dynamic event trigger controller of the system, designing a virtual control function based on an error trajectory, and solving the virtual control function by using an uncertain adaptive law to obtain optimal longitudinal thrust and steering torque; and the dynamic event trigger controller controls the tracking motion of the under-actuated unmanned ship by outputting the optimal longitudinal thrust and steering torque. According to the invention, stable tracking control of the underactuated unmanned ship can be realized on the basis of ensuring that the number of working times of the actuator is reduced.

The invention discloses an intelligent monitoring control method and system for conveying equipment based on chain tension, and relates to the technical field of conveying equipment.The intelligent monitoring control method for the conveying equipment based on the chain tension comprises the following steps that chain tension characteristic data are obtained; predicting the change of the chain tension at the future moment by using the tension prediction model to obtain the change trend of the chain tension; identifying a chain tension change mode; and operating parameters of the conveying equipment are adjusted based on the recognized key factors. By monitoring the tensioning force of the chain in real time and predicting the future change trend of the tensioning force, the tensioning state of the chain can be adjusted more accurately, it is ensured that the chain runs in the optimal state all the time, excessive abrasion and damage of the chain and a chain wheel are prevented, operation parameters can be automatically adjusted according to the recognized tensioning force change mode, and the working efficiency is improved. And therefore, the performance and the safety of the conveying equipment are improved.

The invention belongs to the technical field of logistics transportation, and particularly relates to an intelligent logistics transportation device and method. Comprising rollers, the two ends of the multiple rollers are jointly connected with arc-shaped side protection plates, and the two arc-shaped side protection plates and the multiple rollers form a curve roller way conveyor; the circle centers of the two arc-shaped side protection plates are coaxial; the top faces of the two arc-shaped side protection plates are provided with baffles consistent with the arc-shaped side protection plates in trend, and the baffle with the large outer diameter is provided with a resistance reducing and damage avoiding assembly. The resistance reducing and damage avoiding assembly comprises an annular air bag, and the annular air bag is arranged at the turning position of the curve roller way conveyor and protects conveyed objects. By means of the resistance reducing and damage avoiding assembly, impact force generated by objects during collision can be reduced through buffering force generated by air in the annular air bag, the objects are prevented from being damaged during conveying, meanwhile, the situation that normal use of the device is affected due to the fact that the device is impacted is avoided, the conveying effect of the device is improved, and the service life of the device is prolonged; therefore, the potential safety hazard of the device in use is reduced.

The invention discloses valve element suspension welding positioning equipment for an EGR (Exhaust Gas Recirculation) valve, and relates to the technical field of welding. According to the valve element suspension welding positioning equipment of the EGR valve, through the design of a composite mechanism, a valve element is placed on the inner side of the clamping mechanism, so that the clamping mechanism plays a role in clamping and fixing the valve element, deviation in the welding process is prevented, and the phenomena that welding points are misplaced in the welding process, the welding points are not attractive, and the welding effect is poor are avoided; the clamping range can be adjusted through the clamping mechanism, so that the application range of components is expanded, the applicability of equipment is improved, after the clamping mechanism is fixed, an electric push rod controls a butt joint mechanism to descend, the butt joint mechanism is in butt joint with the clamping mechanism to press the top of a valve element, and therefore the stability during welding is ensured; and the clamping mechanism is driven to rotate, so that uniform-speed welding is kept in the welding process, the welding quality is improved, and the welding speed and efficiency are improved.

The invention belongs to the technical field of brake pad materials, and aims to solve the problems that the friction coefficient of an existing organic-based brake pad is unstable, so that brake failure is likely to occur, the driving safety is affected, the operation cost is increased due to frequent replacement of the brake pad, and normal operation of rail transit is affected. Therefore, the invention provides the organic track brake pad material with the high friction coefficient and the preparation method thereof. The material comprises 20-30% of thermosetting phenolic resin, 8-15% of bismaleimide resin, 8-12% of polyimide resin, 6-10% of high-strength carbon fiber, 6-10% of aramid fiber, 4-8% of basalt fiber, 3-6% of graphite, 2-5% of molybdenum disulfide, 3-6% of copper fiber, 2-5% of silicon carbide particles, 3-6% of barium sulfate, 2-4% of aluminum oxide, 2-4% of talcum powder, 2.5-5% of a curing agent and 1.5-3.5% of other auxiliaries. The friction performance of the organic track brake pad material is improved under the condition that other performance of the organic track brake pad material is not reduced, the defect of the friction performance of an existing brake pad material is effectively overcome, and reliable guarantee is provided for high-performance safe operation of track traffic.

The invention discloses a cam synchronizing device of a lead bonding machine and a control method thereof, and relates to the technical field of semiconductor sealing and testing, the cam synchronizing device comprises a crochet hook driving motor, a crochet hook assembly, a cam shaft, a cam shaft, a cam shaft, a cam shaft, a cam shaft, a cam shaft, a cam shaft and a cam shaft, the pressing claw platform is arranged on the lower side of the lead screw, and at least one set of pressing claw platform transmission rods are installed on the lower side of the pressing claw platform; the synchronizing wheel driving motor is arranged on the lower side of the pressing claw platform transmission rod, and a cam synchronizing shaft is mounted at the output end; and at least one group of pressing claw platform cams are mounted on the outer side of the cam synchronizing shaft. During working, a cam structure is adopted for action connection synchronization, so that the synchronization reliability can be effectively improved, the system complexity can be reduced, and the product production quality consistency can be improved.

The invention discloses a trash rack grid for hydropower station sewage treatment and a trash holding method thereof.The trash rack grid comprises a trash holding outer frame, the two ends of the trash holding outer frame fixedly communicate with a water inlet and a water outlet correspondingly, and two filtering assemblies used for filtering impurities are arranged in the trash holding outer frame in parallel; the filtering assembly comprises two side plates, and the two side plates are fixedly connected to the two sides of the trash holding outer frame correspondingly. Impurities can be filtered by arranging the first grating plate and the second grating plate and collected in the collecting box, the filtering efficiency can be guaranteed, the two filtering assemblies can be switched by arranging the driving assembly, manual cleaning is not needed, the working efficiency is improved, and the practicability is high. In addition, when the filtering assembly is lifted, the first grating plate and the second grating plate can be turned up towards the two sides, then internal impurities can be helped to be discharged, and then the workload of workers can be greatly reduced.

The invention provides an automobile evaporator split type collecting pipe riveting assembly tool and method, and belongs to the field of automobile machining.The assembly tool comprises a fixing table, a supporting frame, an air pressure driving assembly, an upper pressing die and a lower pressing die, the air pressure driving assembly controls the upper pressing die to move through a telescopic rod, and the lower pressing die is connected with the supporting frame; the collecting pipe is clamped by the upper pressing die and the lower pressing die, buckling teeth on the collecting pipe are bent and pressed through a movable die of the upper pressing die, and riveting of the split type collecting pipe of the automobile evaporator is completed at a time; the assembling method comprises the steps of placing the cover plate and the main plate, positioning the split type collecting pipe of the automobile evaporator, bending the buckling teeth, pressing the buckling teeth and resetting, the multiple buckling teeth are bent and pressed at the same time through the multiple bending teeth on the movable die, and riveting of a section of collecting pipe can be completed through one-time machining circulation of the assembling tool. The production efficiency is obviously improved, and the production period is shortened; in addition, a precise positioning technology and a pressure control algorithm are adopted, and riveting reliability and sealing performance are ensured.

The invention discloses a self-rolling processing type plastic product crushing device, and relates to the technical field of plastic crushing, the self-rolling processing type plastic product crushing device comprises a material guide assembly, the material guide assembly is used for dispersing and feeding plastic products, and a guide groove is fixedly formed in the outer surface of the material guide assembly; the crushing assembly is used for crushing the plastic products; and the discharging assembly is used for guiding out the smashed plastic products, a base is fixedly installed at the bottom of the discharging assembly, and a guide roller is rotationally installed at the top of the discharging assembly. According to the self-rolling processing type plastic product crushing device, a worker pours a plastic product into a guide groove, so that the plastic product makes contact with a material guide assembly in the guide groove, at the moment, the plastic product falls to the position above a crushing assembly through the material guide assembly, and a motor drives a guide roller and the crushing assembly to rotate to crush the plastic product; and the crushed plastic products fall to the bottom of the discharging assembly and are guided out of the discharging assembly along the inclination angle of the bottom of the discharging assembly.

The present invention discloses a grinding device for processing a brake disc, which relates to the technical field of brake disc processing, and comprises a box body and a brake disc body. A placing table is rotatably installed on the top of the box body, and the brake disc body is installed on the top of the placing table. A fixed frame is fixedly installed on one side of the box body, and a mobile frame is arranged on the fixed frame. A first cross bar is arranged on one side of the mobile frame, and a grinding component for grinding the upper and lower surfaces of the brake disc body is arranged on the first cross bar. The grinding device for processing a brake disc realizes reciprocating and uniform grinding of the brake disc body by a surface grinding piece through a series of mechanical linkage structures driven by a driving motor. This mechanized grinding method is more accurate and stable than manual operation, and effectively improves the grinding efficiency and quality.

The utility model discloses a speed chain conveyor line terminal active buffer device, which relates to the technical field of conveyor lines, and comprises a speed chain conveyor line and a transfer terminal, the transfer terminal is arranged at one end of the speed chain conveyor line, and a liftable transfer conveyor line is arranged in the transfer terminal; a material carrying platform plate is placed on the portion, located at the top of the conveying wheels, of the speed chain conveying line, and a first sliding groove is formed in the bottom of the material carrying platform plate. The speed reduction assembly is arranged to reduce the speed of the material carrying platform plate entering the transfer terminal from the speed chain conveying line so as to avoid the situation that the material carrying platform plate suddenly enters the transfer terminal, so that the speed is suddenly reduced, and materials are toppled over or fall off, and the buffering assembly is arranged, so that the displacement under the residual inertia effect can be buffered and protected. Therefore, impact caused by collision is reduced, and conveying of materials on the speed chain conveying line is greatly protected.

The invention belongs to the technical field of cutting machining, and discloses a cutting tool which comprises a main body part and a cutting part, the axis direction of the cutting part is the same as that of the main body part, and the outer surface of the cutting part comprises an auxiliary rear tool face and an outer side tool face which are oppositely arranged in the thickness direction of the cutting part; a front tool face and a main rear tool face which are arranged in an included angle mode are arranged between the auxiliary rear tool face and the outer side tool face, the main rear tool face and the front tool face are connected to form a main cutting edge, a first chamfering face is arranged between the auxiliary rear tool face and the main rear tool face, and the first chamfering face extends towards the direction of the front tool face and is connected with the front tool face to form a first chamfering edge. A second chamfering face is arranged between the outer side tool face and the main rear tool face, the second chamfering face extends towards the front tool face and is connected with the front tool face to form a second chamfering edge, and the first chamfering edge and the second chamfering edge are connected with the main cutting edge. According to the cutting tool provided by the invention, the risks of cutting edge breakage and tool breakage can be reduced, and the service life can be longer.

The invention relates to the technical field of deburring equipment, in particular to an oil cooling type deburring device which comprises a supporting seat, a supporting frame, a grinding assembly, a material taking assembly and the like. And the supporting seat is fixed on the base. The grinding assembly comprises a circular truncated cone, a rotating table, a supporting plate and the like, and the circular truncated cone is driven by a first motor and provided with four first pneumatic clamping jaws used for clamping workpieces. An air cylinder, a vertical plate, moving frames and the like are arranged on the supporting plate, moving and positioning are achieved through a sliding rail and the air cylinder, and a third motor and a first grinding wheel are installed on the moving frames on the two sides and used for grinding. The middle supporting plate controls the second grinding wheel to move and grind through a third air cylinder and a fourth motor. The material taking assembly comprises a supporting column, a material taking rail, a sliding piece and the like and is connected to the supporting frame through bolts, and workpiece taking and placing are achieved. The device is further provided with a cold water spraying pipe and a water pump used for cooling the workpiece in the polishing process. According to the device, through accurate control and positioning, efficient deburring treatment of the workpiece is achieved, and meanwhile the quality and machining efficiency of the workpiece are guaranteed.

The invention provides a drainage robot and an automatic drainage method thereof, and relates to the technical field of drainage robots, the drainage robot comprises a vehicle body, and an electric push rod is fixedly mounted on the top surface of the vehicle body. The submersible pump is driven by the electric push rod to vertically move, the submersible pump can be automatically placed in a water source, the pump does not need to be manually placed in the water source, the operation steps are simplified, the labor burden is relieved, and after drainage operation is completed, through cooperative work of the friction wheel, the friction disc and the sponge column component, the water drainage efficiency is improved. The surface of the submersible pump and a water inlet pore plate are automatically cleaned, stains on the surface of the pump and the pore plate can be effectively removed, the situation that normal work of equipment is affected or drainage performance is reduced due to dirt accumulation is avoided, the manual maintenance frequency of the equipment is reduced through the automatic cleaning function, the efficient operation state of the drainage equipment can be kept, and the service life of the drainage equipment is prolonged. And the service life of the equipment is prolonged, so that the long-term maintenance cost is reduced.

The invention discloses a convenient-to-position cutting machine for fused quartz plate processing, and relates to the technical field of cutting, and the convenient-to-position cutting machine comprises a composite mechanism. According to the cutting machine convenient to position and used for fused quartz plate machining, through the design of a composite mechanism, a quartz plate is placed on the inner side of the movable fixing assembly, and the quartz plate is fixed through the movable fixing assembly, so that the stability during cutting is kept, and the situation that the cutting effect is affected due to deviation during cutting is avoided; during operation, the movable fixing assembly slides in a groove in the top of the composite base and is in butt joint with the saw blade, the saw blade is controlled by the first motor to rotate, the cutting effect on a quartz plate is achieved, the sliding cross beam slides on the two sides of the composite base, the cutting position is convenient to move and adjust, and the sliding frame body slides on the sliding cross beam; and the saw blade is controlled to ascend and descend through the lifting table, so that the saw blade is conveniently attached to the surface of the quartz plate, different operation requirements are met, and normal operation of equipment is kept.

The invention belongs to the technical field of stamping dies, and particularly relates to an automobile door stamping die which comprises a stamping platform, a lower die is fixedly connected to the upper end of the stamping platform, an upper die is slidably arranged over the lower die in the vertical direction, and two stamping heads are rotatably connected to the upper die in a penetrating mode. And the two punching heads are symmetrically arranged. By arranging the stamping speed adjusting mechanism, in the stamping operation process, a temperature sensor in a stamping head can transmit temperature data of the stamping head to a PLC in real time, the position of an L-shaped rod on a rotating disc is further controlled through the PLC, and when the temperature of the stamping head is in a high state, the stamping head is driven to rotate by the PLC. And the hydraulic oil discharged into the hydraulic rod in unit time is less, so that the punching speed of the hydraulic rod for driving the upper die and the punching head to move downwards is reduced, and excessive abrasion of the punching head caused by too high temperature of the punching head is avoided.

The invention relates to the technical field of life cycle traceability, in particular to a full life cycle traceability system and method based on intelligent washing. The method comprises the following steps: acquiring washing clothes and user information, generating an RFID identification code, binding the RFID identification code with the user information, creating a user-clothes binding relationship, performing digital mirror image copying on the binding relationship, generating a clothes data file in combination with a database chain technology, and predicting the service life of the clothes by analyzing clothes state data and predicting the service life of the clothes. And making a personalized washing plan. And executing the washing plan and monitoring the washing result, and finally updating the clothes data file according to the washing effect to generate a washing traceability file. According to the invention, safer and more accurate full-life-cycle traceability operation is realized.

The utility model discloses a laser welding head convenient to operate, which comprises a laser welding main machine, a connector, a connector located at the front end of the laser welding main machine and a welding probe rod located at the front end of the connector, a protection window knob is arranged on the outer wall of the upper end of the laser welding main machine close to the front side, and a welding nozzle is arranged at the front end of the welding probe rod. According to the laser welding head, the novel welding guide device is additionally arranged outside the welding probe rod of the laser welding head, and the welding guide device can replace a welding nozzle to be in contact with a welding position after being adjusted, so that the situation that the welding nozzle is frequently in contact with the welding position during welding and is excessively abraded can be avoided; and the welding guide device plays a role in protecting the welding nozzle and also plays a role in guiding, so that the welding nozzle can move more stably according to the welding track and complete welding operation, dust and dirt at the non-welding position can be cleaned in the guiding process, and therefore the welding effect can be improved.

This invention relates to the field of flatbed semi-trailer technology and discloses a transversely retractable low-bed semi-trailer, including a vehicle body assembly. A traction rotating body and a ladder assembly are respectively provided at both ends of the vehicle body assembly. A rotating hinge is hinged to one end of the traction rotating body near the vehicle body assembly. A second hydraulic cylinder is hinged to one end inside the traction rotating body. Gooseneck opening and closing beams are hinged to both sides of the traction rotating body, and opening and closing connecting arms are hinged to the gooseneck opening and closing beams. This invention uses the movable ends of the first hydraulic cylinders at both ends of the top of the vehicle body assembly to drive the connecting rod to rise and fall, allowing the bottom ball of the connecting rod to extend to the bottom of the vehicle body assembly for support. This reduces wear on the bottom of the vehicle body assembly during retraction and opening / closing, achieving smooth retraction and opening / closing of the vehicle body assembly. Simultaneously, it avoids the problem of severe wear caused by high-load retraction and opening / closing of the opening and closing components inside the traction rotating body.

The invention relates to the technical field of industrial robots, and discloses an industrial robot convenient to disassemble and assemble, the industrial robot comprises a mechanical arm, a clamping jaw and a hydraulic pipe, the clamping jaw is arranged at the top of the mechanical arm, the hydraulic pipe communicates with the outer wall of the clamping jaw, and a rapid disassembly and assembly assembly convenient to disassemble and assemble is arranged at the top of the clamping jaw. The top of the mechanical arm is provided with a positioning assembly used for being matched with the rapid dismounting and mounting assembly to fix the clamping jaw, the outer side of the hydraulic pipe is provided with a sealing detection assembly used for detecting the sealing performance, and through the arrangement of the positioning assembly and the rapid dismounting and mounting assembly, the purpose of rapidly dismounting the clamping jaw at the top of the mechanical arm is achieved; meanwhile, by means of the quick dismounting mode, a worker can quickly replace different types of clamping jaws according to different work tasks, the connection design of the tops of the clamping jaws and the fixing blocks is reasonable, it is ensured that the clamping jaws are stable and reliable in the replacement process, firm fixing of the clamping jaws is achieved, and the working efficiency is improved. And the risk that the clamping jaws are loosened or fall off in the working process is reduced.

The invention discloses an adsorption type efficient dust removal device which comprises an electrostatic dust collector body, a partition type knocking mechanism is arranged on the side face of the electrostatic dust collector body, a blowing mechanism is arranged at the top of the electrostatic dust collector body, and a corona electrode and a dust collection polar plate are arranged in the electrostatic dust collector body. An air inlet and an air outlet are formed in the left end and the right end of the electrostatic dust collector body respectively, a dust discharging opening is formed in the bottom of the electrostatic dust collector body, and the partitioned knocking mechanism comprises a motor, a speed reducer, an upper force roller, a knocking cam, a connecting rod and a compression spring. The partitioned knocking mechanism is installed on the front end face of the electrostatic dust collector body, and the blowing mechanism comprises an air compression tank, a guide pipe and a spray head. The electrostatic dust collector has the advantages of convenience in operation and high dust collection efficiency, and solves the problems that the dust collection efficiency of equipment is influenced by poor cleaning effect of the electrode plate of the electrostatic dust collector and the service life of the equipment is influenced by aggravated equipment wear caused by frequent rapping in the prior art.

The utility model discloses a cable pipe penetrating traction device which comprises an arc-shaped bearing frame, the outer wall of the arc-shaped bearing frame is fixedly connected with a butt joint sleeve, the inner wall of the butt joint sleeve is in threaded connection with a stud, one end of the stud is fixedly connected with an end plate, the outer wall of the end plate is provided with an annular groove, and the outer wall of the end plate is provided with a through hole. The inner wall of the annular groove is fixedly connected with an annular rubber sheet, and the outer wall of the arc-shaped bearing frame is fixedly connected with four sliding sleeves. According to the utility model, the arc-shaped supporting frame, the butt joint sleeve, the end plate, the hanging lug, the traction rope, the annular rubber sheet, the sliding sleeve, the U-shaped clamping piece and the threaded cap are arranged, so that the positions of cables with different thicknesses can be fixed, and the applicability is improved; by arranging the cylinder, the latch sleeve, the first bracket, the second bracket, the locking cap and the pulley, the friction force of the cable body during dragging is reduced, serious abrasion of an outer insulating layer of the cable body is avoided, the cable can be used for pipe bodies with different thicknesses, and the applicability is improved.

The invention relates to the technical field of grinding, in particular to a motor shell polishing and grinding device which comprises a shell, a first grinding assembly and a second grinding assembly are arranged in the shell, and the first grinding assembly and the second grinding assembly are arranged in a bilateral symmetry mode and are the same in structure. The first grinding assembly comprises an upper chain wheel and a lower chain wheel which are arranged in a vertically spaced mode, the axis of the upper chain wheel and the axis of the lower chain wheel both extend in the front-back direction, the upper chain wheel and the lower chain wheel are jointly sleeved with a chain, and a plurality of grinding units are evenly distributed in the circumferential direction of the chain. Each grinding unit comprises a plurality of supporting shafts extending in the front-back direction, the supporting shafts are evenly distributed in the up-down direction and fixedly arranged on the chain, the number of the supporting shafts is larger than or equal to four, rotating rollers are rotationally arranged on the supporting shafts located at the uppermost end and the lowermost end in the same grinding unit, and the two rotating rollers are jointly sleeved with a grinding belt. The service life of the polishing belt is prolonged.

The invention is applicable to the technical field of chemical raw material preparation, and provides polymerization reaction equipment for chemical raw material preparation, which comprises a reaction kettle body, a stirring motor is arranged on the upper surface of the reaction kettle body, a stirring shaft for stirring chemical raw materials is rotatably connected to the top wall of the reaction kettle body, and the lower end of an output shaft of the stirring motor rotatably penetrates into the reaction kettle body. A plurality of feeding pipes are arranged on the upper surface of the reaction kettle body, a batching tank is arranged on the feeding pipes, the bottom of the batching tank is conical and is communicated with the feeding pipes, valve assemblies for controlling feeding are arranged in the feeding pipes, and the lower ends of the feeding pipes rotationally penetrate into the reaction kettle body; according to the chemical auxiliary material feeding device, the L-shaped feeding pipe is controlled to circumferentially rotate at the lower end of the feeding pipe, auxiliary materials in the feeding pipe fall into the L-shaped feeding pipe and then are thrown out, the chemical auxiliary material feeding range is widened, and the polymerization reaction efficiency of chemical raw materials is improved.

The invention relates to the field of cutting devices, in particular to an automatic cable cutting device based on an ultrasonic method, which comprises a bottom plate, and a cutting mechanism for movably cutting a cable is arranged at the upper part of the bottom plate. According to the ultrasonic cutting device disclosed by the invention, the rotating pipe fitting is rotated, so that one abutting wheel is extruded to a gap between the battery cells, and then the rotating pipe fitting is rotated, so that the movable wheel frame drives the gap between the battery cells to correspond to the position of the ultrasonic cutter, and the ultrasonic cutter is used for cutting a protective sleeve at the gap between the battery cells; according to the cable cutting device, a plurality of abutting wheels are adopted to extrude a cable, so that the cable cutting device can perform self-adaptive cutting on the cable with a plurality of strands of battery cells, the phenomenon that the battery cells are damaged is avoided, meanwhile, the excessive abrasion of the ultrasonic cutter is avoided, and the service life of the ultrasonic cutter is protected. And the cable cutting device can perform self-adaptive cutting on the cable with the plurality of strands of battery cells by adopting a plurality of abutting wheels to extrude the cable.

The utility model provides a chemical reaction kettle convenient to clean, which relates to the technical field of chemical reaction kettles and comprises a reaction kettle body, a kettle cover is arranged at the top end of the reaction kettle body, a stirring and scraping mechanism is arranged at the top end of the kettle cover, and a spraying mechanism is arranged in the reaction kettle body. A rotating rod is fixedly mounted at the output end of the first motor, a rotating pipe sleeve sleeves the outer surface wall of the rotating rod, the top end of the rotating pipe sleeve is rotatably mounted at the bottom end of the kettle cover, a first gear is fixedly mounted on the outer surface wall of the rotating pipe sleeve, a second gear is fixedly mounted at the output end of the second motor, and the second gear is in meshed connection with the first gear; two connecting rods are fixedly mounted on the outer surface wall of the rotating pipe sleeve, scraping plates are fixedly mounted on the outer surface walls of the two connecting rods, rotation of the scraping plates can be controlled at any time by arranging a second motor, the interior of the reaction kettle is cleaned, and then the situation that the scraping plates rotate all the time and are seriously abraded is prevented.

The present invention discloses a turbine card-releasing device for drilling, which specifically relates to the technical field of drilling machinery, including a turbine chamber, a turbine arranged inside the turbine chamber, a transmission shaft arranged at the bottom of the turbine, and a claw interconnected with a card slot of a drill pipe, wherein the outer wall of the turbine chamber is provided with a mounting block, one side of the mounting block is provided with a central processing unit, the top of the mounting block is provided with a warning light, one end of the transmission shaft is provided with a cross slot, the inner side wall of the cross slot is slidably connected with a cross block, one end of the cross block is fixedly connected with a transfer shaft, the outer wall of the transmission shaft is provided with a vertical distance adjustment mechanism, the vertical distance adjustment mechanism includes a second fixed plate, one end of the transfer shaft is provided with a connecting mechanism, and also includes a vertical distance acquisition module and a pressure acquisition module. The present invention can realize the precise automatic connection between the claw and the card slot of the new drill pipe, thereby significantly improving the efficiency and continuity of the drilling operation.