132 results about "Machine maintenance" patented technology

The invention belongs to the technical field of workshop scheduling and maintenance combination, and particularly relates to a flexible job workshop production scheduling and machine maintenance combination optimization method and system. The method comprises the following steps: S1, acquiring basic information of flexible job shop production scheduling and machine maintenance joint optimization; s2, taking minimization of the total cost of a production system as a target function, and constructing a flexible job shop production scheduling and machine maintenance joint optimization model; s3, converting the flexible job shop production scheduling and machine maintenance joint optimization model into a Markov decision process, and respectively defining states, actions, state transition and rewards of production scheduling and machine maintenance; s4, designing a joint optimization method based on a digital twinning and double-layer reinforcement learning algorithm based on the Markov decision process, and obtaining a trained agent through training; and S5, applying the trained intelligent agent to an actual flexible job shop production scheduling and machine maintenance joint optimization problem.

The invention relates to a production scheduling and machine maintenance real-time decision-making method based on deep reinforcement learning, and the method comprises the steps: obtaining the operation characteristics of a production workshop and the actual maintenance condition information of a machine, and constructing an integrated optimization model of dynamic scheduling and predictive maintenance based on the operation characteristics and the actual maintenance condition information; acquiring real-time state data of machine operation, predicting the residual service life of the machine by using a deep learning method based on the real-time state data, setting a first threshold value and a second threshold value of the residual service life, and dividing machine maintenance states based on the first threshold value and the second threshold value; constructing a DDQN-based intelligent agent, solving the integrated optimization model based on the intelligent agent, and generating a production scheduling and machine maintenance real-time decision; the intelligent agents comprise a scheduling intelligent agent and a maintenance intelligent agent, and the states of the intelligent agents comprise operation characteristics and remaining service life. Compared with the prior art, the method not only meets the production performance requirement of reducing the total delay, but also optimizes the maintenance cost.

The invention provides a high-voltage power-down display control method, a vehicle control unit, engineering machinery and a medium, and relates to the technical field of electric engineering machinery. The method comprises the steps that a power-off signal of the engineering machine is acquired, the power-off type of the engineering machine is determined according to the power-off signal, and the power-off type comprises normal power-off and abnormal power-off; when the power-off type of the engineering machinery is normal power-off, normal power-off logic is executed, and a display screen of the engineering machinery is controlled to be turned off after high-voltage power-off of the whole vehicle is detected; and when the power-off type of the engineering machinery is abnormal power-off, sending adhesion fault prompt information to a display screen of the engineering machinery, and controlling the display screen of the engineering machinery to be closed after detecting that the whole vehicle is in high voltage. According to the method, visualization of the high-voltage state of the whole vehicle can be achieved through the display screen, and therefore the safety of engineering machinery maintenance is improved.

The invention relates to the field of winding equipment, in particular to a high-speed winding system which comprises a suspension steel collar composed of an outer ring and an inner ring, and the inner ring is rotationally installed in the outer ring; an annular gap between the inner ring and the outer ring is an air passage; the multiple air inlet pipes are distributed in the circumferential direction of the outer ring at equal intervals, and the output ends of the air inlet pipes communicate into the air channel; filtered compressed air is injected into the air channel through the air inlet pipe, so that a radial air film and an axial air film are formed in the air channel, and the inner ring is in a full-suspension state and does not make contact with the outer ring. A steel wire hook is installed at the top end of the inner ring and used for restraining the motion trail of yarn penetrating through the inner ring. By establishing a structure without mechanical friction in the yarn winding process, contact type friction motion in the original yarn winding process is changed into existing friction-free motion, so that the yarn winding and spinning speed is increased, the rotating speed can reach 50000 rpm, and the yield and the yarn quality are greatly improved; meanwhile, according to the design, original friction consumable replacement and frequent machine maintenance work are reduced.

The utility model discloses a special maintenance tool for an electric switch machine, which comprises a detection steel sheet with a rectangular structure, the width of the detection steel sheet is 20mm, and the thickness of the detection steel sheet is 4mm; the equipment key is used for opening a machine cover of the electric switch machine; the sleeve and the solid wrench are used for adjusting the adjusting screw at the tail part of the indication rod; the equipment key is fixed on the upper surface of the detection steel sheet, the sleeve is fixed on the lower surface of the detection steel sheet, and the sleeve and the equipment key are located at the same end of the detection steel sheet; the solid wrench is a groove arranged on the side wall of the detection steel sheet. According to the electric switch machine maintenance tool, the functions of four common maintenance tools in the maintenance operation of the electric switch machine are ingeniously integrated, the tool is convenient to carry, and the working efficiency can be remarkably improved in actual operation. The integral design of the tool is of a T-shaped structure, so that the transverse pen part and the vertical pen part of the tool can be used as a force arm handle during operation, and the convenience of operation is greatly enhanced.

An ink machine maintenance auxiliary device comprises a frame, the top of the frame is provided with a storage base used for containing an ink machine, an oil receiving disc used for collecting waste liquid is arranged in the frame, and an oil passing groove corresponding to the oil receiving disc is formed in the middle of the storage base; the storage base comprises a bottom plate and a support used for supporting the printing ink machine in an overhead mode, and the support is arranged on the oil passing groove in a crossing mode. Compared with the prior art, the printing ink machine is placed on the support, overhead arrangement of the bottom of the printing ink machine is achieved, waste liquid at the waste liquid discharging opening in the bottom of the printing ink machine can be conveniently discharged, an operator does not need to carry the printing ink machine, and time and labor are saved; and meanwhile, liquid such as waste liquid generated in the maintenance process of the printing ink machine can be collected through the oil receiving disc arranged on the frame, and therefore the waste liquid cannot pollute the maintenance device and the ground.

The utility model relates to an auxiliary tool for maintenance of a sealing skin of a sintering pallet, which is applied to the technical field of maintenance of sintering machines, solves the problems that the existing cutting surface is uneven, air leakage is easy to exist at the bonding position, and meanwhile, the problem that the sintering pallet is scratched and secondarily damaged, and comprises a workbench, at least two clamping plates and a fixing piece, the clamping plate located at the lowest end is installed on the workbench, one side face, in the length direction, of each clamping plate is arranged in an inclined face mode, and the inclined faces of every two adjacent clamping plates are located on the same plane. The fixing pieces are distributed in the circumferential direction of the clamping plates, each fixing piece comprises a lead screw and a fastening nut connected to the lead screw in a threaded mode, the bottom end of each lead screw is vertically fixed to the upper end face of the clamping plate located on the lowest layer, and the top end of each lead screw upwards slides and extends to the position above the clamping plate located on the highest layer; the inclined plane cutting device has the advantages that the inclined plane can be directly cut out, the inclined plane is smooth, follow-up glued sealing leather is facilitated, operation is convenient and fast, and the maintenance efficiency is improved.

The utility model discloses agricultural machinery maintenance equipment, and belongs to the technical field of agricultural machinery. The device mainly comprises a body. The storage bin is fixed in the main body and used for adding lubricating oil, one side of the interior of the storage bin is slidably connected with a piston plate, and one side of the storage bin communicates with two corrugated pipes; the clamping mechanism is positioned on one side of the main body and is used for clamping the saw blade; the rotary smearing mechanism is located on one side of the clamping mechanism and used for maintaining the saw blade; according to the agricultural machinery maintenance equipment, a first handrail is gradually pushed, at the moment, the first handrail drives a connecting plate to move towards one side through a sliding block, the connecting plate drives a piston plate to move towards one side through a connecting column, and then lubricating oil in a storage bin enters a connecting shaft through a connecting pipe; lubricating oil in the connecting shaft enters the rotating plate and then is in contact with the sponge pad through the through hole to soak the sponge, so that the cotton cloth stained with the lubricating oil is prevented from being manually held, and the phenomenon that the lubricating oil drips is avoided.

The utility model discloses an equipment maintenance device, and relates to the technical field of maintenance, and the equipment maintenance device comprises a bearing assembly, a moving device, an adjusting mechanism and a handrail; the bearing assembly comprises a chassis and a platform movably arranged on the chassis, and the platform is used for bearing equipment; the moving device is arranged on the chassis and used for driving the bearing assembly to move; the adjusting mechanism is arranged on the chassis and used for driving the platform to ascend and descend. The handrail is detachably installed on the bearing assembly. According to the equipment maintenance device, lifting of the platform can be achieved through the adjusting mechanism, manufacturing and mounting errors of the copying and printing integrated cabinet are made up, it is ensured that the platform and a tray in the copying and printing integrated cabinet are in butt joint without height difference, and therefore it is ensured that the copying and printing integrated machine is pulled out and pushed in smoothly, and maintenance convenience of the copying and printing integrated machine is improved.

The invention belongs to the technical field of jacquard machine maintenance, and particularly provides a heddle polishing device of a jacquard machine, which comprises a polishing box, a rubbing polishing device is arranged in the polishing box, the rubbing polishing device comprises a bottom rubbing table, a top sliding strip, a top rubbing table and a hydraulic interaction assembly, and the bottom rubbing table and the top sliding strip are slidably clamped on the inner bottom wall and the inner top wall of the polishing box respectively. The top rubbing table is arranged on the lower wall of the top sliding strip, the bottom rubbing table and the top sliding strip are in transmission connection with the hydraulic interaction assembly, and the hydraulic interaction assembly and the top rubbing table are arranged in a hydraulic transmission mode. According to the heddle polishing device, the upper wall and the lower wall of the heddle are extruded, rubbed and polished in a clamping and rubbing mode, the heddle is pressed and polished through the special hydraulic pipeline design, the outer side wall of the heddle can be automatically polished through the pressing centering part, a heddle eye can be driven to the polishing groove, polishing of the heddle eye is facilitated, and the polishing efficiency is improved. And multidirectional polishing of the harness wires is realized in a simple extruding and rubbing manner.

The utility model belongs to signal equipment tool technical field, specifically provides a signal machine column sealing device, including the cap, plunger body, telescopic buckle and drive mechanism, the plunger body is connected in cap below, telescopic buckle is installed in the plunger body inside, the plunger body lateral wall is equipped with the buckle hole matched with telescopic buckle, drive mechanism is used for driving telescopic buckle and is stretched out the buckle hole or shrink to the plunger body inside. The signal machine column sealing device provided by the utility model seals the high column signal machine concrete machine column top by plunger body and cap, no longer adopts the concrete, simplifies the plugging construction, effectively prevents the influence signal equipment normal work because of plugging leakage. The plunger body lateral wall is equipped with controllable telescopic buckle, can be with the machine column inner wall and is pasted, prevents the device from falling through stress mode, and the signal machine maintenance is convenient when dismantling.

1. Name of the product under this design: Bottle (Washing Machine Care Liquid‑JDTG). 2. Purpose of this design product: used to install washing machine maintenance liquid. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The invention discloses an intelligent management system for supplying and recycling cutters and tools, which comprises an intelligent host, at least one cutter cabinet and at least one tool cabinet which are electrically connected with each other, and the intelligent host is provided with a scanning and distinguishing device, a touch display input device and a wired / wireless internet connection line, the intelligent host is provided with a material picking program module, a return program module, an old-to-new module, a replenishment program module, a push early warning notification module and a data analysis and report generation module, after an employee distinguishes and confirms, material picking and return or replacement of an old knife / tool with a new knife / tool can be carried out, a manufacturer can scan a bar code of the knife / tool according to replenishment, replenishment can be carried out immediately, and the replenishment efficiency is improved. In addition, the manufacturer can also receive the push early warning notice to carry out machine maintenance or cutter / tool replenishment, and the manager receives data analysis and report generation so as to understand the use condition of the related cutter / tool, so that the omnibearing cutter / tool management and control effect is achieved.

The utility model relates to the technical field of welding machines, in particular to a novel welding machine which comprises a welding machine body, a shell and a heat dissipation net, the welding machine body comprises a bearing plate, a side plate is arranged at one end of the upper side of the bearing plate, and a wiring operation plate is arranged at the other end of the upper side of the welding machine body. A mounting frame is arranged at the inner side positions of the side plate and the wiring operation plate, a circuit component is arranged at the inner side of the mounting frame, a pipeline heat dissipation component is mounted at the inner side of the side plate, a bayonet is formed in the lower end position of the outer side of the shell, and sliding grooves are formed in the lower end positions of the side plate and the wiring operation plate; a fixing plate is arranged in the sliding groove. The pipeline heat dissipation component blows air to the lower side of the circuit component to dissipate heat, the heat dissipation uniformity is improved, the heat dissipation effect of the circuit component is facilitated, the welding machine body and the shell are rapidly detached through the bayonet and the spring bolt, and the welding machine is convenient to maintain.

The present application relates to physical vapor deposition process, especially to the PVD-AlN machine maintenance after the method of re-computer. The re-computer method, including the following steps S1: setting the cavity temperature is 780~820 DEG C and 630~670 DEG C in turn for baking;S2: keep the cavity temperature is 630~670 DEG C, two times into argon and nitrogen, the second time into argon and nitrogen when setting Source DC is 2800~3200;S3: continue to pass into argon and nitrogen, the temperature drops to 450~550 DEG C. The re-computer method, let the cavity of PVD-AlN machine in 780~820 DEG C and 630~670 DEG C in turn for baking, two times of baking removes the moisture and impurities of the cavity respectively;Again continue to pass into argon and nitrogen to remove the organic compounds in the cavity and cooling to 450~550 DEG C.

The invention provides a signal generator for CT machine maintenance, and relates to the technical field of test instruments. The signal generator for CT machine maintenance comprises a machine body and a control panel, ventilation assemblies are arranged on the two sides of the machine body, a data interface is in threaded connection in a mounting hole in the front end of the control panel through a connecting sleeve, and the rotating directions of internal and external threads of the connecting sleeve are opposite. The plug of the data interface is in plug-in fit with the socket in the mounting hole, the ventilation assembly drives the rack through the pull rod to drive the air deflector to rotate, meanwhile, the brush is linked to clean dust on the air deflector, and heat dissipation and dust removal are achieved through bolt positioning. According to the device, rapid disassembly and assembly of the data interface are achieved through thread reverse design, the problem that in the prior art, interface disassembly and replacement are complex is solved, the ventilation and dust removal integrated structure can reduce accumulated dust while ensuring the heat dissipation efficiency, and the device is suitable for signal injection and equipment maintenance during CT machine overhaul and has the advantages of being convenient and fast to operate and high in stability.

The utility model relates to a sintering machine, apply in sintering machine maintenance technical field, solved in the process of replacement to the sintering trolley of trouble, hoist trolley operation is unstable, trouble sintering trolley is easy to incline, fall, and there is the problem of hidden danger of safety, including trolley track, sintering trolley and unloading auxiliary frock, unloading auxiliary frock includes erecting on the support frame of trolley track, the flap that rotates and connects on the support frame one end and hydraulic push cylinder, the telescopic end of hydraulic push cylinder is hinged in the other end lower end surface of flap, the main part of hydraulic push cylinder is hinged in the support frame, the upper end surface of flap is provided with the fixing piece for fixing damaged sintering trolley, have trouble sintering trolley fixed firm, operation is stable, can solve the safety problem of sintering machine trolley on -line replacement, reduce the safety hidden danger of field work environment, improve the effect that replacement efficiency.

The utility model discloses a vending device for vacuum-packaged prefabricated dishes, which belongs to the technical field of vending machines and comprises a shell frame, and a food making component, a food delivery component, a machine maintenance window, a food outlet, a payment window and a food ordering screen are mounted in the shell frame. The food making assembly comprises a bag opener, a squeezer, a heater and a fetching clamp which are sequentially arranged from bottom to top, the food delivering assembly comprises a dinner plate storage box and a food delivering device, a plurality of dinner plates are stored in the dinner plate storage box, the food delivering device is provided with a fixed part and a sliding part, and the fixed part and the sliding part are connected with each other. The fixing part is installed on the side wall of the shell frame and located below the bag opener. According to the selling device for the vacuum-packaged prefabricated dishes, a plurality of functional assemblies such as food conveying, meal making and meal delivering are integrated, all the assemblies are matched with one another, automation of the whole process from storage, conveying, making to meal delivery of the prefabricated dishes is achieved, manual intervention is greatly reduced, and the manual maintenance frequency and cost are reduced.

This invention provides a lifting structure for a grinding machine, including a frame and a head. The lower end of the frame is connected to the head via a support arm, and both ends of the support arm are hinged to the frame and the head, respectively. The head can rotate around the support arm. A tilting mechanism is connected between the support arm and the upper end of the frame. The frame, support arm, and tilting mechanism are connected in a triangle. The tilting mechanism drives the support arm to rotate around the frame. This invention is used for grinding machines and can stably lift and tilt the head, making it suitable for vibrating working environments. This invention forms a stable triangular connection structure between the frame, support arm, and tilting mechanism, providing excellent rigidity and stability for the lifting mechanism. The tilting mechanism drives the head to tilt, lifting it off the ground, facilitating the movement of the grinding machine. After the head is tilted, the grinding discs are exposed, making it easy for operators to replace or maintain them, thus improving the convenience of grinding machine maintenance.

The invention discloses a water ring vacuum pump cleaning device, and relates to the technical field of pump machine maintenance, the water ring vacuum pump cleaning device is characterized in that a positioning seat is rotatably connected with a rotating disc, the rotating disc and an impeller of a water ring vacuum pump are coaxially arranged, and the positioning seat is provided with a resistance pressing plate elastically abutted against and matched with the impeller; the cleaning assembly is arranged on the rotary disc through a support and comprises a guide rod, a screw, a threaded sleeve, a spraying module and a servo motor, the guide rod is slidably arranged on the support in the axial direction of the impeller, the spraying module is arranged at one end of the guide rod, the screw is parallel to and fixedly connected with the guide rod, the threaded sleeve is rotationally connected to the support and is in threaded connection with the screw, and the servo motor drives the threaded sleeve to rotate. The screw rod, the guide rod and the spray-washing module move in the axial direction of the impeller, and the spray-washing module enters an interval space between two adjacent blades of the impeller and sprays cleaning liquid to the surfaces of the blades and the inner wall of a shell of the water ring vacuum pump; and the stepping motor drives the turntable to intermittently rotate on the positioning seat, so that the spray-washing module sequentially enters each interval space of the impeller for cleaning operation.

The application discloses a kind of simulation machine maintenance quality evaluation method, system, electronic equipment and storage medium. Including establishing the standardized task library configured with evaluation definition parameter and calibration parameter;According to evaluation configuration and historical operation quality file extraction evaluation task set, generate evaluation task sequence;Collect evaluation process key data and generate evidence chain bag, carry out edit distance comparison to operation sequence and standard operation sequence, obtain behavior trajectory consistency score;Calculate task weight based on calibration parameter, combine scoring factor and abnormal behavior correction factor to calculate each evaluation task score and total score;According to task score and total score, generate multidimensional operation quality portrait vector, and fuse and update with historical operation quality file, output maintenance quality evaluation report and maintenance operation correction instruction or maintenance strategy adjustment parameter.The application can improve the standardization degree of simulation machine maintenance quality evaluation, improve maintenance quality and efficiency.

1. Name of the product in this design: Graphical User Interface for Maintenance and Control System of Cutting Machine for Electronic Equipment. 2. Purpose of this design: For use in the control system of a cutting machine. 3. The key design features of this product are its graphical user interface content. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Other views are omitted as they are standard design. 6. Design 1 is designated as the basic design. 7. Use of graphical user interface: for cutting machine control systems. 8. Human-computer interaction methods of the graphical user interface: Clicking the "Machine Maintenance" button in the main view of Design 1 will enter the Design 1 interface change state diagram 1; clicking the "OK" button in the Design 1 interface change state diagram 1 will enter the Design 1 interface change state diagram 2; clicking the "Rotate and Align" button in the Design 1 interface change state diagram 2 will enter the Design 1 interface change state diagram 3; clicking the "Skip Cut" button in the Design 1 interface change state diagram 3 will enter the Design 1 interface change state diagram 4; clicking the "Help" button in the Design 1 interface change state diagram 4 will enter the Design 1 interface change state diagram 5; clicking the "Machine Maintenance" button in the main view of Design 2 will enter the Design 2 interface change state. Figure 1; Click the "OK" button in Design 2 interface change state figure 1 to enter Design 2 interface change state figure 2; Click the "Pixel Size Adjustment" button in Design 2 interface change state figure 2 to enter Design 2 interface change state figure 3; Click the "Machine Maintenance" button in the main view of Design 3 to enter Design 3 interface change state figure 1; Click the "OK" button in Design 3 interface change state figure 1 to enter Design 3 interface change state figure 2; Click the "Focus Maintenance" button in Design 3 interface change state figure 2 to enter Design 3 interface change state figure 3; Click the "D / T Focus Calibration" button in Design 3 interface change state figure 3 to enter Design 3 interface change state figure 4.

The utility model relates to the technical field of maintenance boxes, and discloses a maintenance box of a steam turbine, which comprises a box body and universal wheels fixedly mounted at four corners of the lower end of the box body, handrails are fixedly mounted on two sides of the side wall of the box body, a movable cover is rotatably mounted at the upper end of the box body, and the movable cover is fixedly mounted on the box body. When tools in the maintenance box need to be used, the movable cover is opened firstly, the upper storage bin can be pulled out along the sliding groove through the pull ring, at the moment, the upper storage bin slides away from the upper end of the lower storage bin along the sliding groove, the upper storage bin can be pulled out along the sliding groove, and the lower storage bin can be pulled out through the pull ring. The lower storage bin is automatically pushed out upwards under the action of a plurality of first springs, the first springs can push the lower storage bin upwards along the inner wall of the box body till the upper end of the lower storage bin is flush with the upper storage bin, at the moment, the two storage bins for containing tools are unfolded at the same time, and after the upper storage bin is pulled open, the lower storage bin can automatically slide outwards to be flush with the upper storage bin. And the materials and tools in the two storage bins can be conveniently found.

The present application relates to a kind of three-phase alternating current switch machine action lever conversion force detection method, it is characterized in that: including three-phase alternating current asynchronous motor (1), deceleration and motion conversion component (2), switch machine action lever (3), rotational speed or angle detector device (4), sensor (5), processing unit (6) and mode selection hardware (7), the driving output shaft of three-phase alternating current asynchronous motor (1) is connected with deceleration and motion conversion component (2) axle;Three-phase alternating current asynchronous motor (1) drives deceleration and motion conversion component (2) by.Three-phase alternating current switch machine action lever conversion force detection method, so as to measure and calculate the conversion force on switch machine action lever in the process of switch machine conversion continuously real-time, guide turnout, switch machine maintenance, adjustment, repair, so that turnout conversion jam does not occur, reduce the influence to train operation order.

The utility model discloses a phosphorus pentachloride horizontal crusher, which belongs to the technical field of chemical machinery, and comprises an operation table, a horizontal linkage crushing component for carrying out horizontal double-roller crushing treatment on phosphorus pentachloride raw material solids, and an air suction sealing component for absorbing toxic gas generated by the raw materials and enhancing the sealing property, the air suction sealing assembly comprises a feeding air suction assembly and a sealing inflation assembly. The horizontal linkage smashing assembly is installed at the upper end of the operation table, the feeding air suction assemblies are installed at the upper end and the lower end of the horizontal linkage smashing assembly, and the two sealed inflation assemblies are installed at the side end of the horizontal linkage smashing assembly and distributed in a bilateral symmetry mode. In this way, the device is simple in structure and easy to implement, the smashing effect is improved, the maintenance rate of daily maintenance machines is reduced through the energy-saving machine, gas absorption and sealing protection are increased, and the quality of finished products is improved.

The utility model discloses a maintenance mechanism for a laser cutting machine, which relates to the technical field of maintenance of laser cutting machines and comprises a handle, a support connected to the bottom of the handle, a supporting roller connected to the inside of the support, cleaning cloth connected to the outer surface of the supporting roller, a pneumatic motor mounted on one side of the support and a first valve mounted on the back of the handle. A first conveying pipe is connected between the first valve and the pneumatic motor; a second valve is mounted on the outer surface of the handle, a second conveying pipe is connected to the bottom of the second valve, and a high-pressure nozzle is connected to the section of the second conveying pipe; the tops of the second valve and the first valve are connected with connecting pipes. Through the arrangement of the handle, the second valve, the second conveying pipe and the high-pressure nozzle, a worker can conveniently stand for operation without bending down, and the second valve can be opened to enable compressed air to penetrate through the second conveying pipe and the high-pressure nozzle to be sprayed into a tooth groove, so that the rack is cleaned; and fatigue caused by long-term bending is avoided.

The utility model provides a partition door lifting air cylinder disassembling and assembling jig, and relates to the technical field of etching machine maintenance. The partition door lifting air cylinder disassembling and assembling jig comprises a supporting part and a fixing part. The supporting part is configured to abut against the wall, provided with the first opening, of the main body. The fixing part is fixedly connected with the supporting part, and the fixing part is configured to be fixed with the partition door; when the partition door is fixed to the fixing part in a suspended mode, at least part of the supporting part exceeds the first opening. By means of the operation space above the machine table, two persons can disassemble and assemble the partition door telescopic air cylinder above and below the machine table, lifting of the partition door telescopic air cylinder is facilitated, and connecting bolts between the partition door telescopic air cylinder and the machine table can be conveniently operated and disassembled. The problems that in the prior art, the space is narrow during disassembly and assembly, the partition door telescopic air cylinder can be disassembled and assembled only by one person, the partition door telescopic air cylinder is prone to falling off, and the damage risk of personnel and an etching machine is increased are solved.

The invention provides an air extractor and semiconductor processing equipment. The air extractor comprises a travel switch, a bypass and a controller. The travel switch is arranged at the position of a cavity cover of the process cavity and used for obtaining a first signal indicating opening of the cavity cover when the cavity cover is opened. One end of the bypass is connected between the process chamber and a hot trap, and the other end of the bypass is connected between the hot trap and a sucking pump. A first valve used for opening or closing the bypass is arranged in the bypass. And the controller is configured to open the first valve in response to the received first signal, so that tail gas generated in the process chamber and the hot trap is pumped out by the sucking pump through the bypass. The device can be used for weakening upward return of gas carried by rising of hot airflow in a front-end pipeline and a hot trap in the open cavity maintenance stage, so that the influence of odor diffusion on the environment is prevented, and the health hazard risk brought to machine maintenance personnel under specific conditions is reduced.

The utility model discloses a modularized refractory material structure of a sintering machine air bellow, which belongs to the technical field of refractory material structures of sintering machine air bellow and is characterized in that a plurality of spliced refractory material modules are covered on the inner wall of the sintering machine air bellow; the refractory material module comprises a bottom plate, side plates are welded to the edges of the bottom plate, steel bars are welded in the bottom plate, a steel wire mesh is welded to the steel bars, and a space formed by the bottom plate and the side plates is filled with refractory materials. Modularized refractory material modules are spliced and covered on the inner wall of the air bellow of the sintering machine, and each refractory material module is independently processed and manufactured, so that a large amount of rebound materials generated by integral spraying construction are avoided, the consumption of refractory materials is reduced, the material cost is reduced, the refractory materials can be manufactured in advance, complete maintenance and curing of the refractory materials are ensured, and the wear-resistant and high-temperature-resistant strength is improved; installation is conducted through a sintering machine overhaul machine, the construction period is greatly shortened, the working efficiency of the sintering machine is improved, installation is convenient, and maintenance in the later production process is facilitated. The overall structure is simple, implementation is easy, and practicability is good.

The invention discloses an chemi-mechanical pulp transfer screw press suitable for double bleaching towers, and relates to the technical field of chemi-mechanical pulp treatment equipment, a rotating shaft is arranged in the transfer screw press, the diameter of the rotating shaft is obliquely arranged from small to large from left to right, and a spiral stirring blade is fixed on the rotating shaft; the feeding mechanism is arranged on the upper left portion of the two transfer screw press bodies. The dehydration mechanism is connected with the two transfer screw press bodies; the pushing mechanism is connected with the squeezing pipe; the first mounting frame is arranged between the pushing mechanism and the squeezing pipe; the rapid switching of the feeding pipelines is realized, and the continuous dehydration operation of the chemi-mechanical pulp in the double-bleaching-tower system is ensured; online cleaning during blockage is facilitated, and the downtime is shortened; accumulated slurry is thoroughly removed, and residues are prevented from affecting the subsequent process; the two sets of independent transfer screw press bodies are arranged, flexible switching is achieved through the material distribution mechanism, it is ensured that the system can still operate continuously when a single machine is maintained or cleaned, and the overall operation continuity is improved.