2694results about How to "Prevent slipping" patented technology

The invention relates to the technical field of laser cutting, in particular to a laser cutting carrying table and laser cutting equipment. The device comprises a machine body, racks are arranged on the two sides of the bottom of a movable base plate, a vibration assembly is arranged below the racks, and when the movable base plate moves, the racks drive the vibration assembly to knock the surface of a workbench. When the eccentric rod rotates, a hitting ball is driven to hit the surface of the workbench, slag particles left in a supporting plate on the surface of the workbench are loosened, the slag particles adhered and clamped in the supporting plate are blown away in cooperation with an air blowing pipe, and it is avoided that slag splashes into a laser light path, and the cutting precision and quality are seriously affected; the surface of the supporting plate is always kept in a clean state, and the service life of the laser cutting device is prolonged.

The invention relates to the technical field of composite fiber non-woven fabric manufacturing, in particular to a composite fiber non-woven fabric tensile property testing device which comprises a base, and an n-shaped support and a limiting sliding way located under the horizontal section of the n-shaped support are fixedly installed on the upper end face of the base. And a stretching mechanism for stretching the composite fiber non-woven fabric front and back is arranged on the limiting slide way. The tensile property test of the composite fiber non-woven fabric is completed by adopting an integrated operation model of stretching, twisting and extruding, the test reliability is improved by adopting a fixing mode of combining clamping of upper and lower cambered surfaces with matching of a rubber plate, a convex block and a groove, and meanwhile, the tensile property of the composite fiber non-woven fabric is improved through plane stretching, twisting and plane stretching tests after twisting as well as downward extruding and stretching of a middle section. The composite fiber non-woven fabric tensile property testing device can simulate complex stress conditions possibly faced by the composite fiber non-woven fabric in practical application, so that the tensile property of the composite fiber non-woven fabric in multiple stress states is comprehensively evaluated, multiple testing modes are realized on a single device, and the overall testing efficiency is improved.

The invention belongs to the technical field of rock-soil side slope protection, and particularly relates to an expansive soil side slope flexible ecological comprehensive supporting system which comprises an intercepting ditch, a vegetation protection layer, a composite waterproof layer, flexible anchor rods, water seepage and drainage pipes, cultivation and planting soil, a drainage ditch, a backfill soil layer, a step-shaped slope surface, a slope surface and slope protection vegetation. The slope surface is excavated into a step-shaped slope surface, a composite waterproof layer, expansive soil backfill soil, a vegetation protection layer and cultivation and planting soil are sequentially arranged on the step-shaped slope surface from bottom to top, and slope protection vegetation is planted and formed on the cultivation and planting soil; the composite waterproof layer is fixed to the step-shaped slope face through the flexible anchor rods. The vegetation protection layer and the slope protection vegetation together reinforce the shallow soil body, and the composite waterproof layer and the flexible anchor rod play a role in absorbing and relieving the received expansive force. The method has an ecological greening effect, has the functions of common supporting of the shallow surface layer and the deep layer of the expansive soil slope, flexible reinforcement and expansion reduction and allowable generation of a small amount of deformation, is simple in construction and high in efficiency, and can realize long-term stability of the shallow surface layer and the deep layer of the expansive soil slope.

The invention discloses a robot control method, device and equipment and a storage medium, and relates to the field of robots. If the robot is in the slipping state at present, a task execution device of the robot is lifted to a target height position from a current height position; and after the task execution device ascends to the target height position, the robot continues to be controlled to move. By starting slip detection, when it is detected that the robot slips, the position of the cutter head is adjusted to avoid subsequent continuous slip of the robot, and the use experience of a user is improved.

The invention discloses a method for preventing a high-carbon tool steel hot rolled steel coil from being flattened, which comprises the following steps of: providing a continuous casting slab which comprises the following components in percentage by mass: 0.65 to 1.35 weight percent of C, 0 to 1.6 weight percent of Si, 0 to 1.2 weight percent of Mn, 0 to 1.2 weight percent of Cr, less than or equal to 0.030 weight percent of P, less than or equal to 0.030 weight percent of S and the balance of iron and inevitable impurities; the charging temperature of the continuous casting sheet billet is larger than or equal to 300 DEG C, the continuous casting sheet billet is fed into a heating furnace to be heated, the discharging temperature of the continuous casting sheet billet is 1150-1250 DEG C, and a first sheet billet is obtained; the first plate blank is subjected to rough rolling, the rough rolling and finish rolling temperature ranges from 1050 DEG C to 1150 DEG C, and an intermediate blank is obtained; the intermediate billet is subjected to finish rolling, the finish rolling temperature of finish rolling is 800-950 DEG C, and finish rolled steel is obtained; laminar cooling is conducted on the finish-rolled steel in a front-section centralized cooling mode, final fine adjustment water and front and rear side spraying of laminar cooling are closed, the temperature of the finish-rolled steel is reduced to the first target temperature to the phase transformation point, and cooled steel is obtained; and the cooled steel is coiled at the temperature of 590-690 DEG C, the coiling tension is increased by 10%-20% in the coiling process, and a hot rolled steel coil of the high-carbon tool steel is obtained.

The invention belongs to the technical field of metal stamping dies, and particularly relates to a metal stamping die demolding structure which comprises a stamping base, a stamping frame fixed to the surface of the stamping base and a stamping hydraulic cylinder fixed to the surface of the stamping frame. A stamping base is arranged over the stamping die, a lubricating top die assembly is arranged above the stamping base, the lubricating top die assembly is arranged, lubricating oil can be smeared and sprayed to the surface of the stamping base and the interior of the stamping die, and therefore the friction force between the surface of the stamping base and the interior of the stamping die in the subsequent stamping process is reduced; the phenomenon that metal raw materials are damaged due to friction caused by forced stamping without lubrication is avoided, demolding after the metal raw materials are stamped is also facilitated through the lubrication effect, a metal blank formed through stamping can be pushed to be loosened, the rapid demolding effect is achieved, manual demolding is not needed, the labor intensity of manual demolding is reduced, and the demolding efficiency is improved.

The invention provides a mechanical in-situ test experimental device with a multi-working-condition simulation coupling effect, and belongs to the field of mechanical testing. The problems that an existing mechanical property testing device can only simulate single environment characteristics and cannot test various mechanical properties are solved. Wherein the linear sliding table is connected with the mobile platform through the mounting bracket, the upper end of the connecting rod is fixedly connected to the mobile platform, and the lower end is positioned in the box body; any one of one of the stretching and fatigue experiment clamp, the bearing platform and the bending pressing table can be mounted on a bottom plate of the box body, and any one of the other stretching and fatigue experiment clamp, the compression pressing head, the hardness measuring head, the bending pressing head and the impact testing head assembly can be mounted at the lower end of the connecting rod; the environment simulation assembly can simulate the temperature, humidity and salt mist environment of actual working conditions in the box body; the in-situ monitoring assembly can be used for monitoring the to-be-tested sample in the box body in real time. The device can simultaneously simulate a plurality of actual working conditions and coupling working conditions of actual loads, and can complete a plurality of mechanical property tests.

The invention relates to the technical field of cable deicing, in particular to a rotary cutting deicing robot suitable for a power transmission cable and a control method thereof.The rotary cutting deicing robot comprises a walking mechanism, an auxiliary walking assembly, an unmanned aerial vehicle hanging assembly, a clamping and aligning assembly, a rotary cutting assembly and a first camera. The operation mode is more flexible, the auxiliary walking assembly applies bending force to ice on the initial position of the cable to enable the ice to fall off, the deicing effect of the initial position of the cable is achieved, the cable is guided and clamped through the clamping and aligning assembly, the center of the cable coincides with the motion center of the rotary cutting assembly, and then the rotary cutting precision is improved; the rotary cutting assembly is used for rotationally cutting the ice layer, it is guaranteed that the icing is completely removed, the icing removing effect is improved, the icing thickness is recognized in real time through the first camera, then dynamic speed regulation is conducted according to the icing thickness, and the intelligent degree is improved.

The invention discloses equipment for direct hot-press molding of a paper pulp roll, and relates to the field of paper manufacturing. According to the scheme, a cutting area is reserved on a surface layer, the surface layer covers a cutting surface through a vibration base of a mold core assembly, and the problems of fiber burr exposure, loose structure and damp pollution caused by exposure of the cutting surface are solved; the folded and covered surface layer provides lateral limiting force in the hot pressing process, the compactness of the edge is enhanced, the middle cutting face is prevented from loosening, meanwhile, through axial friction force generated by reciprocating motion of the vibration base, it is further ensured that the surface layer and the cutting face are stably attached, material rebound and covering loosening are prevented, and the interlayer slippage condition is prevented; instantaneous impact force is generated through sliding impact of the vibration seat on the buffer cushion, so that the pressing effect of the surface layer in the hot pressing process is enhanced, the cutting surface is tighter and smoother, fiber looseness and tiny gaps are reduced, the edge sealing quality is improved, the protection effect of the cutting surface is improved, and the bonding strength of the surface layer and paper pulp is improved.

The invention provides an intake valve late closing device, an intake valve assembly and an engine, and belongs to the technical field of engines, and the intake valve late closing device comprises a cam shaft, a rocker arm shaft, an intake rocker arm, a main roller, a control unit, a movable unit, a contact part and a return spring. The device has the beneficial effects that an air inlet valve late-closing rocker arm in the prior art is omitted, the movable unit is movably connected with the air inlet rocker arm, when the electromagnetic valve is closed, the air inlet cam makes contact with the main roller, and the air inlet valve late-closing roller makes contact with the air inlet late-closing cam but only compresses the return spring; when the electromagnetic valve is opened, engine oil pressure pushes the movable block to move to the position away from the air inlet rocker arm, the air inlet late-closing cam and the air inlet valve late-closing roller are still in contact but do not compress the return spring any more, the air inlet cam and the main roller are separated, a pause gap is formed, and therefore the air inlet late-closing cam does not work any more.

The invention provides grinding equipment for a tong head. The grinding equipment comprises a supporting assembly, a grinding assembly and a bearing assembly. The grinding assembly is connected with the supporting assembly and arranged on the upper portion of the bearing assembly. The grinding assembly is provided with a driving mechanism and a grinding wheel, the driving mechanism is configured to drive the grinding wheel to move and rotate, the driving mechanism is provided with a second through hole, the grinding wheel is provided with a grinding disc and a cavity, the second through hole communicates with the cavity, and the cavity is configured to contain a lubricant; the bearing assembly is provided with a plurality of fixing grooves, the fixing grooves are connected with the fixing bases correspondingly, the fixing bases are configured to be used for installing to-be-polished tong heads, and the bearing assembly bears the fixing bases to rotate. The supporting assembly is designed to have enough strength and stability, enough supporting force is provided for the grinding assembly, and therefore the grinding precision and efficiency are guaranteed. A driving mechanism of the polishing assembly is designed to be capable of adjusting the position and the rotating speed of a polishing wheel so as to meet the polishing requirements of tong heads of different materials and shapes.

The utility model discloses a ton barrel transfer device with good protection performance, and relates to the technical field of ton barrel transfer devices, the ton barrel transfer device comprises a forklift structure, two protection structures are arranged on the forklift structure, the two protection structures are symmetrically arranged, each protection structure comprises a lifting part, a protection part is arranged on each lifting part, and each protection part comprises a clamping assembly. The forklift structure comprises a mounting plate, two first metal strips are arranged on one side of the mounting plate, a pallet fork is arranged on the mounting plate, the lifting component comprises two fixing plates fixedly connected with the pallet fork, and a threaded rod is rotationally connected between the two fixing plates. According to the utility model, the ton barrel can be clamped and limited, so that the ton barrel is protected, the stability is improved, the danger during use is reduced, and meanwhile, the position of the protection part can be adjusted according to the height of the ton barrel, so that the protection part is positioned in the middle of the ton barrel, and the protection effect is improved.

The invention discloses an intestinal anastomotic stoma protection device and a use method thereof, belongs to the technical field of medical instruments, and solves the problems that in the prior art, an air bag can slide out of a supporting tube in the use process, and the supporting tube cannot be synchronously disintegrated. The device comprises a support tube fixed in an intestinal tract at the front end of an anastomotic stoma, a blocking mechanism arranged in the support tube and used for blocking the circulation of intestinal content and preventing the intestinal content from flowing through the inner wall of the support tube, and a limiting mechanism arranged on the inner wall of the support tube and used for preventing the blocking mechanism from sliding, the disintegration mechanisms are respectively arranged at two ends of the supporting pipe and are used for synchronously disintegrating the supporting pipe and the limiting mechanism. The limiting mechanism is arranged on the inner wall of the supporting tube, the limiting mechanism abuts against one end of the blocking mechanism, the blocking mechanism is prevented from slipping off in the using process, and the situation that contents are left in the intestinal tract through the anastomotic stoma and the supporting tube to be disintegrated automatically is avoided, the disintegration mechanism is arranged on the supporting tube, and the disintegration mechanism can facilitate synchronous disintegration of other parts of the protection device.

The invention relates to the technical field of rock core sampling equipment, and particularly discloses a coring cylinder for rock core sampling and a use method. The coring cylinder comprises a body provided with a drill tail end and a connecting end; the body is provided with a containing cavity. The body comprises an outer shell, an inner shell forming a first channel with the outer shell, a cutting assembly, a transmission mechanism used for controlling the cutting assembly to slide along the first channel, a locking mechanism installed on the inner shell and a trigger column with one end extending into the containing cavity. The locking mechanism is located between the transmission mechanism and the trigger column. The first channel comprises a vertical section and a radial section. The invention also discloses a use method thereof. The cutting assembly can move in the first channel, the length of the cutting assembly is not affected by the wall thickness of the annular drill bit, the cutting assembly can be arranged to be longer so as to increase the radial depth of rock core cutting and reduce the force application strength of a mother rock to a rock core when the annular drill bit is lifted upwards, and even the cutting assembly can be arranged to be long enough according to needs so that the cutting assembly can completely cut off the whole rock core; and the coring yield can be increased.

The degradable breast prosthesis shaping net bag with the heterogeneous hierarchical porous structure is composed of the large-aperture structure layer and the micro-aperture structure layer, the large-aperture structure layer and the micro-aperture structure layer are formed by combining degradable fibers in a staggered mode, the degradable breast prosthesis shaping net bag and the breast prosthesis are perfectly conformal, and the mechanical property and the tissue adhesion property needed by the net bag are provided; the two cooperate to realize the integration function of the prosthesis and the tissue, and an additional suture fixing device is not needed; the overall shape of the net bag is designed to be the hemispherical upper cover and the lower end cover edge, the process of adding the net bag and a prosthesis is simplified, the operation efficiency is improved, the net bag has excellent mechanical performance and shaping capacity, the micropore structure is beneficial to adhesion and immigration of cells, rejection reaction of a body is reduced, the incidence rate of capsular contracture is remarkably reduced, and the net bag is suitable for popularization and application. The invention has the characteristics of hierarchical porous structure design, mechanical shaping capability customization and capsule contracture prevention, and provides an innovative breast prosthesis shaping and biological performance improvement scheme for breast cancer patients.

The invention relates to the technical field of fasteners, in particular to a hardware connecting fastener with a buffer structure, which comprises a bolt cap and a screw, the bottom of the bolt cap is fixedly connected with the screw, the bottom end of the bolt cap is fixedly connected with a gasket, and the bottom of the screw is fixedly connected with a rotating plate. The bottom of the rotating plate is fixedly connected with a shape memory alloy, the bottom of the shape memory alloy is fixedly connected with a bottom plate, an anti-loosening mechanism is arranged in the screw rod, and a buffering mechanism is arranged in the screw rod. The anti-skid wire ensures stable connection, through buffering impact resistance, when the electronic product is vibrated, the buffer plate drives related parts, impact force is counteracted through the buffer spring, the impact resistance is improved, in addition, the buffer plate moves to drive the ejector rod to press the pressing rod, lubricating oil is extruded out to lubricate the screw rod, abrasion is reduced, and disassembly is convenient.

The utility model relates to an eye hot compress treatment device which comprises a supporting frame, and the supporting frame is provided with an arc-shaped part matched with the outline of the head and ear hanging parts used for being hung on ears. The two eye hot compress pieces are arranged at the left end and the right end of the front side of the supporting frame respectively, and each eye hot compress piece comprises a heating film; the device further comprises a control host, and the heating film is electrically connected with the control host. The portable earphone is simple in overall structure, small and exquisite in size, light in weight, convenient to wear and high in adaptability, and compared with a traditional structure, the portable earphone greatly improves portability and experience of a user.

The utility model provides track inspection equipment. The track inspection equipment comprises a vehicle body, and a steel rail detection device, a fastener detection device, an evacuation platform detection device, a ballast bed detection device, a drainage ditch detection device, a synchronous positioning system and a main control unit which are arranged on the vehicle body, wherein the steel rail detection device, the fastener detection device, the evacuation platform detection device, the ballast bed detection device and the drainage ditch detection device are all in communication connection with the main control unit, and the main control unit is in communication connection with the synchronous positioning system. According to the utility model, steel rails, fasteners, evacuation platforms, ballast beds and drainage ditches around the vehicle body are detected according to image information, the detection content is more, the accuracy is high, the daily public work detection content of urban rail transit is basically covered, the labor intensity is effectively reduced, and the detection efficiency is high.

The invention provides stamping equipment for automobile engine oil pan production, and belongs to the technical field of oil pan stamping equipment. Which comprises a stamping equipment body and is characterized in that a lower die and an upper die are installed on the stamping equipment body, a first supporting frame is installed on one side of the stamping equipment body, and a second supporting frame is installed on the other side of the stamping equipment body; an automobile oil pan material plate is placed on the top of the first supporting frame. By arranging the auxiliary feeding mechanism and the auxiliary discharging mechanism, the auxiliary feeding mechanism can be utilized, workers do not need to make direct contact with an automobile oil pan material plate, the automobile oil pan material plate can be rapidly and stably transferred to the position between the lower die and the upper die, and accurate alignment can be achieved after transferring, and the automobile oil pan material plate can be reliably placed on the top of the lower die; and compared with a traditional manual handheld plate feeding mode, the feeding device is safer and more reliable.

The invention provides an automatic braid labeling machine which comprises a base, the upper surface of the base is fixedly connected with a limiting plate, the upper surface of the limiting plate is fixedly connected with a workbench, the surface of the workbench is fixedly connected with a first supporting rod, and the first supporting rod is fixedly connected to the upper surface of the base; a labeling assembly is arranged on the surface of the workbench and comprises a labeling cylinder arranged above the workbench. A first motor drives a winding wheel to rotate to achieve braid winding, the braid is prevented from slipping by means of anti-slip teeth of a friction chuck, stable and accurate conveying is guaranteed, a linkage transverse rod is driven by related parts to accurately move and rotate, and when the linkage transverse rod is horizontal, a circular ring and the braid are matched to enable a dispensing conical cylinder to output glue in a proper amount, and the range is limited. And the identification sticker accurately falls on the glue dripping position and is pressed by the labeling cylinder and the glue dispensing conical cylinder, so that the labeling quality is improved, the falling of the identification sticker is reduced, the automatic labeling effect is improved, and the braid labeling efficiency is improved.

The utility model relates to the technical field of automobile anti-collision beam bearing production, and discloses an automobile anti-collision beam bearing performance detection device, which comprises a base, a bidirectional motor is fixedly connected in the base, the output end of the bidirectional motor is fixedly connected with a first threaded rod, and the output end of the first threaded rod is fixedly connected with a second threaded rod. The outer sides of the two first threaded rods are rotationally connected with the interior of the base, the outer sides of the two first threaded rods are in transmission connection with moving seats through threads, the outer sides of the two moving seats are in sliding connection with the interior of the base, and the tops of the two moving seats are fixedly connected with fixed seats. The tops of the two fixing bases are movably connected with the same anti-collision beam body, and the bottom of the anti-collision beam body is in threaded connection with four screw rods which are symmetrically distributed left and right. The automobile anti-collision beam bearing performance detection equipment has the advantages of being convenient to adjust and the like, and the problem that when anti-collision beams of different lengths are tested, the applicability is general due to the fact that the equipment does not have the adjusting function is solved.

The invention provides an on-line detection device for a welding workpiece, and the device comprises a detection rack which is used for placing a to-be-detected workpiece; the mechanical arm is arranged on one side of the detection rack, an adsorption device is arranged at the movable end of the mechanical arm, and the adsorption device comprises at least two movable adsorption assemblies capable of moving in the length direction of the adsorption device; and the visual detection device is arranged on the adsorption device, the visual detection device comprises a camera, and the camera can rotate around the length direction of the adsorption device. According to the invention, automatic, unmanned, accurate and reliable detection of a welding workpiece can be realized, and the device can be widely compatible with various production lines; the visual recognition technology is adopted to automatically recognize whether the size, the welding seam and the like of the workpiece are qualified or not, the detection convenience and accuracy are improved, the detection efficiency is greatly improved, meanwhile, quality control becomes reliable, and large-scale batch production can be achieved easily.

The invention relates to a slope landscape covering soil sliding prevention protection structure and a construction method thereof.The protection structure comprises a drainage layer arranged at the bottom of a covering soil layer, the drainage layer is provided with staggered water collecting grooves, and the water collecting grooves are collected into a vertical shaft; the vertical shaft is filled with permeable materials which are arranged in a layered manner and have different particle sizes and is connected to the drainage pipe through a waterproof joint. A reinforcing layer composed of reinforced concrete is laid on the surface of the slope, and through holes are formed in reinforcing units, so that water permeation and plant root growth are facilitated. The anchor rods penetrate into the overburden layer and are firmly combined with the reinforcing layer. An anchoring retaining wall is arranged on the side face of the slope, and drainage holes are formed in the wall face to reduce lateral pressure. A deformation sensor and a humidity sensor are installed in the overburden layer to monitor the slope state in real time. The construction method covers the whole process from preliminary slope leveling treatment to vegetation planting, the stability and safety of the slope are improved, restoration and beautification of the ecological environment are promoted, and the method is suitable for various types of slope projects.

The invention discloses a conveying device for a hollow glass production line, and relates to the technical field of hollow glass production line conveying, the conveying device comprises a fixing plate, the top of the fixing plate is rotatably connected with a connecting rod, one end, away from the fixing plate, of the connecting rod is rotatably connected with a plurality of square plates, and the plurality of square plates are uniformly arranged on the outer side of a frame body; the two ends of the connecting rod are rotationally connected with the staggered fixing plate and the square plate, the top of the connecting rod is rotationally connected with a middle rod, the middle of the connecting rod is rotationally connected with a rotating rod, the side, close to the rotating rod, of the fixing plate is fixedly connected with a middle plate, and the inside of the outer side of the fixing plate is rotationally connected with a guide roller. According to the conveying device for the hollow glass production line, the distance between the guide rollers can be adjusted according to the size of fixed glass, glass supporting and positioning of equipment in the conveying process are improved, the conveying efficiency of the glass can be improved, shaking and deviation of the glass in the conveying process can be reduced, and therefore the production quality is improved.

The utility model relates to the technical field of engineering construction, in particular to a clamping device for lap welding of reinforcing steel bars, which comprises supporting structures independently arranged on main body sections of two reinforcing steel bars to be welded and clamping structures arranged on bent sections of the two reinforcing steel bars to be welded. The sliding block is installed on the guide rail, a base plate is installed on the sliding block, an installation shaft with the axis perpendicular to the plate face direction of the base plate is fixed to the middle of the base plate, a clamp used for installing and clamping two to-be-welded steel bar bent sections is rotatably installed on the installation shaft, and the supporting structure is used for supporting the main body sections of the to-be-welded steel bars. The bent sections of the ends of the reinforcing steel bars to be welded are clamped and fixed through the clamps on the clamping structures to be welded, the clamps are rotationally installed on the base plate, the base plate can slide along the guide rails through the sliding blocks, the positions and the directions of the clamps can be adjusted at the same time, and the lap joint portions of the bent sections of the two reinforcing steel bars to be welded fall on the positions of the clamps to be clamped, fixed and welded.

The utility model provides a cement prefabricated part mold vibrating device, which relates to the technical field of cement processing, and comprises a vibrating mechanism, an auxiliary assembly is arranged at the top end of the vibrating mechanism, the vibrating mechanism comprises a base, a circular groove is formed in the top end of the base close to the center, a vibrating motor is arranged in the circular groove, and the vibrating motor is connected with the auxiliary assembly. Grooves are formed in the positions, close to the four corners, of the top end of the base, sliding rods are arranged in the grooves and extend out of the top end of the base, springs are arranged on the peripheries of the sliding rods and located at the top end of the base, the auxiliary assembly comprises a table top, and fixing bases are arranged on the positions, close to the periphery, of the top end of the table top. According to the cement prefabricated part mold vibration device, through the use of the fixing base, the threaded rod, the contact plate and the limiting rod, a cement prefabricated part mold can be limited in the vibration process, the practicability is greatly improved, meanwhile, auxiliary vibration can be conducted on the side face of the cement prefabricated part mold, the vibration time is effectively shortened, and the production efficiency is improved.

The invention relates to a special tool for replacing a current transformer of a switch cabinet. The special tool comprises a transfer trolley, a bearing table is arranged above the transfer trolley, a lifting frame is arranged between the bearing table and the transfer trolley, cross rods are arranged in the lifting frame, the ends of the cross rods are connected with connecting rods, a lifting hydraulic cylinder is arranged between the connecting rods, and the lifting hydraulic cylinder is connected with the bearing table. Rod frames are arranged on the front side and the rear side of the bearing table, a moving plate is arranged between the rod frames, and a clamping mechanism is arranged on the outer side of the moving plate; through the integrated arrangement of the transfer trolley, the lifting frame, the bearing table and other structures, the current transformer can be easily placed in the switch cabinet, the installation and replacement time is remarkably shortened, and the device can be widely applied to different types of switch cabinets and current transformer replacement scenes.

The invention provides a locomotive battery replacement protection system and a battery replacement method. The protection system comprises a battery replacement control switch, a battery locking mechanism and a locomotive parking brake mechanism. The battery replacement control switch controls the on and off of the replacement operation of the battery, and the battery replacement control switch is mechanically interlocked with a power system switch of the locomotive. And the battery locking mechanism can be switched between a locking position and an unlocking position, and the battery changing control switch controls switching of the battery locking mechanism. The locomotive parking brake mechanism is connected with the battery locking mechanism and can be switched between a parking brake releasing position and a parking brake implementing position, and when the battery locking mechanism is located at the locking position, the locomotive parking brake mechanism is located at the parking brake releasing position; and when the battery locking mechanism is in the unlocking position, the locomotive parking brake mechanism is in the parking brake implementation position.

The utility model provides an anti-slip diamond brazing bead string and a wire saw, which comprise a bead string base body and an abrasive particle layer fixed on the outer surface of the bead string base body, and are characterized in that the outer surface of the bead string base body is provided with a spiral groove along the circumferential direction; the abrasive particle layer is arranged in the spiral groove and comprises brazing filler metal and diamond, and the diamond is connected into the spiral groove through the brazing filler metal; by the adoption of the technical scheme, the situation that the brazing material forms a liquid state in the brazing process and then drives the diamonds to slide is prevented, the diamonds are evenly distributed in the spiral groove, the diamond utilization rate in the grinding process is increased, and then the grinding efficiency is improved; and the spiral grooves are beneficial to chip removal during grinding of the diamond brazing bead string, and the situation that cuttings adhere to the surface of the diamond, and the grinding capacity is affected is prevented.