31results about How to "Rotate synchronously" patented technology

The invention relates to the technical field of vibrating screen mesh welding, and discloses a welding device for vibrating screen mesh machining, which comprises a rack, and a circular metal welding disc is arranged on the rack; the vertical rod is fixed on the top surface of the rack; the lifting seat is arranged on the vertical rod in a lifting manner; the mounting seat is fixed at one end, far away from the vertical rod, of the lifting seat; the rolling welding structure is arranged on the mounting seat, and the rolling welding structure comprises a roll welding module; and the flattening structure is arranged on the mounting seat, and the flattening structure is arranged right opposite to the metal welding disc. By pressing the middle of the screen through the flattening plate and comprehensively flattening the outer edge of the screen through the four flattening plates distributed in the circumferential direction in an array mode, the overall flatness of the screen in the welding process is further guaranteed, and reliable quality guarantee is provided for subsequent use of the screen.

The application relates to a label cutting mechanism and relates to the technical field of label cutting, which comprises a workbench, a displacement sensor, a start-stop roller and a cutter are sequentially arranged on the workbench along the moving direction of a profile strip, the displacement sensor is used for detecting the displacement distance of the profile strip, two start-stop rollers are rotationally arranged on the workbench and jointly clamp the profile strip, a driving assembly for driving the start-stop roller to rotate is arranged on the workbench, the displacement sensor is electrically connected with the driving assembly, and the cutter is used for cutting the profile strip. The application has the effects of avoiding cutting deviation caused by continuous movement of the profile strip as much as possible and improving cutting precision.

The present invention discloses a bonding device and bonding method, including a frame and a tape conveying assembly arranged thereon and arranged in an upper and lower part for conveying a tape and a metal tape conveying assembly for conveying a metal tape, respectively. Along the movement direction of the metal tape and the tape after bonding, the frame is also provided with a pre-bonding assembly for accurately aligning and pre-bonding the metal tape and the tape, a pressing assembly for pressing the metal tape and the tape, and a receiving assembly for collecting the pressed metal tape and the tape. The beneficial effects of the present invention are mainly reflected in: compared with the prior art, the device has a high degree of automation, no manual operation is required throughout the process, the work intensity is greatly reduced, and the work efficiency is improved; at the same time, the metal belt wheel is wound on the metal belt wheel, and the tape is wound on the tape wheel. The limit pin and the positioning pin cooperate to accurately position the metal belt and the tape, avoid misalignment or displacement, and ensure the qualified rate to the greatest extent.

This invention relates to the field of stress monitoring device technology and discloses a stress monitoring device for coal and rock strata in coal mine mining. The device includes a mounting shell and a monitoring component. The monitoring component is mounted on the mounting shell and includes multiple arc-shaped baffles arranged in a circular array and fixedly connected to the outer surface of the mounting shell. The opposing surfaces of the arc-shaped baffles form concrete-filled spaces, each containing an arc-shaped plate. When a sensor needs to be replaced, the circular sleeve can be rotated via a handle, causing the monitoring device mounting box to rotate within a circular groove via an arc-shaped sliding plate. With the two circular grooves aligned with the two arc-shaped grooves, the four springs reset, pushing the monitoring device mounting box forward. Subsequently, the arc-shaped baffles can be completely extracted from the mounting shell, avoiding disassembly of the entire mounting shell or damage to the concrete-filled structure, significantly reducing maintenance costs and facilitating maintenance.

The invention discloses an automobile seat safety belt emergency locking simulation test device, which relates to the field of automobile safety detection and comprises a support frame, sliding tables are symmetrically and slidably connected to the top of the support frame, retractors are symmetrically arranged in one side of the top of the support frame, and to-be-tested safety belts are symmetrically arranged at the top of the support frame. One end of the to-be-tested safety belt is wound in the corresponding retractor, the other end of the to-be-tested safety belt is connected with the corresponding sliding table, and a guide shaft is rotationally connected to the interior of the other side of the top of the supporting frame. The intermittent lifting mechanism can be automatically and continuously circulated for multiple times in the test process without manual intervention, so that the test reliability is improved, the repeatability and comparability of each test result are ensured, the emergency locking performance of the safety belt can be evaluated more accurately through multiple tests, and the test efficiency is improved. Powerful support is provided for improving the product quality.

The utility model relates to the technical field of biomass energy comprehensive application, and discloses a blade crushing and screening device which comprises a shell, a cutterhead assembly and a conveying assembly. The axis of the shell extends in the first direction, and the cutterhead assembly comprises a cutterhead shaft, an angle adjusting mechanism and blades. The cutterhead shaft is arranged in the shell and is collinear with the axis of the shell, a through hole penetrating in the first direction is formed in the center of the cutterhead shaft, the through hole is used for allowing a driving part driving the cutterhead shaft to rotate around the axis of the cutterhead shaft to penetrate through, and a sealing interlayer is formed between the cutterhead shaft and the driving part; the blade is arranged on the peripheral wall of the cutter head shaft, and the angle adjusting mechanism is arranged in the sealing interlayer and is correspondingly connected with the blade so as to control the blade to rotate around the axis of the blade; the conveying assembly is connected with the angle adjusting mechanism and used for providing driving force for the angle adjusting mechanism. The angles of the blades and the cutting gaps between the adjacent blades can be adjusted in real time through the angle adjusting mechanism, and real-time dynamic control over the ventilation resistance and the material powder fineness in the shell is achieved.

The transmission assembly of the linear lifting device comprises a lead screw, a spline sleeve and a hollow hollow shaft arranged on the outer side of the lead screw in a sleeved mode, the spline sleeve is arranged on the outer side of the lead screw in a sleeved mode and rotates synchronously with the lead screw, the spline sleeve is connected with the inner wall of the hollow hollow shaft in a circumferential relative fixing and axial relative moving mode, and the spline sleeve is composed of two half sleeve bodies. The two half sleeve bodies are folded in the radial direction of the lead screw to form a spline sleeve, one of the inner wall of each half sleeve body and the peripheral side of the lead screw is provided with a positioning protrusion, the other one is provided with a positioning groove, and the positioning protrusions and the positioning grooves are matched in a radial inserting mode so that the half sleeve bodies can be axially fixed relative to the lead screw. The hollow shaft sleeves the spline housing and is used for limiting the positioning protrusions from being separated from the positioning grooves. According to the transmission assembly, the assembly process is simplified, and the integrity and the structural strength of the lead screw are guaranteed; the two half sleeve bodies can be directly folded or separated in the radial direction, and disassembly and assembly are convenient. In addition, the utility model further discloses a linear lifting device provided with the transmission assembly.

The transmission assembly of the linear lifting device comprises a lead screw, a spline housing and a hollow hollow shaft arranged on the outer side of the lead screw in a sleeved mode, the spline housing is fixedly arranged on the outer side of the lead screw in a sleeved mode, and the spline housing is connected with the inner wall of the hollow hollow shaft in a circumferential relative fixing and axial relative moving mode. The spline sleeve comprises two half sleeve bodies and a connecting piece, the two half sleeve bodies are folded in the radial direction of the lead screw and then connected through the connecting piece to be kept in a folded state, one of the inner wall of each half sleeve body and the peripheral side of the lead screw is provided with a positioning protrusion, and the other one of the inner wall of each half sleeve body and the peripheral side of the lead screw is provided with a positioning groove. The positioning protrusions and the positioning grooves are matched in a radial inserting mode so that the half sleeve bodies can be axially fixed relative to the lead screw. In addition, the utility model further discloses a linear lifting device provided with the transmission assembly.

The application belongs to the technical field of coil assembly, and discloses a double-cake coil winding device and a winding method. The device comprises a back plate, a first spool, a second spool, a first winding disc and a second winding disc. A framework is arranged on the back plate, and the outer wall of the framework forms a winding area. An insulating plate separates the winding area into a first winding area and a second winding area, and the insulating plate is provided with a crack. The first spool passes through the back plate and the framework. The second spool is arranged outside the back plate and can rotate. The first winding disc has a first state and a second state. The second winding disc is sleeved on the second spool. When the first winding disc is in the first state, the second winding disc is removed, and the first winding disc is in the second state. The first spool drives the back plate, the framework and the first winding disc to rotate synchronously. Part of the wire is wound on the first winding disc, and the other part is wound on the second winding disc through the crack. Through the application, a single wire can be wound into a double-cake coil, the shape stability of the coil winding is improved, and wire disconnection is avoided.

The utility model relates to the technical field of wet tissue processing, and discloses a wet tissue machine continuous slitting device which comprises a rack, a wet tissue slitting mechanism is arranged on the rack, the wet tissue slitting mechanism comprises an upper cutting roller and a lower cutting roller which are arranged in a relative rotation mode, upper slitting knives are evenly distributed on the upper cutting roller in the circumferential direction, and lower slitting knives are evenly distributed on the lower cutting roller in the circumferential direction. Upper slitting cutters matched with the upper slitting cutters are evenly distributed on the upper cutting roller in the circumferential direction, lower slitting cutters matched with the upper slitting cutters are evenly distributed on the lower cutting roller in the circumferential direction, a conveying channel is arranged between the upper cutting roller and the lower cutting roller, and a rotary wet tissue clamping mechanism is arranged at the position, corresponding to an outlet of the conveying channel, of the rack and comprises a rotary clamping roller rotationally arranged on the rack; the wet tissue slitting mechanism comprises a rack, a rotary clamping roller is arranged on the rack, clamping grooves are evenly formed in the rotary clamping roller around a shaft, clamping plates are arranged in the clamping grooves in the axial direction, clamping gaps are formed between the clamping plates and the clamping grooves, and a driving device used for driving the clamping gaps to change circularly is arranged on the rack. And the slitting efficiency is greatly improved.

The utility model discloses a fan -shaped shell grab bucket belongs to the technical field of grab bucket, including stand and two grab bucket bodies, and the upper end surface of each grab bucket body is fixedly arranged with the hinged rod, and the top of each hinged rod is rotatably connected with the stand, and the outer surface of stand is hinged to two hydraulic telescopic rods, and the output of each hydraulic telescopic rod is hinged to corresponding grab bucket body, the top of each hinged rod is fixedly arranged with the gear, when using, when two grab bucket bodies drive two hinged rods synchronous rotation, two hinged rods synchronous rotation drive two gears rotate, because two gears interlock, when because two hydraulic telescopic rods exist action difference and lead to two grab bucket bodies rotate out -of -step situation appears, two gears can guarantee two hinged rods synchronous rotation, and then guarantee the synchronous rotation of grab bucket body, avoid two grab bucket bodies to have the phenomenon of throwing material behavior when the material of grabbing hoisting.

The application provides a magnetic rotating speed signal disc structure and belongs to the technical field of signal discs. The magnetic rotating speed signal disc structure comprises a supporting mechanism and a magnetic structure. The supporting mechanism comprises a mounting plate and a supporting plate. The supporting plate is annular. The magnetic structure comprises a spaced magnetic ring, a connecting plate and a fixing piece. The spaced magnetic ring is sleeved outside the supporting plate. By arranging the mounting plate and the supporting plate, an inner ring with stable structure and light weight can be formed. By arranging the spaced magnetic ring, the connecting plate and the fixing piece, the traditional convex tooth and concave tooth structure can be replaced. In the rotating process, the alternating magnetic poles can change the magnetic field around the sensor periodically like the traditional convex tooth, finally generate the rotating speed signal with the same principle, greatly reduce the volume and the weight, and ensure the synchronous rotation through the connecting plate and the fixing piece. In addition, the connecting plate and the fixing piece can be disassembled, maintained and replaced in the later period, and the practicability is improved.

The emulsification device comprises an asphalt main table, a vertical stand column is installed on the end face of the asphalt main table, a reaction bin is installed on the vertical stand column through a middle-layer supporting plate, a stirring and conveying structure is arranged in the reaction bin, and a stirring and conveying structure is arranged above the reaction bin. The emulsifying bin and the asphalt bin are mounted on the vertical stand column in parallel, and the asphalt bin is communicated with the reaction bin through a detection discharge structure. According to the asphalt fluidity monitoring device, the viscosity of asphalt can be rapidly detected through a detector arranged in the detection discharge structure, fluidity monitoring is achieved, under the qualified condition, a linkage motor can drive an asphalt control valve and a detection valve to be opened at the same time, detected asphalt and undetected asphalt can flow into a reaction bin, and the fluidity of the asphalt can be monitored. Moreover, waste of asphalt detection is avoided, and industrial production is facilitated.

The utility model provides a grounding sealing wire winding device which comprises a power device and a rotating device, the power device comprises a bottom plate, a gear motor is fixedly installed at the geometric center of the bottom plate, an output shaft of the gear motor is fixedly connected with a first cross chuck, and the first cross chuck comprises a first chassis. The four corners of the first base plate are each provided with a first L-shaped clamping lug, and a first cross-shaped clamping groove is formed between every two first clamping lugs. The first cross chuck is connected with a rotating device, the rotating device comprises a second cross chuck, the second cross chuck comprises a second base plate, the second base plate is in a cross shape, the four corners of the second base plate are each provided with a second L-shaped clamping lug, each second clamping lug comprises two second lug plates, and second cross-shaped clamping grooves are formed between the second clamping lugs. According to the utility model, semi-automatic winding of the grounding sealing wire can be realized, semi-automatic winding of the grounding sealing wire is realized, and the workload of operators is reduced.

The utility model relates to the technical field of medical instruments, in particular to a knee joint rheumatism acupotomy scope treatment auxiliary device which comprises a main frame, adjusting grooves are formed in the top end of the main frame in pairs, servo motors are fixedly arranged on the side walls of the adjusting grooves, threaded rods are coaxially and fixedly arranged at the output ends of the servo motors, and the threaded rods are connected with the adjusting grooves. The other end of the threaded rod is rotationally arranged on the side wall of the adjusting groove, first rotating beams are rotationally arranged at the top end of the main frame in pairs, an adjusting block is slidably arranged on the side wall of the adjusting groove, the outer wall of the threaded rod is sleeved with the side wall of the adjusting block, and a second rotating beam is rotationally arranged at the top end of the adjusting block. The adjusting block is controlled to slide through the servo motor so as to drive the rotating beam to rotate, the rotating beam is bound with the four limbs of the patient, the rotating beam rotates to drive the thigh and the shank to rotate so as to adjust the bending degree of the knee joint, and the technical effect of adjusting the knee joint is achieved; the technical problem that the bending angle is difficult to adjust in the prior art is effectively solved.

The utility model discloses a shield machine cutter wear detection device, aims at providing a shield machine cutter wear detection device of quick detection propeller wear state through data comparison. It includes: mounting seat, elevating support, elevating support installs on mounting seat, and elevating support is connected with mounting seat slidingly, rotating component, rotating component installs on elevating support, clamping component, both sides of rotating component all are equipped with clamping component, and the hobbing cutter disc is installed on clamping component, and the fit component is installed on mounting seat and is corresponding with the hobbing cutter disc, and the control panel is installed on mounting seat, and the control panel is electrically connected with the fit component. The utility model has the beneficial effects that: through data comparison quick detection propeller wear state, can realize the elevating support's elevating, can realize synchronous rotation, can fix the hobbing cutter disc, can guarantee that synchronous belt can rotate stably, can limit the elevating of elevating support, can detect the different hobbing cutter disc fast.

The utility model discloses a textile fabric winding device for spinning, which relates to the technical field of winding devices and comprises a workbench, a mounting box is fixed at the top of the workbench, two symmetrical mounting racks are arranged in the mounting box, and a driving mechanism for driving the two mounting racks to move is arranged outside the workbench. Sleeve heads are installed on the faces, close to each other, of the two installation frames, the same hollow rod is installed between the two sleeve heads, external threads are arranged on the two parts of the outer wall of the hollow rod, nuts are connected to the external threads in a threaded mode, and a sleeve arranged on the outer wall of the hollow rod in a sleeving mode is arranged between the two nuts. Wherein a servo motor for driving the sleeve head to rotate is installed on the outer wall of one installation frame, a plurality of limiting grooves are evenly formed in the outer wall of the sleeve head, limiting blocks matched with the limiting grooves are fixed to the inner wall of the hollow rod, and the arranged sleeve can be produced in batches. The textile fabric take-out device can take out the wound textile fabric in a complete set, and is convenient to use and practical.

The utility model relates to the technical field of universal joints, in particular to a universal joint testing tool, which comprises a bottom frame and a top seat fixed at the top of the bottom frame, a fixed shaft is fixed at the center of the top seat, a movable track seat is rotatably sleeved on the fixed shaft, a fixed track groove is further arranged on the top seat along the radial direction, and the movable track seat is fixed on the fixed track groove. Sliding seats are arranged in the movable track seat and the fixed track groove in a sliding mode, the two sets of sliding seats are used for fixing two end shafts of the universal joint respectively, the sliding seat in the movable track seat is arranged on a first lead screw in a sleeving mode through a threaded hole, and the sliding seat in the fixed track groove is arranged on a second lead screw in a sleeving mode through a threaded hole; the distance between the two groups of sliding seats can be adaptively adjusted according to the overall length of the universal joint to be detected, so that the center of the universal joint can be quickly positioned, the distance between the two groups of sliding seats and the fixed shaft can be quickly adjusted by using the bidirectional transmission mechanism, and the installation efficiency of the universal joint is improved.

The invention relates to the field of electrophoresis recovery, in particular to an energy-saving RO electrophoresis recovery system. A cylinder, a cover, an inlet and outlet pipe, an electromagnetic guide rail, a cleaning plate, an arc-shaped protrusion and a filter element are arranged. The electromagnetic guide rail adsorbs and fits the outer wall of the cleaning plate to the inner wall of the cylinder. The electromagnetic guide rail rotates after being energized. The cleaning plate is adsorbed in the cylinder by magnetic force and rotates along the inner wall of the cylinder. Backwash water enters the cylinder from the inlet and outlet pipe on the upper cover. The backwash water is continuously input into the cylinder to flush the filter element in the cylinder. The arc-shaped protrusion circulates and squeezes the filter element in the cylinder to squeeze out impurities blocked in the filter element. The squeezed impurities flow out of the cylinder from the inlet and outlet pipe on the lower cover along with the backwash water, thereby cleaning the filter element and reducing the backwashing time. The filter element does not need to be taken out for cleaning, and the backwashing efficiency and the service life of the filter element are effectively increased.

The utility model discloses a cubic boron nitride grinding wheel, and particularly relates to the field of grinding wheels, the cubic boron nitride grinding wheel comprises a lining assembly and a tightening latch, the lining assembly is sleeved with an inner steel ring, a plurality of supporting assemblies are installed in the inner steel ring, and the inner steel ring is sleeved with a boron nitride grinding wheel body. One ends of the multiple supporting assemblies are jointly connected and matched with the lining assembly, the other ends of the multiple supporting assemblies are jointly connected and matched with the boron nitride grinding wheel body, and the tightening latch is used for connecting the lining assembly and the inner steel ring. According to the utility model, the boron nitride grinding wheel and the internal steel ring can be detached, so that when the boron nitride grinding wheel is damaged, the boron nitride grinding wheel can be directly replaced, and the internal steel ring part can still be directly used, thereby reducing the waste of resources and simultaneously reducing the manufacturing cost of the boron nitride grinding wheel.

The utility model discloses a pressurized penetration type chenille decorative cloth drying and dehumidifying device, which relates to the field of decorative cloth production, and comprises a processing box and two extrusion rollers rotationally connected with one side in the processing box, and a plurality of tension rollers are rotationally connected with the interior of the processing box on one side of the extrusion rollers. The two ends, on one side of the tensioning roller, of the interior of the treatment box are fixedly connected with placing frames, the bottom end, below the extrusion roller, of the treatment box is fixedly connected with a collecting box, connecting blocks are connected to the interiors of the placing frames in a clamped mode, one end between the connecting blocks is fixedly connected with a winding roller, and the two ends of the placing frames are provided with dismounting and mounting mechanisms; and the dismounting and mounting mechanism is used for quickly dismounting and mounting after winding of the winding roller is finished. According to the pressurized penetrating type chenille decorative cloth drying and dehumidifying device, the clamping blocks are pulled towards one end, the connecting springs are stressed, the length is increased, meanwhile, the clamping blocks are separated from the clamping grooves, and therefore the wind-up roller is taken out from the interior of the containing frame, and the working time during disassembly and assembly is shortened.

The utility model provides a kind of efficient base material condenser, including base, the top center of base is fixed with center column, the top of center column is fixed with center tube, the upper end of center tube is fixed with top cover, the surface on top cover is equidistant and is equipped with feed inlet, and top cover is located the bottom of center tube periphery and is equipped with heat dissipation cylinder, the inside of center tube is provided with U type heat absorbing pipe, and the inner wall of heat dissipation cylinder is provided with serpentine pipe, the top of heat dissipation cylinder is provided with first bearing frame, and the bottom of heat dissipation cylinder is provided with second bearing frame, relative to prior art, by the first bearing frame and second bearing frame of staggered can alternately receive base material, and under the driving of driving assembly, moving direction is opposite, can a group of base material is sent out, a group of receiving material, along heat dissipation cylinder and center tube movement, base material is sufficiently heat-dissipated, improve contact time, improve the cooling efficiency of whole.

The utility model discloses a dial formula radius compasses, including the casing and the handle connected at its top, install the dial on the casing, the center rotation of dial is connected with the central shaft, and the front end of central shaft is provided with the pointer, and the lower extreme of casing is rotatively connected with the pen nib branch leg and the needle foot branch leg of symmetrical distribution respectively, and one coaxial of pen nib branch leg and needle foot branch leg is provided with the locking mechanism, and pen nib branch leg and needle foot branch leg are connected with the central shaft through transmission mechanism. The utility model need not ruler, and the operation is simplified: the synchronous linkage of branch leg and pointer is realized through transmission mechanism, and the indication value of pointer on dial directly corresponds the radius, need not the help of ruler measurement, reduces the operation step, and promotes the mapping efficiency, and the adjustment is convenient, and the operation is stable: the radius adjustment can be realized through "manual break branch leg" or "auxiliary nut fine adjustment", and the cooperation of nut and extension screw rod, the elastic clamping design of protection cap all promote the operation stability, and save the labor and not easy to slip.

The invention discloses a nut cleaning device in the technical field of cleaning equipment. The nut cleaning device comprises a cleaning cylinder, a feeding port is formed in the cleaning cylinder, a motor is fixed outside the cleaning cylinder, a rotating disc is arranged in the cleaning cylinder, the rotating disc is fixed to an output shaft of the motor, and a plurality of filtering holes are evenly distributed in the rotating disc; the deslagging mechanism comprises a vertical rod, the vertical rod is arranged in the cleaning cylinder, the top end of the vertical rod is of a tip design, the rod diameter of the vertical rod is smaller than the hole diameter of a threaded hole of the nut, and a thread gauge is arranged in the middle of the vertical rod; the two fixing assemblies are fixed to the inner wall of the cleaning cylinder side by side and used for clamping and fixing the vertical rod so that the vertical rod can be vertically fixed in the cleaning cylinder. A supporting rod is fixed to the inner wall of the cleaning cylinder, a rotating motor is fixedly connected to the supporting rod, and a linkage rod is fixed to an output shaft of the rotating motor; the material guide plate is obliquely fixed to the top of the cleaning cylinder, and the bottom end of the material guide plate is located at the feeding port. According to the scheme, the problem that metal filings in internal threads of an existing nut are not easy to clean is solved.

The invention discloses non-oxidation drawing forming equipment for high-purity aluminum wires, which comprises a support frame, a sealing box fixedly connected to the top end of the support frame, a box door hinged to the side end of the sealing box, a driving part arranged on the sealing box and used for driving the aluminum wires to move along the radial direction of the aluminum wires, and a forming part arranged on the sealing box and used for drawing and forming the aluminum wires, the sealing box is provided with an annealing piece used for conducting annealing treatment on the aluminum wire after the aluminum wire is drawn and formed. Rapid heating, high heating efficiency and low energy consumption of the aluminum wire are achieved through the annealing piece by adopting the electromagnetic induction principle, the low-temperature high-purity argon annular spraying quenching of the spray gun can rapidly lock the microstructure of the aluminum wire, grain coarsening is prevented, the partition plate separates the induction heating area and the quenching area, mutual interference of heat is avoided, the stable annealing effect is guaranteed, and the service life of the aluminum wire is prolonged. And meanwhile, a micro-positive pressure environment is established through the air flow difference between the exhaust groove and the spray gun, air permeation is thoroughly blocked, argon recovery and purification are combined, it is guaranteed that the aluminum wires are not oxidized in the whole process, and the argon use cost is reduced.

The utility model belongs to the field of civil engineering construction stirring equipment, particularly relates to a construction stirring device, and aims to solve the problems that the utilization rate of civil engineering raw materials is reduced due to the fact that the conventional stirring device adopts a horizontal discharge port for discharging, stirred raw materials can be remained in a stirring tank, and the following scheme is provided: the construction stirring device comprises a base for supporting, the stirring barrel is arranged at the top of the base and used for stirring civil engineering raw materials, a first mounting ring and a second mounting ring are rotationally mounted on the outer side of the stirring barrel, and a fixing plate is fixedly arranged at the bottom of the second mounting ring; and the unloading mechanism is arranged at the top of the base, is used for driving the stirring barrel to longitudinally deflect for unloading, and can drive the stirring barrel to longitudinally deflect around a deflection shaft, so that the stirred civil engineering raw materials can be completely poured out of the outer side of the stirring barrel from a material inlet and a material outlet of the stirring barrel, and the utilization rate of the civil engineering raw materials is increased.

The utility model belongs to the technical field of engine heat dissipation, and discloses an electromagnetic clutch reversing fan for an engine, the electromagnetic clutch reversing fan comprises a reversing fan body, a belt pulley, a clutch mechanism and a bracket, the reversing fan body comprises a reversing mechanism and a plurality of fan blades arranged on the peripheral side of the reversing mechanism, and the reversing mechanism can adjust the angles of the fan blades. The belt pulley and the reversing mechanism are coaxially arranged, the clutch mechanism comprises an iron core and a coil which are arranged on the belt pulley, and when the coil is powered on, the iron core can generate magnetic attraction force towards the belt pulley on the reversing mechanism so that the reversing mechanism can abut against the belt pulley to rotate along with the belt pulley. The bracket penetrates through the belt pulley and extends into the reversing mechanism to support the belt pulley and the reversing mechanism, so that oil consumption is reduced when an engine is started or the temperature is low, the utilization rate of output power of the engine is improved, meanwhile, the situation that a transmission belt is prone to fatigue fracture due to instant impact is avoided, and the service life of the transmission belt is prolonged. And the reliability of the engine is further ensured.

The present application relates to a rotary drywall screw with adjustable nail rod radius, belonging to the technical field of drywall screws, which comprises a nail head, a nail rod is fixedly arranged on the nail head, a nail tail is fixedly arranged on one end of the nail rod away from the nail head, a plurality of arc plates are arranged on the peripheral side of the nail rod, a thread is arranged on the side of the arc plate away from the nail rod, both sides of the arc plate close to the nail head and the nail tail are arranged as inclined surfaces, a first push sleeve is arranged on the side of the nail head facing the nail rod, a side wall of the first push sleeve is arranged as an inclined surface, a second push sleeve is arranged on the side of the nail tail facing the nail head, the second push groove is arranged outside the nail rod, the second push sleeve is threadedly connected to the nail rod, the side wall of the second push sleeve is arranged as an inclined surface, an auxiliary component capable of driving the first push sleeve and the second push sleeve to move is arranged at the nail head, and the auxiliary component can rotate synchronously with the nail head, and a connecting component for connecting the first push sleeve and the second push sleeve to the arc plate is arranged at the nail rod. The present application has the effect of improving the applicability of the drywall screw.

The invention provides a welding device for a stainless steel liquid cooling pipe, and relates to the technical field of welding machining of the stainless steel liquid cooling pipe, the welding device comprises a clamping structure B, a clamping structure A, a pipe driven structure and a welding device main body, the clamping structure B comprises a three-jaw chuck B, an adapter ring B, a bearing seat and a fixed vertical frame; the clamping structure A comprises a C-shaped vertical frame, a vertical plate, a three-jaw chuck A, an adapter ring A and a retaining ring; according to the technical key points, one end of a stainless steel liquid cooling pipe head is inserted into a three-jaw chuck B to be fixed, and one end of the top of a stainless steel liquid cooling pipe body is inserted into a three-jaw chuck A, so that one end of the stainless steel liquid cooling pipe body penetrates through an adapter ring A, extends to the top of a C-shaped vertical frame to be fixed and is in butt joint with the stainless steel liquid cooling pipe head; in the process that the stainless steel liquid cooling pipe head and the stainless steel liquid cooling pipe body rotate synchronously, the welding device body can weld the connecting area of the stainless steel liquid cooling pipe head and the stainless steel liquid cooling pipe body so as to avoid torsional stress, and the limitation degree is greatly reduced in the welding work of the stainless steel liquid cooling pipe.