59results about How to "Easy to turn" patented technology

The invention provides a method for manufacturing a hose connector core, which comprises the following steps of: performing spheroidizing annealing on a wire rod blank material serving as a raw material; performing phosphate coating surface treatment on the wire rod blank material subjected to spheroidizing annealing; performing fine drawing sizing, and cutting a wire rod finished product material subjected to fine drawing sizing into single hose connector core blank materials; and manufacturing the blank of the hose connector core by using a seven-station cold heading method and a cold heading machine. The wire rod material is used for replacing a straight bar material and a broken material, so that the requirement of multi-station cold heading continuous production can be met, and the loss of a material head and a material tail is reduced; stations are reasonably designed, so that the physical property and the quality of a product are improved, and the product has good surface appearance; a material part is easily subjected to plastic deformation in the cold extrusion process, and the loss of a die is low; and finish machining production speed is doubled.

The invention discloses a deformable wheel capable of climbing stairs. The wheel comprises an outer wheel hub and an inner wheel hub which are coaxially arranged and can relatively rotate; the outer edge of the outer wheel hub is evenly and fixedly provided with a plurality of fixed spokes, and wheel flanges are hinged to the two sides of the top of each fixed spoke respectively; every two adjacent wheel flanges are connected through a sliding groove and sliding pin structure; movable spokes the number of which is equal to that of the fixed spokes on the outer wheel hub are hinged to the innerwheel hub, and the other end of each movable spoke is connected with the two corresponding wheel flanges through the corresponding sliding groove and sliding pin structure. The inner wheel hub is controlled to rotate relative to the outer wheel hub, each movable spoke drives movable ends of the two corresponding wheel flanges to be folded or unfolded, all the wheel flanges can be changed into a pointed gear shape or a circular shape, and therefore the purpose of automatic conversion between the mode of walking on the ground and the mode of walking up and down stairs is achieved. The wheel hasthe advantages that the structure is compact, the strength is ensured, the stability is good, the functions are easy to achieve, the automation degree and followability are high, and the applicationrange is wide.

The invention relates to the technical field of vehicle cleaning equipment, and particularly relates to a vehicle cleaning robot. The vehicle cleaning robot comprises a travelling chassis, a lifting platform arranged above the travelling chassis, a manipulator arranged on the lifting platform, and a scrubbing assembly arranged at an operation end of the manipulator. The vehicle cleaning robot further comprises an image acquisition device, a distance monitoring device and a control device. With the adoption of the vehicle cleaning robot, the automation of vehicle cleaning working is realized, and the labor intensity of the vehicle cleaning working is reduced; and in addition, the vehicle cleaning robot is capable of analyzing the dimensions of a vehicle to be cleaned and planning the running track of the scrubbing assembly before the cleaning working, and in this way, the cleaning efficiency of the vehicle cleaning robot is increased, and on the other hand, the overall running track length of the scrubbing assembly in the cleaning process is reduced, so that consumption for water is reduced.

The invention discloses an intelligent water surface cleaning robot. The robot comprises a ship body, and a power device, a navigation device, an identification device, a collection device, a conveying device, a power supply device and a control module which are arranged on the ship body, and the power device, the navigation device, the identification device, the collection device, the conveying device and the power supply device are connected with the control module. The control module is in communication connection with a ground control terminal and used for receiving an instruction of the ground control terminal so as to control the power device, the navigation device, the identification device, the collection device, the conveying device and the power supply device, and therefore the cleaning robot can circularly traverse the water surface according to a straight-line turn-back type track on the water surface. The garbage cleaning rate is improved, fault monitoring and early warning are conducted on the cleaning robot at the same time, it is guaranteed that the cleaning robot can smoothly return to a parking point when the cleaning robot is abnormal, and the reliability and thecruising safety of garbage cleaning are improved to the maximum extent.

The invention discloses a method for shaping a scaling ladder type plastic-dipped metal rack tree. The method mainly comprises the following steps of: (1) designing special parameters of a tree shape, destructing a certain quantity of single plants according to corresponding parameters, and manufacturing a tree cultivation shape technical pattern of the corresponding single plants; (2) manufacturing and mounting a scaling ladder type plastic-dipped metal rack and a supporting frame, so as to manufacture a tree cultivation template; (3) planting shaped nursery stocks in a nursery cultivation field below the scaling ladder type plastic-dipped metal rack; (4) when a tree grows to an oriented tree cultivation height, binding tree twigs on the tree cultivation template in an oriented manner; and (5) carrying out shaped nursery stock management, mainly including bud fixing, bud picking, binding and unbundling, and thickening cultivation. The method provided by the invention has the advantages of simpleness in operation, good shaping effect and long shaping retention period; the ornamental value is improved, and the watch time is prolonged; the scaling ladder type plastic-dipped metal rack and the supporting frame are durable, and can be continuously shaped for many years, so that the requirement of a shaping length can be met; the polarized shaping can be realized; the trees are prevented from being damaged; and the standard scale production can be realized by accurately shaping according to the pattern.

The invention belongs to the field of microwave technologies, and specifically relates to a fast controllable polarizer for a high-power electron cyclotron resonance heating system. The fast controllable polarizer comprises a microwave reversing bend, a mounting base plate, a polarization mirror, a polarization mirror rotating mechanism and a rotation driving mechanism, and is characterized in that the microwave reversing waveguide bend is used for transmitting high-power microwaves and realizing 90-degree reversing in transmission direction of the microwaves; the mounting base plate is used for positioning the polarization mirror, the polarization mirror rotating mechanism and the rotation driving mechanism on the microwave reversing bend; the polarization mirror is used for reflecting the microwaves and realizing changes in microwave polarization mode while rotating; the polarization mirror rotating mechanism is used for realizing rotation of the polarization mirror in a vacuum environment; and the rotation driving mechanism is used for realizing accurate positioning control and protection for rotation of the polarization mirror. The fast controllable polarizer is high in positioning accuracy and capable of being fast controlled remotely, can MW-magnitude long-pulse millimeter waves stably and efficiently, and can meet an arbitrary control requirement of the electron cyclotron system for the microwave polarization mode.

The invention discloses a carrying robot and a mechanical arm, and relates to the technical field of robots. The carrying robot comprises a base, driving mechanisms are mounted on the two sides of thebase, a stabilizing mechanism is mounted in the base, and a swing arm mechanism is mounted on the base. According to the carrying robot and the mechanical arm, first servo motors operate to drive driving wheels to rotate, crawler belts are driven to rotate, and therefore the carrying robot is driven to move for transferring; turning operation can be carried out well through the two independent first servo motors, a main control panel of the robot controls a fourth servo motor to operate in the forward direction, therefore, the fourth servo motor operates to drive a threaded rod to rotate in athreaded pipe, the threaded pipe drives a balance weight to move towards the left side, the weight at the left end of the carrying robot is increased, and the weight of an object grabbed by the rightend can be offset; the object grabbing stability of the carrying robot is improved, and the problem of falling down caused during grabbing or conveying is avoided.

The invention relates to a vertical-axis wind turbine with flow collection blades and a low gravity center. The vertical-axis wind turbine comprises a fixed tower and a wind wheel, wherein the fixed tower is used for determining a vertical rotation axis, the wind wheel is supported on the tower, and the wind wheel and the tower form a horizontal rotation pair constrained axially; the wind wheel comprises a wheel frame and the flow collection blades, the rotation center of the wheel frame is supported on the tower, and the flow collection blades are distributed around the wheel frame; each flow collection blade is composed of a set of fins distributed in parallel at intervals, and the flow collection blades vertically extend and are provided with streamline-shaped sections; the wheel frame is composed of a set of spokes circumferentially distributed, extending horizontally and corresponding to one another in an up-down mode, and the outer ends of the spokes corresponding to one another in the up-down mode are fixedly connected or rotatably connected with upper corresponding portions and lower corresponding portions on the blades. By means of the structure, wind energy utilization performance of the flow collection blades can be fully used.

The invention discloses a clamp for difficult-to-machine material turning surface observing. The clamp comprises an installation disc. A boss protruding out of the upper surface of the installation disc and being capable of reserving knife receding space for a turning knife is arranged in the center of the installation disc, a T-shaped groove penetrating through the surface is formed in the upper surface of the installation disc in the radial direction, at least two T-shaped bolts capable of fixing small workpieces to the T-shaped groove are symmetrically arranged in the T-shaped groove along the center of the installation disc, and the center of the installation disc is provided with a center clamping bolt used for fixing a circular plate located on the boss. The boss is symmetrically provided with at least two positioning bolts used for positioning the circular plate along the center clamping bolt. The lower surface of the installation disc is provided with an installation handle matched with a three-jaw chuck of a lathe. The invention further discloses a turning experimental method based on the clamp. The installation disc can effectively clamp the positioning workpieces, and the small workpieces can be clamped at everywhere in the T-shaped groove through a T-shaped bolt clamping mechanism. Turning can be carried out conveniently, and reliability is high.

The invention provides a supporting frame for machining a turbine high pressure outer cylinder back oblique pipe orifice through a boring machine facing head, and relates to a supporting frame for machining a turbine high pressure outer cylinder back oblique pipe orifice through a boring machine facing head, and aims to solve the problems that in the prior art, one side of a high pressure outer cylinder is cushioned up through a mat box so that a certain angle can be formed between the high pressure outer cylinder and a workbench, and the position and the height of the mat box should be adjusted repeatedly, and time and labor are wasted in the process. A first connecting lug assembly is fixedly connected with a base and the first connecting lug assembly is connected with a first rod through a first hinge pin in a rotating mode, a boss is fixedly connected with the other end of the first rod, two stop pieces are fixedly connected with the first rod and a gap is formed between the two stop pieces, a second connecting lug assembly is fixedly connected with the base, one end of a second rod is connected with the second connecting lug assembly through a second hinge pin in a rotating mode, both the first hinge pin and the second hinge pin are arranged parallel to the wide edges of a rectangular plate, a groove is formed in the other end of the second rod, and the groove is matched with the first rod which is arranged between the two stop pieces. The supporting frame for machining the turbine high pressure outer cylinder back oblique pipe orifice through the boring machine facing head is used for supporting the boring machine facing head so that the turbine high pressure outer cylinder back oblique pipe orifice can be machined.

The invention discloses automatic spraying equipment for an agricultural pesticide. The automatic spraying equipment comprises a pesticide spraying device; the pesticide spraying device comprises a chassis; the top of the chassis is separately and fixedly connected with a water storage tank, a pesticide preparation tank and a pesticide storage tank; and the right side surface of the water storagetank is fixedly connected with the left side surface of the pesticide preparation tank. A servo motor drives a transversal gear to rotate, and the transversal gear rotates to drive a driving gear to rotate, so that it is convenient to control a rotating shaft to drive a moving wheel to rotate, and it is convenient to drive the pesticide spraying device to move; and a regulating shaft is movably connected with a connecting plate by a movable shaft, so that it is convenient for the regulating shaft to rotate, the angle of a front wheel is changed, it is convenient for the pesticide spraying device to realize the operation of making a turn and pesticide spraying treatment on a farmland, the advantage of automatic spray is achieved, and the problems of relatively low spraying efficiency and relatively high manpower consumption caused by artificial spraying required by existing pesticide spraying are solved.

The invention relates to an abrasion-resistant alloy mortar pump impeller and a manufacturing method of the abrasion-resistant alloy mortar pump impeller. The impeller comprises a front end cover and a rear end cover. The front end cover and the rear end cover are made of abrasion-resistant alloy. The surface of the front end cover is provided with front auxiliary blades, the surface of the rear end cover is provided with rear auxiliary blades, and the front end cover and the rear end cover are connected through the blades. The middle of the rear end cover is provided with a shaft hub comprising an embedded part and an embedded matching part. The embedded part is made of cast steel, and the embedded matching part is made of abrasion-resistant alloy. Both the embedded part and the embedded matching part are of a hollow cylinder structure. The outer wall of the embedded part is provided with grooves surrounding the outer wall. The inner wall of the embedded matching part is provided with protrusions which surround the inner wall and are matched with the grooves of the outer wall. The embedded part is located in the embedded matching part, and the grooves of the embedded part and the protrusions of the embedded matching part are matched and spliced into a whole. The abrasion-resistant alloy mortar pump impeller is convenient to produce and machine, time, labor and materials are saved, production efficiency can be enhanced, and cost can be reduced.

The invention discloses a lighting box which comprises a box body and a box cover. The box cover is connected with damping of the box body through a rotating shaft assemble in a rotating mode. A lamp plate is fixedly placed inside the box cover. A plurality of lighting lamps are fixedly placed on the lamp plate. A power supply capable of supporting electric power to the lighting lamp is placed inside the box body. Compared with the prior mobile lighting equipment, because the rotating shaft assemble is used for connecting the box body and the box cover, the box body can rotate relative to the box body in a damping mode. Lighting directions of the lighting lamps inside the box body can be adjusted through rotation of the box cover, and therefore great convenience are brought to work at night or in dark places. When the lighting box is not in use, the box body and the box cover are put together, and therefore not only a function of protecting the lighting lamps but also functions of dust prevention and moisture prevention can be achieved.

The invention discloses a rotary holding and clamping mechanism and a rotary holding and clamping trolley, and relates to the technical field of mechanical carrying. The problems of high labor intensity and potential safety hazards of manual carrying of material coils in plastic printing are solved. The rotary holding and clamping trolley comprises a frame and a chassis, a rotary lifting mechanismand a rotary holding and clamping mechanism are arranged on the chassis, and the rotary holding and clamping mechanism comprises a base. A rotary disc and a rotation driving mechanism for driving therotary disc to rotate in a vertical plane are arranged on the base, and a fixed arm and a movable arm are oppositely arranged on the rotary disc. The movable arm comprises a hinged support fixedly connected with the rotary disc, a rotary arm is hinged to the hinged support, a V-shaped clamping plate is hinged to the end, away from the hinged support, of the rotary arm, and a holding and clampingoil cylinder for driving the rotary arm to swing up and down around the hinged support is arranged on the rotary disc. According to the rotary holding and clamping mechanism and the rotary holding andclamping trolley, integrity is high, the structure is small, exquisite and compact, operation is simple and convenient, turning and moving of the rotary holding and clamping trolley are convenient, limitation from the operation site area is small, flexible operation in the small space is facilitated, and the application requirements of the printing clean workshop with the high clean requirement,small space and high load requirement are met.

The invention discloses a photo-cured hydrogel conveying device for minimally invasive surgery and an in-situ printing method. The device comprises a shell, a rotary steering structure and a coaxial spraying nozzle, wherein the rotary steering structure and the coaxial spraying nozzle are installed in the shell, the coaxial spraying nozzle is installed in the shell, and the outlet of the coaxial spraying nozzle is located outside. The posture is changed and adjusted through the transmission of an internal bevel gear group, the rotation of a handle around the Y axis is converted into the rotation of the coaxial spraying nozzle around the X axis, and the rotating range of the coaxial spraying nozzle is 0-180 degrees. The posture is indicated by scale lines on the outer handle, the rotating angle of the handle is indicated by the outer circle, and the rotating angle of the coaxial spraying nozzle at the tail end is indicated by the inner circle. The coaxial spraying nozzle is in a round tube shape. The outlet of the coaxial spraying nozzle is located on the longitudinal axis of a round tube. An embedded curing light source is adopted for one part of the coaxial spraying nozzle. The outer circle of the coaxial spraying nozzle has a material outlet effect and a light shielding effect. Illumination light sources are evenly distributed on the periphery of the coaxial spraying nozzle.By means of the continuous illumination and interval feeding segmented curing strategy, the material curing uniformity is ensured, and efficiency is improved.

The invention discloses a mechanical press cylinder piston guide ring lathe processing tool and usage of the mechanical press cylinder piston guide ring lathe processing tool. The processing tool is used for assistant processing a guide ring on the lathe. The processing tool comprises a cylinder which is cylindrical and concentric with the guide ring, a plurality of bolts and a concentric convex ring arranged at one end of the cylinder extending along the axial direction. The inner diameter of the convex ring is equal to that of the cylinder. The outer diameter of the convex ring is smaller than that of the cylinder. A ring-shaped installation groove is formed between corresponding end surfaces of the convex ring and the cylinder. A plurality of installation holes which are communicated with the installation groove are formed in the other end surface of the cylinder. The guide ring can contain the convex ring, is clamped in the installation groove and is locked in the plurality of the installation holes through the plurality of the bolts to be fixed with the cylinder. The mechanical press cylinder piston guide ring lathe processing tool has the advantages that an inner circle, an outer circle and the end surfaces of the guide ring can be processed fast and conveniently, the requirement of workpiece size can be effectively controlled through the fact that a machine tool is processed, and meanwhile detected and revised. The invention further provides the usage of the mechanical press cylinder piston guide ring lathe processing tool.

The invention relates to the field of track transit, in particular to a double-track turnout system, a double-track vehicle, a vacuum pipeline transportation system and an operation method of the vacuum pipeline transportation system. The double-track turnout system is arranged to be a double-suspension system comprising a first track mechanism and a second track mechanism, and a vehicle runs through the first track mechanism in a straight running state; and the vehicle runs in a turnout area through the second track mechanism; and when vehicle drives into or out of the turnout area, the firsttrack mechanism and the second track mechanism are adopted for performing transition conversion. According to the embodiment of the invention, the vehicle is converted from one track mechanism to another track mechanism, so that rapid and convenient turning of the vehicle is realized, and under the condition that the turnout is fixed, turning can be realized through up-and-down track transfer ofthe vehicle, response time is not needed, and the conversion process is in smooth transition, and the rear vehicle speed is not influenced; all vehicles on the main line can run at full speed, and efficiency is high; and the turnout is simple in structure, tracks do not need to be controlled, only vehicle track changing needs to be controlled, and cost is low.

The invention belongs to the field of stainless steel, and particularly relates to high-performance soft magnetic stainless steel and a manufacturing method thereof. The soft magnetic stainless steel comprises the following components in percentage by weight: less than or equal to 0.02% of C, 1.5-2.5% of Si, less than or equal to 0.8% of Mn, less than or equal to 0.03% of P, more than or equal to 0.15-0.35% of S, less than or equal to 0.4% of Ni, 13.0-15.0% of Cr, less than or equal to 0.02% of N, 0.2-0.8% of Mo, 0.15-0.30% of Nb, 0.005-0.012% of Re and the balance of iron and inevitable impurities. The preparation method comprises the steps that waste stainless steel is sequentially subjected to electric furnace smelting, AOD refining, LF refining, continuous casting, rolling and annealing, and the stainless steel is obtained. The stainless steel manufactured through the method is excellent in soft magnetic performance, high in saturation flux density and low in coercive force and residual magnetic flux density; meanwhile, stainless steel is good in corrosion resistance, and can work under various severe conditions; the stainless steel manufactured by the invention also has good machinability and good plasticity, and is beneficial to drawing and turning of downstream customers. In addition, the yield of the product prepared through the preparation method reaches 96% or above.

The invention relates to the field of machining, and particularly discloses a thin-wall cylindrical part clamp which is characterized by comprising a supporting shaft, an annular base coaxial with the supporting shaft is arranged on the supporting shaft, a connecting ring coaxial with the annular base is fixed to the inner side of the annular base, and the connecting ring is fixedly connected with the supporting shaft. A plurality of main supporting blocks are distributed on the peripheral side of the annular base in a circular array mode, each main supporting block is an arc-shaped section, connecting rods are fixed to the inner surfaces of the arc-shaped sections and face the supporting shaft, the connecting rods penetrate through the annular base and are connected to the annular base in a sliding mode, and reset springs are arranged between the connecting rods and the annular base. A nut is in threaded connection with the supporting shaft, a circular-truncated-cone-shaped pushing block is fixed to the end of the nut, and the supporting shaft is sleeved with the pushing block. The invention aims to solve the problems that an existing thin-walled cylinder part clamp is prone to cause clamping deformation of a workpiece and reduce the precision.

The invention relates to a cableway self-propelled transport apparatus which comprises a transport device traveling along a cableway rope and a turnout device arranged on the cableway rope and used for switching the traveling rail of the transport device. The transport device comprises at least one transport mechanism. Each transport mechanism comprises a transmission mechanism and a sliding mechanism which are movably connected. Each transmission mechanism comprises a frame, a first transmission assembly, a transmission reversing assembly and a second transmission assembly. Each sliding mechanism comprises a frame body, a third transmission assembly and a fourth transmission assembly. Each first transmission assembly is in transmission connection with the corresponding fourth transmissionassembly. Each second transmission assembly is in transmission connection with the corresponding third transmission assembly. Each transport mechanism is combined by the corresponding transmission mechanism and the corresponding sliding mechanism. The transmission mechanisms provide power for the sliding mechanisms. The sliding mechanisms can crawl along a cableway, and the transport device travels in a self-propelled mode along the cableway.

The invention relates to a baby stroller for twins. The baby stroller for twins comprises a front frame, a rear frame, a front support, a rear support, pushing handles, baby armrests, side supports, a game board, a bottom side beam, four wheels, a bottom net bag and baby seats; two baby seats are arranged to face each other so that babies can sit face to face; two transverse foot rests for carrying the feet of the babies are connected between the two side supports; one support is connected to the bottom of each transverse foot rest to the bottom side beam so that the supporting force can be increased; the game board is located between the baby armrests and fixed toys are arranged on the game boards; solar protection devices are connected back and forth above the baby stroller, respectively; the solar protection devices are seamlessly connected by use of magnets in the middle part; the net bag is connected by use of the front and rear frames and the supports. The baby stroller is convenient for the families having twins to use, babies can put on the seats at the same time, and the width and the height of the stroller are not increased, so that mothers can use the stroller while shopping in a supermarket, strolling in a park and walking on narrow and long paths; besides, the babies sit face to face and play together without crying as feel bored. The baby stroller for twins is reasonable in structure and convenient to use, and has excellent practicability.

The invention belongs to the field of underwater cable laying, and particularly relates to a ditching device for underwater cable laying and an underwater cable laying method.The ditching device comprises a ditching machine and a coulter assembly arranged at the tail of the ditching machine, and the coulter assembly comprises a base connected with the ditching machine, a support arranged on the base and a jet coulter arranged on the support through a driving assembly; a rotary seat is arranged on the base, the support is rotationally arranged on the rotary seat, the driving part drives the support to rotate along the rotary seat, and the locking structure is used for controlling the support and the base to rotate freely or be locked. The plough coulter assembly can freely move under extrusion of two sides of soil, namely freely swing along with an excavated sea ditch, so that a mechanical structure of the plough coulter assembly cannot bear redundant acting force borne by the soil of the sea ditch, and the situation that a trencher and the plough coulter assembly bear too large stress, and consequently mechanical parts are deformed and damaged is effectively avoided.

The invention provides a storage device for methyl methacrylate storage and a use method thereof. The storage device comprises a supporting frame, a storage tank, a top cover, a guide pipe, an opening and closing mechanism, a fixing support and a sliding column, and the use method comprises the steps of residue inspection, stored material input, overall transfer, stacking, material storage and stored material taking. The storage device for storing methyl methacrylate and the using method thereof have the advantages that the external structure of an existing storage device for methyl methacrylate is improved, the counteraction of the gravity of the storage tank is utilized, a pressing block slides towards the outer side of the shell through switching of rotation and sliding effects in a pressing assembly, the storage tank is fastened and clamped together with a ring sleeve, the situation that a tank body is prone to rotating and shaking in the hoisting state, large impact is generated on the sealing portion of a storage container is effectively prevented, and the adverse effect on the sealing performance of the tank body is reduced. In addition, the corresponding and complete using method of the storage device for methyl methacrylate storage is provided.

The invention provides a small laser engraving machine for a cubic column wood block and relates to the field of laser equipment. The small laser engraving machine comprises a base, an operation tablefixedly connected to the top of the base, a first case fixedly connected to one side of the operation table, a second case fixedly connected to the other side of the operation table, a Y-direction guide rail fixedly connected to the top of the first case and the top of the second case, an X-direction guide rail in sliding fit with the Y-direction guide rail, and a laser head in sliding fit with the X-direction guide rail. According to the small laser engraving machine for the cubic column wood block, when a workpiece in a cubic column shape is machined, at first, the workpiece in the cubic column shape is arranged between two clamping mechanisms, then an electric pushing rod is started, the electric pushing rod extends to enable the position of one clamping mechanism to get close to the other clamping mechanism, thus the distance between the two clamping assemblies is matched with the workpiece in the cubic column shape, then rotating handles on the two clamping mechanisms are rotated, and the rotating handles drive a first screw rod and a second screw rod to rotate synchronously.

The invention discloses a split roller and a process for machining a workpiece through the split roller. The split roller comprises roller bodies A, roller bodies B and a roller body C, wherein the roller bodies A, the roller bodies B and the roller body C are a whole set of the disc structure, the roller bodies B are arranged on a shaft shoulder of the roller body C and coaxial with the roller body C, a semicircular cavity is formed after the roller bodies B and the roller body C are combined, the roller bodies A are arranged on the outer side of the shaft shoulder of the roller body C and coaxially connected with the roller body C through bolts, and the roller bodies A and the corresponding roller bodies B are also connected through bolts, so that when the split roller is machined, the roller bodies A, the roller bodies B and the roller body C are integrated.

The invention discloses a pulling-tray type walking method for a rice harvester and a walking device thereof, relating to the technical field of cereals harvesting machinery. The walking device is composed of a rack (5), a harvesting subassembly (1), a seat member (10), a power member (20), a speed reduction member (12), a walking guide rotary drum member, a back support plate member and a pulling tray member. The walking device provided by the invention has the characteristics of simple structure, greater buoyancy, smaller resistance in the walking process, convenience for swerving and the like and can be used for the walk of the rice harvester or other agricultural machines; and the walking device is suitable for shallow mud paddy fields and is also suitable for bank mud fields with deep mud.

The invention discloses a novel pipeline connector. The novel pipeline connector comprises a connector main body, a pipeline A and a pipeline B, wherein the pipeline A and the pipeline B are of the same structure and are symmetrical, protruding limiting rings are arranged on the surface of the pipeline A and the surface of the pipeline B, the two sides of the surface of the pipeline A and the twosides of the surface of the pipeline B are each movably connected with two symmetrical supporting pads of the same structure, a first connecting protrusion and a second connecting protrusion are fixedly connected to the surface of each supporting pad, and the tops of the first connecting protrusions penetrate through an inner cavity of the connector main body and extend to the position above the connector main body. The novel pipeline connector is fixed through pins, the material cost of the pins is low, turning is convenient, one pin can replace one bolt, two flat gaskets, one elastic gasketand one nut, cost control is a major breakthrough, the use cost is reduced, pipe joint leakage caused by looseness in the use process is avoided, and the service life is prolonged.

The present invention relates to the field of target processing, in particular to a thread processing method for an isostatic cylindrical target. The present invention includes the following steps: providing a target thread and a copper sleeve. ~2mm machining allowance; turn the target material, turn one end face of the target material on the lathe, and finish turning the inner diameter of the target material; put the copper sleeve on the oven to heat and bake, and put the copper sleeve into the On the target, use isostatic pressing technology to make the copper sleeve and the target tightly fit together; drill the pin hole on the target on the drilling machine, and put the pin on it; further turn the target on the lathe Turn the thread on one side of the material, and turn the reference size of the target. The present invention realizes the purposes of simple processing, good product quality and high working efficiency through the above processing method.