295 results about "Machine design" patented technology

The invention relates to the technical field of fluid machinery design, and discloses a fluid machinery through-flow component intelligent design simulation system, which comprises a multi-physics field modeling module, which is used for constructing fluid mechanics, structural mechanics and heat conduction models based on preset boundary conditions and physical attributes; the intelligent optimization decision module is used for constructing and defining a through-flow performance optimization objective function; the cooperative calculation module is used for constructing a comprehensive performance evaluation model based on the candidate design parameter set; the virtual experiment feedback module is used for reconstructing a corresponding through-flow component structure model according to the multi-target evaluation result; and the scheduling control module is used for controlling algorithm path selection and computing resource allocation in the optimization process. According to the method, a method of combining multi-physics field coupling modeling and a dynamic feedback mechanism is adopted, and design parameters are continuously adjusted through simulation data fed back in real time, so that the optimization process can be dynamically updated according to actual operation conditions, and the optimization convergence speed and the overall performance are improved.

The invention discloses a CAD automatic generation system and method based on intelligent model selection and application, and aims at achieving automatic modeling under the multi-modal design requirement. The system comprises a user interaction module for receiving multi-modal input such as natural language, sketch and voice; the intelligent demand analysis module is used for combining an industrial large language model and a product knowledge graph, combining semantic analysis and generating a structured demand; the intelligent model selection calculation module is used for matching the optimal parameter combination and the component list based on a multi-objective optimization algorithm; the CAD automatic generation module calls a parametric modeling engine to generate an editable three-dimensional model; the constraint solving module is used for processing hard constraints and soft constraints in real time and dynamically adjusting model parameters; and the model output and interaction module feeds back a design state and supports user iteration. The system realizes full-process automation from the design intention to the CAD model, improves the design efficiency and accuracy, and is suitable for the fields of mechanical design, intelligent manufacturing and the like.

The invention discloses a high-precision and high-reliability harmonic reducer tooth profile simulation machining design method, and belongs to the field of precision transmission. A composite cycloid flexible gear tooth profile is designed by establishing a harmonic reducer geometrical relationship model, deducing a flexible gear deformation equation, an accurate rotation angle relationship and a meshing theory based on an envelope method, and a conjugate region and a conjugate tooth profile are calculated by utilizing MATLAB. Actual deformation and theoretical deformation errors of the flexible gear are analyzed through finite element simulation, flexible gear profile parameters are optimized, an actual neutral layer curve is generated, and then a rigid gear profile is enveloped and calculated. The tooth profile design adopts a non-zero inclination angle composite cycloid, so that the meshing area is expanded by more than 30%, and the maximum stress of the flexible gear is reduced by 22.75% in combination with a linear modification method and a finite element modification method. In addition, through a multi-physical field simulation verification system (including static deformation, dynamic contact and fatigue life prediction) and a neural network optimization tooth shape parameter, the transmission performance is remarkably improved. According to the method, the torsional rigidity can be improved by 66%, and the transmission error is controlled within a high-precision range.

The invention provides an electromagnetic compatibility design method and device based on a vehicle-mounted audio system. The method comprises the following steps: determining a target level of electromagnetic compatibility; performing risk assessment on the device in the drawing to obtain a risk assessment result; selecting clock frequency points of signal radiation from the devices meeting the design requirements; performing simulation verification on the vehicle-mounted audio system, and judging whether the vehicle-mounted audio system reaches a target level or not; if not, optimization design is carried out; if yes, carrying out near-field testing on the whole machine; judging whether the near-field test reaches a target level or not; if not, optimization design is carried out; if yes, performing a far-field test on the whole machine; judging whether the far-field test reaches a target level or not; if not, optimization design is carried out; if yes, ending; through simulation optimization, it is ensured that the electromagnetic compatibility of the whole machine design can reach an expected target level, and therefore the quality and reliability of products are remarkably improved; the research and development period can be shortened, and the research and development cost is reduced.

The invention provides a collaborative optimization method for a single-suction centrifugal impeller, and belongs to the technical field of fluid machinery design and optimization. Comprising the following steps: parameterizing a blade arc; based on a Hicks-Henne function, optimizing and correcting the function of the blade outlet angle, and determining an initial design parameter range of a curve needing to be fitted and a corresponding target; constructing a sample point database through a hyper-Latin sampling method in combination with a CFD numerical simulation technology; constructing a GWO-BP neural network model based on a grey wolf optimization algorithm, and training and predicting the model by using the sample point database; taking a prediction result of the GWO-BP neural network model based on the grey wolf optimization algorithm as a fitness function of a non-dominated sorting genetic algorithm NSGA-II; and optimizing the fitness function through a non-dominated sorting genetic algorithm NSGA-II to generate a Pareto frontier solution.

The invention relates to the field of mechanical design and manufacturing, and provides a three-dimensional model processing method, a training and application method of a system, equipment and a medium, and a target boundary representation three-dimensional model is obtained based on a preset complex manufacturing feature model and a boundary representation three-dimensional model. The complex manufacturing feature model is added to the boundary representation three-dimensional model containing the simple structure manufacturing feature model, so that the boundary representation three-dimensional model containing the simple structure manufacturing feature model and the complex structure manufacturing feature model is synthesized. According to the three-dimensional model processing scheme provided by the invention, the complex manufacturing feature model is added in the boundary representation three-dimensional model, so that when the boundary representation three-dimensional model obtained by the processing scheme is used for training an image classification system, the image classification efficiency is improved; the generalization ability of the image classification system and the classification accuracy of the manufacturing feature model in the boundary representation three-dimensional model can be improved, so that the production efficiency and quality of process products are improved.

An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft comprises an electrical motor assembly and an inverter assembly. The inverter assembly comprises a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and a plurality of positioning pins. The capacitor assembly comprises a center hole, at least one capacitor, a capacitor housing having at least one busbar, and a plurality of through holes in the capacitor housing. The capacitor assembly and the at least one PCBA are positioned inside the housing. The plurality of positioning pins pass through the through the plurality of through holes of the capacitor housing and the at least one PCBA and are connected to the housing.

The invention discloses a quick assembly and disassembly type modular telescopic supporting structure, and belongs to the field of general machinery design. The problems that a traditional supporting structure is low in disassembly and assembly efficiency, poor in adjusting precision and inconvenient to store and transport are solved. The structure comprises an outer cylinder, a self-locking telescopic structure, a magnetic suction quick-connection node structure and folding devices, the bottom end of the outer cylinder is movably connected with the magnetic suction quick-connection node structure, an inner cavity is connected with the self-locking telescopic structure in a clamped mode, and the folding devices are annularly fixed to the surface of the magnetic suction quick-connection node structure. The self-locking telescopic structure adopts a self-locking telescopic unit of a hexagonal nested sleeve, and is matched with an elastic ratchet bar, a slope clamping block and a compression spring, so that single-hand downward pressure stepless regulation is realized, locking is realized by virtue of friction and occlusion, the vertical deviation is small, and the bearing capacity is high; six permanent magnets are arranged at the bottom and an inner cavity of the magnetic attraction quick connection node, are distributed in an annular array mode and are quickly spliced by rotating and clamping the bottom end of an outer cylinder, electric power is not needed, and the bolt risk is avoided. And the folding storage mechanism supports quick disassembly of the supporting legs and is convenient to store and carry.

The invention relates to a grabbing manipulator positioning device and method for quickly assembling and disassembling a drill, and belongs to the technical field of coal mine machinery design. The device comprises a drill rod transfer device, a drill rod box, a grabbing manipulator, a mounting frame, a driving motor, a PLC (Programmable Logic Controller), an induction block, a proximity switch sensor and the like. The sensing block is aligned with the corresponding device or the drill rod groove in position, and the proximity switch sensor is arranged below the driving motor. During working, the PLC controls the driving amount of the driving motor according to the signal change of the proximity switch sensor. The grabbing manipulator is driven to move, sensor signals are monitored, the driving amount of the driving motor is controlled according to the number of times, speed reduction and precise stopping are conducted when a target is approached, and drilling rod grabbing or releasing is completed. By means of the mode, rapid and accurate positioning can be achieved, the positioning speed and precision are improved, the drilling and unloading efficiency is improved, the operation stability is improved by adopting an intelligent control strategy, and the system flexibly adapts to different drill rod groove numbers and is high in universality and expandability.

The invention relates to the field of machining cutting equipment, and discloses a machining cutting device for mechanical design and manufacture, which comprises a working table, a first movable table is movably mounted on one side of the front end of a vertical frame through a guide rail, a second movable table is arranged below the first movable table, and a rotating shaft is movably mounted in the inner middle of the second movable table; one end of the rotating shaft extends to the outside of the second movable table and is fixedly provided with a cutting blade, the two sides of the bottom end of the first movable table are connected to the top end of the second movable table through reset springs, a first driving bevel gear is fixedly installed on the outer diameter of the middle of the rotating shaft, and a short shaft is movably installed on the inner top of the second movable table. Different workpieces can be stably clamped, surface damage is avoided, precise cutting is achieved through the two-way spiral groove, the tool load is reduced through vibration cutting, the service life is prolonged, burrs are reduced, operation is easy and convenient, the structure is compact, and the machining quality and efficiency are remarkably improved.

The invention relates to the technical field of fluid machine design and artificial intelligence crossing, in particular to an optimization design method and system oriented to turbomachinery, a storage medium and a computer program. According to the method, a standardized data bus of a parameter layer, a configuration layer, a geometric layer and a result layer penetrates through an average line, parameterized geometry and multi-objective optimization are carried out, thermophysical property calibers are unified, and sample-level archiving and playback are achieved. Through LHS / Sobol sampling, Kriging proxy, NSGA-II and other algorithms, isentropic efficiency, pressure ratio and structure / noise indexes are collaboratively optimized under the condition that constraints of mass flow, minimum thickness, tip clearance and the like are met; the system is coupled with CFD / FEM through an adapter, and supports GUI and batch processing. Compared with the prior art, the design efficiency, the cross-module consistency and the result traceability are improved, and a manufacturable Pareto optimal blade scheme is obtained.

The utility model discloses an angle-adjustable mounting bracket, which belongs to the technical field of machining design, and comprises an equipment mounting bracket, the equipment mounting bracket comprises a bottom plate, side plates and reinforcing plates, the two sides of the bottom plate are fixedly connected with the side plates on the corresponding sides, the opposite sides of the two side plates are fixedly connected with the reinforcing plates on the corresponding sides, and the reinforcing plates are fixedly connected with the bottom plate. The bottoms of the two reinforcing plates are attached to the top of the bottom plate, three angle adjusting holes are formed in each side plate, and the adjustable range of the angle adjusting holes is plus or minus 15 degrees. According to the utility model, through the arrangement of the angle adjusting hole, the adjustment of the installation angle of an instrument or equipment is realized through the tightness of the fastening screw, so that the hole opening position of the installation hole has a fault-tolerant rate, and the trial and error frequency can be reduced, thereby enabling the field installation and debugging to be more convenient, improving the success rate of installation and debugging, and enabling the field operation to be more efficient.

The invention relates to the technical field of impeller design optimization, in particular to a fuel cell compressor impeller design optimization method, which comprises the following steps of: firstly constructing a parameter system of compressor impeller design, defining a design variable set and generating an impeller geometric model through parametric modeling; establishing a multi-objective function system, coordinating aerodynamic efficiency, structural strength and quality objective conflicts, and setting manufacturing and safety constraint conditions; then, key design variables are screened through global sensitivity analysis, and the space is optimized in a dimensionality reduction mode; a Pareto optimal solution set is generated by adopting a gradient enhanced NSGA-II algorithm, and convergence is accelerated in combination with gradient information; and finally, verifying the candidate solution through a multi-level verification system, and correcting the design space. According to the method, the design efficiency and performance of the fuel cell compressor impeller can be effectively improved, the method has wide application prospects in high-speed impeller mechanical design in the fields of aviation, automobiles and the like, and cross-platform multiplexing design criteria and empirical formula libraries are supported.

The application relates to the technical field of gear shaft welding, and particularly discloses a machining device for a planetary gear shaft, which comprises a base, a mechanical arm body, a welding gun, a material pushing structure, a material discharging structure and a butt joint structure. The base is convex, and the base has left and right ends and a front end. The mechanical arm body is fixedly arranged on the upper wall of the front end of the base. The welding gun is fixedly arranged on the mechanical arm body. The material pushing structure is fixedly arranged on the upper wall of the right end of the base. The material discharging structure is fixedly arranged on the upper wall of the base and close to the material pushing structure. The butt joint structure is fixedly arranged on the upper wall of the left end of the base. The machining device realizes efficient, flexible and automatic operation of gear shaft welding through innovative mechanical design and automatic technology, has the advantages of high adaptability, high efficiency and stability, cost reduction, easy maintenance, welding quality improvement and the like, and is suitable for various industries and customized production requirements.

The invention discloses a collaborative design method and device for a gear transmission system facing a marine environment, and relates to the field of mechanical design, and the method comprises the steps: obtaining the working depth of the gear transmission system in the marine environment, and calculating the environmental parameters of the ocean based on the depth and a first relation; state parameters of lubricating oil used in the gear transmission system are calculated according to the environment parameters and the second relation; selecting an initial gear material from a material performance parameter database according to the state parameters of the lubricating oil and the environmental parameters of the ocean; selecting an initial configuration in the configuration database according to the design requirement of the gear transmission system; and taking the initial gear material and the initial configuration as initial conditions, inputting the gear material and the configuration into a coupling performance prediction model to predict and obtain a performance index, and carrying out iterative solution on an objective function by adopting a multi-objective optimization algorithm under constraint conditions to obtain the optimal gear material and configuration. The method overcomes the limitation of a traditional separated design, and can capture a complex coupling relationship.

The utility model relates to the field of jacking moving and cutting machine design, in particular to a jacking moving and cutting machine convenient to adjust. Comprising a jacking plate, a jacking assembly connected with the jacking plate and used for driving the jacking plate to vertically ascend and descend, a mounting plate mounted on the jacking plate, and a lifting assembly mounted between the jacking plate and the mounting plate and used for driving the jacking plate to vertically ascend and descend. The horizontal moving assembly is used for driving the mounting plate to move in the first horizontal preset direction and the second horizontal preset direction relative to the jacking plate, and the feeding assembly is mounted on the mounting plate and used for bearing and conveying objects. According to the jacking moving and cutting machine convenient to adjust, through the arrangement of the jacking assembly and the horizontal moving assembly, the horizontal position of the feeding assembly can be adjusted while the feeding assembly ascends and descends, so that the feeding assembly is effectively aligned with a feeding port of the next working procedure, and the feeding efficiency of the next working procedure is improved. And therefore, the feeding stability of the feeding assembly is improved.

The present invention relates to the technical field of pre-prepared food production, and specifically to an automatic quantitative conveying device for seasonings for pre-prepared food production, comprising a discharge rack, wherein the top of the discharge rack is fixedly connected to a quantitative discharge mechanism, wherein the quantitative discharge mechanism comprises a quantitative discharge bottom rack, and the top of the quantitative discharge bottom rack is fixedly connected to a quantitative discharge component. The present invention realizes efficient, precise and automated operation of an automatic quantitative conveying device for seasonings for pre-prepared food production by providing a discharge rack and a quantitative discharge mechanism. Through precise mechanical design and linkage mechanism, the present invention ensures that each seasoning can be accurately received and conveyed to the pre-prepared food production equipment according to a preset amount. The device not only improves production efficiency, but also greatly reduces errors in manual operation, bringing significant technological innovation to the pre-prepared food production industry. In addition, through the ingenious design of triangular abutment plates and reverse triangular abutment plates, the present invention effectively solves the problem of seasoning residue.

The invention relates to the field of scroll compressor design, and discloses a full-meshing double-vortex-ring scroll compressor diffusion hole machining design method which comprises the steps of constructing an initial design domain, defining a multi-working-condition working point set and a fluid dynamic control equation determined by compressor operation parameters to construct a multi-working-condition analysis model, establishing a solid isotropic material penalty model, and designing a diffusion hole of a full-meshing double-vortex-ring scroll compressor according to the solid isotropic material penalty model. Multi-working-condition robustness topological optimization with the total pressure loss weighted sum under all the weighted working conditions as the target is executed, a discrete pseudo-density field is obtained, parameterized geometric reconstruction is conducted on the discrete pseudo-density field, and a diffuser hole parameterized geometric model controlled by parameter vectors is obtained. By introducing multi-working-condition robustness topological optimization and integrated dynamic machining constraint linkage re-optimization, remarkable robustness of aerodynamic performance of the diffusion hole in a wide working range is achieved, it is ensured that the diffusion hole meets the high-quality and high-efficiency numerical control machining requirements congenitally, and the design efficiency and manufacturing feasibility of the diffusion hole of the scroll compressor are greatly improved.

The invention relates to the field of fluid machinery design, in particular to a multi-assembly collaborative optimization combined type gas-liquid centrifugal pump. Comprising an impeller, a flow guide assembly and a volute. The impeller comprises a cover plate and a hub arranged on the cover plate, blades are installed on the hub and divided into a front impeller section and a rear impeller section in the radial direction, a segmented gap is formed between the front impeller section and the rear impeller section, a plurality of backflow holes are symmetrically formed in the cover plate, and the impeller is provided with an impeller inlet and an impeller outlet. A turbulent flow structure is arranged on the face, away from the blades, of the cover plate. In the design optimization of the centrifugal pump, the gas-liquid mixed transportation performance of the centrifugal pump can be effectively improved through a multi-assembly coupled composite structure; the sectional type blades are adopted, a three-dimensional rotary-cut flow field can be formed in the impeller through the synergistic effect of flow guide of sectional gaps and circulation of backflow holes, retained air mass can be efficiently broken, gas phase aggregation can be effectively restrained, and good conditions are created for gas-liquid mixed conveying.

The utility model relates to the technical field of blood station blood donation equipment, in particular to a blood bag plug breaking device which comprises a base and a plug breaking piece, the plug breaking piece is arranged on the base, a groove is formed in the base, and a blood bag plug breaking tee joint is arranged in the groove and penetrates through the plug breaking piece. The plug breaking-off piece automatically acts to conduct the plug breaking-off tee joint; according to the blood bag plug breaking-off device, automation and mechanical design are ingeniously combined, intelligent and automatic operation of a blood bag plug breaking-off tee joint (a multi-way valve) is achieved through the precise base platform and the high-efficiency plug breaking-off piece system, and the blood bag plug breaking-off device is high in practicability and high in practicability. The core of the device is that a steering engine (especially a high-precision stepping motor) is used as a power source to drive a specially-made rotating rocker arm to accurately act, the U-shaped design of the rocker arm perfectly fits a groove structure, and it is ensured that the blood bag tee joint can be accurately placed in the rocker arm and can be rapidly conducted under automatic control.

The utility model discloses a bulldozing structure and automatic printing equipment, and the bulldozing structure comprises a pedestal; the bulldozing assembly is connected to the base, the bulldozing assembly comprises a driving part and a bulldozing part, and the driving part is connected with the bulldozing part and drives the bulldozing part to move linearly; wherein the bulldozing part comprises a first bulldozing plate and a second bulldozing plate, the first bulldozing plate is used for pushing the thick side of a multi-page printed object, the second bulldozing plate is used for pushing the thin side of the multi-page printed object, the second bulldozing plate is installed on the first bulldozing plate in a floating mode in the linear driving direction of the driving part, and the bulldozing plate is driven by the driving part to push the multi-page printed object. The first pushing plate and the second pushing plate can drive the printing faces of the thin side and the thick side to be flush. Through the precise mechanical design, the printing faces of the thick side and the thin side are automatically adjusted to the same plane, neatness and flatness of documents are ensured, the working efficiency and the output quality of automatic printing equipment are remarkably improved, meanwhile, the operation process is simplified, and the use cost is reduced.

The present application discloses a material conveying mechanism for mounting, belonging to the technical field of mounting machine design. The material conveying mechanism for mounting includes a pusher device, a tray transfer device, a tray storage device, a carrying track, a hook material device, a return material device, a tray lifting device, and a feeding manipulator device. Through the coordinated work of the above-mentioned various components provided in the present application, the recycling of trays is realized. Moreover, the material conveying mechanism for mounting in the present application is compact, saves floor space, and is convenient for the recycling of mounting trays in the current equipment during the connection operation between different process equipment. The pushing and feeding are stable and reliable, and can quickly respond in case of a failure, reducing the damage to the trays or equipment.

A rapid detection and automatic release control system for cloth twining on a roller and a dyeing machine thereof relate to the technical field of dyeing machines, overcome the defects that a traditional dyeing machine lifting system is controlled by a frequency converter, and comprise a lifting roller, a servo motor and a servo driver, the servo motor is a non-band-type brake servo motor and is in transmission connection with the lifting roller through a synchronous belt; the servo driver is connected with and controls the speed of the servo motor, and the servo driver further comprises a brake resistor which enables a rotor of the servo motor to generate reverse electromagnetic brake torque and controls the free rotation speed of the rotor of the servo motor. The system can effectively reduce accidents that the fabric is tangled in the roller, reduce fabric wiping marks and improve the fabric quality, and after the system is introduced, a mechanical tangling detection device can be omitted, the machine design can be simplified, the machine cost can be effectively reduced, and the competitiveness is improved.

The invention relates to the technical field of steel pipe machining, in particular to a greenhouse steel pipe cutting device which comprises a cutting table, a steel pipe conveying table is fixedly connected to the rear side of the top of the cutting table, the cutting table comprises a cutting table body, and a positioning cutting assembly is arranged on the front side of the inner side of the cutting table body. By arranging the cutting table and the steel pipe conveying table, automatic control over the steel pipe cutting process is achieved, through a series of precise mechanical design and power transmission, it is ensured that each step from conveying, positioning, cutting to discharging of the steel pipe can be efficiently and accurately completed, and the whole cutting device improves the working efficiency and reduces the labor intensity of workers. In addition, sliding tracks of all the steel pipes are the same, cutting consistency and accuracy are guaranteed, various factors such as stability of the steel pipes and control over cutting precision in the steel pipe cutting process are fully considered in the design of the device, and it is guaranteed that the whole cutting process can be conducted smoothly.

The invention discloses a multifunctional safety type connecting bridge system for an LNG (liquefied natural gas) filling wharf boat, which comprises a connecting bridge body, the connecting bridge body comprises an LNG equipment cabin and a pedestrian guardrail, an LNG pipeline group is laid in the LNG equipment cabin, and two ends of the LNG pipeline group are respectively communicated with a fixed pipeline of the connecting wharf boat and are output / input outwards; the LNG equipment cabin comprises an anti-explosion partition plate and an anti-explosion sealing top plate, the anti-explosion partition plate and the anti-explosion sealing top plate jointly define a cabin space for laying of the LNG pipeline set, the pedestrian guardrail is fixedly connected to the top of the LNG equipment cabin, and the pedestrian guardrail and the LNG equipment cabin define a pedestrian path; the LNG equipment cabin is movably connected with the wharf boat and the wharf through universal hinge supports. Through mechanical design and flexible connection design of vertical space layering, physical isolation of a dangerous source and a personnel channel is achieved in a single bridge body, safety is improved, the overall design is miniaturized, and the device is more suitable for transformation projects with limited space and can adapt to wharf boat operation under various hydrological conditions.

The invention relates to a method for gear shaping a periodic structure, in particular a toothing on a workpiece, in which method the workpiece, continuously rotating about its axis of rotation, is brought into material-removing machining engagement with a toothed shaping tool which rotates about its axis of rotation in rolling contact with the workpiece rotation. After a working stroke, the shaping tool is lifted off from the workpiece in a lifting direction and, after a subsequent return stroke, the shaping tool in the lifted state is returned to the workpiece again for the next working stroke. In the return stroke, a deflection movement of the shaping tool away from the incoming flank of the workpiece and transversely to the lifting direction is superimposed on the rolling contact.

The utility model relates to the technical field of cloth inspecting machine design, and discloses a cloth inspecting machine convenient for adjusting the position of a control panel, which comprises a machine body, an unwinding roller, a winding roller, a cloth inspecting lamp box and the control panel, the connecting sleeve is provided with a connecting pipe, the upper end of the connecting pipe is connected with the control panel, the lower end of the connecting pipe is embedded in the connecting sleeve, the connecting sleeve is provided with an inner threaded sleeve communicated with the interior of the connecting sleeve, and the inner threaded sleeve is in threaded connection with a locking threaded shaft with the end used for abutting against the outer wall of the connecting pipe. An adjusting sleeve rotationally connected to the end of the connecting pipe is arranged on the upper side of the control panel, and a positioning piece used for positioning the angle of the control panel is arranged between the adjusting sleeve and the connecting pipe. The locking threaded shaft is connected into the inner threaded sleeve in a threaded mode so that the end of the locking threaded shaft can abut against the outer wall of the connecting pipe, at the moment, the circumferential rotating position of the connecting pipe can be positioned, and therefore the position of the control panel can be adjusted.

The invention discloses a shajiang black soil deep ploughing powdery organic fertilizer intelligent application all-in-one machine which comprises an outer box body connected with a three-point suspension system at the tail of a tractor, the outer box body is provided with a deep ploughing fertilization device and a supporting adjusting device, and the supporting adjusting device is connected with a control system. The deep ploughing and fertilizing device comprises a device frame, adjusting frames and a deep ploughing and fertilizing unit, the device frame is fixedly installed in the outer box body, the adjusting frames are arranged below the device frame in parallel at intervals, and the adjusting frames are connected with the device frame through supporting and adjusting devices; the deep ploughing and fertilizing unit comprises a fertilizer storage hopper, an outer fixing pipe, a discharging core pipe, a plowshare and a flexible transition pipe; the fertilizer storage hopper is fixedly mounted in the device frame; according to the intelligent application all-in-one machine for the deep ploughing powdery organic fertilizer for the shajiang black soil, precise fertilization and deep ploughing are achieved through intelligent control and mechanical design, the soil fertility and the crop yield are improved, meanwhile, the labor intensity is relieved, and agricultural sustainable development is promoted.

The utility model relates to the technical field of mechanical design and manufacturing, and discloses a lubricant retaining structure of a transmission shaft, which comprises a transmission shaft, a fixed disc, a sliding component, an auxiliary component and a lifting component, a sliding assembly is embedded in the transmission shaft, and a fixing disc is fixedly arranged on the transmission shaft. The sliding assembly is fixedly sleeved with an auxiliary assembly, and a lifting assembly is arranged in the auxiliary assembly. A positive and negative rotation motor in the lifting assembly drives a lead screw to drive an embedding ring and a retaining plate to move, the position height of the retaining plate is adjusted and controlled through transmission of the lead screw and the embedding ring, the storage space and the conveying amount of a lubricant in a retaining box are accurately adjusted, waste and defects are avoided, and the working efficiency is improved. A large-capacity storage space is provided through the retaining box of the auxiliary assembly, the retaining box is fixed to the outer side of the scarf joint cylinder, the supplementing frequency is reduced, scarf joint of the sliding assembly and the transmission shaft and the connecting mode of all the assemblies are simple and easy to operate, mounting and dismounting are convenient and fast, the mounting difficulty and time cost are reduced, and the assembling efficiency and maintainability are improved.