143results about How to "Improve workability" patented technology

The utility model provides a self-propelled sunflower harvester, which belongs to the technical field of agricultural machinery and structurally comprises a self-propelled vehicle machine and a frame, a header is arranged at the front end of the frame, and a primary conveyor and a secondary conveyor are communicated with the rear of the header. The rear part of the secondary conveyor is communicated with a thresher; a screening mechanism is arranged below the thresher, and the screening mechanism is composed of a first-stage vibrating screen which is composed of a swinging fish scale screen and rushes backwards, and a second-stage vibrating screen which is composed of a swinging stepped dense mesh screen and rushes forwards; the screening mechanism communicates with the conveying and lifting mechanism. The conveying and lifting mechanism comprises a transverse auger and a bucket elevator. And the conveying and lifting mechanism is connected with the grain collecting hopper. The sunflower seed and sunflower disc separating device can achieve good separation of sunflower seeds and sunflower discs, the sunflower seeds and the sunflower discs are respectively conveyed in two paths during threshing, and simple and efficient threshing separation can be achieved. The threshing process is automatically completed, manpower and material resources are saved, and good harvesting and harvesting effects are achieved.

This invention discloses a landing buffer device for unmanned aerial vehicles (UAVs), relating to the field of aviation equipment technology. By integrating the roller body and the sliding plate as two grounding structures onto the landing gear, the device can quickly switch operating modes according to ground conditions through the linkage of the piston cylinder and piston rod. On flat ground, the roller is used first to reduce gliding resistance, while on muddy or slippery ground, the sliding plate is used for grounding, effectively preventing roller jamming and enhancing all-terrain adaptability and landing safety. Simultaneously, the mechanical buffer composed of a second and third spring, combined with the hydraulic damping buffer composed of buffer components, forms a highly efficient double-layer energy-absorbing buffer structure, which to a certain extent alleviates the damage to the aircraft and equipment caused by landing impact, thus improving the landing safety of the UAV.

The invention belongs to the technical field of robot teleoperation and haptic interaction, and provides a multi-mode force feedback control method and system for nuclear facility robot operation, and the method comprises the steps: collecting the state information of a master arm and a slave arm in real time, and dynamically scheduling a haptic calculation strategy according to a task state; a fast estimation strategy is enabled in the fast transit mode. Further, real environment interaction force is obtained based on dynamic model compensation and net interaction force extraction; combining the dynamically selected multi-mode force feedback parameters, and synthesizing and outputting a touch instruction to the main arm. Meanwhile, admittance correction and feed-forward compensation are carried out on a slave arm motion instruction through net interaction force and dynamic internal force, synchronous output is carried out after safety optimization, and the slave arm is controlled to move. The problems of poor task adaptability, force sense distortion and insufficient safety in nuclear facility teleoperation are solved, and intelligent, high-fidelity and safe robot teleoperation is achieved.

Provided is a chocolate-like food which has excellent workability in a normal temperature range and does not bleed out. According to the present invention, it is found that a chocolate-like food product which has excellent workability in a normal temperature range and does not bleed out can be provided by satisfying all of the following conditions (a) to (e): (a) the total amount of saturated fatty acids having 12 and 14 carbon atoms in the constituent fatty acids in the oil content is 20-48% by mass, and (b) the total amount of saturated fatty acids having 12 and 14 carbon atoms in the constituent fatty acids in the oil content is 20-48% by mass; (b) the total amount of unsaturated fatty acids having 18 carbon atoms in the constituent fatty acids in the oil content is 37-59% by mass, (c) the moisture content is less than 3% by mass, (d) the oil content is 35-70% by mass, and (e) 0.5-2% by mass of a glycerin fatty acid ester containing 40% by mass or more of behenic acid. Also provided are: a food or drink in which the chocolate-like food is combined; and a method for improving the storage suitability and work suitability of the chocolate-like food.

This invention discloses a capture device for unmanned underwater vehicles (UUVs), comprising a submersible fixed by a mounting frame. The mounting frame is symmetrically mounted with a grasping mechanism for capturing the UUV via a base. The grasping mechanism includes a drive arm driven by the base, with the other end of the drive arm rotatably connected to four corner support frames. The four corner support frames are driven by connecting arms to contact claws for gripping. A groove is provided on the side of the drive arm near the base, and a servo motor is mounted on the base. The servo motor is connected to a gear at one end of a limiting link, transmitting power through the other end of the limiting link to the groove on the drive arm to achieve the movement of the grasping mechanism. This invention also discloses a method for launching and recovering UUVs in conjunction with the above-mentioned launch and recovery device. This invention simplifies precise hook docking operations in high sea states, reduces the dependence of UUVs on computing power during launch and recovery, and improves the automation level of the launch and recovery process.

The present application provides an optical unit for housing a sample when measuring the concentration of the sample by absorbance photometry, and can improve workability and measurement accuracy compared with the past. An optical unit (2) is an optical unit for housing a sample used in a concentration measuring device that measures the concentration of a sample by absorbance photometry, and the optical unit (2) includes a housing portion (21) having a long side direction and a short side direction in a horizontal cross section, and a protruding portion (24) extending outward along the short side direction from a side surface of the housing portion (21) along the long side direction.

The utility model belongs to the field of mining drilling machines, and relates to a full-section drilling machine with a drilling rod conveying system, which comprises a moving platform, a drilling rod box, an auxiliary manipulator, a posture adjusting device, a drilling rod transporter, a main manipulator and a rack, and the posture adjusting device comprises a revolving platform, a lifting sleeve, a transporter gyrator and a dip angle gyrator. The rotating platform serves as a carrier of the posture adjusting device and is rotationally connected to the movable platform, the lifting sleeve is vertically installed on the rotating platform in a lifting mode, the transporter gyrator and the dip angle gyrator are both installed on the lifting sleeve, and the transporter gyrator and the dip angle gyrator are installed on the lifting sleeve. The dip angle gyrator and the transporter gyrator are both located on the side, away from the drill rod box, of the lifting sleeve. The drill rod transporter is arranged at the top of the transporter gyrator, and the dip angle of the drill rod transporter is adjusted through the transporter gyrator; the machine frame is arranged on the side, away from the lifting sleeve, of the dip angle gyrator in a side hanging mode, and the main mechanical arm is installed on the machine frame and rotates along with the machine frame.

This application relates to the field of road engineering materials technology, and discloses a method for preparing modified phosphogypsum base material for road engineering, comprising the following steps: mixing aged phosphogypsum with ferrous sulfate heptahydrate, sodium fluorosilicate, and manganese sulfate monohydrate, utilizing the inherent moisture of the phosphogypsum to dissolve the salts and form an acidic slurry; adding heat-curing dry powder and high-speed shearing, utilizing the heat of hydration to raise the temperature to 65℃-85℃ to create a high-temperature strong alkaline environment, initiating manganese catalytic oxidation and slag thermal etching; subsequently, high-pressure injection of a rapid cooling conditioning liquid, utilizing the latent heat of vaporization to rapidly cool to below 45℃ to complete rapid cooling quenching and slow setting locking; unloading and aging to obtain the modified phosphogypsum base material. This invention, through the release of chemical energy by quicklime hydration to construct a high-temperature strong alkaline reaction field, achieves deep mineralization of impurities and reconstruction of the cementitious material network, significantly improving the water stability and mechanical properties of the base material.

A harvester has a storage portion (6) which is supported to a body frame (12) in a state changeable between a closed state (A1) in which the storage portion is located on the body frame (12) and can store a harvested crop and an open state in which the storage portion is extended outward in a lateral direction from the body frame (12). The harvester has a support portion (37) provided to a lower portion (6a, 6b) of the storage portion (6), a guide portion (36) which supports the storage portion (6) by placing the support portion (37) and can guide the support portion (37) from the closed state (A1) to the open state side, and a lifting mechanism (45) which can perform a lifting operation of the support portion (37) from the guide portion (36).

The utility model relates to a ground rail line adaptive to a mold automatic robot, which comprises a ground rail, and an adjusting component is mounted below the ground rail; the adjusting assembly comprises an adjusting disc, a sleeve is fixedly connected into the adjusting disc, a rotating cylinder is installed in the sleeve, the lower end of the rotating cylinder is in butt joint with a first gear, a first motor is installed in the adjusting disc, the first motor is in butt joint with a first lead screw, the first lead screw is meshed with the first gear, and the upper end of the rotating cylinder is in butt joint with a rotating piece. A second motor is installed in the adjusting disc, a second lead screw is in butt joint with the second motor, the second lead screw is meshed with the second gear, a driving bevel gear and a driven bevel gear are in butt joint with the upper end of the second gear, and a transmission shaft penetrates through the middle of the driven bevel gear. A hydraulic rod is fixed to the transmission shaft, and a connecting plate is in butt joint with the top end of the hydraulic rod and fixedly connected with the ground rail. The adjusting assembly can adjust the height and the inclination angle of the ground rail.

This invention relates to the field of concrete admixtures, specifically to an anti-mud polycarboxylate superplasticizer, its preparation method, and its application. The anti-mud polycarboxylate superplasticizer provided by this invention comprises, by weight, the following raw materials: 100-180 parts of unsaturated polyether monomer, 5-10 parts of unsaturated carboxylic acid monomer, 2-5 parts of air-entraining monomer, 5-10 parts of anti-mud monomer, 10-20 parts of oxidant, 0.4-0.6 parts of reducing agent, 5-7 parts of chain transfer agent, and 150-300 parts of water; the air-entraining monomer and the anti-mud monomer have specific structures. The simultaneous introduction of specific anti-mud monomers and air-entraining monomers into the anti-mud polycarboxylate superplasticizer of this invention not only reduces clay adsorption but also provides better dispersibility and anti-mud effect at lower dosages, increasing the overall workability of concrete and improving concrete performance.

This invention discloses a wind-resistant reinforced intelligent utility pole, which relates to the field of power construction technology. A connecting base is positioned on the upper side of the utility pole and remains fixed thereto. The lighting fixture is fixedly connected to an external support rod, which in turn is fixedly connected to a mounting frame. The mounting frame is inserted from the top of the utility pole, allowing it to mate snugly with the connecting base. A threaded connection exists between the mounting frame and the connecting base, improving installation efficiency and supporting the lighting mechanism. A rotating device is positioned on an annular groove. When the utility pole encounters strong winds, the wind force acts on the rotating device, causing it to rotate and reducing the frontal wind force and wind load. Furthermore, when the utility pole is installed on the adjustment device, the pole aligns the external plate with the U-shaped plate. The external plate and the U-shaped plate are then plugged in and threaded together, enhancing the fixation effect between components.

The utility model discloses an agricultural machinery soil turning device, including buffer connecting device, through buffer connecting device connection traction machinery, frame, the frame passes buffer connecting device fixed mounting, the frame has the mouth of installation, the frame is fixedly installed with the support board in the one end away from the mouth of installation, through support board with the frame is equipped with the wheel, the pivot, the pivot rotatory mounting is in the mouth of installation, the pivot is fixed with the rotating roller, a plurality of soil turning hooks are installed to the outer wall department of rotating roller, when the wheel is used to the land surface, and the soil turning hook is driven into the soil after the rotating roller, drive arrangement, drive arrangement passes through support board device, and drive arrangement is equipped with transmission unit between cooperation with the pivot, and this device can buffer when having greater impact force.

This invention belongs to the technical field of power equipment operation and maintenance, power distribution line construction, and high-altitude operation machinery. A pole-mounted transformer replacement device based on a truck-mounted crane is characterized by comprising a main frame and support system, a translational load-bearing system, a chain drive system, and a vertical lifting and centering system. The main frame and support system includes a main load-bearing frame, stabilizing legs, and lifting lugs. The translational load-bearing system includes a translational load-bearing platform and a linear guide rail slider assembly. The chain drive system mainly consists of a geared motor, a drive gear, a driven gear, a short transmission chain, a drive sprocket shaft, a bearing support seat, a long transmission chain, and a reducer mounting support. The vertical lifting and centering system includes a centering mechanism, a vertical lifting mechanism, and a vertical lifting support plate. The centering mechanism includes a horizontal drive motor, a horizontal push rod mechanism, and a guide bracket. This device can be transported by truck, deployed quickly, and is suitable for operation in confined and electrified environments.

The utility model relates to a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stubble cleaning and crushing monomer belongs to agricultural machinery, and the utility model discloses a height and angle adjustable three-dimensional horizontal stub

This invention provides a distributed electro-hydraulic hybrid drive hydraulic system for a loader and its control method. It includes a power supply system, a steering drive subsystem, an electro-hydraulic hybrid working subsystem, and a vehicle controller. The steering drive subsystem uses a pure electric cylinder drive and is decoupled from the working system. The electro-hydraulic hybrid working subsystem includes large and small flow motor pump sets, a distribution valve group, working cylinders, and an accumulator. The vehicle controller identifies the working condition based on the collected signals, controlling the small pump to operate independently under low flow conditions, and switching to the large pump or coordinating oil supply under high flow conditions. Pressure energy is recovered through the accumulator, and potential energy is converted into electrical energy using a motor pump with four-quadrant working capability. This application can eliminate steering throttling losses, optimize power matching under all working conditions, achieve multiple composite energy recovery, and significantly improve the overall machine energy efficiency and handling linearity.

The utility model relates to the technical field of desertification control equipment, and discloses a folding straw square automatic planting device which comprises a material box assembly, a folding guide planting assembly, a ditching assembly, a soil covering assembly, a movement assembly and a machine body. The material box assembly adopts a quick-release design and supports quick replacement; the folding guide planting assembly realizes accurate folding and accurate furrow entering of wheat straws through a V-shaped mold and a brush conveying belt; the ditching assembly is provided with a height-adjustable moldboard plow; the soil covering assembly compacts soil through a press wheel; and the movement assembly realizes full-process automation through a PLC (Programmable Logic Controller). The problems that traditional manual laying is low in efficiency and the grass grid structure is loose are solved, the wind prevention and sand fixation effects are remarkably improved, and the device is suitable for desertification control.

The power board of the power unit constituting the charging and discharging device for secondary batteries can be easily, quickly and safely installed, removed and assembled, greatly improving the operability and safety of maintenance. A secondary battery charging and discharging device includes a power unit (1) disposed above a battery container (50) housing multiple batteries (60) to be inspected. The secondary battery charging and discharging device can charge and discharge the batteries (60) using the power unit (1). The power unit (1) has the following structure: a plurality of power boards (20) that contact each battery (60) in the battery container (50) from above and perform a predetermined charge and discharge; a power housing (10) that can suspend the plurality of power boards (20) in a predetermined position corresponding to each battery (60) in the battery container (50); and a guide structure (30) that detachably guides the plurality of power boards (20) in a suspended state within the power housing (10). Through the guide structure (30), the plurality of power boards (20) are detachably suspended within the power housing (10) and held in a suspended state without falling off.

The utility model discloses a windproof drip irrigation tape, including the body of a belt, the inside of body of a belt is equipped with inner lining, and the both sides of body of a belt are equipped with the edge tape, and the top of edge tape is equipped with a plurality of through -holes, and the top of through -hole is provided with the needle cap, and the bottom of needle cap is provided with the protruding block, and the inner wall of through -hole is provided with the plastic needle, and the outer wall of plastic needle is provided with a plurality of barbs, and the top of plastic needle is equipped with the recess, the utility model discloses through setting up the through -hole in the both sides edge tape of drip irrigation tape, cooperate with the plastic needle of needle cap use, can be inserted into the soil of plastic needle through the through -hole and realize steady fixed, further promoted the fixed intensity, effectively resist the impact of strong wind, fundamentally solved the traditional drip irrigation tape easy because of wind force and displace, twist, lead to the problem of watering, topdressing and pest control uneven, avoided the soil covering on drip irrigation tape influence drip path, guaranteed the smoothness of drip irrigation process, eliminated the drip irrigation tape partial pressure damage risk caused by covering soil simultaneously.

The present invention provides a secondary barrier for liquefied gas storage tank, characterized by comprising: a blocking layer containing (a) metal or (b) one or more polymers selected from the group consisting of polyethylene, polyethylene terephthalate, polyvinyl alcohol, ethylene-vinyl alcohol copolymer, and nylon; and a fiber layer laminated on both sides of the blocking layer, containing one or more fibers selected from the group consisting of glass fiber, polyethylene fiber, poly-p-phenylene benzobisoxazole fiber (PBO), aramid fiber, and carbon fiber, the fiber layer being fixed by an adhesive layer suitable for surface properties.

The application provides a cutting platform control method and device, a controller and a harvester, and relates to the technical field of harvester control. The method comprises the following steps: in the case that a first signal from a handrail box controller is received, a first execution instruction with a default instruction coefficient is sent to a cutting platform ground pressure electromagnetic valve, so that the cutting platform ground pressure electromagnetic valve adjusts the ground pressure of the cutting platform of the harvester by running the first execution instruction; if the cutting platform ground pressure sensed by a cutting platform ground pressure sensor is within a user-set pressure threshold interval and a second signal from the handrail box controller is received after the cutting platform ground pressure electromagnetic valve runs the first execution instruction, a second execution instruction is sent to a bridge height electromagnetic valve, so that the bridge height electromagnetic valve adjusts the middle height of the cutting platform of the harvester by running the second execution instruction, thereby realizing accurate control of the cutting platform and improving the actual operation effect of the harvester.

The application discloses a path planning method, a path planning device, a self-moving device and a computer storage medium. The method is applied to the self-moving device, the self-moving device comprises a first front wheel and a second front wheel, the first front wheel and the second front wheel are arranged in a non-parallel manner, and the method comprises the following steps: when it is detected that the self-moving device is located on a slope, the direction of the slope is determined according to the current posture of the self-moving device; the first angle between the direction of the slope and the first front wheel and the second angle between the direction of the slope and the second front wheel are determined; the target motion direction of the self-moving device is determined according to the first angle and the second angle; the slope moving path is planned according to the target motion direction, and the self-moving device is controlled to move along the slope moving path. The method can improve the climbing ability of the self-moving device, and further improve the operation coverage and operation effect.

The utility model discloses a kind of calcination waste gas multistage spray purification treatment devices, including body mechanism and being set to the top of body mechanism, by the drive of water flow when body mechanism operation, rotating scraper demister surface, reduce dust adhesion amount, guarantee the scraping mechanism of component use effect, the scraping mechanism includes the cavity column fixedly connected in the inside of demister, water flow in top end side pipe has stronger impact force, and via pipe frame drive impeller inside its rotation, drive the synchronous rotation of the shaft of impeller top, make side piece cooperate screw rod and the base of its one side by adapter column, and drive moving piece to rotate outside demister, the surface of scraper demister is scraped, the falling speed of liquid mixed with dust on the surface of demister is accelerated, while reducing the adhesion amount of dust on the surface of demister, to effectively improve the operation effect of demister in long time use process, guarantee the cleanliness of gas discharged by body mechanism.

The utility model relates to the field of blow molding auxiliary equipment, in particular to a hydraulic clamping and stretching device for an extrusion blow molding hollow machine. The cylinder body is fixedly connected with the mounting base, an oil cavity is formed in the wall of the cylinder body, oil pipe joints are fixedly connected to the positions, located at two ports of the oil cavity, of the outer wall of the cylinder body, and cavities are formed in the inner walls of the two sides, close to the two ends, of the interior of the oil cavity; the end cover is detachably arranged at one end of the cylinder body; and the quick disassembly mechanism is arranged on the outer wall of the cylinder body and can quickly disassemble and replace the extrusion piece. According to the elastic collet chuck, the second ring frame can slide along the sliding groove by twisting the third ring frame, so that one end of the oil cavity is exposed, limiting on the inclined block is relieved, the inclined block and the extrusion block are pulled out conveniently and rapidly to be replaced, and compared with a traditional elastic collet chuck which needs to dismantle numerous peripheral components during replacement, the elastic collet chuck has the advantages that operation steps are greatly reduced, replacement time is saved, and replacement efficiency is improved. The equipment maintenance cost and the downtime are reduced, and the production efficiency is improved.

This utility model relates to the field of forklift technology, and in particular to a forklift with an automatic leveling function. It includes a forklift body and further includes: a lifting component, which includes a vertical frame fixedly connected to the front end of the forklift body; a first hydraulic cylinder is mounted on the inner wall of the vertical frame; a fixed block is fixedly connected to the end of the telescopic shaft of the first hydraulic cylinder; a lifting plate is fixedly connected to the side wall of the fixed block; and a leveling component, which includes an adjusting plate. The adjusting plate is rotatably connected to the front wall of the lifting plate via a rotating shaft; a fourth hydraulic cylinder is symmetrically arranged on the side wall of the lifting plate; the telescopic end of the fourth hydraulic cylinder is hinged to the side wall of the adjusting plate; and the telescopic end of the fourth hydraulic cylinder drives the adjusting plate to rotate along the rotating shaft. By incorporating the lifting component, leveling component, fork component, and extension component, the technical problem of goods easily tipping over when operating on slopes with existing forklifts is effectively solved.

The invention discloses a preparation method of a composite admixture for a high-calcium fly ash-based geopolymer. According to the additive, natural tannic acid serves as a raw material, an ATRP initiator is grafted through esterification reaction to prepare a brominated tannic acid macroinitiator (TA-Br), then the brominated tannic acid macroinitiator serves as a core, acrylic acid and polyethylene glycol methyl ether methacrylate are catalyzed to be subjected to ATRP graft copolymerization in a water-alcohol mixed system, and the core-shell structure additive with the tannic acid as the core and polycarboxylic acid as the shell is formed. According to the admixture, the retarding effect of tannic acid and the water reducing effect of polycarboxylic acid are integrated, and the problem that polycarboxylic acid in a high-calcium system is prone to failure is solved. Wherein the tannic acid core firmly adsorbs Ca < 2 + > and delays hydration, and the polycarboxylic acid shell provides high-density dispersion force, so that the problems of high water demand and short coagulation time of the high-calcium fly ash geopolymer are solved synergistically. The additive is green and environment-friendly in raw material, excellent in performance and suitable for a strong-base high-calcium geopolymer environment.

The utility model discloses a mill roll bearing mechanism with dustproof structure relates to mill roll bearing field, including the outer ring, the inner wall movable joint of outer ring has the rolling body. The utility model discloses through setting up the outer ring, the silicone grease layer, the heat dissipation fin and the bolt, through the silicone grease layer of outer ring bonding, can closely fit in the surface of outer ring and heat dissipation fin, fills the tiny gap and uneven place between both, makes the contact between heat dissipation fin and outer ring more closely and evenly, passes through heat dissipation fin again, and heat dissipation fin can significantly increase the heat dissipation area, and the heat emission speed from outer ring to the surrounding air is accelerated, and the working temperature of bearing is effectively reduced, prevents the bearing performance decline, lubrication failure and other problems because of overheating, can also shield the rolling body place simultaneously, can effectively block the dust of outside and other foreign matters to enter the bearing inside, avoids these foreign matters to cause the abrasion of rolling body, thereby guarantees the normal operation and service life of rolling body.

This invention relates to a three-stage screening stone sorting machine with a shaftless drum screen, comprising: a main frame; an excavation mechanism; a primary conveying mechanism, which is inclined at the front and upward at the rear, and connected to the rear end of the excavation mechanism; a secondary conveying mechanism, which is also inclined at the front and upward at the rear, with its front end located below the rear end of the primary conveying mechanism; a tertiary drum screen mechanism, which includes a shaftless drum assembly and a drum drive mechanism, and is connected to the rear end of the secondary conveying mechanism; and a stone collection mechanism, which includes a stone collection box, and is connected to the rear end of the tertiary drum screen mechanism. This three-stage screening stone sorting machine with a shaftless drum screen of the present invention effectively improves soil-stone separation by employing a two-vibration-one-rotation screening method, reduces the labor intensity of manual stone sorting, and can complete the functions of excavation, picking, conveying, collecting, and unloading of farmland stones in one operation, exhibiting high operating efficiency and good operating results.

The utility model discloses a steering drive axle suitable for mountain harvest machinery and belongs to the field of harvest machinery. Comprising a central transmission assembly, an integral axle housing, an axle housing assembly, a knuckle brake hub assembly, a planet carrier assembly, a tie rod assembly, an oil cylinder assembly and a universal transmission shaft assembly. The whole drive axle is of a symmetrical structure, and the central transmission assembly is fixedly connected to the middle position of the whole axle housing. The two ends of the integral axle housing are connected with the two axle housing assemblies, and the axle housing assemblies are connected with the two knuckle brake hub assemblies respectively; the two steering knuckle brake hub assemblies are connected with the two planet carrier assemblies, one ends of the two tie rod assemblies are fixedly connected to the oil cylinder assembly, and the other ends of the two tie rod assemblies are connected with the two steering knuckle brake hub assemblies respectively. And the two universal transmission shaft assemblies are arranged in the central transmission assembly. The whole machine is light in weight, convenient for mountain land transition farming, high in trafficability due to the adoption of a high ground clearance structural design, and capable of meeting complex working conditions and working capacity in the mountain land farming process.

The invention discloses an adjustable blade layout device. The adjustable blade layout device comprises two symmetrical wallboards, a cutter shaft, an axial displacement mechanism, a cutter holder unit, a mounting disc and blades. The two ends of the cutter shaft are rotationally connected to the two wallboards through bearings. The axial displacement mechanisms are arranged on the cutter shaft at equal intervals; the tool apron unit is adjustably mounted on the tool shaft through the axial displacement mechanism; the installation disc is installed on the tool apron unit through a deflection mechanism, and the installation disc is driven by the deflection mechanism to swing left and right in the axis direction of the tool shaft. And a plurality of blades are mounted on the mounting disc in the circumferential direction. The axial distance between the tool apron unit and the blade on the tool shaft can be conveniently adjusted through the axial displacement mechanism; the axial deflection angle of the blade can be adjusted through the deflection mechanism. A user can quickly configure the optimal blade layout according to the requirements of soil conditions, crop residues, tillage depth and the like, and the adaptability and the operation effect of the rotary cultivator are remarkably improved.