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31 results about "Woodpecker" patented technology

Woodpeckers are part of the family Picidae, a group of near-passerine birds that also consist of piculets, wrynecks, and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar, and the extreme polar regions. Most species live in forests or woodland habitats, although a few species are known that live in treeless areas, such as rocky hillsides and deserts, and the Gila woodpecker specialises in exploiting cacti.

Bionic air spring system

The invention discloses a bionic air spring system which comprises a passive vibration reduction component, a variable-rigidity variable-damping component, an anti-torsion vibration component, an aperture regulating mechanism and a bearing platform. The passive vibration reduction component is mounted on an environmental foundation; the variable-rigidity variable-damping component is arranged on the upper portion of the passive vibration reduction component; the anti-torsion vibration component is disposed on the periphery of the variable-rigidity variable-damping component; the lower end of the anti-torsion vibration component is fixed into the passive vibration reduction component, the bearing platform is sleeved at the upper end of the anti-torsion vibration component, and the upper end of the variable-rigidity variable-damping component is in contact with the lower surface of the bearing platform. By regulating a lead-screw transmission mechanism, aperture openness of damping holes is regulated, flow rate and velocity of fluid between a main air chamber and an auxiliary chamber are changed, and the rigidity value and the damping value of the air spring system are quantitative and adjustable. Meanwhile, three aerostatic bearings are uniformly distributed along the axis of the bionic air spring system to form the anti-torsion vibration component to simulate the three-point support attitude of both claws and the tail of a woodpecker, so that engineering adaptability and vibration reduction efficiency of bionic air springs are improved.
Owner:SHANDONG UNIV

Efficient driven vibration insulation and reduction platform imitating physiological structure of head of woodpecker

The invention discloses an efficient driven vibration insulation and reduction platform imitating the physiological structure of the head of a woodpecker. The efficient driven vibration insulation and reduction platform comprises a driven vibration-reduction assembly, a variable-stiffness various-damping air spring assembly, a combination bearing platform and an outer frame, the driven vibration-reduction assembly comprises a hard rubber pad and a cutting type viscoelastic damper, the variable-stiffness various-damping air spring assembly comprises two or more than two double-air-chamber air springs which are symmetrically distributed along a machine base, the combination bearing platform comprises a top board, a bottom board and side boards, wherein the top board, the bottom board and the side boards are made of steel boards, insulation layers are arranged among the top board, the bottom board and the side boards, and the outer frame is symmetrically arranged on two sides of the machine base. The efficient driven vibration insulation and reduction platform imitating the physiological structure of the head of the woodpecker has no acting part and is low in energy consumption. Compared with a vibration-reduction platform under driving control, the efficient driven vibration insulation and reduction platform can greatly lower manufacturing cost and operation cost, save energy, and be economical and practical.
Owner:SHANDONG UNIV

Assembler for lock cylinder and lock cylinder surface cover of automobile

An assembler for a lock cylinder and a lock cylinder surface cover of an automobile comprises an upper template, a lower template and a workpiece base arranged on the lower template, and is structurally characterized in that the workpiece base is arranged on a slide block capable of moving forward and backward under the action of a transmission mechanism; two sides of the slide block are respectively provided with an elastic riveting pressing plate, and free ends of two elastic riveting pressing plates are exactly meshed with edges of a workpiece when the two elastic riveting pressing plates move to bottom dead centers; pressing columns fixed on the upper template are arranged over plate bodies of the two elastic riveting pressing plates respectively. After the workpiece base capable of moving forward and backward is arranged on the lower template, an area for placement of the workpiece is away from a riveting pressing area, and thus potential safety hazards are eliminated. The two riveting pressing plates of a woodpecker pecking mode are arranged on the two sides of the workpiece base of the slide block and operate effectively and circularly under the cooperative action of the pressing columns, drive rods, reset springs and the like, and thus production efficiency is improved.
Owner:浙江焕发智能技术有限公司

Woodpecker articulation point positioning method based on motion image sequence

The invention provides a woodpecker articulation point positioning method based on a motion image sequence, and the method comprises the following steps: firstly setting a marking point at an approximate position of a woodpecker articulation point, and collecting a video image sequence of the pecking behavior of a woodpecker; carrying out the preprocessing of each effective image frame, and obtaining the coordinates of each marked articulation point; carrying out the optimization of the positions of the articulation points through an optimization algorithm, and setting supposed articulation points corresponding to the numbers of marked articulation points, wherein the distance between each two adjacent supposed articulation points is equal to the mean value of the distances between two adjacent marked articulation points; building a distance summation function for the supposed articulation point and the marked articulation point with the same number in the same frame, enabling the distance summation function to serve as an optimization target function, and carrying out the optimal solving. obtaining the motion data according to the coordinates of the optimal articulation points in all effective frames. The method can locate the articulation points of the woodpecker more precisely in the motion image sequence of the pecking motion of the woodpecker, is simple in calculation, is higher in precision, and is easy for popularization.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Preparation method of bionic impact-resistant multilayer composite gradient material based on amorphous alloy

The invention relates to a preparation method of a bionic impact-resistant multilayer composite gradient material based on amorphous alloy, and belongs to the technical field of 3D printing materials.The preparation method is characterized in that biological materials such as woodpecker beaks and oyster shells with porous gradient characteristics and multi-layer composite characteristics are selected as bionic models to establish a CAD model, amorphous alloy powder is adopted as a raw material, a selective laser melting forming technology is adopted to prepare the bionic impact-resistant multi-layer composite gradient material, and different layers of materials are printed through a 3D printing method, so that the bionic multi-layer composite gradient material with high impact load resistance is obtained. By comparing and analyzing the bionic impact-resistant multilayer composite gradient material, the alloy material and the pure amorphous alloy material, the bionic impact-resistant multilayer composite gradient material is found to simulate the porous gradient characteristic and the multilayer composite characteristic of a bionic sample by printing an amorphous alloy layer and analloy layer amorphous alloy layer with different porosities, and therefore, the impact resistance is good.
Owner:JILIN UNIV

Conjugated cam and planetary gear train combined-type pot-grown rice seedling transplanting mechanism

A conjugated cam and planetary gear train combined-type pot-grown rice seedling transplanting mechanism belongs to agricultural machinery and is formed by assembling a uniform / non-uniform speed driving planetary gear train mechanism, a conjugated cam swinging mechanism and a transplanting arm, wherein power drives the uniform / non-uniform speed driving planetary gear train mechanism to rotate through a central shaft, the uniform / non-uniform speed driving planetary gear train mechanism provides power for the conjugated cam swinging mechanism while pulling the transplanting arm to move, and the conjugated cam swinging mechanism enables a housing of the transplanting arm to rotate relative to planetary gears, so that the movement of the transplanting arm becomes the composition of pulling movement and relative rotation of the uniform / non-uniform speed driving planetary gear train mechanism and sharp points of seedling clamping pieces on the transplanting arm form a movement trajectory in a woodpecker manner, to complete the transplantation of pot-grown rice seedlings. The conjugated cam and planetary gear train combined-type pot-grown rice seedling transplanting mechanism has the characteristics of good operation quality, strong adaptability, simple structure, low cost, reliable working, small vibration and high efficiency.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Self-supporting opticalcable bird prevention method

The invention relates to a self-supporting optical cable bird prevention method and a special shield structure, and belongs to the technical field of electric power communication optical cables. The method comprises the technical scheme that a twisted wire bundle (2) is a twisted-pair cable formed by coiling a plurality of twisted wires, is arranged at two sides of a hanging point, and matched with an ADSS (all-dielectric self-supporting) optical cable (1); a shield (3) is a semi-arc shield made of a polyethylene material with the smooth surface, the length of the shield is matched with that of the twisted wire bundle on the ADSS optical cable; on the tail end of the twisted wire bundle on the ADSS optical cable 10cm of the twisted wires are rolled and forms a 90-degree angle with the twisted wire bundle, so that a bird is prevented from standing on and edge of the twisted wire bundle or pecking the optical cable; two holes (4) are formed respectively in two ends of the shield, and two twisted wires respectively penetrates through the two holes in the ends, and the shield is fixed on the twisted wire bundle by the two twisted wires; and the twisted wires at one end, in which the twisted wire bundle is connected with an armor clamp, are fixed on the optical cable, and the shield is fixed at the end through the two twisted wires, so that the shield is prevented from rotating, two ends of the twisted wires can be protected, and the communication failure caused by the woodpecker pecked optical cable can be prevented.
Owner:STATE GRID CORP OF CHINA +1

Woodpecker type bottle preform box filler and bottle preform box filling method thereof

InactiveCN111717632AIncrease production demandMeet production needsConveyor partsBottleWoodpecker
The invention discloses a woodpecker type bottle preform box filler. The bottle preform box filler comprises a bottle preform box, a PLC control device, a bottle preform conveying device, a hydraulictransmission device and an ultrasonic distance measuring sensor; the bottle preform conveying device is in a woodpecker shape and is controlled by the PLC control device and is used for conveying thebottle preforms to the bottle preform box; the bottle preform conveying device comprises a horizontal part, a slope part and a part shaped like a woodpecker head, the bottom end of the slope part is hinged to the horizontal part, and the top end of the slope part is fixedly connected with the part shaped like a woodpecker head; the hydraulic transmission device is controlled by the PLC control device and used for supporting and adjusting the inclination angle of the slope part; and the ultrasonic distance measuring sensor is fixed to the bottom end of the part shaped like a woodpecker head andused for measuring the distance between the ultrasonic distance measuring sensor and the uppermost layer of bottle preform in the bottle preform box and transmitting the vertical distance value to the PLC control device. The invention further discloses a bottle preform box filling method of the woodpecker type bottle preform box filler. The bottle preform box filler has the advantages of being stable in lifting, high in positioning precision and capable of reducing the bottle preform damage risk.
Owner:SHANGHAI ZIJIANG ENTERPRISE GRP CO LTD +1

Preparation method of biomimetic impact-resistant multilayer composite gradient material based on amorphous alloy

The invention relates to a preparation method of a bionic impact-resistant multilayer composite gradient material based on an amorphous alloy, and belongs to the technical field of 3D printing materials. By selecting woodpecker beak, oyster shell and other biomaterials with porous gradient characteristics and multi-layer composite characteristics as bionic models to establish a CAD model, using amorphous alloy powder as raw materials, and using selective laser melting forming technology to prepare the bionic model The impact-resistant multilayer composite gradient material is printed with different layers of materials by 3D printing, so as to obtain a biomimetic multilayer composite gradient material with resistance to high impact loads. Through the comparative analysis of the biomimetic impact-resistant multilayer composite gradient material, the alloy material and the pure amorphous alloy material, it is found that the biomimetic impact-resistant multilayer composite gradient material can print the amorphous alloy layer and the alloy layer with different porosity. The crystalline alloy layer simulates the porous gradient properties and multi-layer composite properties of the biomimetic sample, resulting in good impact resistance.
Owner:JILIN UNIV

Anti-impact structure optimized design method

InactiveCN110074503AImprove impact resistanceIncreased impact protection efficiencyHelmetsHelmet coversEngineeringCancellous bone
The invention discloses an anti-impact structure optimized design method, which is based on a woodpecker head anti-impact principle. The method is characterized in that by using the structure characteristic of a woodpecker that the cancellous bone in the skull is similar to the plate shape and the characteristic of nonuniform distribution of the cancellous bone in the skull, the structure microscopic parameter design and the protection requirements of different positions of protection equipment are combined, the structure design and distribution is formed in the whole protection equipment; ina position with great impact, the mass center position of the protection equipment is regulated through controlling the structure microscopic parameter, increasing the structure intensity and improving the anti-impact performance and deformation resistance capability via the structure arrangement and distribution. The impact effect is ensured; meanwhile, the material utilization rate is improved;the mass of protection equipment is reduced; the stability of the protection equipment is improved. The method can be applied to the helmet design of an athlete and a pilot and the design of other protection equipment. The method does not relate to the concrete material of the anti-impact structure and the manufacturing process, and does not relates to the concrete mode of the structure distribution.
Owner:BEIHANG UNIV

A woodpecker joint location method based on motion image sequence

The invention provides a woodpecker articulation point positioning method based on a motion image sequence, and the method comprises the following steps: firstly setting a marking point at an approximate position of a woodpecker articulation point, and collecting a video image sequence of the pecking behavior of a woodpecker; carrying out the preprocessing of each effective image frame, and obtaining the coordinates of each marked articulation point; carrying out the optimization of the positions of the articulation points through an optimization algorithm, and setting supposed articulation points corresponding to the numbers of marked articulation points, wherein the distance between each two adjacent supposed articulation points is equal to the mean value of the distances between two adjacent marked articulation points; building a distance summation function for the supposed articulation point and the marked articulation point with the same number in the same frame, enabling the distance summation function to serve as an optimization target function, and carrying out the optimal solving. obtaining the motion data according to the coordinates of the optimal articulation points in all effective frames. The method can locate the articulation points of the woodpecker more precisely in the motion image sequence of the pecking motion of the woodpecker, is simple in calculation, is higher in precision, and is easy for popularization.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Frog-woodpecker combined silicon nitride double-cylinder bionic compressor

The invention relates to a frog-woodpecker combined silicon nitride double-cylinder bionic compressor. The frog-woodpecker combined silicon nitride double-cylinder bionic compressor comprises a shell, as well as an air inlet through pipe, an air inlet structure, an exhaust structure, a driving structure and an air cylinder which are positioned in a cavity of the shell; the shell is frog-shaped with a large tail part, a streamline middle part and a small head part; the air inlet through pipe is longitudinally located in the center of the head part, the air inlet structure and the driving structure are located in the middle part, and the cylinder is cylindrical and transversely arranged at the tail part; the shell is structurally composed of an inner-layer structure and an outer-layer structure, the outer layer is made of a stainless steel material, and the inner layer is made of a silicon nitride material; the cavity of the shell is filled with an elastic material; the driving structure comprises a driving motor, a disc rotor, a first stand column, a second stand column, a cylindrical reciprocating sliding roller, an L-shaped baffle, a baffle and a movable partition plate; and the movable partition plate is located in the air cylinder and divides the working area of the air cylinder into a left half area and a right half area. According to the frog-woodpecker combined silicon nitride double-cylinder bionic compressor of the invention, a bionics bionic biological principle is applied, and a double-cylinder design is carried out on the basis of the shape characteristics of the frog and the head structure of the woodpecker, so that the frog-woodpecker combined silicon nitride double-cylinder bionic compressor is mute and efficient, and can reduce energy consumption and improve performance.
Owner:JINGDEZHEN CERAMIC INSTITUTE

Assembler for lock cylinder and lock cylinder surface cover of automobile

An assembler for a lock cylinder and a lock cylinder surface cover of an automobile comprises an upper template, a lower template and a workpiece base arranged on the lower template, and is structurally characterized in that the workpiece base is arranged on a slide block capable of moving forward and backward under the action of a transmission mechanism; two sides of the slide block are respectively provided with an elastic riveting pressing plate, and free ends of two elastic riveting pressing plates are exactly meshed with edges of a workpiece when the two elastic riveting pressing plates move to bottom dead centers; pressing columns fixed on the upper template are arranged over plate bodies of the two elastic riveting pressing plates respectively. After the workpiece base capable of moving forward and backward is arranged on the lower template, an area for placement of the workpiece is away from a riveting pressing area, and thus potential safety hazards are eliminated. The two riveting pressing plates of a woodpecker pecking mode are arranged on the two sides of the workpiece base of the slide block and operate effectively and circularly under the cooperative action of the pressing columns, drive rods, reset springs and the like, and thus production efficiency is improved.
Owner:浙江焕发智能技术有限公司

Bionic air spring system

The invention discloses a bionic air spring system which comprises a passive vibration reduction component, a variable-rigidity variable-damping component, an anti-torsion vibration component, an aperture regulating mechanism and a bearing platform. The passive vibration reduction component is mounted on an environmental foundation; the variable-rigidity variable-damping component is arranged on the upper portion of the passive vibration reduction component; the anti-torsion vibration component is disposed on the periphery of the variable-rigidity variable-damping component; the lower end of the anti-torsion vibration component is fixed into the passive vibration reduction component, the bearing platform is sleeved at the upper end of the anti-torsion vibration component, and the upper end of the variable-rigidity variable-damping component is in contact with the lower surface of the bearing platform. By regulating a lead-screw transmission mechanism, aperture openness of damping holes is regulated, flow rate and velocity of fluid between a main air chamber and an auxiliary chamber are changed, and the rigidity value and the damping value of the air spring system are quantitative and adjustable. Meanwhile, three aerostatic bearings are uniformly distributed along the axis of the bionic air spring system to form the anti-torsion vibration component to simulate the three-point support attitude of both claws and the tail of a woodpecker, so that engineering adaptability and vibration reduction efficiency of bionic air springs are improved.
Owner:SHANDONG UNIV
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