32 results about "Degree structure" patented technology

The invention relates to the technical field of multi-freedom-degree joints, in particular to a two-freedom-degree joint structure. The two-freedom-degree joint structure comprises a U-shaped fixed plate, a U-shaped connecting plate, a first-freedom-degree mechanism and a second-freedom-degree mechanism arranged on the U-shaped connecting plate, wherein the U-shaped fixed plate and the U-shaped connecting plate can rotate oppositely. A bottom plate of the U-shaped fixed plate and a bottom plate of the U-shaped connecting plate are arranged oppositely. A first side plate of the U-shaped connecting plate is connected to the inner side of a first side plate of the U-shaped fixed plate through the first-freedom-degree mechanism. A second side plate of the U-shaped connecting plate is rotationally connected to the inner side of a second side plate of the U-shaped fixed plate. The two-freedom-degree joint structure is simple in structure, reasonable in design, convenient to mount, use and control, high in universality and practicability, long in service life and convenient to use and popularize.

The invention discloses a self-lock connecting buckling part which comprises a first butt joint buckling part, a second butt joint buckling part and a self-lock part, wherein the first butt joint buckling part and the second butt joint buckling part are respectively fixed on two adjacent unit display screens, a butt joint pin of the first butt joint buckling part is inserted into a blind hole formed in the second butt joint buckling part, the butt joint buckling parts are buckled on butt joint connection parts, and the butt joint buckling parts and the butt joint connection parts are respectively provided with a gradual-fastening conical-degree structure and a gradual-fastening inclined-degree structure which are matched with each other. The self-lock part and the second butt joint buckling part are fixed on an identical unit display screen and are arranged on one side of the second butt joint buckling part. A rotating handle is locked by a self-lock tongue of the self-lock part. The self-lock connecting buckling part is capable of achieving precise positioning, butt-joint and self-locking of the unit display screens through structure design, and achieving the problems of positioning of the unit display screens and rapid installation. Meanwhile, the problems of the unit display screens such as unfairness, black screen clearance and black screen mosaics are also solved.

The invention provides a servo controller. To the servo controller in a double-free-degree structure, even a position detector in use has low resolution, fluctuation generated from an operation volume given from a forward feed controller to a feed back controller. And high precision control in high follow can be realized. An instruction generator converts an input position instruction from a resolution ratio of the controller to an inner position instruction having higher resolution ratio than the position detector. The feed forward controller utilizes a differential device (110), a filtering device (111) to generate a speed feed forward component (152) based on the inner position instruction. Based on the component, the differential device (110) and the filtering device (111) are utilized to generate a torque feed forward component. Since the resolution ratio of the inner position instruction is higher than the resolution ratio of the position detector, the fluctation generated in the feed forward components (152, 154) is less than those of utilizing the inner position instruction of the resolution ratio of the position detector.

The invention discloses a water control valve with a flow rate continuous control function. The water level control valve comprises a valve body, a valve core, a valve body cover, a floating ball connecting device and a floating ball, wherein the water body is provided with a water inlet cavity and a water outlet cavity; a water outlet hole is formed in the side wall of the water outlet cavity; areturning spring is arranged in one end, connected with the water inlet cavity, of the water outlet cavity; the valve core is arranged in the water inlet cavity; a step hole matched with the retuningspring is arranged at the water inlet end of the valve core; a balance hole is formed in a water outlet end surface; the valve body cover is provided with a centre hole and a floating ball rod seat; the floating ball connecting device comprises a valve core mandrill and a floating ball rod; one end of the valve core mandrill passes through the centre hole to contact the valve core; and the other end of the valve core is connected with the floating ball rod. The water level control valve with the flow rate continuous control function has the advantages that: the flow rate at a valve port can change continuously according to the water level in a water pool; the water inlet cavity and the water outlet cavity form a 45-degree structure, so that the dead weight of the floating ball and the floating ball rod overcomes the frictional force of the valve core; therefore, the action of the valve is more flexible and reliable.

The invention discloses a shock absorption control method of an aqueduct structure under the action of random loads. The method includes the steps that r controllers are added onto an n-freedom-degree structure, and a semi-active control system motion equation of the structure under input of random loads is established; a virtual stimulation method is adopted for simulating the random loads to introduce a state vector, and a state equation of the structure is determined; a performance objective function of a system is defined, a minimum value of the performance objective function is used, and feedback gain can be obtained; semi-active control is performed on virtual response through a magnetorheological damper, and therefore random shock of the aqueduct structure can be effectively controlled. According to the method, the semi-active control method is adopted for calculating the aqueduct structure under the action of the random loads, and random features of actual stimulation are represented with the virtual stimulation method; the method is simple and convenient to operate and solves the problem that the semi-automatic control system is influenced because output variables are disturbed randomly.

The embodiment of the invention relates to the technical field of smart urban construction and discloses a digital art landscape device-based pixel tiled display method and a server. The method comprises steps of acquiring a to-be-displayed image, searching pixels in a three-dimensional model corresponding to a digital art landscape device to acquire a target pixel splicing area adaptive to the to-be-displayed image, and sending the to-be-displayed image to the target pixel splicing area for displaying. The digital art landscape device has a plurality of 360-degree-structured display module layers alternatively distributed along the same vertical axis; each display module layer is divided into a plurality of different-structured independent display modules; and a certain gap is formed between any two adjacent different-structured structured independent display modules on the same display module layer. According to the embodiment, UV seamless connection can be realized; image displaying effect can be improved and excellent visual experience can be enhanced.

The invention discloses a steering engine driving type shoulder disarticulation type upper prosthesis, which is formed by connecting a shoulder joint, an upper arm, an elbow joint, a front arm, a wrist joint and a mechanical arm, wherein both the rotation action of the shoulder joint, the elbow joint and the front arm and the wrist joint adopt a steering engine mechanism, and the steering engine mechanism is a steering engine mechanism with position feedback, speed feedback and temperature feedback functions. Because the steering engine mechanism is adopted, light weight, convenience and flexibility are realized, the operation is convenient, the movement freedom degree number of the shoulder disarticulation type upper prosthesis can be increased, the robot technology is conveniently transplanted to the upper prosthesis technology, particularly, the shoulder part of the shoulder disarticulation type upper prosthesis is provided with two freedom degree structures with humanoid functions, and in addition, the size is compact, so the appearance of the upper prosthesis is natural, and the use requirement of wearers can be preferably met.

The invention relates to a pulse detector with high interference resistance. The pulse detector with high interference resistance comprises two sensors in an inverted series connection mode, wherein a certain interval is maintained between the two sensors by utilizing a high-electricity and vibration insulation degree structure; the induction surface of one main sensor is provided with multiple probes which are arranged at preset intervals; the multiple probes transmit the pulse signals which are independently detected to the induction surface of the main sensor; the pulse signals received bythe induction surface of the main sensor are superposed by the signals detected by each probe; the pulse signals induced by the other auxiliary sensor in the inverted series connection mode are relatively weak because of the insulation action of the high-electricity and vibration insulation degree structure; and other interference signals induced by the two sensors with the same physical structure have the same strength and the opposite directions, thereby obtaining the pulse signals with basically counteracted interference, high signal-to-noise ratio, stability, reliability and insensitive positions after superposition. A reliable 24-hour pulse real-time monitoring system which can be actually applied in daily life can be established by utilizing the pulse detector with high interferenceresistance.

In a conventional pipeline blower, a movable side rack of a frame is a starting rack approximately 180-degree structure, and the bottoms of the movable side racks are pivoted to a free end of a fixed side rack and arranged on an outer periphery of the fixed side rack; a start/stop half-circle structure has disadvantages that the movable side rack is closed in front of another free end of the fixed side rack, i.e., part of a sealing pad of an opening portion of an upper portion of a frame annular rack is displaced in a cross side of the periphery direction; the frame has two openings and is formed by the fixed side rack and the movable side racks connecting/disconnecting the fixed side rack; in the frame, a fan arranged in the frame and a blower driving a motor of the fan, at least part of left-right dual-door forms the movable side racks; the bottom end of each movable side rack is pivoted to two free ends of the fixed side rack, wherein a first connecting point (pivot portion) and a second connecting point (pivot portion) are fixed outside the periphery of the fixed side rack, thus protecting sealing pads of the movable side racks.

The invention discloses radiating fins of a crossflow cooling tower, which mainly comprises a main body and is characterized in that: the main body is provided with concavo-convex hemispherical holes which are in staggered form; and two sides of the main body are provided with water collecting strips which adopt concavo-convex groove structure, and convex grooves are provided with convex conical bores. The radiating fins have the characteristics that: because the radiating fins adopt the inclined structure design, under the condition of the same area, the cooling circulating water has the advantages of largest heat exchange area, good radiating effect, fullest heat exchange, and the like; and because two sides of the radiating fins are provided with the water collecting strips, and the water collecting strips have 45 degree structure and good water collecting effect, and are directly designed on the radiating fins, so that the space occupied in the cooling tower is saved, the integral structure design of the cooling tower has the advantages of having small occupied area and good water collecting effect, saving the water resource and the like, and has popularization value.

The invention relates to the technical field of robots, and discloses a robot arm structure. The robot arm structure comprises a shoulder, a first arm, a second arm, a third arm, a first driving mechanism, a second driving mechanism, a third driving mechanism and a fourth driving mechanism; the shoulder, the first arm, the second arm and the third arm are sequentially and rotationally connected, and the first driving mechanism, the second driving mechanism, the third driving mechanism and the fourth driving mechanism drive the shoulder, the first arm, the second arm and the third arm to rotate; and four freedom degrees are included, wherein the shoulder is used for being rotationally connected to the robot body so as to achieve front-and-back swing of the overall arm structure, the first arm can rotate around the shoulder to swing to the inner and outer sides of a robot, the second arm rotates around the first arm to achieve lifting or placing of the arm structure, and the third arm rotates around the second arm so as to enable the third arm to rotate to the left and right sides. The robot arm structure is of a four-freedom-degree structure, the structure and the wine bottle grabbing structure are installed on the robot together, a series of wine pouring work can be completed, and the wine pouring efficiency is high.

The invention discloses a paper card pothook folding mechanism used in a socks packing machine. The mechanism comprises a rack, a paper card conveying device, a pothook device and a paper card foldingdevice, wherein the paper card conveying device comprises a paper card conveying hole, a paper card placement pothook hole, a paper card suction translation mechanism and a paper card placement fixing device, wherein the paper card conveying hole, the paper card placement pothook hole and the paper card suction translation mechanism are arranged on a bearing surface, and the paper card placementfixing device is arranged under the paper card conveying hole; the pothook device comprises a vibrating disk, a pothook rod cooperatively connected with the vibrating disk and a pothook taking turnover structure arranged under the paper card conveying hole; and the paper card folding device comprises a paper card folding 90-degree structure and a paper card folding 180-degree structure. The papercard pothook folding mechanism used in the socks packing machine has the advantages the automatic transportation, hooking, getting hooked and paper card folding processes can be completed, the whole processes are operated conveniently and quickly and can be completed only needing a common operating worker, the cooperation among parts is coordinating and reliable, and the stability and accuracy canachieve an expected goal.

The invention discloses an inlet pressurizing type two-dimensional duplex piston pump comprising a pump body. The pump body is provided with an oil suction opening and an oil discharge opening. A pumpunit is arranged in the pump body and comprises two cylinder blocks fixed into the pump body. The two cylinder blocks are arranged in the left-right direction. Pistons are both arranged in the two cylinder blocks, and the two pistons are in mutual linkage. The center axis of each cylinder block coincides with the center axis of the corresponding piston. The two ends of each piston are both provided with moving components, wherein the moving components drive the piston to axially move so as to cause the volume of a work cavity to change. The piston motion driving directions of the two moving components at the two ends of each piston are opposite. Each piston, the corresponding cylinder block and the moving components on the two sides of the piston constitute one half part of the duplex structure of the piston pump, the part close to a front end cover is the upper half part of the duplex structure of the piston pump, and the part close to a back end cover is the lower half part of the duplex structure of the piston pump. According to the inlet pressurizing type two-dimensional duplex piston pump, the double-freedom-degree structure of rotation and sliding of the pistons is used forreplacing an oil distributing disk structure of a traditional circumferential plunger pump, and continuous oil suction and discharge functions are achieved; besides, the duplex mode is adopted, if thepistons rotate for one circle, reciprocating motion is conducted four times, oil suction and oil discharge are each conducted eight times, and the number of times of oil suction and the number of times of oil discharge are each four larger than those of a monoblock piston pump.