41results about How to "Simple form of exercise" patented technology

The invention discloses a three-degree-of-freedom parallel mechanism provided with arc-shaped sliding pairs. The three-degree-of-freedom parallel mechanism provided with the arc-shaped sliding pairs comprises a base, a movable platform, a restraining rod and three identical moving branched chains. The movable platform and the base are connected through the restraining rod. The movable platform has freedom degrees in three rotation directions relative to the restraining rod. The three moving branched chains are arranged symmetrically with the restraining rod as the center. Each moving branched chain comprises a lead screw assembly and one arc-shaped sliding pair. The lead screw assemblies are arranged on the base, and the arc-shaped sliding pairs are hinged to the movable platform. Each arc-shaped sliding pair comprises a lower arc-shaped connecting rod and an upper arc-shaped connecting rod, wherein the lower arc-shaped connecting rod and the upper arc-shaped connecting rod are connected in a nested mode, the lower arc-shaped connecting rod is driven by the corresponding lead screw assembly to move linearly in the axis direction of the lead screw assembly and to rotate around the axis of the lead screw assembly, the upper arc-shaped connecting rod is made to move along the arc-shaped track of the lower arc-shaped connecting rod accordingly, and one end of the upper arc-shaped connecting rod is hinged to the movable platform.

The invention relates to a combing machine cylinder structure with built-in nipper assemblies. The combing machine cylinder structure comprises a cylinder shaft, a cylinder, cylinder end caps, the nipper assemblies and a cylinder card wire device, wherein the cylinder is movably sleeved on the cylinder shaft; the cylinder end caps are respectively fixed at two ends of the cylinder shaft; 1-4 nipper assemblies and the cylinder card wire device are peripherally distributed on the periphery of the cylinder uniformly; and each nipper assembly comprises a movable nipper, a fixed nipper, a nipper stretching and retracting mechanism, a nipper pressurizing mechanism and a nipper driving mechanism, the movable nipper is mounted on the nipper stretching and retracting mechanism and is connected with the nipper driving mechanism through the nipper pressurizing mechanism, and the fixed nipper is fixed on the nipper stretching and retracting mechanism. Combing and piecing modes finished in a narrow triangular region in the traditional combing process actions is changed into a mode that combing and piecing are simultaneously carried out on different portions of the surface of the periphery of the cylinder. After the cylinder rotates by a circle, a plurality of combing processes can be finished, and the combining efficiency of a combing machine is greatly improved. The combing machine cylinder structure is simple in motion mode, low in noise and suitable for popularization and application.

The invention relates to a surgical robot containing an arc-shaped moving pair. The surgical robot is characterized by comprising a fixed platform, a linear guide rail, a bottom driving motor, a movable sliding block, a lower arc-shaped connecting rod, an upper arc-shaped connecting rod and a tail-end executing device, wherein the linear guide rail is fixedly arranged on the fixed platform; the movable sliding block can move along the axial direction of the linear guide rail, the bottom driving motor is fixedly arranged on the movable sliding block, and an output shaft of the bottom driving motor is matched with the lower end of the lower arc-shaped connecting rod to drive the lower arc-shaped connecting rod to rotate around the output shaft of the bottom driving motor; the lower end of the upper arc-shaped connecting rod is connected with the lower arc-shaped connecting rod, and the upper end of the upper arc-shaped connecting rod is connected with the tail-end executing device; a long groove is arranged on the upper surface of the lower arc-shaped connecting rod, a middle-section driving motor is arranged at the upper end of the lower arc-shaped connecting rod, and an output shaft of the middle-section driving motor is connected with a gear; and a bulge is arranged at the lower end of the upper arc-shaped connecting rod and is matched with the long groove on the upper arc-shaped connecting rod, and the upper arc-shaped connecting rod is concentric to the lower arc-shaped connecting rod.

The invention relates to a three-branched-chain six-freedom-degree robot drive mechanism which is mainly and technically characterized in that three branched chains identical in structure are arranged between a movable platform and a fixed platform, a fixed platform motor is arranged on a fixed platform motor support, and the fixed platform motor, second connection rods, first connection rods and the movable platform are sequentially connected; sliding guide rails are evenly distributed on the fixed platform in the circumferential direction, a guide rail top motor is arranged at the top end of each sliding guide rail, a screw rod is arranged in each sliding guide rail through a bearing, sliding blocks are arranged on the sliding guide rails in a sliding mode, and the middle portions of the sliding blocks are meshed with the screw rods in a spiral mode; connection sleeves are arranged on the outer sides of the sliding blocks and connected with the first connection rods in a sliding mode. The three-branched-chain six-freedom-degree robot drive mechanism is reasonable in design, has the advantages of being simple and reliable in structure, stable in movement of the movable platform, and the like, has good drive performance, robustness and bearing capacity, and can be applied to the fields of detection of machine tools and robots according to different needs.

The invention particularly relates to a mechanical limiting mechanism and method for increasing the movement stroke, and the mechanical limiting mechanism and method are wide in application range. Anarc-faced bumping block and a movement bumping block move under driving of a movement component, blocking bumping blocks are all in a descending state originally, and the arc-faced bumping block is firstly in contact with a slide rod of a first fixed bumping block component, so that the blocking bumping block of the first fixed bumping block component rises up; then, the arc-faced bumping block isin contact with a slide rod of a second fixed bumping block component, and the blocking bumping block of the second fixed bumping block component rises up; the movement bumping block and the blockingbumping block of the second fixed bumping block component are limited, the movement component retreats from a limiting area after conducting reverse movement to make contact with the slide rods of the two fixed bumping block components, so that the two blocking bumping blocks restore to be in the descending state, and limiting is achieved by limiting the movement of the movement component throughascending and descending of the blocking bumping blocks; and the movement range of the movement component can be intervened mutually without being influenced, and the application range is wide.

The invention provides a noodle cooking device. The noodle cooking device comprises a noodle basket, a cooling water pool, a hot water pool, a conveying assembly and a power mechanism, wherein the conveying assembly is connected with the noodle basket and can drive the noodle basket to move between the cooling water pool and the hot water pool; the power mechanism is in driving connection with theconveying assembly, and the noodle basket is located in the hot water pool when noodles are cooked; when noodles are treated with cooling water, the noodle basket moves to the cooling water pool fromthe hot water pool under driving of the conveying assembly; when noodles needs to be heated again, the noodle basket moves to the hot water pool from the cooling water pool, and circulation is carried out through the mode till noodle cooking is completed. By means of the noodle cooking device, the problem that a noodle cooking device in the prior art is inconveniently used is solved.

The invention provides a noodle cooker which comprises a noodle strainer, a hot water layer, an exchange layer and a cool water layer. A first gate normally closed is arranged between the hot water layer and the exchange layer; a second gate normally closed is arranged between the cool water layer and the exchange layer. During cooking, the noodle strainer stays in the hot water layer and noodle in the strainer is heated; during draining, the first gate is opened, the noodle strainer is moved to the exchange layer and then the first gate is closed; further, the noodle strainer is moved to thecool water layer after the second gate is opened so that noodle cooling is achieved; when people need to cook noodle again, people can move the noodle strainer to the hot water layer again, and repeatthe cycle until finishing cooking. With the noodle cooker, inconvenience in use of noodle cookers in the prior art is overcome.

The invention discloses an IPMC (Ionic Polymer Metal Composite) driven simulated dragonfly wing flapping robot and relates to a simulated wing flapping robot. The IPMC driven simulated dragonfly wing flapping robot is provided with wing veins, wing membranes, wing IPMC driving parts, wings, a robot body, circuit controllers, copper sheet electrodes, robot body IPMC driving parts and fixing shafts; the wing veins are arranged on the wings; the two wing IPMC driving parts are arranged on the wings; deformation of the wings is achieved due to change of the wing shapes; the two robot body IPMC driving parts are arranged at the bottom of the robot body; one ends of the robot body IPMC driving parts are fixed on the robot body and the other ends are arranged on wing root portions of the wings; the wings are hinged to the robot body which drives flapping of the wings; the copper sheet electrodes enable the circuit controllers and the wing IPMC driving parts or the circuit controllers and the robot body IPMC driving parts to be connected through leads; the circuit controllers, the robot body IPMC driving parts and the fixing shafts are arranged on a robot frame; fixing shaft holes in the wings are hinged to the fixing shafts to achieve rotation between the wings and the robot body.

The invention belongs to the technical field of flexible robots, and provides a permanent magnet variable-stiffness flexible joint for a robot, wherein the permanent magnet variable-stiffness flexiblejoint is capable of simulating nolinear variable-stiffness muscle features of a bionic joint. A permanent magnet variable-stiffness mechanism is adopted as a stiffness adjusting component, a rope isused as force and motion transmission component, the stiffness changes along with change of air gaps between permanent magnets, by means of actions of a motor, a rope winch and a guide pulley, force and position decoupling of ropes at the two sides of a manipulator, so that only joint rotating angle instead of joint stiffness is changed, and namely the joint position is adjusted under the equal-stiffness condition; the effect of just changing joint stiffness instead of the joint position can be achieved, and work under corresponding stiffness condition is achieved according to different working conditions. The permanent magnet variable-stiffness flexible joint for the robot is concise in motion form, convenient to manufacture and easy to operate.

The technology belongs to the field of pressure vessel inspection devices, and in particular relates to a high-temperature gas-cooled reactor pressure vessel inspection device. The inspection device 1 is located between the outer cylinder wall 2 of the pressure vessel and the cabin cylinder wall 3. The inspection device 1 includes a circular guide rail 4, a track running trolley 5, a lifting rod 6, a two-axis scanner 7, a positioning pin pointing mechanism 8, and a circular guide rail. 4 is a whole ring spliced ​​by a plurality of arc guide rails; the track running trolley 5 is located on the circular guide rail 4 and can move along the track; a lifting rod 6 is installed on the track running trolley 5, and the lower end of the lifting rod 6 carries a positioning pin to point to the mechanism 8. It can be controlled and fixed with the positioning pin at the bottom of the pressure vessel. The lower end of the lifting rod 6 of the present invention carries a positioning pin pointing mechanism 8, which can be controlled and fixed with the positioning pin at the bottom of the pressure vessel.