Abstract: The present disclosure discloses a flexible mechanical arm and a robot. The flexible mechanical arm includes an arm joint, a flexible rotary module (2) and an end execution mechanism (3) which are connected with each other. The flexible rotary module (2) is driven by fluid, and includes a first end plate (23), a powered pusher plate (222), a first folding unit (21), a nut (221), and a lead screw (223) in threaded connection with the nut (221), wherein the first folding unit (21) is driven by fluid to be extended or compressed to push the powered pusher plate (222) to translate in an axial direction of the lead screw (223). The flexible mechanical arm can be deformed under drive of the fluid, thus causing no damage to surrounding objects or persons, and capable of being applied to special environments such as electric fields, magnetic fields, rays, etc.

Abstract: A soft muscle, a transmission structure, a robot, a manufacturing method for the soft muscle, and a design method for a mechanical arm. The soft muscle comprises two end surfaces, a flexible side wall and a driving source interface. The flexible side wall and the end surfaces enclose a chamber. The flexible side wall comprises a multi-layer stacked structure having uniformly-distributed strain. The stacked structure is provided with folding surfaces. Crease surfaces are formed at joint portions of the folding surfaces of adjacent layers. Combination of the shape, the thickness and the stacking mode of strain units enables strain to be uniformly distributed on the folding surfaces rather than concentrating at crease portions, and, during the compression or extension process of the stacked structure, the invasion angle ? changes, and the creases only move along the axis along with the crease surfaces and do not deform.

Abstract: The present disclosure discloses a flexible mechanical arm and a robot. The flexible mechanical arm includes an arm joint, a flexible rotary module (2) and an end execution mechanism (3) which are connected with each other. The flexible rotary module (2) is driven by fluid, and includes a first end plate (23), a powered pusher plate (222), a first folding unit (21), a nut (221), and a lead screw (223) in threaded connection with the nut (221), wherein the first folding unit (21) is driven by fluid to be extended or compressed to push the powered pusher plate (222) to translate in an axial direction of the lead screw (223). The flexible mechanical arm can be deformed under drive of the fluid, thus causing no damage to surrounding objects or persons, and capable of being applied to special environments such as electric fields, magnetic fields, rays, etc.

Abstract: A damping mechanism providing resistance for an exercise system, and the exercise system. The damping mechanism (100) comprises a first processor, a fixing portion (1), a movable portion (2) and a flow regulating valve (3). The fixing portion (1) is connected to a first exercise component (200). The movable portion (2) is connected to a second exercise component (300). The movable portion (2) divides the chamber of the fixing portion (1) into at least two fluid chambers (110) in communication with each other. When the first exercise component (200) and the second exercise component (300) move relative to each other, the movable portion (2) is driven to move to push the fluid to flow between the two fluid chambers (110). The damping mechanism uses the fluid resistance between the adjustable fluid chambers communicated with each other as a source of resistance, and is convenient and safe.

Abstract: A light-weight, high-strength, and high-elasticity titanium alloy and an implementation method thereof. The titanium alloy is specifically Ti-8Al-2V-1Cr-0.75Zr, wherein the content of Al is 7.0% to 9.5%, the content of V is 0.5% to 4.0%, the content of Cr is 0.5% to 3.5%, the content of Zr is 0.5% to 2.0%, and the balance is Ti. The titanium alloy is obtained by vacuum arc remelting(VAR), after mold pressing through the adoption of sponge titanium, vanadium, chromium, aluminum zirconium pure, pure aluminum, aluminum vanadium alloy mixed consumable electrode. The titanium alloy is simple in preparation processing steps, low in processing cost, easy in production, and is applicable to various application fields with a requirement for a low-density and high-strength titanium alloy.

Abstract: A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.

Abstract: A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.