8 results about "Relative stability" patented technology

The utility model discloses a packing carton with a buffer structure, which relates to the technical field of packing cartons and comprises a carton body and a bottom layer, the bottom layer comprises a buffer layer, a support layer, a foam layer, a bearing layer and a group of damping strips, a group of protective corners for keeping stability are fixedly connected in the carton body, the foam layer is mainly used for buffering and damping, and the bearing layer is used for bearing the buffer layer. The shock-absorbing cushion has good elasticity and compressibility, can quickly deform and absorb a large amount of impact energy when an article is impacted, effectively protects the article in the cushion from being collided and damaged, the honeycomb structure can absorb energy through tiny deformation of the honeycomb structure and compression of air, the buffering and shock-absorbing effects are achieved, and triangles for protecting corners have stability; compared with the prior art, the structure can be kept relatively stable and not prone to deformation when being subjected to external force, meanwhile, the bevel edges of the triangle can guide impact force to be dispersed in the specific direction, energy is absorbed through extrusion and deformation of materials, and the corner of an object is well protected.

The invention discloses full-automatic aluminum profile precision polishing and grinding integrated equipment, and relates to the technical field of intelligent manufacturing equipment industries, the full-automatic aluminum profile precision polishing and grinding integrated equipment comprises a machine base, a machine frame is mounted in the machine base, supporting rods are symmetrically and slidably mounted at the top end of the machine frame, a frame is mounted at the top ends of the supporting rods, and vertical cylinders are symmetrically mounted at the bottom end of the frame; according to the aluminum profile polishing and grinding device, integrated automatic polishing and grinding of aluminum profiles can be achieved, the relative stability of gravity can be effectively utilized, a double correction mechanism is formed, automatic attaching correction of a grinding head and a polishing head can be achieved, the attaching force can be adjusted in a self-adaptive mode, the polishing effect is good, and the polishing effect is good. And the attaching balance and stability in the polishing and grinding work process are improved, more effective polishing and grinding work is achieved, the position of the sectional material can be automatically limited and corrected, and the situation that the grinding effect is affected due to dislocation of the sectional material in the pushing and grinding processes is avoided.

The utility model provides a belt pulley and a belt transmission system, and relates to the field of belt pulley structures. According to the belt pulley, the assembly part is arranged in the fixed disc, the outer side part of the assembly part is provided with the external thread, and the movable disc is provided with the internal thread corresponding to the external thread, namely, the movable disc can be sleeved on the outer side part of the assembly part of the fixed disc, so that accurate adjustment of the movable disc can be realized through threaded connection, and the assembly part of the fixed disc can be conveniently assembled. The relative stability between the fixed disc and the movable disc can be ensured; furthermore, a first fixing part and a second fixing part are respectively arranged at the fixed disc and the movable disc, and relative movement of the movable disc and the fixed disc can be limited through corresponding locking assemblies, so that the movable disc is locked. Therefore, the stability of the movable disc during moving and after moving is effectively improved, the coplanarity of the belt pulley and the tensioning wheel is guaranteed, the abrasion probability of the belt is effectively reduced, and the service life of the belt is prolonged.

The invention provides Sb < 3 + > / Ta < 5 + > co-doped bismuth titanate-based piezoelectric ceramic. The chemical formula of the piezoelectric ceramic is Bi4Ti < 3-2x > (SbTa) xO12, wherein x is not less than 0.01 and not more than 0.03. According to the Sb < 3 + > / Ta < 5 + > co-doping regulation and control method provided by the invention, by increasing lattice distortion and reducing oxygen vacancy concentration, the electrical property of the material is improved while the relative stability and high density of the material structure are ensured. The result shows that the Sb < 3 + > / Ta < 5 + > co-doping not only can obviously improve the piezoelectric coefficient of the BIT ceramic to 25.1 pC / N, but also can ensure that the BIT ceramic still has excellent resistivity of 8.1 * 10 < 6 > omega.cm at 500 DEG C. The invention also provides a preparation method and application of the Sb < 3 + > / Ta < 5 + > co-doped bismuth titanate-based piezoelectric ceramic.

The application discloses a training filling body, which comprises a body, a partition and a filler. The body is divided into a filling part and a closed space part by the partition. The filling part is filled with the filler, which at least comprises filling particles. The filling part filled with the filler constitutes a load part of the training filling body. The closed space part constitutes a part of the training filling body for gripping. The material constituting the filling part is softer or more elastic than the material constituting the closed space part. The filling part and the closed space part are not communicated with each other. The filler is limited in the filling part and cannot enter the closed space part. The training filling body of the application will not damage the floor or hurt the trainer. Meanwhile, the relative stability of the center of gravity can be maintained along with the action of the trainer in the training use, so that the training action of the trainer is smooth and coherent, the sports interest of the trainer is enhanced, and the persistence of the training is facilitated.

The utility model discloses a joint power assisting device, relates to wearable exoskeleton technical field, the joint power assisting device comprises a first joint component and a second joint component, the first joint component is provided with a first wearing component, and the second joint component is provided with a second wearing component. The first joint component is slidably connected with the first wearing assembly, and / or the second joint component is slidably connected with the second wearing assembly, so that the first joint component and the second joint component can be connected with the first wearing assembly in a sliding mode in the process of assisting joint movement of a wearer. The first joint component and the first wearing assembly and / or the second joint component and the second wearing assembly can slide relatively, so that the problem of potential difference caused by the fact that the joint power assisting device cannot completely fit the human body joint rotation form is solved, and it is ensured that the joint power assisting device and a wearer are relatively stable; and the boosting effect can be improved.

This utility model relates to the field of flow slide technology and discloses a flow slide with a buffer structure. The flow slide with a buffer structure includes a mounting shell, a connecting shaft inside the mounting shell, a roller rotatably connected to the arc surface of the connecting shaft, a buffer mechanism inside the mounting shell, a promoting mechanism inside the mounting shell, a sealing block detachably connected to the upper surface of the mounting shell by bolts, and a mounting block fixedly installed on the inner wall of the mounting shell. In this flow slide with a buffer structure, a rubber sleeve is fixedly installed on the surface of the roller. When the roller is impacted, the rubber sleeve deforms to buffer a certain amount of impact force. Simultaneously, the slider moves along the straight rod, and the return spring deforms to buffer the impact. As the sleeve moves along the straight rod, a limiting ring on the sleeve, in conjunction with a rubber pad, limits the movement distance of the slider, ensuring the deformation of the return spring, thereby ensuring stable operation and relative stability of the roller.

The utility model relates to a friction press with a buffer device, which belongs to the technical field of friction presses and comprises a worktable, mounting grooves are arranged at two ends in the worktable, buffer blocks are slidably connected in the mounting grooves, and two fixing rods are fixedly connected in the mounting grooves. The damping device has the advantages that when the stamping plate stamps downwards, large impact force can be formed on the supporting base, the supporting base moves downwards when pressed, the connecting rod is used for pushing the buffer block to slide in the corresponding installation groove, the damper can be triggered, meanwhile, the buffer spring can also be pressed to generate large deformation, and therefore the damping device is not prone to being damaged. The buffer structure in the friction press has a certain buffer effect, the damper is used in most buffer processing machines, the buffer structure has the advantages of being good in buffer effect, long in service life, stable and the like, and therefore the stability of the buffer structure in the friction press can be improved.