5results about How to "Increase horizontal stiffness" patented technology

The invention discloses a robot milling posture optimization method based on a main stiffness difference value, and belongs to the field of robot milling. The method comprises the following steps: carrying out equidistant dispersion division on a milling track of a robot, and numbering each track point; calculating a tool nose point rigidity ellipsoid of the robot in a posture corresponding to the specific redundant angle at each processing track point; the point stiffness ellipsoid of the tool nose is projected to a milling plane, and the main stiffness difference PSD of the robot is obtained; and with the maximum sum of the main stiffness differences PSD corresponding to all the machining track points as an optimization target, traversing the optimal redundancy angles of all the track points under the constraints of physical interference, flexible space and joint speed, and solving the optimal robot milling posture. According to the invention, the whole milling process is carried out stably, and modal coupling flutter is avoided.

The invention discloses a pre-pressing type ultrathin matrix spring vibration isolation support and a mounting method thereof. The support comprises an upper seat plate, a lower seat plate, a vibration reduction assembly, a pre-pressing assembly and a horizontal buffering and limiting assembly. And the upper seat plate and the lower seat plate are fixedly connected with an upper building and a lower building respectively. The two ends of the vibration reduction assembly are connected with the bottom of the upper seat plate and the top of the lower seat plate correspondingly, and the vibration reduction assembly comprises multiple sets of high-rigidity springs arranged in an array. Each pre-pressing assembly comprises a first supporting frame, a second supporting frame, an adjusting screw rod and a locking nut, the first supporting frame and the second supporting frame are symmetrically arranged up and down, the two ends of the adjusting screw rod penetrate through the first supporting frame and the second supporting frame correspondingly, the locking nuts are in threaded connection with the two ends of the adjusting screw rod, and the damping assembly can be adjusted to be in a rated bearing state through the pre-pressing assemblies. The horizontal buffering and limiting assembly buffers and limits the horizontal relative movement between the upper base plate and the lower base plate. The vibration isolation support is small in size, light in weight and capable of pre-pressing and adjusting the rated load bearing of the vibration reduction assembly, and meanwhile has the buffering and vibration reduction function in the horizontal direction.

The present invention relates to the field of marine engineering technology, and in particular to an energy dissipation floating breakwater structure with a resonance cavity moored with serial buoys, comprising a floating breakwater body, which comprises a movable airtight chamber, a floating breakwater wave-facing side and a floating breakwater back-wave side, the airtight chamber is arranged between the floating breakwater wave-facing side and the floating breakwater back-wave side, and the bottom unclosed gap between the airtight chamber and the floating breakwater wave-facing side constitutes a first resonance chamber, and the bottom unclosed gap between the airtight chamber and the floating breakwater back-wave side constitutes a second resonance chamber; and a mobile control device is stored in the airtight chamber, and the mobile control device controls the airtight chamber to move toward the floating breakwater wave-facing side or the floating breakwater back-wave side based on a detected wave period, so as to adjust the widths of the first resonance chamber and the second resonance chamber, so that the natural frequency of the energy dissipation floating breakwater structure is the same as the detected wave frequency, thereby achieving a better wave dissipation effect.

This invention relates to a leaf spring elastic support for a balance suspension, comprising an upper mounting base and a lower mounting base, which are longitudinally fitted together. A spring mounting position is provided circumferentially on the upper mounting base, with the spring portion mounted vertically within the mounting position. The upper mounting base is fixed to a pre-tightened frame via an intermediate connecting part to provide vertical vibration damping. The vertical mounting of the spring portion, combined with the special structures of the upper and lower mounting bases, such as conical mounting surfaces and cylindrical support structures, effectively resists horizontal forces and tensile forces, preventing performance degradation or failure of the support under complex stress environments. Simultaneously, this design enhances the structural strength of the support and extends its service life.

The utility model provides a shock insulation support which comprises a support body, an upper connecting plate located on the upper end face of the support body and a lower connecting plate located on the lower end face of the support body. The shock insulation support further comprises steel U-shaped pieces evenly distributed on the periphery of the support body, the steel U-shaped pieces are provided with the opening ends located on the head portions and the closed ends located on the tail portions, the two sides of the opening ends are connected with the upper connecting plate and the lower connecting plate respectively, and therefore the horizontal rigidity of the shock insulation support can be enhanced through the elastic stages of the steel U-shaped pieces; the energy consumption can be improved through plastic deformation of the steel U-shaped piece, and the energy consumption capacity is high; by using the steel U-shaped piece, the use amount of the pencil lead can be greatly reduced, even the pencil lead is not used, the cost is lower, and the environment-friendly requirement is met; due to the existence of the steel U-shaped piece, the shock insulation support not only can effectively counteract impact load of an earthquake and dissipate earthquake energy, but also can effectively counteract disturbance of wind load and slight vibration to the shock insulation support, and is good in performance stability.