7results about How to "Reduce axial vibration" patented technology

A compressed air energy storage underground chamber inner arch type cylindrical shell composite lining structure relates to the technical field of new energy engineering structures, and structurally comprises a surrounding rock, a steel-concrete outer layer lining, a cylindrical shell support extrusion connecting device, an inner arch type cylindrical shell support and an inner arch type cylindrical shell from outside to inside; a plurality of inner arch type cylindrical shell sections are connected to form an inner arch type cylindrical shell longitudinal joint, and a plurality of inner arch type cylindrical shells are sequentially connected to form a closed gas storage space. The method has the beneficial effects that a plurality of inner arch type cylindrical shells with proper spans are arranged on the inner wall of the outer layer lining, so that a high-internal-pressure gas storage load is converted into axial pressure of the inner arch type cylindrical shells, compression stress between arch type cylindrical shell supports, distribution pressure of the outer layer lining and radial pressure of far-end surrounding rock; on the premise that the space utilization rate of the gas storage chamber is not obviously weakened, circumferential deformation, circumferential stress and axial temperature stress of the outer lining and the near-end surrounding rock are reduced, and the safety of the gas storage structure and the stability of the surrounding rock are improved.

The utility model relates to municipal works pipe jacking construction technology field discloses a kind of folding linear pipe jacking line shape measuring devices, including clamping mechanism, folding ruler, adjustable target and the telescopic fixing mechanism for locking the included angle between clamping mechanism and folding ruler;The clamping mechanism is used to clamp the measuring device in the end of pipe wall two sides of construction pipe jacking;Folding ruler one end articulates clamping mechanism;Folding ruler is provided with recess along length direction, and folding ruler is divided into several short rulers, and short ruler is connected with hinge;Laser source and reflector are provided on the adjustable target, and adjustable target is embedded recess to form sliding connection;The telescopic fixing mechanism includes telescopic link and first fixed bolt.The utility model integrates clamping, extension, measurement, target and locking function in one, adapt to the narrow space limit of construction;The short ruler design of folding ruler meets different pipe diameter measurement demand;Telescopic link adjusts included angle, ensures that folding ruler is perpendicular to pipeline axis, reduces inclination error.

The utility model discloses a gun drill guiding auxiliary device of promoting pressure injection rod deep hole machining precision belongs to gun drill processing technical field, including auxiliary frame, the auxiliary frame upper surface rotationally connected with the fixed frame, and the auxiliary frame upper surface slidingly connected with the lower guide block, and the lower guide block upper end slidingly connected with the upper guide block, and the upper guide block outside is pasted with the fixed frame inner wall simultaneously, the upper guide block inside is all set up with the lower guide block inside connection groove, and the connection groove surface fixedly connected with the reinforcing rib. The gun drill guiding auxiliary device of promoting pressure injection rod deep hole machining precision, through setting up the auxiliary frame and the fixed frame, effectively avoid the gun drill and appear deviation when initial drilling, from the machining starting stage just has guaranteed the position precision of deep hole machining, restricts the displacement of gun drill in each direction simultaneously, controls position deviation in the extremely small range, effectively reduces the accumulation of position deviation, guarantees the straightness and cylindricity of deep hole machining.

The invention provides a combustion chamber interstage section structure which is made of a ceramic matrix composite material and comprises a first annular structure, a second annular structure and a supporting ring face located between the first annular structure and the second annular structure. The metal switching section comprises a connecting piece and a baffle plate, and the connecting piece and the baffle plate are opposite to each other and define an annular groove for accommodating the second annular structure; the axial elastic sheet is arranged between the baffle and the interstage section and is positioned on the periphery of the supporting ring surface; the radial elastic piece is located in the annular groove and arranged on the radial outer side of the second annular structure. And the fastener is used for fastening the connecting piece and the baffle and enabling the connecting piece and the baffle to clamp the second annular structure. By means of the structure, the interstage section of the ceramic matrix composite can release thermal deformation in the axial direction and the radial direction in time, and thermal stress is reduced. A combustion chamber and an aero-engine are also provided.

The present invention relates to the technical field of textile machinery, and relates to a long-fiber spindle for use on a two-for-one twisting machine, comprising: a frame, a spindle rod, a spindle disk, a spindle seat, a horizontal clamping mechanism, an axial clamping mechanism, and a vibration isolation mechanism. The frame comprises columns and cross bars, and two cross bars are connected between two vertical columns; the two ends of the spindle rod are respectively connected to the spindle seat in a rolling manner; and a spindle disk is fixed in the middle of the spindle rod. The present invention is provided with a vibration isolation mechanism, which isolates a plurality of spindles through a shock absorbing mechanism to prevent the axial force of the spindles from resonating and causing severe vibration of the frame, thereby greatly affecting the disorder of the spindle winding sleeve. On the other hand, through the horizontal clamping mechanism and the axial clamping mechanism, the large-area clamping force of the clamping mechanism ensures the stable installation of the spindle, while preventing the severe vibration of the spindle.

This application discloses an automatic grinding device for angle steel saw blades, relating to the technical field of metal processing equipment. It includes a base, a positioning shaft, a fixing structure, an angle steel saw blade feeding mechanism, a damping braking mechanism, and a grinding mechanism. The feeding mechanism drives the saw blade to rotate and controls each rotation by one tooth pitch angle, achieving precise feeding of the saw blade. The damping braking mechanism eliminates the rotational inertia of the saw blade, allowing it to stop accurately. The grinding mechanism precisely grinds each tooth of the saw blade, ensuring grinding quality and achieving automated grinding of angle steel saw blades, thus improving grinding efficiency and quality.

The present invention provides a liquid distributor bracket and a compressor, which relate to the technical field of compressors, and solve the technical problem in the prior art that the axial vibration of the liquid distributor is not conducive to the stable operation of the compressor. The liquid distributor bracket and the compressor include a liquid distributor bracket and a connecting bracket, and the liquid distributor bracket is telescopically arranged on the connecting bracket; the liquid distributor bracket is connected to the liquid distributor cylinder, and the liquid distributor cylinder is provided with a closing cylinder section closing toward the center direction of the liquid distributor cylinder; the liquid distributor bracket is provided with an accommodating portion and an abutting portion, and the accommodating portion is used to accommodate the closing cylinder section, and the abutting portion is arranged toward the accommodating portion to abut the closing cylinder section in the accommodating portion. The present invention is used to provide a liquid distributor bracket and a compressor that can reduce the axial vibration of the liquid distributor and is conducive to the stable operation of the compressor.