45results about How to "Improve axial rigidity" patented technology

A turbine stage in a turbomachine including ring sectors arranged about a turbine impeller, and an annular support supporting the ring sectors and attached to a turbine casing is disclosed. The annular support is able to be deformed elastically in the radial direction to cushion at least a portion of the deformations of the turbine casing in operation.

The invention provides an illumination module movement device. The device comprises a pedestal, a first stop block, a second stop block, a loading plate, a cylinder and a rotary unit, wherein the first stop block and the second stop block are respectively fixed on the pedestal; the loading plate leans against the first stop block; the rotary unit loads and rotates the loading plate; the cylinder is connected with the rotary unit and drives the rotary unit along a Z direction; and the rotary unit rotates the loading plate to make the loading plate lean against the second stop block when the cylinder drives the rotary unit to a fixed distance along a +Z direction. The illumination module movement device provided by the invention can rapidly lift and rotate an illumination top module and has a high repeated positioning precision.

A magnetic load sensor is provided which is high in axial rigidity. The load sensor includes a pair of parallel plate coupled together by coupling pieces. The coupling pieces are inclined relative to the axial direction such that when an axial load is applied to the parallel plates, the parallel plates are displaced relative to each other in a direction perpendicular to the axial direction, due to deflection of the coupling pieces. A magnetic target is mounted to the parallel plate, and a magnetic sensor element is mounted to the parallel plate such that when the parallel plates are displaced relative to each other in the direction perpendicular to the axial direction, the magnetic target and the magnetic sensor element are displaced relative to each other in the direction perpendicular to the axial direction.

The invention discloses a segment fixing pile device for fixing a shield tunnel segment, which comprises a grouting outer sleeve and a grouting inner sleeve; the front end of the grouting outer sleeve is provided with a connecting part and a step part, so that The connecting part and the step part are fixedly connected, the rear end of the grouting outer sleeve is provided with a sealing cover; the front end of the grouting inner sleeve is provided with a support part, and the support part is located on the step part, and the step part The grouting inner sleeve is fixedly connected with the supporting part, and the back end of the grouting inner sleeve is connected with a grouting bag; the connecting part and the outer end of the grouting outer sleeve near the connecting part are both provided with threads. The invention also discloses a construction method of the segment fixing pile device, which comprises the steps of opening the grouting hole, stirring the grouting liquid, grouting and the like. The invention can timely fix the tunnel segment during shield construction, thereby effectively improving construction efficiency and construction quality.

Provided are a half steel frame reinforcing type adapting type composite pipe and a manufacture process thereof. The manufacture process includes manufacturing a frame by adopting casting or stamping process, and respectively manufacturing a socket-and-spigot main pipe and a socket-and-spigot auxiliary pipe in injection molding and spraying mode and assembling the pipes. A frame outer layer is characterized in that an outer wall of the socket-and-spigot main pipe is formed by a large conical wall on the front portion, a cylindrical wall on the back portion and a middle small conical wall, the inner wall of the socket-and-spigot main pipe is composed of a socket-and-spigot cavity and an overflow cavity, a socket-and-spigot composite pipe is composed of the adapting main pipe and the adapting auxiliary pipe in adaptive fit mode, a group of grooves are arranged on a front end opening of the frame, and a sealing ring is arranged in the grooves respectively in fit mode. The half steel frame reinforcing type adapting type composite pipe overcomes the shortcoming that a polyethylene resin plastic composite pipe / polyethylene (PE) pipe is easy to separate due to the fact that expansion coefficient is different in connection installation, non-roundness at the abutting connection position is increased, the welding position generates quick stress cracking and causes the fact that the connection system of the cracking portion leaks water, gas and liquid, a cast-iron pipe and the PE pipe cannot be interchanged, old project modification is affected and the like. The composite type and the manufacture process are suitable for connection pipes of various water delivery and gas delivery projects and are especially suitable for interchangeable connection of plastic pipes such as PE, PVC-U and PVC-M and nodular cast iron pipes.

The invention discloses a small-volume heavy-duty multi-stage electric cylinder. The small-volume heavy-duty multi-stage electric cylinder comprises an electric cylinder body, a motor, and a reductiongearbox; the electric cylinder body is provided with a planetary ball screw shaft, a hollow ball screw shaft, a guide rod, an inner supporting sleeve, and an outer supporting shell body from the inside to the outside, wherein the planetary ball screw shaft, the hollow ball screw shaft, the guide rod, the inner supporting sleeve, and the outer supporting shell body are coaxial; linear motion of asupporting plate is realized through cooperation of a guide key groove formed in theouter circle of the supporting plate and an outer guide key arranged on the inner circle of the outer supporting shell body, the hollow ball screw shaft is connected with a hollow ball screw nut in a threaded mode and fixedly connected with one end of the guide rod through the hollow ball screw nut, and linear motion of the hollow ball screw nut is realized through cooperation of the guide key groove formed in the outer circle of the hollow ball screw nut and an inner guide key arranged on the inner circle of the inner supporting sleeve; and the reduction gearbox is fixedly connected with the motor and fixedly connected with the planetary ball screw shaft through a worm wheel, and a reduction gearbox shellbody is fixedly connected with one end of the outer supporting shell body. The space volume is reduced, thus axial stiffness is significantly increased, and the bearing capacity is enhanced.

The invention provides an illumination module movement device. The device comprises a pedestal, a first stop block, a second stop block, a loading plate, a cylinder and a rotary unit, wherein the first stop block and the second stop block are respectively fixed on the pedestal; the loading plate leans against the first stop block; the rotary unit loads and rotates the loading plate; the cylinder is connected with the rotary unit and drives the rotary unit along a Z direction; and the rotary unit rotates the loading plate to make the loading plate lean against the second stop block when the cylinder drives the rotary unit to a fixed distance along a +Z direction. The illumination module movement device provided by the invention can rapidly lift and rotate an illumination top module and has a high repeated positioning precision.