35results about How to "Change the way of force" patented technology

The invention belongs to the technical field of metallurgical machinery and discloses a three-supporting surface prestress blocking seat mechanism of a converter. The three-supporting surface prestress blocking seat mechanism of the converter mainly comprises a supporting ring, a converter shell, supporting ring blocking seats and a converter shell seat assembly, wherein the supporting ring blocking seats are welded on the supporting ring, the converter shell seat is welded on the converter shell, the upper parts of the supporting ring blocking seats of both sides are connected by a pretension pull rod and a linking member and are pretensioned inwards, the converter shell seat is clamped between the supporting ring blocking seats, the converter shell seat and the supporting ring blocking seats are provided with two lateral contact supporting surfaces, a longitudinal contact cushion block is additionally arranged between the supporting ring and the converter shell seat, and a longitudinal contact supporting surface is arranged between the supporting ring and the converter shell seat. The three-supporting surface prestress blocking seat mechanism effectively restricts a lateral gap and longitudinal elastic displacement of a converter body in the supporting ring, increases the operation stability of the converter, prolongs the service life, improves the reliability of the converter and is a novel technology with a popularization value on the converter.

The invention discloses a plastic forming method of an internal hexagonal hole of a long and thin rod. The plastic forming method of the internal hexagonal hole of the long and thin rod comprises thefollowing steps of blanking; end face shaping on a first station, and prefabrication of a counter bore and a bevel at an opening; thin extrusion on a second position, specifically, an internal hexagonal hole section is extruded to be thin; and formation on a third station, specifically, the internal hexagonal hole is formed. According to the plastic forming method of the internal hexagonal hole ofthe long and thin rod, the service life of a die is long, and the production efficiency is high.

The invention provides a fiber grating settlement sensor, which belongs to the technical field of soil monitoring and sensing, and comprises a first pipe body, a second pipe body sleeved outside the first pipe body, an elastic member arranged inside the first pipe body, and Rigid elements erected on the top of the first pipe body; the bottom of the first pipe body is closed; the second pipe body and the first pipe body are in clearance fit; the outer wall of the second pipe body is provided with a The force bearing part of the pressure under the measured soil layer; the bottom of the elastic member is connected to the bottom of the first pipe body, and the top extends to the outside of the first pipe body or is flush with the top of the first pipe body; The optical fiber grating of the elongation of the elastic part; one end of the rigid element is connected with the top of the elastic part, and the other end is connected with the top of the second tube body. The optical fiber grating settlement sensor provided by the invention has accurate measurement results, simple structure, convenient installation, convenient maintenance, and is easy to carry and move.

The invention discloses an assistant device for pedaled lower limb position rehabilitation. The device comprises a base plate, the upper surface of the base plate is connected with the lower surface of a seat plate through a supporting bar, the middle position of the right end of the seat plate is connected with the left end of a transverse plate in a rotational mode through a first rotary shaft, the right end of the lower surface of the seat plate and the left end of the lower surface of the transverse plate are connected with a fixing device separately, the right end of the transverse plate is connected with the upper end of a vertical plate in a rotational mode through a second rotary shaft, a supporting plate is arranged on the right side surface of the transverse plate, screws are symmetrically fixed to the left side surface of the supporting plate, and the left end of each screw penetrates a limit hole and connected with a butterfly nut in a threaded mode. When a patient stands, a foot to be rehabilitated moves up and down to overcome a spring to work, and the exercise effect is good; when the patient is tired or strenuous exercises are not suitable for lower limb joints of the patient, the patient sits on the seat plate, a shank of the patient drives the vertical plate to waggle transversely with a small motion amplitude, and the therapeutic effect is good; the included angle between the transverse plate and a horizontal plane is adjusted by the fixing device, so that the exerting mode of the lower limb joints of the patient is changed.

A hydraulic press with integrated cylinder and beam comprises a housing (13), a thrust plunger (16), a worktable (15), a sliding block (14), an upper die (6) and a lower die (7). A retainer (20) is fixedly installed on the inner wall of the housing. A guide sleeve (18) with a seal is fixedly installed in the retainer. The thrust plunger is disposed in the guide sleeve and is movable up and down. The lower end of the thrust plunger is connected with the sliding block (14). The upper die is fixedly installed on the bottom end surface of a groove of the sliding block. A fixing plate (19) is installed and fixed horizontally in the housing. The worktable is mounted on the fixing plate. The lower die is mounted on the worktable, and corresponds to the upper die. The hydraulic press is characterized by light weight, high total pressure and low cost.

The invention discloses a vertical small-roller-diameter working roller ring rolling device and belongs to the technical field of ring piece rolling equipment. The vertical smaller-roller-diameter working roller ring rolling device solves the technical problems that the contact area of a working roller and a to-be-rolled ring piece is large, and the required equipment rolling force is large. The device comprises a roller frame, an upper roller system and a lower roller system. The roller frame comprises a main frame and an auxiliary frame. The main frame and the auxiliary frame are oppositelyarranged. Upper roller sliding blocks are correspondingly arranged in the main frame and the auxiliary frame. Lower roller sliding blocks are arranged below the upper roller sliding blocks in the mainframe. Lower roller fixing seats are arranged below the upper roller sliding blocks in the auxiliary frame. A hydraulic cylinder drives the upper roller sliding blocks to slide up and down along guide pillars. The upper roller system comprises an upper support roller, an upper transmission roller and an upper working roller, wherein the lower roller system and the upper roller system are symmetrically arranged with respect to the center line in the rolling roller seam, and the lower roller system is sleeved with the to-be-rolled ring piece. According to the vertical small-roller-diameter working roller ring rolling device, the small-roller-diameter working roller enables the local deformation area to be reduced, the rolling pressure and torque transmission of the working roller are guaranteed by the multi-roller train transmission system, and the service life of the roller is prolonged.

The invention relates to a trampling simply supported beam piezoelectric generating device which comprises an angle iron framework, two crossties, bolts, a rubber gasket and multiple groups of simply supported beam piezoelectric units, wherein the two crossties are fixedly arranged on the angle iron framework; the multi groups of simply supported beam piezoelectric units are arranged on the crossties in sequence in a simply supported mode through the bolts; the rubber gasket covers the multiple groups of simply supported beam piezoelectric units; each simply supported beam piezoelectric unit is composed of a beam and piezoelectric ceramic plates, the plurality of piezoelectric ceramic plate are stuck on the inner side of the beam; the piezoelectric material of the piezoelectric ceramic plates is lead-zirconate titanates (PZT-5A) material, the beam is a long rectangular slice and is made of alloy steel; leads are respectively led out from each electrode on the upper and lower surfaces of the piezoelectric ceramic plates so as to connect all the simply supported beam piezoelectric units in parallel. The device provided by the invention can be placed in crowded places or indoor corridors for collecting energy generated by walk trampling and covert the energy into electric energy; therefore the device can be applied to auxiliary lighting or emergency lighting.