13 results about "Mechanical overload" patented technology

The invention discloses a hydraulic damping self-adaptive adjustment method based on a wave energy prediction model and electronic equipment, and relates to the field of hydraulic damping adjustment, and the method realizes prospective intelligent control of a gear rack type PTO system through deep coupling of the wave energy prediction model and a hydraulic damping self-adaptive adjustment mechanism. In a training stage, a target device and a neighborhood device are sequentially alternated, and a general prediction model covering buoys in a preset sea area range is constructed; in the operation stage, a model is constructed based on newest multivariable observation time sequence data to input and output a future wave energy predicted value of the position of a buoy corresponding to a target device, the opening degree of a control valve on a hydraulic oil way is adjusted in advance according to the future wave energy predicted value, and meanwhile feedback correction is conducted in combination with the actual operation state of the device. The limitation that a traditional PTO system only depends on current state feedback is broken through, the predictability and robustness of damping adjustment are remarkably improved, and the energy capture insufficiency under the small wave working condition and the mechanical overload risk under the large wave impact are effectively avoided.

The invention provides a tool and method for tube expansion of an endoscope clamp tube, and relates to the technical field of medical instrument manufacturing, the tool comprises a tool base, a tube expansion head, a tube expansion screw, a feeding handle, a pre-pressure and overload protection mechanism, a heating assembly and a scale indication mechanism; a conical hole is formed in the front end of the pipe expanding head, the pipe expanding screw rod is arranged in the tool base in an axial moving mode, and a ball head matched with the conical surface of the conical hole is arranged at the front end of the pipe expanding screw rod. When the feeding handle is rotated, the axial movement of the feeding handle is limited, so that the pipe expanding screw rod is driven to generate axial movement; when the axial counter force generated when the ball head extrudes the taper hole is increased to be balanced with the pre-pressure, threaded transmission between the feeding handle and the pipe expanding screw rod is invalid, the inner wall scratching possibly caused by passing of an internal tool can be fundamentally eradicated, the core function face of a workpiece is perfectly protected, and the service life of the workpiece is prolonged. And mechanical overload protection and accurate temperature control functions are integrated, so that the quality of the inner wall of the clamp channel pipe is improved safely, precisely and efficiently.

An operating element (1) has an operating lever (2) which is mounted pivotably about at least one axis, wherein a frame (3) is provided at the free end of the operating lever (2) and the operating lever is guided such that its free end and the frame (3) lie in a housing (4), wherein the operating element (1) also has means (5) for limiting the deflection of the operating lever (2) for limiting the deflection of the operating lever to a first deflection angle (CH), wherein the frame (3) has at least one first stop (6) and the housing (4) or the means (5) for limiting the deflection of the operating lever (2) has a first counter stop (7) which corresponds to the at least one first stop (6), wherein the first stop (6) and the first counter stop (7) do not touch one another when the operating lever (2) is at the first deflection angle (CH) and touch one another when the operating lever (2) is deflected beyond the first deflection angle (CH) to a second, greater deflection angle (a2).

The present application relates to the technical field of safety performance evaluation of energetic materials, in particular to an explosive safety boundary intelligent monitoring system based on multi-parameter response analysis. The system comprises a granulation mechanism and a sensor system, which comprises a thermocouple sensor, a force sensor and an electrostatic sensor. The thermocouple sensor, the force sensor and the electrostatic sensor are connected to a signal acquisition instrument and then connected to a computer, so that the real-time monitoring of the temperature, pressure and electrostatic accumulation trend during the granulation process can be realized through the computer. The determination of the safety boundary of the present application considers the statistical distribution characteristics of the response probability under multiple repeated tests, and the error of the obtained safety boundary is smaller. The intelligent monitoring system of the granulation process can accurately monitor the changes of the temperature, pressure and electrostatic quantity of the explosive in real time, and effectively avoid the safety hazards such as thermal runaway, mechanical overload and electrostatic discharge risk in the production process.

The invention relates to a laser welding robot with an anti-collision mechanical overload protection function and a working method thereof.The laser welding robot comprises a mechanical arm and a welding mechanism, the welding mechanism is installed on the mechanical arm, the welding mechanism comprises a supporting seat connected with the end of the mechanical arm, the supporting seat is arranged on the outer side of the supporting seat, and a ring seat is arranged on the outer side of the ring seat; a conical cover is arranged on the outer side of the ring seat, a ball seat is installed in the center of the bottom side of the supporting seat, a ball head is rotatably installed in the ball seat, and a laser welding head is installed on the bottom side of the ball head; omnidirectional graded protection is achieved, lateral collision is coped with through a conical cover and a spring, collision of a core area is coped with through a light curtain, a rubber base and a micro strain gauge, partitioned and graded protection from the periphery to the core is achieved, and the device adapts to different collision situations.

The invention relates to an aluminum alloy flexible cable and a preparation method thereof, and belongs to the technical field of wires and cables. The cable is composed of conductors, insulating layers and a double-layer sheath, the inner-layer conductor is formed by stranding high-strength aluminum alloy wires at a small pitch, the outer-layer conductor is formed by stranding low-strength aluminum alloy wires at a large pitch, and the stranding directions of the two layers are opposite; the sheath is of a double-layer structure, a stress dredging structure formed by hemispherical micro salient points distributed in a matrix mode is arranged between the inner sheath and the outer sheath, and the arrangement direction of the micro salient points is the same as the twisting direction of the outer layer conductor. Through the differential design of the inner and outer layer conductors and the synergistic effect of the stress dredging interface, the mechanical strength of the cable is ensured, the flexibility and the bending fatigue resistance are greatly improved, the visual early warning function of mechanical overload is realized more innovatively, and the mechanical overload early warning effect is improved. When bending exceeds a safety threshold value, the outer layer conductor generates visible buckling deformation before the inner layer conductor, and the problem of sudden fracture caused by hidden damage of a traditional cable is effectively avoided.

The invention discloses an inductor failure risk response structure, a high-reliability inductor and a failure risk warning method, the inductor failure risk response structure is specifically a core-shell composite functional phase, and the functional phase takes metastable austenite microspheres as a core and borosilicate glass with density gradient as a shell. The austenite nucleus can generate martensite phase transformation under the triggering of mechanical stress to cause regular drift of the magnetic conductivity of the magnetic core, and the regular drift is used as an early warning electric signal; and the glass shell is softened and flows when being overheated, so that self-repairing of the microcracks is realized. Through the centrifugal forming technology, the functional phase can form gradient distribution with the concentration gradually decreased from inside to outside in the magnetic core, and therefore the intelligent response capacity is accurately located in a high-risk area. The manufactured high-reliability inductor has endogenous sensing, early warning and self-repairing capabilities on mechanical overload and overheating risks, and the reliability of the high-reliability inductor under severe working conditions is remarkably improved.

The invention relates to the technical field of petroleum drilling, in particular to a drill string mechanical behavior simulation test device and a kinetic analysis method, and the device comprises a fixing assembly, an external loading unit and a transmission system; the fixing assembly comprises a test kettle, a drill column and a spring bearing base arranged in the test kettle, the external loading unit comprises a hydraulic power control device and a servo motor, power is provided by the hydraulic power control device, and axial tension or pressure is applied to the top of the drill column through a loading pipe; the servo motor is controlled to apply torque to the drill string through the torque transmission line, and the composite stress condition of the drill string in the shaft is simulated; the transmission system comprises a stress sensor and a strain sensor which are arranged on the outer wall of the drill string. According to the mechanical test device, the spring bearing base is arranged to bear the drill column, and the elastic piece can play a buffering role between the test kettle and the drill column when testing axial force is loaded to the drill column in a mechanical test, so that the situation that the simulation process is affected due to drill column deformation during mechanical overload is avoided.

A device for mechanical overload protection in a drive train of a machine tool, the drive train having an output side with an output shaft and an input side with a motor shaft. The output shaft is operatively connected to the motor shaft by way of a connector, the device for mechanical overload protection being formed by a press-fit connection between the connector-on the one side and the motor shaft or the output shaft on the other side. A method for producing such a device for mechanical overload protection in a machine tool is also provided. The peak torques in the drive train, which preferably occur for a short time, can be significantly reduced and the machine tool and its mechanical components can be protected from damage in the event of a blockage.

The present application relates to the technical field of light leakage detection, in particular to a light leakage detection platform equipped with multi-axis linkage and centering function for intelligent sensor detection, comprising a positioning platform and a pressing assembly, the pressing assembly comprises a driving block, a bearing block and a probe carrier, a probe assembly is arranged in the probe carrier; a gradually changing curved surface is arranged on the bottom surface of the driving block, a containing cavity is arranged on the top of the bearing block, the containing cavity is provided with an elastic petal, and the elastic petal is provided with a cross-section thinning area; a stress main beam and at least one order secondary shunt beam are mounted in the probe carrier, a guide hole is arranged in the probe carrier, and a spiral groove is arranged on the inner wall of the guide hole. The gradually changing curved surface and the elastic petal cooperate to center, the multi-stage shunt beam and the spiral groove drive the probe to spin, and the dissipation type insulation column is embedded, the non-destructive self-adaptive alignment and load sharing are realized, the low resistance test path is established, and the mechanical overload and electrostatic controlled discharge double protection are provided.

The utility model relates to the technical field of springs, and discloses a spring with a mechanical overload protection mechanism, which comprises a sleeve, a fixed ring is sleeved on the outer surface of the sleeve, a movable ring is slidably sleeved on the outer surface of the sleeve, an overload protection device is arranged in the sleeve, and the overload protection device comprises a first fixed rod. The first fixed roller is fixedly connected to the lower surface of the moving ring, the lower end of the first fixed roller is fixedly connected with a disc, the upper surface of the disc is fixedly connected with a fixed rod, the fixed rod slidably sleeves the inner surface of the sleeve, the upper end of the fixed rod is fixedly connected with a first piston, and the first piston slidably sleeves the inner surface of the sleeve; according to the spring with the mechanical overload protection mechanism, the spring can be limited after being stretched to a certain length, the situation that stress is too large due to the fact that the spring is stretched too long is prevented, the spring can be effectively protected, and the situation that deformation and damage are caused due to the fact that the spring is stretched too fast can be prevented.

The application discloses a tension direct measurement device and method for electric power tensioning equipment, relates to the technical field of overhead transmission line construction equipment, and comprises a device main body, a brake frame is fixedly installed above the device main body, a bearing seat is fixedly installed on the side surface of the brake frame, a speed reducer is arranged on the side surface of the bearing seat, and a force plate is fixedly installed on the speed reducer. Advantages are that the application adopts a mechanical force transmission mode of floating type installation of a speed reducer matched with a force plate directly connected with a force gauge, realizes direct real-time measurement of the tension of a steel cable under the conditions of braking and operation, eliminates measurement interference through a matched compensation unit, guarantees measurement accuracy and stability, realizes lossless protection of core elements through an added mechanical overload protection unit, is high in reliability and easy to maintain, and the safety and operation efficiency of equipment operation are improved.