20results about "Calibrating/seeting protective devices" patented technology

The invention discloses a miniature circuit breaker automatic adjusting bimetallic strip device comprising a material supply mechanism, a carrier, a clamping feeding mechanism, a pressing mechanism, an adjusting mechanism, a ccd visual detection module, and a main control system used for controlling a detection adjusting device. The main control system receives the image information from the ccd visual detection module and judges whether the position of the bimetallic strip in the image meets a preset standard or not; if the bimetallic strip does not meet the preset standard, a pressing mechanism is controlled to press the bimetallic strip assembly, an electric device drives an adjusting rod to rotate to achieve torsion adjustment of the bimetallic strip, and the position of the adjusted bimetallic strip is obtained through a ccd visual detection module; the device has the effect of achieving automatic adjustment of the double-metal assembly.

The invention relates to automatic production equipment for miniature circuit breakers, and belongs to the technical field of circuit breaker production, the automatic production equipment comprises an equipment main body, the outer wall of the equipment main body is rotatably connected with a connecting shaft, the top of the connecting shaft is fixedly connected with a processing turntable, and the outer wall of the processing turntable is fixedly connected with an assembly box. When the vibration amplitude of the vibrating screen is adjusted through the variable frequency motor to meet the requirement for automatic feeding of parts of different sizes, the air suction machine body is driven through rotation of the first gear, so that dry air is conveyed into the spraying pipe and sprayed out through the nozzle, and under the action of the high-speed camera, the automatic feeding of the parts is achieved. The part feeding track in the feeding frame is automatically recognized, rectified and corrected, meanwhile, under long-time rotation of a first gear, a temperature sensor is arranged, and a control valve is automatically operated to be opened and closed, so that a graphene lubricating film is sprayed out from a lubricating spray hole, and the effect of self-lubricating the meshing part of the gear is achieved; and the precision of the assembly position of the circuit breaker is improved.

The invention provides a circuit breaker contact system parameter adjusting method and device and electronic equipment, and relates to the technical field of circuit breakers, and the method comprises the steps: obtaining an arc contact opening range, a main contact opening range and a critical short-circuit current interval of a to-be-adjusted circuit breaker; calculating the ratio of the arc contact opening distance to the main contact opening distance to obtain a first ratio; the first proportion is adjusted in a first preset proportion interval, the to-be-adjusted circuit breaker performs a breaking test with the target short-circuit current as the short-circuit current according to the value of the first proportion, and the target proportion of the to-be-adjusted circuit breaker is determined according to the arcing time or breaking times obtained through the breaking test, the arc contact opening distance and the main contact opening distance of the to-be-adjusted circuit breaker are adjusted according to the target proportion; the first preset proportion interval is 1.2-1.4, and the target short-circuit current is any value in the critical short-circuit current interval. By adjusting the opening distance of the arc contact and the opening distance of the main contact, the breaking reliability of the circuit breaker in a rated short-circuit breaking current range is improved.

The application provides a kind of adjusting device of circuit breaker double gold mechanism, including adjusting motor, rotary transmission mechanism and adjusting mechanism.The adjusting motor is provided with motor rotating shaft.The adjusting mechanism is provided with adjusting rod.The rotary transmission mechanism is arranged between adjusting motor and adjusting mechanism.The rotary transmission mechanism includes a one-way bearing, a transmission connecting piece and two or more radial compression structures.The one-way bearing is sleeved on the motor rotating shaft.The transmission connecting piece is sleeved on the one-way bearing.Two or more radial compression structures are symmetrically arranged on the transmission connecting piece.The radial compression structure radially compresses the motor rotating shaft and can drive the transmission connecting piece to rotate with the motor rotating shaft.The adjusting device of circuit breaker double gold mechanism of the application is not only simple to operate, but also can keep the stability of adjusting time, improve production efficiency, improve product quality and avoid quality risk.

The invention discloses an over-travel adjusting device of a vacuum circuit breaker and a use method of the over-travel adjusting device. The over-travel adjusting device comprises a positioning part and an adjusting part, the positioning piece comprises a positioning sleeve and a control part fixedly connected to one end of the positioning sleeve; the end, away from the control part, of the positioning sleeve is provided with a positioning structure in positioning connection with a guide sleeve of the pull rod assembly. The positioning structure is suitable for limiting rotation of the positioning sleeve relative to the guide sleeve after being in positioning connection with the positioning sleeve, an axial opening is formed in the opposite position of the side wall of the positioning sleeve, and the adjusting part is suitable for penetrating into the positioning sleeve to screw the adjusting bolt; and a limiting step which forms a backstop with the adjusting bolt is arranged in the positioning sleeve. By means of the overtravel adjusting device, the overtravel can be rapidly and effectively adjusted in place, and the working efficiency is improved.

A conductive system assembly and welding integrated machine includes an equipment base, a movement assembly unit, a hot riveting unit, a transmission device, a first rotary worktable, a second rotary worktable and a controller, the movement assembly unit includes a first lever loading device, a second lever loading device, a pin loading device, a torsion spring loading device, a limiting part loading device and a plastic part loading device, the hot riveting unit includes a connecting plate loading device, a contact loading device, a copper wire forming loading device, a first welding device and a second welding device, the first lever loading device, the second lever loading device, the pin loading device, the torsion spring loading device and the plastic part loading device can respectively load the first lever, the second lever, the pin, the torsion spring and the plastic part into the first limiting groove, and the connecting plate loading device and the contact loading device can respectively load the connecting plate and the contact into the second limiting groove on the second fixing fixture.

A pyrotechnic switching device comprises a housing containing fixed contacts (104,106, figure 1), a movable contact 108, and at least one pyrotechnic actuator 202 which when activated moves the movabl

A system for use as part of a circuit breaker comprises a carrier 104 having a threaded aperture 106, a bi-metal strip 102 attached to the carrier, and a threaded member 108 which engages with the thr

The invention relates to the field of power switches, and discloses a permanent magnetic mechanism, power distribution equipment and an adjusting method of the permanent magnetic mechanism, the permanent magnetic mechanism comprises a shell, a static iron core, a movable iron core, a magnetic assembly, an internal pull rod, a shaft fixing mechanism, a total travel adjusting assembly and an over travel adjusting assembly, the shaft fixing mechanism is fixedly connected with the movable iron core; the first end of the internal pull rod is connected with the shaft fixing mechanism through the axial through hole, and the second end penetrates through the axial center hole of the shell and extends out of the shell; the total stroke adjusting assembly is arranged at the first end of the internal pull rod and is configured to be used for adjusting the effective stroke of the internal pull rod so as to change the total stroke of the permanent magnetic mechanism. The overtravel adjusting assembly is connected to the second end of the internal pull rod and is configured to be independent of the total travel adjusting assembly to adjust the overtravel of the moving contact linked with the internal pull rod after the total travel is determined. The permanent magnet mechanism can adapt to different requirements of different scenes on the opening distance and the over travel, and the universality of the permanent magnet mechanism is improved.

The utility model discloses a bimetallic strip thermal protector calibration machine, which relates to the technical field of thermal protectors and comprises a calibration frame and an automatic blanking conveying device. The bottom wall of the calibration frame is fixedly connected with a storage box, the top of the storage box is provided with an inferior-quality product storage groove and a qualified product storage groove, the top of the calibration frame is provided with an inferior-quality product discharging port and a qualified product discharging port, and the inferior-quality product discharging port and the qualified product discharging port correspond to the inferior-quality product storage groove and the qualified product storage groove in the vertical direction; the automatic discharging and conveying device comprises a conveying belt, two heating plates, a conical automatic discharging hopper and a material guiding sliding frame, the conveying belt is installed at the top of the calibration frame, materials are guided through the material guiding sliding frame, and it can be guaranteed that the materials are placed in the middle of the conveying belt every time; the conveying belt can prevent the materials from making contact with the heating plates on the two sides in the material conveying process, so that the materials are located in the center of the two heating plates, and the heating effect of the materials is improved.

This invention relates to an automated production equipment for miniature circuit breakers, belonging to the field of circuit breaker manufacturing technology. It includes a main body of equipment, with a connecting shaft rotatably connected to the outer wall of the main body. A processing turntable is fixedly connected to the top of the connecting shaft, and an assembly box is fixedly connected to the outer wall of the processing turntable. In this invention, when the vibration amplitude of the vibrating screen is adjusted by a variable frequency motor to meet the automatic feeding of parts of different sizes, the rotation of the first gear drives the suction fan, which delivers dry gas into the injection pipe and sprays it out through the nozzle. Under the action of a high-speed camera, the feeding trajectory of the parts in the feeding frame is automatically identified and corrected. Simultaneously, with the first gear rotating for an extended period, a temperature sensor automatically controls the opening and closing of the control valve, causing a graphene lubricating film to be sprayed from the lubrication nozzle, achieving a self-lubricating effect on the meshing parts of the gears and improving the accuracy of the circuit breaker assembly position.

The present invention relates to the field of low-voltage electrical appliances, in particular to a calibration method for time-delay characteristics of switch-with-bimetal including the operation of pre-adjusting a tripping travel and executing calibration operation of a tripping point, providing the suitability for automatic operation and having high pass rate and efficiency, as well as a calibration method for time-delay characteristics of relays including operation such as one time pre-adjusting, executing calibration operation of a tripping point and two time pre-adjusting, providing the suitability for automatic operation and having high pass rate and efficiency, and a calibrating device for time-delay characteristics of relays that applies the calibration method for time-delay characteristics of relays, which can realize automatic and fast calibration for time-delay characteristics of relays.

The present invention discloses a special positioning tool for the transmission shaft of a circuit breaker mechanism, which includes a positioning plate, an L-shaped plate I, an L-shaped plate II, a displacement sensor I, a displacement sensor II, an angle encoder I, an angle encoder II and a display controller; the L-shaped plate II is connected to one side of the notch of the positioning plate; the rotating shaft of the angle encoder I passes through the side surface of the L-shaped plate I and is fixed to the bottom surface of the L-shaped plate I; the displacement sensor I is located outside the positioning plate; the fixed end of the displacement sensor II is connected to the rotating shaft of the angle encoder II; the display controller is electrically connected to the angle encoder I and the angle encoder II respectively; the display controller is electrically connected to the displacement sensor I and the displacement sensor II. The present invention can accurately position the transmission shaft of the circuit breaker and measure its offset distance, so as to quickly install and adjust the circuit breaker mechanism of the transmission system, a special positioning tool for the transmission shaft of the circuit breaker mechanism.

The invention relates to the technical field of circuit breakers, and discloses a circuit breaker three-phase column position degree adjusting method, which is characterized in that a centering tool is matched with the top of a three-phase column, a limiting tool is matched with a conductor mounting boss on the side surface of the three-phase column, and then the phase position of the three-phase column is adjusted according to the concircle characteristic of the centering tool, so that the position degree of the three-phase column is adjusted. The center points of the three phase columns are concyclic, and the phase positions of the three phases are adjusted according to the structural characteristics of the limiting tool, so that the planes where the two conductor mounting bosses are located are coplanar and are parallel to the plane where the third conductor mounting boss is located, and the distance between the two planes meets the design requirement, and the position degree adjustment is completed. By means of the centering limiting tool, the position degree adjustment of the three-phase column can be comprehensively achieved, the three-phase column can meet the product design requirement, and the product quality is guaranteed.

The invention discloses an adjusting device and an adjusting method of a circuit breaker spring. The device comprises a spring assembly, a fastening assembly and an adjusting assembly, the spring assembly comprises a first blocking piece, a second blocking piece, a spring and a spring shaft. One end of the spring is connected with the spring shaft through a first separation blade, and the other end is connected with the fastening assembly through a second separation blade; the fastening assembly comprises a spring operation mechanism rack, a first pressure detection module, an acceleration detection module and a fastening module. The fastening module penetrates through the spring operating mechanism rack, and the first pressure detection module is arranged between the fastening module and the second blocking piece. The acceleration detection module is connected with the spring shaft; the adjusting assembly comprises a second pressure detection module, an adjusting module and a positioning module; the adjusting module penetrates through the spring operation mechanism rack and abuts against the second blocking piece. The positioning module is clamped with the adjusting module, and the second pressure detection module is arranged in a clamping gap. According to the scheme, the application scene, the monitoring precision and the working efficiency of the circuit breaker spring adjusting device are improved.

The present invention relates to the field of low-voltage electrics, and particularly relates to a method for verifying the delay characteristics of a double-metal switch, which includes a tripping stroke pre-adjustment operation and a tripping point verification operation; the method for verifying the delay characteristics of the double-metal switch is suitable for automated operation, and has a high verification pass rate and high efficiency. The present invention also relates to a method for verifying the delay characteristics of a relay, which includes operations such as primary pre-adjustment, tripping point verification, and secondary pre-adjustment, is suitable for automated operation, and has a high passing rate during inspection and high efficiency. The present invention further relates to a device for verifying the delay characteristics of a relay applying the method for verifying the delay characteristics of the relay, which realizes the automated and rapid verification of the delay characteristics of the relay.

The present application belongs to the technical field of auxiliary installation tools of porcelain column type circuit breaker, and particularly relates to a method and tool for centering adjustment of static contact of parallel resistance of circuit breaker. The tool for centering adjustment of static contact of parallel resistance of circuit breaker comprises a detection disc used for butting against a flange plate of a porcelain sleeve of the circuit breaker, the detection disc is provided with a detection rod used for extending into the porcelain sleeve, the detection rod is provided with a detection plug used for being inserted into a plug-in hole of a static contact of the circuit breaker, and further comprises a wedge-shaped plug used for entering into a gap between the static contact and the porcelain sleeve to keep the static contact and the porcelain sleeve in centering, the detection disc is provided with an operation hole through which an adjusting rod on the wedge-shaped plug passes, and the operation hole is a rotation-stopping guide hole through which the adjusting rod is guided and rotation-stopped.

A circuit breaker comprising a containment body containing an actuation mechanism operatively associated with electrical protection components; the actuation mechanism is a self-supporting mechanism comprising a thermal assembly having a movable contact, a plaited band, a bimetal, a terminal and a sliding electrode; the self-supporting mechanism further comprises a kinematic assembly with which the movable contact is associated; an actuation handle is connected to the kinematic assembly by means of a crossbar; two side walls provide the containment of all the components of the self-supporting mechanism.

The invention discloses a double-metal adjusting device which comprises a carrier, a workbench, a driving device, a driving device, an adjusting device and an adjusting device, wherein the workbench is provided with a working plane for placing the carrier; the pressing mechanism comprises a first pressing block and a first driving structure, the first pressing block is movably arranged relative to the working plane, the movement direction of the first pressing block and the working plane are obliquely arranged, and the first driving structure drives the first pressing block to move towards the working plane so as to press the surfaces, in at least two different directions, of the arc guide plate; pressing force perpendicular to the working plane and pressing force parallel to the direction of the working plane are generated; the adjusting mechanism comprises an electric device and an adjusting rod, the adjusting rod is rotationally arranged with the first axis as the rotation center, and the electric device is used for driving the adjusting rod to rotate; a driving groove is formed in the end of the adjusting rod, one part of the bimetallic strip is located in the driving groove, and when the driving groove rotates around the first axis, the bimetallic strip is twisted to achieve bimetallic strip adjustment; the bimetal assembly adjusting device has the bimetal assembly adjusting function in the production process.