27results about "Switch lubrication" patented technology

A limit switch includes: a switch main body; and an operation unit connected to the switch main body. The operation unit includes: a housing; a shaft member; and an urging portion. The urging portion includes: an elastic member; a return plunger; and a guide member having higher heat resistance than the housing. The elastic member is stretchable along a center line extending in the second direction and configured to bias the shaft member. The return plunger is positioned between the elastic member and the shaft member in the second direction, movable along the center line, and configured to transmit a biasing force of the elastic member to the shaft member. The guide member is attached to the housing, and configured to accommodate the return plunger inside the guide member and to guide movement of the return plunger.

The application discloses an overload current tripping device of a circuit breaker, which comprises a magnetic conducting frame, a triangular magnetic conducting block, a striking rod, a fixing plate, a compression spring, a position limiting sleeve and a trigger plate; the middle part of the magnetic conducting frame is provided with a rectangular opening for the copper bar of the circuit breaker to pass through; the top middle part of the magnetic conducting frame is provided with an inverted triangular opening for arranging the triangular magnetic conducting block; the fixing plate and the position limiting sleeve are arranged at the top end of the triangular magnetic conducting block and are used for limiting the triangular magnetic conducting block; the top end of the compression spring is fixed at the bottom end of the triangular magnetic conducting block, and the bottom end of the compression spring is fixed on the magnetic conducting frame; the top end of the striking rod is fixed on one side of the triangular magnetic conducting block; the trigger plate is a lever structure, one end of the trigger plate corresponds to the position of the bottom end of the striking rod, and the other end corresponds to the position of the tripping hook of the circuit breaker; the magnetic conducting frame and the triangular magnetic conducting block are made of paramagnetic materials.

The limit switch is provided with a switch main body and an operation part connected with the switch main body. The operation portion includes a housing, a shaft member, and a biasing portion. The biasing part has an elastic member, a return plunger, and a guide member having higher heat resistance than the housing. The elastic member is extendable and retractable along a center line extending in the second direction, and is configured to urge the shaft member. The reset plunger is located between the elastic member and the shaft member in the second direction, is movable along the center line, and is configured to transmit an urging force of the elastic member to the shaft member. The guide member is attached to the housing, and is configured so as to accommodate the return plunger therein and guide the movement of the return plunger.

The invention relates to the technical field of electric power system safety protection, and discloses a friction coupling for a grounding knife-switch and the grounding knife-switch, the friction coupling comprises a fixed seat, an outer rotating shaft and an inner rotating shaft, the outer rotating shaft and the inner rotating shaft are rotatably arranged on the fixed seat, an inner end is arranged at the inner end of the outer rotating shaft, and the inner end is sleeved with an outer friction wheel; the outer friction wheel and the outer rotating shaft are circumferentially clamped and axially connected in a sliding manner; an inner friction wheel is fixedly arranged at the outer end of the inner rotating shaft; an elastic piece is further arranged between the outer rotating shaft and the outer friction wheel, the friction surface of the outer friction wheel and the friction surface of the inner friction wheel are of a multi-stage stepped contact structure, the friction surface of the outer friction wheel is divided into at least two stages of annular areas with different curvature radiuses, and the friction surface of the inner friction wheel is correspondingly arranged; by means of the design, after the disconnecting link plate is in place, the disconnecting link plate slips due to structure limiting, power transmission is automatically cut off, equipment is protected against overload damage, meanwhile, segmented friction force adjustment under different loads is achieved, the transmission efficiency is improved, and accurate control over a plurality of components is achieved through one driving source.

The invention discloses a modularized vacuum circuit breaker which comprises an operation box, a base and a plurality of vacuum arc-extinguishing chambers, the base is connected to the rear of the operation box, and the vacuum arc-extinguishing chambers are mounted on the base in a linear manner; a connecting rod mechanism in the base comprises L-shaped lever frames, one L-shaped lever frame is hinged right below each vacuum arc-extinguishing chamber, all the L-shaped lever frames are linked through a synchronous frame, and the L-shaped lever frame close to the operation box is connected with an operation mechanism in the operation box; comprising a lubricating mechanism, the lubricating mechanism comprises a sealed oil storage cavity located at the bottom of a base and a manual booster pump, the tail end of a pump body and the tail end of a piston rod of the manual booster pump are hinged to the base and a synchronous frame respectively, and the synchronous frame reciprocates to drive the piston rod to stretch out and draw back synchronously. According to the invention, the lubricating mechanism is added, and the lubricating mechanism is not provided with electronic parts, is not influenced by high ionization and high static environment, can lubricate the connecting rod mechanism for a long time, and reduces the fault rate of the modular vacuum circuit breaker.

This invention belongs to the field of electrical switch technology and discloses a self-lubricating mechanism for the contacts of a frame circuit breaker. The mechanism includes a frame circuit breaker body, within which a moving contact group is fixedly installed. During rotation, the moving contact group can contact and separate from the stationary contacts, thereby controlling the on / off state of the circuit in the frame circuit breaker. A moving contact support plate is fixedly installed on the moving contact group, and a rotating shaft is fixedly installed within the moving contact group. This invention utilizes a shaft seal lubrication assembly on the outside of the rotating shaft. The rotational energy of the shaft during the opening and closing swing of the moving contact group drives a spiral blade to synchronously push grease, ensuring continuous and uniform penetration of the grease into the hinged joint surface between the rotating shaft and the moving contact support plate. This achieves automatic and long-term lubrication of the shaft hinge, effectively solving the problems of high rotational resistance, mechanism jamming, and accelerated wear caused by long-term dry friction of the rotating shaft in existing technologies. It significantly reduces the frictional loss during the swing of the moving contact group, ensuring smooth and stable opening and closing operation of the moving contact group.

The present invention discloses a protection structure for preventing misoperation, which relates to the technical field of protection structures. The present invention includes a hanging plate, a U-shaped frame is fixed on the right side of the front surface of the hanging plate, a first semi-circular block is rotatably installed at the top of the inner wall of the U-shaped frame, a compression spring is fixed on the side of the first semi-circular block away from the U-shaped frame, a second semi-circular block is fixed at the end of the compression spring away from the first semi-circular block, an L-shaped plate is fixed on the back surface of the second semi-circular block, a servo motor is fixedly installed on the front surface of the inner wall of the L-shaped plate, the rotating shaft of the servo motor penetrates and is rotatably installed on the back surface of the hanging plate, the rotating shaft of the servo motor penetrates and is fixed on the back surface of the second semi-circular block, and a shaft plate is rotatably installed through the front surface of the hanging plate. By pulling the second semi-circular block with the compression spring, the rotating shaft of the servo motor is reset by the second semi-circular block, thereby avoiding the problem that the operator touches the exposed cable of the power equipment and is prone to electric shock when opening the switch.

Relay, including: a first fixed connection (13); a first fixed contact (21) connected to the first fixed terminal (13); a second fixed connection (14); a second fixed contact (22) connected to the second fixed terminal (14); a first movable contact piece (15); a first movable contact (31) connected to the first movable contact piece (15) and facing the first fixed contact (21); a second movable contact (32) connected to the first movable contact piece (15) and facing the second fixed contact (22); a movable member (17) connected to the first movable contact piece (15) so as to be movable in a contact direction in which the first movable contact (31) comes into contact with the first fixed contact (21) and a separation direction in which the first movable contact (31) separates from the first fixed contact (21); and a drive device (4) comprising: a coil body (62), a winding (61) wound around the coil body (62), a movable iron core (63) connected to the movable element (17), a fixed iron core (64) arranged to face the movable iron core (63) within the coil body (62), and a guide element (65) arranged in the coil body (62) and designed to at least partially receive the movable iron core (63), wherein the drive device (4) is designed to move the first movable contact piece (15) by means of the movable iron core (63) which moves in response to the magnetic force generated by the winding (61), wherein the guide element (65) contains: a guide part (651) designed to guide the movement of the movable iron core (63), and a clearance part (652) having a larger inner diameter than an inner diameter of the guide part (651) and configured to reduce interference between the guide part (651) and an outer end part of the movable iron core (63) on the contact direction side when the movable iron core (63) moves.

The utility model relates to the technical field of mechanical keyboards, in particular to a mechanical keyboard satellite shaft dragon bean oiling structure, which solves the technical problem that an existing mechanical keyboard satellite shaft dragon bean is inconvenient to oil in the production process, and comprises a shaft sleeve, a dragon bean is arranged in the shaft sleeve, and a steel wire is connected in the shaft sleeve. The steel wire is connected with the dragon beans, and an oil beating assembly is arranged on the outer surfaces of the dragon beans and used for beating oil into the dragon beans; by changing the structure of the dragon bean, adding a # imgabs0 oil injection hole below the dragon bean and aligning a needle head to the oil injection hole, lubricating oil can be injected into the dragon bean through the oil injection hole, so that the purpose of oil injection is achieved, oil injection steps are reduced, the oil injection convenience is improved, meanwhile, the production efficiency of the mechanical keyboard satellite shaft can be improved, and the production cost of the mechanical keyboard satellite shaft is reduced. Reasonable oiling work can reduce friction and abrasion of the mechanical keyboard satellite shaft, noise is improved, and the mechanical keyboard satellite shaft is suitable for high-speed and high-precision mechanical keyboard satellite shafts.

The utility model relates to the technical field of vacuum circuit breakers, in particular to a transmission assembly of an outdoor vacuum circuit breaker, which comprises a frame and a connecting rod, a rotating shaft is rotatably connected in the frame, a plurality of crank arms are fixedly connected on the outer wall of the rotating shaft, and one end of each crank arm is rotatably connected with an insulating pull rod through a shaft rod. According to the utility model, each movable roller is arranged, so that the rotation of the rotating shaft is smoother and more stable, a worker can conveniently lubricate the rotating shaft, the working efficiency is improved, and the working efficiency is improved. And the telescopic push rod is arranged to be matched with the limiting block and the like, so that the stability of the closing head clamped at the upper end of the insulator can be improved, and the situation that the closing head is loosened and the closing operation is influenced is avoided.

The invention discloses a standardized high-voltage fuse, and relates to the technical field of power devices, the standardized high-voltage fuse comprises an insulator, the top end of the insulator is provided with a top seat, the bottom end of the insulator is provided with a base, one end of the base is fixedly connected with two rotating seats, a rotating shaft is rotatably connected between the two rotating seats, and the rotating shaft is fixedly connected with the top end of the insulator. According to the standardized high-voltage fuse, through the arrangement of the positioning seat, the storage column and the convex column, the positions of the fuse tubes can be limited through the convex column and the round end column during closing, and the fuse tubes can be fixed through the clamping seat, so that the safety of the fuse tubes is improved, and the safety of the fuse tubes is improved. The condition that the fuse tube is pulled open again to generate an electric arc when one end of the brake pull-rod is not moved out of the interior of the driving hole, namely the brake pull-rod is taken back is prevented, the brake pull-rod can be taken back only by moving one end of the brake pull-rod out of the interior of the driving hole, limiting of the fuse tube is relieved, and the fusing function of the high-voltage fuse is not hindered.

The invention relates to the technical field of circuit breaker clutch mechanisms, and discloses a clutch mechanism for a circuit breaker electric operating mechanism, which comprises a bottom plate, a shell is fixedly connected to the top of the bottom plate, a circuit assembly is fixedly connected to the rear end surface of the shell, a driving chamber is arranged in the shell, and two storage chambers are arranged. The control assemblies are symmetrically and fixedly connected to the two sides of the inner wall of the top side of the shell respectively, the control assemblies are fixedly connected to the interior of the shell, a gate is rotationally connected to the middle of each control assembly, the gates are electrically connected with the circuit assemblies, and lock catches are fixedly connected to the interiors of the control assemblies; and the two rotating rods are rotationally connected to the inner wall of one side of the support, a rotating driving assembly is fixedly connected to the inner wall of the other side of the support, the rotating driving assembly is specifically a driving motor, and the device has the advantages that the maintenance effect of the device is improved, and the device is convenient to use by a user.

The utility model provides a wear-resistant electrical control travel switch, which relates to the technical field of travel switches and comprises a travel switch body, the travel switch body comprises a back plate, a switch chamber is arranged on the surface of the back plate, a driving chamber is arranged above the switch chamber, the driving chamber and the back plate are fixed, and the driving chamber is arranged above the switch chamber. A rotating shaft is rotatably installed on the driving chamber, a swing arm is installed on the surface of the rotating shaft, the rotating shaft rotates to enable a connecting rod of the driving chamber to move in the vertical direction, then the connecting rod drives a contact in the switch chamber to be switched, and a lubricating component is arranged between the rotating shaft and the driving chamber. According to the utility model, when the swing arm is in a normal state (namely, the swing arm is in a vertical state), a user can hold the lubricating oil pot to extrude lubricating oil from the oil injection nozzle to the lubricating component, and the lubricating oil lubricates the rotating shaft and the driving chamber along the lubricating component, thereby reducing the abrasion of the rotating shaft and prolonging the service life of the switch.

A mechanism for an electrical device, including a plurality of metal parts which are not arranged for conducting an electrical current of which a first part includes a first contact surface and a second part includes a second contact surface arranged to move in relation to, and in contact with, the first contact surface. At least one of the first and second parts includes a Graphene and Related Materials (GRM) at its contact surface, in a metal-GRM composite.

The utility model relates to a novel ignition switch which comprises a shell, a lock body, a lock cylinder, a lock cylinder linkage sleeve, a gear seat, a lifting pin seat and an electric seat, the lock body is fixedly connected to the upper side of the shell, the lock cylinder is arranged in the lock body in a matched mode, the lower end of the lock cylinder is connected with the lock cylinder linkage sleeve, and the gear seat is arranged on the lower side of the lock cylinder linkage sleeve in a matched mode. The lifting pin seat is rotatably arranged on the lower side of the gear seat, the electrical seat is fixed on the lower side of the lifting pin seat, a plurality of connecting terminals are arranged on the electrical seat, a plurality of guide connecting pieces used for abutting against the contact pieces of the different connecting terminals are further arranged on the electrical seat, and the guide connecting pieces are located on the lower sides of the contact pieces. The electrical base is provided with a spring used for abutting against the guide connecting piece upwards on the lower side of the guide connecting piece, the upper end of the guide connecting piece is fixedly connected with a lifting pin, the lifting pin penetrates out of the electrical base and is in up-down sliding fit with a lifting pin base, the upper end of the lifting pin penetrates out of the lifting pin base and abuts against the gear base, and a plurality of lifting pin grooves are formed in the lower end face of the gear base. The device is compact in structure, small in size and stable and reliable to use.

Switch (1), comprising: a housing (10) having a box shape and an opening surface (11); a pressure piece (50) configured to be movable along a first direction (A) intersecting the opening surface (11); and a movable part (40) arranged within the housing (10) and configured to be elastically deformable in a second direction (B) intersecting the first direction (A), wherein the pressure piece (50) comprises a contacting portion (52) arranged to oppose the movable part (40) in the second direction (B) within the housing (10) and configured to elastically deform the movable part (40) in the second direction (B) by contacting the movable part (40), wherein the pressure piece (50) is arranged to be movable between a first position in which the contacting portion (52) contacts the movable part (40) along the first direction (A) to elastically deform the movable part (40) in the second direction (B), and a second position different from the first position, and wherein a lubricant retaining portion (526, 527, 528, 461, 55, 56) configured to retain a lubricant is provided in at least one of the contacting portion (52) of the pressure piece (50) and a contacted portion (46) of the movable part (40) contacted by the contacting portion (52), characterized in that the contacting portion (52) comprises: a projection (521) extending along the first direction (A) and having a projecting shape projecting in the second direction (B) and in a direction approaching the movable portion (42) and configured to contact the contacted portion (46) between the first position and the second position; and a projecting portion (522) provided at an intermediate portion of the projection (521) in the first direction (A) so as to project from the projection (521) in the second direction (B) and in the direction approaching the movable portion (42), and with which the pressing piece (50) presses and contacts the contacted portion (46) between the first position and the second position, and wherein the lubricant retaining portion (526, 527, 528, 461, 55, 56) comprises at least a first retaining portion (526) arranged on a surface of one side in the first direction (A) of the projecting portion (522) of the projection (521), and a second retaining portion (527) arranged on a surface of another side in the first direction (A) of the projecting portion (522) of the projection (521).

The invention discloses a high-wear-resistance alloy part of a hydraulic spring operating mechanism. The high-wear-resistance alloy part comprises a high-wear-resistance alloy energy storage piston cylinder and a high-wear-resistance alloy working cylinder. Meanwhile, the invention discloses a wear-resistant alloy for the key component of the hydraulic spring operating mechanism and a preparation method of the high-wear-resistant alloy component of the hydraulic spring operating mechanism. The high-wear-resistance alloy energy storage cylinder and the high-wear-resistance alloy working cylinder have six advantages that 1, the mechanical strength is improved; 2, high wear resistance; 3, the self-lubricating property is realized; 4, the thermal expansion coefficient is basically consistent with that of the piston rod; 5, an excellent vibration absorption function is achieved; and 6, the manufacturing process of key parts is greatly simplified.

The present disclosure relates to a mechanism comprising a plurality of components, a first of which comprises a first contact surface and a second of which comprises a second contact surface arranged to contact and move relative to the first contact surface. The first contact surface is provided by a multilayer coating (4) directly on a surface (5) of a metal substrate of the first component. The multilayer coating comprises a base layer arrangement (43) arranged directly on the surface of the substrate, a composite layer (41) arranged on top of the base layer arrangement, and a metal top layer (42) arranged directly on top of the composite layer, the composite layer being comprised of particles (7) of graphene and related materials, GRM materials, in a metal matrix (8).

The utility model relates to an anti-clamping stagnation rib groove cooperation button switch, comprising a housing and a circuit board fixed in the inner cavity of the housing, the top of the circuit board is electrically connected with a microswitch, the inner cavity of the housing is slidably connected with a slide block used for pressing the microswitch, the top of the slide block is fixedly connected with a button, and the button is fixedly connected with a button. The utility model relates to the technical field of key switches. According to the anti-clamping rib and groove matched key switch, the V-shaped groove is additionally formed in the sliding block, the matching area of the sliding block and the shell rib is reduced, so that friction force is reduced, the hand feeling of the switch is improved, meanwhile, tiny foreign matter falls into the V-shaped groove and is adsorbed into grease, and the clamping risk is reduced; grease can be stored in the V-shaped groove, the long-term switch lubrication effect is achieved, and the service life of the switch is prolonged; the V-shaped groove is additionally arranged on the sliding block, a long straight surface is changed into a small section, the size change is extremely small due to the influence of an injection molding process and weather, the clamping stagnation risk is reduced, meanwhile, the contact surface is reduced, the deformation points of the groove are also greatly reduced, and the clamping stagnation risk of the button caused by the size change is reduced.

An object is to achieve an improved service life of a cover. A switch (100) includes a case (8) that includes an opening (80), a cover (91) that covers the opening (80), the cover being made of an elastomer and being formed to bulge outward of the case (8), a push rod (11) that projects from inside of the case (8) to proceed into the cover (91) from the opening (80), the push rod movably disposed to proceed into the cover (91) from the opening (80) and to retreat toward the opening (80) from inside of the cover (91), a biasing portion (2) that biases the push rod (11) in a direction of proceeding into the cover (91) from the opening (80), a fixing contact piece (5) disposed in the case (8), a movable contact piece (4) that moves with the push rod (11) to contact and separate from the fixing contact piece (5), and a slide contact member (6) disposed on an inner surface of the cover (8), the slide contact member contacting a tip end of the push rod (11).

Provided is a rotary electric component in which the operation sensation is maintained over a long period. This rotary electric component comprises an operation part that is rotationally operated, a housing part that has an accommodation part with a corrugated part formed on a peripheral wall surface of the accommodation part; a rotary body that is accommodated in the accommodation part and connected to the operation part, and that is positioned so as to rotate along the peripheral wall surface in response to the rotation of the operation part; an impelling part that impels toward the peripheral wall surface; and a rotary piece that is positioned in the rotary body so as to be impelled by the impelling part and to abut the peripheral wall surface, rotates according to the rotation of the rotary body while moving along the peripheral wall surface, and has a recessed part that is for holding a lubricant and is formed in a facing surface facing the peripheral wall surface.

The utility model relates to the technical field of frequency converter switches, and discloses a locking rod device for a frequency converter switch, which comprises an operating handle and a frequency converter switch body horn mouth arranged on one side of the operating handle, a locking component is arranged on one side of the frequency converter switch body horn mouth, and a lock head is arranged on one side of the locking component. One end of the locking rod body is connected with the mounting block through the connecting piece, so that the locking rod body can be rotationally connected to the mounting block, a constructor clamps the locking rod head on the outer side of the operating handle after power failure, then locking is achieved through the lock head, and other constructors can clearly find that someone is constructing and power transmission is forbidden during operation; the safety protection of constructors in the power failure period is improved, the risk of safety accidents caused by mistaken power transmission is reduced, lubricating oil can enter holes, rotationally connected with the locking rod body and the mounting block, of the connecting block through the oil inlet channel and the flow dividing channel, and the lubricating purpose can be effectively achieved.

The present disclosure relates to a metal drive (1) for operating an electrical switch of a switchgear (10). The drive comprises at least a fist part (2a) and a second part (2b), the first part comprising a first contact surface (3a) arranged to move in relation to, and in contact with, a second contact surface (3b) of the second part. The first contact surface has a dry lubricant polymer coating (5) of a polymer material (6) applied directly on a metallic material (7).

The utility model provides a wall switch, which comprises a moving contact, a static contact, a button and a shell for accommodating the moving contact, the static contact and the button, the button is rotatably arranged, one end of the button facing the moving contact is provided with a groove, an elastic piece is arranged in the groove, one end of the elastic piece is connected with one end of a swing rod, and the other end of the swing rod is connected with a switch. The other end of the swing rod is a driving part which is in sliding fit with the moving contact, and the driving part of the swing rod is provided with a graphene layer which is used for driving the moving contact to swing around the fulcrum to be in contact with or disconnected from the static contact. According to the wall switch provided by the utility model, the graphene layer is arranged at one end of the swing rod, the material structure is more reasonable, the wall switch is better in use hand feeling, safer in use, good in conductivity and more reliable in on-off, and meanwhile, the button, the elastic piece and the swing rod are fixedly installed into a whole, so that the structure is more compact and the stability is higher.