CN114783797B - Permanent magnet circuit breaker manual separation device - Google Patents
Permanent magnet circuit breaker manual separation device Download PDFInfo
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- CN114783797B CN114783797B CN202210389261.1A CN202210389261A CN114783797B CN 114783797 B CN114783797 B CN 114783797B CN 202210389261 A CN202210389261 A CN 202210389261A CN 114783797 B CN114783797 B CN 114783797B
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- separating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a hand-separating device of a permanent magnet circuit breaker, which comprises a frame, an auxiliary switch, a hand-separating rod piece and an output shaft, wherein one end of the hand-separating rod piece is in linkage connection with the output shaft through a linkage mechanism, and the other end of the hand-separating rod piece is connected with the output shaft and the auxiliary switch through a linkage mechanism; the linkage mechanism comprises a hand-separating crank arm, a hand-separating connecting plate, a separating and closing crank arm, an auxiliary crank arm and an elastic pressing component, wherein the hand-separating crank arm is arranged on a hand-separating rod piece, the separating and closing crank arm is arranged on an output shaft, a first connecting part, a second connecting part and a third connecting part are arranged on the separating and closing crank arm, one end of the hand-separating connecting plate is hinged with the hand-separating crank arm, the other end of the hand-separating connecting plate is hinged with the first connecting part, the auxiliary crank arm is arranged on the auxiliary switch, the second connecting part is connected with the auxiliary crank arm, a limiting mechanism is arranged on the rack, the elastic pressing component is movably connected onto the rack, and the elastic pressing component is connected with the third connecting part. The invention can ensure normal switching of the opening and closing of the auxiliary switch and has good use reliability.
Description
Technical Field
The invention belongs to the technical field of electrical equipment, and particularly relates to a permanent magnet breaker hand-operated device.
Background
Under the current development background, the permanent magnet mechanism has the advantages of simple structure and long service life, so that the permanent magnet mechanism can be widely used in a power grid, the matched permanent magnet circuit breaker manual switching device is also various, and when the permanent magnet circuit breaker manual switching device in the market is manually operated, the auxiliary switch is abnormal in switching on and off due to smaller operation rotation angle, so that the use reliability is poor.
Disclosure of Invention
The invention aims to provide a manual switching device of a permanent magnet circuit breaker, which can ensure normal switching of switching on and off of an auxiliary switch and has good use reliability.
In order to achieve the above purpose, the present invention provides the following technical solutions: the permanent magnet breaker hand-separation device comprises a frame, an auxiliary switch, a hand-separation rod piece and an output shaft, wherein the auxiliary switch is arranged on the frame, the hand-separation rod piece and the output shaft are rotatably arranged on the frame, one end of the hand-separation rod piece is in linkage connection with the output shaft through a linkage mechanism, the other end of the hand-separation rod piece is connected with the output shaft and the auxiliary switch through a linkage mechanism, and one end of the output shaft is provided with a movable fit; the linkage mechanism comprises a hand crank arm, a hand connecting plate, a hand crank arm, an auxiliary crank arm and an elastic compression assembly, wherein the hand crank arm is installed on a hand rod in a linkage mode, the hand crank arm is installed on an output shaft in a linkage mode, a first connecting portion, a second connecting portion and a third connecting portion are arranged on the hand crank arm in a linkage mode, one end of the hand connecting plate is hinged to the hand crank arm, the other end of the hand connecting plate is hinged to the first connecting portion, the auxiliary crank arm is installed on an auxiliary switch, the second connecting portion is movably connected with the auxiliary crank arm, a limiting mechanism limiting the stroke of the second connecting portion is formed in the position, located above the second connecting portion, of the frame, the elastic compression assembly is movably connected to the frame, the elastic compression assembly is connected with the third connecting portion, and acts on the third connecting portion to enable the second connecting portion to be pressed on the corresponding limiting mechanism.
Through adopting above-mentioned technical scheme, set up a pair of stop gear in the frame and be used for the stroke spacing of closing the turning arm, when the second connecting portion of closing the turning arm of opening and closing supports on upper portion stop gear or lower part stop gear, realize auxiliary switch's combined floodgate or closing the floodgate, simultaneously, add elasticity hold-down assembly, make the second connecting portion of closing the turning arm of opening and closing can tightly support on upper portion stop gear or tightly support on lower part stop gear to guarantee auxiliary switch's divide-shut brake normal switch, have the advantage that the reliability of use is good.
The elastic pressing assembly comprises a spring crank arm, a spring guide plate and a pushing spring, wherein the spring crank arm is mounted on an output shaft in a linkage manner, the spring crank arm is connected with a third connecting part on the opening and closing crank arm through a pin shaft, two insertion holes are formed in the bottom of the frame, a supporting beam is formed between the two insertion holes, one end of the spring guide plate is rotatably connected to the pin shaft, a first U-shaped inserting part is arranged at the other end of the spring guide plate, the first U-shaped inserting part is in rotary fit with the supporting beam, and the pushing spring is sleeved on the periphery of the spring guide plate and is used for applying spring force to the third connecting part.
Through adopting above-mentioned technical scheme, can provide and divide and close a thrust of turning arm one, make the second connecting portion of dividing the turning arm can tightly support on corresponding stop gear.
The invention is further arranged that a first limit convex part is arranged at the upper part of the spring guide plate, the upper end of the pushing spring is propped against the first limit convex part, and the lower end of the pushing spring is propped against the supporting beam; and a pair of second limit convex parts which are used for propping against the side parts of the first U-shaped plug-in part are respectively arranged on the support beam at the positions of the two sides of the first U-shaped plug-in part.
Through adopting above-mentioned technical scheme, can promote the steadiness of spring deflector installation, and then guarantee the stable output of pushing away the spring.
The invention is further characterized in that the rack is provided with a one-way bearing, the hand-split rod piece comprises a hand-split operation shaft, a first shaft sleeve and a hand-split optical axis, the hand-split optical axis is matched with the one-way bearing, one end of the hand-split optical axis is in linkage connection with the hand-split operation shaft through the first shaft sleeve, and the hand-split crank arm is arranged on the hand-split optical axis.
Through adopting above-mentioned technical scheme for hand branch member can only unidirectional rotation, can only rotate towards the separating brake direction promptly, avoided because of the maloperation, manual messenger circuit breaker closing a floodgate causes power failure.
The invention further provides an L-shaped fixing plate, one end of the L-shaped fixing plate is provided with a mounting part, the mounting part is connected to the frame through a screw, the other end of the mounting part is provided with a plug convex part, the top of the frame is provided with a plug port matched with the plug convex part, the L-shaped fixing plate is provided with a round hole, and the end part of the manual optical axis is provided with a rotating part matched with the round hole.
By adopting the technical scheme, the hand-dividing rod piece can be supported, and the working stability of the hand-dividing rod piece is improved.
The invention is further characterized in that the hand-divided crank arm is in a fan shape, an arc-shaped guide hole is formed in the hand-divided crank arm near the arc-shaped edge, a positioning hole is formed in the L-shaped fixing plate, and a limit pin is inserted into the frame and penetrates through the arc-shaped guide hole and is matched with the positioning hole.
By adopting the technical scheme, the hand-operated crank arm can be guided, and the accuracy of opening and closing operation is improved.
The invention further provides that the interlocking mechanism comprises a hand-separating bracket, a supporting plate, an interlocking sliding plate and an interlocking crank arm, wherein the hand-separating bracket is arranged on the frame through screws, a through hole for a hand-separating operation shaft to pass through is formed in the hand-separating bracket, the supporting plate is arranged on the hand-separating bracket through screws, two guide screws are transversely arranged on the supporting plate along the transverse direction, two travel holes and a lock hole corresponding to the through hole are transversely arranged on the interlocking sliding plate along the transverse direction, the interlocking sliding plate is abutted to the front part of the supporting plate through the corresponding travel holes by the guide screws, the interlocking sliding plate slides along the extending direction of the travel holes, one end of the interlocking crank arm is connected with an output shaft in a linkage manner through screws, the other end of the interlocking crank arm is hinged with the interlocking sliding plate, a separation and combination indicating plate is arranged on the interlocking sliding plate, and a counter is arranged at a position above the separation and combination indicating plate on the supporting plate.
Through adopting above-mentioned technical scheme, can realize dividing the closing instruction, divide the instruction board to keep off the hand and divide the operating shaft outer end simultaneously when hand branch member reaches the closing position, not only be convenient for operating personnel to judge, can prevent the emergence of maloperation moreover.
The invention further provides a closing pawl tension spring and a fixing bolt, wherein the fixing bolt is arranged on the frame, a connecting hole is formed in the hand-split crank arm, one end of the closing pawl tension spring is lapped on the fixing bolt, and the other end of the closing pawl tension spring is in plug-in fit with the connecting hole.
Through adopting above-mentioned technical scheme, the sincere son extension spring of closing a floodgate is through the output spring force to the hand branch turning arm after the manual brake-separating action to make the hand branch member reset.
The limiting mechanism further comprises a limiting screw and a locking nut, wherein the limiting screw is in threaded connection with the frame, the screw rod part of the limiting screw and the second connecting part form limiting fit, the locking nut is in threaded connection with the screw rod part of the limiting screw, and the inner end of the locking nut is in contact with the frame.
Through adopting above-mentioned technical scheme, can carry out the stroke spacing to the branch turning arm, guarantee that auxiliary switch's combined floodgate separating brake can effectively switch.
The invention further provides that the limiting mechanism further comprises a speed reducing assembly, the speed reducing assembly comprises a U-shaped sliding seat, a cylindrical magnet, a mounting sleeve, a first compression nut and a coil, the second connecting part is provided with a strip-shaped guide hole, the U-shaped sliding seat is sleeved on the edge of the second connecting part and slides along the extending direction of the strip-shaped guide hole, a locking screw penetrates through the strip-shaped guide hole, the screw rod part of the locking screw is connected with the second compression nut in a threaded manner, when the second compression nut is screwed, the U-shaped sliding seat is locked on the third connecting part, one end of the U-shaped sliding seat, which is close to the corresponding limiting screw, is provided with a mounting groove, and one end of the cylindrical magnet is embedded in the mounting groove; the installation sleeve is sleeved on the screw rod portion of the limit screw, the first compression nut is in threaded connection with the screw rod portion of the limit screw and is used for compressing the installation sleeve on the lock nut, a gasket is arranged between the installation sleeve and the lock nut and between the installation sleeve and the first compression nut respectively, a butt joint portion is arranged on one side of the installation sleeve, facing the second connecting portion, of the installation sleeve, a cylindrical channel extending into the butt joint portion by a corresponding cylindrical magnet is axially formed in the center of the butt joint portion, the diameter of the cylindrical channel is larger than that of the cylindrical magnet, an annular groove coaxial with the cylindrical channel is formed in the butt joint portion, the coil is embedded in the annular groove, a silica gel buffer block is coaxially arranged at the inner end of the cylindrical channel, and a hemispherical negative pressure groove is formed in the outer end of the silica gel buffer block.
Through adopting above-mentioned technical scheme, can reduce speed when the second connecting portion of branch close turning arm contacts corresponding stop gear, when the cylindricality magnet on the second connecting portion enters into the cylindricality passageway of butt joint portion promptly, receive the effect of electric coil and reduce speed to avoid second connecting portion striking limit screw, lead to the part to damage or receive reverse impact force and rebound, the silica gel buffer block plays further cushioning effect, when cylindricality magnet supports on the silica gel buffer block, hemisphere negative pressure recess forms the negative pressure, thereby form the tiny adsorption affinity to cylindricality magnet, further guaranteed auxiliary switch's divide-shut brake normal switch.
The invention is further characterized in that the auxiliary crank arm is provided with a second U-shaped plug-in connection part, and the second connection part is provided with a connection pin matched with the second U-shaped plug-in connection part.
Through adopting above-mentioned technical scheme, can realize supplementary turning arm and the effective linkage between the turning arm that opens and shuts, and linkage simple structure, the dismouting is very convenient, does benefit to the maintenance operation in earlier stage equipment and later stage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the elastic pressing assembly of the present invention;
FIG. 3 is a schematic view of the elastic compression assembly of the present invention with the ejector spring removed;
FIG. 4 is a schematic diagram of the cooperation structure of the hand-separated rod and the unidirectional bearing of the present invention;
fig. 5 is a schematic diagram of a matching structure of a closing latch tension spring and a hand-opening crank arm;
FIG. 6 is a schematic diagram of the interlocking mechanism of the present invention;
FIG. 7 is a schematic diagram of a fitting structure of the limiting mechanism and the third connecting portion of the present invention;
FIG. 8 is a schematic view of a first portion of the mounting structure of the reduction assembly of the present invention;
fig. 9 is a schematic view of a second portion mounting structure of the reduction assembly of the present invention.
In the figure: 1. a frame; 2. an auxiliary switch; 3. a rod piece is separated by hand; 4. an output shaft; 5. a linkage mechanism; 6. a linkage mechanism; 7. performing movable fit; 8. a hand-separating crank arm; 9. a hand connecting plate; 10. a split crank arm; 11. an auxiliary crank arm; 12. an elastic compression assembly; 13. a first connection portion; 14. a second connecting portion; 15. a third connecting portion; 16. a limiting mechanism; 17. a spring crank arm; 18. a spring guide plate; 19. a pushing spring; 20. a pin shaft; 21. a jack; 22. a support beam; 23. a first U-shaped plug-in portion; 24. a first limit protrusion; 25. a second limit protrusion; 26. a one-way bearing; 27. a manual operation shaft; 28. a first sleeve; 29. an optical axis is divided by hand; 30. an L-shaped fixing plate; 31. a mounting part; 32. a plug-in convex part; 33. an interface; 34. a round hole; 35. a rotating part; 36. an arc-shaped guide hole; 37. positioning holes; 38. limit pins; 39. a hand-separating bracket; 40. a support plate; 41. an interlocking slide plate; 42. an interlocking crank arm; 43. a via hole; 44. a guide screw; 45. a travel hole; 46. a lock hole; 47. an opening/closing indication board; 48. a counter; 49. a closing latch tension spring; 50. a fixing bolt; 51. a connection hole; 52. a limit screw; 53. a lock nut; 54. a second U-shaped plug-in part; 55. a connecting pin; 56. a deceleration assembly; 57. a U-shaped slide; 58. a cylindrical magnet; 59. a mounting sleeve; 60. a first compression nut; 61. a coil; 62. a strip-shaped guide hole; 63. locking a screw; 64. a second compression nut; 65. a mounting groove; 66. a gasket; 67. a butt joint part; 68. a cylindrical passage; 69. an annular groove; 70. a silica gel buffer block; 71. hemispherical negative pressure grooves.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples: the manual separation device of the permanent magnet circuit breaker comprises a frame 1, an auxiliary switch 2, a manual separation rod 3 and an output shaft 4, wherein the frame 1 is of a -shaped structure, the auxiliary switch 2 is arranged on the frame 1, the manual separation rod 3 and the output shaft 4 are rotatably arranged on the frame 1, one end of the manual separation rod 3 is in linkage connection with the output shaft 4 through a linkage mechanism 5, the other end of the manual separation rod 3 is connected with the output shaft 4 and the auxiliary switch 2 through a linkage mechanism 6, and one end of the output shaft 4 is provided with a movable fit 7; the linkage mechanism 6 comprises a hand crank 8, a hand connecting plate 9, a split crank 10, an auxiliary crank 11 and an elastic compression assembly 12, wherein the hand crank 8 is arranged on the hand rod 3 in a linkage mode, the split crank 10 is arranged on the output shaft 4 in a linkage mode, a first connecting part 13, a second connecting part 14 and a third connecting part 15 are arranged on the split crank 10, one end of the hand connecting plate 9 is hinged with the hand crank 8 through a linkage shaft pin, the other end of the hand connecting plate 9 is hinged with the first connecting part 13 through a linkage shaft pin, the auxiliary crank 11 is arranged on the auxiliary switch 2, the second connecting part 14 is movably connected with the auxiliary crank 11, a limiting mechanism 16 for limiting the stroke of the second connecting part 14 is arranged at the position above and below the second connecting part 14 on the frame 1 respectively, the elastic compression assembly 12 is movably connected to the frame 1, the elastic compression assembly 12 is connected with the third connecting part 15, and the other end of the hand connecting plate 9 is hinged with the first connecting part 13 through the linkage shaft pin, and the auxiliary crank 11 is arranged on the auxiliary switch 2, and the second connecting part 14 is movably connected with the second connecting part 14, and the limiting mechanism 16 is correspondingly forced to the third connecting part 15. The machine frame 1 is provided with a pair of limiting mechanisms 16 for limiting the travel of the opening and closing crank arms 10, when the second connecting portions 14 of the opening and closing crank arms 10 are propped against the upper limiting mechanisms 16 or the lower limiting mechanisms 16, the auxiliary switch 2 is switched on or off, meanwhile, the elastic pressing assemblies 12 are additionally arranged, the second connecting portions 14 of the opening and closing crank arms 10 are enabled to be tightly propped against the upper limiting mechanisms 16 or the lower limiting mechanisms 16, and accordingly normal switching of opening and closing of the auxiliary switch 2 is guaranteed, and the machine frame has the advantage of being good in use reliability.
As shown in fig. 2 and fig. 3, the elastic pressing assembly 12 includes a spring crank arm 17, a spring guide plate 18, and a pushing spring 19, where the spring crank arm 17 is mounted on the output shaft 4 in a linkage manner, the spring crank arm 17 is connected with a third connection portion 15 on the split crank arm 10 through a pin shaft 20, two insertion holes 21 are provided at the bottom of the frame 1, a support beam 22 is formed between the two insertion holes 21, one end of the spring guide plate 18 is rotatably connected to the pin shaft 20, a first U-shaped insertion portion 23 is integrally provided at the other end of the spring guide plate 18, the first U-shaped insertion portion 23 is rotatably fitted with the support beam 22, that is, the support beam 22 is disposed in the first U-shaped insertion portion 23 and is rotatable relative to the first U-shaped insertion portion, and the pushing spring 19 is sleeved on the outer periphery of the spring guide plate 18 to apply a spring force to the third connection portion 15. This design provides a stable pushing force to the split lever 10, so that the second connecting portion 14 of the split lever can be tightly abutted against the corresponding stopper 16.
As shown in fig. 3, a first limit protrusion 24 is provided at the upper part of the spring guide plate 18, the upper end of the pushing spring 19 abuts against the first limit protrusion 24, and the lower end of the pushing spring 19 abuts against the support beam 22; the support beam 22 is provided with a pair of second limiting protrusions 25 for abutting against the side portions of the first U-shaped plug-in portion 23 at positions on two sides of the first U-shaped plug-in portion 23. The design can promote the stability of spring deflector 18 installation, and then guarantees the stable output of pushing spring 19.
As shown in fig. 1 and fig. 4, the rack 1 is provided with a one-way bearing 26, the hand-dividing rod 3 includes a hand-dividing operation shaft 27, a first shaft sleeve 28 and a hand-dividing optical axis 29, the hand-dividing optical axis 29 is matched with the one-way bearing 26, one end of the hand-dividing optical axis 29 is connected with the hand-dividing operation shaft 27 in a linkage manner through the first shaft sleeve 28, and the hand-dividing crank 8 is arranged on the hand-dividing optical axis 29. The design makes the hand-operated rod piece 3 only rotate in one direction, namely only rotate towards the opening direction, and avoids power failure caused by misoperation and manual switching-on of the circuit breaker.
As shown in fig. 5, the portable mobile phone further comprises an L-shaped fixing plate 30, one end of the L-shaped fixing plate 30 is provided with an installation portion 31, the installation portion 31 is connected to the machine frame 1 through a screw, the other end of the installation portion 31 is provided with an inserting convex portion 32, the top of the machine frame 1 is provided with an inserting port 33 matched with the inserting convex portion 32, the L-shaped fixing plate 30 is provided with a round hole 34, and the end portion of the hand-held optical axis 29 is provided with a rotating portion 35 matched with the round hole 34. The design can support the hand-dividing rod piece 3, and the working stability of the hand-dividing rod piece 3 is improved.
As shown in fig. 5, the hand-dividing crank arm 8 is in a fan shape, an arc-shaped guide hole 36 is formed in a position, close to the arc edge, of the hand-dividing crank arm 8, a positioning hole 37 is formed in the L-shaped fixing plate 30, a limit pin 38 is inserted into the frame 1, and the limit pin 38 penetrates through the arc-shaped guide hole 36 and is matched with the positioning hole 37. The design can guide the hand-operated opening and closing lever 8, and improves the accuracy of opening and closing operation.
As shown in fig. 6, the interlocking mechanism 5 includes a hand support 39, a support plate 40, an interlocking slide 41 and an interlocking crank arm 42, the hand support 39 is mounted on the frame 1 by a screw, a through hole 43 through which the hand operation shaft 27 passes is provided on the hand support 39 by a screw, the support plate 40 is mounted on the hand support 39 by a screw, two guide screws 44 are transversely provided on the support plate 40, two travel holes 45 and a lock hole 46 corresponding to the through hole 43 are transversely provided on the interlocking slide 41, the lock hole 46 is in a long round shape, the guide screws 44 penetrate through the corresponding travel holes 45 to press the interlocking slide 41 against the front portion of the support plate 40, so that the interlocking slide 41 slides along the extending direction of the travel holes 45, one end of the interlocking crank arm 42 is connected with the output shaft 4 by a screw in a linkage manner, the other end of the interlocking crank arm 42 is hinged with the interlocking slide 41, a separation indicating plate 47 is mounted on the interlocking slide 41, and a counter 48 is mounted on the support plate 40 at a position above the separation indicating plate 47. The design can realize the switching-on and switching-off indication, and simultaneously when the hand switching-off rod piece 3 reaches the switching-on position, the switching-off indication board 47 keeps off the outer end of the hand switching-off operation shaft 27, so that the judgment of operators is facilitated, and the occurrence of misoperation can be prevented.
As shown in fig. 5, the automatic switching-on device further comprises a switching-on latch tension spring 49 and a fixing bolt 50, wherein the fixing bolt 50 is installed on the frame 1, a connecting hole 51 is formed in the hand-separating crank arm 8, one end of the switching-on latch tension spring 49 is lapped on the fixing bolt 50, and the other end of the switching-on latch tension spring 49 is in plug-in fit with the connecting hole 51. After the manual opening operation is finished, the closing latch tension spring 49 outputs a spring force to the hand-separating crank arm 8 so as to reset the hand-separating rod 3.
As shown in fig. 7, the limiting mechanism 16 includes a limiting screw 52 and a locking nut 53, the limiting screw 52 is screwed on the frame 1, a screw portion of the limiting screw 52 and the second connecting portion 14 form a limiting fit, the locking nut 53 is screwed on the screw portion of the limiting screw 52, and an inner end of the locking nut 53 abuts against the frame 1. The design can limit the stroke of the split crank arm 10, and ensure that the closing and opening of the auxiliary switch 2 can be effectively switched.
As shown in fig. 7 to 9, the limiting mechanism 16 further includes a speed reducing assembly 56, the speed reducing assembly 56 includes a U-shaped slide seat 57, a cylindrical magnet 58, a mounting sleeve 59, a first compression nut 60 and a coil 61, the second connecting portion 14 is provided with a bar-shaped guide hole 62, the U-shaped slide seat 57 is sleeved at the edge of the second connecting portion 14 and slides along the extending direction of the bar-shaped guide hole 62, the U-shaped slide seat 57 is sleeved with a locking screw 63, the locking screw 63 penetrates through the bar-shaped guide hole 62, a second compression nut 64 is screwed on the screw portion of the locking screw 63, when the second compression nut 64 is screwed, the U-shaped slide seat 57 is locked on the third connecting portion 15, a mounting groove 65 is formed at one end of the U-shaped slide seat 57, which is close to the corresponding limiting screw 52, one end of the cylindrical magnet 58 is embedded in the mounting groove 65, and the two are in interference fit, and can be reinforced by glue; the installation sleeve 59 is sleeved on the screw portion of the limit screw 52, the first compression nut 60 is in threaded connection with the screw portion of the limit screw 52 and is used for compressing the installation sleeve 59 on the lock nut 53, a gasket 66 is respectively arranged between the installation sleeve 59 and the lock nut 53 and between the installation sleeve 59 and the first compression nut 60, a butt joint portion 67 is arranged on one side, facing the second connecting portion 14, of the installation sleeve 59, a cylindrical channel 68 extending into the corresponding cylindrical magnet 58 is formed in the center of the butt joint portion 67 along the axial direction, the diameter of the cylindrical channel 68 is larger than that of the cylindrical magnet 58, an annular groove 69 coaxial with the cylindrical channel 68 is formed in the butt joint portion 67, the coil 61 is embedded in the annular groove 69, a silica gel buffer block 70 is coaxially arranged at the inner end of the cylindrical channel 68, the silica gel buffer block 70 can be inserted through slotting at the inner end of the cylindrical channel 68 and is reinforced through glue, and a hemispherical negative pressure groove 71 is formed at the outer end of the silica gel buffer block 70. The design can be used for decelerating when the second connecting part 14 of the split-and-close crank arm 10 contacts the corresponding limiting mechanism 16, namely, when the cylindrical magnet 58 on the second connecting part 14 enters the cylindrical channel 68 of the butt joint part 67, the cylindrical magnet is decelerated under the action of the electrified coil 61, so that the phenomenon that the second connecting part 14 impacts the limiting screw 52 to damage parts or rebound under the action of reverse impact force is avoided, the silica gel buffer block 70 plays a further role in buffering, and when the cylindrical magnet 58 abuts against the silica gel buffer block 70, the hemispherical negative pressure groove 71 forms negative pressure, so that a tiny adsorption force to the cylindrical magnet 58 is formed, and the normal switching of the split-and-close of the auxiliary switch 2 is further ensured.
As shown in fig. 7, the auxiliary lever 11 is provided with a second U-shaped plug portion 54, and the second connecting portion 14 is provided with a connecting pin 55 that mates with the second U-shaped plug portion 54. This design can realize the effective linkage between supplementary turning arm 11 and the branch and close turning arm 10, and linkage simple structure, and the dismouting is very convenient, does benefit to the maintenance operation in earlier stage equipment and later stage.
Claims (8)
1. The utility model provides a permanent magnet circuit breaker hand divides device, includes frame (1), auxiliary switch (2), hand branch member (3) and output shaft (4), auxiliary switch (2) are installed on frame (1), hand branch member (3) and output shaft (4) rotate and install on frame (1), the one end of hand branch member (3) is connected with output shaft (4) linkage through interlocking mechanism (5), the other end of hand branch member (3) is connected with output shaft (4) and auxiliary switch (2) through linkage mechanism (6), movable fit (7) are installed to one end of output shaft (4); the method is characterized in that: the linkage mechanism (6) comprises a hand crank arm (8), a hand connecting plate (9), a split connecting lever (10), an auxiliary connecting lever (11) and an elastic compression assembly (12), wherein the hand crank arm (8) is installed on the hand crank member (3) in a linkage manner, the split connecting lever (10) is installed on the output shaft (4) in a linkage manner, a first connecting part (13), a second connecting part (14) and a third connecting part (15) are arranged on the split connecting lever (10), one end of the hand connecting plate (9) is hinged with the hand crank arm (8), the other end of the hand connecting plate (9) is hinged with the first connecting part (13), the auxiliary connecting lever (11) is installed on the auxiliary switch (2), the second connecting part (14) is movably connected with the auxiliary connecting lever (11), a position, above and below the second connecting part (14), on the frame (1) is respectively provided with a pair of second connecting parts (14) to form a stroke limiting mechanism (16), the elastic compression assembly (12) is connected with the frame (1) in a spacing mode, the elastic compression assembly (12) is movably connected with the frame (12), the elastic pressing assembly (12) acts on the third connecting part (15) to cause the second connecting part (14) to be pressed on the corresponding limiting mechanism (16); the limiting mechanism (16) comprises a limiting screw (52) and a locking nut (53), the limiting screw (52) is in threaded connection with the frame (1), a screw rod part of the limiting screw (52) and the second connecting part (14) form limiting fit, the locking nut (53) is in threaded connection with the screw rod part of the limiting screw (52), and the inner end of the locking nut (53) is in contact with the frame (1); the limiting mechanism (16) further comprises a speed reducing assembly (56), the speed reducing assembly (56) comprises a U-shaped sliding seat (57), a cylindrical magnet (58), a mounting sleeve (59), a first compression nut (60) and a coil (61), a strip-shaped guide hole (62) is formed in the second connecting portion (14), the U-shaped sliding seat (57) is sleeved on the edge of the second connecting portion (14) and slides along the extending direction of the strip-shaped guide hole (62), a locking screw (63) penetrates through the U-shaped sliding seat (57), the locking screw (63) penetrates through the strip-shaped guide hole (62), a second compression nut (64) is connected to the screw portion of the locking screw (63) in a threaded mode, when the second compression nut (64) is screwed, the U-shaped sliding seat (57) is locked on the third connecting portion (15), a mounting groove (65) is formed in an end, close to the corresponding limiting screw (52), of the U-shaped sliding seat (57), and one end of the cylindrical magnet (58) is embedded in the mounting groove (65); the installation sleeve (59) is sleeved on the screw rod portion of the limiting screw (52), the first compression nut (60) is in threaded connection with the screw rod portion of the limiting screw (52) and used for compressing the installation sleeve (59) on the locking nut (53), a gasket (66) is arranged between the installation sleeve (59) and the locking nut (53) and between the installation sleeve (59) and the first compression nut (60) respectively, a butt joint portion (67) is arranged on one side, facing the second connecting portion (14), of the installation sleeve (59), a cylindrical channel (68) extending into the corresponding cylindrical magnet (58) is formed in the center of the butt joint portion (67) along the axial direction, the diameter of the cylindrical channel (68) is larger than that of the cylindrical magnet (58), an annular groove (69) coaxial with the cylindrical channel (68) is formed in the butt joint portion (67), the coil (61) is embedded in the annular groove (69), a silica gel buffer block (70) is further coaxially arranged at the inner end of the cylindrical channel (68), and the outer end of the silica gel buffer block (70) is provided with a hemispherical negative pressure groove (71).
2. The permanent magnet circuit breaker hand-operated device of claim 1, wherein: the elastic compression assembly (12) comprises a spring crank arm (17), a spring guide plate (18) and a pushing spring (19), wherein the spring crank arm (17) is installed on an output shaft (4) in a linkage mode, the spring crank arm (17) is connected with a third connecting portion (15) on the split crank arm (10) through a pin shaft (20), two jacks (21) are formed in the bottom of the frame (1), a supporting beam (22) is formed between the two jacks (21), one end of the spring guide plate (18) is connected onto the pin shaft (20) in a rotating mode, a first U-shaped inserting portion (23) is arranged at the other end of the spring guide plate (18), the first U-shaped inserting portion (23) is in rotating fit with the supporting beam (22), and the pushing spring (19) is sleeved on the periphery of the spring guide plate (18) and used for applying spring force to the third connecting portion (15).
3. The permanent magnet circuit breaker hand-operated device according to claim 2, wherein: the upper part of the spring guide plate (18) is provided with a first limit convex part (24), the upper end of the pushing spring (19) is propped against the first limit convex part (24), and the lower end of the pushing spring (19) is propped against the supporting beam (22); the support beam (22) is provided with a pair of second limit protruding parts (25) which are used for propping against the side parts of the first U-shaped inserting part (23) at the positions on the two sides of the first U-shaped inserting part (23).
4. The permanent magnet circuit breaker hand-operated device of claim 1, wherein: install one-way bearing (26) on frame (1), hand divides member (3) including hand branch operating shaft (27), first axle sleeve (28) and hand branch optical axis (29), hand branch optical axis (29) cooperate with one-way bearing (26), the one end of hand branch optical axis (29) is connected with hand branch operating shaft (27) linkage through first axle sleeve (28), hand branch crank arm (8) set up on hand branch optical axis (29).
5. The permanent magnet circuit breaker hand-operated device of claim 4, wherein: the novel hand-divided optical axis (29) is characterized by further comprising an L-shaped fixing plate (30), wherein one end of the L-shaped fixing plate (30) is provided with an installation part (31), the installation part (31) is connected to the frame (1) through a screw, the other end of the installation part (31) is provided with an inserting convex part (32), the top of the frame (1) is provided with an inserting port (33) matched with the inserting convex part (32), the L-shaped fixing plate (30) is provided with a round hole (34), and the end part of the hand-divided optical axis (29) is provided with a rotating part (35) matched with the round hole (34); the hand-dividing crank arm (8) is in a fan-shaped shape, an arc-shaped guide hole (36) is formed in the part, close to the arc edge, of the hand-dividing crank arm (8), a positioning hole (37) is formed in the L-shaped fixing plate (30), a limiting pin (38) is inserted into the frame (1), and the limiting pin (38) penetrates through the arc-shaped guide hole (36) and is matched with the positioning hole (37).
6. The permanent magnet circuit breaker hand-operated device of claim 4, wherein: the interlocking mechanism (5) comprises a hand-separating support (39), a support plate (40), an interlocking sliding plate (41) and an interlocking crank arm (42), wherein the hand-separating support (39) is mounted on a frame (1) through screws, a through hole (43) for a hand-separating operation shaft (27) to pass through is formed in the hand-separating support (39), the support plate (40) is mounted on the hand-separating support (39) through screws, two guide screws (44) are transversely arranged on the support plate (40), two stroke holes (45) and a lock hole (46) corresponding to the through hole (43) are formed in the interlocking sliding plate (41) in the transverse direction, the guide screws (44) penetrate through the corresponding stroke holes (45) to enable the interlocking sliding plate (41) to slide along the extending direction of the stroke holes (45), one end of the interlocking crank arm (42) is connected with an output shaft (4) through screws, the other end of the interlocking crank arm (42) is hinged to the interlocking sliding plate (41), and the interlocking crank arm (41) is mounted on the interlocking sliding plate (47) and the interlocking crank arm (41) is provided with an indicator (47).
7. The permanent magnet circuit breaker hand-operated device of claim 1, wherein: the automatic switching-on device is characterized by further comprising a switching-on pawl tension spring (49) and a fixing bolt (50), wherein the fixing bolt (50) is arranged on the frame (1), a connecting hole (51) is formed in the hand-separating crank arm (8), one end of the switching-on pawl tension spring (49) is lapped on the fixing bolt (50), and the other end of the switching-on pawl tension spring (49) is in plug-in fit with the connecting hole (51).
8. The permanent magnet circuit breaker hand-operated device of claim 1, wherein: the auxiliary crank arm (11) is provided with a second U-shaped inserting part (54), and the second connecting part (14) is provided with a connecting pin (55) matched with the second U-shaped inserting part (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389261.1A CN114783797B (en) | 2022-04-13 | 2022-04-13 | Permanent magnet circuit breaker manual separation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210389261.1A CN114783797B (en) | 2022-04-13 | 2022-04-13 | Permanent magnet circuit breaker manual separation device |
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| CN114783797A CN114783797A (en) | 2022-07-22 |
| CN114783797B true CN114783797B (en) | 2023-07-25 |
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| CN202210389261.1A Active CN114783797B (en) | 2022-04-13 | 2022-04-13 | Permanent magnet circuit breaker manual separation device |
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| CN116798801B (en) * | 2023-07-27 | 2024-07-16 | 吉徽电气集团有限公司 | Vacuum circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000268683A (en) * | 1999-01-14 | 2000-09-29 | Toshiba Corp | Operating device for switch |
| FR2950742B1 (en) * | 2009-09-29 | 2011-10-07 | Commissariat Energie Atomique | CHARGING METHOD AND METHOD FOR DETERMINING AN END-OF-CHARGE CRITERION OF A NICKEL BATTERY |
| JP2011155820A (en) * | 2010-01-28 | 2011-08-11 | Sanyo Electric Co Ltd | Solar battery power supply and charging method of secondary battery using solar battery |
| US8729416B2 (en) * | 2012-01-23 | 2014-05-20 | Electro-Mechanical Corporation | Circuit breaker remote tripping |
| CN102592861B (en) * | 2012-03-02 | 2015-05-20 | 北京科锐配电自动化股份有限公司 | Novel manual operating mechanism |
| CN106847608B (en) * | 2017-01-13 | 2018-12-18 | 浙江巨力电气有限公司 | A kind of permanent magnetic spring integrated mechanism of outdoor high-voltage alternating-current vacuum breaker |
| CN106847610B (en) * | 2017-03-13 | 2018-11-06 | 宁波舜源电力科技有限公司 | Permanent magnetic spring actuating integral mechanism and its application method |
| CN109326483B (en) * | 2018-12-01 | 2024-05-10 | 宁波鑫鑫鑫寅电气有限公司 | Alternating-current high-voltage SF6 circuit breaker and permanent magnet operating mechanism thereof |
| CN209822507U (en) * | 2019-06-20 | 2019-12-20 | 吉林永大电气开关有限公司 | Permanent magnet circuit breaker cabinet external closed type emergency manual switching-off device |
| CN217214490U (en) * | 2022-04-13 | 2022-08-16 | 廖长和 | Permanent magnetism circuit breaker hand divides mechanism |
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Effective date of registration: 20230926 Address after: 325000 Wenzhou Bridge Industrial Park, Beibaixiang Town, Leqing City, Wenzhou City, Zhejiang Province (within Leqing Changhe Power Technology Co., Ltd.) Patentee after: Zhejiang Jurui Electric Technology Co.,Ltd. Address before: 325000 No. 35, chang'ao East Road, Sanjiang street, Yongjia County, Wenzhou City, Zhejiang Province Patentee before: Liao Changhe |