WO2016015677A1 - 脱扣装置及使用该脱扣装置的弹簧操动机构 - Google Patents

脱扣装置及使用该脱扣装置的弹簧操动机构 Download PDF

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Publication number
WO2016015677A1
WO2016015677A1 PCT/CN2015/085734 CN2015085734W WO2016015677A1 WO 2016015677 A1 WO2016015677 A1 WO 2016015677A1 CN 2015085734 W CN2015085734 W CN 2015085734W WO 2016015677 A1 WO2016015677 A1 WO 2016015677A1
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WO
WIPO (PCT)
Prior art keywords
tripping
shaft
latch
disposed
piston
Prior art date
Application number
PCT/CN2015/085734
Other languages
English (en)
French (fr)
Inventor
宋超
闫光超
刘宇
朱苛娄
郭良超
宋广民
王守山
许家源
苏计东
钟建英
Original Assignee
国家电网公司
平高集团有限公司
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Filing date
Publication date
Application filed by 国家电网公司, 平高集团有限公司 filed Critical 国家电网公司
Publication of WO2016015677A1 publication Critical patent/WO2016015677A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts

Definitions

  • the present invention relates to a trip device and a spring operating mechanism using the trip device.
  • the spring operating mechanism generally comprises a frame and a closing spring disposed on the frame, an opening spring and a parallel arrangement of the energy storage shaft and the output shaft, and the energy storage shaft is connected with the closing spring through the closing spring chain, the output shaft
  • the brake spring chain is connected with the opening spring drive
  • the energy storage shaft is provided with a closing tweezer
  • the output shaft is connected with a buffer and a tripping fitting through the arm
  • the energy storage shaft is provided with a closing ⁇ .
  • the sub-locking tripping device is provided with an opening and tripping device matched with the tripping fitting.
  • the motor drives the energy storage shaft to rotate, and the energy storage shaft pulls the closing spring energy through the closing spring chain, and after the energy storage ends, the closing tripping device and the closing clamp are matched with the limit. Preventing the energy storage shaft from continuing to rotate, thereby maintaining the closing spring in the energy storage state.
  • the closing tripping device releases the limit of the closing scorpion, the closing spring releases energy, and the energy storage shaft
  • the storage shaft cam rotates with the output shaft, and the output arm on the output shaft drives the opening spring energy through the opening spring chain, and simultaneously closes the moving contact and the corresponding static contact through the output rod, and buffers in the process.
  • the device dampens the output shaft.
  • the tripping trip device cooperates with the opening scorpion to limit the rotation of the output shaft, thereby maintaining the opening spring in the energy storage state.
  • the trip release device releases the limit of the output shaft.
  • the output arm drives the energy storage shaft to rotate, and the output pull rod drives the corresponding dynamic and static contact to open. Buffer to the output shaft during this process Damping effect.
  • the function of the tripping device is to maintain the energy of the closing spring and the opening spring through the mechanical transmission structure, and then apply a small unlocking force on the corresponding tripping member to release the spring energy, thereby realizing The closing and opening action of the spring operating mechanism.
  • the existing tripping device is the "opening and tripping structure of the spring operating mechanism" disclosed in Chinese Patent No. CN2348476Y.
  • the tripping structure comprises a device frame, and the device frame is hinged with a locking bolt extending in the left and right direction of the hinge axis, and the locking bolt
  • the upper solid is provided with a tripping shaft extending in the left-right direction, the tripping shaft is used for engaging with the tripping fitting, the first return spring is arranged between the latch and the device frame, and the hinge axis is hinged on the device frame
  • the direction-extending opening dice has two arms, one of which is for engaging with the locking bolt, and the other is for engaging with the rotating half of the rotating assembly on the device seat, and the tripping
  • the structure also includes an electromagnet for driving the rotation of the half shaft.
  • the use process of the tripping structure is: when the closing spring releases energy, the output shaft rotates and drives the corresponding moving and static contacts to close, in this process, the opening spring stores energy, and when the closing process ends, the tripping cooperation The piece is locked by the tripping shaft on the bolt and cannot be rotated counterclockwise. The bolt is blocked by the tripping lever. At this time, the tripping shaft is in the energy storage holding position, and the opening dice is again opened.
  • the electromagnet drives the opening half shaft to rotate to open the opening dice
  • the tripping fitting rotates counterclockwise with the corresponding arm
  • the tripping fitting presses the tripping shaft
  • the tripping shaft drives the latch to rotate counterclockwise to open the tripping fitting.
  • the tripping shaft is at The energy storage release position, when the tripping shaft completely releases the tripping fitting, the output shaft rotates to move the moving and static contacts, and when the tripping fitting is completely separated from the tripping shaft, the first return spring drives the latch and The tripping shaft is reset to wait for the next closing process.
  • the electromagnet, the opening half shaft and the opening dice are equivalent to an unlocking mechanism, and the unlocking mechanism can make the tripping shaft in the energy storage holding position by the limit locking bolt. It is also possible to move the trip shaft to the energy storage release position by unlocking the lock bolt.
  • the existing trip device has the problem that the trip shaft is fixedly disposed on the lock bolt, and the trip shaft cannot be rotated. When the trip shaft is pressed under the trip fit member, the trip shaft cannot be rotated and tripped. The sliding friction between the parts is completely, and the friction between the tripping shaft and the tripping fitting is too large, which may cause the trip to fail.
  • the movement path of the tripping shaft is centered on the hinge axis of the bolt.
  • the arc movement causes the tripping shaft to be disengaged from the tripping fitting as soon as possible during the opening process, which affects the initial speed of the opening and closing of the moving and stationary contacts.
  • the buffer in the existing spring operating mechanism also has the following problems: 1.
  • the damping effect of the buffer on the output shaft during the opening and closing process is the same, which is very inconsistent with the actual demand of the spring operating mechanism. Because in actual work, the smaller the impact of the buffer on the closing process, the better.
  • the closing force of the closing spring is expected to be completely transmitted to the moving contact instead of being absorbed by the buffer.
  • the buffer is more The absorption of the splitting force; 2.
  • the buffer has a damping effect on the output shaft at the beginning of the closing of the moving and stationary contacts, which affects the closing speed of the closing and opening of the moving and stationary contacts. The moving contact is easily damaged by the arc.
  • the technical solution of the trip device in the present invention is:
  • the trip device comprises a device frame and a first tripping shaft, wherein the device frame is hinged with a first locking bolt extending in the left-right direction of the hinge axis, and a first return spring is arranged between the first locking bolt and the device frame, and the device is mounted on the device
  • An unlocking mechanism is also provided, which is provided with a first locking bolt.
  • the device frame is provided with a first guiding slot extending in the vertical direction. The first tripping shaft is guided and moved in the first guiding slot, and the first tripping shaft is arranged.
  • the first locking bolt is provided with a first pushing and engaging with the first tripping shaft to push the first tripping shaft to the first position of the energy storage holding position under the action of the first return spring
  • the trip shaft pushes the mating portion.
  • the unlocking mechanism includes a second latch hinged to the device frame, the hinge axis of the second latch extends in the left-right direction, and a second return spring is disposed between the second latch and the device frame, and the second latch Located on the upper side of the first latch, the device frame is provided with a second guiding slot extending in the left-right direction, and the guiding movement in the second guiding slot is equipped with a second tripping shaft, and the second tripping shaft Rotatingly cooperate with the second guiding groove, the second locking bolt is arranged to be pushed and engaged with the second tripping shaft to rotate forward under the action of the second returning spring to push the second tripping shaft to the upper end of the first locking bolt Stop the fit and make the first off The buckle shaft is held at the second trip shaft pushing engagement portion of the energy storage holding position, and the second bolt is magnetically engaged with the second trip shaft.
  • the unlocking mechanism further includes a third locking bolt hinged to the device frame, the hinge axis of the third locking bolt extends in the left-right direction, and a third return spring is disposed between the third locking bolt and the device frame, and the third locking bolt is disposed on the third locking bolt Provided with a bolt pushing structure for positively rotating under the action of the third return spring and engaging with the second bolt limit to prevent the second bolt from being reversed when the first trip shaft is in the energy storage holding position, the third The locking bolt is located on the upper side of the second locking bolt, the third locking bolt and the first locking bolt are located on the right side of the second locking bolt, and the unlocking mechanism further comprises an inversion for driving the third locking bolt to make the locking bolt pushing structure Open the tripping electromagnet and/or trip handle of the second latch.
  • the device frame is provided with at least two positioning holes for the device frame extending in the left-right direction, and positioning sleeves are respectively disposed in the positioning holes of the device frames, and one end of the positioning sleeve is provided with a ring for matching with the device frame.
  • the boss has an internal thread on the inner wall of the positioning sleeve.
  • a spring operating mechanism comprising a tripping fitting, a tripping device and an energy storage spring coupled to the tripping fitting, the tripping device comprising a device frame, the device frame being provided with a first locking bolt extending in a left-right direction And a first tripping shaft used in conjunction with the tripping fitting, a first return spring is disposed between the first latch and the device frame, and the device rack is further provided with an unlocking mechanism matched with the first latch, on the device rack a first guiding slot extending in the up-and-down direction is disposed, the first tripping shaft is guided to move in the first guiding slot, and the first tripping shaft is rotatably engaged with the first guiding slot, and the first latching bolt is disposed on the first latching bolt
  • the first tripping shaft is push-fitted to push the first tripping shaft to the first tripping shaft pushing engagement portion of the energy storage holding position under the action of the first return spring.
  • the unlocking mechanism includes a second latch hinged to the device frame, the hinge axis of the second latch extends in the left-right direction, and a second return spring is disposed between the second latch and the device frame, and the second latch Located on the upper side of the first latch, the device frame is provided with a second guiding slot extending in the left-right direction, and the guiding movement in the second guiding slot is equipped with a second tripping shaft, and the second tripping shaft Rotatingly cooperate with the second guiding groove, the second locking bolt is arranged to be pushed and engaged with the second tripping shaft to rotate forward under the action of the second returning spring to push the second tripping shaft to the upper end of the first locking bolt
  • the second latching shaft is in a magnetic engagement with the second tripping shaft.
  • the second latching shaft is magnetically engaged with the second tripping shaft.
  • the unlocking mechanism further includes a third locking bolt hinged to the device frame, the hinge axis of the third locking bolt extends in the left-right direction, and a third return spring is disposed between the third locking bolt and the device frame, and the third locking bolt is disposed on the third locking bolt Provided with a bolt pushing structure for positively rotating under the action of the third return spring and engaging with the second bolt limit to prevent the second bolt from being reversed when the first trip shaft is in the energy storage holding position, the third The locking bolt is located on the upper side of the second locking bolt, the third locking bolt and the first locking bolt are located on the right side of the second locking bolt, and the unlocking mechanism further comprises an inversion for driving the third locking bolt to make the locking bolt pushing structure Open the electric trip solenoid and/or trip handle of the second latch.
  • the device frame is provided with at least two positioning holes for the device frame extending in the left-right direction, and positioning sleeves are respectively disposed in the positioning holes of the device frames, and one end of the positioning sleeve is provided with a ring for matching with the device frame.
  • the boss has an internal thread on the inner wall of the positioning sleeve.
  • the spring operating mechanism further includes a frame, the device frame is fixed on the frame, the frame is provided with a buffer and an output shaft extending in the left and right direction, and the output shaft is provided with an output shaft arm, and the buffer is turned
  • a pin shaft is disposed on the arm, and a piston hole is disposed on the piston rod of the buffer, and the pin shaft is disposed in the hinge hole, and the hinge hole is a long hole extending in a direction extending in a length direction of the length of the piston rod.
  • the buffer comprises an inner cylinder and an outer cylinder coaxially sleeved on the outer periphery of the inner cylinder, the inner cylinder of the inner cylinder is slidably fitted with a piston, and the piston rod is disposed on the piston, between the inner and outer cylinders
  • the utility model has an annular gap, wherein the inner cylinder of the inner cylinder is provided with a radial oil hole communicating with the inner cavity of the inner cylinder and the annular gap, the piston has a sliding matching section with the piston rod guiding sliding fit, and the piston rod is provided with a limiting piston a first and a second limiting structure for reciprocating the limit on the piston rod, the spacing between the first and second limiting structures is greater than the axial length of the sliding engagement section, and the piston is provided with an axis extending through the piston in the axial direction of the piston To the oil hole, a piston cap for sealing the corresponding hole of the axial oil hole is disposed on one side of the piston rod on the piston rod.
  • the beneficial effect of the invention is that after the energy storage spring is stored, the first tripping shaft is pushed by the first bolt to the energy storage holding position, and the first bolt is limited by the unlocking mechanism, so the first tripping shaft Being in the energy storage holding position and not moving, the tripping fitting is restricted by the first tripping axis to keep the energy storage spring in the energy storage state, and the energy storage spring is maintained in the energy storage state; when the energy storage spring is required to release energy, The unlocking mechanism releases the limit of the first bolt. Under the force of the energy storage spring, the tripping member pushes the first tripping shaft to move along the first guiding slot, and the first tripping shaft releases the tripping fitting.
  • the energy storage spring releases the energy, and the first tripping shaft moves linearly along the guiding slot during the process of releasing the tripping fitting member by the first tripping shaft, and the first tripping shaft can be quickly disengaged from the tripping fitting.
  • the buckle speed is fast, the energy of the energy storage spring can be quickly released, and the initial speed of the moving contact is ensured.
  • the first tripping shaft is rotatably assembled in the first guiding groove, and the tripping fitting is firstly pressed in the top pressure. During the process of buckle shaft, the first tripping shaft can smoothly roll, the first tripping shaft and the off Fitting rolling friction between the friction between both of which are small and will not appear stuck phenomenon, to ensure the reliability of the trip.
  • the hinge hole is a long hole extending in the length of the piston rod, and the buffer arm is connected to the piston rod through a pin penetrating in the hinge hole, and the two ends of the hinge hole are respectively defined as a head end and an end end,
  • the beneficial effects of the present invention will now be described in detail by taking the movement of the axial end of the hinge pin in the buffer arm of the buffer when closing.
  • the pin When the moving and static contacts are opened, the pin is located at the head end of the hinge hole.
  • the buffer arm first drives the pin to move toward the end. Since the hinge hole is a long hole, the pin can first move a certain distance in the hinge hole, and the pin moves in the hinge hole.
  • the piston rod does not move, that is, the buffer does not dampen the buffer arm, does not affect the initial closing speed of the moving contact, and then the pin moves to the end of the hinge hole, and the piston rod starts to drive the piston to continue.
  • the buffer arm moves the pin shaft toward the head end in the hinge hole. Since the hinge hole is a long hole, the piston rod does not move at the beginning, that is, the buffer pair buffer The arm of the arm has no damping effect and does not affect the initial opening speed of the moving contact. Then the pin moves to the first end of the hinge hole, and the piston rod starts to move the piston.
  • the moving contact can be ensured.
  • the initial speed of the gate and the opening, the structure of the buffer is very simple, and the manufacturing cost is low.
  • FIG. 1 is a schematic structural view of an embodiment of a spring operating mechanism in the present invention
  • FIG. 2 is a schematic structural view of the trip release device of FIG. 1, and is also a schematic structural view of an embodiment of the trip device of the present invention
  • Figure 3 is a schematic view showing the structure of the first trip shaft of Figure 2 in the energy storage release position
  • Figure 4 is a schematic structural view of the device rack of Figure 2;
  • Figure 5 is a schematic structural view of the first guiding groove of Figure 2;
  • Figure 6 is a schematic structural view of the positioning sleeve of Figure 2;
  • Figure 7 is a schematic view showing the cooperation of the trip release device and the trip release fitting in Figure 1;
  • Figure 8 is a schematic structural view of the buffer of Figure 1;
  • Figure 9 is a schematic structural view of the inner bar of Figure 8.
  • Figure 10 is a schematic structural view of the piston cover of Figure 8.
  • Figure 11 is a schematic structural view of the piston of Figure 8.
  • Figure 12 is a left side view of Figure 11;
  • Figure 13 is a schematic view of the cooperation of the piston and the piston cover during the closing process
  • Figure 14 is a schematic view of the cooperation of the piston and the piston cover during the opening process.
  • the embodiment of the spring operating mechanism is as shown in FIGS. 1-14: comprising a frame, the frame is provided with an energy storage spring buffer 52 and an output shaft 50 and an energy storage shaft 51 extending in the left and right direction, and the energy storage spring is divided into The opening spring 23 and the closing spring 22 and the energy storage shaft are provided with an energy storage shaft cam and an energy storage scorpion 57 connected to the closing spring by a closing spring chain 53.
  • the energy storage shaft is also provided with an energy storage shaft sprocket.
  • a closing tripping fitting is arranged on the energy storage shaft sprocket, and a closing tripping device 60 is arranged beside the energy storage shaft, and the spring operating mechanism further comprises a motor connected to the energy storage shaft sprocket through the transmission mechanism, and the output shaft
  • the upper end sleeve is provided with an output arm and a buffer arm 55.
  • the buffer arm is an integrated arm, and the output arm is connected with an output rod 56 for driving connection with the corresponding moving contact, and the integrated arm 55 is connected.
  • a buffer pin hole, a roller pin hole and a connecting rod pin hole are arranged, and a connecting piece is installed in the connecting pin hole through the first pin shaft, and the connecting piece is connected to the opening spring through the opening spring chain 54
  • a brake energy storage roller 67 for urging with the energy storage shaft cam 66 is mounted through the second pin shaft, and the buffer is integrated with the third pin 58 penetrating through the buffer pin hole. The arms are connected.
  • the buffer is a hydraulic buffer, and the buffer comprises an inner cylinder 3 and an outer cylinder 1 which is coaxially sleeved on the outer periphery of the inner cylinder, and has an annular gap between the inner and outer cylinders, and the cylinder of the inner cylinder is provided with a communication inner cylinder 3
  • the first radial oil hole 18 and the second radial oil hole 16 of the inner cavity and the annular gap at both ends in the embodiment, when the closing spring releases energy, the piston rod moves toward the second radial oil hole, and the second
  • the diameter of the radial oil hole 16 is larger than the diameter of the first radial oil hole 18.
  • the piston of the inner cylinder is slidably fitted with a piston 5, and the piston is provided with a piston rod.
  • the piston rod includes a rod body 13 connected to the piston and a joint 14 disposed on the rod body.
  • the joint 14 is provided with a hinge hole 15 and the hinge hole is The long hole extending in the same direction as the length of the piston rod extends, and the third pin shaft disposed on the integrated arm is disposed in the hinge hole.
  • the piston comprises an inner sleeve 5-2 and an outer sleeve 5-3 which are sleeved inside and outside the coaxial line, and the inner sleeve 5-2 is sleeved and sleeved on the piston rod, and the inner sleeve constitutes a sliding engagement portion with the piston rod guiding sliding fit, the outer sleeve Sealing and slidingly engaging with the inner cavity wall of the inner cylinder, the piston rod is provided with a first limiting structure and a second limiting structure for limiting the reciprocating movement limit of the piston on the piston rod, and the spacing between the first and second limiting structures
  • the first and second limiting structures are respectively formed by the retaining ring 4 and the snap ring 6 assembled on the piston rod, which are larger than the axial length of the sliding engaging section.
  • the inner and outer ends of the sleeve are connected by an annular connecting plate 5-1, and the annular connecting plate is provided with an axial oil hole 17 extending through the annular connecting plate in the axial direction, and the axial oil hole comprises four circumferentially evenly surrounding the annular connecting plate.
  • a lug hole is arranged on the piston rod, and a piston cover 7 for blocking a corresponding end hole of the axial oil hole 17 is disposed on a side of the piston.
  • the piston cover is located on a side of the second radial oil hole, and the piston cover is opened.
  • There is a auxiliary separation hole 19 extending through the piston cover in the axial direction.
  • the auxiliary separation hole and the axial oil hole on the piston are mutually offset in the axial direction of the piston, and the piston cover is provided with a chamfered structure 20.
  • Item 12 in the figure indicates a cover for preventing the piston and the piston cover from coming out of the inner cylinder; item 10 indicates a snap ring for restricting the cover 12; items 8, 9, and 11 all indicate a seal ring; and item 2 indicates hydraulic oil.
  • a tripping tripping fitting is disposed on the buffer arm, and a tripping tripping device 59 is disposed beside the output shaft, wherein the tripping tripping fitting and the closing tripping fitting are identical in structure, and the tripping tripping device 59 is The structure is the same as that of the closing and tripping device 60. Only the structure of the tripping tripping fitting 67 and the tripping tripping device are specifically described. The structure of the tripping and snapping fitting is as shown in Fig. 7: opening The tripping fitting 67 is hinged to the buffer arm 55.
  • the hinge axis of the tripping tripping member extends in the left-right direction, and a return spring 68 is disposed between the tripping tripping member and the buffer arm.
  • the arm is provided with a limit pin 69 for engaging with the tripping snap fitting.
  • the tripping snap fitting is provided with a connecting plate 70, and the connecting plate is provided with a hinge axis for opening the trip fitting.
  • the arc-shaped long hole of the center, the limit pin 69 is inserted in the arc-shaped long hole.
  • the return spring keeps the tripping tripping fitting in the lower limit position, and when the closing is closed, the buffer arm is counterclockwise Rotation (viewing angle in Fig.
  • the trip release device includes a device frame 71 fixed to the frame, and the device frame 71 is provided with a plurality of device frame positioning holes extending in the left and right direction. 82.
  • a positioning sleeve 85 is disposed in each of the positioning holes 82 of the device frame.
  • One end of the positioning sleeve is provided with an annular boss 86 for engaging with the limit of the device frame.
  • the inner wall of the positioning sleeve is provided with an internal thread.
  • the rack is provided with a rack positioning hole for positioning and inserting the positioning sleeves. After the positioning sleeve is inserted into the rack positioning hole, the device rack is fixed to the rack by bolts, thereby improving assembly precision and assembly time.
  • the device frame is formed by two symmetric casting plates.
  • the device frame is provided with an unlocking structure and a first locking bolt 62 extending in the left-right direction of the hinge axis.
  • the unlocking structure includes the hinge axis parallel to the hinge axis of the first bolt.
  • the second latch 63 and the third latch 64, item 72 in Fig. 2 represents the hinge axis of the first latch, item 75 represents the hinge axis of the second latch, and item 77 represents the hinge axis of the third latch.
  • a first return spring 73, a second return spring 76 and a third return spring 80 are respectively disposed between the first lock bolt, the second lock bolt and the third lock bolt and the device rack, and the second lock bolt 63 is located at the first lock bolt
  • the upper side of the 62, the third latch 64 is located on the upper side of the second latch 63, the first latch and the third latch are located on the right side of the second latch, such that the three latches enclose the opening U toward the right
  • the structure is such that the opening and closing device has a compact structure and a small occupied space, and the device frame is provided with a first guiding groove 81 extending in the up and down direction and a second guiding groove 83 extending in the left and right direction.
  • the guiding movement in the guiding groove is equipped with a first tripping shaft 61 for engaging with the tripping trip fitting 67, the first tripping shaft 61 is rotatably fitted with the first guiding slot 81; and the second guiding slot 83 is guided by the moving assembly There is a second tripping shaft 74, and the second tripping shaft is rotatably engaged with the second guiding slot.
  • the structure of the first guiding slot 81 is as shown in FIG. 5, and one half of the first guiding slot is disposed on one of the casting plates.
  • the other plate of one guiding groove is disposed on the other casting plate, and is opened at the upper end of the first guiding groove
  • the perforation 84 in use, the first tripping shaft is inserted into the first guiding groove by the perforation, and then the perforation is blocked by the first locking bolt, so that the first tripping shaft is not disengaged from the first guiding slot, and the two
  • the casting plate can limit the axial direction of the first guiding groove, and the first locking bolt 62 is provided with a pushing fit with the first tripping shaft 61 to top the first tripping shaft 61 under the action of the first return spring 73.
  • the second locking bolt 63 is provided with a pushing fit with the second tripping shaft 74 to rotate forward under the action of the second return spring 76 to be the second
  • the tripping shaft is pushed to the second tripping shaft pushing engagement portion, the second latching bolt 63 and the second tripping shaft, which are matched with the upper end of the first bolt to thereby hold the first tripping shaft in the energy storage holding position 74 magnetic fit, where the magnetic engagement means that the second lock bolt and the second trip shaft are magnetically attracted to each other.
  • the specific technical means is that the second lock bolt is provided with a magnet, and the second trip shaft is made of a magnet.
  • the unlocking mechanism further comprises a third bolt for driving Reversed to cause the latch push-up structure to release the trip solenoid 65 of the second latch.
  • the use process of the tripping device of the opening is as follows: under normal conditions, the first bolt is rotated by the first return spring to push the first tripping shaft to the lower limit position, that is, the energy storage holding position, and the second bolt The second tripping shaft is pushed to the right limit position by the second return spring, and the second tripping shaft is matched with the upper end of the first bolt, and the first bolt cannot be reversed, the same reason, the same The three lock bolts are rotated by the third return spring and are blocked by the second lock bolt, so that the second lock bolt cannot be reversed.
  • the forward rotation of the present invention refers to the spring force alone, corresponding to the rotation of the lock bolt. direction.
  • the trip release fitting rotates with the buffer arm, and when the trip release fitting touches the first trip shaft, since the first latch is restricted by the unlocking mechanism, A tripping shaft is fixed until the tripping tripper rotates through the first tripping shaft, and the tripping spring is maintained in the energy storage state.
  • the electromagnet drives the third latching bolt to reverse Turning, the third latch releases the limit of the second bolt, and is driven by the opening spring.
  • the tripping tripping member pushes the first tripping shaft to move up along the first guiding slot, and the first tripping shaft is autobiographically
  • the first latch reverses pushing the second latch to flip and the second tripping shaft moves to the left
  • the second tripping shaft can also rotate, and since the second latch can attract the second tripping shaft, this
  • the energy of the trip spring is released, and then the latches are returned to their original positions by the respective return springs.
  • Items 79 and 78 in Fig. 2 respectively show a mounting post and a mounting cap for the third return spring.
  • the working process of the circuit breaker operating mechanism is as follows: the motor drives the energy storage shaft to rotate through the transmission mechanism, and the tweezers unit compresses the closing spring energy through the closing spring chain, and when the closing spring energy storage is in place, the closing release device
  • the limit of the closing tripping fitting on the energy storage shaft sprocket is matched to prevent the energy storage shaft from continuing to rotate, and the closing spring is maintained in the energy storage state, and when the moving and static contact is required to be closed, the closing tripping device
  • the limit of the energy storage tweezers is released. Under the action of the closing spring, the energy storage shaft sprocket drives the energy storage shaft to rotate.
  • the energy storage shaft cam and the opening energy storage roller on the integrated arm are pushed and matched.
  • the integrated arm drives the output shaft to rotate, and the output arm moves the movable contact toward the corresponding static contact through the output pull rod to realize the closing, and at the same time, the opening spring is compressed and stored, defining the first and second radial directions.
  • the arrangement direction of the right hole is the first end direction, and then the two ends of the hinge hole are the head end and the end end respectively, and at the same time, the integrated arm drive pin shaft moves toward the end of the hinge hole, since the hinge hole is a long hole extending in the front and rear direction So in the At the beginning, the piston rod does not move, the buffer does not dampen the integrated arm, and the initial speed of the closing of the moving contact is ensured. Then the pin moves to the end of the hinge hole, and the piston rod starts to move the piston, and the hydraulic oil flows.
  • the auxiliary separation hole enters between the piston cover and the piston to ensure smooth separation of the piston cover and the piston.
  • the axial oil hole on the piston is not blocked by the piston cover, and the hydraulic oil on the side of the piston on the side where the second radial oil hole is located
  • Two lines flow to the front side of the piston, one line is the axial oil hole on the piston, the other line is the second radial oil hole, the annular gap and the first radial oil hole, and the two lines ensure the flow area of the hydraulic oil
  • the damping effect of the hydraulic oil is reduced, thereby reducing the damping effect of the buffer on the integrated arm, and reducing the influence of the buffer on the closing process of the moving contact, and the aperture of the second radial oil hole is larger than the first a radial oil hole diameter, which can further improve the flow capacity of the hydraulic oil, further reduce the hydraulic oil
  • the trip release device cooperates with the opening roller limit to maintain the opening spring in the energy storage state.
  • the tripping release device releases the limit of the opening roller, the opening spring drives the integrated arm to rotate, and the output arm also drives the moving contact to move away from the corresponding static contact through the output lever.
  • the head direction moves, and the integrated arm moves the pin shaft toward the head end of the hinge hole. Since the hinge hole is a long hole, the piston rod does not move forward at the beginning of the opening, and the buffer does not dampen the integrated arm.
  • the initial speed of the moving contact is ensured, and then the pin moves to the first end of the hinge hole, and the piston rod drives the piston to move.
  • the end of the piston adjacent to the piston cover is pressed against the corresponding end of the piston cover by the hydraulic oil.
  • the axial oil hole is blocked by the piston cover, and the hydraulic oil on the piston on the side where the first radial oil hole is located can only flow to the piston through the first radial oil hole, the annular gap and the second radial oil hole.
  • the flow area of the hydraulic oil is small, and the damping force of the hydraulic oil is large, which ensures the damping effect of the buffer on the integrated arm, and since the diameter of the first radial oil hole is smaller than the diameter of the second radial oil hole, further Increased Damping force oil pressure, time division in order to achieve different damping effect closing operation.
  • the piston is composed of an inner sleeve, a jacket and an annular connecting plate disposed between the inner and outer sleeves, so that the weight of the piston can be reduced, the manufacturing cost of the buffer can be reduced, and the structural strength of the rack is high, compared with the original rack. It meets the demanding requirements of the high-power spring operating mechanism and the demanding use of the frame. At the same time, it reduces the design size of the frame, makes the structure compact, not cumbersome, and has stable performance.
  • the frame adopts a detachable structure and is divided into three parts.
  • the left mounting plate, the right mounting plate and the opening spring tube, the closing spring tube, the opening spring tube and the closing spring tube are integrally formed side by side, and the opening spring tube is fixed at the double end of the left mounting plate, and the closing spring tube It is fixed on the right side of the right mounting.
  • the design of the frame adopts three. Partially casted, the casting difficulty is greatly reduced, and the machining method of positioning and matching is also adopted in machining, which ensures the coaxiality of the left and right mounting plates, and the processing is simple and reliable.
  • the detachable features of the rack are used to meet the replacement requirements of mass production parts in the mechanical design, reduce the cost, ensure the accuracy, and provide economic benefits;
  • the frame adopts the cast aluminum structure to make the machine
  • the weight of the frame is greatly reduced, the mechanical performance of the spring operating mechanism is improved, and the strength of the frame is designed to meet the design requirements by rationally arranging the reinforcing rib structure, thereby reducing the material cost.
  • the tripping device comprises a three-stage locking bolt, the tripping force is small, and the components of the tripping device are integrated into the device seat, and the modularity is high, which is convenient for installation and debugging; the first tripping shaft and the second tripping shaft can both The rotation ensures the reliability of the tripping process and reduces the maintenance cost.
  • the second tripping shaft can also be attracted by the second latch and can be installed at various angles.
  • the apertures of the first and second radial oil holes may also be uniform; the piston rod and the joint may also be integrally formed; of course, the buffer may also be a pneumatic buffer, and the buffer may only be used.
  • the utility model comprises a cylinder body, a piston is arranged in the cylinder body, and the piston rod is arranged on the piston; the buffer arm and the arm for connecting the opening spring chain can also be arranged separately, when the subsequent disassembly and maintenance is not required,
  • the brake spring cylinder and the closing spring cylinder can also be welded and fixed to the left mounting plate and the right mounting plate respectively; the opening spring sleeve, the closing spring sleeve and the corresponding spring seat guiding sleeve can also be integrally provided; the opening spring The number of springs in the spring and closing spring can also be set as needed.
  • the opening spring includes a spring or three springs
  • the closing spring includes two springs or four springs
  • the tripping electromagnet can also be taken off The buckle handle is replaced. At this time, the trip can be unlocked manually.
  • the tripping electromagnet and the trip handle can be set at the same time; the third latch can also be omitted.
  • the second release shaft can also be directly disposed on the second lock bolt;
  • the device frame can also be integrally provided with the frame, that is, the device frame can be a part of the frame; in the spring operating mechanism, In the closing tripping device and the tripping tripping device, only one tripping device may adopt the structure of the tripping tripping device in the above embodiment, and the other tripping device may adopt other structures, such as existing As with the technology, the first trip shaft is directly disposed on the first bolt.
  • the embodiment of the trip device is as described in FIGS. 2-7: the specific structure of the trip device is the same as that of the above-described spring brake mechanism embodiment, and will not be described in detail herein.

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

一种脱扣装置及使用该脱扣装置的弹簧操动机构，该脱扣装置包括装置架（71）和第一脱扣轴（61），装置架上铰接有铰接轴线沿左右方向延伸的第一锁栓（62），第一锁栓与装置架之间设置有第一复位弹簧（73），装置架上还设置有与第一锁栓配合的解锁机构，装置架上设置有导向方向沿上下方向延伸的第一导向槽（81），第一脱扣轴导向移动装配于第一导向槽中，第一脱扣轴与第一导向槽转动配合，第一锁栓上设置有与所述第一脱扣轴顶推配合以在第一复位弹簧作用下将第一脱扣轴顶推至储能保持位的第一脱扣轴顶推配合部。由于脱扣过程中第一脱扣轴沿第一导向槽做直线运动，从而提高了脱扣速度；并且脱扣配合件在顶压第一脱扣轴时两者之间为滚动摩擦，保证了脱扣的可靠性。

Description

脱扣装置及使用该脱扣装置的弹簧操动机构 技术领域
本发明涉及脱扣装置及使用该脱扣装置的弹簧操动机构。
背景技术
弹簧操动机构一般包括机架及设置于机架上的合闸弹簧、分闸弹簧和平行设置的储能轴和输出轴，储能轴通过合闸弹簧链条与合闸弹簧传动连接，输出轴通过分闸弹簧链条与分闸弹簧传动连接，储能轴上设置有合闸掣子，输出轴上通过拐臂连接有缓冲器和脱扣配合件，储能轴旁设置有用于与合闸掣子配合的合闸脱扣装置，输出轴旁设置有与脱扣配合件配合的分闸脱扣装置。当需要合闸弹簧储能时，电机带动储能轴转动，储能轴通过合闸弹簧链条拉动合闸弹簧储能，在储能结束后合闸脱扣装置与合闸掣子限位配合以防止储能轴继续转动，从而将合闸弹簧保持于储能状态，当需要合闸时，合闸脱扣装置解除对合闸掣子的限位，合闸弹簧释放能量，储能轴上的储能轴凸轮与带动输出轴转动，输出轴上的输出拐臂通过分闸弹簧链条带动分闸弹簧储能，同时通过输出拉杆带动动触头与对应静触头合闸，在此过程中缓冲器对输出轴起到阻尼作用，在动、静触头合闸后，分闸脱扣装置与分闸掣子配合以限制输出轴转动，从而将分闸弹簧保持于储能状态，当需要动、静触头分闸时，分闸脱扣装置解除对输出轴的限位，在分闸弹簧的作用力下，输出拐臂带动储能轴转动，输出拉杆带动相应动、静触头分闸，此过程中缓冲器对输出轴起到阻尼作用。
在弹簧操动机构中，脱扣装置的作用是通过机械传动结构将合闸弹簧、分闸弹簧的能量进行保持，然后在相应脱扣件上施加很小的解锁力来释放弹簧能量，从而实现弹簧操动机构的合闸、分闸动作。现有的脱扣装置如中国专利CN2348476Y公开的“弹簧操动机构的分闸脱扣结构”，该脱扣结构包括装置架，装置架上铰接有铰接轴线沿左右方向延伸的锁栓，锁栓上固设有轴线沿左右方向延伸的脱扣轴，脱扣轴用于与脱扣配合件配合，锁栓与装置架之间设置有第一复位弹簧，装置架上还铰接有铰接轴线沿左右方向延伸的分闸掣子，分闸具有两个拐臂，其中一个拐臂用于与锁栓挡止配合，另一个拐臂用于与装置座上转动装配的分闸半轴配合，脱扣结构还包括用于驱动半轴转动的电磁铁。该脱扣结构的使用过程为：当合闸弹簧释放能量时，输出轴转动并带动相应动、静触头合闸，在此过程中分闸弹簧储能，当合闸过程结束，脱扣配合件被锁栓上的脱扣轴限位而不能逆时针转动，锁栓被分闸掣子限位，此时脱扣轴处于储能保持位，分闸掣子在又被分闸半轴限位，这样分闸弹簧就被保持于储能状态，当需要分闸弹簧释放能量时，电磁铁带动分闸半轴转动以让开分闸掣子，在 分闸弹簧作用力下，脱扣配合件随相应拐臂逆时针转动，脱扣配合件压迫脱扣轴，脱扣轴带动锁栓逆时针转动以让开脱扣配合件，此时脱扣轴处于储能释放位，在脱扣轴彻底让开脱扣配合件时，输出轴转动带动动、静触头分闸，当脱扣配合件与脱扣轴彻底脱离后，第一复位弹簧带动锁栓和脱扣轴复位以等待下一次的合闸过程，电磁铁、分闸半轴和分闸掣子相当于一个解锁机构，该解锁机构可以通过限位锁栓而使脱扣轴处于储能保持位还可以通过对锁栓解锁而使脱扣轴运动至储能释放位。现有的这种脱扣装置存在的问题在于：脱扣轴固定设置于锁栓上，脱扣轴不能转动，在脱扣配合件下压脱扣轴时，脱扣轴不能转动与脱扣配合件之间完全是滑动摩擦，脱扣轴与脱扣配合件之间的摩擦力过大就很有可能导致脱扣失败，另外，脱扣轴的运动轨迹是以锁栓的铰接轴线为圆心的弧形运动，导致在分闸过程中，脱扣轴不能尽快及时的与脱扣配合件脱离，这会影响动、静触头的分闸初始速度。另外现有弹簧操动机构中的缓冲器还存在如下问题：1、缓冲器在分闸、合闸过程中对输出轴的阻尼效果相同，这是非常不符合弹簧操动机构的实际需求的，因为在实际工作中，缓冲器对合闸过程的影响越小越好，合闸弹簧的合闸作用力希望完全被传递到动触头上而不是被缓冲器吸收，缓冲器更多的是对分闸作用力的吸收；2、缓冲器在动、静触头的合闸、分闸之初就对输出轴产生阻尼效果，这会影响到动、静触头的合闸、分闸初始速度，动触头容易受到电弧的损坏。
发明内容
本发明的目的在于提供一种脱扣可靠且脱扣速度较快的脱扣装置；本发明的目的还在于提供一种使用该脱扣装置的弹簧操动机构。
为了解决上述问题，本发明中脱扣装置的技术方案为：
脱扣装置，包括装置架和第一脱扣轴，装置架上铰接有铰接轴线沿左右方向延伸的第一锁栓，第一锁栓与装置架之间设置有第一复位弹簧，装置架上还设置有与第一锁栓配合的解锁机构，装置架上设置有导向方向沿上下方向延伸的第一导向槽，第一脱扣轴导向移动装配于第一导向槽中，第一脱扣轴与第一导向槽转动配合，第一锁栓上设置有与所述第一脱扣轴顶推配合以在第一复位弹簧作用下将第一脱扣轴顶推至储能保持位的第一脱扣轴顶推配合部。
所述解锁机构包括铰接于所述装置架上的第二锁栓，第二锁栓的铰接轴线沿左右方向延伸，第二锁栓与装置架之间设置有第二复位弹簧，第二锁栓位于第一锁栓的上侧，所述装置架上设置有导向方向沿左右方向延伸的第二导向槽，所述第二导向槽中导向移动装配有第二脱扣轴，第二脱扣轴与第二导向槽转动配合，第二锁栓上设置有与第二脱扣轴顶推配合以在第二复位弹簧作用下正转以将第二脱扣轴顶推至与第一锁栓上端挡止配合进而使第一脱 扣轴保持于储能保持位的第二脱扣轴顶推配合部，第二锁栓与第二脱扣轴磁性配合。
所述解锁机构还包括铰接于装置架上的第三锁栓，第三锁栓的铰接轴线沿左右方向延伸，第三锁栓与装置架之间设置有第三复位弹簧，第三锁栓上设置有用于在第一脱扣轴处于储能保持位时在第三复位弹簧作用下正转而与第二锁栓限位配合以防止第二锁栓反转的锁栓顶推结构，第三锁栓位于第二锁栓的上侧，第三锁栓、第一锁栓位于第二锁栓的右侧，解锁机构还包括用于驱动第三锁栓反转以使锁栓顶推结构让开第二锁栓的脱扣电磁铁和/或脱扣手柄。
所述装置架上设置有至少两个轴线沿左右方向延伸的装置架定位孔，在各装置架定位孔中均穿设有定位套，定位套的一端设置有用于与装置架限位配合的环形凸台，定位套的内孔壁上设置有内螺纹。
本发明中弹簧操动机构的技术方案为：
弹簧操动机构，包括脱扣配合件、脱扣装置和与脱扣配合件传动连接的储能弹簧，脱扣装置包括装置架，装置架上设置有铰接轴线沿左右方向延伸的第一锁栓和与脱扣配合件配合使用的第一脱扣轴，第一锁栓与装置架之间设置有第一复位弹簧，装置架上还设置有与第一锁栓配合的解锁机构，装置架上设置有导向方向沿上下方向延伸的第一导向槽，第一脱扣轴导向移动装配于第一导向槽中，第一脱扣轴与第一导向槽转动配合，第一锁栓上设置有与所述第一脱扣轴顶推配合以在第一复位弹簧作用下将第一脱扣轴顶推至储能保持位的第一脱扣轴顶推配合部。
所述解锁机构包括铰接于所述装置架上的第二锁栓，第二锁栓的铰接轴线沿左右方向延伸，第二锁栓与装置架之间设置有第二复位弹簧，第二锁栓位于第一锁栓的上侧，所述装置架上设置有导向方向沿左右方向延伸的第二导向槽，所述第二导向槽中导向移动装配有第二脱扣轴，第二脱扣轴与第二导向槽转动配合，第二锁栓上设置有与第二脱扣轴顶推配合以在第二复位弹簧作用下正转以将第二脱扣轴顶推至与第一锁栓上端挡止配合进而使第一脱扣轴保持于储能保持位的第二脱扣轴顶推配合部，第二锁栓与第二脱扣轴磁性配合。
所述解锁机构还包括铰接于装置架上的第三锁栓，第三锁栓的铰接轴线沿左右方向延伸，第三锁栓与装置架之间设置有第三复位弹簧，第三锁栓上设置有用于在第一脱扣轴处于储能保持位时在第三复位弹簧作用下正转而与第二锁栓限位配合以防止第二锁栓反转的锁栓顶推结构，第三锁栓位于第二锁栓的上侧，第三锁栓、第一锁栓位于第二锁栓的右侧，解锁机构还包括用于驱动第三锁栓反转以使锁栓顶推结构让开第二锁栓的电脱扣电磁铁和/或脱扣手柄。
所述装置架上设置有至少两个轴线沿左右方向延伸的装置架定位孔，在各装置架定位孔中均穿设有定位套，定位套的一端设置有用于与装置架限位配合的环形凸台，定位套的内孔壁上设置有内螺纹。
弹簧操动机构还包括机架，装置架固设于所述机架上，机架上设置有缓冲器和轴线沿左右方向延伸的输出轴，输出轴上设置有输出轴拐臂，缓冲器拐臂上设置有销轴，缓冲器的活塞杆上设置有铰接孔，所述销轴穿设于所述铰接孔中，所述铰接孔为长度延伸方向与活塞杆长度延伸方向一致的长孔。
所述缓冲器包括内缸和同轴线套设于内缸外围的外缸，内缸的内腔中导向滑动装配有活塞，所述活塞杆设置于所述活塞上，内、外缸之间具有环形间隙，内缸的缸体两端设有连通内缸的内腔与环形间隙的径向油孔，所述活塞具有与活塞杆导向滑动配合的滑动配合段，活塞杆上设置有限制活塞在活塞杆上往复移动极限的第一、第二限位结构，第一、第二限位结构之间的间距大于滑动配合段的轴向长度，活塞上设置有沿活塞轴向贯穿活塞的轴向油孔，活塞杆上于活塞的一侧设置有用于封堵轴向油孔对应端孔口的活塞盖。
本发明的有益效果为：储能弹簧储能结束后，第一脱扣轴被第一锁栓顶推至储能保持位，而第一锁栓被解锁机构限位，因此第一脱扣轴处于储能保持位而不能移动，脱扣配合件被第一脱扣轴限位而使得储能弹簧保持于储能状态，储能弹簧保持于储能状态；当需要储能弹簧释放能时，解锁机构解除对第一锁栓的限位，在储能弹簧作用力下，脱扣配合件顶推第一脱扣轴沿第一导向槽运动，第一脱扣轴就会让开脱扣配合件而使储能弹簧释放能量，在第一脱扣轴让开脱扣配合件的过程中，第一脱扣轴沿导向槽做直线运动，第一脱扣轴能迅速与脱扣配合件脱离，脱扣速度快，储能弹簧的能量能迅速释放，保证动触头的分闸初速度，另外第一脱扣轴是转动装配于第一导向槽中的，脱扣配合件在顶压第一脱扣轴的过程中，第一脱扣轴可顺利滚动，第一脱扣轴与脱扣配合件之间为滚动摩擦，其二者之间的摩擦力小，不会出现卡死现象，保证了脱扣的可靠性。
进一步的，铰接孔为一个长度沿活塞杆长度方向延伸的长孔，缓冲器拐臂通过穿设于铰接孔中的销轴与活塞杆相连，将铰接孔的两端分别定义为首端和末端，现以合闸时缓冲器拐臂带动销轴向铰接孔末端移动为例对本发明的有益效果进行详细说明，在动、静触头分闸时，销轴位于铰接孔的首端，当动、静触头开始合闸时，缓冲器拐臂先带动销轴朝末端移动，由于铰接孔为一个长孔，所以销轴可以先在铰接孔中移动一段距离，销轴在铰接孔中移动的这段时间内，活塞杆并不移动，也就是说缓冲器对缓冲器拐臂没有阻尼作用，不会影响动触头的初始合闸速度，随后销轴移动至铰接孔的末端，活塞杆开始带动活塞继续移动；在 需要动、静触头分闸时，缓冲器拐臂带动销轴在铰接孔中朝首端移动，由于铰接孔为一个长孔，因此在最初，活塞杆并不会移动，也就是说缓冲器对缓冲器拐臂没有阻尼作用，不会影响动触头的初始分闸速度，随后销轴移动至铰接孔的首端，活塞杆开始带动活塞移动，通过设置一个长孔就能够保证动触头的合闸、分闸初始速度，本缓冲器的结构非常简单，制作成本低。
附图说明
图1是本发明中弹簧操动机构的一个实施例的结构示意图；
图2是图1中分闸脱扣装置的结构示意图，同时也是本发明中脱扣装置的一个实施例的结构示意图；
图3是图2中第一脱扣轴处于储能释放位时的结构示意图；
图4是图2中装置架的结构示意图；
图5是图2中第一导向槽的结构示意图；
图6是图2中定位套的结构示意图；
图7是图1中分闸脱扣装置与分闸脱扣配合件的配合示意图；
图8是图1中缓冲器的结构示意图；
图9是图8中内杠的结构示意图；
图10是图8中活塞盖的结构示意图；
图11是图8中活塞的结构示意图；
图12是图11的左视图；
图13是合闸过程中活塞与活塞盖的配合示意图；
图14是分闸过程中活塞与活塞盖的配合示意图。
具体实施方式
弹簧操动机构的实施例如图1～14所示：包括机架，机架上设置有储能弹簧缓冲器52和轴线沿左右方向延伸的输出轴50和储能轴51，储能弹簧分为分闸弹簧23和合闸弹簧22、储能轴上设置有储能轴凸轮和通过合闸弹簧链条53与合闸弹簧连接的储能掣子57，储能轴上还设置有储能轴链轮，储能轴链轮上设置合闸脱扣配合件，储能轴旁设置有合闸脱扣装置60，弹簧操动机构还包括通过传动机构与储能轴链轮传动连接的电机，输出轴上止转套设有输出拐臂和缓冲器拐臂55，缓冲器拐臂为一个集成拐臂，输出拐臂上连接有用于与相应动触头传动连接的输出拉杆56，集成拐臂55上设有缓冲器销孔、滚轮销孔和连接件销孔，连接件销孔中通过第一销轴安装有连接件，连接件通过分闸弹簧链条54与分闸弹簧连 接，滚轮销孔中通过第二销轴安装有用于与储能轴凸轮66顶推配合的分闸储能滚轮67，缓冲器通过穿设于缓冲器销孔中的第三销轴58与集成拐臂相连。缓冲器为液压缓冲器，缓冲器包括内缸3及同轴线套设于内缸外围的外缸1，内、外缸之间具有环形间隙，内缸的缸体上设有连通内缸3两端的内腔与环形间隙的第一径向油孔18和第二径向油孔16，本实施例中在合闸弹簧释放能量时，活塞杆朝第二径向油孔方向移动，第二径向油孔16的孔径大于第一径向油孔18的孔径。内缸的内腔中导向滑动装配有活塞5，活塞上设置有活塞杆，活塞杆包括与活塞相连的杆体13及设置于杆体上的接头14，接头14上设置有铰接孔15，铰接孔为长度延伸方向与活塞杆的长度延伸方向一致的长孔，集成拐臂上设置的第三销轴穿设于铰接孔中。活塞包括内外同轴线套设的内套5-2和外套5-3，内套5-2导向滑动套设于活塞杆上，内套构成了与活塞杆导向滑动配合的滑动配合段，外套与内缸的内腔壁密封滑动配合，活塞杆上设置有限制活塞在活塞杆上往复移动极限的第一限位结构和第二限位结构，第一、第二限位结构之间的间距大于滑动配合段的轴向长度，第一、第二限位结构分别由装配在活塞杆上的挡圈4和卡环6构成。内、套的一端之间通过环形连板5-1连接，环形连板上设置有沿轴向贯穿环形连板的轴向油孔17，轴向油孔包括四个绕环形连板周向均匀布置的腰形孔，活塞杆上于活塞的一侧设置有用于封堵轴向油孔17的对应端孔口的活塞盖7，活塞盖位于第二径向油孔所在侧，活塞盖上开设有沿轴向贯穿活塞盖的助分离孔19，在活塞轴向上所述助分离孔与活塞上的轴向油孔相互错开，活塞盖上设有倒角结构20。图中项12表示防止活塞、活塞盖由内缸中脱出的封盖；项10表示对封盖12进行限位的卡环；项8、9、11均表示密封圈；项2表示液压油。
缓冲器拐臂上设置有分闸脱扣配合件，输出轴旁设置有分闸脱扣装置59，其中分闸脱扣配合件和合闸脱扣配合件的结构相同，分闸脱扣装置59的结构与合闸脱扣装置60的结构相同，现仅对分闸脱扣配合件67和分闸脱扣装置的结构进行具体说明，分闸脱扣配合件的结构如图7所示：分闸脱扣配合件67铰接于缓冲器拐臂55上，分闸脱扣配合件的铰接轴线沿左右方向延伸，分闸脱扣配合件与缓冲器拐臂之间设置有复位簧68，缓冲器拐臂上设置有用于与分闸脱扣配合件限位配合的限位销69，分闸脱扣配合件上设置有连接板70，连接板上设有以分闸脱扣配合件的铰接轴线为圆心的弧形长孔，限位销69穿设于弧形长孔中，在正常情况下复位簧将分闸脱扣配合件保持于下极限位，当合闸时，缓冲器拐臂逆时针转动(图7中的视角)，由于分闸脱扣装置的第一脱扣轴61在合闸时是固定不动的，所以分闸脱扣配合件会碰到第一脱扣轴，分闸脱扣配合件便会逆时针旋转，压缩复位簧，分闸脱扣配合件会转过分闸脱扣装置，当合闸过程技术即缓冲器拐臂旋转到位后，在复位簧的作用 下，分闸脱扣配合件回到原来的下极限位，此时缓冲器拐臂在分闸弹簧作用下具有顺时针转动趋势，但是分闸脱扣配合件被分闸脱扣装置的第一脱扣轴限位，因此分闸弹簧保持于储能状态。分闸脱扣装置的结构如图2～7所示：分闸脱扣装置包括固装于机架上的装置架71，装置架71上设有多个轴线沿左右方向延伸的装置架定位孔82，在各装置架定位孔82中均穿设有定位套85，定位套的一端设置有用于与装置架限位配合的环形凸台86，定位套的内孔壁上设置有内螺纹，在机架上设置有供各定位套定位插装的机架定位孔，在定位套插装于机架定位孔上后通过螺栓将装置架固定于机架上，这样可以提高装配精度和装配时间。装置架由两块对称的铸板对扣而成，装置架设置有解锁结构和铰接轴线沿左右方向延伸的第一锁栓62，解锁结构包括铰接轴线与第一锁栓的铰接轴线相平行的第二锁栓63和第三锁栓64，图2中项72表示第一锁栓的铰接轴，项75表示第二锁栓的铰接轴，项77表示第三锁栓的铰接轴。第一锁栓、第二锁栓和第三锁栓与装置架之间分别设置有第一复位弹簧73、第二复位弹簧76和第三复位弹簧80，第二锁栓63位于第一锁栓62的上侧，第三锁栓64位于第二锁栓63的上侧，第一锁栓和第三锁栓位于第二锁栓的右侧，这样三个锁栓围成开口朝右的U形结构，使得分闸脱扣装置结构紧凑，占用空间较小，装置架上设置有导向方向沿上下方向延伸的第一导向槽81和导向方向沿左右方向延伸的第二导向槽83，第一导向槽中导向移动装配有用于与分闸脱扣配合件67相配合的第一脱扣轴61，第一脱扣轴61与第一导向槽81转动配合；第二导向槽83中导向移动装配有第二脱扣轴74，第二脱扣轴与第二导向槽转动配合，其中第一导向槽81的结构如图5所示，第一导向槽的一半设置于其中一个铸板上，第一导向槽的另一板设置于另一个铸板上，在第一导向槽的上端开设有穿孔84，使用时第一脱扣轴由穿孔装入第一导向槽中，随后穿孔被第一锁栓封堵，这样第一脱扣轴就不会由第一导向槽中脱出，而两个铸板可以对第一导向槽的轴向进行限位，第一锁栓62上设置有与第一脱扣轴61顶推配合以在第一复位弹簧73作用下将第一脱扣轴61顶推至储能保持位的第一脱扣轴顶推配合部，第二锁栓63上设置有与第二脱扣轴74顶推配合以在第二复位弹簧76作用下正转以将第二脱扣轴顶推至与第一锁栓上端挡止配合进而使第一脱扣轴保持于储能保持位的第二脱扣轴顶推配合部，第二锁栓63与第二脱扣轴74磁性配合，此处的磁性配合指的使第二锁栓与第二脱扣轴通过磁性相互吸引，具体的技术手段是第二锁栓上设置有磁铁，第二脱扣轴由能被磁铁吸引的金属(或合金)制成，当然也可以反过来设置，比如说在第二脱扣轴上设置磁铁，第二锁栓上设置由能被磁铁吸引的金属(或合金)。第三锁栓64上设置有用于在第一脱扣轴处于储能保持位时在第三复位弹簧作用下正转而与第二锁栓限位配合以防止第二锁栓反转的锁栓顶推结构，解锁机构还包括用于驱动第三锁栓 反转以使锁栓顶推结构让开第二锁栓的脱扣电磁铁65。本分闸脱扣装置的使用过程为：在正常情况下，第一锁栓受第一复位弹簧作用正转将第一脱扣轴顶推至下极限位即储能保持位，第二锁栓受第二复位弹簧作用正转将第二脱扣轴顶推至右极限位，此时第二脱扣轴与第一锁栓上端挡止配合，第一锁栓不能反转，同样道理，第三锁栓受第三复位弹簧作用正转而与第二锁栓挡止，这样第二锁栓就不能反转，本发明中的正转指的是单独受弹簧作用力，对应锁栓的转动方向。这样当合闸时，分闸脱扣配合件随缓冲器拐臂一起旋转，在分闸脱扣配合件触碰到第一脱扣轴时，由于第一锁栓被解锁机构限位，所以第一脱扣轴固定不动，直至分闸脱扣件转过第一脱扣轴，分闸弹簧就被保持于储能状态，当需要分闸弹簧释放能量时，电磁体驱动第三锁栓反转，第三锁栓解除对第二锁栓的限位，受分闸弹簧作用力，分闸脱扣配合件推动第一脱扣轴沿第一导向槽上移，第一脱扣轴一边自传一边上移，第一锁栓反转推动第二锁栓翻转和第二脱扣轴朝左移动，第二脱扣轴也可以自转，同时由于第二锁栓可以吸引第二脱扣轴，这就保证了第二脱扣轴动作的稳定性，进一步的保证了脱扣的可靠性。在第一脱扣轴上移到储能释放位时，分闸弹簧的能量被释放，随后各锁栓受各自复位弹簧作用回到原来位置。图2中项79、78分别表示供第三复位簧安装的安装柱和安装帽。
本断路器操动机构的工作过程为：电机通过传动机构带动储能轴转动，掣子单元通过合闸弹簧链条压缩合闸弹簧储能，当合闸弹簧储能到位时，合闸脱扣装置与储能轴链轮上的合闸脱扣配合件限位配合以防止储能轴继续转动，合闸弹簧保持于储能状态，当需要动、静触头合闸时，合闸脱扣装置解除对储能掣子的限位，在合闸弹簧作用下，储能轴链轮带动储能轴转动，在此过程中储能轴凸轮与集成拐臂上的分闸储能滚轮顶推配合，集成拐臂带动输出轴转动，输出拐臂通过输出拉杆带动动触头朝对应静触头方向运动以实现合闸，与此同时分闸弹簧被压缩储能，定义第一、第二径向右孔的布置方向为首末方向，那么铰接孔的两端分别为首端和末端，与此同时集成拐臂带动销轴朝铰接孔的末端移动，由于铰接孔为一个长度沿前后方向延伸的长孔，因此在合闸之初，活塞杆并不移动，缓冲器不对集成拐臂产生阻尼作用，保证了动触头的合闸初始速度，随后销轴运动至铰接孔的末端，活塞杆开始带动活塞移动，液压油经助分离孔进入活塞盖与活塞之间，保证活塞盖与活塞顺利分离，活塞上的轴向油孔没有被活塞盖封堵，活塞上于第二径向油孔所在的一侧的液压油经两条线路流向活塞前侧，一条线路是活塞上的轴向油孔，另一条线路是第二径向油孔、环形间隙和第一径向油孔，两条线路保证了液压油的流通面积，减小了液压油的阻尼效果，进而减小了缓冲器对集成拐臂的阻尼效果，降低了缓冲器对动触头合闸过程的影响，而由于第二径向油孔的孔径大于第一径向油孔的孔径，这样能进一步的提高液压油的通流能力，进一步的降低液压油 的阻尼效果，当合闸结束时，分闸脱扣装置与分闸滚轮限位配合，以将分闸弹簧保持于储能状态。当需要动、静触头分闸时，分闸脱扣装置解除对分闸滚轮的限位，分闸弹簧带动集成拐臂转动，输出拐臂也通过输出拉杆带动动触头朝远离对应静触头方向运动，集成拐臂带动销轴朝铰接孔首端移动，由于铰接孔为一个长孔，因此在分闸之初，活塞杆并不朝前移动，缓冲器不对集成拐臂产生阻尼作用，保证了动触头的分闸初始速度，随后销轴运动到铰接孔的首端，活塞杆带动活塞移动，受液压油作用活塞临近活塞盖的一端与活塞盖的对应端紧贴，活塞上的轴向油孔被活塞盖封堵，活塞上于第一径向油孔所在的一侧的液压油只能通过第一径向油孔、环形间隙和第二径向油孔这一条线路流向活塞后侧，液压油的流通面积小，液压油的阻尼力大，保证了缓冲器对集成拐臂的阻尼效果，而由于第一径向油孔的孔径小于第二径向油孔的孔径，进一步的增加了液压油的阻尼力，从而实现分合闸操作时不同的阻尼效果。活塞由内、外套及设置于内、外套之间的环形连板构成，这样可以减小活塞的重量，可以降低缓冲器的制作成本；机架的结构强度高，相比原有的机架，满足大功率弹簧操动机构操作功大而对机架苛刻的使用要求；同时减小了机架的设计尺寸，使结构紧凑，不笨重，性能稳定，机架采用可拆结构，分为三部分，左安装板、右安装板和分闸弹簧筒、合闸弹簧筒，分闸弹簧筒、合闸弹簧筒左右并列的一体成型，分闸弹簧筒固定于左安装板双端，合闸弹簧筒固定于右安装板上端，相比原有的机架，大大减小了设计尺寸，优化了安装布置形式，其加工难度小，装配方式灵活；除了降低加工工艺难度，该机架的设计采用三部分单独铸造的方式，使铸造的难度大大减小，在机加工方面也采用了定位配合的加工方式，保证了左、右安装板的同轴度，加工简单可靠，同时在大批量生产的过程中，利用机架的可拆特点，满足机械设计中大批量生产零部件的更换性要求，降低成本，保证精度，提供经济效益；机架采用铸铝结构，使机架的重量大大减少，提高了弹簧操动机构的机械性能，并通过合理的布置加强筋结构使机架的强度达到设计要求，降低了材料成本。脱扣装置包括三级锁栓，脱扣力小，脱扣装置的各零部件均集成到装置座上，模块化程度高，便于安装调试；第一脱扣轴和第二脱扣轴均能自转，保证了脱扣过程的可靠性，减少了维护费用，同时第二脱扣轴还能被第二锁栓吸引，可多种角度安装。
在本发明的其它实施例中：第一、第二径向油孔的孔径也可以一致；活塞杆与接头还可以一体成型；当然缓冲器还可以是一个气压缓冲器，此时缓冲器可以仅包括一个缸体，缸体内设置有活塞，活塞杆设置于活塞上；缓冲器拐臂和用于连接分闸弹簧链条的拐臂也可以分体设置，当不需要后续拆装维修时，分闸弹簧筒、合闸弹簧筒也可以分别与左安装板、右安装板焊接固连；分闸弹簧套、合闸弹簧套和对应弹簧座导向套还可以一体设置；分闸弹 簧、合闸弹簧中弹簧的个数还可以根据需要进行设置，比如说分闸弹簧包括一个弹簧或三个弹簧，合闸弹簧包括两个弹簧或四个弹簧；脱扣电磁铁还可以被脱扣手柄代替，此时可以手动实现脱扣解锁，当然也可以脱扣电磁铁与脱扣手柄同时设置；第三锁栓还可以不设，此时要解锁时，脱扣电磁铁可以直接作用于第二锁栓上；第二脱扣轴还可以直接设置于第二锁栓上；装置架也可以与机架一体设置，即装置架可以是机架的一部分；在该弹簧操动机构中，合闸脱扣装置、分闸脱扣装置中也可以仅有一个脱扣装置采取上述实施例中的分闸脱扣装置的结构，另外一个脱扣装置可以采取其它的结构，比如说如现有技术一样，第一脱扣轴直接设置于第一锁栓上。
脱扣装置的实施例如图2～7所述：脱扣装置的具体结构与上述各弹簧操动机构实施例中所述的分闸脱扣装置相同，在此不再详述。

Claims (10)

  1. 脱扣装置，包括装置架和第一脱扣轴，装置架上铰接有铰接轴线沿左右方向延伸的第一锁栓，第一锁栓与装置架之间设置有第一复位弹簧，装置架上还设置有与第一锁栓配合的解锁机构，其特征在于：装置架上设置有导向方向沿上下方向延伸的第一导向槽，第一脱扣轴导向移动装配于第一导向槽中，第一脱扣轴与第一导向槽转动配合，第一锁栓上设置有与所述第一脱扣轴顶推配合以在第一复位弹簧作用下将第一脱扣轴顶推至储能保持位的第一脱扣轴顶推配合部。
  2. 根据权利要求1所述的脱扣装置，其特征在于：所述解锁机构包括铰接于所述装置架上的第二锁栓，第二锁栓的铰接轴线沿左右方向延伸，第二锁栓与装置架之间设置有第二复位弹簧，第二锁栓位于第一锁栓的上侧，所述装置架上设置有导向方向沿左右方向延伸的第二导向槽，所述第二导向槽中导向移动装配有第二脱扣轴，第二脱扣轴与第二导向槽转动配合，第二锁栓上设置有与第二脱扣轴顶推配合以在第二复位弹簧作用下正转以将第二脱扣轴顶推至与第一锁栓上端挡止配合进而使第一脱扣轴保持于储能保持位的第二脱扣轴顶推配合部，第二锁栓与第二脱扣轴磁性配合。
  3. 根据权利要求2所述的脱扣装置，其特征在于：所述解锁机构还包括铰接于装置架上的第三锁栓，第三锁栓的铰接轴线沿左右方向延伸，第三锁栓与装置架之间设置有第三复位弹簧，第三锁栓上设置有用于在第一脱扣轴处于储能保持位时在第三复位弹簧作用下正转而与第二锁栓限位配合以防止第二锁栓反转的锁栓顶推结构，第三锁栓位于第二锁栓的上侧，第三锁栓、第一锁栓位于第二锁栓的右侧，解锁机构还包括用于驱动第三锁栓反转以使锁栓顶推结构让开第二锁栓的脱扣电磁铁和/或脱扣手柄。
  4. 根据权利要求1～3任意一项所述的脱扣装置，其特征在于：所述装置架上设置有至少两个轴线沿左右方向延伸的装置架定位孔，在各装置架定位孔中均穿设有定位套，定位套的一端设置有用于与装置架限位配合的环形凸台，定位套的内孔壁上设置有内螺纹。
  5. 弹簧操动机构，包括脱扣配合件、脱扣装置和与脱扣配合件传动连接的储能弹簧，脱扣装置包括装置架，装置架上设置有铰接轴线沿左右方向延伸的第一锁栓和与脱扣配合件配合使用的第一脱扣轴，第一锁栓与装置架之间设置有第一复位弹簧，装置架上还设置有与第一锁栓配合的解锁机构，其特征在于：装置架上设置有导向方向沿上下方向延伸的第一导向槽，第一脱扣轴导向移动装配于第一导向槽中，第一脱扣轴与第一导向槽转动配合，第一锁栓上设置有与所述第一脱扣轴顶推配合以在第一复位弹簧作用下将第一脱扣轴顶推至储能保持位的第一脱扣轴顶推配合部。
  6. 根据权利要求5所述的弹簧操动机构，其特征在于：所述解锁机构包括铰接于所述装置 架上的第二锁栓，第二锁栓的铰接轴线沿左右方向延伸，第二锁栓与装置架之间设置有第二复位弹簧，第二锁栓位于第一锁栓的上侧，所述装置架上设置有导向方向沿左右方向延伸的第二导向槽，所述第二导向槽中导向移动装配有第二脱扣轴，第二脱扣轴与第二导向槽转动配合，第二锁栓上设置有与第二脱扣轴顶推配合以在第二复位弹簧作用下正转以将第二脱扣轴顶推至与第一锁栓上端挡止配合进而使第一脱扣轴保持于储能保持位的第二脱扣轴顶推配合部，第二锁栓与第二脱扣轴磁性配合。
  7. 根据权利要求5所述的弹簧操动机构，其特征在于：所述解锁机构还包括铰接于装置架上的第三锁栓，第三锁栓的铰接轴线沿左右方向延伸，第三锁栓与装置架之间设置有第三复位弹簧，第三锁栓上设置有用于在第一脱扣轴处于储能保持位时在第三复位弹簧作用下正转而与第二锁栓限位配合以防止第二锁栓反转的锁栓顶推结构，第三锁栓位于第二锁栓的上侧，第三锁栓、第一锁栓位于第二锁栓的右侧，解锁机构还包括用于驱动第三锁栓反转以使锁栓顶推结构让开第二锁栓的电脱扣电磁铁和/或脱扣手柄。
  8. 根据权利要求5所述的弹簧操动机构，其特征在于：所述装置架上设置有至少两个轴线沿左右方向延伸的装置架定位孔，在各装置架定位孔中均穿设有定位套，定位套的一端设置有用于与装置架限位配合的环形凸台，定位套的内孔壁上设置有内螺纹。
  9. 根据权利要求5～8任意一项所述的弹簧操动机构，其特征在于：弹簧操动机构还包括机架，装置架固设于所述机架上，机架上设置有缓冲器和轴线沿左右方向延伸的输出轴，输出轴上设置有输出轴拐臂，缓冲器拐臂上设置有销轴，缓冲器的活塞杆上设置有铰接孔，所述销轴穿设于所述铰接孔中，所述铰接孔为长度延伸方向与活塞杆长度延伸方向一致的长孔。
  10. 根据权利要求9所述的弹簧操动机构，其特征在于：所述缓冲器包括内缸和同轴线套设于内缸外围的外缸，内缸的内腔中导向滑动装配有活塞，所述活塞杆设置于所述活塞上，内、外缸之间具有环形间隙，内缸的缸体两端设有连通内缸的内腔与环形间隙的径向油孔，所述活塞具有与活塞杆导向滑动配合的滑动配合段，活塞杆上设置有限制活塞在活塞杆上往复移动极限的第一、第二限位结构，第一、第二限位结构之间的间距大于滑动配合段的轴向长度，活塞上设置有沿活塞轴向贯穿活塞的轴向油孔，活塞杆上于活塞的一侧设置有用于封堵轴向油孔对应端孔口的活塞盖。
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