WO2015197034A2 - 集成拐臂及使用该集成拐臂的弹簧操动机构 - Google Patents

集成拐臂及使用该集成拐臂的弹簧操动机构 Download PDF

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Publication number
WO2015197034A2
WO2015197034A2 PCT/CN2015/088038 CN2015088038W WO2015197034A2 WO 2015197034 A2 WO2015197034 A2 WO 2015197034A2 CN 2015088038 W CN2015088038 W CN 2015088038W WO 2015197034 A2 WO2015197034 A2 WO 2015197034A2
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WO
WIPO (PCT)
Prior art keywords
hole
piston
mounting plate
pin
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/088038
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English (en)
French (fr)
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WO2015197034A3 (zh
Inventor
宋超
刘宇
付亚旭
王守山
陈金钟
孔志武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
State Grid Corp of China SGCC
Original Assignee
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
State Grid Corp of China SGCC
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Application filed by Pinggao Group Co Ltd, Henan Pinggao Electric Co Ltd, State Grid Corp of China SGCC filed Critical Pinggao Group Co Ltd
Publication of WO2015197034A2 publication Critical patent/WO2015197034A2/zh
Publication of WO2015197034A3 publication Critical patent/WO2015197034A3/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to the field of circuit breakers, and more particularly to an integrated arm and a spring operating mechanism using the integrated arm.
  • the spring operating mechanism is the key to the performance of a circuit breaker, and the energy storage device is the key to the performance of the spring operating mechanism.
  • the existing spring operating mechanism is disclosed in the Chinese patent CN202126942U, "a high-power spring operating mechanism suitable for high-voltage and ultra-high-voltage circuit breakers", the spring operating mechanism includes an energy storage device, and the energy storage device includes a motor and a storage device.
  • the energy shaft and the energy storage shaft are provided with energy storage tweezers connected by the closing spring chain and the corresponding closing spring, and the energy storage shaft cam and the energy storage shaft sprocket are fixed on the energy storage shaft, and the energy storage shaft is arranged beside The closing tripping device matched with the energy storage tweezers, the energy storage shaft sprocket is connected with the power output end of the motor through a transmission mechanism, and the spring operating mechanism further comprises an output shaft arranged in parallel with the energy storage shaft, and the output shaft is assembled There is a buffer arm and an output arm, and the output arm is provided with a shutter energy storage roller for pushing and supporting with the energy storage shaft cam and a connecting member connected with the corresponding opening spring through the opening spring chain, and the opening is opened.
  • the energy storage roller and the connecting member are all mounted on the output arm through the pin shaft, the buffer arm is connected with the buffer through the pin shaft, and the output arm is also connected with the output rod connected to the corresponding moving contact.
  • a trip release device for mating with the output arm limit is provided beside the output arm.
  • the working process of the spring operating mechanism is: when the closing spring energy storage is required, the motor drives the energy storage shaft to rotate, and the joint on the energy storage shaft pulls the closing spring energy storage through the chain, and the closing brake is released after the energy storage ends.
  • the device cooperates with the energy storage tweezers on the energy storage shaft sprocket to prevent the energy storage shaft from continuing to rotate, thereby maintaining the closing spring in the energy storage state, and when the closing is required, the closing and releasing device releases the energy storage
  • the energy storage shaft cam on the energy storage shaft drives the output shaft to rotate
  • the output arm drives the opening spring energy storage
  • the moving contact is combined with the corresponding static contact through the output pull rod
  • the buffer acts as a damping function on the output shaft.
  • the tripping trip device limits 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.
  • the buffer acts on the output shaft during this process Nepal role.
  • the existing problems of the energy storage device of the spring operating mechanism are as follows: 1. The output arm and the buffer arm are arranged separately, which not only occupies a large space inside the mechanism, but also needs to be separately assembled and separately positioned. The assembly difficulty of the mechanism is increased; 2.
  • the damping effect of the buffer on the output shaft is the same during the opening and closing process, which is very inconsistent with the actual requirements of the spring operating mechanism, because in actual work, the buffer pair The smaller the impact of the closing process, the better.
  • the closing force of the closing spring is expected to be completely transmitted to the moving contact instead of Absorbed by the buffer, the buffer is more to absorb the force of the opening; 3.
  • the buffer has a damping effect on the output shaft at the beginning of the closing and opening of the moving and moving contacts, which will affect the movement.
  • the closing speed of the static contact and the initial speed of the opening are easy to be damaged by the arc.
  • the technical solution for integrating the arm in the present invention is:
  • the integrated arm includes a sleeve extending in the left-right direction, and the first, second, third and fourth mounting plates are sequentially arranged on the sleeve in the left-right direction, and the first mounting plate and the second mounting plate are provided with useful a connecting rod pin hole installed in the corresponding connecting member, a second mounting plate and a third mounting plate are provided with roller pin holes for corresponding opening energy storage roller mounting, and the third mounting plate and the fourth mounting plate are provided for corresponding Buffer pin hole for buffer connection.
  • the first mounting plate and the second mounting plate are further provided with a tweezers mounting hole for opening the dice.
  • the connecting rod pin hole is located outside the projection of the third mounting plate in the left-right direction; the roller pin hole is located outside the projection of the fourth mounting plate in the left-right direction, the connecting member pin hole and the roller pin hole
  • the buffer pin holes are staggered in the left-right direction.
  • the spring operating mechanism comprises a branching spring, a buffer, a connecting member connected to the opening spring through the opening spring chain, and an output shaft and an energy storage shaft extending in the left and right direction, and the energy storage shaft cam is disposed on the energy storage shaft
  • the output shaft is provided with an integrated arm, and the integrated arm includes a sleeve body which is sleeved on the output shaft, and the first, second, third and fourth mounting plates are sequentially arranged on the sleeve body in the left and right direction.
  • the first mounting plate and the second mounting plate are provided with connecting pin holes
  • the second mounting plate and the third mounting plate are provided with roller pin holes
  • the third mounting plate and the fourth mounting plate are provided with buffer pin holes.
  • the connecting member is connected to the integrated arm through a first pin shaft disposed in the pin hole of the connecting member, and the rolling pin hole is mounted on the pin pin hole through a second pin shaft for engaging with the energy storage shaft cam, and buffering
  • the device is coupled to the integrated arm by a third pin that is threaded through the bore of the bumper.
  • the first mounting plate and the second mounting plate are further provided with a tweezers mounting hole for opening the dice.
  • the connecting rod pin hole is located outside the projection of the third mounting plate in the left-right direction; the roller pin hole is located outside the projection of the fourth mounting plate in the left-right direction, the connecting member pin hole and the roller pin hole
  • the buffer pin holes are staggered in the left-right direction.
  • the buffer includes an inner cylinder extending in the front-rear direction of the axis, the inner cylinder of the inner cylinder is slidably fitted with a piston, the piston is provided with a piston rod, and the rear end of the piston rod is provided with a hinge hole, and the hinge hole has a length along the front and rear direction An elongated slot, the third pin is disposed in the hinge hole.
  • the outer cylinder is sleeved with an outer cylinder, and the inner and outer cylinders have an annular gap.
  • the cylinder of the inner cylinder is provided with a front radial oil hole and a rear radial oil hole communicating with the inner cavity of the inner cylinder and the annular gap.
  • the piston has a sliding fit section that is slidingly engaged with the piston rod guide.
  • the piston rod is provided with a front limit structure and a rear limit structure for limiting the forward and backward movement limit of the piston, and the spacing between the front and rear limit structures is larger than the sliding fit section.
  • the axial length of the piston is provided with an axial oil hole penetrating the piston in the front-rear direction, and the piston rod is provided with a front end hole or a rear end hole for blocking the axial oil hole on the front side or the rear side of the piston. Piston cover.
  • a piston cover is located at a rear side of the piston, a diameter of the rear radial oil hole is larger than a diameter of the front radial oil hole; or a piston cover is located at a front side of the piston, and a diameter of the rear radial oil hole is smaller than a front radial oil hole The aperture.
  • the piston cover is provided with an auxiliary separation hole penetrating the piston cover in the front-rear direction, and the auxiliary separation hole and the axial oil hole on the piston are mutually displaced in the front-rear direction.
  • the integrated arm of the present invention includes the first, second, third and fourth mounting plates arranged in an interval in the left-right direction, the connecting member pin hole and the roller pin hole share the second mounting plate, the roller pin The hole and the buffer pin hole share a third mounting plate, and the sleeve body of the integrated arm is assembled on the output shaft, and the connecting member, the opening storage roller and the buffer are respectively connected to the connecting pin hole and the roller pin hole.
  • the buffer pin hole the integrated arm has a simple structure, convenient assembly and small space occupied by the mechanism.
  • the hinge hole is a long hole extending in the front-rear direction
  • the integrated arm is connected to the piston rod through a third pin shaft disposed in the hinge hole, and the integrated arm moves the piston rod to move backward after closing
  • the pin shaft is located at the front end of the hinge hole.
  • the integrated arm first drives the pin shaft to move backward.
  • the hinge hole is a long hole, so the pin can be moved a certain distance in the hinge hole, and the piston rod does not move during the movement of the pin in the hinge hole, that is, the buffer has no damping effect on the integrated arm.
  • the pin Does not affect the initial closing speed of the moving contact, then the pin moves to the rear end of the hinge hole, the piston rod starts to move the piston backward; when the moving and static contacts need to be opened, the integrated arm drives the pin at Moving forward in the hinge hole, since the hinge hole is a long hole, the piston rod does not move forward at the beginning, that is, the buffer has no damping effect on the integrated arm and does not affect the initial opening of the moving contact. Degree, then the pin moves to the front end of the hinge hole, the piston rod starts to move the piston forward, and by setting a long hole, the initial speed of closing and opening of the moving contact can be ensured, and the structure of the buffer is very simple, and the production is made. low cost.
  • the inner cylinder and the annular gap of the inner cylinder are filled with hydraulic oil. If the integrated arm moves the piston rod backwards when the switch is closed, the piston cover is disposed on the rear side of the piston (if the arm is closed when the switch is closed) When the piston rod is moved forward, the piston cover is disposed on the front side of the piston. When the moving and static contacts are closed, the piston rod drives the piston to move backward, and the piston cover is separated from the piston by hydraulic oil or inertia.
  • the hydraulic oil on the side flows to the front side of the piston through two routes. One route is the rear radial oil hole, the annular gap and the front radial oil hole, and the other route is the axial oil hole on the piston, due to the hydraulic oil.
  • the flow area is large, so the damping effect of the buffer on the integrated arm is small, which reduces the influence of the damper on the movement of the moving contact during the closing process; when the moving and static contacts are opened, the piston rod drives The piston moves forward, the piston and the piston cover are in close contact, and the axial oil hole is blocked by the piston.
  • the hydraulic oil can only flow to the rear side of the piston through the front radial oil hole, the annular gap and the rear radial oil hole.
  • the oil has a small flow area, and the damper has a large damping effect on the integrated arm, thereby achieving different damping effects during the opening and closing operation.
  • FIG. 1 is a schematic structural view of an embodiment of a spring operating mechanism in the present invention
  • FIG. 2 is a schematic view showing the cooperation of the output shaft, the connecting member, the opening energy storage roller, the buffer and the integrated arm in FIG. 1;
  • Figure 3 is a schematic structural view of the integrated arm of Figure 2;
  • Figure 4 is a bottom view of Figure 3;
  • Figure 5 is a left side view of Figure 3;
  • Figure 6 is a cross-sectional view taken along line D-D of Figure 3;
  • Figure 7 is a perspective view of Figure 3;
  • Figure 8 is a schematic structural view of the buffer of Figure 2;
  • Figure 9 is a schematic structural view of the joint of Figure 8.
  • Figure 10 is a schematic structural view of the inner cylinder of Figure 8.
  • Figure 11 is a schematic structural view of the piston cover of Figure 8.
  • Figure 12 is a left side view of Figure 11;
  • Figure 13 is a schematic structural view of the piston of Figure 8.
  • Figure 14 is a left side view of Figure 13;
  • Figure 15 is a schematic view of the cooperation of the piston and the piston cover during the closing process
  • Figure 16 is a schematic view of the cooperation of the piston and the piston cover during the opening process
  • Figure 17 is a schematic view showing the cooperation of the opening and closing device of the opening and closing device of Figure 1.
  • the embodiment of the spring operating mechanism is as shown in FIGS. 1 to 17 : an opening spring, a closing spring, a buffer 28 and an output shaft 22 and an energy storage shaft 51 extending in the left-right direction, and energy storage is disposed on the energy storage shaft.
  • the shaft cam and the energy storage tweezers 54 connected to the closing spring by the closing spring chain 53 and the energy storage shaft are further provided with an energy storage shaft sprocket, and a closing and releasing device is arranged beside the energy storage shaft, and the spring operating mechanism is provided.
  • a motor that is coupled to the energy storage shaft sprocket through a transmission mechanism, wherein the transmission mechanism and the closing trip device are both prior art, and the specific structure thereof will not be described in detail.
  • the output shaft upper rotation sleeve is provided with an output arm and an integrated arm 21, and an output lever for connecting with the corresponding moving contact is connected to the output arm, and the integrated arm includes
  • the sleeve body 30 is sleeved on the output shaft, and the inner hole of the sleeve body is a spline hole, and the first, second, third and fourth mounting plates are sequentially arranged on the sleeve body in the left and right direction, first
  • the mounting plate 35 and the second mounting plate 24 are provided with connecting member pin holes 31, and the second mounting plate 24 and the third mounting plate 23 are provided with roller pin holes 32, and the third mounting plate 23 and the fourth mounting plate 27 are provided thereon.
  • a buffer pin hole 34 the connector pin hole is located outside the projection of the third mounting plate in the left-right direction; the roller pin hole is located outside the projection of the fourth mounting plate in the left-right direction, the connecting member pin hole, the roller pin hole and The buffer pin holes are staggered in the left-right direction.
  • a connecting member 25 is mounted in the connecting pin hole through the first pin shaft, and the connecting member is connected to the opening spring through the opening spring chain 26, and the second pin shaft is mounted in the roller pin hole for pushing and cooperating with the energy storage shaft cam
  • the buffer storage roller 29 is connected to the integrated arm by a third pin 57 that is inserted through the buffer pin hole.
  • the first mounting plate and the second mounting plate are further provided with a tweezers mounting hole, and the opening dice 59 is hingedly connected to the tweezing mounting hole through the fourth pin shaft, and a return spring is arranged between the integrated arm and the opening dice 60.
  • the integrated arm is further provided with a limit pin 61 for engaging with the opening of the opening dice.
  • the connecting dice is provided with a connecting plate, and the connecting plate is provided with a hinge axis centered on the opening dice The arc-shaped long hole is inserted into the curved long hole, and the limit pin is installed in the limit pin hole 33. Under normal conditions, the return spring keeps the opening dice in a fixed position, when closing The integrated arm rotates counterclockwise (the angle of view in Fig. 17).
  • the trip release device 58 Since the trip release device 58 is fixed at the time of closing, the trip dice will hit the trip release device and open the dice It will rotate counterclockwise, compress the return spring, and the opening dice will turn over the tripping trip device. When the closing arm rotates into position after the closing process, the dice will be returned to the original position by the return spring.
  • the opening dice are located on the right side of the trip release device, and the integrated arm is clockwise under the action of the opening spring The trend is, but the opening dice are blocked by the tripping device, so the opening spring is kept in the energy storage state. When the opening is required, the opening and tripping device can release the limit of the opening dice.
  • the trip release device belongs to the prior art, and its specific structure will not be described in detail.
  • the damper is a hydraulic damper, and the damper includes an inner cylinder 3 whose axis extends in the front-rear direction and an outer cylinder 1 which is coaxially sleeved on the outer periphery of the inner cylinder, and an annular gap between the inner and outer cylinders, and the cylinder of the inner cylinder
  • the front radial oil hole 18 and the rear radial oil hole 16 are connected to the inner cavity and the annular gap of the inner cylinder 3.
  • the closing spring releases energy
  • the piston rod moves backward
  • the aperture of 16 is greater than the aperture of the front 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 at the rear end of the rod body.
  • the joint 14 is provided with a hinge hole 15 and the hinge hole is A long hole extending in the front-rear direction, and a third pin 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 sliding with the inner cavity wall of the inner cylinder, the piston rod is provided with a front limit structure and a rear limit structure for limiting the forward and backward movement limit of the piston, and the spacing between the front and rear limit structures is greater than the axial length of the sliding fit section
  • the front and rear limit structures are respectively composed of a retaining ring 4 and a snap ring 6 which are assembled on the piston rod.
  • the inner ends of the sleeves and the rear ends of the sleeves are connected by an annular connecting plate 5-1.
  • the annular connecting plate is provided with an axial oil hole 17 extending through the annular connecting plate in the front-rear direction, and the axial oil hole includes four winding rings.
  • a lug hole uniformly arranged in the circumferential direction of the connecting plate, and a piston cover 7 for blocking the rear end opening of the axial oil hole 17 is disposed on the piston rod on the rear side of the piston, and the piston cover is opened through the piston cover in the front and rear direction
  • the auxiliary separation hole 19 is offset from the axial oil hole on the piston in the front-rear direction, and the rear end of the piston cover is provided with a chamfered structure 20.
  • Item 12 in the figure denotes a cover for preventing the piston and the piston cover from coming out of the inner cylinder;
  • Item 10 denotes a snap ring for limiting the cover 12;
  • Items 8, 9, and 11 each represent a seal ring;
  • Item 3 represents hydraulic oil.
  • 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 energy storage tweezers compresses the closing spring energy through the closing spring chain, and when the closing spring energy storage is in place, the closing tripping
  • the device cooperates with the energy storage energy storage tweezers to prevent the energy storage shaft from continuing to rotate, and the closing spring is maintained in the energy storage state.
  • the closing release device releases the energy storage tweezers.
  • the limit position under the action of the closing spring, the energy storage shaft sprocket drives the energy storage shaft to rotate.
  • the energy storage shaft cam cooperates with the opening energy storage roller on the integrated arm, and the integrated arm drives the output.
  • the hinge hole is a long hole extending in the front-rear direction, so that the piston rod does not move backwards at the beginning of the closing, the buffer does not dampen the integrated arm, and the initial speed of the closing of the moving contact is ensured, and then Pin movement to hinge
  • the piston rod starts to move the piston backward, and the hydraulic oil enters between the piston cover and the piston through the auxiliary separation hole, so that the piston cover and the piston are smoothly separated, and the axial oil hole on the piston is not blocked by the piston cover.
  • the hydraulic oil on the rear side of the piston flows to the front side of the piston through two lines.
  • One line is the axial oil hole on the piston, and the other line is the rear radial oil hole, the annular gap and the front radial oil hole.
  • the two lines ensure the two lines.
  • the flow area of the hydraulic oil reduces the damping effect of the hydraulic oil, 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 rear radial oil hole
  • the aperture is larger than the aperture of the front radial oil hole, which can further improve the flow capacity of the hydraulic oil, and further reduce the damping effect of the hydraulic oil.
  • the tripping trip device and the opening dice limit Cooperate to keep the trip spring in the energy storage state.
  • the tripping release device releases the limit of the opening dice
  • the opening spring drives the integrated arm to rotate
  • the output arm also drives the moving contact to move away from the corresponding static through the output rod.
  • the direction of the contact moves, the integrated arm moves the pin shaft forward, and 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, ensuring The initial speed of the moving contact is opened, and then the pin moves to the front end of the hinge hole, and the piston rod drives the piston to move forward.
  • the rear end of the piston is closely adhered to the front end of the piston cover by the hydraulic oil, and the axial oil hole on the piston Sealed by the piston cover, the hydraulic oil on the front side of the piston can only flow to the rear side of the piston through the front radial oil hole, the annular gap and the rear radial oil hole.
  • the flow area of the hydraulic oil is small, and the damping force of the hydraulic oil is large.
  • the damping effect of the buffer on the integrated arm is ensured, and the damping force of the hydraulic oil is further increased because the diameter of the front radial oil hole is smaller than the diameter of the rear radial oil hole.
  • 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, and the manufacturing cost of the buffer can be reduced;
  • the pin hole of the connecting member is located at the third The mounting plate is outside the projection in the left-right direction;
  • the pin hole of the roller is located outside the projection in the left-right direction of the fourth mounting plate, and the pin hole of the connecting member, the pin hole of the roller and the pin hole of the buffer are staggered in the left-right direction to ensure the corresponding The convenience of the pin during the assembly process.
  • the annular connecting plate is disposed at the front end of the inner casing, and the piston cover is disposed in front of the piston.
  • the diameter of the front radial oil hole is larger than the diameter of the rear radial oil hole; of course, the piston can also be a solid piston, in which the axial oil hole runs through the front and rear end faces of the solid piston; the auxiliary separation hole on the piston cover also It can be omitted.
  • the piston oil and the piston can be separated smoothly by the hydraulic oil in the peripheral clearance of the piston cover; the front and rear limit structures can also be the limit nut; the diameters of the front and rear radial oil holes can also be consistent.
  • the rod body and the joint of the piston rod can also be integrally formed; of course, the buffer can also be a pneumatic buffer, wherein the buffer can only include one cylinder, the cylinder is provided with a piston, and the piston rod is disposed on the piston;
  • the mounting hole of the dice on the arm may not be provided. At this time, other arm can be disposed on the output shaft, and the opening dice can be mounted on the corresponding arm.
  • the implementation of the integrated arm is as described in FIGS. 1-7 and 17: the specific structure of the integrated arm is the same as that of the integrated arm described in the above embodiments of the spring operating mechanism, and will not be described in detail herein.

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Abstract

本发明涉及集成拐臂及使用该集成拐臂的弹簧操动机构，集成拐臂包括轴线沿左右方向延伸的套体，套体上沿左右方向顺序间隔设置有第一、第二、第三和第四安装板，第一安装板和第二安装板上设置有用于相应连接件安装的连接件销孔，第二安装板和第三安装板上设有用于相应分闸储能滚轮安装的滚轮销孔，第三安装板和第四安装板上设有用于相应缓冲器连接的缓冲器销孔。本发明提供了一种可实现缓冲器、分闸储能滚轮和缓冲器同时安装的集成拐臂及使用该集成拐臂的弹簧操动机构。

Description

集成拐臂及使用该集成拐臂的弹簧操动机构 技术领域
本发明涉及断路器领域，尤其涉及一种集成拐臂及使用该集成拐臂的弹簧操动机构。
背景技术
弹簧操动机构是一个断路器性能好坏的关键，储能装置又是弹簧操动机构性能好坏的关键。现有的弹簧操动机构如中国专利CN202126942U公开的“一种适用于高压和超高压断路器的大功率弹簧操动机构”，该弹簧操动机构包括储能装置，储能装置包括电机和储能轴，储能轴上设置有通过合闸弹簧链条与相应合闸弹簧连接的储能掣子，储能轴上固设有储能轴凸轮和储能轴链轮，储能轴旁设置有与储能掣子配合的合闸脱扣装置，储能轴链轮通过传动机构与电机的动力输出端传动连接，弹簧操动机构还包括与储能轴平行设置的输出轴，输出轴上装配有缓冲器拐臂和输出拐臂，在输出拐臂上设置有用于与储能轴凸轮顶推配合的分闸储能滚轮和通过分闸弹簧链条与相应分闸弹簧连接的连接件，分闸储能滚轮、连接件均通过销轴装配于输出拐臂上，缓冲器拐臂上通过销轴连接有缓冲器，输出拐臂上还连接有与相应动触头传动连接的输出拉杆。输出拐臂旁设置有用于与输出拐臂限位配合的分闸脱扣装置。
该弹簧操动机构的工作过程为：当需要合闸弹簧储能时，电机带动储能轴转动，储能轴上的接头通过链条拉动合闸弹簧储能，在储能结束后合闸脱扣装置与储能轴链轮上的储能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储能掣子的限位，合闸弹簧释放能量，储能轴上的储能轴凸轮带动输出轴转动，输出拐臂带动分闸弹簧储能，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。现有的这种弹簧操动机构储能装置存在的问题在于：1、输出拐臂和缓冲器拐臂分体设置，不仅会占用机构内部较大空间，而且也需要分别单独装配、单独定位，增加了机构的装配难度；2、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；3、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可实现缓冲器、分闸储能滚轮和缓冲器同时安装的集成拐臂；本发明的目的还在于提供一种使用该集成拐臂的弹簧操动机构。
为了解决上述问题，本发明中集成拐臂的技术方案为：
集成拐臂，包括轴线沿左右方向延伸的套体，套体上沿左右方向顺序间隔设置有第一、第二、第三和第四安装板，第一安装板和第二安装板上设置有用于相应连接件安装的连接件销孔，第二安装板和第三安装板上设有用于相应分闸储能滚轮安装的滚轮销孔，第三安装板和第四安装板上设有用于相应缓冲器连接的缓冲器销孔。
所述第一安装板和第二安装板上还设有用于分闸掣子安装的掣子安装孔。
所述连接件销孔位于所述第三安装板在左右方向上的投影之外；所述滚轮销孔位于所述第四安装板左右方向上的投影之外，连接件销孔、滚轮销孔和缓冲器销孔在左右方向上错开设置。
本发明中弹簧操动机构的技术方案为：
弹簧操动机构，包括分闸弹簧、缓冲器、通过分闸弹簧链条与分闸弹簧连接的连接件和轴线沿左右方向延伸的输出轴和储能轴，储能轴上设置有储能轴凸轮，输出轴上设置有集成拐臂，集成拐臂包括止转套设于输出轴上的套体，套体上沿左右方向顺序间隔设置有第一、第二、第三和第四安装板，第一安装板和第二安装板上设置有连接件销孔，第二安装板和第三安装板上设有滚轮销孔，第三安装板和第四安装板上设有缓冲器销孔，连接件通过穿设于连接件销孔中的第一销轴与集成拐臂相连，滚轮销孔上通过第二销轴安装有用于与储能轴凸轮顶推配合的分闸储能滚轮，缓冲器通过穿设于缓冲器销孔中的第三销轴与集成拐臂相连。
所述第一安装板和第二安装板上还设有用于分闸掣子安装的掣子安装孔。
所述连接件销孔位于所述第三安装板在左右方向上的投影之外；所述滚轮销孔位于所述第四安装板左右方向上的投影之外，连接件销孔、滚轮销孔和缓冲器销孔在左右方向上错开设置。
所述缓冲器包括轴线沿前后方向延伸的内缸，内缸的内腔中导向滑动装配有活塞，活塞上设置有活塞杆，活塞杆的后端设置有铰接孔，铰接孔为长度沿前后方向延伸的长孔，所述第三销轴穿设于所述铰接孔中。
内缸的外围套设有外缸，内、外缸之间具有环形间隙，内缸的缸体上设有连通内缸的内腔与环形间隙的前径向油孔和后径向油孔，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前后移动极限的前限位结构和后限位结构，前、后限位结构之间的间距大于滑动配合段的轴向长度，活塞上设置有沿前后方向贯穿活塞的轴向油孔，活塞杆上于活塞的前侧或后侧设置有用于封堵轴向油孔的前端孔口或后端孔口的活塞盖。
活塞盖位于活塞的后侧，所述后径向油孔的孔径大于前径向油孔的孔径；或者活塞盖位于活塞的前侧，所述后径向油孔的孔径小于前径向油孔的孔径。
所述活塞盖上开设有沿前后方向贯穿所述活塞盖的助分离孔，在前后方向上所述助分离孔与活塞上的轴向油孔相互错开。
本发明的有益效果为：本发明中集成拐臂包括沿左右方向间隔顺序设置第一、第二、第三和第四安装板，连接件销孔和滚轮销孔共用第二安装板，滚轮销孔和缓冲器销孔共用第三安装板，使用时将集成拐臂的套体套装在输出轴上，分别将连接件、分闸储能滚轮和缓冲器连接在连接件销孔、滚轮销孔和缓冲器销孔上，集成拐臂的结构简单、装配方便且占用机构空间小。
进一步的，铰接孔为一个长度沿前后方向延伸的长孔，集成拐臂通过穿设于铰接孔中的第三销轴与活塞杆相连，现以合闸时集成拐臂带动活塞杆后移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，销轴位于铰接孔的前端，当动、静触头开始合闸时，集成拐臂先带动销轴后移，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，也就是说缓冲器对集成拐臂没有阻尼作用，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后端，活塞杆开始带动活塞朝后移动；在需要动、静触头分闸时，集成拐臂带动销轴在铰接孔中朝前移动，由于铰接孔为一个长孔，因此在最初，活塞杆并不会朝前移动，也就是说缓冲器对集成拐臂没有阻尼作用，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前端，活塞杆开始带动活塞朝前移动，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。
进一步的，使用时在内缸的内腔和环形间隙中填充液压油，如果合闸时集成拐臂带动活塞杆朝后移动，那么活塞盖设置于活塞的后侧(如果合闸时集成拐臂带动活塞杆朝前移动，那么活塞盖设置于活塞的前侧)，当动、静触头合闸时，活塞杆带动活塞朝后移动，受液压油或惯性作用活塞盖与活塞脱离，活塞后侧的液压油经过两条路线流向活塞前侧，一条路线是后径向油孔、环形间隙和前径向油孔，另一条路线是活塞上的轴向油孔，由于液压油 的流通面积大，因此缓冲器对集成拐臂的阻尼作用就小，这就降低了合闸过程中阻尼器对动触头运动的影响力；在动、静触头分闸时，活塞杆带动活塞朝前移动，活塞与活塞盖紧贴着，轴向油孔被活塞封堵，液压油只能经前径向油孔、环形间隙和后径向油孔这一个路线流向活塞后侧，液压油的流通面积小，缓冲器对集成拐臂的阻尼作用较大，从而实现分合闸操作时不同的阻尼效果。
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中输出轴、连接件、分闸储能滚轮、缓冲器与集成拐臂的配合示意图；
图3是图2中集成拐臂的结构示意图；
图4是图3的仰视图；
图5是图3的左视图；
图6是图3的D-D向剖视图；
图7是图3的立体图；
图8是图2中缓冲器的结构示意图；
图9是图8中接头的结构示意图；
图10是图8中内缸的结构示意图；
图11是图8中活塞盖的结构示意图；
图12是图11的左视图；
图13是图8中活塞的结构示意图；
图14是图13的左视图；
图15是合闸过程中活塞与活塞盖的配合示意图；
图16是分闸过程中活塞与活塞盖的配合示意图；
图17是图1中分闸掣子与分闸脱扣装置的配合示意图。
具体实施方式
弹簧操动机构的实施例如图1～17所示：包括分闸弹簧、合闸弹簧、缓冲器28和轴线沿左右方向延伸的输出轴22和储能轴51，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54，储能轴上还设置有储能轴链轮，储能轴旁设置有合闸脱扣装置，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，其中传动机构和合闸脱扣装置均属于现有技术，其具体结构不再详细说明。输出轴上止转套设有输出拐臂和集成拐臂21，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，集成拐臂包括 止转套设于输出轴上的套体30，套体的内孔为一个花键孔，套体上沿左右方向顺序间隔设置有第一、第二、第三和第四安装板，第一安装板35和第二安装板24上设置有连接件销孔31，第二安装板24和第三安装板23上设有滚轮销孔32，第三安装板23和第四安装板27上设有缓冲器销孔34，连接件销孔位于第三安装板在左右方向上的投影之外；滚轮销孔位于第四安装板左右方向上的投影之外，连接件销孔、滚轮销孔和缓冲器销孔在左右方向上错开设置。连接件销孔中通过第一销轴安装有连接件25，连接件通过分闸弹簧链条26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顶推配合的分闸储能滚轮29，缓冲器28通过穿设于缓冲器销孔中的第三销轴57与集成拐臂相连。第一安装板和第二安装板上还设有掣子安装孔，分闸掣子59通过第四销轴与掣子安装孔铰接相连，集成拐臂与分闸掣子之间设有复位簧60，集成拐臂上还设置有用于与分闸掣子限位配合的限位销61，分闸掣子上设置有连接板，连接板上设置有以分闸掣子的铰接轴线为中心的弧形长孔，限位销插装于弧形长孔中，限位销装在限位销孔33中，在正常情况下复位簧将分闸掣子保持于固定的位置，当合闸时，集成拐臂逆时针旋转(图17中的视角)，由于分闸脱扣装置58在合闸时是固定不动的，所以分闸掣子会碰到分闸脱扣装置，分闸掣子便会逆时针旋转，压缩复位簧，分闸掣子会转过分闸脱扣装置，当合闸过程结束即集成拐臂旋转到位后，在复位簧的作用下分闸掣子回到原来的位置，分闸掣子位于分闸脱扣装置的右侧，此时集成拐臂在分闸弹簧作用下具有顺时针转动趋势，但是分闸掣子被分闸脱扣装置挡止，因此分闸弹簧保持于储能状态，当需要分闸时，分闸脱扣装置解除对分闸掣子的限位即可，分闸脱扣装置属于现有技术，其具体结构不再详述。缓冲器为液压缓冲器，缓冲器包括轴线沿前后方向延伸的内缸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的内腔与环形间隙的前径向油孔18和后径向油孔16，本实施例中在合闸弹簧释放能量时，活塞杆朝后移动，后径向油孔16的孔径大于前径向油孔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及设置于杆体后端的接头14，接头14上设置有铰接孔15，铰接孔为长度沿前后方向延伸的长孔，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前后移动极限的前限位结构和后限位结构，前、后限位结构之间的间距大于滑动配合段的轴向长度，前、后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、套的后端之间通过环形连板5-1连接，环形连板上设置有沿前后方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，活塞杆上于活塞的后侧设置有用于封堵轴向油孔17的后端孔口的活塞盖7，活塞盖上开设有沿前后方向贯穿活塞盖的助分离孔19，在前后方向上所述助分离孔与活塞上的轴向油孔相互错开，活塞盖的后端设置有倒角结构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3表示液压油。
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，储能掣子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储能掣子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，与此同时集成拐臂带动销轴朝后移动，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，活塞杆并不向后移动，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后端，活塞杆开始带动活塞朝后移动，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，活塞后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，另一条线路是后径向油孔、环形间隙和前径向油孔，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，而由于后径向油孔的孔径大于前径向油孔的孔径，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掣子限位配合，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掣子的限位，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前移动，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前端，活塞杆带动活塞朝前移动，受液压油作用活塞的后端与活塞盖的前端紧贴，活塞上的轴向油孔被活塞盖封堵，活塞前侧的液压油只能通过前径向油孔、环形间隙和后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，而由于前径向油孔的孔径小于后径向油孔的孔径，进一步的增加了液压油的阻尼力。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；连接件销孔位于第三 安装板在左右方向上的投影之外；滚轮销孔位于第四安装板左右方向上的投影之外，连接件销孔、滚轮销孔和缓冲器销孔在左右方向上错开设置，保证了对应销轴在装配过程中的方便性。
在本弹簧操动机构的其它实施例中，如果在合闸时，机构输出拐臂带动活塞杆朝前移动，那么环形连板要设置于内、外套的前端，活塞盖要设置于活塞的前侧，前径向油孔的孔径要大于后径向油孔的孔径；当然活塞还可以是实心活塞，此时轴向油孔贯穿实心活塞的前、后端面；活塞盖上的助分离孔也可以不设，此时依靠活塞盖外围间隙中的液压油液可以使活塞盖与活塞顺利分离；前、后限位结构还可以是限位螺母；前、后径向油孔的孔径也可以一致；活塞杆的杆体和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；集成拐臂上的掣子安装孔也可以不设，此时可以在输出轴上设置其它的拐臂，将分闸掣子安装于对应拐臂上。
集成拐臂的实施例如图1～7和图17所述：集成拐臂的具体结构与上述各弹簧操动机构实施例中所述的集成拐臂相同，在此不再详述。

Claims (10)

  1. 集成拐臂，其特征在于：包括轴线沿左右方向延伸的套体，套体上沿左右方向顺序间隔设置有第一、第二、第三和第四安装板，第一安装板和第二安装板上设置有用于相应连接件安装的连接件销孔，第二安装板和第三安装板上设有用于相应分闸储能滚轮安装的滚轮销孔，第三安装板和第四安装板上设有用于相应缓冲器连接的缓冲器销孔。
  2. 根据权利要求1所述的集成拐臂，其特征在于：所述第一安装板和第二安装板上还设有用于分闸掣子安装的掣子安装孔。
  3. 根据权利要求1或2所述的集成拐臂，其特征在于：所述连接件销孔位于所述第三安装板在左右方向上的投影之外；所述滚轮销孔位于所述第四安装板左右方向上的投影之外，连接件销孔、滚轮销孔和缓冲器销孔在左右方向上错开设置。
  4. 弹簧操动机构，包括分闸弹簧、缓冲器、通过分闸弹簧链条与分闸弹簧连接的连接件和轴线沿左右方向延伸的输出轴和储能轴，储能轴上设置有储能轴凸轮，其特征在于：输出轴上设置有集成拐臂，集成拐臂包括止转套设于输出轴上的套体，套体上沿左右方向顺序间隔设置有第一、第二、第三和第四安装板，第一安装板和第二安装板上设置有连接件销孔，第二安装板和第三安装板上设有滚轮销孔，第三安装板和第四安装板上设有缓冲器销孔，连接件通过穿设于连接件销孔中的第一销轴与集成拐臂相连，滚轮销孔上通过第二销轴安装有用于与储能轴凸轮顶推配合的分闸储能滚轮，缓冲器通过穿设于缓冲器销孔中的第三销轴与集成拐臂相连。
  5. 根据权利要求4所述的弹簧操动机构，其特征在于：所述第一安装板和第二安装板上还设有用于分闸掣子安装的掣子安装孔。
  6. 根据权利要求4所述的弹簧操动机构，其特征在于：所述连接件销孔位于所述第三安装板在左右方向上的投影之外；所述滚轮销孔位于所述第四安装板左右方向上的投影之外，连接件销孔、滚轮销孔和缓冲器销孔在左右方向上错开设置。
  7. 根据权利要求4～6任意一项所述的弹簧操动机构，其特征在于：所述缓冲器包括轴线沿前后方向延伸的内缸，内缸的内腔中导向滑动装配有活塞，活塞上设置有活塞杆，活塞杆的后端设置有铰接孔，铰接孔为长度沿前后方向延伸的长孔，所述第三销轴穿设于所述铰接孔中。
  8. 根据权利要求7所述的弹簧操动机构，其特征在于：内缸的外围套设有外缸，内、外缸之间具有环形间隙，内缸的缸体上设有连通内缸的内腔与环形间隙的前径向油孔和后径向油孔，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前后移动极限的前限位结构和后限位结构，前、后限位结构之间的间距大于滑动配合段的轴向长度， 活塞上设置有沿前后方向贯穿活塞的轴向油孔，活塞杆上于活塞的前侧或后侧设置有用于封堵轴向油孔的前端孔口或后端孔口的活塞盖。
  9. 根据权利要求8所述的弹簧操动机构，其特征在于：活塞盖位于活塞的后侧，所述后径向油孔的孔径大于前径向油孔的孔径；或者活塞盖位于活塞的前侧，所述后径向油孔的孔径小于前径向油孔的孔径。
  10. 根据权利要求8所述的弹簧操动机构，其特征在于：所述活塞盖上开设有沿前后方向贯穿所述活塞盖的助分离孔，在前后方向上所述助分离孔与活塞上的轴向油孔相互错开。
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CN108262471A (zh) * 2018-03-28 2018-07-10 河南熔金高温材料股份有限公司 钢包机构曲柄支架可调式定位装置
CN108262471B (zh) * 2018-03-28 2024-03-19 河南熔金高温材料股份有限公司 钢包机构曲柄支架可调式定位装置
CN112466688A (zh) * 2019-09-06 2021-03-09 河南森源电气股份有限公司 操动机构及其拐臂
CN114743823A (zh) * 2021-01-07 2022-07-12 天津平高智能电气有限公司 一种三工位开关操动机构
CN114743823B (zh) * 2021-01-07 2023-09-01 天津平高智能电气有限公司 一种三工位开关操动机构

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