Main shaft linkage structure for switch operating mechanism

Abstract

The utility model relates to a main shaft linkage structure for a switch operating mechanism, which comprises a main shaft, the main shaft is rotatably assembled with a turbine, the upper part of the main shaft is provided with a push plate, and one end part of the push plate far away from the main shaft is provided with a push part and a trigger part; a first pushing groove and a second pushing groove are formed in one side of the sliding plate, and the first pushing groove and the second pushing groove are open and allow the pushing part to selectively enter and be in transmission fit with the pushing part; the other side of the sliding plate is provided with a hinge slot hole, the hinge slot hole is hinged with one end of a crank arm in the auxiliary switch, and the sliding plate linearly acts to drive the crank arm to rotate; and the microswitch is positioned on the rotating track of the triggering part and can be triggered by the triggering part. According to the main shaft linkage structure, the structure is simplified, the design is ingenious, and mechanism linkage triggered by the microswitch and the auxiliary switch is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch operating mechanism technical field, concretely relates to a main shaft linkage structure for switch operating mechanism. BACKGROUND

[0002] The isolating switch operating mechanism is an electrical control device for operating high-voltage circuit breakers, high-voltage load switches and high-voltage isolating switches, and is mainly used for switching on and off the switch device.

[0003] A utility model discloses a precise positioning three-position switch operating mechanism in the authorized announcement No. CN201181670Y, mainly including motor, gear transmission pair, worm gear pair, worm gear pair one side is equipped with balance wheel, balance wheel is used for with the pin on worm gear pair cooperation, balance wheel is equipped with power output shaft. When the mechanism state switches, the pin on the worm gear pair rotates with the turbine, and pushes the balance wheel to rotate. The balance wheel is provided with a power output shaft, and the power output shaft is connected with an auxiliary switch connecting rod. The auxiliary switch connecting rod is connected with an auxiliary switch for indicating different switch states. The balance wheel side is provided with irregular concave-convex structure for corresponding different position travel switch. The balance wheel rotates to the set position and can trigger the corresponding travel switch. The power output shaft in the mechanism has three position states, and the structure is relatively complex. For some switch devices, only two positions of on and off are needed to control, and the structure is not suitable. The complex structure is embodied in that the shaft where the turbine is located is not coaxial with the shaft where the balance wheel is located. The balance wheel occupies a large space, and an auxiliary switch connecting rod is further arranged on the balance wheel. In addition, when the balance wheel moves, there is inertia action, which affects the accuracy of the rotation angle. CONTENT

[0004] The utility model discloses a main shaft linkage structure for switch operating mechanism, to solve the problem of complex structure design of triggering corresponding switch.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The main shaft linkage structure for switch operating mechanism, including the main shaft, the main shaft is rotationally assembled with the turbine, and the upper portion of the main shaft is provided with a push plate. The push plate is provided with a pushing part and a triggering part at the end portion away from the main shaft.

[0007] The slide plate is provided with a first push groove and a second push groove on one side. The first push groove and the second push groove are both open and are used for selectively entering and drivingly cooperating with the pushing part. The other side of the slide plate is provided with a hinged long hole, which is hinged with one end of the toggle arm in the auxiliary switch. The slide plate linearly acts to drive the toggle arm to rotate.

[0008] The micro switch is located on the rotation track of the triggering part and can be triggered by the triggering part.

[0009] Further, the slide plate is provided with a plurality of positioning long grooves, and the length direction of the positioning long grooves is consistent with the movement direction of the slide plate.

[0010] Further, the slide plate is arranged on the top plate of the switch operating mechanism shell, and the top plate is provided with a positioning bolt, and the positioning bolt passes through the positioning long groove.

[0011] Further, the side, away from the first push groove, of the second push groove is provided with a guide inclined surface.

[0012] Further, the slide plate is provided with a buffer part between the first push groove and the second push groove, and the buffer part has an arc-shaped groove towards the side of the main shaft.

[0013] Further, the main shaft is provided with an auxiliary push disc, and the auxiliary push disc is a disc, and the outer periphery of the auxiliary push disc has a notch, and in one section of the rotation of the auxiliary push disc, one end of the buffer part is located in the notch.

[0014] Further, the push plate comprises a first push plate and a second push plate, the first push plate is connected to the end face of the main shaft through a bolt, the second push plate is connected to the side, away from the main shaft, of the first push plate through a bolt, and the pushing part and the triggering part are both arranged on the second push plate.

[0015] Further, the pushing part is formed by one of the bolts connecting the first push plate and the second push plate.

[0016] Further, the pushing part is formed by the cylindrical head of the hexagonal socket head bolt.

[0017] The utility model discloses beneficial effects:

[0018] In the utility model, the turbine is directly assembled on the main shaft, and the structure design is optimized, and the components of the triggering microswitch (corresponding to the travel switch in the prior art) and the auxiliary switch are directly linked with the main shaft, that is, when the main shaft rotates to a certain angle, drives the push plate to trigger one of the microswitches, simultaneously, the push plate links the slide plate and triggers the auxiliary switch, when the main shaft reversely rotates to a certain angle, drives the push plate to trigger the other microswitch, simultaneously, the push plate links the slide plate and triggers the auxiliary switch.

[0019] Further, an auxiliary push disc is arranged on the main shaft and rotates synchronously with the main shaft, in the process that the push plate drives the slide plate to act, one end of the auxiliary push disc can contact and cooperate with the slide plate, plays a certain buffering role, makes the slide plate move to the set position without position deviation due to inertia, thereby guaranteeing that the push plate can drive the slide plate to act in the process of forward and reverse rotation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1This is a schematic diagram of the switch operating mechanism with the main shaft linkage structure installed behind the operating mechanism frame;

[0021] Figure 2 yes Figure 1 Partial structural diagram shown (the push plate is in the first state);

[0022] Figure 3 yes Figure 1 Partial structural diagram shown (the push plate is in the second state).

[0023] 1. Motor; 21. Worm; 22. Turbine; 31. Connecting bolt; 32. Driving bolt; 33. Positioning bolt; 4. Top plate; 51. First microswitch; 52. Second microswitch; 6. Push plate; 61. First push plate; 62. Second push plate; 621. Trigger unit; 7. Slide plate; 71. Positioning slot; 72. Articulated slot; 73. First push slot; 74. Second push slot; 75. Arc slot; 76. Guide ramp; 8. Auxiliary switch; 81. Crank arm; 9. Auxiliary push plate; 91. Notch. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0025] Embodiments of the present utility model:

[0026] like Figures 1-3 As shown, the switch operating mechanism uses a main shaft linkage structure, including a main shaft. The main shaft and the turbine 22 are rotationally assembled through bearings, that is, the main shaft and the turbine 22 rotate asynchronously, but the turbine can drive a push plate assembled with the main shaft through an eccentrically arranged bolt. The push plate rotates synchronously with the main shaft. The outer peripheral surface of the push plate is provided with an open groove for the bolt to extend into. The turbine 22 is matched with the worm 21 for transmission. A gear is provided at one end of the worm 21, which is recorded as the worm 21 gear. The worm 21 gear is meshed with the motor 1 gear for transmission. The motor 1 gear is located on the motor 1 shaft of the motor 1, and the motor 1 shaft and the worm 21 are arranged parallel. Other transmission parts and limiting structures (limiting the main shaft rotation angle) are not the protection content of the utility model and will not be described in detail. The utility model focuses on the structure that can be linked to trigger the micro switch and the auxiliary switch 8 when the main shaft rotates.

[0027] like Figures 2-3 As shown, a push plate 6 is provided on the upper portion of the main shaft, and a pushing portion and a trigger portion 621 are provided on an end portion of the push plate 6 away from the main shaft.

[0028] likeFigures 2-3 As shown, the push plate 6 includes a first push plate 61 and a second push plate 62. The first push plate 61 is connected to the upper end surface of the main shaft by three bolts, and the first push plate 61 is arranged perpendicularly to the main shaft. For the convenience of distinguishing the bolts at different positions, the bolts connecting the first push plate 61 to the main shaft are defined as connecting bolts 31. The second push plate 62 is connected to a section of the first push plate 61 away from the main shaft by two bolts, and the pushing part and the triggering part 621 are both on the second push plate 62. The length of the second push plate 62 is less than that of the first push plate 61, which is equivalent to increasing the overall thickness of the plate in the area where the second push plate 62 is located.

[0029] As shown in Figure 2 , the two bolts connecting the first push plate 61 and the second push plate 62 are both hexagonal head bolts. Among them, the hexagonal head of one hexagonal head bolt near the main shaft is on the upper side of the second push plate 62; and the hexagonal head of the other hexagonal head bolt is on the lower side of the first push plate 61, and the pushing part is formed by the hexagonal head, which is defined as the driving bolt 32.

[0030] As shown in Figures 2-3 , the main shaft linkage structure further includes a sliding plate 7. One side of the sliding plate 7 is provided with a first push groove 73 and a second push groove 74. The first push groove 73 is located on the left side, and the second push groove 74 is located on the right side. Both the first push groove 73 and the second push groove 74 are open, and the pushing part described above can selectively enter and transmit with them, but they are not always in a matching state. The main purpose is to realize the movement of the sliding plate 7 in the left and right directions.

[0031] The second push groove 74 is provided with a guide inclined surface 76 on one side, which facilitates the entry of the pushing part.

[0032] The sliding plate 7 is provided with four positioning long grooves 71, and the length direction of the positioning long grooves 71 is consistent with the movement direction of the sliding plate 7. In other embodiments, the number of positioning long grooves 71 can also be changed, such as two or three. The sliding plate 7 is located above the frame of the operating mechanism, and the top plate 4 of the frame is provided with a bolt hole. The positioning bolt 33 is located in the bolt hole and passes through the positioning long groove 71. Under the cooperation of the positioning bolt 33 and the positioning long groove 71, the sliding plate 7 can only move in the left and right directions, and its stroke is limited by the positioning long groove 71.

[0033] As shown in Figure 2 , the right end of the sliding plate 7 is provided with a hinged long hole 72, which is hinged with one end of the toggle arm 81 in the auxiliary switch 8. The straight-line action of the sliding plate 7 drives the toggle arm 81 to rotate, thereby triggering the auxiliary switch 8 to act. The sliding plate 7 can only move linearly left and right, but due to the design of the hinged long hole 72 on the sliding plate 7, when driving the toggle arm 81 to rotate, it will not appear to be stuck.

[0034] As shown in Figures 2-3As shown, the main shaft linkage structure further comprises two left and right spaced micro switches, the micro switches are located on the rotation track of the trigger part 621 and can be triggered by the trigger part 621. For the convenience of description, it is defined as the first micro switch 51 and the second micro switch 52. Figure 2 As shown, the push plate 6 rotates to the position in contact with the first micro switch 51. Figure 3 As shown, the push plate 6 rotates to the position in contact with the second micro switch 52.

[0035] In Figure 2 As shown, the pushing part at the end of the push plate 6 is located in the first push groove 73, when the push plate 6 rotates counterclockwise along with the main shaft, the push plate 6 can drive the slide plate 7 to move left, and the pushing part gradually leaves the first push groove 73; the push plate 6 continues to rotate, and the push plate 6 rotates to the state shown in Figure 3 As shown, the pushing part enters the second push groove 74, the second micro switch 52 is triggered, and in the process of the pushing part entering the second push groove 74, the slide plate 7 moves left to the position, and the right end drives the crank arm 81 to rotate to the position, triggering the auxiliary switch 8. The push plate 6 changes from Figure 3 to Figure 2 As shown, the main shaft drives the push plate 6 to rotate clockwise. Figure 2 And Figure 3 The two states correspond to the two positions of the disconnecting switch.

[0036] Further, in order to improve the accuracy of movement, a buffer part is arranged between the first push groove 73 and the second push groove 74 on the slide plate 7, and the buffer part has an arc-shaped groove 75 towards the side of the main shaft.

[0037] As Figures 2-3 shown, the main shaft is assembled with an auxiliary push disc 9, and the two can be coupled by a flat key to realize synchronous rotation of the auxiliary push disc 9 and the main shaft. The auxiliary push disc 9 is a disc, and the outer periphery of the auxiliary push disc 9 has a notch 91, and one end of the buffer part is located in the notch 91 in one of the rotation strokes of the auxiliary push disc 9. Figure 2 In the state, when the auxiliary push disc 9 rotates counterclockwise, since the right part of the notch 91 of the auxiliary push disc 9 is located in the arc-shaped groove 75 of the slide plate 7, it can buffer the left movement of the slide plate 7, prevent the slide plate 7 from moving left suddenly, and by controlling the action characteristics, it can be ensured that when the push plate 6 rotates counterclockwise to the second push groove 74 area, the pushing part on the push plate 6 can smoothly enter the second push groove 74. Similarly, when the push plate 6 switches from Figure 3 to Figure 2 the state clockwise, it can also have a buffering effect.

[0038] The "connection" of the utility model, if no special description, all includes direct and indirect connection. In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0039] In the utility model, unless another explicit provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

Claims

1. The main shaft linkage structure for the switch operating mechanism is characterized by: The main shaft is assembled with a turbine, and a push plate is arranged on the upper part of the main shaft. The slide plate is provided with a first push groove and a second push groove on one side, and the first push groove and the second push groove are both open and arranged for the push part to selectively enter and drive the push part.

2. The main shaft linkage structure for a switch operating mechanism according to claim 1, characterized in that: The slide plate is provided with a plurality of positioning long grooves, and the length direction of the positioning long grooves is consistent with the movement direction of the slide plate.

3. The main shaft linkage structure for a switch operating mechanism according to claim 2, characterized in that: The slide plate is arranged on the top plate of the switch operating mechanism shell, and the top plate is provided with a positioning bolt which passes through the positioning long groove.

4. The main shaft linkage structure for a switch operating mechanism according to claim 1, characterized in that: The side of the second push groove away from the first push groove is provided with a guide inclined surface.

5. The main shaft linkage structure for a switch operating mechanism according to claim 1, characterized in that: The slide plate is provided with a buffer part between the first push groove and the second push groove, and the buffer part has an arc-shaped groove towards the side of the main shaft.

6. The main shaft linkage structure for a switch operating mechanism according to claim 5, characterized in that: The main shaft is assembled with an auxiliary push disc, and the auxiliary push disc is a disc.

7. The main shaft linkage structure for a switch operating mechanism according to any one of claims 1 to 6, characterized in that: The push plate includes a first push plate and a second push plate, the first push plate is connected to the end face of the main shaft by a bolt, and the second push plate is connected to the side away from the main shaft of the first push plate by a bolt.

8. The main shaft linkage structure for a switch operating mechanism according to claim 7, characterized in that: The push part is formed by one of the bolts connecting the first push plate and the second push plate.

9. The main shaft linkage structure for a switch operating mechanism according to claim 8, characterized in that: The push part is formed by the cylindrical head of the hexagonal cylindrical head bolt.

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