Modularized spring operating mechanism for switching-on and switching-off half-shaft type tripping

Abstract

The utility model discloses a switching-on and switching-off half-shaft type tripping modular spring operating mechanism, which comprises a frame, the frame is provided with a driving device, a tripping mechanism, a switching-on device, a switching-off device, an energy storage spring and a large gear, the frame is provided with a rotatable switching-off half shaft and a switching-on half shaft, and the switching-off half shaft is provided with a driving device, a tripping mechanism, a switching-on device, a switching-off device, an energy storage spring and a large gear. And the front and back are arranged in parallel. According to the utility model, the driving device, the tripping mechanism, the closing device, the opening device, the energy storage spring and the bull gear are integrated and installed on the frame through reasonable design and reasonable layout, so that the overall volume is reduced and modularization is completed, and meanwhile, the moving strokes of the opening device and the closing device can be respectively enabled to be the same through the opening half shaft and the closing half shaft; parts of the same size are achieved, so that the parts of the same size are used during assembly, the number of needed parts of different sizes is reduced, the parts are unified, the assembly cost is reduced, and the product has the advantages of modularization, conciseness and compactness.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a modular spring operating mechanism for closing and opening half-shaft release. Background Art

[0002] The vacuum circuit breaker is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; it has the advantages of small size, light weight, suitable for frequent operation, and arc extinguishing without maintenance, and is widely used in distribution networks. Vacuum circuit breakers are equipped with spring operating mechanisms for closing or opening the vacuum circuit breaker, which are divided into manual spring operating mechanisms and electric spring operating mechanisms.

[0003] The existing spring operating mechanism is generally directly installed in the vacuum circuit breaker. Due to the large number of components, the related product mechanism is likely to be large in size, complicated to install, unclear in operation, prone to problems during operation, poor reliability, and inconvenient for later maintenance. Therefore, the applicant has made a useful design and found a solution to the above problems. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional spring operating mechanism design and provide a modular, simple and compact product.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A modular spring operating mechanism for closing and opening half-shaft type release, comprising a frame, wherein the frame is provided with a driving device, a release mechanism, a closing device, an opening device, an energy storage spring, and a large gear. The frame is provided with a rotatable opening half-shaft and a closing half-shaft, which are arranged in parallel front and back, the opening half-shaft is linked to the opening device, and the closing half-shaft is linked to the closing device; one end of the energy storage spring is linked to the large gear, and the other end is fixed to the frame for energy storage; the driving device engages the large gear to provide rotational power for the large gear; the large gear is rotated to store energy in the energy storage spring, so that the large gear is buckled on the closing device and forms a first locking holding point with it; when pressure is applied to the closing device, the first locking holding point with the large gear is released, so that the energy storage spring releases energy; the release mechanism is rotated to form a second locking holding point between the release mechanism and the opening device; when pressure is applied to the opening device, the release mechanism is driven to rotate and release the second locking holding point.

[0007] Preferably, the frame is further provided with a first rotating shaft, a second rotating shaft, a first limiting portion, and a second limiting portion, and a first crank arm is provided at one end of the first rotating shaft.

[0008] Preferably, the large gear is pivotally arranged on the first rotating shaft, the large gear is provided with a cam, and the cam is provided with an energy storage retaining roller.

[0009] Preferably, one end of the energy storage spring is linked to the first crank arm.

[0010] Preferably, the driving device includes an energy storage motor, a pinion, a handle, and a third rotating shaft. The third rotating shaft is pivoted on the frame, the pinion is fixed to the third rotating shaft and meshes with the large gear, the handle is connected and fixed to the third rotating shaft, and the energy storage motor is connected to the third rotating shaft for providing rotational power to the third rotating shaft.

[0011] Preferably, the tripping mechanism comprises a tripping roller, a tripping arm, and a second crank arm, the tripping arm and the second crank arm pivot around the axis of the tripping roller, the tripping roller is linked to the tripping arm and the second crank arm, the tripping arm is provided with a rotatable tripping latch, the tripping arm is provided with a first torsion spring, and is buckled on the tripping latch.

[0012] Preferably, the closing device includes a closing electromagnet, a closing trip plate, a first transmission arm, and a second torsion spring. The closing trip plate is fixed to the closing half-shaft, one end of the first transmission arm is fixed to the closing half-shaft, the other end of the first transmission arm is pivotally set on the second rotating shaft, the first transmission arm is provided with a closing latch, the second torsion spring is set on the second rotating shaft, one end of the second torsion spring abuts against the first limiting portion, and the other end abuts against the first transmission arm, so that the closing latch is located on the track of the energy storage holding roller, and the closing trip plate is located on the travel track of the closing electromagnet.

[0013] Preferably, the opening device includes an opening electromagnet, an opening trip plate, a second transmission arm, and a third torsion spring. The opening trip plate is located on the travel track of the opening electromagnet, the opening trip plate is fixed to the opening half-shaft, the second transmission arm is provided with a opening holding roller, and the third torsion spring is arranged on the second rotating shaft, one end of the third torsion spring abuts against the second limiting portion, and the other end abuts against the second transmission arm, so that the opening holding roller abuts against the opening latch and forms a second locking holding point with it.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model integrates and installs the driving device, the tripping mechanism, the closing device, the opening device, the energy storage spring and the large gear on the frame through reasonable design and reasonable layout, thereby reducing the overall volume and completing modularization, which is convenient for installation in the vacuum circuit breaker or for later maintenance and disassembly; at the same time, the opening device and the closing device can be made to have the same movable strokes through the opening half-shaft and the closing half-shaft, respectively, so that the parts of the same size can be achieved, so that the parts of the same size can be used during assembly, reducing the parts of different sizes required, making them unified, thereby reducing the assembly cost, and making the product have the advantages of modularization, simplicity and compactness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a modular spring operating mechanism for closing and opening half-shaft release of the utility model;

[0018] Figure 2 It is a rear view of a modular spring operating mechanism for closing and opening half-shaft release of the utility model;

[0019] Figure 3 It is a schematic diagram of the side structure of a modular spring operating mechanism with a half-shaft release for closing and opening the switch, when the main shaft is open and no energy is stored;

[0020] Figure 4 It is a schematic diagram of the side structure of a modular spring operating mechanism with a half-shaft release for closing and opening the switch, with the main shaft opening the switch having stored energy;

[0021] Figure 5 It is a side structural schematic diagram of the release state of a modular spring operating mechanism for closing and opening half-shaft release of the utility model;

[0022] Figure 6 It is a schematic diagram of the side structure of a modular spring operating mechanism with a half-shaft release for closing and opening the switch, when the main shaft is closed and no energy is stored;

[0023] Figure 7 It is a schematic diagram of the side structure of a modular spring operating mechanism with a half-shaft release for closing and opening the switch, with the main shaft closed and energy stored;

[0024] Figure 8 It is a side structural schematic diagram of the main shaft opening of a modular spring operating mechanism with a closing and opening half-shaft release of the utility model;

[0025] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0026] Reference numerals: 1, frame; 2, driving device; 3, tripping mechanism; 4, closing device; 5, opening device; 6, energy storage spring; 7, large gear; 8, opening half shaft; 9, closing half shaft;

[0027] 11. first rotating shaft; 12. second rotating shaft; 13. first limiting portion; 14. second limiting portion;

[0028] 21. Energy storage motor; 22. Pinion gear; 23. Handle; 24. Third rotating shaft;

[0029] 31. Opening brake roller; 32. Opening brake arm; 33. Second turning arm; 34. Opening brake latch; 35. First torsion spring;

[0030] 41. Closing electromagnet; 42. Closing trip plate; 43. First transmission arm; 44. Second torsion spring; 45. Closing latch;

[0031] 51. Opening electromagnet; 52. Opening trip plate; 53. Second transmission arm; 54. Third torsion spring; 55. Opening holding roller;

[0032] 71. First crank arm; 72. Cam; 73. Energy storage holding roller. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference example Figures 1 to 8A modular spring operating mechanism for closing and opening half-shaft type tripping, comprising a frame 1, the frame 1 is provided with a driving device 2, a tripping mechanism 3, a closing device 4, an opening device 5, an energy storage spring 6, and a large gear 7, the frame 1 is provided with a rotatable opening half-shaft 8 and a closing half-shaft 9, and the opening half-shaft 8 is linked to the opening device 5, and the closing half-shaft 9 is linked to the closing device 4; one end of the energy storage spring 6 is linked to the large gear 7, and the other end is fixed to the frame 1 for energy storage; the driving device 2 engages the large gear Gear 7 is used to provide rotational power for large gear 7; rotating large gear 7 makes energy storage spring 6 store energy, so that large gear 7 is buckled on closing device 4 and forms a first locking holding point with it; when pressure is applied to closing device 4, it is used to release the first locking holding point with large gear 7 and release energy of energy storage spring 6; rotating tripping mechanism 3 makes a second locking holding point formed between tripping mechanism 3 and opening device 5; when pressure is applied to opening device 5, it drives tripping mechanism 3 to rotate and release the second locking holding point.

[0036] It is worth mentioning that the frame 1 is further provided with a first rotating shaft 11, a second rotating shaft 12, a first limiting portion 13, and a second limiting portion 14. A first turning arm 71 is provided at one end of the first rotating shaft 11. The first rotating shaft 11 is used in conjunction with the large gear 7, and the second rotating shaft 12 is used in conjunction with the opening trip plate 52 and the closing trip plate 42. The first limiting portion 13 provides a support point for the second torsion spring 44, and the second limiting portion 14 provides a support point for the third torsion spring 54. The first turning arm 71 is used in conjunction with the energy storage spring 6;

[0037] It is worth mentioning that the large gear 7 is pivotally arranged on the first rotating shaft 11, the large gear 7 is provided with a cam 72, and the cam 72 is provided with an energy storage holding roller 73;

[0038] It is worth mentioning that one end of the energy storage spring 6 is linked to the first crank arm 71;

[0039] It is worth mentioning that the driving device 2 includes an energy storage motor 21, a pinion 22, a handle 23, and a third rotating shaft 24. The third rotating shaft 24 is pivoted on the frame 1, the pinion 22 is fixed to the third rotating shaft 24, and meshes with the large gear 7. The handle 23 is connected and fixed to the third rotating shaft 24. The energy storage motor 21 is connected to the third rotating shaft 24 to provide rotational power for the third rotating shaft 24. The energy storage motor 21 or the handle 23 provides rotational power for the third rotating shaft 24. The user can select different driving powers according to the needs of the scene.

[0040] It is worth mentioning that the tripping mechanism 3 includes a tripping roller 31, a tripping arm 32, and a second crank arm 33. The tripping arm 32 and the second crank arm 33 pivot around the axis of the tripping roller 31. The tripping roller 31 is linked with the tripping arm 32 and the second crank arm 33. The tripping arm 32 is provided with a rotatable tripping catch 34. The tripping arm 32 is provided with a first torsion spring 35 and is buckled on the tripping catch 34. The tripping roller 31 is mainly connected to the main shaft in the high-voltage vacuum circuit breaker. When the tripping roller 31 rotates, the tripping arm 32 and the second crank arm 33 are driven to rotate synchronously. As the tripping arm 32 rotates, the distance between the support point of the first torsion spring 35 of the tripping arm 32 and the tripping catch 34 is shortened, so that the first torsion spring 35 releases elastic force to the tripping catch 34, pushing the tripping catch 34 to move in the direction of the first rotating shaft 11.

[0041] It is worth mentioning that the closing device 4 includes a closing electromagnet 41, a closing trip plate 42, a first transmission arm 43, and a second torsion spring 44. The closing trip plate 42 is fixed to the closing half shaft 9, one end of the first transmission arm 43 is fixed to the closing half shaft 9, and the other end of the first transmission arm 43 is pivotally arranged on the second rotating shaft 12. The first transmission arm 43 is provided with a closing latch 45. The second torsion spring 44 is arranged on the second rotating shaft 12, one end of the second torsion spring 44 abuts against the first limiting portion 13, and the other end abuts against the first transmission arm 43, so that the closing latch 45 is located at the energy storage holding roller 7. 3, the closing trip plate 42 is located on the travel track of the closing electromagnet 41, and the closing trip plate 42 receives the rotation instruction, thereby driving the first transmission arm 43 to rotate, and the elastic force released by the second torsion spring 44 is given to the first transmission arm 43, so that the closing latch 45 can be tightly buckled on the energy storage holding roller 73 to form a first locking holding point, and when the closing trip plate 42 loses the resistance from the closing electromagnet 41, the first transmission arm 43, the closing trip plate 42, the closing half shaft 9, and the closing latch 45 are reset through the second torsion spring 44;

[0042] It is worth mentioning that the opening device 5 includes an opening electromagnet 51, an opening trip plate 52, a second transmission arm 53, and a third torsion spring 54. The opening trip plate 52 is located on the travel track of the opening electromagnet 51, the opening trip plate 52 is fixed to the opening half shaft 8, the second transmission arm 53 is provided with an opening holding roller 55, and the third torsion spring 54 is arranged on the second rotating shaft 12. One end of the third torsion spring 54 abuts against the second limiting portion 14, and the other end abuts against the second transmission arm 53, so that the opening holding roller 55 abuts against the opening latch 34 and forms a second locking holding point therewith, and receives a rotation instruction through the opening trip plate 52, thereby driving the second transmission arm 53 to rotate, and the third torsion spring 54 releases The elastic force is given to the second transmission arm 53, so that the opening holding roller 55 can be tightly buckled on the opening latch 34 to form a second locking holding point, and when the opening trip plate 52 loses the resistance from the opening electromagnet 51, the second transmission arm 53, the opening trip plate 52, the opening half-shaft 8, and the opening latch 34 are reset through the third torsion spring 54. Through the parallel front-to-back arrangement of the opening half-shaft 8 and the closing half-shaft 9, the movable strokes between the closing trip plate 42 and the closing electromagnet 41, and between the opening trip plate 52 and the opening electromagnet 51 remain the same, thereby achieving the use of parts of the same size during assembly, reducing the required parts of different sizes, making them unified, and thus reducing assembly costs.

[0043] The use principle of the utility model is now described as follows:

[0044] Example 1

[0045] Reference example Figure 3 As shown, when the spring operating mechanism is in a non-energy-storing state, when the energy-storing motor 21 is powered or the operating handle 23 is storing energy, the third rotating shaft 24 and the small gear 22 are rotated, thereby driving the large gear 7 and the first crank arm 71 to rotate, and the cam 72 and the energy-storing holding roller 73 also rotate synchronously with the large gear 7. As the first crank arm 71 rotates, the length of the energy-storing spring 6 is lengthened until the energy-storing holding roller 73 abuts against the closing latch 45. The elastic force released by the second torsion spring 44 causes the closing latch 45 to be tightly pressed against the energy-storing holding roller 73, thereby forming a first locking holding point. At this time, the energy-storing spring 6 has completed energy storage. Figure 4 As shown;

[0046] Example 2

[0047] When the closing electromagnet 41 is energized and receives an action instruction or is manually pressed, the closing electromagnet 41 pushes the closing trip plate 42 to move, and the closing trip plate 42 moves to drive the closing half shaft 9 to rotate counterclockwise, thereby driving the first transmission arm 43 to rotate counterclockwise, driving the closing latch 45 to move upward, so that the closing latch 45 and the first locking holding point of the energy storage holding roller 73 are disassembled. Figure 5 As shown;

[0048] The energy storage holding roller 73 that has lost its support point is subjected to the elastic force released by the energy storage spring 6, causing the first rotating shaft 11 and the cam 72 to rotate counterclockwise, and hit the opening brake roller 31 to rotate it, and drive the opening brake arm 32 and the second crank arm 33 to rotate clockwise. As the opening brake arm 32 moves and shortens the distance between the support point of the first torsion spring 35 and the opening brake catch 34, the first torsion spring 35 releases its elastic force to the opening brake catch 34, pushing the opening brake catch 34 to move in the direction of the first rotating shaft 11 and abutting against the opening brake holding roller, thereby forming a second locking holding point. As the main shaft rotates, the high-voltage vacuum circuit breaker is in a closed state. Referring to Example Figure 6 As shown;

[0049] If at this time, the power supply of the energy storage motor 21 is connected and not disconnected, the energy storage motor 21 runs, so that the energy storage holding roller 73 and the closing latch 45 form a first locking holding point, refer to Example Figure 7 As shown;

[0050] Example 3

[0051] When the opening electromagnet 51 is energized and receives an action instruction or is manually pressed, the opening electromagnet 51 pushes the opening trip plate 52 to move, and drives the opening half shaft 8 to rotate counterclockwise, and the opening half shaft 8 drives the second transmission arm 53 to rotate, and drives the opening holding roller to tilt upward, so that the opening latch 34 and the second locking holding point of the opening holding roller are disassembled. Figure 8 After disassembly, the high-voltage vacuum circuit breaker switches from the closed state to the open state 5, causing the open state roller 31 to rotate, and the spring operating mechanism returns to the reference example. Figure 4 Status shown.

[0052] The above design scheme can make the product realize the advantages of modularity, simplicity and compactness.

[0053] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A modular spring operating mechanism for closing and opening half-shaft tripping, comprising a frame (1), wherein the frame (1) is provided with a driving device (2), a tripping mechanism (3), a closing device (4), an opening device (5), an energy storage spring (6), and a large gear (7), and characterized in that: The frame (1) is provided with a rotatable opening half-shaft (8) and a closing half-shaft (9), which are arranged in parallel front and back, the opening half-shaft (8) is linked to the opening device (5), and the closing half-shaft (9) is linked to the closing device (4); One end of the energy storage spring (6) is linked to the large gear (7), and the other end is fixed to the frame (1) for storing energy; The driving device (2) is engaged with the large gear (7) to provide rotational power for the large gear (7); The large gear (7) is rotated to store energy in the energy storage spring (6), so that the large gear (7) is buckled on the closing device (4) and forms a first locking holding point therewith; When pressure is applied to the closing device (4), the first locking holding point with the large gear (7) is released, so that the energy storage spring (6) releases energy; Rotating the tripping mechanism (3) to form a second locking holding point between the tripping mechanism (3) and the opening device (5); When pressure is applied to the opening device (5), the tripping mechanism (3) is driven to rotate and release the second locking holding point.

2. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 1 is characterized in that: The frame (1) is further provided with a first rotating shaft (11), a second rotating shaft (12), a first limiting portion (13), and a second limiting portion (14); one end of the first rotating shaft (11) is provided with a first crank arm (71).

3. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 2 is characterized in that: The large gear (7) is pivotally arranged on the first rotating shaft (11), the large gear (7) is provided with a cam (72), and the cam (72) is provided with an energy storage and holding roller (73).

4. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 3 is characterized in that: One end of the energy storage spring (6) is linked to the first crank arm (71).

5. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 1, characterized in that: The driving device (2) comprises an energy storage motor (21), a pinion (22), a handle (23), and a third rotating shaft (24); the third rotating shaft (24) is pivoted on the frame (1); the pinion (22) is fixed to the third rotating shaft (24) and meshes with the large gear (7); the handle (23) is connected and fixed to the third rotating shaft (24); the energy storage motor (21) is connected to the third rotating shaft (24) and is used to provide rotational power for the third rotating shaft (24).

6. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 3, characterized in that: The tripping mechanism (3) comprises a gate-opening roller (31), a gate-opening arm (32), and a second crank arm (33); the gate-opening arm (32) and the second crank arm (33) pivot around the axis of the gate-opening roller (31); the gate-opening roller (31) is linked with the gate-opening arm (32) and the second crank arm (33); the gate-opening arm (32) is provided with a rotatable gate-opening latch (34); the gate-opening arm (32) is provided with a first torsion spring (35) and is buckled on the gate-opening latch (34).

7. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 6, characterized in that: The closing device (4) comprises a closing electromagnet (41), a closing release plate (42), a first transmission arm (43), and a second torsion spring (44); the closing release plate (42) is fixed to a closing half shaft (9); one end of the first transmission arm (43) is fixed to the closing half shaft (9); the other end of the first transmission arm (43) is pivotally arranged on a second rotating shaft (12); the first transmission arm (43) is provided with a closing latch (45); the second torsion spring (44) is arranged on the second rotating shaft (12); one end of the second torsion spring (44) abuts against the first limiting portion (13) and the other end abuts against the first transmission arm (43), so that the closing latch (45) is located on the track of the energy storage holding roller (73); and the closing release plate (42) is located on the travel track of the closing electromagnet (41).

8. The modular spring operating mechanism for closing and opening half-shaft tripping according to claim 7, characterized in that: The opening device (5) comprises an opening electromagnet (51), an opening release plate (52), a second transmission arm (53), and a third torsion spring (54); the opening release plate (52) is located on the travel track of the opening electromagnet (51); the opening release plate (52) is fixed to the opening half shaft (8); the second transmission arm (53) is provided with an opening retaining roller (55); the third torsion spring (54) is arranged on the second rotating shaft (12); one end of the third torsion spring (54) abuts against the second limiting portion (14), and the other end abuts against the second transmission arm (53), so that the opening retaining roller (55) abuts against the opening latch (34) and forms a second locking retaining point therewith.

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