An operating mechanism and operating method of a three-position isolating switch

Abstract

The invention discloses an operating mechanism of a three-station isolating switch, including a bracket mechanism, the bracket mechanism including a limit plate located between a lower partition and a bottom plate; a spring-operated component, the spring-operated component including an output shaft located between the lower partition and the bottom plate, the output shaft extending out of a card plate respectively, an arc groove is processed on the card plate, a first semicircular shaft is slidably arranged in the arc groove, a limit bayonet is provided at the edge of the card plate, the limit bayonet is matched with the limit plate, a central shaft is provided through the center of the output shaft, a driving plate is fixed respectively on the upper and lower sides of the central shaft, a second semicircular shaft is installed on the driving plate, an operating shaft is also connected to the top of the central shaft, and a card groove is processed on the outer circumference of the operating shaft; a direction selection component, the direction selection component including a limit block, the limit block is matched with the card groove of the operating shaft, and the limit block is connected to the direction selection plate through an interlocking shaft; an electric component, the electric component including a motor and a reduction mechanism, and the output shaft of the reduction mechanism is coaxially connected to the operating shaft. The device has an ingenious structure and integrates electric and manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of improved design of an operating mechanism of a three-position isolating switch, in particular to an operating mechanism of a three-position isolating switch and an operating method thereof. Background Art

[0002] In the prior art, with the development of science and technology and power technology, the ordinary manually operated isolating switch mechanism can no longer meet people's needs. A new three-position operating mechanism is needed that can realize manual operation and electric operation at the same time, achieve high safety performance, and be automated and intelligent. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an operating mechanism and an operating method for a three-position isolating switch, which has an ingenious structural design and integrates electric and manual operations.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: an operating mechanism of a three-position disconnector, comprising a bracket mechanism, wherein the bracket mechanism comprises a lower partition plate and a bottom plate sequentially arranged on a support shaft, four limit plates are installed between the lower partition plate and the bottom plate, a pin shaft is passed through the limit plate, and a torsion spring is arranged outside the pin shaft;

[0005] A spring-operated component, the spring-operated component comprises an output shaft located between a lower baffle and a bottom plate, the output shaft extends out of clamping plates above and below respectively, a symmetrical arc groove is machined on the clamping plate, a first semicircular shaft is slidably arranged in the arc groove, a limit clamping slot is arranged at the edge of the clamping plate, the limit clamping slot cooperates with the limit plate, a central shaft is passed through the center of the output shaft, a driving plate is fixed above and below the central shaft respectively, a pair of second semicircular shafts are mounted on the driving plate, the second semicircular shaft and the first semicircular shaft are connected via an elastic connection, an operating shaft is also connected to the top of the central shaft, a clamping slot is machined on the outer circumference of the operating shaft, and the operating shaft is located on the lower baffle; a direction selection component, the direction selection component comprises a limit block rotatably arranged on the lower baffle, the limit block cooperates with the clamping slot of the operating shaft, and the limit block is connected to the direction selection piece via an interlocking shaft;

[0006] The electric component comprises a motor and a reduction mechanism arranged on a bottom plate, wherein an output shaft of the reduction mechanism is coaxially connected with an operating shaft.

[0007] The upper and lower clamping plates of the output shaft are connected through a column, the second semicircular shaft is arranged opposite to the column, and the arc grooves are symmetrically arranged on both sides of the straight line formed by the column and the central axis.

[0008] The second semicircular shaft is connected to the first semicircular shaft via a rod, and a compression spring is sleeved outside the rod.

[0009] The arc between the two clamping grooves on the outer circumference of the operating shaft is 110 degrees, the two extension arms of the limit block are perpendicular to each other, and the end sections of the two extension arms are perpendicular to each other.

[0010] The arc groove has an arc angle of 50 degrees, the arc angle of the two limit snap-in openings on the outer circumference of the clamping plate is 130 degrees, the number of the second semicircular shaft and the first semicircular shaft are both two, and the number of the rods and compression springs connected between the second semicircular shaft and the first semicircular shaft are both two.

[0011] An upper partition and an operating panel are also installed on the support shaft. Both the upper partition and the operating panel are provided with through holes facing the operating shaft. The direction selection piece is located outside the operating panel. Two limit pieces are fixed on the operating panel and are located on both sides of the direction selection piece. The angle between the two limit pieces is 30 degrees.

[0012] The output shaft is connected to the central shaft via a keyway, the central shaft is connected to the operating shaft via a prismatic surface, the operating shaft is externally connected to a sprocket, the sprocket is connected to a motor via a chain, and the motor is a bidirectional clutch reduction motor.

[0013] A method for operating an operating mechanism of a three-position disconnector, wherein the direction selector can rotate left or right, and the direction selector drives a limit block to rotate left or right through an interlocking shaft, and when the limit block rotates 15 degrees to the left, the operating shaft can only rotate 45 degrees to the left; when the limit block rotates 15 degrees to the right, the operating shaft can only rotate 45 degrees to the right.

[0014] When the operating shaft rotates clockwise or counterclockwise, the operating shaft drives the driving plate, and the driving plate is linked to the second semicircular shaft to rotate, compressing the compression spring to do work. When the operating shaft rotates 45 degrees, the driving plate pushes the limit plate to move, the limit plate rotates, and the limit bayonet is separated. The compression spring releases elastic potential energy and pushes the first semicircular shaft. The first semicircular shaft drives the output shaft to rotate and do work. After the output shaft rotates 45 degrees, the limit plate is clamped into the limit bayonet under the action of the torsion spring elastic force to limit the rotation of the output shaft.

[0015] When the operating shaft rotates, the motor will not rotate. When the motor rotates, the operating shaft will be driven to rotate through the reduction mechanism, so that manual operation and electric operation do not interfere with each other.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present device is suitable for a three-position disconnector with upper closed position, open position, lower closed position, and three-position one-axis operation, and adopts an elastic operating mechanism, which is spring-operated, stores energy through a spring, and then releases the elastic potential energy to realize the separation and closing of the disconnector. Specifically, electric operation and manual operation are integrated, and it can be operated manually or electrically, and the two will not interfere with each other, meeting the requirements of intelligence, safety and stability of electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A perspective view of the present invention;

[0018] Figure 2 A side view of the present invention;

[0019] Figure 3 It is an explosion schematic diagram of the present invention;

[0020] Figure 4 It is a partial view of the present invention;

[0021] Figure 5 for Figure 4 Schematic diagram of the decomposition.

[0022] The markings in the attached drawings are: 11. operation panel; 12. upper partition; 13. support shaft; 14. lower partition; 15. bottom plate; 16. limit plate; 17. torsion spring; 18. pin shaft; 20. first semicircular shaft; 21. output shaft; 22. center shaft; 23. compression spring; 24. drive plate; 25. second semicircular shaft; 26. operation shaft; 27. sprocket; 28. limit bayonet; 29. ​​card plate; 31. selection plate; 32. interlocking shaft; 33. limit block; 41. chain; 42. motor. DETAILED DESCRIPTION

[0023] The following is a detailed description with reference to the accompanying drawings in combination with the embodiments, so as to provide a more in-depth explanation of the technical features and advantages of the present invention.

[0024] like Figure 1-5As shown, an operating mechanism of a three-station disconnector of the present invention includes a bracket mechanism, wherein the bracket mechanism includes a lower partition 14 and a bottom plate 15 sequentially arranged on a support shaft 13, four limit plates 16 are installed between the lower partition and the bottom plate, a pin 18 is passed through the limit plate, a torsion spring 17 is arranged outside the pin, and the limit plate can rotate along the pin at a certain angle under the action of the torsion spring; a spring-operated component, wherein the spring-operated component includes an output shaft 21 located between the lower partition and the bottom plate, a clamping plate 29 is extended from the upper and lower ends of the output shaft, a symmetrical arc groove is machined on the clamping plate, a first semicircular shaft 20 is slidably arranged in the arc groove, a limit bayonet 28 is provided on the edge of the clamping plate, and the limit bayonet and the limit The plate cooperates with each other, a central shaft 22 is provided through the center of the output shaft, a driving plate 24 is fixed on the upper and lower parts of the central shaft, a pair of second semicircular shafts 25 are installed on the driving plate, the second semicircular shaft is connected to the first semicircular shaft by elastic connection, the top of the central shaft is also connected to the operating shaft 26, a card slot is processed on the outer circumference of the operating shaft, and the operating shaft is located on the lower partition; the direction selection component, the direction selection component includes a limit block 33 rotatably arranged on the lower partition, the limit block cooperates with the card slot of the operating shaft, and the limit block is connected to the direction selection plate 31 through the interlocking shaft 32; the electric component, the electric component includes a motor 42 and a reduction mechanism arranged on the bottom plate, and the output shaft of the reduction mechanism is coaxially connected to the operating shaft. The elastic operation component is installed in the center of the mechanism bracket, and can be rotated 45 degrees left and right in the center of the mechanism bracket. The specific angle parameter design is shown in the parameter setting below.

[0025] Furthermore, the upper and lower clamping plates of the output shaft are connected by a column, the second semicircular shaft is arranged opposite to the column, the arc groove is symmetrically arranged on both sides of the straight line formed by the column and the central axis, the arc of the arc groove is 50 degrees, the arc of the two limit clamping holes on the outer circumference of the clamping plate is 130 degrees, the arc between the two clamping grooves on the outer circumference of the operating shaft is 110 degrees, the second semicircular shaft and the first semicircular shaft are connected by a rod, specifically, nuts are threadedly connected at both ends of the rod, the first semicircular shaft and the second semicircular shaft are sleeved on the outside of the rod between the two nuts, and a compression spring 23 is sleeved on the outside of the rod, that is, the first semicircular shaft and the second semicircular shaft can slide relatively along the rod, and the compression spring is located between the first semicircular shaft and the second semicircular shaft in a compressed state or a reset state, the number of the second semicircular shaft and the first semicircular shaft is two, the number of the rod and the compression spring connected between the second semicircular shaft and the first semicircular shaft is two, the two extension arms of the limit block are perpendicular to each other, and the end cross sections of the two extension arms are perpendicular to each other.

[0026] Furthermore, an upper partition 12 and an operating panel 11 are installed on the support shaft. Both the upper partition and the operating panel are provided with through holes facing the operating shaft, which are convenient for external manual operation to rotate the operating shaft. The direction selection piece is located outside the operating panel. Two limit pieces are fixed on the operating panel on both sides of the direction selection piece. The angle between the two limit pieces is 30 degrees. The output shaft is connected to the central shaft through a keyway, and the central shaft is connected to the operating shaft through a prismatic surface. The operating shaft is externally connected to a sprocket 27, and the sprocket is connected to the motor through a chain 41. The motor is a bidirectional clutch reduction motor.

[0027] A method for operating an operating mechanism of a three-position disconnector, wherein the direction selection plate can rotate left or right, and the direction selection plate drives the limit block to rotate left or right through an interlocking shaft. When the limit block rotates 15 degrees to the left, the operating shaft can only rotate 45 degrees to the left; when the limit block rotates 15 degrees to the right, the operating shaft can only rotate 45 degrees to the right, thereby realizing the rotation direction selection of the operating mechanism of the spring-operated component.

[0028] When the operating shaft rotates clockwise or counterclockwise, the operating shaft drives the driving plate, and the driving plate is linked to the second semicircular shaft to rotate, compressing the compression spring to do work. When the operating shaft rotates 45 degrees, the driving plate pushes the limit plate to move, the limit plate rotates, separates the limit bayonet, and the compression spring releases elastic potential energy to push the first semicircular shaft. The first semicircular shaft drives the output shaft to rotate and do work. After the output shaft rotates 45 degrees, the limit plate is clamped into the limit bayonet under the action of the torsion spring elastic force to limit the rotation of the output shaft, thereby realizing the rotation of the operating shaft 45 degrees. The output shaft rotates 45 degrees under the action of the elastic operating component.

[0029] Since the bidirectional clutch reduction motor has a bidirectional clutch function, when the operating shaft rotates, the motor will not rotate. When the motor rotates, the operating shaft will be driven to rotate through the reduction mechanism, thereby achieving manual operation and electric operation without interfering with each other.

[0030] The device and its operation method of the present invention are suitable for a three-position disconnector with upper closed position, open position, lower closed position, and three-position one-axis operation. The elastic operating mechanism is adopted, and the operating mechanism is spring-operated. The energy is stored by the compression spring, and then the elastic potential energy is released to realize the separation and closing of the disconnector. Specifically, the electric operation and the manual operation are integrated, and both manual operation and electric operation can be performed. The two will not interfere with each other, meeting the requirements of intelligence, safety and stability of electrical equipment. The selection of the motor and its control system are existing technologies or materials. The relevant technical personnel can directly purchase or customize them from the market according to the required product models and specifications.

[0031] The electrical components mentioned in the text are all connected to an external main controller and 220V mains or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0032] It should be noted that when an element is said to be "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is said to be "mounted on" another element, it may be directly mounted on the other element or there may be an intermediate element. When an element is said to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0033] The present invention is clearly and completely described through the technical solutions in the above embodiments. It is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. An operating mechanism for a three-position isolating switch, characterized in that: It includes a bracket mechanism, which includes a lower baffle and a bottom plate arranged in sequence on the support shaft, four limit plates are installed between the lower baffle and the bottom plate, a pin is passed through the limit plate, and a torsion spring is arranged outside the pin; A spring-operated component, the spring-operated component comprises an output shaft located between a lower baffle and a bottom plate, the output shaft extends out of clamping plates above and below respectively, a symmetrical arc groove is machined on the clamping plate, a first semicircular shaft is slidably arranged in the arc groove, a limit clamping slot is arranged at the edge of the clamping plate, the limit clamping slot cooperates with the limit plate, a central shaft is passed through the center of the output shaft, a driving plate is fixed above and below the central shaft respectively, a pair of second semicircular shafts are mounted on the driving plate, the second semicircular shaft and the first semicircular shaft are connected via an elastic connection, an operating shaft is also connected to the top of the central shaft, a clamping slot is machined on the outer circumference of the operating shaft, and the operating shaft is located on the lower baffle; a direction selection component, the direction selection component comprises a limit block rotatably arranged on the lower baffle, the limit block cooperates with the clamping slot of the operating shaft, and the limit block is connected to the direction selection piece via an interlocking shaft; An electric component, wherein the electric component comprises a motor and a reduction mechanism arranged on a bottom plate, wherein an output shaft of the reduction mechanism is coaxially connected with an operating shaft; The arc between the two slots on the outer circumference of the operating shaft is 110 degrees, the two extension arms of the limit block are perpendicular to each other, and the end sections of the two extension arms are perpendicular to each other; The arc angle of the arc groove is 50 degrees, the arc angle of the two limit bayonet openings on the outer circumference of the card plate is 130 degrees, the number of the second semicircular shaft and the first semicircular shaft are both two, and the number of the rod and the compression spring connected between the second semicircular shaft and the first semicircular shaft are both two; An upper partition and an operating panel are also installed on the support shaft. Both the upper partition and the operating panel are provided with through holes facing the operating shaft. The direction selection piece is located outside the operating panel. Two limit pieces are fixed on the operating panel and are located on both sides of the direction selection piece. The angle between the two limit pieces is 30 degrees.

2. The operating mechanism of the three-position disconnector according to claim 1 is characterized in that: The upper and lower clamping plates of the output shaft are connected through a column, the second semicircular shaft is arranged opposite to the column, and the arc grooves are symmetrically arranged on both sides of the straight line formed by the column and the central axis.

3. The operating mechanism of the three-position disconnector according to claim 2 is characterized in that: The second semicircular shaft is connected to the first semicircular shaft via a rod, and a compression spring is sleeved outside the rod.

4. The operating mechanism of the three-position disconnector according to claim 3 is characterized in that: The output shaft is connected to the central shaft via a keyway, the central shaft is connected to the operating shaft via a prismatic surface, the operating shaft is externally connected to a sprocket, the sprocket is connected to a motor via a chain, and the motor is a bidirectional clutch reduction motor.

5. An operating method of the operating mechanism of the three-position disconnector according to any one of claims 1 to 4, characterized in that: The direction selection piece can rotate left or right, and the direction selection piece drives the limit block to rotate left or right through the interlocking shaft. When the limit block rotates 15 degrees to the left, the operating shaft can only rotate 45 degrees to the left; when the limit block rotates 15 degrees to the right, the operating shaft can only rotate 45 degrees to the right.

6. The method for operating the operating mechanism of the three-position disconnector according to claim 5, characterized in that: When the operating shaft rotates clockwise or counterclockwise, the operating shaft drives the driving plate, and the driving plate is linked to the second semicircular shaft to rotate, compressing the compression spring to do work. When the operating shaft rotates 45 degrees, the driving plate pushes the limit plate to move, the limit plate rotates, and the limit bayonet is separated. The compression spring releases elastic potential energy and pushes the first semicircular shaft. The first semicircular shaft drives the output shaft to rotate and do work. After the output shaft rotates 45 degrees, the limit plate is clamped into the limit bayonet under the action of the torsion spring elastic force to limit the rotation of the output shaft.

7. The method for operating the operating mechanism of the three-position disconnector according to claim 6, characterized in that: When the operating shaft rotates, the motor will not rotate. When the motor rotates, the operating shaft will be driven to rotate through the reduction mechanism, so that manual operation and electric operation do not interfere with each other.

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