Manual operation device of tap switch electric operation mechanism

Abstract

The utility model relates to the field of transformer tap switch accessories, and discloses a manual operation device of a tap switch electric operation mechanism, which comprises an operation shaft and a shell, the shell is fixed inside a case of the electric operating mechanism of the tap switch, the operating shaft is rotatably connected with the shell, one end of the operating shaft is provided with an interface, and the other end of the operating shaft is in transmission connection with the output shaft. If a motor fault or a control system fault occurs in the use process of the electric operating mechanism of the tap switch, the electric mechanism cannot act according to an instruction, and the manual operating device of the electric operating mechanism of the tap switch can be used for manually rotating the operating shaft and driving the output shaft by using a tool, so that the tap switch is driven to act; the problems that in the prior art, when a motor fault or a control system fault occurs, an electric mechanism cannot change the transformation ratio of a transformer according to instructions, the output voltage of the transformer or the system voltage possibly deviates from a target value, and the load requirement or the power grid dispatching requirement cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of transformer tap switch accessories, especially relates to a manual operating device of tap switch electric operating mechanism. BACKGROUND

[0002] The tap switch is usually used on the transformer to adjust the voltage ratio, and the tap switch electric mechanism is the driving and control system of the on-load tap changer of the transformer, which realizes accurate, reliable and safe adjustment of the transformer.

[0003] However, when the electric operating mechanism itself fails (such as motor burnout, control circuit failure, power interruption, transmission mechanism jamming, etc.), the electric mechanism cannot change the transformer ratio according to the instruction, the transformer output voltage or system voltage may deviate from the target value, and the load demand or power grid scheduling requirement cannot be met. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a manual operating device of tap switch electric operating mechanism, which can solve the problem that the electric mechanism cannot change the transformer ratio according to the instruction when the motor or control system fails, the transformer output voltage or system voltage may deviate from the target value, and the load demand or power grid scheduling requirement cannot be met.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A manual operating device of tap switch electric operating mechanism, comprising: an operating shaft, a housing;

[0007] The housing is fixed inside the case of the tap switch electric operating mechanism, the operating shaft is rotatably connected with the housing, one end of the operating shaft is provided with an interface, and the other end is drivingly connected with an output shaft.

[0008] In a preferred embodiment, it further comprises a cover plate, a tension spring and a hand tool.

[0009] The cover plate is movably installed outside the housing, one end of the tension spring is fixedly connected with the cover plate, the other end is fixedly connected with the housing, the cover plate is pulled to one side of the tension spring, the cover plate covers the interface, and the cover plate is provided with an operating hole.

[0010] The hand tool comprises a hand lever, a joint and an anti-dropping groove, the joint is fixed at one end of the hand lever, and the anti-dropping groove is arranged at the end of the joint close to the hand lever.

[0011] In a preferred embodiment, the cover plate surface is provided with a moving rod, the cover plate is provided with a slot, the moving rod penetrates the slot and extends out of the cabinet.

[0012] In a preferred embodiment, the hand lever further comprises a handle and an intermediate rod, the handle is rotatably fixed to one end of the intermediate rod, and the other end of the intermediate rod is fixedly connected to the joint.

[0013] In a preferred embodiment, the cover plate is provided with an elongated slot, and the guide member is fixedly connected to the housing by penetrating the elongated slot.

[0014] In a preferred embodiment, the guide member is a bolt, the position of the shank of the bolt close to the head of the bolt is a rod, the position of the shank of the bolt away from the head of the bolt is a threaded rod, and the bolt is threadedly connected to the housing by penetrating the elongated slot.

[0015] In a preferred embodiment, the operation shaft is provided with a first gear, and the lower end of the output shaft is provided with a second gear, and the first gear and the second gear are drivingly engaged by gears.

[0016] In a preferred embodiment, the first gear and the second gear are bevel gears.

[0017] In a preferred embodiment, the interface is a square slot, and the cross section of the joint is square.

[0018] In a preferred embodiment, the operation shaft is mounted in the interior of the housing by a bearing.

[0019] The manual operation device of the tap changer electric operating mechanism comprises an operation shaft and a housing, the housing is fixed in the interior of the cabinet of the tap changer electric operating mechanism, the operation shaft is rotatably connected to the housing, one end of the operation shaft is provided with an interface, and the other end of the operation shaft is drivingly connected to an output shaft. The interface of the operation shaft is rotated by a tool, the output shaft is driven to rotate, and thus the tap changer electric operating mechanism is manually operated.

[0020] When the tap changer electric operating mechanism fails during use, the electric mechanism cannot be actuated according to the instruction, the manual operation device of the tap changer electric operating mechanism disclosed in the application is used, the operation shaft is manually rotated by a tool, the output shaft is driven, and thus the tap changer is actuated, and the situation that the transformer is unable to be adjusted due to the failure of the electric mechanism and the transformer is long-term stayed in a non-ideal gear (which may cause unqualified voltage or overload) is avoided. The problem that the electric mechanism of the tap changer electric operating mechanism in the prior art cannot change the transformer ratio according to the instruction when the tap changer electric operating mechanism fails during use, the transformer output voltage or the system voltage may deviate from the target value, and the load demand or the power grid scheduling requirement cannot be met is solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical solutions of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative work based on these drawings.

[0022] Figure 1 Structure diagram of the manual operation device of the electric operating mechanism of the tap switch according to an embodiment of the present application;

[0023] Figure 2 Front view of the manual operation device of the electric operating mechanism of the tap switch according to an embodiment of the present application;

[0024] Figure 3 Front view of another working state of the manual operation device of the electric operating mechanism of the tap switch according to an embodiment of the present application;

[0025] Figure 4 Structure diagram of the manual tool according to an embodiment of the present application; Figure 3 B-B sectional view shown in the structure diagram of the manual tool according to an embodiment of the present application;

[0026] Figure 5 Structure diagram of the manual tool according to an embodiment of the present application;

[0027] Figure 6 Schematic diagram of the manual operation device of the electric operating mechanism of the tap switch according to an embodiment of the present application installed in the electric operating mechanism of the tap switch;

[0028] Figure 7 Structure diagram of the manual operation device of the electric operating mechanism of the tap switch according to an embodiment of the present application.

[0029]

Main component symbol explanation

[0030] 1, operating shaft;

[0031] 11, interface; 12, first gear;

[0032] 2, housing;

[0033] 3, machine case;

[0034] 31, notch;

[0035] 4, output shaft;

[0036] 5, cover plate;

[0037] 51, moving rod; 52, operation hole; 53, long strip-shaped slot; 54, guide piece;

[0038] 6, tension spring;

[0039] 7. A hand tool;

[0040] 71. Handle; 72. Joint; 73. Anti-escape groove

[0041] 711. Handle; 712. Intermediate lever;

[0042] 8. Bearing. DETAILED DESCRIPTION

[0043] The manual operating device of the electric operating mechanism of the tap changer will be further described in detail below in combination with the drawings and the embodiments of the present application.

[0044] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0045] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or combinations thereof.

[0046] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0047] For purposes of the description hereinafter, spatial relative terms are used to describe the positional relations between one device or feature to another device or feature as shown in the drawings. The spatial relative terms are intended to encompass different orientations of the devices in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative descriptors used herein interpreted accordingly.

[0048] Referring to Figures 1-7 The utility model provides a technical scheme:

[0049] A manual operation device of tap switch electric operating mechanism, include: operating shaft 1, casing 2,

[0050] Casing 2 is fixed in the inside of tap switch electric operating mechanism case 3, operating shaft 1 is rotationally connected with casing 2, operating shaft 1 one end is provided with interface 11, the other end is transmission connection with output shaft 4. When the motor of tap switch electric operating mechanism can not work, can use the tool that is adapted with interface 11, through the tool rotation operating shaft 1, operating shaft 1 output shaft 4 transmission connection, operating shaft 1 drives output shaft 4, can make tap switch electric operating mechanism through manual operation.

[0051] For the convenience of manual operation, the manual operation device of tap switch electric operating mechanism further includes: cover plate 5, tension spring 6, hand tool 7,

[0052] Cover plate 5 is movably installed on the outside of casing 2, one end of tension spring 6 is fixedly connected with cover plate 5, the other end is fixedly connected with casing 2, cover plate 5 is pulled to one side of tension spring 6, makes cover plate 5 cover interface 11, cover plate 5 is provided with operating hole 52,

[0053] Hand tool 7 includes hand lever 71, joint 72 and anti-off groove 73, joint 72 is fixed at one end of hand lever 71, and anti-off groove 73 is arranged on the end of joint 72 close to hand lever 71. As shown in Figure 6 When not using, hand tool 7 is clamped in the inside of case cover 12, and can be taken down when using.

[0054] As shown in Figure 1 And Figure 2As shown, under the action of the tension spring 6, the operation hole 52 is beside the interface 11, and the cover plate 52 is pushed to the end away from the tension spring 6, so that the interface 11 is completely exposed, as shown in Figure 3 As shown, in this state, the connector 72 of the hand tool 7 is inserted into the interface 11, and then the cover plate 52 is loosened, and under the action of the tension spring 6, the cover plate 52 moves to the end of the tension spring, and the edge of the operation hole 52 is embedded in the anti-falling groove 73, so that the hand tool 7 will not fall off, and the hand tool 7 is rotated to drive the output shaft 4 to rotate, and the hand tool 7 will not fall off during the whole rotation process, and when the output shaft 4 reaches the set position, the rotation of the hand tool 7 is stopped, and at this time the edge of the operation hole 52 is still embedded in the anti-falling groove 73, and in order to take out the hand tool 7, the cover plate 52 is pushed to the end away from the tension spring 6, and at this time the edge of the operation hole 52 is away from the anti-falling groove 73, so that the hand tool 7 can be taken out from the interface 11.

[0055] The surface of the cover plate 5 is provided with a moving rod 51, the cabinet 3 is provided with a slot 31, and the moving rod 51 penetrates through the slot 31 and extends out of the cabinet 3. The slot 31 is long strip-shaped, so that the moving rod 51 can move in the slot 31, and the hand tool can be operated without opening the cabinet 3. The interface 11 is exposed at the slot 31 by pushing the moving rod 51, and the tool can be used for operation.

[0056] In order to facilitate operation, the hand lever 71 further comprises a handle 711 and an intermediate rod 712, the handle 711 is rotatably fixed to one end of the intermediate rod 712, and the other end of the intermediate rod 712 is fixedly connected with the connector 72. When the hand tool 7 is used, the handle 711 is held and shaken, which is convenient and can save labor.

[0057] The cover plate 5 is provided with a long strip-shaped slot 53 as a guide slot, and a guide piece 54 penetrates through the long strip-shaped slot 53 and is fixedly connected with the shell 2. Preferably, the guide piece 54 is a bolt, the position of the shank of the bolt close to the bolt head is a smooth rod, and the position of the shank of the bolt away from the bolt head is a threaded rod, and the bolt is threadedly connected with the shell 2 through the long strip-shaped slot 53.

[0058] Preferably, two guide pieces 54 are arranged in each long strip-shaped slot 53, the length of the long strip-shaped slot 53 is greater than the distance between the two guide pieces 54, and the length of the long strip-shaped slot 53 minus the distance between the two bolts is the displacement of the cover plate 43. Preferably, one long strip-shaped slot 53 is arranged on the cover plate 43.

[0059] The operation shaft 1 is provided with a first gear 12, and a second gear 41 arranged at the lower end of the output shaft 4 is driven through gear meshing. Preferably, the first gear 12 and the second gear 41 are bevel gears.

[0060] The interface 11 is a square slot, the cross section of the joint 72 is square, the size of the joint 72 is smaller than the interface 11, so the joint 72 can be put into the interface 11, and the joint 72 can drive the interface 11 to rotate.

[0061] As Figure 4 The operation shaft 1 is installed in the inside of the shell 2 through the bearing 8, so that the rotation of the operation shaft 1 is smooth and without jam. The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application.

Claims

1. A hand operating device for electrically operating a tapping switch mechanism, characterized in that The utility model relates to an electric operating mechanism for tap switch, including: Operating shaft (1), shell (2); The shell (2) is fixed in the inside of tap switch electric operating mechanism machine box (3), operating shaft (1) is rotatably connected with shell (2), and one end of operating shaft (1) is provided with interface (11), and the other end is transmission connection with output shaft (4).

2. A hand operating device for an electric operating mechanism of a tap changer, according to claim 1, characterized in that Further including: Cover plate (5), tension spring (6), hand tool (7); Cover plate (5) is movably installed on the outside of shell (2), one end of tension spring (6) is fixedly connected with cover plate (5), the other end is fixedly connected with shell (2), cover plate (5) is pulled to the one side of tension spring (6), makes cover plate (5) cover interface (11), and cover plate (5) is provided with operating hole (52); Hand tool (7) includes hand lever (71), joint (72) and anti-drop groove (73), one end of joint (72) is fixed in hand lever (71), and anti-drop groove (73) is arranged on the one end of joint (72) close to hand lever (71).

3. A hand operating device for an electric operating mechanism of a tap changer according to claim 2, characterized in that The surface of cover plate (5) is provided with moving rod (51), and the slot (31) is formed in the machine box (3), the moving rod (51) penetrates the slot (31) and extends out of the machine box (3).

4. A hand operating device for an electric operating mechanism of a tap changer according to claim 2, characterized in that Hand lever (71) further includes handle (711) and intermediate rod (712), handle (711) is rotatably fixed on one end of intermediate rod (712), and the other end of intermediate rod (712) is fixedly connected with joint (72).

5. A hand operating device for an electric operating mechanism of a tap changer according to claim 2, characterized in that Cover plate (5) is provided with long strip-shaped slot (53), and guide element (54) penetrates long strip-shaped slot (53) and is fixedly connected with shell (2).

6. A hand operating device for an electric operating mechanism of a tap changer according to claim 5, characterized in that The guide element (54) is a bolt, the screw rod of the bolt is a light pole close to the position of the bolt head, and the position away from the bolt head is a threaded rod, the bolt penetrates long strip-shaped slot (53) and is screw-connected with shell (2).

7. A hand operating device for an electric operating mechanism of a tap changer according to claim 1, characterized in that Operating shaft (1) is provided with first gear (12), and second gear (41) is arranged at the lower end of output shaft (4) and is driven by gear engagement.

8. A hand operating device for an electric operating mechanism of a tap changer according to claim 7, characterized in that First gear (12) and second gear (41) are bevel gears.

9. A hand operating device for an electric operating mechanism of a tap changer according to claim 2, characterized in that The interface (11) is a square groove, and the cross section of the joint (72) is a square.

10. A hand operating device for an electric operating mechanism of a tap changer according to claim 1, characterized in that Operating shaft (1) is installed in the inside of shell (2) through bearing (8).

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