Operating mechanism of gas insulated switchgear

Abstract

The utility model belongs to the technical field of electric power equipment, and particularly relates to a gas insulated switchgear operating mechanism, which comprises a frame consisting of a bottom plate, a partition plate and a panel, button mechanisms for driving a closing rotating shaft and an opening rotating shaft to respectively perform closing and opening operations are assembled on the panel beside the closing rotating shaft and the opening rotating shaft, and each button mechanism comprises a fixed column. A button body sleeves the fixed column, the button body comprises a movable sleeve and a button cover, a driving block is fixedly arranged on one side of the movable sleeve, an arc-shaped driving surface is arranged on one side of the driving block, rollers are rotationally arranged on one side of the closing rotating shaft and one side of the opening rotating shaft through connecting rods, and arc surfaces matched with the arc-shaped driving surface are arranged on the peripheral sides of the rollers; according to the utility model, through the design of the button structure, the operation accuracy is ensured, the abrasion of parts is reduced, the service life is prolonged, the maintenance cost is reduced, the operation efficiency and the stability of the gas-insulated switchgear are improved, and the reliable operation of an electric power system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of power equipment, specifically is a kind of inflatable cabinet operating mechanism. BACKGROUND

[0002] Inflatable cabinet operating mechanism is the key component of inflatable cabinet, for controlling switch closing and opening, the mechanism compact structure, operation flexible, interlock reliable, it is applicable to small secondary substation, switching station, box-type substation etc., with the development of technology, inflatable cabinet operating mechanism is constantly innovated, improves technical performance and safety.

[0003] The existing inflatable cabinet operating mechanism is mainly composed of the following parts: drive shaft, pivot, connecting rod, transmission rod, signboard and interlock system components, by operating handle or electric device drive drive shaft rotation, and then drive other components movement, realize switch closing and opening, simultaneously, interlock system ensures that in specific state, other related operation cannot be carried out, prevent misoperation.

[0004] The existing inflatable cabinet operating mechanism in prior art has the following shortcomings: when manually closing and opening, the fan-shaped block on button pushes closing pivot or opening pivot to rotate to close and open, since the fan-shaped block on button pushes closing pivot or opening pivot to rotate is hard sliding friction, friction coefficient is larger, there is a certain degree of wear after long time use, lead to button jamming difficult to use;Therefore, aiming at the above problems, a kind of inflatable cabinet operating mechanism is proposed. INVENTION CONTENTS

[0005] In order to make up for the deficiency of existing inflatable cabinet operating mechanism, solve the problem that when manually closing and opening, the fan-shaped block on button pushes closing pivot or opening pivot to rotate to close and open, since the fan-shaped block on button pushes closing pivot or opening pivot to rotate is hard sliding friction, friction coefficient is larger, there is a certain degree of wear after long time use, lead to button jamming difficult to use, a kind of inflatable cabinet operating mechanism is proposed.

[0006] The utility model discloses a technical scheme that solves its technical problem is adopted: The utility model discloses an operating mechanism of inflation cabinet, including the rack that is composed of bottom plate, baffle, panel, bottom plate, baffle, panel three are fixed assembly through fixed pillar, the operating device is assembled on the rack, the operating device includes closing shaft, opening shaft, the energy storage mechanism for providing the closing and opening power is assembled between bottom plate and baffle, the energy storage motor for the energy storage of energy storage mechanism is still provided with on the rack, the connecting rod transmission mechanism for manual energy storage is assembled between baffle and panel, the connecting rod transmission mechanism includes the manual energy storage pivot for driving, the panel is located closing shaft, opening shaft both sides and is assembled with the button mechanism for driving two respectively closing and opening operation, the button mechanism includes fixed column, the button body is sleeved on the fixed column, the button body includes the movable cover of sliding cover in fixed column, the one end of movable cover is fixedly provided with the button cover for operating, and the movable cover is connected with the reset spring of button body reset between panel and the fixed column circumferential side end, the one side of movable cover is fixedly provided with the drive block, the one side of drive block is provided with the arc drive surface, the one side of closing shaft, opening shaft is all set up with the gyro wheel through connecting rod rotation, and the circumferential side of gyro wheel is provided with the cam surface that cooperates with arc drive surface.

[0007] Preferably, the arc drive surface and the cam surface are both involute structures matched with each other.

[0008] Preferably, the movable cover is provided with a guide groove, and the fixed column is fixedly provided with a guide column matched with the guide groove, and the guide groove and the guide column are used to limit the movement of the button body.

[0009] Preferably, the panel is provided with an electromagnet driving mechanism matched with the closing shaft and the opening shaft on both sides of the closing shaft and the opening shaft, and the electromagnet driving mechanism is used to drive the closing shaft and the opening shaft to perform closing and opening operations respectively.

[0010] Preferably, the arc drive surface is provided with a polytetrafluoroethylene coating on a matched surface of the arc drive surface and the cam surface.

[0011] Preferably, the cam surface is made of ceramic on a matched surface of the cam surface and the arc drive surface.

[0012] The utility model discloses the beneficial effect:

[0013] The utility model provides a kind of operating mechanism of inflation cabinet, by the design of button structure, it solves the hard friction when traditional structure drives, and the unstable problem of force transmission caused by the angle change of contact surface, realizes smooth force transmission by constant pressure angle, greatly improves operation accuracy, reliability, avoids the jam in closing and opening operation, so that operation is more smooth, this structure guarantees operation accuracy, reduces component wear, prolongs service life, reduces maintenance cost, improves inflation cabinet operating efficiency, stability, guarantees the reliable operation of power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 It is a structural stereogram of the entire utility model;

[0016] Figure 2 It is a side view of the overall structure of the utility model;

[0017] Figure 3 yes Figure 2 A magnified view of the structure at point A;

[0018] Legend:

[0019] 1. Frame; 01. Base plate; 02. Partition; 03. Panel; 100. Fixed pillar; 2. Operating device; 3. Connecting rod transmission mechanism; 4. Energy storage mechanism; 5. Opening shaft; 6. Closing shaft; 601. Roller; 6011. Arc surface; 7. Electromagnet drive mechanism; 8. Energy storage motor; 9. Button mechanism; 901. Fixed pillar; 902. Button body; 9021. Movable sleeve; 9022. Button cover; 903. Drive block; 9031. Arc-shaped drive surface; 904. Guide groove; 905. Guide pillar; 906. Reset spring; 10. Manual energy storage shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] Specific examples are given below.

[0022] See also Figures 1-3The utility model describes an inflatable cabinet operating mechanism, comprising a frame 1 consisting of a bottom plate 01, a partition plate 02, and a panel 03. The bottom plate 01, the partition plate 02, and the panel 03 are fixedly assembled by a fixed support 100. The frame 1 is equipped with an operating device 2, and the operating device 2 includes a closing shaft 6 and an opening shaft 5. An energy storage mechanism 4 for providing power for closing and opening is installed between the bottom plate 01 and the partition plate 02. An energy storage motor 8 for storing energy for the energy storage mechanism 4 is also provided on the frame 1. A The connecting rod transmission mechanism 3 for manual energy storage includes a manual energy storage shaft 10 for driving. The panel 03 is equipped with a button mechanism 9 for driving the closing shaft 6 and the opening shaft 5 to respectively perform closing and opening operations. The button mechanism 9 includes a fixed column 901, and a button body 902 is mounted on the fixed column 901. The button body 902 includes a movable sleeve 9021 slidably mounted on the fixed column 901, and a button cover 90 for operation is fixedly provided at one end of the movable sleeve 9021. 22, the movable sleeve 9021 and the panel 03 and the fixed column 901 are connected to the reset spring 906 for the button body 902 to reset. The movable sleeve 9021 is fixedly provided with a driving block 903 on one side. The driving block 903 is provided with an arc-shaped driving surface 9031 on one side. The closing shaft 6 and the opening shaft 5 are both provided with rollers 601 on one side through the connecting rod. The roller 601 is provided with an arc surface 6011 on the side that matches the arc driving surface 9031. The arc driving surface 9031 and the arc surface 6011 are both Matching involute structure; when working, the overall structure of the frame 1 is to firmly connect the bottom plate 01, the partition plate 02 and the panel 03 through the fixed pillar 100, which builds a stable structural foundation for the entire operating mechanism. The closing shaft 6 and the opening shaft 5 of the operating device 2 are the key rotating parts to realize the opening and closing actions of the inflatable cabinet. The energy storage mechanism 4 is driven by the energy storage motor 8 to realize automatic energy storage, which reserves sufficient power for the opening and closing operations. At the same time, the manual energy storage shaft 10 of the connecting rod transmission mechanism 3 can manually store energy for the energy storage mechanism 4 under special circumstances, which increases the flexibility of operation.When the staff operates the closing or opening operation, they press the button cover 9022, and the movable sleeve 9021 slides downward along the fixed column 901, driving the drive block 903 to move, and the arc-shaped drive surface 9031 of the drive block 903 contacts the arc-shaped surface 6011 of the roller 601. Since the two are designed as a matching involute structure, the characteristics of the involute make the normal of any point on the arc-shaped drive surface 9031 tangent to the base circle during the entire pressing process, which ensures that the pressure angle is always constant during contact. This constant pressure angle makes the component of the force exerted by the drive block 903 on the roller 601 in the tangential direction stable, thereby smoothly and accurately converting the linear motion into the rotation of the roller 601. The roller 601 is connected to the closing shaft 6 or the opening shaft 5 through a connecting rod, thereby driving the closing shaft 6 or the opening shaft 5 to rotate, thereby realizing the closing or opening operation of the inflatable cabinet; operation After completion, the return spring 906 returns the button body 902 to its initial position, ready for the next operation. Through the special design of the above-mentioned structure of the utility model, the involute arc-shaped driving surface 9031 and the arc surface 6011 cooperate to fundamentally solve the problem of unstable force transmission caused by the change of contact surface angle during the driving process of traditional structures. By ensuring a constant pressure angle, smooth force transmission is achieved, greatly improving the accuracy and reliability of operation. Whether in closing or opening operations, it can effectively avoid the jamming caused by force fluctuations, making operation smoother and further improving the performance of the entire inflatable cabinet operating mechanism. During long-term and frequent operation, it can reduce component wear, extend the service life of the operating mechanism, reduce maintenance costs, improve the overall operating efficiency and stability of the inflatable cabinet, and ensure the reliable operation of the power system.

[0023] Furthermore, a guide groove 904 is provided on the movable sleeve 9021, and a guide column 905 that cooperates with the guide groove 904 is fixedly provided on the fixed column 901, and the two are used to limit the movement of the button body 902; during operation, when the button is pressed or released, during the movement of the movable sleeve 9021 of the button body 902, the cooperation between the guide groove 904 and the guide column 905 limits the movable sleeve 9021 to only slide in a straight line along the fixed column 901, preventing the button body 902 from making irregular movements such as deviation and shaking. Through this guide structure, the linearity and stability of the movement of the button body 902 are guaranteed, so that the driving block 903 can accurately cooperate with the roller 601, thereby improving the accuracy and reliability of the operation, reducing operational errors that may be caused by button shaking, and extending the service life of the operating mechanism.

[0024] Further, the panel 03 is equipped with an electromagnet driving mechanism 7 beside the closing shaft 6 and the opening shaft 5 for driving the closing and opening operations, respectively. When the closing or opening operation is needed, the electromagnet driving mechanism 7 receives the corresponding electrical signal, and the electromagnet generates a magnetic field after being powered on, which acts on the relevant transmission components of the closing shaft 6 or the opening shaft 5 through electromagnetic force, drives the closing shaft 6 or the opening shaft 5 to rotate, and realizes the closing or opening action of the surge tank. This driving mode is independent of the mechanical driving mode of the button mechanism 9 and can be used as a backup, which increases the flexibility and reliability of the operating mechanism. In some cases, such as button mechanism failure or remote control, the electromagnet driving mechanism 7 can play a role to ensure the normal operation of the surge tank, further improving the applicability of the entire surge tank under different working conditions.

[0025] Further, the arc-shaped driving surface 9031 of the driving block 903 is coated with a polytetrafluoroethylene coating. During the button operation, the arc-shaped driving surface 9031 of the driving block 903 and the arc surface 6011 of the roller 601 come into contact and move relative to each other. The polytetrafluoroethylene coating has a very low friction coefficient, which can effectively reduce the friction between the two contact surfaces, making the arc-shaped driving surface 9031 more smooth when pushing the arc surface 6011 to rotate. This reduces the friction during operation, reduces wear and jamming caused by friction, further improves the smoothness and comfort of operation, and helps to prolong the service life of the driving block 903 and the roller 601, reducing maintenance costs and ensuring long-term stable operation of the operating mechanism.

[0026] Further, the arc surface 6011 of the roller 601 is made of ceramic. When the arc-shaped driving surface 9031 of the driving block 903 comes into contact with the arc surface 6011 of the roller 601, the ceramic arc surface 6011 with high hardness and smooth surface forms a low-friction and wear-resistant combination with the polytetrafluoroethylene-coated arc-shaped driving surface 9031. During force transmission, it can better withstand pressure and friction, ensuring the stable rotation of the roller 601. The use of ceramic further improves the wear resistance and smoothness of the contact surface, which complements the polytetrafluoroethylene coating, greatly reduces the possibility of jamming, and ensures that the operating mechanism can maintain good performance during frequent operation, improving the reliability and durability of the entire surge tank operating mechanism.

[0027] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. An inflatable cabinet operating mechanism, comprising a frame (1) consisting of a base plate (01), a partition plate (02), and a panel (03), wherein the base plate (01), the partition plate (02), and the panel (03) are fixedly assembled by fixed pillars (100), and an operating device (2) is assembled on the frame (1), characterized in that: The operating device (2) comprises a closing shaft (6) and an opening shaft (5); an energy storage mechanism (4) for providing power for closing and opening is provided between the base plate (01) and the partition plate (02); an energy storage motor (8) for storing energy for the energy storage mechanism (4) is also provided on the frame (1); a connecting rod transmission mechanism (3) for manual energy storage is provided between the partition plate (02) and the panel (03); the connecting rod transmission mechanism (3) comprises a manual energy storage shaft (10) for driving; a button mechanism (9) for driving the closing shaft (6) and the opening shaft (5) to respectively perform closing and opening operations is provided on the panel (03); the button mechanism (9) comprises a fixed column (901); and a button body (902) is mounted on the fixed column (901). The button body (902) includes a movable sleeve (9021) that is slidably mounted on a fixed column (901), a button cover (9022) for operation is fixedly mounted on one end of the movable sleeve (9021), a reset spring (906) for resetting the button body (902) is connected between the movable sleeve (9021) and the panel (03) and located on the peripheral side of the fixed column (901), a driving block (903) is fixedly mounted on one side of the movable sleeve (9021), and an arc-shaped driving surface (9031) is provided on one side of the driving block (903), and a roller (601) is provided on one side of each of the closing shaft (6) and the opening shaft (5) for rotation via a connecting rod, and an arc-shaped surface (6011) is provided on the peripheral side of the roller (601) that matches the arc-shaped driving surface (9031).

2. The inflatable cabinet operating mechanism according to claim 1, characterized in that: The arc-shaped driving surface (9031) and the arc surface (6011) are both matched involute structures.

3. The inflatable cabinet operating mechanism according to claim 1, characterized in that: The movable sleeve (9021) is provided with a guide groove (904), and the fixed column (901) is fixedly provided with a guide column (905) that cooperates with the guide groove (904), and the two are used to limit the movement of the button body (902).

4. The inflatable cabinet operating mechanism according to claim 1, characterized in that: The panel (03) is equipped with an electromagnet drive mechanism (7) located beside the closing rotating shaft (6) and the opening rotating shaft (5) for driving the two to perform closing and opening operations respectively.

5. The inflatable cabinet operating mechanism according to claim 1, characterized in that: A polytetrafluoroethylene coating is provided on the surface of the arc-shaped driving surface (9031) that matches the arc surface (6011).

6. The inflatable cabinet operating mechanism according to claim 1, characterized in that: The surface material of the matching surface of the arc surface (6011) and the arc-shaped driving surface (9031) is ceramic.

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