Support of spring operating mechanism with high operating power

Abstract

The utility model relates to a support of a spring operating mechanism with high operating power, which comprises a support body and a spring support, the support body and the spring support adopt a cast integrated structure and are arranged front and back, the support body comprises a vertical face I, a vertical face II and a vertical face III which are parallel to each other, and further comprises a vertical face IV, the outer sides of the facade I and the facade II adopt stepped surface structures and are positioned on the two sides of the facade III, the facade III adopts a semi-enclosed structure and is arranged at the upper half part of the bracket body, the facade IV is vertically and fixedly connected with the other three facades, and a round hole and a T-shaped hole are formed in the side surface of the facade IV; the spring support is of a cylindrical structure and comprises a left cylinder and a right cylinder located on the two sides of the vertical face II, the two ends of the left cylinder and the right cylinder are fixedly connected with the vertical face IV and the vertical plate respectively, the left cylinder is used for installing an opening spring, and the right cylinder is used for installing a closing spring. The switch-on and switch-off spring is of a cast integrally-formed structure, machining strength is guaranteed, transmission precision and reliability of assembly parts are guaranteed, and flexible application of the switch-on and switch-off spring is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers or GIS products, in particular to a bracket of a high-operating-power spring operating mechanism. Background Art

[0002] High-voltage circuit breakers refer to mechanical switching devices that can open, close and carry the normal current of the operating line, and can also carry, open and close abnormal current within a specified time. They are the most important control and protection equipment in the power system. The opening and closing action of the contacts in the circuit breaker is driven by the operating mechanism. The working performance of the operating mechanism directly affects the opening and closing characteristics and action reliability of the circuit breaker. The operating mechanisms of high-voltage circuit breakers mainly include hydraulic operating mechanisms, spring operating mechanisms and pneumatic operating mechanisms. Due to the characteristics of fast response, small size, light weight, simple structure, low operating noise and no pollution to the environment, the spring operating mechanism has been widely used in various self-energy and semi-self-energy arc extinguishing chambers with relatively small operating power, especially in the voltage level of 126~252kV. The spring operating mechanism has become the preferred mechanism due to its many advantages.

[0003] With the continuous development of industrial technology and the continuous improvement of switch technology research at home and abroad, on the one hand, circuit breakers are also developing in the direction of miniaturization, intensiveness, low cost and high reliability, the breaking capacity is constantly improving, and the required mechanism operating power is relatively reduced; on the other hand, due to the development of spring mechanisms for many years, some design and application experience has been accumulated. Based on the above two aspects, high operating power spring mechanisms came into being and were highly praised by various manufacturers. They were applied to 252kV 3P1T and 363kV / 420kV / 550kV 1P1T, and a large number of projects have been put into field use. Utility Model Content

[0004] In order to better support and fix the high-operating-power spring mechanism of the high-voltage circuit breaker, the utility model provides a bracket of the high-operating-power spring operating mechanism, which can be used for all series of products with high voltage levels below 550kV. The bracket adopts a one-piece casting molding, which can ensure the transmission accuracy between the components installed on the bracket and improve the stability and reliability of the product; in addition, the overall structure of the bracket adopts a vertical structure, and the arrangement of components is flexible, which realizes installation and output forms in different directions and angles, can adapt to various types of circuit breaker products and can be used for high operating power.

[0005] The utility model is realized by the following technical solutions:

[0006] A bracket for a high-operating-power spring operating mechanism comprises a bracket body and a spring support, characterized in that the bracket body and the spring support adopt an integrally cast structure and are arranged front to back; the bracket body comprises mutually parallel facades I, II and III, and also comprises facade IV, the facade I for installing a motor and an energy storage retention system and the facade II for installing a gate-opening release system both have stepped surface structures on the outside and are located on both sides of facade III, the facade III for installing a pin shaft adopts a semi-enclosed structure and is arranged in the upper half of the bracket body, the facade IV for installing a gate-opening spring and a gate-closing spring is vertically fixedly connected to the other three facades, and a round hole and a T-shaped hole are arranged on its side; the spring support adopts a cylindrical structure, comprising a left cylinder and a right cylinder located on both sides of facade II, the two ends of the left cylinder and the right cylinder are respectively fixedly connected to facade IV and a vertical plate, the left cylinder is used to install a gate-opening spring, and the right cylinder is used to install a gate-closing spring.

[0007] Furthermore, the circular hole is arranged in the lower middle part of facade IV between facade I and facade II for installing the opening spring, and the T-shaped hole is arranged in the middle part of facade IV outside facade II.

[0008] Furthermore, a reinforcement plate is provided at the connection between facade IV and facade II.

[0009] Furthermore, two corresponding through holes are arranged between facade I and facade II.

[0010] Furthermore, two threaded holes are set on the front side of facade I and two threaded holes are set on the bottom side, and two threaded holes are set on the front side of facade II and two threaded holes are set on the bottom side, so that the bracket can be installed and fixed from both the side and bottom directions.

[0011] Furthermore, rear beams are arranged on the upper parts of the facades I, II and III to fix the facades I, II and III as a whole.

[0012] Furthermore, front beams and reinforcing ribs are arranged at the front end and both sides of facades I and II to fix facades I and II together, facade III and facade I form a left cavity, facade III and facade II form a right cavity, and the lower part of facade III forms a lower cavity, and relevant parts are installed in the three cavities.

[0013] Furthermore, a plurality of bosses are provided at the position between facade III and facade II where no parts are installed, for the overall support of the pin shaft.

[0014] Furthermore, an observation window is provided on the upper surface of the right cylinder for observing the compression and release status of the closing spring.

[0015] Furthermore, six mounting holes are arranged at the rear end of the spring support, of which two are arranged on the opening spring side, two are arranged on the closing spring side, and two are arranged in the middle.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects: a bracket of a high-operating-power spring operating mechanism, comprising a bracket body and a spring support, the bracket body and the spring support adopt a cast integrally formed structure and are arranged front and back; the bracket body comprises mutually parallel facades I, II and III, and also comprises facade IV, facade I adopts a stepped surface structure for the installation of a motor and an energy storage retention system; the outer side of facade II adopts a stepped surface structure for the installation of a gate-opening release system; facades I and II are located on both sides of facade III, and facade III adopts a semi-enclosed structure and is arranged only above the middle part, which can save most of the space in the lower inner part of the bracket and reduce the weight of the bracket; facade IV is vertically fixedly connected to the other three facades, and circular holes and T-shaped holes are arranged on its side; the spring support adopts a cylindrical structure, comprising a left cylinder and a right cylinder located on both sides of facade II, the two ends of the left cylinder and the right cylinder are respectively fixedly connected to facade IV and a vertical plate, the left cylinder is used to install a gate-opening spring, and the right cylinder is used to install a closing spring, and the spring support is cast as one piece with the vertical plate.

[0017] Furthermore, the circular hole is arranged in the middle and lower part of the facade IV4 between the facades I and II for installing the opening spring, and the T-shaped hole is arranged in the middle part of the facade IV4 outside the facade II2.

[0018] Furthermore, a reinforcing plate is provided at the connection between facade IV and facade II to ensure the mechanical strength of the two facades.

[0019] Furthermore, two corresponding through holes are provided between facade I and facade II to facilitate the installation of the energy storage camshaft and the output shaft.

[0020] Furthermore, two threaded holes are set on the front side of facade I and two threaded holes are set on the bottom side, and two threaded holes are set on the front side of facade II and two threaded holes are set on the bottom side, so that the bracket can be installed and fixed from both the side and bottom directions to ensure that the overall bracket is installed firmly.

[0021] Furthermore, rear beams are arranged on the upper parts of facades I, II and III to fix the three facades as a whole, thereby ensuring that the three facades are parallel to each other and do not deform.

[0022] Furthermore, front beams and reinforcing ribs are arranged at the front end and both sides of facades I and II to fix the two facades together. Facade III and facade I form a left cavity, facade III and facade II form a right cavity, and the lower part of facade III forms a lower cavity. Relevant parts are installed in the three cavities without interfering with each other, and the adaptability is strong.

[0023] Furthermore, a plurality of bosses are provided at the position between facades III and II where no parts are installed, for overall support of the pin shaft and to improve the strength of the parts.

[0024] Furthermore, an observation window is provided on the upper surface of the right cylinder for observing the compression and release state of the closing spring, thereby reflecting the information of whether the mechanism has stored energy or not.

[0025] Furthermore, six mounting holes are arranged at the rear end of the spring support, including two holes on the opening spring side, two holes on the closing spring side, and two holes in the middle. The length of the spring tube may be extended as required according to actual conditions to meet the characteristic requirements of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram a of the high operating power spring operating mechanism of the utility model;

[0027] Figure 2 b is an overall schematic diagram of the high operating power spring operating mechanism of the utility model;

[0028] Figure 3 It is a front view of the support body of the high operating power spring operating mechanism of the utility model;

[0029] Figure 4 It is a left view of the support body of the high operating power spring operating mechanism of the utility model;

[0030] Figure 5 It is a right view of the bracket body of the high operating power spring operating mechanism of the utility model;

[0031] Figure 6 It is a top view of the support body of the high operating power spring operating mechanism of the utility model;

[0032] Figure 7 It is a schematic diagram of a vertical plate of a high operating power spring operating mechanism of the utility model;

[0033] Figure 8 It is an overall front view of the high operating power spring operating mechanism of the utility model;

[0034] Fig. 9 It is an overall left view of the high operating power spring operating mechanism of the utility model;

[0035] Fig.10 It is a schematic elevation I of the high operating power spring operating mechanism of the utility model;

[0036] Fig.11 It is a schematic elevation II of the high operating power spring operating mechanism of the utility model;

[0037] Fig.12 It is a schematic elevation III diagram of the high operating power spring operating mechanism of the utility model;

[0038] Fig.13It is a schematic elevation IV diagram of the high operating power spring operating mechanism of the utility model.

[0039] Among them, 1 is facade I, 2 is facade II, 3 is facade III, 4 is facade IV, 5 is vertical plate, 6 is trapezoidal reinforcing plate, 7 is rear beam, 8 is front beam, 9 is reinforcing rib, 10 is boss, 11 is observation window, 12 is mounting hole, 13 is round hole, 14 is T-shaped hole, 15 is through hole, 16 is right tube, and 17 is left tube. DETAILED DESCRIPTION

[0040] The utility model is further described in detail below with reference to the accompanying drawings:

[0041] The utility model discloses a bracket of a high-operating-power spring operating mechanism, comprising a bracket body and a spring support, wherein the bracket body and the spring support adopt an integrally cast structure and are arranged front to back; the bracket body comprises a mutually parallel facade Ⅰ1, a facade Ⅱ2 and a facade Ⅲ3, and also comprises a facade Ⅳ4, the facade Ⅰ1 for installing a motor and an energy storage holding system and the facade Ⅱ2 for installing a gate-opening release system both adopt a stepped surface structure on the outer sides and are located on both sides of the facade Ⅲ3, the facade Ⅲ3 for installing a pin shaft adopts a semi-enclosed structure and is arranged on the upper half of the bracket body, the facade Ⅳ4 for installing a gate-opening spring and a gate-closing spring is vertically fixedly connected to the other three facades, and a round hole 13 and a T-shaped hole 14 are arranged on its side; the spring support adopts a cylindrical structure, comprising a left cylinder 17 and a right cylinder 16 located on both sides of the facade Ⅱ2, the two ends of the left cylinder 17 and the right cylinder 16 are respectively fixedly connected to the facade Ⅳ4 and the vertical plate 5, the left cylinder 17 is used to install the gate-opening spring, and the right cylinder 16 is used to install the gate-closing spring.

[0042] Specifically, the circular hole 13 is arranged at the middle and lower part of the facade IV4 between the facades I1 and II2 for installing the opening spring, and the T-shaped hole 14 is arranged at the middle part of the facade IV4 outside the facade II2.

[0043] More preferably, a reinforcing plate 6 is provided at the connection between facade IV4 and facade II2.

[0044] Specifically, two corresponding through holes 15 are arranged between the facade Ⅰ1 and the facade Ⅱ2.

[0045] Preferably, two threaded holes are set on the front side of facade Ⅰ1 and two threaded holes are set on the bottom side, and two threaded holes are set on the front side of facade Ⅱ2 and two threaded holes are set on the bottom side, so that the bracket can be installed and fixed from both the side and bottom directions.

[0046] Specifically, rear beams 7 are arranged on the upper parts of facades Ⅰ1, Ⅱ2 and Ⅲ3 to fix the three facades into one.

[0047] Specifically, front beams 8 and reinforcing ribs 9 are arranged at the front end and both sides of facade I1 and facade II2 to fix facade I1 and facade II2 together, facade III3 and facade I1 form a left cavity, facade III3 and facade II2 form a right cavity, and the lower part of facade III3 forms a lower cavity, and relevant parts are installed in the three cavities.

[0048] Specifically, a plurality of bosses 10 are provided at a position between the facade III3 and the facade II2 where no parts are installed, for overall support of the pin shaft.

[0049] Preferably, an observation window 11 is provided on the upper surface of the right cylinder for observing the compression and release status of the closing spring.

[0050] Specifically, six mounting holes 12 are arranged at the rear end of the spring support, of which two are arranged on the opening spring side, two are arranged on the closing spring side, and two are arranged in the middle, and the length of the spring tube needs to be extended according to actual conditions.

[0051] like Figure 1 and Figure 2 As shown, the bracket body includes mutually parallel facades Ⅰ1, Ⅱ2 and Ⅲ3, and also includes another facade Ⅳ4 arranged perpendicularly thereto. The outer side of facade Ⅰ1 adopts a stepped surface structure for the installation of the motor and the energy storage retention system; the outer side of facade Ⅱ2 also adopts a stepped surface structure for the installation of the opening release system; facade Ⅲ3 adopts a special structure and is arranged only above the middle part, which can save most of the space in the lower inner part of the bracket and reduce the weight of the bracket; facade Ⅳ4 is arranged perpendicularly to the other three facades, and a larger round hole 13 and a T-shaped hole 14 are provided on its surface, one of which is in the lower middle part between facade Ⅰ1 and facade Ⅱ2 for the installation of the opening spring, and the other hole is in the middle of the outer side of facade Ⅱ2.

[0052] like Figure 1-Figure 13 As shown, two trapezoidal reinforcing plates 6 are provided at the connection position of facade IV4 and facade II2, and two through holes are provided between facade I1 and facade II2 for installation of energy storage camshaft and output shaft; two threaded holes are provided on the front side of facade I1 and two threaded holes are provided on the bottom side, and two threaded holes are provided on the front side of facade II2 and two threaded holes are provided on the bottom side. In general, there are 4 threaded holes on the facade and 4 threaded holes on the bottom surface, totaling 8 threaded holes, and the bracket can be installed and fixed from both the side and bottom directions; a rear beam 7 is provided on the upper part of facade I1, facade II2 and facade III3 to fix the three facades together, and a front beam 8 and reinforcing ribs 9 are provided on the front and lower ends of facade I1 and facade II2 to fix the two facades together, thereby increasing the consistency and strength of the bracket; the position where the pin is installed between facade III3 and facade II2 only retains the installation space and distance of the components on the shaft, and a number of bosses are provided at the position where the parts are not installed, which are used for the overall support of the pin and improve the strength of the components.

[0053] like Figure 6-Figure 9 As shown, the spring support and the vertical plate 5 are integrally cast. The spring support adopts a cylindrical structure, which is divided into a left cylinder 17 and a right cylinder 16, which are respectively located on both sides of the vertical surface II 2. The left cylinder 17 is used to install the opening spring, and the right cylinder 16 is used to install the closing spring. An observation window 11 is opened on the closing spring, which can be used to observe the compression and release state of the closing spring, and then reflect the information of whether the spring operating mechanism has stored energy or not. The rear end of the spring support 2 is provided with 6 mounting holes 12, of which 2 are reserved on the opening spring side, 2 are reserved on the closing spring side, and 2 are reserved in the middle part. The length of the spring cylinder can be extended according to actual needs to meet the characteristic requirements of the mechanism.

Claims

1. A bracket for a high-operating-power spring operating mechanism, characterized in that: It includes a bracket body and a spring support, the bracket body and the spring support adopt a cast integrated structure and are arranged front and back; The support body comprises mutually parallel facades I (1), II (2) and III (3), and also comprises facade IV (4). The outer sides of facade I (1) for installing the motor and energy storage retention system and facade II (2) for installing the opening release system both adopt a stepped surface structure and are located on both sides of facade III (3). The facade III (3) for installing the pin shaft adopts a semi-enclosed structure and is arranged on the upper half of the support body. The facade IV (4) for installing the opening spring and the closing spring is vertically fixedly connected to the other three facades, and a round hole (13) and a T-shaped hole (14) are arranged on the side surface thereof. The spring support adopts a cylinder structure, including a left cylinder (17) and a right cylinder (16) located on both sides of the facade II (2). The two ends of the left cylinder (17) and the right cylinder (16) are respectively fixedly connected to the facade IV (4) and the vertical plate (5). The left cylinder (17) is used to install the opening spring, and the right cylinder (16) is used to install the closing spring.

2. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: The circular hole (13) is arranged at the middle and lower part of the facade IV (4) between the facade I (1) and the facade II (2) for installing the opening spring, and the T-shaped hole (14) is arranged at the middle part of the facade IV (4) outside the facade II (2).

3. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: A reinforcing plate (6) is provided at the connection between the facade IV (4) and the facade II (2).

4. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: Two corresponding through holes (15) are arranged between the facade I (1) and the facade II (2).

5. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: The front side of the facade I (1) is provided with two threaded holes, and the bottom side is provided with two threaded holes, and the front side of the facade II (2) is provided with two threaded holes, and the bottom side is provided with two threaded holes, so as to install and fix the bracket from both the side and bottom directions.

6. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: A rear beam (7) is arranged on the upper part of the facade I (1), facade II (2) and facade III (3) for fixing the facade I (1), facade II (2) and facade III (3) as a whole.

7. The bracket of the high operating power spring operating mechanism according to claim 6, characterized in that: Front beams (8) and reinforcing ribs (9) are arranged at the front ends and both sides of the facades I (1) and II (2) to fix the facades I (1) and II (2) together; the facades III and the facades I form a left cavity; the facades III and the facades II form a right cavity; the lower part of the facade III forms a lower cavity; and the three cavities are all equipped with relevant parts.

8. The bracket of the high operating power spring operating mechanism according to claim 6, characterized in that: A plurality of bosses (10) are arranged at the position between the facade III (3) and the facade II (2) where no parts are installed, for overall support of the pin shaft.

9. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: An observation window (11) is provided on the upper surface of the right side tube for observing the compression and release states of the closing spring.

10. The bracket of the high operating power spring operating mechanism according to claim 1, characterized in that: Six mounting holes (12) are arranged at the rear end of the spring support, of which two are arranged on the opening spring side, two are arranged on the closing spring side, and two are arranged in the middle.

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