High-voltage co-phase circuit breaker mechanism module

Abstract

A high-voltage co-phase circuit breaker mechanism module comprises a box body, a spring operation mechanism is arranged in the box body, the back face of the box body is connected with an installation plate, and the installation plate is connected with three crank arm boxes which are arranged in a horizontal array mode. A connecting rod mechanism is connected between the spring operating mechanism and the crank arm box and is used for being connected with a switch element of the circuit breaker; the connecting rod mechanism comprises a first connecting rod driven by a spring operating mechanism to do telescopic motion, and a second connecting rod and a third connecting rod which are collinear and staggered with the first connecting rod; the other end of the first connecting rod is connected with a main connecting lever, the main connecting lever is vertically and rotatably connected to a connecting lever box in the middle and comprises a driving connecting lever and a driven connecting lever which are coaxial up and down and staggered, the driving connecting lever is hinged to the first connecting rod, and the driven connecting lever is coaxially hinged to the opposite ends of the second connecting rod and the third connecting rod; and the other two crank arm boxes are rotationally connected with side-phase crank arms respectively and are hinged with the other ends of the second connecting rod and the third connecting rod respectively. Modularized production is achieved, quality can be conveniently controlled, many uncontrollable troubles caused when a customer assembles outside are avoided, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage circuit breakers, in particular to a high-voltage common-phase circuit breaker mechanism module. Background Art

[0002] The high-voltage common-phase circuit breaker mechanism module is a GIS supporting product, which is used to connect the circuit breaker operating mechanism with the circuit breaker breaking element. The outside mainly plays a supporting and sealing role, and the inside is equipped with a crank shaft transmission assembly, which is used to transmit the operating command and operating power of the operating mechanism to the contacts and other components of the circuit breaker breaking element, so as to realize the circuit breaker operating mechanism to drive the circuit breaker breaking element to perform opening and closing operations.

[0003] At present, customers need to purchase the crank box, internal transmission parts and external transmission parts in the existing transmission mechanism module separately from different manufacturers, and then assemble them by themselves and then do airtight tests. In order to solve the customer's adaptation problem and improve the customer's assembly efficiency, we combined the above components to design a transmission mechanism module, realizing overall modular supply, so that it can be supplied as an integrated unit with the circuit breaker mechanism, saving time and effort for customers. Utility Model Content

[0004] In view of the problems and shortcomings in the prior art, the utility model provides a high-voltage common-phase circuit breaker mechanism module.

[0005] The technical solution of this utility model is as follows:

[0006] A high-voltage common-phase circuit breaker mechanism module comprises a box body, a spring operating mechanism is arranged inside the box body, a mounting plate is connected to the back side, and three crank arm boxes arranged in a horizontal array are connected to the mounting plate;

[0007] It is characterized in that

[0008] A connecting rod mechanism is connected between the spring operating mechanism and the crank box, and is used to connect with the switch element of the circuit breaker, so as to drive the switch element of the circuit breaker to realize the opening and closing action;

[0009] The connecting rod mechanism comprises a first connecting rod driven by a spring operating mechanism to perform telescopic motion, and a second connecting rod and a third connecting rod co-linearly arranged with the first connecting rod and staggered;

[0010] The other end of the first connecting rod is connected to the main crank arm, and the main crank arm is vertically rotatably connected to the middle crank arm box; the main crank arm includes a driving crank arm and a driven crank arm which are coaxially and staggeredly arranged up and down, wherein the driving crank arm is hinged to the first connecting rod, and the driven crank arm is coaxially hinged to the opposite ends of the second connecting rod and the third connecting rod; the other two crank arm boxes are respectively rotatably connected to the side crank arms arranged in the driven crank arm array, and the side crank arms are respectively hinged to the other ends of the second connecting rod and the third connecting rod;

[0011] The lower ends of the driven crank arm and the two side phase crank arms are coaxially connected to the output crank arm respectively, so as to drive the switch element of the circuit breaker to operate.

[0012] According to a specific embodiment, the angle range of the horizontal projection of the main crank arm and the driven crank arm is 50°-70°, and the main crank arm is located on the side close to the box body, and the driven crank arm is located on the side away from the box body. Further, the angle range of the horizontal axial projection of the main crank arm and the driven crank arm can be 60°-65°. The length of the second connecting rod is equal to that of the third connecting rod. The length of the driven crank arm and the side crank arm is 12-18mm, preferably 15mm.

[0013] According to a specific embodiment, the main crank arm and the side crank arm are rotatably connected to the crank arm box through a crank arm shaft, and the lower part of the crank arm shaft is vertically rotatably connected to the crank arm box through a bearing, the main crank arm and the side crank arm are located above the outer side of the crank arm box, and the output crank arm is connected to the lower part of the crank arm shaft and is located inside the wall-mounted box.

[0014] A connecting plate is provided on the top of the crank arm shaft, one end of the connecting plate is fixedly connected to the box body, and the other end is fixedly connected to the crank arm box, and a cover plate is provided above the connecting plate. The crank arm shaft is a spline shaft, and shaft seals are provided at both ends, the upper end of the upper shaft seal is connected to the cover plate, and the bottom of the lower shaft seal is connected to the end cover.

[0015] Working principle: one end of the first connecting rod is connected to the spring operating mechanism located in the box body, and can be extended or shortened under the drive of the spring operating mechanism, thereby driving the driving crank arm hinged to it to swing around the crank arm axis, and at the same time, the driven crank arm integrally formed and staggered with it swings, and the swing of the driven crank arm drives the second connecting rod and the third connecting rod hinged to it to swing, thereby driving the side crank arms hinged to the other ends of the second connecting rod and the third connecting rod respectively to swing around the crank arm axis, thereby driving the three crank arm axes connected to the crank arm box to rotate, and the rotation of the crank arm axis drives the output crank arm connected to its lower part to swing around the crank arm axis, and the output crank arm is connected to the switching element of the circuit breaker and drives its action to realize the opening and closing operations of the circuit breaker.

[0016] The beneficial effects of the utility model are:

[0017] A connecting rod mechanism is arranged between the spring operating mechanism and the crank box, and the connecting rod mechanism includes a first connecting rod driven by the spring operating mechanism to perform telescopic movement, and a second connecting rod and a third connecting rod colinearly and staggered with the first connecting rod, the other end of the first connecting rod is connected to the main crank arm, and the main crank arm is vertically rotatably connected to the middle crank box; the main crank arm includes a driving crank arm and a driven crank arm which are coaxially and staggeredly arranged up and down, wherein the driving crank arm is hinged to the first connecting rod, and the driven crank arm is coaxially hinged to the opposite ends of the second connecting rod and the third connecting rod; the other two crank boxes are respectively rotatably connected to the side phase crank arms arranged in the driven crank arm array, and the side phase crank arms are respectively hinged to the other ends of the second connecting rod and the third connecting rod; the lower ends of the driven crank arm and the two side phase crank arms are respectively coaxially connected to the output crank arm, and the output crank arm is connected to the switching element of the circuit breaker, thereby driving the switching element of the circuit breaker to realize the opening and closing action.

[0018] The box body, crank box and connecting rod mechanism are combined together and supplied in an overall modular manner. Air tightness tests are carried out in the production site. If any problems are encountered, we can solve them ourselves in the factory, which makes it easier to control the quality and avoids many uncontrollable troubles for customers when assembling outside, saving time and labor.

[0019] Moreover, the utility model has high tensile strength, efficient transmission coordination, light weight, corrosion resistance, high processing precision and beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of an embodiment;

[0021] Figure 2 It is a partial enlarged view of the connecting rod mechanism;

[0022] Figure 3 It is a top view of the connecting rod mechanism;

[0023] Figure 4 It is a cross-sectional view of the crank arm shaft connection relationship;

[0024] 1. Box body; 2. Mounting plate; 3. Crank arm box; 4. Link mechanism; 41. First link; 42. Main crank arm; 421. Driving crank arm; 422. Driven crank arm; 43. Second link; 44. Side crank arm; 45. Third link; 46. Output crank arm; 47. Crank arm shaft; 48. Connecting plate; 49. Cover plate. DETAILED DESCRIPTION

[0025] The following will further describe the technical means adopted to achieve the predetermined inventive purpose of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0026] See also Figure 1 As shown, Figure 1 It is a perspective view of an embodiment.

[0027] A high-voltage common-phase circuit breaker mechanism module comprises a box body 1, a spring operating mechanism is arranged inside the box body, a mounting plate 2 is connected to the back side, and three crank arm boxes 3 arranged in a horizontal array are connected to the mounting plate 2;

[0028] A connecting rod mechanism 4 is connected between the spring operating mechanism and the crank box 3, and is used to connect with the switch element of the circuit breaker, so as to drive the switch element of the circuit breaker to realize the opening and closing action;

[0029] See also Figure 2 and Figure 3 As shown, Figure 2 It is a partial enlarged view of the connecting rod mechanism 4; Figure 3 It is a top view of the connecting rod mechanism 4.

[0030] The link mechanism 4 includes a first link 41 driven by a spring operating mechanism to perform telescopic motion, and a second link 43 and a third link 45 colinearly arranged with the first link 41 and staggered;

[0031] The other end of the first connecting rod 41 is connected to the main crank arm 42, and the main crank arm 42 is vertically rotatably connected to the middle crank arm box 3; the main crank arm 42 includes a driving crank arm 421 and a driven crank arm 422 coaxially and staggeredly arranged above and below, wherein the driving crank arm 421 is hinged to the first connecting rod 41, and the driven crank arm 422 is coaxially hinged to the opposite ends of the second connecting rod 43 and the third connecting rod 45; the other two crank arm boxes 3 are respectively rotatably connected to the side crank arms 44 arranged in an array with the driven crank arms 422, and the side crank arms 44 are respectively hinged to the other ends of the second connecting rod 43 and the third connecting rod 45;

[0032] See also Figure 4 As shown, Figure 4 It is a cross-sectional view of the connection relationship of the crank arm shaft 47.

[0033] The lower ends of the driven crank arm 422 and the two side phase crank arms 44 are coaxially connected to the output crank arm 46 for driving the switch element of the circuit breaker to operate.

[0034] See Figure 3 According to a specific embodiment, the angle between the horizontal projections of the main crank arm 42 and the driven crank arm 422 is in the range of 50°-70°, and the main crank arm 42 is located on the side close to the box body 1, and the driven crank arm 422 is located on the side away from the box body 1. Further, the angle between the horizontal projections of the main crank arm 42 and the driven crank arm 422 can be in the range of 60°-65°, that is, the projection of the normal plane of the main crank arm and the driven crank arm along the axis of their hinge holes is preferably 60°-65°. The second connecting rod 43 is equal to the third connecting rod 45. The length of the driven crank arm 422 and the side crank arm 44 is 12-18mm, preferably 15mm.

[0035] See Figure 4According to a specific embodiment, the main crank arm 42 and the side crank arm 44 are rotatably connected to the crank arm box 3 through a crank arm shaft 47, and the lower part of the crank arm shaft 47 is vertically rotatably connected to the crank arm box 3 through a bearing. The main crank arm 42 and the side crank arm 44 are located above the outer side of the crank arm box 3, and the output crank arm 46 is connected to the lower part of the crank arm shaft 47 and is located inside the wall-mounted box.

[0036] See Figure 1 A connecting plate 48 is provided on the top of the crank arm shaft 47, one end of the connecting plate 48 is fixedly connected to the box body 1, and the other end is fixedly connected to the crank arm box 3, and a cover plate 49 is provided above the connecting plate 48. The crank arm shaft 47 is a spline shaft, and shaft seals are provided at both ends, the upper end of the upper shaft seal is connected to the cover plate 49, and the bottom of the lower shaft seal is connected to the end cover.

[0037] Working principle: one end of the first connecting rod 41 is connected to the spring operating mechanism located in the box body 1, and can be extended or shortened under the drive of the spring operating mechanism, thereby driving the driving crank arm 421 hinged thereto to swing around the crank arm shaft 47, and at the same time, the driven crank arm 422 integrally formed and staggeredly arranged therewith swings, and the swing of the driven crank arm 422 drives the second connecting rod 43 and the third connecting rod 45 hinged thereto to swing, thereby driving the side phase crank arm 44 hinged to the other end of the second connecting rod 43 and the third connecting rod 45 respectively to swing around the crank arm shaft 47, thereby driving the three crank arm shafts 47 connected to the crank arm box 3 to rotate, and the rotation of the crank arm shaft 47 drives the output crank arm 46 connected to the lower part thereof to swing around the crank arm shaft 47, and the output crank arm 46 is connected to the switching element of the circuit breaker and drives its action to realize the opening and closing operation of the circuit breaker.

[0038] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the knowledge scope of those skilled in the art without departing from the concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-voltage common-phase circuit breaker mechanism module, comprising a box (1), wherein a spring operating mechanism is arranged inside the box, the back of the box is connected to a mounting plate (2), and the mounting plate (2) is connected to three crank arm boxes (3) arranged in a horizontal array; It is characterized in that A connecting rod mechanism (4) is connected between the spring operating mechanism and the crank box (3) and is used to be connected to a switch element of a circuit breaker; The connecting rod mechanism (4) comprises a first connecting rod (41) driven by a spring operating mechanism to perform telescopic movement, and a second connecting rod (43) and a third connecting rod (45) which are collinear and arranged alternately with the first connecting rod (41); The other end of the first connecting rod (41) is connected to the main crank arm (42), and the main crank arm (42) is vertically rotatably connected to the middle crank arm box (3); the main crank arm (42) includes a driving crank arm (421) and a driven crank arm (422) which are coaxially and staggeredly arranged up and down, wherein the driving crank arm (421) is hinged to the first connecting rod (41), and the driven crank arm (422) is coaxially hinged to the opposite ends of the second connecting rod (43) and the third connecting rod (45); the other two crank arm boxes (3) are respectively rotatably connected to the side crank arms (44) arranged in an array with the driven crank arm (422), and the side crank arms are respectively hinged to the other ends of the second connecting rod (43) and the third connecting rod (45); The lower ends of the driven crank arm (422) and the two side phase crank arms (44) are coaxially connected to the output crank arm (46) for driving the switch element of the circuit breaker to operate.

2. The mechanism module according to claim 1, characterized in that: The angle between the axial projections of the main crank arm (42) and the driven crank arm (422) is in the range of 50°-70°, and the main crank arm (42) is located on a side close to the box body (1), while the driven crank arm (422) is located on a side away from the box body (1).

3. The mechanism module according to claim 1, characterized in that: The second connecting rod (43) and the third connecting rod (45) are of equal length.

4. The mechanism module according to claim 1, characterized in that: The lengths of the driven crank arm (422) and the side crank arm (44) are 12-18 mm.

5. The mechanism module according to any one of claims 1 to 4, characterized in that: The main crank arm (42) and the side crank arm (44) are rotatably connected to the crank arm box (3) via a crank arm shaft (47); the lower portion of the crank arm shaft (47) is vertically rotatably connected to the crank arm box (3) via a bearing; the main crank arm (42) and the side crank arm (44) are located above the outer side of the crank arm box (3); and the output crank arm (46) is connected to the lower portion of the crank arm shaft (47) and is located inside the wall-mounted box.

6. The mechanism module according to claim 5, characterized in that: A connecting plate (48) is provided on the top of the crank arm shaft (47), one end of the connecting plate (48) is fixedly connected to the box body (1), and the other end is fixedly connected to the crank arm box (3), and a cover plate (49) is provided above the connecting plate (48).

7. The mechanism module according to claim 6, characterized in that: The crank arm shaft (47) is a spline shaft, and shaft seals are provided at the upper and lower ends. The upper end of the shaft seal is connected to the cover plate (49) and the bottom of the lower shaft seal is connected to the end cover.

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