Simulation debugging tool for propulsion mechanism of circuit breaker

Abstract

The utility model discloses a simulation debugging tool for a circuit breaker propulsion mechanism, which belongs to the technical field of debugging tools and comprises a working bedplate on which a circuit breaker handcart to be simulated and debugged is placed, a handcart fixing mechanism used for fixing a front end frame plate of the circuit breaker handcart, and a counting driving mechanism used for driving a screw rod in the circuit breaker handcart to rotate, and the synchronous displacement part is used for detecting the displacement condition of the movable trolley body in the circuit breaker handcart. The technical key points are as follows: the counting driving mechanism drives the circuit breaker handcart to move at a constant speed and synchronously drives the synchronous displacement piece to move, and when the circuit breaker handcart is pushed to the maximum stroke, the synchronous displacement piece can reflect the pushing distance of the circuit breaker handcart, so that a worker can conveniently adjust the circuit breaker handcart, namely the pushing mechanism, according to the pushing distance; therefore, the propelling distance exactly meets the design requirement, that is, after complete propelling, the circuit breaker can be aligned and connected with an external structure.

Description

Technical Field

[0001] The utility model relates to the technical field of debugging tooling, in particular to a simulation debugging tooling for a circuit breaker propulsion mechanism. Background Art

[0002] The main function of the circuit breaker propulsion mechanism is to move the circuit breaker to the predetermined working position through mechanical operation, thereby ensuring the reliable connection or disconnection of the circuit. It is usually connected to the operating handle or electric operating mechanism of the circuit breaker to achieve remote or local control. The trolley part of the trolley circuit breaker is a common circuit breaker propulsion mechanism. The circuit breaker trolley is lifted or pushed by the manual handle to change its relative position with the base in the fixed position. The trolley body is a frame structure, usually made of strong material, used to carry and support the circuit breaker. The trolley body is designed with rollers or slide rails to facilitate movement in the circuit breaker room (refer to Figure 6 ).

[0003] The utility model with announcement number CN220305460U relates to a circuit breaker propulsion mechanism simulation debugging tool, including a tool frame, a positioning bracket, a support seat and a support plate. A standard guide rail is installed on the support plate. A slope support block is provided at the lower part of the standard guide rail. A slope adjustment bolt is provided at the lower end of the slope support block. The positioning bracket includes a positioning bent plate, an adjustment plate and a baffle. The positioning bent plate is arranged on the upper part of the adjustment plate to limit the position of the adjustment plate. The baffle connects the adjustment plate to the positioning bracket through screws. The circuit breaker propulsion mechanism simulation debugging tool described in the utility model debugs the propulsion mechanism before the propulsion mechanism cooperates with the circuit breaker debugging, thereby reducing assembly errors and ensuring assembly efficiency and assembly quality.

[0004] However, the above-mentioned tooling is unable to test the advancement distance of the advancement mechanism during debugging, resulting in a lack of reference basis for adjusting the advancement distance. As a result, there may be a situation where the circuit breaker is misaligned with the external structure after full advancement. At the same time, it is impossible to test whether the screw rod in the advancement mechanism has relative sliding during rotation, and thus it is impossible to test whether there is wear inside the advancement mechanism. Therefore, to address the above problems, a circuit breaker advancement mechanism simulation debugging tooling is proposed. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a simulation debugging tool for a circuit breaker propulsion mechanism, which can drive the circuit breaker trolley to advance at a uniform speed by a counting drive mechanism, and synchronously drive the synchronous displacement part to move. When it is advanced to the maximum stroke, the synchronous displacement part can reflect the advancement distance of the circuit breaker trolley, so that the staff can adjust the circuit breaker trolley, that is, the propulsion mechanism, according to the advancement distance, so that its advancement distance just meets the design requirements, that is, after full advancement, the circuit breaker can be aligned and connected with the external structure. In addition, the counting drive mechanism can record the number of rotations of the screw rod, and the corresponding advancement distance for each rotation of the screw rod should be a constant value. Therefore, by comparing the number of rotations with the advancement distance reflected by the synchronous displacement part, it can be judged whether there is a relatively obvious relative sliding during the screw rod transmission, resulting in an obvious mismatch between the number of rotations and the advancement distance. This solves the technical problems in the prior art that the advancement distance of the propulsion mechanism cannot be tested, resulting in a lack of reference basis for the debugging work, and it is impossible to test whether there is wear inside the propulsion mechanism.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A circuit breaker propulsion mechanism simulation debugging tool comprises a workbench, on which a circuit breaker trolley to be simulated and debugged is placed, the circuit breaker trolley comprising a front frame and a movable body, the movable body being driven by a screw, a trolley fixing mechanism arranged at the front end of the workbench, for fixing the front frame of the circuit breaker trolley, a counting drive mechanism, for driving the screw in the circuit breaker trolley to rotate, simulate the propulsion condition thereof, and measure the number of screw rotations, and a synchronous displacement member, for detecting the displacement of the movable body in the circuit breaker trolley, wherein scale lines corresponding to the position of the synchronous displacement member are provided on both sides of the workbench.

[0008] Through the above-mentioned structural form, the counting drive mechanism drives the circuit breaker trolley to advance at a uniform speed, synchronously driving the synchronous displacement member to move. When the trolley is advanced to the maximum stroke, the synchronous displacement member can reflect the advancement distance of the circuit breaker trolley, so that the staff can adjust the circuit breaker trolley, that is, the advancement mechanism, according to the advancement distance so that its advancement distance just meets the design requirements. That is, after full advancement, the circuit breaker can be aligned and connected with the external structure. In addition, the counting drive mechanism can record the number of rotations of the screw rod, and the advancement distance corresponding to each rotation of the screw rod should be a constant value. Therefore, by comparing the number of rotations with the advancement distance reflected by the synchronous displacement member, it can be determined whether there is a relatively obvious relative sliding during the screw rod transmission, resulting in an obvious mismatch between the number of rotations and the advancement distance.

[0009] In a possible implementation, the trolley fixing mechanism includes an L-shaped frame plate, a fixed threaded rod is threadedly connected to the L-shaped frame plate, and a pressure plate is rotatably connected to the bottom end of the fixed threaded rod.

[0010] With the above structure, when the fixed threaded rod is screwed, its bottom end moves up and down, thereby driving the pressure plate to move up and down, thereby fixing the circuit breaker trolley, making it less likely to deviate during movement.

[0011] In one possible implementation, the counting drive mechanism includes a vertical mounting plate, a transmission shaft is rotatably mounted between the vertical mounting plate and the L-shaped frame plate via a rotating connector, and the end of the transmission shaft is connected to a hexagonal connector for driving the circuit breaker trolley screw to rotate.

[0012] Through the above structure, the transmission shaft is connected to the circuit breaker trolley screw rod through the hexagonal connector, so when the transmission shaft rotates, the circuit breaker trolley screw rod can be driven to rotate synchronously to perform the push test.

[0013] In a possible implementation, a driven wheel is sleeved on the middle of the transmission shaft, a driving motor is fixedly installed on the workbench, the output shaft of the driving motor is fixedly connected to the driving wheel, and the driven wheel and the driving wheel are connected via a transmission belt.

[0014] With the above-mentioned structural form, when the driving motor is working, it can drive the driving wheel to rotate, and drive the driven wheel to rotate through the transmission belt, thereby realizing the rotation of the driving transmission shaft.

[0015] In a possible implementation, a mounting folding plate is fixedly provided on the back side of the vertical mounting plate, a rotary encoder is fixedly mounted on the mounting folding plate, and a shaft end of the rotary encoder is fixedly connected to the end of the transmission shaft.

[0016] Through the above-mentioned structural form, when the transmission shaft rotates, it can drive the shaft of the rotary encoder to rotate synchronously, so that the number of rotations of the transmission shaft can be detected by the rotary encoder. Subsequently, the theoretical value of the advancement distance can be calculated according to the parameters of the circuit breaker trolley screw rod. By comparing the theoretical value with the actual measured value, it can be determined whether there is obvious relative sliding of the circuit breaker trolley screw rod during the transmission process.

[0017] In one possible implementation, the synchronous displacement member includes a slide rail, on which a slider is slidably provided, a displacement pointer pointing to the scale line is fixedly provided at the bottom of the slider, and a slide rod connecting block is fixedly provided on the slider, and a slide rod with an end fixedly connected to a suction cup is slidably provided in the slide rod connecting block, and the suction cup is used to be adsorbed and fixed on the side of the circuit breaker trolley body.

[0018] With the above-mentioned structure, when the circuit breaker trolley is pushed forward, the suction cup is fixed to the side of the circuit breaker trolley body, thereby being able to synchronously drive the slider to slide along the slide rail. When the slider slides, the actual number of the scale line corresponding to the displacement pointer on it will also change, thereby being able to know the actual pushed distance of the circuit breaker trolley.

[0019] In a possible implementation, an operating handwheel is fixedly connected to the top end of the fixed threaded rod, and guide rods are fixedly connected to both sides of the pressure plate, and the guide rods are slidably connected to the L-shaped frame plate.

[0020] With the above-mentioned structural form, the provided operating hand wheel can facilitate the user to screw the fixed threaded rod, while the provision of the guide rod can prevent the pressing plate from rotating during the up and down movement.

[0021] In a possible implementation, the rotating connection member includes a connecting shell and a bearing, wherein the outer ring of the bearing is fixedly connected to the connecting shell, and the inner ring of the bearing is fixedly connected to the transmission shaft.

[0022] Through the above-mentioned structural form, a fixed connection between the transmission shaft and the L-shaped frame plate and the vertical mounting plate can be achieved.

[0023] In summary, the present invention has the following beneficial technical effects:

[0024] The counting drive mechanism drives the circuit breaker trolley to advance at a uniform speed, which in turn drives the synchronous displacement member to move. When the trolley reaches the maximum stroke, the synchronous displacement member can reflect the advancement distance of the circuit breaker trolley, so that the staff can adjust the circuit breaker trolley, that is, the advancement mechanism, according to the advancement distance so that the advancement distance just meets the design requirements. That is, after full advancement, the circuit breaker can be aligned and connected with the external structure.

[0025] In addition, the counting drive mechanism can record the number of rotations of the screw, and the corresponding advancement distance for each rotation of the screw should be a constant value. Therefore, by comparing the number of rotations with the advancement distance reflected by the synchronous displacement part, it can be determined whether there is a relatively obvious relative sliding during the screw transmission, resulting in an obvious mismatch between the number of rotations and the advancement distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of the utility model in working state;

[0028] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the fixing and driving structure of the utility model;

[0030] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0031] Figure 5This is a schematic diagram of the structure of the synchronous displacement member of the utility model;

[0032] Figure 6 This is a schematic diagram of the existing circuit breaker trolley structure.

[0033] In the figure: 1. Workbench; 2. Circuit breaker trolley; 21. Screw; 3. Trolley fixing mechanism; 31. L-shaped frame; 32. Fixed threaded rod; 33. Pressure plate; 34. Guide rod; 35. Operating handwheel; 4. Counting drive mechanism; 41. Vertical mounting plate; 42. Rotating connector; 421. Connecting cylinder shell; 422. Bearing; 43. Transmission shaft; 431. Hexagon socket connector; 44. Driven pulley; 45. Drive motor; 46. Driving pulley; 47. Transmission belt; 48. Mounting folding plate; 49. Rotary encoder; 5. Synchronous displacement member; 51. Slide rail; 52. Slider; 53. Displacement pointer; 54. Slide rod connecting block; 55. Sliding rod; 56. Suction cup; 6. Scale line. DETAILED DESCRIPTION

[0034] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0035] like Figure 1 - Figure 2 As shown, the present embodiment provides a circuit breaker propulsion mechanism simulation debugging tool, including a workbench 1, on which a circuit breaker trolley 2 to be simulated and debugged is placed. The circuit breaker trolley 2 includes a front frame and a movable body, and the movable body is driven by a screw 21. A trolley fixing mechanism 3 is provided at the front end of the workbench 1 to fix the front frame of the circuit breaker trolley 2. A counting drive mechanism 4 is used to drive the screw 21 in the circuit breaker trolley 2 to rotate, simulate its propulsion working condition, and measure the number of rotations of the screw 21. A synchronous displacement member 5 is used to detect the circuit breaker. The displacement of the movable body of the trolley 2 is measured. Scale lines 6 corresponding to the position of the synchronous displacement member 5 are provided on both sides of the worktable 1. Through this structural form, the counting drive mechanism 4 drives the circuit breaker trolley 2 at a uniform speed, synchronously driving the synchronous displacement member 5. When the trolley reaches its maximum travel, the synchronous displacement member 5 reflects the distance the trolley 2 has advanced. This allows the operator to adjust the trolley 2, i.e., the propulsion mechanism, based on the distance, so that the distance exactly meets the design requirements. That is, after full advancement, the circuit breaker can be aligned and connected to the external structure.

[0036] The specific structure of the circuit breaker trolley 2 can be referred to Figure 6 It is an existing mature technology and is often set at the bottom of the circuit breaker to facilitate the staff to push or pull out the circuit breaker and complete the corresponding work. The most common combination form is the trolley type circuit breaker.

[0037] In addition, the counting drive mechanism 4 can record the number of rotations of the screw rod 21, and the corresponding advancement distance for each rotation of the screw rod 21 should be a constant value. Therefore, by comparing the number of rotations with the advancement distance reflected by the synchronous displacement member 5, it can be determined whether there is a relatively obvious relative sliding during the transmission of the screw rod 21, resulting in an obvious mismatch between the number of rotations and the advancement distance.

[0038] like Figure 3 - Figure 4 As shown, the trolley fixing mechanism 3 includes an L-shaped frame plate 31, on which a fixed threaded rod 32 is threadedly connected. The bottom end of the fixed threaded rod 32 is rotatably connected to a pressure plate 33. Through the above structure, when the fixed threaded rod 32 is screwed, its bottom end will move up and down, thereby driving the pressure plate 33 to move up and down, thereby fixing the circuit breaker trolley 2 and preventing it from deviating during movement.

[0039] In addition, an operating handwheel 35 is fixedly connected to the top of the fixed threaded rod 32, and guide rods 34 are fixedly connected on both sides of the pressure plate 33. The guide rods 34 are slidingly connected to the L-shaped frame plate 31. Through the above-mentioned structural form, the operating handwheel 35 can facilitate the user to twist the fixed threaded rod 32, and the setting of the guide rod 34 can prevent the pressure plate 33 from rotating during the up and down movement.

[0040] like Figure 3 - Figure 4 As shown, the counting drive mechanism 4 includes a vertical mounting plate 41, and a transmission shaft 43 is rotatably mounted between the vertical mounting plate 41 and the L-shaped frame plate 31 through a rotating connector 42. The end of the transmission shaft 43 is connected to a hexagonal connector 431 for driving the screw rod 21 of the circuit breaker trolley 2 to rotate. Through the above-mentioned structural form, the transmission shaft 43 is connected to the screw rod 21 of the circuit breaker trolley 2 through the hexagonal connector 431. When the transmission shaft 43 rotates, it can synchronously drive the screw rod 21 of the circuit breaker trolley 2 to rotate to perform the push test.

[0041] In addition, a driven wheel 44 is sleeved on the middle part of the transmission shaft 43, and a driving motor 45 is fixedly installed on the worktable 1, whose output shaft is fixedly connected to the driving wheel 46, and the driven wheel 44 and the driving wheel 46 are connected by a transmission belt 47. Through the above-mentioned structural form, when the driving motor 45 is working, it can drive the driving wheel 46 to rotate, and drive the driven wheel 44 to rotate through the transmission belt 47, thereby realizing the rotation of the driving shaft 43.

[0042] like Figure 3As shown, a mounting folding plate 48 is fixedly provided on the back of the vertical mounting plate 41, and a rotary encoder 49 is fixedly installed on the mounting folding plate 48. The shaft end of the rotary encoder 49 is fixedly connected to the end of the transmission shaft 43. Through the above-mentioned structural form, when the transmission shaft 43 rotates, it can drive the shaft of the rotary encoder 49 to rotate synchronously, so that the number of rotations of the transmission shaft 43 can be detected by the rotary encoder 49. Subsequently, the theoretical value of the advancement distance can be calculated according to the parameters of the screw rod 21 of the circuit breaker trolley 2. By comparing the theoretical value with the actual measured value, it can be determined whether there is obvious relative sliding of the screw rod 21 of the circuit breaker trolley 2 during the transmission process.

[0043] like Figure 5 As shown, the synchronous displacement member 5 includes a slide rail 51, on which a slider 52 is slidably provided, and a displacement pointer 53 pointing to the scale line 6 is fixedly provided at the bottom of the slider 52, and a slide rod connecting block 54 is fixedly provided on the slider 52. A sliding rod 55 with an end fixedly connected to a suction cup 56 is slidably provided in the slide rod connecting block 54, and the suction cup 56 is used to be adsorbed and fixed on the side of the body of the circuit breaker trolley 2. Through the above structure, when the circuit breaker trolley 2 is pushed forward, since the suction cup 56 is adsorbed and fixed on the side of the body of the circuit breaker trolley 2, it can synchronously drive the slider 52 to slide along the slide rail 51. When the slider 52 slides, the actual number of the scale line 6 corresponding to the displacement pointer 53 thereon will also change, thereby knowing the actual pushed distance of the circuit breaker trolley 2.

[0044] like Figure 4 As shown, the rotating connecting member 42 includes a connecting cylindrical shell 421 and a bearing 422, wherein the outer ring of the bearing 422 is fixedly connected to the connecting cylindrical shell 421, and the inner ring of the bearing 422 is fixedly connected to the transmission shaft 43. Through the above-mentioned structural form, a fixed connection between the transmission shaft 43 and the L-shaped frame plate 31 and the vertical mounting plate 41 can be achieved.

[0045] The use principle and use process of this utility model:

[0046] The counting drive mechanism 4 drives the circuit breaker trolley 2 to advance at a constant speed, and synchronously drives the synchronous displacement member 5 to move. When the trolley is pushed to the maximum stroke, the synchronous displacement member 5 can reflect the advancement distance of the circuit breaker trolley 2, so that the staff can adjust the circuit breaker trolley 2, that is, the advancement mechanism, according to the advancement distance so that its advancement distance just meets the design requirements. That is, after full advancement, the circuit breaker can be aligned and connected with the external structure.

[0047] The specific principle of the above process is that when the circuit breaker trolley 2 is pushed forward, since the suction cup 56 is fixed to the side of the circuit breaker trolley 2, it can synchronously drive the slider 52 to slide along the slide rail 51. When the slider 52 slides, the real number of the scale line 6 corresponding to the displacement pointer 53 on it will also change, thereby knowing the actual pushed distance of the circuit breaker trolley 2.

[0048] In addition, the counting drive mechanism 4 can record the number of rotations of the screw rod 21, and the corresponding advancement distance for each rotation of the screw rod 21 should be a constant value. Therefore, by comparing the number of rotations with the advancement distance reflected by the synchronous displacement member 5, it can be determined whether there is a relatively obvious relative sliding during the transmission of the screw rod 21, resulting in an obvious mismatch between the number of rotations and the advancement distance. Specifically, when the transmission shaft 43 rotates, it can drive the shaft of the rotary encoder 49 to rotate synchronously, so that the number of rotations of the transmission shaft 43 can be detected by the rotary encoder 49, and then the theoretical value of the advancement distance can be calculated according to the parameters of the screw rod 21 of the circuit breaker trolley 2. By comparing the theoretical value with the actual measured value, it can be determined whether there is obvious relative sliding of the screw rod 21 of the circuit breaker trolley 2 during the transmission process.

[0049] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A circuit breaker propulsion mechanism simulation debugging tool, characterized in that: include: A workbench (1) is placed on which a circuit breaker trolley (2) to be simulated debugged is placed. The circuit breaker trolley (2) includes a front frame and a movable body, and the movable body is driven by a screw rod (21); A trolley fixing mechanism (3) is provided at the front end of the workbench (1) and is used to fix the front end frame of the circuit breaker trolley (2); A counting drive mechanism (4) is used to drive the screw rod (21) in the circuit breaker trolley (2) to rotate, simulate the propulsion working condition thereof, and measure the number of rotations of the screw rod (21); A synchronous displacement member (5) for detecting the displacement of a movable body in a circuit breaker trolley (2); Wherein, scale lines (6) corresponding to the positions of the synchronous displacement members (5) are provided on both sides of the workbench (1).

2. The circuit breaker propulsion mechanism simulation debugging tool according to claim 1, characterized in that: The trolley fixing mechanism (3) comprises an L-shaped frame plate (31), a fixed threaded rod (32) is threadedly connected to the L-shaped frame plate (31), and a pressing plate (33) is rotatably connected to the bottom end of the fixed threaded rod (32).

3. The circuit breaker propulsion mechanism simulation debugging tool according to claim 2, characterized in that: The counting drive mechanism (4) comprises a vertical mounting plate (41), a transmission shaft (43) being rotatably mounted between the vertical mounting plate (41) and the L-shaped frame plate (31) via a rotating connector (42), and an inner hexagonal connector (431) for driving the screw rod (21) of the circuit breaker trolley (2) to rotate being connected to the end of the transmission shaft (43).

4. The circuit breaker propulsion mechanism simulation debugging tool according to claim 3, characterized in that: A driven wheel (44) is sleeved on the middle part of the transmission shaft (43), a driving motor (45) is fixedly mounted on the workbench (1), an output shaft of the driving motor (45) is fixedly connected to a driving wheel (46), and the driven wheel (44) and the driving wheel (46) are connected to each other through a transmission belt (47).

5. The circuit breaker propulsion mechanism simulation debugging tool according to claim 3, characterized in that: A mounting folding plate (48) is fixedly provided on the back of the vertical mounting plate (41), a rotary encoder (49) is fixedly installed on the mounting folding plate (48), and the shaft end of the rotary encoder (49) is fixedly connected to the end of the transmission shaft (43).

6. The circuit breaker propulsion mechanism simulation debugging tool according to claim 1, characterized in that: The synchronous displacement member (5) comprises a slide rail (51) on which a slider (52) is slidably arranged, a displacement pointer (53) pointing to the scale line (6) is fixedly arranged at the bottom of the slider (52), and a slide rod connecting block (54) is fixedly arranged on the slider (52), and a slide rod (55) with an end fixedly connected to a suction cup (56) is slidably arranged in the slide rod connecting block (54), and the suction cup (56) is used for adsorption and fixation on the side of the circuit breaker trolley (2) body.

7. The circuit breaker propulsion mechanism simulation debugging tool according to claim 2, characterized in that: The top of the fixed threaded rod (32) is fixedly connected to an operating hand wheel (35), and both sides of the pressing plate (33) are fixedly connected to guide rods (34), which are slidably connected to the L-shaped frame plate (31).

8. The circuit breaker propulsion mechanism simulation debugging tool according to claim 3, characterized in that: The rotating connecting member (42) includes a connecting cylindrical shell (421) and a bearing (422), wherein the outer ring of the bearing (422) is fixedly connected to the connecting cylindrical shell (421), and the inner ring of the bearing (422) is fixedly connected to the transmission shaft (43).

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