Special tool for positioning the drive shaft of the circuit breaker mechanism

Abstract

The present invention discloses a special positioning tool for the transmission shaft of a circuit breaker mechanism, which includes a positioning plate, an L-shaped plate I, an L-shaped plate II, a displacement sensor I, a displacement sensor II, an angle encoder I, an angle encoder II and a display controller; the L-shaped plate II is connected to one side of the notch of the positioning plate; the rotating shaft of the angle encoder I passes through the side surface of the L-shaped plate I and is fixed to the bottom surface of the L-shaped plate I; the displacement sensor I is located outside the positioning plate; the fixed end of the displacement sensor II is connected to the rotating shaft of the angle encoder II; the display controller is electrically connected to the angle encoder I and the angle encoder II respectively; the display controller is electrically connected to the displacement sensor I and the displacement sensor II. The present invention can accurately position the transmission shaft of the circuit breaker and measure its offset distance, so as to quickly install and adjust the circuit breaker mechanism of the transmission system, a special positioning tool for the transmission shaft of the circuit breaker mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and specifically relates to a special tool for positioning the transmission shaft of a circuit breaker mechanism. Background Art

[0002] In a circuit breaker mechanism, whether the transmission shaft is correctly installed directly affects whether the mechanism transmission is normal, which affects the opening and closing speed of the circuit breaker and the contact stroke. During the disassembly and installation process, due to the presence of many key teeth on the transmission shaft, if each tooth is installed incorrectly, the transmission angle deviation will be relatively large. Summary of the Invention

[0003] The purpose of the present invention is to propose a special tool for positioning the transmission shaft of a Siemens circuit breaker mechanism, which can position the transmission shaft of the circuit breaker, measure its offset distance, facilitate the rapid installation and adjustment of the transmission mechanism, and provide further research on the angle deviation of the transmission mechanism.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A special tool for positioning the transmission shaft of a circuit breaker mechanism, including a positioning plate, an L-shaped plate I, an L-shaped plate II, a displacement sensor I, a displacement sensor II, an angle encoder I, an angle encoder II, and a display controller; two positioning holes are provided on the positioning plate; a notch is provided on one side of the positioning plate;

[0006] The L-shaped plate I is connected to the lower right of the positioning plate; the L-shaped plate II is connected to one side of the notch of the positioning plate;

[0007] The rotating shaft of the angle encoder I passes through the side surface of the L-shaped plate I and is fixed to the bottom surface of the L-shaped plate I; the rotating shaft of the angle encoder II passes through the side surface of the L-shaped plate II and is fixed to the bottom surface of the L-shaped plate II;

[0008] The fixed end of the displacement sensor I is connected to the rotating shaft of the angle encoder I; the displacement sensor I is located outside the positioning plate; the fixed end of the displacement sensor II is connected to the rotating shaft of the angle encoder II; the displacement sensor II is located within the notch of the positioning plate;

[0009] The display controller is electrically connected to the angle encoder I and the angle encoder II respectively; the display controller is electrically connected to the displacement sensor I and the displacement sensor II respectively.

[0010] Further, both the displacement sensor I and the displacement sensor II are articulated linear displacement sensors. The articulated linear displacement sensor has a compact structure, a long measuring stroke, a small installation space size, and high-precision measurement. The stroke ranges from 200 mm to 2000 mm, and it has an analog current of 4 to 20 mA, an analog voltage of 0 to 5 V or 0 to 10 V, and digital outputs of pulse A, B, and Z phases, meeting various signal requirements for large strokes and high precision.

[0011] Further, the display controller includes a controller, a display control screen, a high-speed pulse input terminal, and a power input port; the controller is installed inside the display controller; the display control screen and the high-speed pulse input terminal are both installed on the top surface of the display controller; the power input port is installed on the side surface of the display controller; the controller is electrically connected to the display control screen and the high-speed pulse input terminal respectively; the power input port is electrically connected to the controller and the display control screen respectively.

[0012] Further, the controller adopts a PLC control system.

[0013] A working method of a special tool for positioning the transmission shaft of a circuit breaker mechanism:

[0014] Power on the display controller, fix the two positioning holes on the positioning plate to the special holes on the side of the circuit breaker with screws. Rotate the displacement sensor I through the rotating shaft of the angle encoder I on the L-shaped plate I to be parallel to the positioning plate and shrink the central axis of the displacement sensor I to the shortest. Similarly, rotate the displacement sensor II through the rotating shaft of the angle encoder II on the L-shaped plate II to be parallel to the positioning plate and shrink the central axis of the displacement sensor II to the shortest. Set this position as the starting position on the display controller. Connect the movable end of the central axis of the displacement sensor I to the opening of the closing buffer of the transmission shaft of the circuit breaker mechanism, and connect the movable end of the central axis of the displacement sensor II to the opening of the pole column connecting rod of the transmission shaft of the circuit breaker mechanism. Manually rotate the transmission shaft to rotate the rotating shafts of the angle encoder I and the angle encoder II. The signal pulses are transmitted to the display controller through the internal processing units of the angle encoder I and the angle encoder II, and the program algorithm of the display controller converts the pulse signals into intuitive data angles for display; the displacement sensors I and II convert the telescopic lengths of the movable ends into pulse signals, and the display controller converts the pulse signals into intuitive data for display. If there is a deviation according to the comparison of the original installation data, manually adjust the transmission shaft to conveniently complete the positioning installation of the transmission shaft.

[0015] The technical solution of the present invention has the following beneficial effects:

[0016] 1. By using displacement sensors and angle encoders in the present invention, the subtle variables of the transmission shaft can be measured, improving the installation accuracy.

[0017] 2. The present invention uses a hinged linear displacement sensor. The hinged linear displacement sensor has a compact structure, a long measuring stroke, a small installation space size, and high-precision measurement. The stroke ranges from 200 mm to 2000 mm, and it has an analog current of 4 to 20 mA, an analog voltage of 0 to 5 V or 0 to 10 V, and digital outputs of pulse A, B, and Z phases, meeting various signal requirements for large strokes and high precision.

[0018] 3. The present invention uses a display controller to display the pulse signals converted from the variables of the displacement sensor and the angle encoder in the form of data, enabling an intuitive view of whether the transmission shaft is accurately installed and facilitating adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a top view structural schematic diagram of a special positioning tool for the transmission shaft of the circuit breaker mechanism of the present invention.

[0021] Figure 2 is a side view structural schematic diagram of a special positioning tool for the transmission shaft of the circuit breaker mechanism of the present invention.

[0022] Figure 3 is a front view structural schematic diagram of a special positioning tool for the transmission shaft of the circuit breaker mechanism of the present invention.

[0023] Reference numerals: 1 - positioning plate, 101 - positioning hole, 2 - L-shaped plate I, 21 - L-shaped plate II, 3 - displacement sensor I, 31 - displacement sensor II, 4 - angle encoder I, 41 - angle encoder II, 5 - display controller, 6 - display control screen, 7 - high-speed pulse input terminal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Embodiment

[0025] Figure 1 is a top view structural schematic diagram of a special positioning tool for the transmission shaft of the circuit breaker mechanism of the present invention,Figure 2 It is a schematic side view of a special positioning tool for the transmission shaft of the circuit breaker mechanism of the present invention. Figure 3 It is a schematic front view of a special positioning tool for the transmission shaft of the circuit breaker mechanism of the present invention. A special positioning tool for the transmission shaft of a circuit breaker mechanism includes a positioning plate 1, an L-shaped plate I 2, an L-shaped plate II 21, a displacement sensor I 3, a displacement sensor II 31, an angle encoder I 4, an angle encoder II 41, and a display controller 5; two positioning holes 101 are provided on the positioning plate 1; there is a notch on one side of the positioning plate 1.

[0026] The L-shaped plate I 2 is connected to the lower right of the positioning plate 1; the L-shaped plate II 21 is connected to one side of the notch of the positioning plate 1.

[0027] The rotating shaft of the angle encoder I 4 passes through the side surface of the L-shaped plate I 2 and is fixed to the bottom surface of the L-shaped plate I 2; the rotating shaft of the angle encoder II 41 passes through the side surface of the L-shaped plate II 21 and is fixed to the bottom surface of the L-shaped plate II 21.

[0028] The fixed end of the displacement sensor I 3 is connected to the rotating shaft of the angle encoder I 4; the displacement sensor I 3 is located outside the positioning plate 1; the fixed end of the displacement sensor II 31 is connected to the rotating shaft of the angle encoder II 41; the displacement sensor II 31 is located within the notch of the positioning plate 1.

[0029] The display controller 5 is electrically connected to the angle encoder I 4 and the angle encoder II 41 respectively; the display controller 5 is electrically connected to the displacement sensor I 3 and the displacement sensor II 31 respectively. Embodiment

[0030] The difference between this embodiment and Embodiment 1 is only that the displacement sensor I and the displacement sensor II are both articulated linear displacement sensors. Embodiment

[0031] The difference between this embodiment and Embodiment 2 is only that the display controller 5 includes a controller, a display control screen 6, a high-speed pulse input terminal 7, and a power input port; the controller is installed inside the display controller; the display control screen 6 and the high-speed pulse input terminal 7 are both installed on the top surface of the display controller 5; the power input port is installed on the side surface of the display controller 5; the controller is electrically connected to the display control screen 6 and the high-speed pulse input terminal 7 respectively; the power input port is electrically connected to the controller and the display control screen 6 respectively; the controller adopts a PLC control system.

[0032] Connect the power supply to the power input port of the display controller 5. Connect the movable end of the central axis of the articulated displacement sensor I 3 to the closing buffer connection port of the transmission shaft of the circuit breaker mechanism. Connect the movable end of the central axis of the articulated displacement sensor II 31 to the pole link connection port of the transmission shaft of the circuit breaker mechanism. The angle encoder I 4 and the articulated linear displacement sensor I 3 send the converted pulse signals through the high-speed pulse input terminal 7. The angle encoder II 41 and the articulated linear displacement sensor II 31 send the converted pulse signals through the high-speed pulse input terminal 7. The PLC control system receives the pulse signals, and the program algorithm of the PLC control system converts the pulse signals into intuitive data angles and displays them on the display control screen 6.

[0033] The usage method of the special positioning tool for the transmission shaft of the circuit breaker mechanism in the above embodiment:

[0034] Connect the power supply to the display controller 5. Fix the two positioning holes 101 on the positioning plate 1 to the special holes on the side of the circuit breaker with screws. Rotate the displacement sensor I 3 through the rotating shaft of the angle encoder I 4 on the L-shaped plate I 2 until it is perpendicular to the positioning plate 1 and contract the central axis of the displacement sensor I 3 to the shortest. Similarly, rotate the displacement sensor II 31 through the rotating shaft of the angle encoder II 41 on the L-shaped plate II 21 until it is parallel to the positioning plate 1 and contract the central axis of the displacement sensor II 31 to the shortest. Set this position as the starting position on the display controller 5. Connect the movable end of the central axis of the displacement sensor I 3 to the closing buffer connection port of the transmission shaft of the circuit breaker mechanism. Connect the movable end of the central axis of the displacement sensor II 31 to the pole link connection port of the transmission shaft of the circuit breaker mechanism. Manually rotate the transmission shaft to rotate the rotating shafts of the angle encoder I 4 and the angle encoder II 41. The internal processing units of the angle encoder I 4 and the angle encoder II 41 transmit the signal pulses to the display controller 5, and the program algorithm of the display controller 5 converts the pulse signals into intuitive data angles and displays them; the displacement sensors I 3 and II 31 convert the expansion and contraction lengths of the movable ends into pulse signals, and the display controller 5 converts the pulse signals into intuitive data and displays them. If there is a deviation according to the comparison with the original installation data, manually adjust the transmission shaft to conveniently complete the positioning and installation of the transmission shaft.

[0035] The technical solution of the present invention has the following beneficial effects:

[0036] 1. The present invention uses displacement sensors and angle encoders, which can measure the subtle variables of the transmission shaft and improve the installation accuracy.

[0037] 2. The present invention uses a hinged linear displacement sensor. The hinged linear displacement sensor has a compact structure, a long measuring stroke, a small installation space size, and high-precision measurement. The stroke ranges from 200 mm to 2000 mm, and it has an analog current of 4 to 20 mA, an analog voltage of 0 to 5 V or 0 to 10 V, and digital outputs of pulse A, B, and Z phases, meeting various signal requirements for large strokes and high precision.

[0038] 3. The present invention displays the pulse signals converted from the variables of the displacement sensor and the angle encoder in the form of data through a display controller, enabling one to intuitively see whether the transmission shaft is accurately installed and facilitating adjustment.

[0039] The above has introduced the embodiments of the present invention in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A special positioning tool for the drive shaft of a circuit breaker mechanism, characterized in that: It includes a positioning plate (1), an L-shaped plate I (2), an L-shaped plate II (21), a displacement sensor I (3), a displacement sensor II (31), an angle encoder I (4), an angle encoder II (41) and a display controller (5); two positioning holes (101) are provided on the positioning plate (1); there is a notch on one side of the positioning plate (1). The L-shaped plate I (2) is connected to the lower right of the positioning plate (1); the L-shaped plate II (21) is connected to one side of the notch of the positioning plate (1). The rotating shaft of the angle encoder I (4) passes through the side surface of the L-shaped plate I (2) and is fixed to the bottom surface of the L-shaped plate I (2); the rotating shaft of the angle encoder II (41) passes through the side surface of the L-shaped plate II (21) and is fixed to the bottom surface of the L-shaped plate II (21). The fixed end of the displacement sensor I (3) is connected to the rotating shaft of the angle encoder I (4); the displacement sensor I (3) is located outside the positioning plate (1); the fixed end of the displacement sensor II (31) is connected to the rotating shaft of the angle encoder II (41); the displacement sensor II (31) is located within the notch of the positioning plate (1). The display controller (5) is electrically connected to the angle encoder I (4) and the angle encoder II (41) respectively; the display controller (5) is electrically connected to the displacement sensor I (3) and the displacement sensor II (31) respectively. The working method of the special tool for positioning the transmission shaft of the circuit breaker mechanism is as follows: Power on the display controller (5). Fix the two positioning holes (101) on the positioning plate (1) to the special holes on the side of the circuit breaker with screws. Rotate the displacement sensor I (3) through the rotating shaft of the angle encoder I (4) on the L-shaped plate I (2) until it is parallel to the positioning plate (1) and shrink the central axis of the displacement sensor I (3) to the shortest. Similarly, rotate the displacement sensor II (31) through the rotating shaft of the angle encoder II (41) on the L-shaped plate II (21) until it is parallel to the positioning plate (1) and shrink the central axis of the displacement sensor II (31) to the shortest. Locate this position as the starting position on the display controller (5). Connect the movable end of the central axis of the displacement sensor I (3) to the closing buffer connection port of the circuit breaker mechanism drive shaft, and connect the movable end of the central axis of the displacement sensor II (31) to the pole link connection port of the circuit breaker mechanism drive shaft. Manually rotate the drive shaft to rotate the rotating shafts of the angle encoder I (4) and the angle encoder II (41). The internal processing units of the angle encoder I (4) and the angle encoder II (41) transmit signal pulses to the display controller (5), and the program algorithm of the display controller (5) converts the pulse signals into intuitive data angles for display. The displacement sensor I (3) and the displacement sensor II (31) convert the telescopic length of the movable end into pulse signals, and the display controller (5) converts the pulse signals into intuitive data for display. If there is a deviation compared with the original installation data, manually adjust the drive shaft to conveniently complete the positioning installation of the drive shaft.

2. The special positioning tool for the transmission shaft of the circuit breaker mechanism according to claim 1, characterized in that: Both the displacement sensor I (3) and the displacement sensor II (31) are articulated linear displacement sensors.

3. The positioning special tool for the transmission shaft of the circuit breaker mechanism according to claim 1, characterized in that: The display controller (5) includes a controller, a display control screen (6), a high-speed pulse input terminal (7), and a power input port. The controller is installed inside the display controller (5). The display control screen (6) and the high-speed pulse input terminal (7) are both installed on the top surface of the display controller (5). The power input port is installed on the side of the display controller (5). The controller is electrically connected to the display control screen (6) and the high-speed pulse input terminal (7) respectively. The power input port is electrically connected to the controller and the display control screen (6) respectively.

4. The special positioning tool for the transmission shaft of the circuit breaker mechanism according to claim 3, characterized in that: The controller adopts a PLC control system.

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