Simple testing device for small rotary rectifying disc of excitation generator

Abstract

The utility model discloses a simple testing device for a small-sized rotary rectifying disc of an excitation generator, which comprises a base and a rotary rectifying disc, and an electric control box is fixedly connected to the upper wall of the base and close to the rear wall of the base. According to the utility model, the rotary rectifying disc is positioned and mounted at the front end of the rotating shaft through the fixed disc and the positioning pin, and then the electric telescopic rod extends out through the extension shaft to drive the two groups of movable pressing blocks to extrude the pressing plate, so that the pressing plate and the rotary rectifying disc are extruded towards the front wall of the fixed disc, thereby forming a pressing and fixing effect; the rotary rectifying disc is very simple to mount and dismount during testing, the pressing and fixing position is not loosened during switching of different rotating speeds and different rotating directions, the testing efficiency and the testing safety are effectively improved, the protective cover is arranged on the base, the protective door capable of being rotatably opened is arranged at the front end of the protective cover, and in the testing process, the protective door is not prone to being opened. And the rotating part is shielded through the protective cover and the protective door, so that the safety protection effect is achieved, and the safety of the testing device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating rectifier disks, in particular to a simple test device for a small rotating rectifier disk of an excitation generator. Background Technique

[0002] The main function of the rotating rectifier disk is to control the opening of the starting circuit during the asynchronous start and re-synchronization of the electrode, connect the starting extinction resistance to the rotor circuit of the motor, so that the motor has a completely symmetric asynchronous driving torque.

[0003] The existing rotating rectifier disk test equipment on the market has a complex structure, a large scale, high environmental requirements and inconvenient operation. In order to meet the market effect, its function is single, resulting in a high price. In order to improve the test efficiency and meet the purpose of testing small rotating rectifier disks of different specifications at different speeds, a simple test device for a small rotating rectifier disk of an excitation generator is provided. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a simple test device for a small rotating rectifier disk of an excitation generator is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a simple test device for a small rotating rectifier disk of an excitation generator, including a base and a rotating rectifier disk. A control box is fixedly connected to the upper wall of the base and close to the rear wall. A control panel is arranged on the upper wall of the control box. A transformer and a load end are arranged on the upper wall of the base and distributed left and right in front of the control box. A driving motor is fixedly connected between the transformer and the load end through a motor fixing seat. The driving motor extension shaft is located at the end of the driving motor away from the control box. The end of the driving motor extension shaft is fixedly connected to a rotating shaft through a coupling. A chassis is fixedly connected to the upper wall of the base and in front of the driving motor. A supporting structure for supporting the rotating shaft is arranged on the upper wall of the chassis. The outer wall of the end of the rotating shaft away from the driving motor is detachably connected to a fixing disk for installing the rotating rectifier disk. A plurality of positioning pins are arranged on the front wall of the fixing disk. A plurality of positioning through holes adapted to the positioning pins are arranged on the inner wall of the rotating rectifier disk. An installation hole is arranged on the inner wall of the end of the rotating shaft away from the driving motor. A sliding block is slidably connected to the inner side wall of the installation hole. A driving structure for driving the sliding block to move back and forth is arranged between the sliding block and the inner rear wall of the installation hole. A pressing structure for pressing the rotating rectifier disk towards the fixing disk is arranged between the end of the rotating shaft away from the driving motor and the sliding block. A power supply structure for supplying power during rotation is arranged on the outer wall of the rotating shaft between the supporting structure and the fixing disk. A protective cover is fixedly connected to the upper wall of the base and around the rotating shaft. The front end of the protective cover is rotatably connected to a protective door through a hinge.

[0006] As a further description of the above technical solution:

[0007] Four groups of rollers for facilitating movement are provided on the lower wall of the base. Two of the four groups of rollers are directional wheels, and the other two of the four groups of rollers are universal wheels with brakes.

[0008] As a further description of the above technical solution:

[0009] The support structure includes two bearing seats. The two bearing seats are fixedly connected to the upper wall of the chassis in sequence in the front-back distribution. The rotating shaft is rotatably connected to the upper wall of the chassis through the two bearing seats.

[0010] As a further description of the above technical solution:

[0011] The driving structure is an electric telescopic rod. The electric telescopic rod is fixedly connected to the inner wall of the mounting hole and is located behind the slider. The end of the extending shaft of the electric telescopic rod is fixedly connected to the slider.

[0012] As a further description of the above technical solution:

[0013] The pressing structure includes a pressing plate, two connecting blocks, two movable pressing blocks and two linkage arms. The two connecting blocks are fixedly connected to the end of the rotating shaft far from the driving motor in a left-right distribution. A chute is formed between the opposite sides of the two connecting blocks. The two movable pressing blocks are respectively rotatably connected to the inner wall of the chute through a rotating pin, and the two movable pressing blocks are symmetrically distributed up and down with the extension line of the axis of the rotating shaft as the center. The two ends of the movable pressing block in the length direction are respectively a large head and a small head. The rotating pin is located near the small head end of the movable pressing block. The two linkage arms are rotatably connected to the front wall of the slider in an up-down distribution. The ends of the two linkage arms far from the slider are respectively rotatably connected to the small head ends of a movable pressing block. The pressing plate is sleeved on the outer walls of the two connecting blocks and is located between the rotating rectifying disk and the movable pressing block.

[0014] As a further description of the above technical solution:

[0015] The power supply structure includes a fixed slip ring and a movable slip ring. The fixed slip ring and the movable slip ring are both sleeved on the outer wall of the rotating shaft and are both located between the support structure and the fixed disk. The fixed slip ring is fixedly connected to the front wall of the chassis through a fixed bracket. The movable slip ring is rotatably connected to the front wall of the fixed slip ring and the movable slip ring is fixedly connected to the outer wall of the rotating shaft.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, for this simple test device for the small rotating rectifier disk of the excitation generator, the rotating rectifier disk is positioned and installed at the front end of the rotating shaft through the fixed disk and the positioning pin. Then, the extending shaft of the electric telescopic rod extends out, driving two groups of movable pressing blocks to squeeze the pressing plate, and squeezing the pressing plate and the rotating rectifier disk towards the front wall of the fixed disk, thereby forming a pressing and fixing effect. The installation and disassembly of the rotating rectifier disk during testing are very simple, and the pressing and fixing position will not become loose when switching between different speeds and different rotation directions, effectively improving the test efficiency and test safety.

[0018] 2. Compared with the prior art, for this simple test device for the small rotating rectifier disk of the excitation generator, a protective cover is provided on the base, and a rotatable and openable protective door is provided at the front end of the protective cover. During the test process, the rotating parts are shielded by the protective cover and the protective door, playing a safety protection role and greatly enhancing the safety of the test device. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of a simple test device for the small rotating rectifier disk of an excitation generator proposed by the present utility model;

[0020] Figure 2 is the partial side schematic diagram of the connection structure of the base, drive motor, rotating shaft, chassis, bearing seat, fixed slip ring, movable slip ring and fixed disk of a simple test device for the small rotating rectifier disk of an excitation generator proposed by the present utility model;

[0021] Figure 3 is a Figure 2 partial enlarged view of part A in a simple test device for the small rotating rectifier disk of an excitation generator proposed by the present utility model;

[0022] Figure 4 is the partial side cross-sectional view of the connection structure of the rotating shaft, fixed disk, connecting block, movable pressing block, slider and electric telescopic rod of a simple test device for the small rotating rectifier disk of an excitation generator proposed by the present utility model;

[0023] Figure 5 is the front schematic diagram of the connection structure between the rotating shaft and two groups of connecting blocks of a simple test device for the small rotating rectifier disk of an excitation generator proposed by the present utility model.

[0024] Legend Explanation:

[0025] 1. Base; 2. Roller; 3. Electric control box; 4. Control panel; 5. Transformer; 6. Load terminal; 7. Driving motor; 8. Protective cover; 9. Protective door; 10. Underframe; 11. Bearing seat; 12. Rotating shaft; 13. Coupling; 14. Fixed frame; 15. Fixed slip ring; 16. Movable slip ring; 17. Fixed disk; 18. Positioning pin; 19. Pressing plate; 20. Connecting block; 21. Rotating pin; 22. Movable pressing block; 23. Linkage arm; 24. Mounting hole; 25. Electric telescopic rod; 26. Slide block. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Referring to Figures 1 to 5 , a simple test device for a small rotating rectifier disk of an excitation generator provided by the present invention includes a base 1 and a rotating rectifier disk. An electric control box 3 is fixedly connected to the upper wall of the base 1 and near the rear wall position. A control panel 4 is arranged on the upper wall of the electric control box 3. A transformer 5 and a load terminal 6 are arranged on the upper wall of the base 1 and distributed left and right in sequence on the front side of the electric control box 3. Four groups of rollers 2 for facilitating movement are arranged on the lower wall of the base 1. Two of the four groups of rollers 2 are directional wheels, and the other two of the four groups of rollers 2 are universal wheels with brakes. Arranging the four groups of rollers 2 can enable the test device to move conveniently and avoid the problem of inconvenient operation of the test device in the traditional technology;

[0028] In order to achieve the purpose of testing the rotating rectifier disk at different speeds, a driving motor 7 is fixedly connected to the upper wall of the base 1 and between the transformer 5 and the load terminal 6 through a motor fixing seat. The extending shaft of the driving motor 7 is located at the end of the driving motor 7 away from the electric control box 3. The end of the extending shaft of the driving motor 7 is fixedly connected to a rotating shaft 12 through a coupling 13. An underframe 10 is fixedly connected to the upper wall of the base 1 and on the front side of the driving motor 7. A supporting structure for supporting the rotating shaft 12 is arranged on the upper wall of the underframe 10. The supporting structure includes two bearing seats 11. The two bearing seats 11 are fixedly connected to the upper wall of the underframe 10 in sequence in the front and rear distribution. The rotating shaft 12 is rotatably connected to the upper wall of the underframe 10 through the two bearing seats 11. The rotation speed and rotation direction of the driving motor 7 can be controlled through the control panel 4, so as to drive the rotating rectifier disk located at the front end of the rotating shaft 12 to rotate, so as to achieve the purpose of testing at different speeds;

[0029] For the convenience of testing rotating rectifiers of different specifications and models, a fixing plate 17 for installing the rotating rectifier is detachably connected to the outer wall of the end of the rotating shaft 12 away from the driving motor 7. Multiple groups of positioning pins 18 are arranged on the front wall of the fixing plate 17, and multiple groups of positioning through holes adapted to the positioning pins 18 are arranged on the inner wall of the rotating rectifier. The fixing plate 17 is detachably connected to the rotating shaft 12. There can be multiple groups of fixing plates 17, which are correspondingly set according to the sizes of rotating rectifiers of different models. When testing rotating rectifiers of different specifications, just install the corresponding model of the fixing plate 17;

[0030] To achieve the purpose of driving the slider 26 to move back and forth, an installation hole 24 is provided in the inner wall of the end of the rotating shaft 12 away from the driving motor 7. A slider 26 is slidably connected to the inner side wall of the installation hole 24. A driving structure for driving the slider 26 to move back and forth is arranged between the slider 26 and the inner rear wall of the installation hole 24. The driving structure is an electric telescopic rod 25. The electric telescopic rod 25 is fixedly connected to the inner side wall of the installation hole 24 and is located behind the slider 26. The end of the extending shaft of the electric telescopic rod 25 is fixedly connected to the slider 26. When the extending shaft of the electric telescopic rod 25 extends, it drives the slider 26 to move forward. When the extending shaft of the electric telescopic rod 25 retracts, it drives the slider 26 to move backward;

[0031] For the purpose of achieving rapid clamping to improve the test efficiency, a pressing structure for pressing the rotating rectifier disk against the fixed disk 17 is provided between the end of the rotating shaft 12 far from the driving motor 7 and the slider 26. The pressing structure includes a pressing plate 19, two groups of connecting blocks 20, two groups of movable pressing blocks 22, and two groups of linkage arms 23. The two groups of connecting blocks 20 are distributed left and right and are fixedly connected to the end of the rotating shaft 12 far from the driving motor 7. A chute is formed between the opposite sides of the two groups of connecting blocks 20. The two groups of movable pressing blocks 22 are respectively rotatably connected to the inner side wall of the chute through a set of rotating pins 21, and the two groups of movable pressing blocks 22 are symmetrically distributed up and down with the extension line of the axis of the rotating shaft 12 as the center. The two ends of the movable pressing block 22 in the length direction are the large head and the small head respectively, and the rotating pin 21 is located near the small head end of the movable pressing block 22. The two groups of linkage arms 23 are distributed up and down and are sequentially rotatably connected to the front wall of the slider 26. The ends of the two groups of linkage arms 23 far from the slider 26 are respectively rotatably connected to the small head ends of a set of movable pressing blocks 22. The pressing plate 19 is sleeved on the outer walls of the two groups of connecting blocks 20 and is located between the rotating rectifier disk and the movable pressing block 22. After the rotating rectifier disk is sleeved on the front wall of the fixed disk 17, the pressing plate 19 is installed. The electric telescopic rod 25 is started. Through the extension of the extension shaft of the electric telescopic rod 25, the slider 26 is driven to move forward. During the forward movement of the slider 26, the two groups of movable pressing blocks 22 are driven by the two groups of linkage arms 23 to rotate along the axes of the two sets of rotating pins 21 until the ends of the two groups of movable pressing blocks 22 extending outside the chute abut against the front wall of the pressing plate 19. At this time, through the thrust of the extension shaft of the electric telescopic rod 25, a pressing force is formed for the movable pressing block 22 to press the pressing plate 19 and the rotating rectifier disk against the front wall of the fixed disk 17, thus forming a clamped and fixed state. When it is necessary to loosen, the extension shaft of the electric telescopic rod 25 retracts, which can drive the movable pressing block 22 to rotate in the reverse direction until the movable pressing block 22 retracts into the chute, that is, the pressing state of the pressing plate 19 is released. During the rotation test process, there is no need to worry about the loosening problem that is likely to occur in the traditional bolt fixing technology;

[0032] In order to achieve electrical connection during rotation, a power supply structure for power supply during rotation is provided between the outer wall of the rotating shaft 12 and between the support structure and the fixed disk 17. The power supply structure includes a fixed slip ring 15 and a movable slip ring 16. The fixed slip ring 15 and the movable slip ring 16 are both sleeved on the outer wall of the rotating shaft 12 and are both located between the support structure and the fixed disk 17. The fixed slip ring 15 is fixedly connected to the front wall of the chassis 10 through a fixed bracket 14. The movable slip ring 16 is rotatably connected to the front wall of the fixed slip ring 15 and is fixedly connected to the outer wall of the rotating shaft 12. The electrical connection during the rotation test is realized through the fixed slip ring 15 and the movable slip ring 16;

[0033] In order to improve the safety of the test, a protective cover 8 is fixedly connected to the upper wall of the base 1 and around the rotating shaft 12. The front end of the protective cover 8 is rotatably connected to a protective door 9 through a hinge. During the rotation test operation, the protective cover 8 and the protective door 9 can shield the rotating part, effectively improving the test safety.

[0034] Working principle: Setting four groups of rollers 2 enables the test device to move conveniently, avoiding the problem of inconvenient operation of the test device in the traditional technology. The rotation speed and rotation direction of the drive motor 7 can be controlled through the control panel 4, so as to drive the rotation rectifying disk located at the front end of the rotating shaft 12 to rotate, so as to achieve the purpose of testing at different rotation speeds. The fixed disk 17 is detachably connected to the rotating shaft 12. Multiple groups of fixed disks 17 can be set, which are correspondingly set according to the sizes of different types of rotation rectifying disks. When it is necessary to test rotation rectifying disks of different specifications, just install the corresponding type of fixed disk 17. The end of the extending shaft of the electric telescopic rod 25 is fixedly connected to the slider 26. When the extending shaft of the electric telescopic rod 25 extends, it drives the slider 26 to move forward. When the extending shaft of the electric telescopic rod 25 retracts, it drives the slider 26 to move backward. After the rotation rectifying disk is sleeved on the front wall of the fixed disk 17, then install the pressure plate 19. Start the electric telescopic rod 25. When the extending shaft of the electric telescopic rod 25 extends, it drives the slider 26 to move forward. During the forward movement of the slider 26, two groups of linkage arms 23 drive two groups of movable pressing blocks 22 to rotate along the axes of two groups of rotating pins 21 until the ends of the two groups of movable pressing blocks 22 extending outside the chute abut against the front wall of the pressure plate 19. At this time, through the thrust of the extending shaft of the electric telescopic rod 25, the movable pressing blocks 22 form a pressing force that presses the pressure plate 19 and the rotation rectifying disk towards the front wall of the fixed disk 17, thus forming a clamped and fixed state. When it is necessary to loosen, just retract the extending shaft of the electric telescopic rod 25 to drive the movable pressing blocks 22 to rotate in the reverse direction until the movable pressing blocks 22 retract into the chute, that is, the pressing state on the pressure plate 19 is released. During the rotation test process, there is no need to worry about the loosening problem that easily occurs in bolt fixation in the traditional technology. The electrical connection during the rotation test is realized through the fixed slip ring 15 and the movable slip ring 16. During the rotation test operation, the protective cover 8 and the protective door 9 can shield the rotating part, effectively improving the test safety.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A simple test device for a small rotating rectifier disk of an excitation generator, characterized in that: It includes a base (1) and a rotating rectifier disc. On the upper wall of the base (1) and near the rear wall, an electric control box (3) is fixedly connected. On the upper wall of the electric control box (3), a control panel (4) is arranged. On the upper wall of the base (1) and on the front side of the electric control box (3), a transformer (5) and a load terminal (6) are arranged in a left-right distribution in sequence. On the upper wall of the base (1) and between the transformer (5) and the load terminal (6), a driving motor (7) is fixedly connected through a motor fixing seat. The protruding shaft of the driving motor (7) is located at one end of the driving motor (7) far from the electric control box (3). The end of the protruding shaft of the driving motor (7) is fixedly connected to a rotating shaft (12) through a coupling (13). On the upper wall of the base (1) and on the front side of the driving motor (7), a chassis (10) is fixedly connected. On the upper wall of the chassis (10), a supporting structure for supporting the rotating shaft (12) is arranged. The outer wall of the end of the rotating shaft (12) far from the driving motor (7) is detachably connected to a fixing disc (17) for installing the rotating rectifier disc. On the front wall of the fixing disc (17), a plurality of positioning pins (18) are arranged. On the inner wall of the rotating rectifier disc, a plurality of positioning through holes adapted to the positioning pins (18) are arranged. On the inner wall of the end of the rotating shaft (12) far from the driving motor (7), an installation hole (24) is arranged. A slider (26) is slidably connected to the inner side wall of the installation hole (24). Between the slider (26) and the inner rear wall of the installation hole (24), a driving structure for driving the slider (26) to move back and forth is arranged. Between the end of the rotating shaft (12) far from the driving motor (7) and the slider (26), a pressing structure for pressing the rotating rectifier disc towards the fixing disc (17) is arranged. On the outer wall of the rotating shaft (12) and between the supporting structure and the fixing disc (17), a power supply structure for power supply during rotation is arranged. On the upper wall of the base (1) and around the rotating shaft (12), a protective cover (8) is fixedly connected. The front end of the protective cover (8) is rotatably connected to a protective door (9) through a hinge.

2. The simple test device for a small rotating rectifier disk of an exciting generator according to claim 1, characterized in that: Four sets of rollers (2) for facilitating movement are arranged on the lower wall of the base (1). Two of the four sets of rollers (2) are directional wheels, and the other two of the four sets of rollers (2) are brake universal wheels.

3. The simple test device for a small rotating rectifier disk of an exciting generator according to claim 1, characterized in that: The supporting structure includes two bearing seats (11). The two bearing seats (11) are fixedly connected to the upper wall of the chassis (10) in a front-rear distribution in sequence. The rotating shaft (12) is rotatably connected to the upper wall of the chassis (10) through the two bearing seats (11).

4. A simple test device for a small rotating rectifier disk of an excitation generator according to claim 1, characterized in that: The driving structure is an electric telescopic rod (25). The electric telescopic rod (25) is fixedly connected to the inner side wall of the installation hole (24) and behind the slider (26). The end of the protruding shaft of the electric telescopic rod (25) is fixedly connected to the slider (26).

5. A simple test device for a small rotating rectifier disk of an excitation generator according to claim 1, characterized in that: The pressing structure includes a pressing plate (19), two groups of connecting blocks (20), two groups of movable pressing blocks (22), and two groups of linkage arms (23). The two groups of connecting blocks (20) are distributed left and right and are fixedly connected to the end of the rotating shaft (12) far from the driving motor (7). A chute is formed between the opposite sides of the two groups of connecting blocks (20). The two groups of movable pressing blocks (22) are respectively rotatably connected to the inner side wall of the chute through a set of rotating pins (21), and the two groups of movable pressing blocks (22) are symmetrically distributed up and down with the extension line of the axis of the rotating shaft (12) as the center. The two ends of the movable pressing block (22) in the length direction are a large head and a small head respectively. The rotating pin (21) is located near the small head end of the movable pressing block (22). The two groups of linkage arms (23) are distributed up and down and are sequentially rotatably connected to the front wall of the slider (26). The ends of the two groups of linkage arms (23) far from the slider (26) are respectively rotatably connected to the small head ends of a group of movable pressing blocks (22). The pressing plate (19) is sleeved on the outer walls of the two groups of connecting blocks (20) and is located between the rotating rectifier disk and the movable pressing block (22).

6. The simple test device for a small rotating rectifier disk of an excitation generator according to claim 1, wherein: The power supply structure includes a fixed slip ring (15) and a movable slip ring (16). The fixed slip ring (15) and the movable slip ring (16) are both sleeved on the outer wall of the rotating shaft (12) and are both located between the support structure and the fixed disk (17). The fixed slip ring (15) is fixedly connected to the front wall of the bottom frame (10) through a fixed frame (14). The movable slip ring (16) is rotatably connected to the front wall of the fixed slip ring (15) and is fixedly connected to the outer wall of the rotating shaft (12).

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