Blade type rotary rectifying element

Abstract

The utility model discloses a blade type rotary rectifying element which comprises a shell, a boss is arranged on the inner bottom face of the shell, the top face of the boss abuts against a rectifying piece, internal threads are arranged on an upper opening of the inner wall of the shell in a tapping mode, an external thread pipe connected with the internal threads is arranged in the shell and abuts against the rectifying piece, and a cover plate is movably sleeved outside the rectifying piece in the axial direction. The cover plate abuts against the top face of the shell, the top face of the cover plate is movably connected with two abutting blocks in mirror symmetry, the two abutting blocks jointly abut against a rotating ring, a nut is rotationally connected into the rotating ring, and the rectifying part is sleeved with the nut in a threaded mode. According to the utility model, the firmness of the connection among the cover plate, the nut and the shell is guaranteed, the phenomenon that the nut falls off from an electrode bar due to vibration generated when equipment runs at a high speed is avoided, and the stability of the equipment during running is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifier elements, in particular to a blade type rotating rectifier element. Background Art

[0002] The rotating rectifier element is mainly used in the rotating rectifier circuit of the synchronous generator exciter. When the existing rotating rectifier element is used, the flat rectifier tube is fixed to the radiator with multiple bolts and clamps, and then the assembly is installed on the motor rotor. Since multiple bolts are used to fix the flat rectifier tube during installation, when the motor rotates at high speed, the connection of the multiple bolts is prone to loosening, thereby affecting the stability of the motor operation. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a blade type rotating rectifying element.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a blade-type rotating rectifier element, comprising a shell, the inner bottom surface of the shell is provided with a boss, the top surface of the boss abuts the rectifier, the inner wall upper opening of the shell is tapped with an internal thread, an external threaded tube connected to the internal thread is provided in the shell, the external threaded tube abuts the rectifier, the outer axial movably sleeved with a cover plate, the cover plate abuts the top surface of the shell, the top surface of the cover plate is movably connected to two mirror-symmetrical blocks, the two blocks abut against a swivel together, a nut is rotatably connected inside the swivel, and the nut is threadedly sleeved on the outside of the rectifier.

[0005] As a further description of the above technical solution: the rectifier includes a gasket abutting the top surface of the boss, the top surface of the gasket concentrically fixes the electrode rod, the outside of the electrode rod is sleeved with an insulating sleeve, the insulating sleeve abuts the top surface of the gasket, the outside of the insulating sleeve is sleeved with multiple axially stacked disc springs, the top surface of the uppermost disc spring abuts a pressure ring, the pressure ring is sleeved on the outside of the insulating sleeve, the bottom surface of the externally threaded tube abuts the top surface of the pressure ring, and a filler is provided between the externally threaded tube and the cover plate, the cover plate is axially slidably sleeved on the outside of the electrode rod, and the nut is threadedly sleeved on the outside of the electrode rod.

[0006] As a further description of the above technical solution: the outside of the electrode rod is provided with an external thread at one end adapted to the nut, and the outside of the nut is provided with an annular groove, a support ring is rotatably connected in the annular groove, and the support ring is fixedly sleeved in the swivel.

[0007] As a further description of the above technical solution: a slide groove is opened on the top surface of the cover plate, a spring is horizontally fixed in the slide groove, the end of the spring is fixedly connected to a slider, the slider is slidably connected in the slide groove, and the slider is fixed on the bottom surface of the stop block.

[0008] As a further description of the above technical solution: a plurality of equidistant annular positioning grooves are axially opened on the top surface of the shell, a positioning pin is axially inserted in each of the positioning grooves, each of the positioning pins is vertically fixed to the bottom surface of the cover plate, two radially symmetrical blind holes are radially opened on the outside of the rotating ring, a pin is axially inserted in each of the blind holes, and a pin is horizontally fixed on the inner side of each of the blocks.

[0009] As a further description of the above technical solution: the shell is made of metal, an annular groove is provided on the outside of the shell, a heat-conducting sleeve is sleeved in the annular groove, a plurality of heat-dissipating holes are radially penetrated on the outside of the heat-conducting sleeve at equal distances, and the cover plate and the nut are both made of insulating materials.

[0010] The utility model has the following beneficial effects:

[0011] 1. Compared with the prior art, the blade-type rotating rectifier element uses the internal thread and external thread tube in the shell to abut the rectifier in the shell, and flexibly connects two abutting blocks with pins on the inner side on the cover plate, and rotatably connects a swivel matched with the abutting blocks and the pins on the outside of the bolt, thereby ensuring the firmness of the connection between the cover plate, the nut and the shell, avoiding the vibration generated when the equipment is running at high speed, causing the nut to fall off the electrode rod, thereby ensuring the stability of the equipment during operation;

[0012] 2. Compared with the prior art, the heat generated by the rectifier in the shell of the blade-type rotating rectifier element during operation will be conducted to the metal shell, and then the metal shell will transfer the absorbed heat to the heat-conducting sleeve. After the heat-conducting sleeve absorbs the heat from the shell, the heat is dissipated through the heat dissipation holes, so as to avoid the temperature generated by the rectifier during operation being unable to be dissipated, resulting in excessive internal temperature, overload operation of the equipment, and failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the overall structure of the blade-type rotating rectifier element proposed by the utility model;

[0014] Figure 2 The blade type rotating rectifier element proposed by the utility model Figure 1 A magnified view of the structure at center A;

[0015] Figure 3 The blade type rotating rectifier element proposed by the utility model Figure 1A magnified view of the structure at point B.

[0016] Legend:

[0017] 1. Shell; 2. Annular groove; 3. Heat-conducting sleeve; 4. Heat dissipation hole; 5. Cover plate; 6. Positioning pin; 7. Stop block; 8. Nut; 9. Positioning groove; 10. Internal thread; 11. Filler; 12. External thread pipe; 13. Pressing ring; 14. Disc spring; 15. Boss; 16. Gasket; 17. Insulating sleeve; 18. Annular groove; 19. Support ring; 20. Swivel; 21. Blind hole; 22. Pin; 23. Spring; 24. Slide groove; 25. Slider; 100. Electrode rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figures 1 to 3 The utility model provides a blade type rotating rectifier element: comprising a shell 1, a boss 15 is provided on the inner bottom surface of the shell 1, the top surface of the boss 15 abuts against the rectifier, an inner thread 10 is tapped on the inner wall of the shell 1, an external threaded tube 12 connected to the internal thread 10 is provided in the shell 1, the external threaded tube 12 abuts against the rectifier, a cover plate 5 is axially movably sleeved on the outer axial surface of the rectifier, the cover plate 5 abuts on the top surface of the shell 1, the top surface of the cover plate 5 is movably connected to two mirror-symmetrical abutting blocks 7, a rotating ring 20 is commonly abutted between the two abutting blocks 7, a nut 8 is rotatably connected in the rotating ring 20, and the nut 8 is threadedly sleeved on the rectifier On the outside of the component, a slide groove 24 is provided on the top surface of the cover plate 5, a spring 23 is fixed horizontally in the slide groove 24, a slider 25 is fixedly connected to the end of the spring 23, the slider 25 is slidably connected in the slide groove 24, the slider 25 is fixed to the bottom surface of the stop block 7, a plurality of equidistant annular positioning grooves 9 are axially provided on the top surface of the housing 1, a positioning pin 6 is axially inserted in each positioning groove 9, and each positioning pin 6 is vertically fixed to the bottom surface of the cover plate 5, two radially symmetrical blind holes 21 are radially provided on the outside of the swivel 20, a pin 22 is axially inserted in each blind hole 21, and a pin 22 is horizontally fixed on the inner side of each stop block 7;

[0020] The rectifying member comprises a gasket 16 abutting against the top surface of the boss 15, the top surface of the gasket 16 concentrically fixes the electrode rod 100, the outside of the electrode rod 100 is sleeved with an insulating sleeve 17, the insulating sleeve 17 abuts against the top surface of the gasket 16, the outside of the insulating sleeve 17 is sleeved with a plurality of axially stacked disc springs 14, the top surface of the uppermost disc spring 14 abuts against a pressure ring 13, the pressure ring 13 is sleeved on the outside of the insulating sleeve 17, the bottom surface of the externally threaded tube 12 abuts against the top surface of the pressure ring 13, and a filler 11 is provided between the externally threaded tube 12 and the cover plate 5, the cover plate 5 is axially slidably sleeved on the outside of the electrode rod 100, the nut 8 is threadedly sleeved on the outside of the electrode rod 100, the outside of the electrode rod 100 is provided with an external thread with one end adapted to the nut 8, the outside of the nut 8 is provided with an annular groove 18, the annular groove 18 is rotatably connected to a support ring 19, and the support ring 19 is fixedly sleeved in a rotating ring 20;

[0021] By utilizing the internal thread 10 and the external threaded tube 12 in the housing 1, the rectifier is abutted against the housing 1, and two abutting blocks 7 with pins 22 on the inner sides are movably connected to the cover plate 5, and a swivel 20 adapted to the abutting blocks 7 and the pins 22 is rotatably connected to the outside of the bolt, thereby ensuring the firmness of the connection between the cover plate 5, the nut 8 and the housing 1, avoiding the vibration generated when the equipment is running at high speed, causing the nut 8 to fall off the electrode rod 100, thereby ensuring the stability of the equipment during operation;

[0022] Reference Figures 1 to 3 In order to achieve the purpose of heat dissipation of the rectifier in the shell 1, the shell 1 is made of metal, and an annular groove 2 is provided on the outside of the shell 1. A heat-conducting sleeve 3 is sleeved in the annular groove 2. A plurality of heat-dissipating holes 4 distributed at equal distances are radially penetrated on the outside of the heat-conducting sleeve 3. The cover plate 5 and the nut 8 are both made of insulating materials. The heat generated by the rectifier in the shell 1 during operation will be conducted to the metal shell 1, and then the metal shell 1 will transfer the absorbed heat to the heat-conducting sleeve 3. After absorbing the heat on the shell 1, the heat-conducting sleeve 3 will dissipate the heat through the heat-dissipating holes 4, so as to avoid the temperature generated by the rectifier during operation from being unable to be dissipated, resulting in excessive internal temperature, overload operation of the equipment, and failure.

[0023] Working principle: When in use, firstly, the gasket 16 at the bottom of the electrode rod 100 is abutted against the boss 15 in the shell 1, and then the insulating sleeve 17 is put on the outside of the electrode rod 100, and the bottom surface of the insulating sleeve 17 is abutted against the top surface of the gasket 16, then a plurality of disc springs 14 are stacked together and are sleeved on the outside of the insulating sleeve 17, and then the pressure ring 13 is sleeved on the outside of the insulating sleeve 17, and the pressure ring 13 will abut against the uppermost disc spring 14, and then the external thread is passed through the internal thread 10 in the shell 1 and rotated into the shell 1, and the external threaded tube 12 will be sleeved on the outside of the electrode rod 100 until the bottom surface of the external threaded tube 12 abuts against the top surface of the pressure ring 13, and at the same time, the plurality of disc springs 14 are flattened, and the plurality of disc springs 14 firmly press the gasket 16 on the boss 15, thereby fixing the electrode rod 100 in the shell 1, and then the cover plate 5 is sleeved on the outside of the motor rod, and at the same time, the latch on the bottom surface of the cover plate 5 is Align the positioning groove 9 on the top surface of the shell 1 for docking, then sleeve the nut 8 on the outside of the early electrode rod 100, and then rotate the nut 8 so that the nut 8 is axially lowered under the action of the external thread of the electrode rod 100, and the bottom surface of the nut 8 abuts against the top surface of the cover plate 5. When rotating the nut 8, the two abutting blocks 7 are simultaneously moved for reverse displacement to increase the distance between the two abutting blocks 7, and the spring 23 is compressed at the same time. When the nut 8 abuts against the top surface of the cover plate 5, the two abutting blocks 7 are released, and the spring 23 in the compressed state is properly reset, and the appropriate pin 22 abuts against the outside of the swivel 20. Then rotate the swivel 20, and the two blind holes 21 on the outside of the appropriate swivel 20 are respectively aligned with the two pins 22. At this time, the spring 23 will be finally reset. While performing the final reset, the spring 23 pushes the two pins 22 into the two blind holes 21 respectively, thereby limiting the axial displacement of the nut 8.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blade-type rotating rectifying element, comprising a housing (1), characterized in that: The inner bottom surface of the shell (1) is provided with a boss (15), the top surface of the boss (15) abuts against the rectifying part, the upper opening of the inner wall of the shell (1) is tapped with an internal thread (10), an external threaded tube (12) connected to the internal thread (10) is provided inside the shell (1), the external threaded tube (12) abuts against the rectifying part, the outer part of the rectifying part is axially movably sleeved with a cover plate (5), the cover plate (5) abuts against the top surface of the shell (1), the top surface of the cover plate (5) is movably connected to two mirror-symmetrical abutting blocks (7), the two abutting blocks (7) are commonly abutted against a rotating ring (20), a nut (8) is rotatably connected inside the rotating ring (20), and the nut (8) is threadedly sleeved on the outside of the rectifying part.

2. The blade type rotating rectifying element according to claim 1, characterized in that: The rectifying component comprises a gasket (16) abutting against the top surface of the boss (15), the top surface of the gasket (16) concentrically fixing the electrode rod (100), an insulating sleeve (17) being sleeved on the outside of the electrode rod (100), the insulating sleeve (17) abutting against the top surface of the gasket (16), a plurality of axially stacked disc springs (14) being sleeved on the outside of the insulating sleeve (17), the top surface of the uppermost disc spring (14) abutting against a pressure ring (13), the pressure ring (13) being sleeved on the outside of the insulating sleeve (17), the bottom surface of the externally threaded tube (12) abutting against the top surface of the pressure ring (13), a filler (11) being provided between the externally threaded tube (12) and the cover plate (5), the cover plate (5) being axially slidably sleeved on the outside of the electrode rod (100), and the nut (8) being threadedly sleeved on the outside of the electrode rod (100).

3. The blade type rotating rectifying element according to claim 2, characterized in that: The electrode rod (100) is provided with an external thread at one end adapted to the nut (8) on the outside, and an annular groove (18) is provided on the outside of the nut (8). A support ring (19) is rotatably connected in the annular groove (18), and the support ring (19) is fixedly sleeved in the rotating ring (20).

4. The blade type rotating rectifying element according to claim 1, characterized in that: A slide groove (24) is provided on the top surface of the cover plate (5), a spring (23) is horizontally fixed in the slide groove (24), the end of the spring (23) is fixedly connected to a slider (25), the slider (25) is slidably connected in the slide groove (24), and the slider (25) is fixed to the bottom surface of the stop block (7).

5. The blade type rotating rectifying element according to claim 1, characterized in that: The top surface of the shell (1) is axially provided with a plurality of equidistant annular positioning grooves (9), each of which is axially inserted with a positioning pin (6), and each of which is vertically fixed to the bottom surface of the cover plate (5). The outer surface of the rotating ring (20) is radially provided with two radially symmetrical blind holes (21), each of which is axially inserted with a pin (22), and each of which is horizontally fixed with a pin (22) on the inner side of each of the stop blocks (7).

6. The blade type rotating rectifying element according to claim 1, characterized in that: The shell (1) is made of metal, an annular groove (2) is provided on the outside of the shell (1), a heat-conducting sleeve (3) is sleeved in the annular groove (2), a plurality of heat-dissipating holes (4) distributed at equal distances radially penetrate the outside of the heat-conducting sleeve (3), and the cover plate (5) and the nut (8) are both made of insulating materials.

Images