Intelligent gear and voltage adjusting device for transformer

Abstract

The utility model discloses an intelligent gear-shifting and voltage-regulating device for a transformer, which belongs to the related technical field of transformers and comprises a gear shifting device, a rotating head rotationally connected to the middle of the upper surface of the gear shifting device and a gear disc mounted on the outer side of the rotating head. A key groove is formed in the top of the rotating head, a fluted disc is installed above the key groove, a key hole corresponding to the key groove is formed in the middle of the fluted disc, and a pointer is integrally formed on the edge of the fluted disc. And the movable seat is matched with the guide column positioned on the inner side of the groove to slide by utilizing the elastic acting force of the spring, so that the top end of the gear shaping rod is always propped against the tooth groove part of the fluted disc, the clearance of the rotating head in the rotating process is avoided, the gear shifting precision is ensured, a worker does not need to get close to the transformer in the process, and the personal safety of the worker is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to transformers, and more specifically, to an intelligent gear and voltage regulating device for transformers. Background Art

[0002] Manually adjusting a transformer's voltage range is the most basic method, generally suitable for adjusting a single transformer. The specific steps are as follows: First, determine the voltage range to be adjusted and the target voltage range. Note that the target voltage range must not exceed the rated voltage of the transformer. Manually turn the selector switch to the desired voltage level. Turn the adjustment handle to adjust the transformer's voltage, and use an electric meter or motor to obtain the actual adjustment value. Once the adjustment is complete, turn the selector switch to the desired operating range.

[0003] An existing patent discloses a shift knob nest and a shift device, with patent authorization number CN208834962U, which includes a drive device connection part, a connection part and a shift device connection part; the connection part is connected between the drive device connection part and the shift device connection part; the drive device connection part includes at least two arc-shaped clamps, at least two sets of first adjustment bolts and nuts; one end of all the arc-shaped clamps is fixed to the connection part, and each arc-shaped clamp is provided with connection ears on both sides, and a gap is provided between adjacent connection ears; the first adjustment bolt and nut are respectively fixed on both sides of adjacent connection ears; the shift device connection part includes a square hole and at least two second adjustment bolts, which alleviates the technical problems of high workload of operators, large manpower required, and narrow adaptability of related tools in the process of on-load voltage regulation of transformers in the prior art.

[0004] However, the manual adjustment device used in the existing transformer requires workers to approach the transformer to adjust the gear position of the gear adjustment device, which can easily lead to manual danger during the gear adjustment process. Therefore, we propose an intelligent gear adjustment and voltage regulation device for transformers to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the utility model is to provide an intelligent gear shifting and voltage regulating device for transformers, which can realize the functions of automatic gear shifting and voltage regulation of the transformer, and use the elastic force of the spring to make the movable seat cooperate with the guide column located on the inner side of the groove to slide, so that the top end of the gear inserting rod is always in contact with the tooth groove part of the gear disk, avoiding the occurrence of false position of the rotating head during the rotation process, ensuring the accuracy of gear shifting, and no manual labor is required to approach the transformer during this process, thereby ensuring the personal safety of the manual labor.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] An intelligent gear and voltage regulating device for a transformer comprises a gear shifter, a rotary head rotatably connected to the middle of the upper surface of the gear shifter, and a gear plate installed outside the rotary head, wherein a key slot is provided on the top of the rotary head;

[0010] A toothed disc is installed above the keyway, a key hole corresponding to the keyway is opened in the middle of the toothed disc, and a pointer is integrally formed on the edge of the toothed disc;

[0011] A groove is provided between the rotating head and the gear plate, a guide post is fixedly connected to the inner side of the groove, a movable seat is slidably connected to the guide post and is fitted with a clearance in the groove, a spring is provided on the side of the movable seat away from the gear plate and is sleeved on the outer side of the guide post, and a gear inserting rod is connected to the upper surface of the movable seat and is in contact with the tooth groove of the gear plate;

[0012] A stepper motor is installed above the gear disc via a bracket, and a power output end of the stepper motor is transmission-connected to the rotating head.

[0013] Furthermore, an external threaded boss is fixedly connected to the edge of the upper surface of the gear selector, and an internal threaded sleeve is detachably connected to the external threaded boss.

[0014] Furthermore, a sealing rubber ring is embedded in the root of the external thread boss, and the sealing rubber ring abuts against the bottom wall of the bottom opening of the internal thread sleeve.

[0015] Furthermore, a threading hole is provided at the top end of the internally threaded sheath.

[0016] Furthermore, one end of the spring abuts against the movable seat, and the other end of the spring abuts against the end wall of the groove.

[0017] Furthermore, a convex key is fixedly connected to the output shaft of the stepper motor, and the output shaft of the stepper motor passes through the key hole and is plug-connected to the key slot.

[0018] Furthermore, the input end of the stepping motor is connected to a wire, and the wire passes through the wire threading hole.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) This solution drives the rotating head to rotate clockwise by controlling the power output end of the stepper motor, so that the pointer points to the high gear position of the gear disc, thereby increasing the voltage. When the transformer needs to downshift, the power output end of the stepper motor drives the rotating head to rotate counterclockwise, so that the pointer points to the low gear position of the gear disc, thereby reducing the voltage. In the process of synchronous rotation of the gear disc following the rotating head, the elastic force of the spring is used to make the movable seat slide with the guide column located on the inner side of the groove, so that the top of the gear rod is always in contact with the tooth groove of the gear disc, avoiding the occurrence of a void in the rotation of the rotating head, ensuring the accuracy of the gear adjustment, and no human being needs to approach the transformer during this process, thereby ensuring the personal safety of the human being.

[0022] (2) In this solution, the internal threaded sleeve is screwed together with the external threaded boss until the sealing rubber ring is embedded into the inner side of the bottom of the internal threaded sleeve, which plays a good protective and waterproof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the gear selector of the present utility model;

[0025] Figure 3 This is a schematic diagram of the toothed disc structure of the present utility model;

[0026] Figure 4 This is an enlarged schematic diagram of part A of the present utility model;

[0027] Figure 5 This is a schematic diagram of the rotating head structure of the utility model

[0028] Figure 6 This is a schematic diagram of the stepping motor structure of the present utility model;

[0029] Figure 7 This is a schematic diagram of the internal threaded sheath structure of the present utility model.

[0030] Description of the numbers in the figure:

[0031] 1. Shifter; 2. Rotating head; 3. Shift plate; 4. Keyway; 5. Tooth plate; 6. Keyhole; 7. Pointer; 8. Groove; 9. Guide post; 10. Movable seat; 11. Spring; 12. Gear rod; 13. Stepper motor; 14. Externally threaded boss; 15. Sealing rubber ring; 16. Internally threaded sheath; 17. Threading hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Example:

[0034] See also Figure 1-7 , an intelligent gear and voltage regulating device for a transformer, comprising a gear regulator 1, a rotary head 2 rotatably connected to the middle of the upper surface of the gear regulator 1, and a gear plate 3 installed outside the rotary head 2, wherein a key slot 4 is provided on the top of the rotary head 2;

[0035] A toothed disc 5 is installed above the keyway 4. A keyhole 6 corresponding to the keyway 4 is opened in the middle of the toothed disc 5. A pointer 7 is integrally formed on the edge of the toothed disc 5.

[0036] A groove 8 is provided between the rotating head 2 and the gear plate 3. A guide post 9 is fixedly connected to the inner side of the groove 8. A movable seat 10 is slidably connected to the guide post 9 and is loosely fitted with the groove 8. A spring 11 is provided on the side of the movable seat 10 away from the gear plate 5 and is sleeved on the outer side of the guide post 9. The upper surface of the movable seat 10 is connected to a gear rod 12 that abuts against the tooth groove of the gear plate 5.

[0037] A stepper motor 13 is mounted above the gear disc 5 via a bracket, and the power output end of the stepper motor 13 is transmission-connected to the rotating head 2;

[0038] It should be noted that when the intelligent gear shifting and voltage regulating device for transformers is in use, the gear shifter 1 is first installed on the transformer, and then the stepper motor 13 is connected to the background intelligent control system through a wire. When the transformer needs to shift up, the power output end of the stepper motor 13 is controlled to drive the rotating head 2 to rotate clockwise, so that the pointer 7 points to the high gear of the gear disk 3 to achieve voltage increase. When the transformer needs to shift down, the power output end of the stepper motor 13 is controlled to drive the rotating head 2 to rotate counterclockwise, so that the pointer 7 points to the low gear of the gear disk 3 to achieve voltage reduction. In the process of the gear disk 5 rotating synchronously with the rotating head 2, the elastic force of the spring 11 is utilized to make the movable seat 10 cooperate with the guide column 9 located on the inner side of the groove 8 to slide, so that the top end of the gear rod 12 is always in contact with the tooth groove part of the gear disk 5, avoiding the occurrence of a virtual position of the rotating head 2 during the rotation process, ensuring the accuracy of the gear shift, and no human being needs to approach the transformer during this process, thereby ensuring the personal safety of the human being.

[0039] like Figure 1 、 Figure 2 、 Figure 7As shown, the edge of the upper surface of the gear selector 1 is fixedly connected to an external threaded boss 14, and an internal threaded sleeve 16 is detachably connected to the external threaded boss 14. A sealing rubber ring 15 is embedded at the root of the external threaded boss 14, and the sealing rubber ring 15 abuts against the bottom wall of the bottom opening of the internal threaded sleeve 16;

[0040] It should be noted that the internal threaded sleeve 16 is screwed together with the external threaded boss 14 until the sealing rubber ring 15 is embedded into the inner side of the bottom opening of the internal threaded sleeve 16, which plays a good protective and waterproof role.

[0041] like Figure 1 、 Figure 2 As shown, a threading hole 17 is formed at the top of the internal threaded sheath 16, and a wire is connected to the input end of the stepping motor 13, and the wire passes through the threading hole 17;

[0042] It should be noted that the wire connected to the stepper motor 13 passes through the wire hole 17 to connect to the background intelligent control system, and the inner diameter of the wire hole 17 is adapted to the outer diameter of the wire.

[0043] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, one end of the spring 11 abuts against the movable seat 10, and the other end of the spring 11 abuts against the end wall of the groove 8. A convex key is fixedly connected to the output shaft of the stepping motor 13, and the output shaft of the stepping motor 13 passes through the key hole 6 and is plugged into the key slot 4.

[0044] It should be noted that, by utilizing the elastic force of the spring 11, the movable seat 10 cooperates with the guide column 9 located inside the groove 8 to slide, so that the top end of the gear rod 12 is always in contact with the tooth groove of the gear plate 5, avoiding the occurrence of a false position of the rotating head 2 during the rotation process, and ensuring the accuracy of the gear shifting.

[0045] During use: first install the gear selector 1 on the transformer, and then connect the stepper motor 13 to the background intelligent control system through a wire. When the transformer needs to shift up, the power output end of the stepper motor 13 is controlled to drive the rotating head 2 to rotate clockwise, so that the pointer 7 points to the high gear of the gear disk 3 to achieve voltage increase. When the transformer needs to shift down, the power output end of the stepper motor 13 is controlled to drive the rotating head 2 to rotate counterclockwise, so that the pointer 7 points to the low gear of the gear disk 3 to achieve voltage reduction. In the process of the gear disk 5 rotating synchronously with the rotating head 2, the elastic force of the spring 11 is used to make the movable seat 10 cooperate with the guide column 9 located on the inner side of the groove 8 to slide, so that the top end of the gear rod 12 is always in contact with the tooth groove part of the gear disk 5.

[0046] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An intelligent gear-shifting and voltage-regulating device for a transformer, comprising a gear shifter (1), a rotary head (2) rotatably connected to the middle of the upper surface of the gear shifter (1), and a gear plate (3) mounted on the outer side of the rotary head (2), characterized in that: A keyway (4) is provided on the top of the rotating head (2); A toothed disc (5) is installed above the keyway (4), a keyhole (6) corresponding to the keyway (4) is opened in the middle of the toothed disc (5), and a pointer (7) is integrally formed on the edge of the toothed disc (5); A groove (8) is provided between the rotating head (2) and the gear plate (3); a guide post (9) is fixedly connected to the inner side of the groove (8); a movable seat (10) is slidably connected to the guide post (9) and is clearance-matched with the groove (8); a spring (11) is provided on the outer side of the guide post (9) on the side of the movable seat (10) away from the gear plate (5); and a toothed rod (12) is connected to the upper surface of the movable seat (10) and is in contact with the tooth groove of the gear plate (5); A stepping motor (13) is mounted above the toothed disc (5) via a bracket, and a power output end of the stepping motor (13) is in transmission connection with the rotating head (2).

2. The intelligent gear-shifting and voltage-regulating device for transformers according to claim 1, characterized in that: An external thread boss (14) is fixedly connected to the edge of the upper surface of the gear selector (1), and an internal thread sleeve (16) is detachably connected to the external thread boss (14).

3. The intelligent gear-shifting and voltage-regulating device for transformers according to claim 2, characterized in that: A sealing rubber ring (15) is embedded at the root of the external thread boss (14), and the sealing rubber ring (15) abuts against the bottom wall of the bottom opening of the internal thread sleeve (16).

4. The intelligent gear-shifting and voltage-regulating device for transformers according to claim 3, characterized in that: A threading hole (17) is provided at the top end of the internal threaded sheath (16).

5. The intelligent gear-shifting and voltage-regulating device for transformers according to claim 1, characterized in that: One end of the spring (11) abuts against the movable seat (10), and the other end of the spring (11) abuts against the end wall of the groove (8).

6. The intelligent gear-shifting and voltage-regulating device for transformers according to claim 1, characterized in that: A convex key is fixedly connected to the output shaft of the stepping motor (13), and the output shaft of the stepping motor (13) passes through the key hole (6) and is plug-connected to the key slot (4).

7. The intelligent gear-shifting and voltage-regulating device for transformers according to claim 4, characterized in that: The input end of the stepping motor (13) is connected to a wire, and the wire passes through the threading hole (17).

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