Lightning arrester core winding device

Abstract

The utility model provides a lightning arrester core winding device which comprises a lightning arrester body and further comprises a bottom frame, chucks are symmetrically arranged on the bottom frame, and pressure detectors matched with the chucks are arranged on the bottom frame. The pre-pressing unit comprises a sleeve rotationally connected to the bottom frame, one end of the sleeve is matched with the chuck, the other end of the sleeve is in threaded connection with an ejector rod, and a second spring abutting against and pushing the chuck is arranged on the ejector rod. According to the lightning arrester core winding device provided by the utility model, the pre-pressing unit is utilized, the end covers of a lightning arrester body are clamped on the chucks, so that resistor discs are stacked and placed between the two end covers, the chucks apply pressure to the resistor discs under the pushing of the second spring by rotating the ejector rod, the extrusion numerical value is read by the pressure detector, and the winding of the lightning arrester core is completed. Therefore, the problem that the resistor disc is damaged due to overlarge pressure is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arrester production, in particular to a lightning arrester core winding device. Background Art

[0002] A lightning arrester is an electrical safety device used to protect power systems from lightning and switching overvoltages. During the arrester production process, winding the resistors is crucial for increasing their support strength. The resistors are stacked and placed between end caps, and clamped together using clamping blocks that push against the two end caps. Winding then begins. Because different resistors have varying compressive strengths, and the pressure applied by the clamping blocks is uncertain, the resistors can shift or excessive pressure can cause cracks and gaps on their surfaces, impacting the arrester's production quality. Utility Model Content

[0003] The purpose of this utility model is to solve the above problems in the existing technology, aiming to solve the problem that the pressure of the clamping block against the end cover on the resistor sheet cannot be determined, and the different specifications of the resistor sheets have different compressive strengths, which will lead to offset between the resistor sheets or cracks and gaps on the surface of the resistor sheet due to excessive pressure.

[0004] In order to achieve the above-mentioned purpose, the present invention can be implemented through the following technical solutions: A lightning arrester core winding device includes a lightning arrester body and further includes:

[0005] A base frame, on which a chuck is symmetrically arranged, and a pressure detector matched with the chuck is arranged on the base frame;

[0006] The prestressing unit includes a sleeve rotatably connected to the base frame, one end of the sleeve cooperates with the chuck, and the other end is threadedly connected to a push rod, and a second spring is provided on the push rod to push the chuck. The push rod rotates to push the chuck through the second spring to clamp the lightning arrester body to the base frame.

[0007] In an embodiment of the present utility model, the pressure detector is provided with a numerical meter fixed on the base frame.

[0008] In an embodiment of the present utility model, a winding unit is provided on one side of the base frame, and the winding unit includes a side plate fixed on the base frame, a screw and a guide rod are provided on the side plate in sequence, a slide is provided on the screw and the guide rod, a wire drum and a pulley are provided on the slide in sequence, and a wire is provided on the wire drum that fits the pulley and is wound around the arrester body.

[0009] In an embodiment of the present invention, a knife holder is slidably provided on the slide, a knife block for cutting the wire is provided on the knife holder, and a first spring is provided between the knife holder and the slide.

[0010] In an embodiment of the utility model, a driving unit is provided on one side of the base frame, and the driving unit includes a second synchronous wheel, a motor and a rotating shaft clamped on the output shaft of the motor, a first synchronous wheel is provided on the rotating shaft, a synchronous belt is provided between the first synchronous wheel and the second synchronous wheel, and the base frame includes a chuck that cooperates with the rotating shaft.

[0011] In the embodiment of the present utility model, a bearing matching with the sleeve is clamped on the base frame.

[0012] In an embodiment of the utility model, a slide plate is slidably provided on the base frame, and a pad that matches the arrester body is provided on the slide plate.

[0013] In an embodiment of the utility model, a triangular cone-shaped opening is provided on the cushion block.

[0014] Compared with the prior art, the advantages of the present application are: a pre-stressing unit is utilized to clamp the end cover of the arrester body onto the chuck, so that the resistor sheet is stacked and placed between the two end covers. By rotating the push rod, the chuck applies pressure to the resistor sheet under the push of the second spring, and the extrusion value is read by the pressure detector to prevent the problem of damage to the resistor sheet caused by excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure;

[0016] Figure 2 It is a schematic diagram of the exploded structure of some parts;

[0017] Figure 3 It is a schematic diagram of the exploded structure of the winding unit;

[0018] Figure 4 It is an overall plan view.

[0019] Description of reference numerals:

[0020] 1. Base frame; 11. Pressure detector; 112. Numerical table; 13. Chuck; 2. Lightning arrester body; 21. Clamping rod; 3. Drive unit; 31. Motor; 32. Bracket; 33. First synchronous wheel; 34. Rotating shaft; 35. Synchronous belt; 36. Second synchronous wheel; 4. Winding unit; 41. Side plate; 42. Screw; 43. Guide rod; 44. Bobbin; 45. Slide; 46. Tool holder; 47. Tool block; 48. First spring; 49. Pulley; 5. Preload unit; 51. Second spring; 52. Sleeve; 53. Push rod; 54. Bearing; 7. Slide plate; 71. Pad. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0022] like Figure 1-4 As shown, a lightning arrester core winding device includes a lightning arrester body 2 and further includes:

[0023] A base frame 1 is symmetrically provided with a chuck 13, and a pressure detector 11 is provided on the base frame 1 to match the chuck 13;

[0024] The prestressing unit 5 includes a sleeve 52 rotatably connected to the base frame 1, one end of the sleeve 52 cooperates with the chuck 13, and the other end is threadedly connected to a push rod 53, and a second spring 51 is provided on the push rod 53 to push the chuck 13. The push rod 53 rotates to push the chuck 13 through the second spring 51 so that the lightning arrester body 2 is clamped to the base frame 1.

[0025] Specifically, the lightning arrester body 2 includes an end cover, a resistor sheet and a clamping rod 21 arranged in a circular array on the end cover, and the resistor sheets are stacked and placed in the end cover. The clamping rod 21 contacts the end cover to fix the resistor sheet. The installation steps of the lightning arrester body 2 are to first clamp the end cover to the chuck 13, and then place a specified number of resistor sheets between the two end covers one by one. The top rod 53 is rotated to make the chuck 13 slide out of the sleeve 52 under the push of the second spring 51 to apply pressure to the end cover, and the chuck 13 on the other side will apply the extrusion force to the pressure detector 11. By detecting the size of the extrusion force, the resistor sheet is prevented from being damaged by excessive pressure.

[0026] As an embodiment further provided by the present invention, the pressure detector 11 is provided with a numerical meter 112 fixed on the base frame 1. When the push rod 53 squeezes the arrester body 2 on the chuck 13, the squeezing force will be displayed on the numerical meter 112, so that workers can better observe the size of the squeezing force to adapt to the assembly of different resistor sheets.

[0027] As an embodiment further provided by the present invention, a winding unit 4 is provided on one side of the base frame 1, and the winding unit 4 includes a side plate 41 fixed on the base frame 1, and a screw 42 and a guide rod 43 are provided on the side plate 41 in sequence, and a slide 45 is provided on the screw 42 and the guide rod 43, and a wire drum 44 and a pulley 49 are provided on the slide 45 in sequence, and a wire is provided on the wire drum 44 that fits the pulley 49 and is wound around the arrester body 2, and the screw 42 rotates to drive the side plate 41 to slide along the guide rod 43, thereby winding the arrester body 2.

[0028] As an embodiment further provided by the present invention, a knife holder 46 is slidingly provided on the slide 45, and a knife block 47 for cutting the wire is provided on the knife holder 46. A first spring 48 is provided between the knife holder 46 and the slide 45. After the wire winding is completed, the knife holder 46 can be pressed to cut the wire through the contact between the knife block 47 and the wire, thereby completing the winding of the lightning arrester body 2, and the first spring 48 plays a role in pushing the knife holder 46 to keep the knife block 47 away from the wire.

[0029] As an embodiment further provided by the present invention, a driving unit 3 is provided on one side of the base frame 1, and the driving unit 3 includes a second synchronous wheel 36, a motor 31 and a rotating shaft 34 that is clamped on the output shaft of the motor 31. The motor 31 is fixed to the base frame 1 through a bracket 32. A first synchronous wheel 33 is provided on the rotating shaft 34. A synchronous belt 35 is provided between the first synchronous wheel 33 and the second synchronous wheel 36. The base frame 1 includes a chuck 13 that cooperates with the rotating shaft 34. The model of the motor 31 is: MHMF042L1U2M2. The motor 31 runs to drive the rotating shaft 34 to rotate in conjunction with the chuck 13, that is, to rotate the lightning arrester body 2 on the chuck 13. At the same time, the first pulley drives the screw 42 on the second synchronous wheel 36 to rotate through the synchronous belt 35.

[0030] As an embodiment further provided by the present invention, a bearing 54 that matches the sleeve 52 is clamped on the base frame 1, and the bearing 54 improves the rotation effect of the rotating drum on the base frame 1.

[0031] As an embodiment further provided by the present invention, a slide plate 7 is slidingly provided on the base frame 1, and a pad 71 is provided on the slide plate 7 for matching with the arrester body 2. A triangular cone-shaped opening is provided on the pad 71. When assembling the resistor sheet of the arrester body 2, the slider can be pushed to slide to the symmetrical center of the base frame 1, that is, directly below the arrester body 2, and the resistor sheets are placed one by one in the triangular cone-shaped opening of the pad 71. When the top rod 53 is rotated, the end caps at both ends clamp the resistor sheets. When the arrester body 2 is wound, the slide plate 7 can be separated from the base frame 1.

[0032] Working principle: first, the end cover is clamped onto the chuck 13, and the pad 71 is slid to the bottom of the chuck 13, and then the resistors are placed on the pad 71 one by one, and the rotating push rod 53 pushes the end cover on the chuck 13 under the elastic action of the second spring 51 to clamp the resistor, and detects the extrusion force on the resistor through pressure detection to prevent the resistor from being damaged by excessive extrusion force. The clamping rod 21 is installed on the end cover to further fix the resistor, and the pad 71 is pushed to separate the base frame 1. The motor 31 drives the rotating shaft 34 to rotate the arrester body 2. At the same time, the first pulley drives the screw 42 on the second pulley to rotate through the synchronous belt 35, so that the slide 45 is located on the guide rod 43. Under the rotation of the arrester body 2, the wire of the bobbin 44 is wound onto the clamping rod 21. When it is close to the pre-stressing unit 5, the motor 31 is reversed so that the wire is located on the arrester body 2 and wound into a diamond shape, thereby improving the fixing effect of the resistor.

[0033] The technical solution of the above-mentioned utility model provides a solution that is significantly different from the existing technology to address the technical problem that the existing technology solution is too single. The parts not involved in the technical solution of this application are the same as the existing technology or can be implemented by using the existing technology, and will not be repeated here.

[0034] The technical solutions in the above embodiments have clearly and completely described the contents of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

Claims

1. A lightning arrester core winding device, comprising a lightning arrester body, characterized in that: Also includes: A base frame, on which a chuck is symmetrically arranged, and a pressure detector matched with the chuck is arranged on the base frame; The prestressing unit includes a sleeve rotatably connected to the base frame, one end of the sleeve cooperates with the chuck, and the other end is threadedly connected to a push rod, and a second spring is provided on the push rod to push the chuck. The push rod rotates to push the chuck through the second spring to clamp the lightning arrester body to the base frame.

2. The arrester core winding device according to claim 1, characterized in that: The pressure detector is provided with a numerical meter fixed on the base frame.

3. The arrester core winding device according to claim 1, characterized in that: A winding unit is provided on one side of the base frame, and the winding unit includes a side plate fixed on the base frame, a screw and a guide rod are provided on the side plate in sequence, a slide is provided on the screw and the guide rod, a wire drum and a pulley are provided on the slide in sequence, and a wire is provided on the wire drum that fits the pulley and is wound around the arrester body.

4. The arrester core winding device according to claim 3, characterized in that: A knife holder is slidably arranged on the slide, a knife block for cutting the wire is arranged on the knife holder, and a first spring is arranged between the knife holder and the slide.

5. The arrester core winding device according to claim 3, characterized in that: A driving unit is provided on one side of the base frame, and the driving unit includes a second synchronous wheel, a motor and a rotating shaft clamped on the output shaft of the motor. A first synchronous wheel is provided on the rotating shaft, and a synchronous belt is provided between the first synchronous wheel and the second synchronous wheel. The base frame includes a chuck that cooperates with the rotating shaft.

6. The arrester core winding device according to claim 1, characterized in that: A bearing matched with the sleeve is clamped on the base frame.

7. The arrester core winding device according to claim 1, characterized in that: A slide plate is slidably provided on the base frame, and a pad matched with the arrester body is provided on the slide plate.

8. The arrester core winding device according to claim 7, characterized in that: The cushion block is provided with a triangular cone-shaped opening.

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