CN115108411A

CN115108411A - Grounding resistance testing device

Info

Publication number: CN115108411A
Application number: CN202211043845.XA
Authority: CN
Inventors: 宋仕达; 张绪生; 张丹瑶; 张可昕; 王梦雨; 王世博; 徐成; 张时雨; 张�成; 王婷婷; 庞中原; 赵艺; 张达; 赵芳邈; 程薪颖
Original assignee: Yingkou Electric Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Liaoning Electric Power Co Ltd
Current assignee: Yingkou Electric Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Liaoning Electric Power Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-09-27

Abstract

The invention relates to the technical field of ground resistance testing, in particular to a ground resistance testing device which comprises a tester body, wherein a display panel and a control panel are arranged on the tester body, a winding mechanism is arranged in the tester body to wind a conducting wire, the winding mechanism comprises a support arranged in the tester body, a first supporting shaft, a second supporting shaft and a transmission roller are sequentially and rotatably connected onto the support, and the transmission roller is fixedly connected with the winding roller. According to the invention, the winding roller is driven to rotate by the driving motor, and simultaneously the driving motor drives the first guide roller and the second guide roller to rotate intermittently by the intermittent assembly, so that the guide wheel moves intermittently to drive the wire guide wheel to move intermittently, and under the action of the first protrusion and the second protrusion, the guide wheel is sequentially contacted with the guide threads on the first guide roller and the second guide roller to reciprocate the guide wheel, so that the wire guide wheel is driven to move reciprocally to roll the wires on the winding roller uniformly in cooperation with the rotation of the winding roller.

Description

Grounding resistance testing device

Technical Field

The invention relates to the technical field of ground resistance testing, in particular to a ground resistance testing device.

Background

In the maintenance process of the power system, a ground resistance tester needs to be used for testing the ground resistance of the power equipment, and during testing, the ground terminal of the ground resistance tester needs to be grounded. It is a common practice to use a steel chisel as a grounding point and to hammer the grounding rod into the ground by a tool such as a hammer.

The existing ground resistance tester has two wires for testing, namely a voltage wire and a current wire. When detecting, insert the underground respectively with two ground connection probes along grounding body radiation direction, because the length of wire is longer, pulling open and packing up of wire need consume more time during the test to easy winding is in the same place, brings very big inconvenience for the test, has reduced work efficiency.

Disclosure of Invention

The invention aims to: in order to solve the above problems, a ground resistance testing device is proposed.

In order to achieve the purpose, the invention adopts the following technical scheme:

a grounding resistance testing device comprises a tester body, wherein a display panel and a control panel are arranged on the tester body, a winding mechanism is arranged in the tester body to wind wires, the winding mechanism comprises a support arranged in the tester body, a first support shaft, a second support shaft and a transmission roller are sequentially connected on the support in a rotating manner, the transmission roller is fixedly connected with a winding roller, the first support shaft and the second support shaft are respectively and fixedly connected with a first guide roller and a second guide roller, the first guide roller and the second guide roller are respectively provided with guide threads, one end of the first support shaft and one end of the second support shaft are respectively and fixedly connected with a first gear and a second gear, the first gear and the second gear are meshed and connected, the outer side of the support is fixedly connected with a support table, a driving motor is arranged on the support table, and the output end of the driving motor is connected with the transmission roller through a belt, an intermittent assembly is arranged between the output end of the driving motor and the second support shaft to drive the second support shaft to rotate intermittently, a support rod is fixedly connected to the support, and a guide assembly is arranged on the support rod;

the direction subassembly includes the sliding seat with bracing piece sliding connection, sliding seat lower extreme fixedly connected with support arm, sliding seat one side mid portion rotates and is connected with the bull stick, the bull stick lower extreme rotates and is connected with the leading wheel with direction screw thread matched with, the first pole setting of bull stick upper end fixedly connected with, support arm lower extreme fixedly connected with second pole setting, be equipped with the spring between first pole setting and the second pole setting, fixedly connected with gag lever post respectively on the sliding seat of bull stick both sides, the sliding seat upper end is rotated and is connected with the wire wheel, be equipped with respectively on first guide roll and the second guide roll with leading wheel matched with first arch and second arch.

Preferably, the intermittent type subassembly includes the carousel with the coaxial fixed connection of second back shaft, spacing groove and guide way have been seted up on the carousel, driving motor's output fixedly connected with disc, fixedly connected with and spacing groove matched with spacing arch and with guide way matched with guide bar on the disc.

Preferably, the limiting groove and the guide groove are respectively provided with a plurality of limiting grooves and guide grooves which are respectively distributed in an annular equidistant mode relative to the axis of the turntable.

Preferably, the number of the limiting grooves is the same as that of the guide grooves, and the limiting grooves and the guide grooves are alternately arranged.

Preferably, the limiting groove is an inner concave arc surface, and an outer convex arc surface matched with the limiting groove is arranged on the limiting protrusion.

Preferably, the spiral direction of the guide screw thread on the first guide roller and the second guide roller is the same.

Preferably, the first protrusion is arranged at one end of the guide thread on the first guide roller, which is far away from the first gear, and the second protrusion is arranged at one end of the guide thread on the second guide roller, which is close to the second gear.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

this application is through being equipped with winding mechanism, it rotates to drive the wind-up roll through driving motor, driving motor drives first guide roll and second guide roll intermittent type through intermittent type subassembly simultaneously, make leading wheel intermittent type move, drive wire wheel intermittent type move, under the effect of first arch and second arch, the leading wheel contacts with the direction screw thread on first guide roll and the second guide roll in proper order, make leading wheel reciprocating motion, thereby drive wire wheel reciprocating motion, the rotation of cooperation wind-up roll, wind the wire on the wind-up roll uniformly, avoid artifical rolling wire, realize automatic rolling when packing up the wire, and the work efficiency is improved, the wire is rolled in proper order simultaneously, wire intertwine has been avoided, be convenient for next use.

Drawings

FIG. 1 is a schematic diagram illustrating an overall structure of a testing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a winding mechanism provided according to an embodiment of the invention;

FIG. 3 illustrates a schematic structural view of an intermittent assembly provided according to an embodiment of the present invention;

FIG. 4 illustrates a schematic view of a first bump and a second bump structure provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating a guide assembly provided in accordance with an embodiment of the present invention.

Illustration of the drawings:

1. a tester body; 2. a support; 3. a driving roller; 4. a wind-up roll; 5. a first support shaft; 6. a second support shaft; 7. a first guide roller; 8. a second guide roller; 9. a guide thread; 10. a first protrusion; 11. a second protrusion; 12. a first gear; 13. a second gear; 14. a turntable; 15. a limiting groove; 16. a guide groove; 17. a support table; 18. a drive motor; 19. a disc; 20. a guide rod; 21. a limiting bulge; 22. a belt; 23. a support bar; 24. a sliding seat; 25. a support arm; 26. a rotating rod; 27. a guide wheel; 28. a first upright rod; 29. a second upright stanchion; 30. a spring; 31. a limiting rod; 32. a wire guide wheel; 33. a display panel; 34. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

a grounding resistance testing device comprises a tester body 1, a display panel 33 and a control panel 34 are arranged on the tester body 1, a winding mechanism is arranged in the tester body 1 for winding a lead, the winding mechanism comprises a support 2 arranged in the tester body 1, a first support shaft 5, a second support shaft 6 and a transmission roller 3 are sequentially and rotatably connected on the support 2, a winding roller 4 is fixedly connected on the transmission roller 3, a first guide roller 7 and a second guide roller 8 are respectively and fixedly connected on the first support shaft 5 and the second support shaft 6, guide threads 9 are respectively arranged on the first guide roller 7 and the second guide roller 8, a first gear 12 and a second gear 13 are respectively and fixedly connected at one end of the first support shaft 5 and one end of the second support shaft 6, the first gear 12 is meshed with the second gear 13, a support table 17 is fixedly connected on the outer side of the support 2, a driving motor 18 is arranged on the support table 17, the output end of the driving motor 18 is connected with the driving roller 3 through a belt 22, an intermittent assembly is arranged between the output end of the driving motor 18 and the second supporting shaft 6 to drive the second supporting shaft 6 to rotate intermittently, a supporting rod 23 is fixedly connected to the support 2, and a guide assembly is arranged on the supporting rod 23; the guide assembly includes the sliding seat 24 with bracing piece 23 sliding connection, sliding seat 24 lower extreme fixedly connected with support arm 25, sliding seat 24 one side mid portion rotates and is connected with bull stick 26, bull stick 26 lower extreme rotates and is connected with and leads screw thread 9 matched with leading wheel 27, the first pole setting 28 of the first fixedly connected with in bull stick 26 upper end, support arm 25 lower extreme fixedly connected with second pole setting 29, be equipped with spring 30 between first pole setting 28 and the second pole setting 29, respectively fixedly connected with gag lever post 31 on the sliding seat 24 of bull stick 26 both sides, sliding seat 24 upper end rotates and is connected with wire guide wheel 32, be equipped with respectively on first guide roll 7 and the second guide roll 8 and lead first arch 10 and the second arch 11 with leading wheel 27 matched with. The winding roller 4 is driven to rotate by the driving motor 18, meanwhile, the driving motor 18 drives the first guide roller 7 and the second guide roller 8 to rotate intermittently through an intermittent assembly, so that the guide wheel 27 moves intermittently to drive the wire guide wheel 32 to move intermittently, the wires are uniformly wound on the winding roller 4 by matching with the rotation of the winding roller 4, the wires are prevented from being wound manually, automatic winding is realized when the wires are wound, the working efficiency is improved, meanwhile, the wires are sequentially wound, the wires are prevented from being wound, the next use is facilitated, meanwhile, the spring 30 is arranged, the spring 30 is always in a stretching state, when the guide wheel 27 is not in contact with the first bulge 10 and the second bulge 11, the rotating rod 26 is always in close fit with the limiting rod 31 far away from one side of the guide wheel 27 under the action of the tension of the spring 30, and therefore, the guide wheel 27 is always stably in contact with the guide threads 9 on the first guide roller 7 or the second guide roller 8, ensuring the guide assembly to operate continuously.

Specifically, as shown in fig. 2 and 3, the intermittent assembly includes a turntable 14 coaxially and fixedly connected to the second support shaft 6, the turntable 14 is provided with a limit groove 15 and a guide groove 16, an output end of the driving motor 18 is fixedly connected to a disc 19, and the disc 19 is fixedly connected to a limit protrusion 21 matched with the limit groove 15 and a guide rod 20 matched with the guide groove 16. The limiting grooves 15 and the guide grooves 16 are respectively provided in a plurality, and the limiting grooves 15 and the guide grooves 16 are respectively distributed in an annular equidistant manner about the axis of the turntable 14. The number of the stopper grooves 15 and the guide grooves 16 is the same, and a plurality of the stopper grooves 15 and the guide grooves 16 are alternately arranged. The limiting groove 15 is an inner concave cambered surface, and an outer convex cambered surface matched with the limiting groove 15 is arranged on the limiting protrusion 21. The disc 19 is driven to rotate by the driving motor 18, the disc 19 rotates to enable the guide rod 20 and the limiting protrusion 21 to rotate, when the guide rod 20 rotates to be in contact with the guide groove 16 at the corresponding position, the limiting protrusion 21 is separated from the limiting groove 15, the guide rod 20 continues to rotate to drive the rotary disc 14 to rotate for a certain angle until the guide rod 20 is separated from the guide groove 16, at the moment, the limiting protrusion 21 is in re-contact with the limiting groove 15, namely when the guide rod 20 is not in contact with the guide groove 16, the rotary disc 14 keeps static, when the rotary disc 14 keeps static, the limiting protrusion 21 is always in contact with the limiting groove 15, and therefore the stability of the rotary disc 14 is kept, and the stability of the first guide roller 7, the second guide roller 8, the guide wheel 27 and the guide wheel 32 is further guaranteed.

Specifically, as shown in fig. 2 and 4, the spiral direction of the guide screw 9 is the same in the first guide roller 7 and the second guide roller 8. The first protrusion 10 is arranged at one end of the guide thread 9 on the first guide roller 7 far away from the first gear 12, and the second protrusion 11 is arranged at one end of the guide thread 9 on the second guide roller 8 near the second gear 13. Because the rotation directions of the first guide roller 7 and the second guide roller 8 are opposite, and the spiral directions of the guide threads 9 on the first guide roller 7 and the second guide roller 8 are the same, the moving direction of the guide wheel 27 when contacting the guide threads 9 on the first guide roller 7 is opposite to the moving direction when contacting the guide threads 9 on the second guide roller 8, under the action of the first protrusions 10 and the second protrusions 11, the guide wheel 27 sequentially contacts the guide threads 9 on the first guide roller 7 and the second guide roller 8, so that the guide wheel 27 reciprocates, the wire guide wheel 32 is driven to reciprocate, and the wires are uniformly wound on the winding roller 4 in cooperation with the rotation of the winding roller 4.

In summary, after the testing device completes the testing, the wire is wound around the winding roller 4 through the wire guiding wheel 32, the driving motor 18 is started, the driving roller 3 is driven to rotate by the belt 22, so that the winding roller 4 rotates, the wire is wound on the winding roller 4, the driving motor 18 drives the driving roller 3 to rotate and simultaneously drives the disc 19 to rotate, the disc 19 rotates so that the guide rod 20 and the limiting protrusion 21 rotate, when the guide rod 20 rotates to contact with the guide groove 16 at the corresponding position, the limiting protrusion 21 is separated from the limiting groove 15, the guide rod 20 continues to rotate to drive the turntable 14 to rotate by a certain angle until the guide rod 20 is separated from the guide groove 16, at this time, the limiting protrusion 21 is in re-contact with the limiting groove 15, and in such a reciprocating manner, the turntable 14 rotates to intermittently rotate, the second supporting shaft 6 drives the second gear 13 and the second guiding roller 8 to rotate, the second gear 13 rotates to enable the first gear 12 engaged with the second gear to rotate, the first gear 12 rotates to drive the first guide roller 7 to rotate through the first supporting shaft 5, the first gear 12 is engaged with the second gear 13, the rotating directions of the first gear 12 and the second gear 13 are opposite, further the rotating directions of the first guide roller 7 and the second guide roller 8 are opposite, when the guide wheel 27 deflects to the second guide roller 8 under the pulling force of the spring 30, the guide wheel 27 is contacted with the guide thread 9 on the second guide roller 8, the guide wheel 27 intermittently moves along with the intermittent rotation of the second guide roller 8, so as to drive the rotating rod 26 and the sliding seat 24 to intermittently move, the wire guide wheel 32 intermittently moves, the wire is uniformly wound on the winding roller 4 in coordination with the rotation of the winding roller 4, when the guide wheel 27 moves to the tail end of the guide thread 9 on the second guide roller 8, the guide wheel 27 is contacted with the second protrusion 11, under the push of the second bulge 11, the guide wheel 27 deflects to the first guide roller 7, the rotating rod 26 is driven to swing from the contact with the limiting rod 31 close to one side of the first guide roller 7 to the contact with the limiting rod 31 close to one side of the second guide roller 8, under the action of the pulling force of the spring 30, the rotating rod 26 is tightly attached to the limiting rod 31, the guide wheel 27 deflects to the first guide roller 7 and then contacts with the guide thread 9 on the first guide roller 7, because the rotating directions of the first guide roller 7 and the second guide roller 8 are opposite, and simultaneously, the spiral directions of the guide threads 9 on the first guide roller 7 and the second guide roller 8 are the same, the moving direction of the guide wheel 27 when contacting with the guide thread 9 on the first guide roller 7 is opposite to the moving direction when contacting with the guide thread 9 on the second guide roller 8, the guide wheel 27 continuously and intermittently moves, and the winding of the winding roller 4 is matched until the guide wheel 27 moves to the contact with the first bulge 10, the guide wheel 27 is pushed by the first protrusion 10 to deflect the second guide roller 8 again, and the guide wheel reciprocates in such a way, so that the wire guide wheel 32 is driven by the guide wheel 27 to reciprocate, and the wire is uniformly wound on the winding roller 4 by matching with the rotation of the winding roller 4.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a ground resistance testing arrangement, includes tester body (1), be equipped with display panel (33) and control panel (34) on tester body (1), its characterized in that, tester body (1) inside is equipped with winding mechanism with the rolling wire, winding mechanism is including locating inside support (2) of tester body (1), it has first back shaft (5), second back shaft (6) and driving roller (3) to rotate in proper order on support (2), fixedly connected with wind-up roll (4) on driving roller (3), on first back shaft (5) and second back shaft (6) respectively fixedly connected with first guide roll (7) and second guide roll (8), all be equipped with direction screw thread (9) on first guide roll (7) and second guide roll (8), the one end difference fixedly connected with first gear (12) and second gear (6) of first back shaft (5) and second back shaft (6), (12) and second gear (6) 13) The first gear (12) is meshed with the second gear (13), a support table (17) is fixedly connected to the outer side of the support (2), a driving motor (18) is arranged on the support table (17), the output end of the driving motor (18) is connected with the transmission roller (3) through a belt (22), an intermittent assembly is arranged between the output end of the driving motor (18) and the second support shaft (6) to drive the second support shaft (6) to intermittently rotate, a support rod (23) is fixedly connected to the support (2), and a guide assembly is arranged on the support rod (23); the guide component comprises a sliding seat (24) which is connected with the supporting rod (23) in a sliding way, the lower end of the sliding seat (24) is fixedly connected with a support arm (25), the middle part of one side of the sliding seat (24) is rotatably connected with a rotating rod (26), the lower end of the rotating rod (26) is rotationally connected with a guide wheel (27) matched with the guide thread (9), the upper end of the rotating rod (26) is fixedly connected with a first upright rod (28), the lower end of the support arm (25) is fixedly connected with a second upright rod (29), a spring (30) is arranged between the first vertical rod (28) and the second vertical rod (29), the sliding seats (24) at the two sides of the rotating rod (26) are respectively and fixedly connected with a limiting rod (31), the upper end of the sliding seat (24) is rotatably connected with a wire guide wheel (32), and the first guide roller (7) and the second guide roller (8) are respectively provided with a first bulge (10) and a second bulge (11) which are matched with the guide wheel (27).

2. The grounding resistance testing device according to claim 1, characterized in that the intermittent assembly comprises a turntable (14) coaxially and fixedly connected with the second supporting shaft (6), the turntable (14) is provided with a limiting groove (15) and a guide groove (16), the output end of the driving motor (18) is fixedly connected with a disc (19), and the disc (19) is fixedly connected with a limiting protrusion (21) matched with the limiting groove (15) and a guide rod (20) matched with the guide groove (16).

3. The grounding resistance testing device according to claim 2, characterized in that a plurality of limiting grooves (15) and guiding grooves (16) are respectively formed, and the plurality of limiting grooves (15) and guiding grooves (16) are respectively distributed in an annular shape with equal distance about the axis of the turntable (14).

4. A ground resistance testing device according to claim 3, characterized in that the number of said limiting grooves (15) and said guiding grooves (16) is the same, and a plurality of limiting grooves (15) and guiding grooves (16) are arranged alternately.

5. The grounding resistance testing device of claim 4, wherein the limiting groove (15) is an inner concave arc surface, and the limiting protrusion (21) is provided with an outer convex arc surface matched with the limiting groove (15).

6. A grounding resistance testing device according to claim 1, characterized in that the direction of the spiral of the guiding thread (9) on the first guiding roller (7) and the second guiding roller (8) is the same.

7. A grounding resistance testing device according to claim 6, characterized in that the first protrusion (10) is arranged at the end of the guiding thread (9) on the first guiding roller (7) far from the first gear (12), and the second protrusion (11) is arranged at the end of the guiding thread (9) on the second guiding roller (8) near the second gear (13).