CN210074583U - In put cabinet static contact and change instrument - Google Patents
In put cabinet static contact and change instrument Download PDFInfo
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- CN210074583U CN210074583U CN201921203623.3U CN201921203623U CN210074583U CN 210074583 U CN210074583 U CN 210074583U CN 201921203623 U CN201921203623 U CN 201921203623U CN 210074583 U CN210074583 U CN 210074583U
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- 238000013021 overheating Methods 0.000 description 2
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Abstract
The application provides a static contact replacing tool for a centrally installed switchgear, which comprises a supporting tripod; the supporting tripod comprises a supporting platform and 3 supporting legs; a through hole is formed in the center of the supporting platform; a hollow connecting pipe is arranged above the supporting platform; the lower end of the connecting pipe is inserted into the through hole; one end of the connecting pipe, which is far away from the supporting platform, is connected with a supporting shaft sleeve; the support shaft sleeve comprises a shaft sleeve rod; the shaft sleeve rod is inserted in the connecting pipe; one end of the shaft sleeve rod, which is far away from the connecting pipe, is connected with a shaft sleeve ring; a transmission rod is inserted in the shaft sleeve ring; one end of the transmission rod is connected with a torque wrench. The beneficial effect of this application: workers can finish the replacement of the fixed contact of the middle-placed cabinet outside the middle-placed cabinet, so that the working efficiency and the safety are improved; the torque wrench is adopted to provide a torque value required by national standards, adverse effects caused by overlarge or undersize torque are avoided, and the accuracy and reliability of replacement of the contacts of the centrally installed switchgear are improved.
Description
Technical Field
The application relates to the technical field of electric power tools, in particular to a static contact replacing tool for a centrally installed switchgear.
Background
With the high-speed development of social economy, the load of a power grid continuously rises, and the 10kV and 35kV centrally installed switchgear which has the power grid load distribution function has the defect of frequent overheating. The main reasons for the overheating defect of the centrally installed switchgear are two: firstly, a fixed contact of the centrally installed switchgear is seriously oxidized, so that contact resistance is increased; and secondly, after the centrally installed switchgear is operated for multiple times, fastening bolts of fixed contacts of the centrally installed switchgear are loosened, the fixed contacts are inclined, the concentricity of the movable contacts and the fixed contacts of the centrally installed switchgear is deviated, and the effective contact area is reduced. Therefore, the fixed contact of the centrally installed switchgear needs to be replaced periodically. The mode of changing the fixed contact of the centrally installed switchgear at present mainly has the following problems: (1) the space in the middle-placed cabinet is narrow, the static contact is deep, workers need to hold a tool by hand and bend to drill into the middle-placed cabinet for replacement, the working efficiency is low, the workers are easy to be injured, and the safety is poor; (2) because the space is little in the cabinet, can't use the moment spanner, only rely on staff's experience to carry out the static contact fastening, can't reach the moment value that national standard required, and moment undersize or too big can cause the static contact not real with the generating line row contact, leads to equipment operation in overheated.
Disclosure of Invention
The utility model aims at above problem, provide a put cabinet static contact and change instrument in.
The application provides a static contact replacing tool for a centrally installed switchgear, which comprises a supporting tripod; the supporting tripod comprises a supporting platform and 3 supporting legs for supporting the supporting platform; the support legs comprise support rods and connecting plates arranged at one ends of the support rods; a first mounting hole is formed in the connecting plate; 3 connecting arms are uniformly distributed on the periphery of the supporting platform; the connecting arm comprises a first connecting arm, a second connecting arm and a first fixing bolt; a first groove for accommodating the connecting plate is arranged between the first connecting arm and the second connecting arm; a second mounting hole is formed in the first connecting arm; the first fixing bolt sequentially penetrates through the second mounting hole and the first mounting hole and abuts against the second connecting arm so as to fixedly connect the support leg with the supporting platform; a through hole is formed in the center of the supporting platform; a hollow connecting pipe is arranged above the supporting platform; the lower end of the connecting pipe is inserted into the through hole; one end of the connecting pipe, which is far away from the supporting platform, is connected with a supporting shaft sleeve; the support shaft sleeve comprises a shaft sleeve rod; the shaft sleeve rod is inserted in the connecting pipe; one end of the shaft sleeve rod, which is far away from the connecting pipe, is connected with a shaft sleeve ring; a transmission rod is inserted in the shaft sleeve ring; outer hexagonal bosses are arranged at two ends of the transmission rod, and one end of the transmission rod is connected with a torque wrench. By adopting the technical scheme, the inner hexagonal sleeve matched with the fastening bolt of the fixed contact of the centrally installed switchgear is installed on the transmission rod, the replacing tool for the fixed contact of the centrally installed switchgear is arranged in the centrally installed switchgear, one side provided with the torque wrench is arranged outside the centrally installed switchgear, and the fastening bolt of the fixed contact of the centrally installed switchgear can be fastened/loosened by rotating the torque wrench, so that the fixed contact of the centrally installed switchgear can be installed and detached, and the fixed contact of the centrally installed switchgear can be replaced.
According to the technical scheme provided by some embodiments of the application, the connecting pipe comprises a first hollow telescopic pipe and a second hollow telescopic pipe; the first telescopic sleeve is inserted in the second telescopic sleeve; the first telescopic sleeve is connected with the supporting shaft sleeve; the second telescopic pipe is connected with the supporting platform; the first telescopic sleeve and the second telescopic sleeve can move in a relatively telescopic mode so as to adjust the height of the supporting shaft sleeve.
According to the technical scheme provided by some embodiments of the application, one end of the connecting plate, which is far away from the supporting rod, is provided with a limiting and blocking component; the limiting blocking part is abutted against the supporting platform to limit the opening angle of the supporting leg.
According to the technical scheme provided by some embodiments of the application, the second connecting arm is provided with a second groove for accommodating the first fixing bolt at one side close to the first connecting arm.
According to the technical scheme provided by some embodiments of the application, an anti-skid device is arranged on one side of the support leg, which is far away from the supporting platform; the anti-skid device comprises an anti-skid sleeve sleeved outside the support legs and an anti-skid seat arranged at the bottom of the anti-skid sleeve; the bottom of the antiskid seat is provided with an antiskid pad.
According to the technical scheme provided by some embodiments of the application, one side of the anti-skid sleeve, which is far away from the anti-skid seat, is connected with a supporting foot locking device; the supporting leg locking device comprises a first semicircular ring, a second semicircular ring and a second fixing bolt; the first semicircular ring is fixedly connected with the anti-skidding sleeve; one end of the first semicircular ring is hinged with the second semicircular ring, and the other end of the first semicircular ring is provided with a first fixing plate; a second fixing plate is arranged at one end of the second semicircular ring, which is far away from the first semicircular ring; the first fixing plate is connected with the second fixing plate through a second fixing bolt.
The beneficial effect of this application:
1. workers can finish the replacement of the fixed contact of the middle-placed cabinet outside the middle-placed cabinet, so that the working efficiency and the safety are improved;
2. the torque wrench is adopted to provide a torque value required by national standards, so that adverse effects caused by overlarge or undersize torque are avoided, and the accuracy and reliability of replacement of the contacts of the centrally installed switchgear are improved;
3. the transmission rod is provided with an outer hexagonal boss, so that inner hexagonal sleeves with different sizes can be conveniently installed to be matched with a fastening bolt of a fixed contact of the centrally installed switchgear.
Drawings
Fig. 1 is a schematic structural view of a tool for replacing a fixed contact of a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 2 is a schematic structural view of a support leg of a static contact replacing tool for a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 3 is a schematic structural diagram of a supporting platform of a static contact replacing tool for a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 4 is a schematic structural view of a transmission rod of a static contact replacing tool for a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 5 is a schematic structural view of an anti-skid device of a tool for replacing a fixed contact of a centrally installed switchgear in accordance with embodiment 2 of the present application;
fig. 6 is an enlarged structural view of a part a of fig. 5.
The text labels in the figures are represented as:
1. a support platform; 2. a support leg; 3. a support bar; 4. a connecting plate; 5. a first mounting hole; 6. a limit stop member; 7. a first connecting arm; 8. a second connecting arm; 9. a first fixing bolt; 10. a second mounting hole; 11. a first groove; 12. a second groove; 13. a through hole; 14. a first telescopic tube; 15. a second telescopic tube; 16. a shaft sleeve rod; 17. a shaft collar; 18. a transmission rod; 19. an outer hexagonal boss; 20. a torque wrench; 21. a first jackscrew; 22. a second jackscrew; 23. an anti-slip sleeve; 24. an anti-slip seat; 25. a first semicircular ring; 26. a second semi-circular ring; 27. a first fixing plate; 28. a second fixing plate; 29. and a second fixing bolt.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Example 1:
as shown in fig. 1 to 4, the present embodiment provides a tool for replacing a fixed contact of a centrally installed switchgear, including a support tripod; the supporting tripod comprises a supporting platform 1 and 3 supporting feet 2 for supporting the supporting platform 1; the support leg 2 comprises a support rod 3 and a connecting plate 4 arranged at one end of the support rod 3; a first mounting hole 5 is formed on the connecting plate 4; one end of the connecting plate 4 far away from the supporting rod 3 is provided with a limiting and blocking component 6; the limiting and blocking part 6 is abutted with the supporting platform 1 to limit the opening angle of the support leg 2; the cross section of the supporting platform 1 is a regular hexagon, and 3 connecting arms are uniformly distributed on the periphery of the supporting platform 1; the connecting arm comprises a first connecting arm 7, a second connecting arm 8 and a first fixing bolt 9; a first groove 11 for accommodating the connecting plate 4 is arranged between the first connecting arm 7 and the second connecting arm 8; a second mounting hole 10 is formed in the first connecting arm 7; the second connecting arm 8 is provided with a second groove 12 for accommodating the first fixing bolt 9 at one side close to the first connecting arm 7; the first fixing bolt 9 sequentially penetrates through the second mounting hole 10 and the first mounting hole 5 and is propped in the second groove 12 of the second connecting arm 8 so as to fixedly connect the support leg 2 with the supporting platform 1; a through hole 13 is formed in the center of the supporting platform 1; a hollow connecting pipe is arranged above the supporting platform 1; the connecting pipe comprises a hollow first telescopic pipe 14 and a hollow second telescopic pipe 15; the outer diameter of the second telescopic tube 15 is smaller than the diameter of the through hole 13, and the lower end of the second telescopic tube 15 is inserted into the through hole 13 and is in threaded connection with the through hole 13; the upper end of the first telescopic tube 14 is connected with the support shaft sleeve, the lower end of the first telescopic tube is inserted into the second telescopic tube 15, and the first telescopic tube 14 can move up and down relative to the second telescopic tube 15 so as to adjust the height of the support shaft sleeve, thereby being suitable for fixed contacts of middle-placed cabinets with different heights; the first telescopic sleeve 14 is fixedly connected with the second telescopic sleeve 15 by enabling the first jackscrew 21 to penetrate through the outer wall of the second telescopic sleeve 15 and be propped against the outer wall of the first telescopic sleeve 14; the support sleeve comprises a sleeve rod 16; the shaft sleeve rod 16 is inserted into the first telescopic tube 14 and fixed through a second jackscrew 22; one end of the shaft sleeve rod 16 far away from the first telescopic rod is connected with a shaft sleeve ring 17; a transmission rod 18 is inserted in the shaft sleeve ring 17; outer hexagonal bosses 19 are arranged at two ends of the transmission rod 18, wherein the outer hexagonal boss 19 at one end is connected with a sleeve of the torque wrench 20, and inner hexagonal sleeves with different sizes can be arranged on the outer hexagonal boss 19 at the other end to be matched with fastening bolts of a fixed contact of the centrally installed switchgear.
When the tool for replacing the fixed contact of the middle-placed cabinet provided by the embodiment is used, firstly, the hexagon socket matched with the fastening bolt of the fixed contact of the middle-placed cabinet is installed at one end of the transmission rod 18, the tool for replacing the fixed contact of the middle-placed cabinet is placed on the bottom plate in the middle-placed cabinet, and the side provided with the torque wrench 20 is placed outside the middle-placed cabinet; secondly, adjusting the position of the first telescopic tube 14 relative to the second telescopic tube 15 to enable the transmission rod 18 and the fixed contact fastening bolt of the centrally installed switchgear to be located at the same height, and fixing the transmission rod and the fixed contact fastening bolt by using a first jackscrew 21 after the adjustment is finished; and finally, adjusting the torque value of the torque wrench 20 to a standard value required by a fastening bolt of the fixed contact of the centrally-mounted cabinet, and rotating the torque wrench 20 to fasten/loosen the fastening bolt of the fixed contact of the centrally-mounted cabinet, so that the fixed contact of the centrally-mounted cabinet can be mounted and dismounted, and the fixed contact of the centrally-mounted cabinet can be replaced. The tool for replacing the fixed contact of the middle-placed cabinet adopts the torque wrench 20 to provide a torque value required by national standards, so that adverse effects caused by overlarge or undersize torque are avoided, and the accuracy and reliability of replacing the fixed contact of the middle-placed cabinet are improved; the transmission rod 18 is provided with an outer hexagonal boss 19, so that inner hexagonal sleeves with different sizes can be conveniently installed to be matched with a fastening bolt of a fixed contact of the centrally installed switchgear; the replacement of the fixed contact of the middle-placed switch cabinet can be completed by the worker outside the middle-placed switch cabinet, so that the working efficiency and the safety are improved.
Example 2:
please further refer to fig. 5 and fig. 6, the same parts of this embodiment as those of embodiment 1 will not be repeated, but the differences are: an anti-skid device is arranged on one side of the support leg 2 far away from the support platform 1; the anti-skid device comprises an anti-skid sleeve 23 sleeved outside the support leg 2 and an anti-skid seat 24 arranged at the bottom of the anti-skid sleeve 23; the anti-skid sleeve 23 is obliquely arranged on the anti-skid seat 24, and the inclination angle of the anti-skid sleeve is consistent with the inclination angle of the support leg 2 relative to the horizontal plane; the bottom of the antiskid seat 24 is provided with an antiskid pad (not shown); one side of the anti-skid sleeve 23, which is far away from the anti-skid seat 24, is connected with a supporting foot locking device; the leg locking means includes a first semicircular ring 25, a second semicircular ring 26, and a second fixing bolt 29; the first semicircular ring 25 is fixedly connected with the antiskid sleeve 23; one end of the first semicircular ring 25 is hinged with the second semicircular ring 26, and the other end is provided with a first fixing plate 27; one end of the second semicircular ring 26, which is far away from the first semicircular ring 25, is provided with a second fixing plate 28; the first fixing plate 27 and the second fixing plate 28 are connected by a second fixing bolt 29.
Compared with the embodiment 1, the embodiment has the advantages that the anti-skid device is additionally arranged for each support leg 2, the support legs 2 are inserted into the anti-skid sleeve 23 and are fixed with the anti-skid device through the locking device, the friction force between the support legs 2 and the contact surface is effectively increased, the static contact replacing tool of the centrally installed switchgear can be more stable when in use, and the reliability is improved.
It should be noted that the torque wrench 20 is conventional in the art, and the description thereof is omitted.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Claims (6)
1. A static contact replacing tool for a centrally installed switchgear is characterized by comprising a supporting tripod; the supporting tripod comprises a supporting platform (1) and 3 supporting feet (2) for supporting the supporting platform (1); the support legs (2) comprise support rods (3) and connecting plates (4) arranged at one ends of the support rods (3); a first mounting hole (5) is formed in the connecting plate (4); 3 connecting arms are uniformly distributed on the periphery of the supporting platform (1); the connecting arm comprises a first connecting arm (7), a second connecting arm (8) and a first fixing bolt (9); a first groove (11) for accommodating the connecting plate (4) is arranged between the first connecting arm (7) and the second connecting arm (8); a second mounting hole (10) is formed in the first connecting arm (7); the first fixing bolt (9) sequentially penetrates through the second mounting hole (10) and the first mounting hole (5) and abuts against the second connecting arm (8) so as to fixedly connect the support leg (2) with the supporting platform (1);
a through hole (13) is formed in the center of the supporting platform (1); a hollow connecting pipe is arranged above the supporting platform (1); the lower end of the connecting pipe is inserted into the through hole (13); one end of the connecting pipe, which is far away from the supporting platform (1), is connected with a supporting shaft sleeve; the support bushing comprises a bushing rod (16); the shaft sleeve rod (16) is inserted into the connecting pipe; one end of the shaft sleeve rod (16) far away from the connecting pipe is connected with a shaft sleeve ring (17); a transmission rod (18) is inserted in the shaft sleeve ring (17); outer hexagonal bosses (19) are arranged at two ends of the transmission rod (18), and one end of the transmission rod is connected with a torque wrench (20).
2. The tool for replacing a fixed contact of a centrally installed switchgear cabinet according to claim 1, wherein the connecting pipe comprises a first hollow telescopic pipe (14) and a second hollow telescopic pipe (15); the first telescopic sleeve (14) is inserted into the second telescopic sleeve (15); the first telescopic sleeve (14) is connected with the supporting shaft sleeve; the second telescopic pipe (15) is connected with the supporting platform (1); the first telescopic sleeve (14) and the second telescopic sleeve (15) can move in a telescopic mode relatively so as to adjust the height of the supporting shaft sleeve.
3. The tool for replacing the fixed contact of the centrally installed switchgear cabinet as claimed in claim 1, wherein a limiting blocking member (6) is disposed at one end of the connecting plate (4) away from the supporting rod (3); the limiting blocking part (6) is abutted to the supporting platform (1) to limit the opening angle of the support leg (2).
4. The tool for replacing a fixed contact of a centrally installed switchgear cabinet according to claim 1, wherein the second connecting arm (8) is provided with a second groove (12) for accommodating the first fixing bolt (9) at a side close to the first connecting arm (7).
5. The tool for replacing the fixed contact of the centrally installed switchgear cabinet according to claim 1, wherein an anti-skid device is disposed on a side of the supporting leg (2) away from the supporting platform (1); the anti-skid device comprises an anti-skid sleeve (23) sleeved outside the support leg (2) and an anti-skid seat (24) arranged at the bottom of the anti-skid sleeve (23); and the bottom of the anti-skid seat (24) is provided with an anti-skid pad.
6. The tool for replacing the fixed contact of the centrally installed switchgear cabinet according to claim 5, wherein a leg locking device is connected to a side of the anti-slip sleeve (23) away from the anti-slip seat (24); the supporting leg locking device comprises a first semicircular ring (25), a second semicircular ring (26) and a second fixing bolt (29); the first semicircular ring (25) is fixedly connected with the anti-skid sleeve (23); one end of the first semicircular ring (25) is hinged with the second semicircular ring (26), and the other end of the first semicircular ring is provided with a first fixing plate (27); a second fixing plate (28) is arranged at one end, far away from the first semicircular ring (25), of the second semicircular ring (26); the first fixing plate (27) and the second fixing plate (28) are connected by the second fixing bolt (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203623.3U CN210074583U (en) | 2019-07-29 | 2019-07-29 | In put cabinet static contact and change instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203623.3U CN210074583U (en) | 2019-07-29 | 2019-07-29 | In put cabinet static contact and change instrument |
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| Publication Number | Publication Date |
|---|---|
| CN210074583U true CN210074583U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921203623.3U Active CN210074583U (en) | 2019-07-29 | 2019-07-29 | In put cabinet static contact and change instrument |
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| Country | Link |
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| CN (1) | CN210074583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277742A (en) * | 2019-07-29 | 2019-09-24 | 国网冀北电力有限公司廊坊供电公司 | A kind of middle-placed switch cabinet static contact replacement tool |
-
2019
- 2019-07-29 CN CN201921203623.3U patent/CN210074583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277742A (en) * | 2019-07-29 | 2019-09-24 | 国网冀北电力有限公司廊坊供电公司 | A kind of middle-placed switch cabinet static contact replacement tool |
| CN110277742B (en) * | 2019-07-29 | 2024-04-12 | 国网冀北电力有限公司廊坊供电公司 | In put cabinet static contact change instrument |
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