CN110277742B - In put cabinet static contact change instrument - Google Patents
In put cabinet static contact change instrument Download PDFInfo
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- CN110277742B CN110277742B CN201910690231.2A CN201910690231A CN110277742B CN 110277742 B CN110277742 B CN 110277742B CN 201910690231 A CN201910690231 A CN 201910690231A CN 110277742 B CN110277742 B CN 110277742B
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- sleeve
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- shaft sleeve
- rod
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- 230000003068 static effect Effects 0.000 title claims description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
Abstract
The application provides a tool for replacing a fixed contact of a centrally installed switchgear, which comprises a supporting tripod; the support tripod comprises a support platform and 3 support 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 into 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 into the shaft sleeve ring; one end of the transmission rod is connected with a torque wrench. The beneficial effects of this application: the worker can complete the replacement of the fixed contact of the centrally installed switchgear outside the centrally installed switchgear, so that the working efficiency and the safety are improved; the torque spanner 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 the replacement of the centrally installed switchgear contact are improved.
Description
Technical Field
The application relates to the technical field of electric power tools, in particular to a fixed contact replacement tool for a centrally installed switchgear.
Background
With the high-speed development of social economy, the power grid load continuously rises, and the 10kV and 35kV centrally installed switchgear with the power grid load distribution function frequently generates overheat defects. The main causes of overheating defects of the centrally installed switchgear are two: firstly, the fixed contact of the centrally installed switchgear is seriously oxidized, so that the contact resistance is increased; secondly, after the middle-placed cabinet is operated for many times, fastening bolts of fixed contacts of the middle-placed cabinet are loosened, the fixed contacts incline, concentricity of the movable and fixed contacts of the middle-placed cabinet is deviated, and effective contact area is reduced. Therefore, fixed contacts of the centrally installed switchgear need to be replaced regularly. The current mode of replacing the fixed contact of the centrally installed switchgear mainly has the following problems: (1) The space in the middle-placed cabinet is narrow, the position of the fixed contact is deeper, a worker needs to hold a tool, bends down and drills into the middle-placed cabinet to replace, the working efficiency is low, the worker is easy to be injured, and the safety is poor; (2) Because the space in the cabinet is small, a torque wrench cannot be used, the fixed contact cannot be fastened only by the experience of a worker, the torque value required by national standards cannot be achieved, and too small or too large torque can cause the contact between the fixed contact and the busbar to be not practical, so that the equipment is overheated in operation.
Disclosure of Invention
The purpose of this application is to above problem, provides a put cabinet static contact change instrument in.
The application provides a tool for replacing a fixed contact of a centrally installed switchgear, which comprises a supporting tripod; the support tripod comprises a support platform and 3 supporting feet for supporting the support platform; the support leg comprises a support rod and a connecting plate arranged at one end of the support rod; the connecting plate is provided with a first mounting hole; the periphery of the supporting platform is uniformly provided with 3 connecting arms; 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; the first connecting arm is provided with a second mounting hole; the first fixing bolt sequentially passes through the second mounting hole and the first mounting hole and is propped 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 into 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 into the shaft sleeve ring; both ends of the transmission rod are provided with outer hexagonal bosses, and one end of the transmission rod is connected with a torque wrench. Through adopting above-mentioned technical scheme, will put the interior hexagon socket that the fastening bolt assorted with put cabinet stationary contact on the transfer line, put cabinet stationary contact change instrument in putting in, put the cabinet outside in arranging in one side that is equipped with the torque spanner, rotatory torque spanner can be to putting the fastening bolt fastening/loosening of cabinet stationary contact in, thereby realize putting the installation and the dismantlement of cabinet stationary contact in to, and then realize putting the change of cabinet stationary contact in.
According to the technical scheme provided by certain embodiments of the application, the connecting pipe comprises a hollow first telescopic pipe and a hollow second telescopic pipe; the first telescopic sleeve is inserted into the second telescopic sleeve; the first telescopic sleeve is connected with the supporting shaft sleeve; the second telescopic sleeve is connected with the supporting platform; the first telescopic sleeve and the second telescopic sleeve can relatively move in a telescopic manner so as to adjust the height of the supporting shaft sleeve.
According to the technical scheme provided by certain embodiments of the application, one end of the connecting plate, which is far away from the supporting rod, is provided with a limiting blocking part; the limiting blocking component is abutted with the supporting platform so as to limit the opening angle of the supporting leg.
According to some embodiments of the present application, the second connecting arm is provided with a second groove for accommodating the first fixing bolt at a side close to the first connecting arm.
According to the technical scheme provided by certain embodiments of the application, an anti-skid device is arranged on one side of the support leg 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 certain embodiments of the application, one side of the anti-slip sleeve, which is far away from the anti-slip seat, is connected with a supporting leg locking device; the support 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-slip 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; one end of the second semicircular ring, which is far away from the first semicircular ring, is provided with a second fixing plate; the first fixing plate is connected with the second fixing plate through a second fixing bolt.
The beneficial effects of this application:
1. the worker can complete the replacement of the fixed contact of the centrally installed switchgear outside the centrally installed switchgear, so that the working efficiency and the safety are improved;
2. the torque spanner 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 the replacement of the centrally installed switchgear contact 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 the fastening bolts of the fixed contact of the centrally installed switchgear.
Drawings
Fig. 1 is a schematic structural diagram 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 diagram of a stand bar of a static contact replacement tool for a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 3 is a schematic structural diagram of a support platform of a fixed contact replacement tool for a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 4 is a schematic structural diagram of a transmission rod of a fixed contact replacement tool of a centrally installed switchgear provided in embodiment 1 of the present application;
fig. 5 is a schematic structural diagram of an anti-skid device of a static contact replacement tool of a centrally installed switchgear provided in embodiment 2 of the present application;
fig. 6 is an enlarged schematic view of a portion a of fig. 5.
The text labels in the figures are expressed as:
1. a support platform; 2. a support leg; 3. a support rod; 4. a connecting plate; 5. a first mounting hole; 6. a limit blocking 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 telescoping tube; 15. a second telescoping 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 antiskid base; 25. a first semi-circular ring; 26. a second semicircle ring; 27. a first fixing plate; 28. a second fixing plate; 29. and a second fixing bolt.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present application, the following detailed description of the present application is provided by way of example and illustration only, and should not be construed to limit 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 support tripod comprises a support platform 1 and 3 support feet 2 for supporting the support 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; the connecting plate 4 is provided with a first mounting hole 5; one end of the connecting plate 4 far away from the supporting rod 3 is provided with a limiting blocking part 6; the limiting and blocking part 6 is abutted against the supporting platform 1 to limit the opening angle of the support legs 2; the section of the supporting platform 1 is regular hexagon, and 3 connecting arms are uniformly distributed on the periphery of the supporting platform 1; the connecting arms comprise 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; the first connecting arm 7 is provided with a second mounting hole 10; 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 passes 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 support 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 tube comprises a hollow first telescopic tube 14 and a hollow second telescopic tube 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 supporting shaft sleeve, the lower end of the first telescopic tube 14 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 to the height of the supporting shaft sleeve, so that the fixed contacts of the centrally installed switchgear with different heights are adapted; the fixed connection of the first telescopic tube 14 and the second telescopic tube 15 is realized by passing the first jackscrew 21 through the outer wall of the second telescopic tube 15 and pushing against the outer wall of the first telescopic tube 14; the support sleeve comprises a sleeve rod 16; the shaft sleeve rod 16 is inserted into the first telescopic tube 14 and is fixed by a second jackscrew 22; one end of the shaft sleeve rod 16, which is far away from the first telescopic rod, is connected with a shaft sleeve ring 17; a transmission rod 18 is inserted into the shaft collar 17; the two ends of the transmission rod 18 are provided with outer hexagonal bosses 19, wherein the outer hexagonal bosses 19 at one end are connected with the sleeves of the torque wrench 20, and the outer hexagonal bosses 19 at the other end can be provided with inner hexagonal sleeves of different sizes so as to be matched with the fastening bolts of the fixed contact of the centrally installed switchgear.
When the tool for replacing the fixed contact of the centrally installed switchgear provided by the embodiment is used, firstly, an inner hexagon sleeve matched with a fastening bolt of the fixed contact of the centrally installed switchgear is installed at one end of a transmission rod 18, the tool for replacing the fixed contact of the centrally installed switchgear is placed on an inner bottom plate of the centrally installed switchgear, and one side provided with a torque wrench 20 is placed outside the centrally installed switchgear; secondly, adjusting the position of the first telescopic tube 14 relative to the second telescopic tube 15 so that the transmission rod 18 and the fixed contact fastening bolt of the centrally installed switchgear are positioned at the same height, and fixing the fixed position by using a first jackscrew 21 after the adjustment is finished; finally, the torque value of the torque wrench 20 is adjusted to the standard value required by the fastening bolt of the fixed contact of 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 20, so that the fixed contact of the centrally installed switchgear is installed and disassembled, and the fixed contact of the centrally installed switchgear is replaced. The torque wrench 20 is adopted by the tool for replacing the fixed contact of the centrally installed switchgear, so that the torque value required by national standards is provided, adverse effects caused by overlarge or undersize torque are avoided, and the accuracy and reliability of the replacement of the contact of the centrally installed switchgear 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 the fastening bolts of the fixed contact of the centrally installed switchgear; the staff can accomplish the change to put cabinet static contact in putting the cabinet outside in putting, has improved work efficiency and security.
Example 2:
referring to fig. 5 and 6, the points of the present embodiment that are the same as those of embodiment 1 are not described in detail, and the difference is that: 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-slip sleeve 23 is obliquely arranged on the anti-slip seat 24, and the inclination angle of the anti-slip 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); the side of the anti-slip sleeve 23 away from the anti-slip seat 24 is connected with a supporting leg locking device; the leg locking means comprises a first semicircle 25, a second semicircle 26 and a second fixing bolt 29; the first semicircle 25 is fixedly connected with the anti-slip 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; the end of the second semicircle ring 26, which is far away from the first semicircle 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 anti-skid device is additionally arranged for each support leg 2, the support legs 2 are inserted into the anti-skid sleeves 23 and are fixed with the anti-skid device through the locking device, so that the friction force between the support legs 2 and the contact surface is effectively increased, and the fixed contact replacement tool of the centrally installed switchgear is more stable in use, so that the reliability is improved.
It should be noted that, the torque wrench 20 is conventional, and will not be described in detail herein.
Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. The foregoing is merely a preferred embodiment of the present application, and it should be noted that, due to the limited text expressions, there is objectively no limit to the specific structure, and it will be apparent to those skilled in the art that numerous modifications, adaptations or variations can be made therein without departing from the principles of the present invention, and the above technical features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the concepts and aspects of the invention in other applications without modification, are intended to be within the scope of this application.
Claims (4)
1. The tool for replacing the fixed contact of the centrally installed switchgear is characterized by comprising a supporting tripod; the support tripod comprises a support platform (1) and 3 support feet (2) for supporting the support 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 in the connecting plate (4); the periphery of the supporting platform (1) is uniformly provided with 3 connecting arms; the connecting arms comprise 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); the first connecting arm (7) is provided with a second mounting hole (10); the first fixing bolt (9) sequentially passes through the second mounting hole (10) and the first mounting hole (5) and is propped 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 sleeve comprises a sleeve 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 into the shaft sleeve ring (17); the two ends of the transmission rod (18) are respectively provided with an outer hexagonal boss (19), one end of the transmission rod is connected with a torque wrench (20), and the outer hexagonal bosses (19) at the other end can be provided with inner hexagonal sleeves with different sizes so as to be matched with fastening bolts of fixed contacts of the centrally installed switchgear;
one end of the connecting plate (4) far away from the supporting rod (3) is provided with a limiting blocking part (6); the limiting and blocking component (6) is abutted against the supporting platform (1) so as to limit the opening angle of the supporting leg (2);
the connecting pipe comprises a hollow first telescopic pipe (14) and a hollow second 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 sleeve (15) is connected with the supporting platform (1); the first telescopic sleeve (14) and the second telescopic sleeve (15) can move in a telescopic manner relatively so as to adjust the height of the supporting shaft sleeve.
2. The centrally installed switchgear static contact replacement tool 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).
3. The centrally installed switchgear static contact replacement tool according to claim 1, wherein an anti-slip device is arranged on one side of the support leg (2) 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 bottom of the anti-skid seat (24) is provided with an anti-skid pad.
4. A centrally installed switchgear static contact replacement tool according to claim 3, wherein a leg locking device is connected to a side of the anti-slip sleeve (23) remote from the anti-slip base (24); the support 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-slip 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 of the second semicircular ring (26) far away from the first semicircular ring (25); the first fixing plate (27) and the second fixing plate (28) are connected through the second fixing bolt (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690231.2A CN110277742B (en) | 2019-07-29 | 2019-07-29 | In put cabinet static contact change instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690231.2A CN110277742B (en) | 2019-07-29 | 2019-07-29 | In put cabinet static contact change instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110277742A CN110277742A (en) | 2019-09-24 |
| CN110277742B true CN110277742B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910690231.2A Active CN110277742B (en) | 2019-07-29 | 2019-07-29 | In put cabinet static contact change instrument |
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| Country | Link |
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| CN (1) | CN110277742B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201606629U (en) * | 2009-12-03 | 2010-10-13 | 项国飞 | Tripod stand |
| CN201897049U (en) * | 2010-11-17 | 2011-07-13 | 湖南省第三工程有限公司 | Lead hammer bracket |
| CN102975157A (en) * | 2012-11-07 | 2013-03-20 | 无锡隆达电仪成套有限公司 | Internal hexagonal wrench special for high-voltage board fixed contact |
| CN204935472U (en) * | 2015-09-25 | 2016-01-06 | 国网山东汶上县供电公司 | A kind of bolt disassembly instrument |
| CN106151813A (en) * | 2015-04-16 | 2016-11-23 | 秋野地(厦门)露营用品有限公司 | A kind of tripod structure |
| CN210074583U (en) * | 2019-07-29 | 2020-02-14 | 国网冀北电力有限公司廊坊供电公司 | In put cabinet static contact and change instrument |
-
2019
- 2019-07-29 CN CN201910690231.2A patent/CN110277742B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201606629U (en) * | 2009-12-03 | 2010-10-13 | 项国飞 | Tripod stand |
| CN201897049U (en) * | 2010-11-17 | 2011-07-13 | 湖南省第三工程有限公司 | Lead hammer bracket |
| CN102975157A (en) * | 2012-11-07 | 2013-03-20 | 无锡隆达电仪成套有限公司 | Internal hexagonal wrench special for high-voltage board fixed contact |
| CN106151813A (en) * | 2015-04-16 | 2016-11-23 | 秋野地(厦门)露营用品有限公司 | A kind of tripod structure |
| CN204935472U (en) * | 2015-09-25 | 2016-01-06 | 国网山东汶上县供电公司 | A kind of bolt disassembly instrument |
| CN210074583U (en) * | 2019-07-29 | 2020-02-14 | 国网冀北电力有限公司廊坊供电公司 | In put cabinet static contact and change instrument |
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| Publication number | Publication date |
|---|---|
| CN110277742A (en) | 2019-09-24 |
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