CN109510092B - Mounting mechanism and mounting method of pole-mounted circuit breaker - Google Patents
Mounting mechanism and mounting method of pole-mounted circuit breaker Download PDFInfo
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- CN109510092B CN109510092B CN201811625424.1A CN201811625424A CN109510092B CN 109510092 B CN109510092 B CN 109510092B CN 201811625424 A CN201811625424 A CN 201811625424A CN 109510092 B CN109510092 B CN 109510092B
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- 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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Abstract
The invention discloses an installation mechanism and an installation method of a pole-mounted circuit breaker, wherein the installation mechanism comprises an electric pole, an installation frame and an inclined support; the reversing wheel is fixed above the mounting frame; one end of the mounting frame, which is far away from the electric pole, is hinged with a pre-loading frame; one end of the pre-loading frame, which is far away from the mounting frame, is connected with a pull rope, and the pull rope bypasses the reversing wheel and extends to the ground; the mounting rack is provided with a mounting groove for accommodating the pre-loading rack; when the pre-loading frame is turned into the mounting groove, the lower surface of the pre-loading frame is flush with the upper surface of the mounting frame; the upper surface of the pre-loading frame is detachably connected with a pulley device, the middle part of the pre-loading frame is of a hollow structure, the pulley device comprises a guy cable, and the guy cable passes through the pre-loading frame from the middle part of the pre-loading frame to be connected with the pulley device; and a construction frame is further connected between the electric pole and the installation frame below the installation frame, and comprises a cross rod extending from the electric pole horizontally to one end of the installation frame far away from the electric pole. The breaker is not easy to collide and damage in the installation process, and the installation position of the breaker on the column is convenient to adjust.
Description
Technical Field
The invention relates to the technical field of electric power engineering installation, in particular to an installation mechanism and an installation method of a pole-mounted circuit breaker.
Background
The pole-mounted circuit breaker is an outdoor circuit breaker which is installed and used on an electric pole, and a large number of pole-mounted circuit breakers are required to be additionally installed along with the promotion of national power grid reconstruction engineering.
Among the prior art, the chinese patent document of bulletin CN206205553U of authorizing discloses a novel circuit breaker installing support on post, including the horizontal support horizontal pole, support the horizontal pole and be fixed in on the pole, the pole is fixed with the staple bolt in the below of supporting the horizontal pole, is connected with the bearing diagonal between staple bolt and the support horizontal pole.
Currently, pole-mounted circuit breakers are mainly fixed by adopting a mounting bracket similar to the mounting bracket; as shown in fig. 1, the mounting bracket 2 is fixed on the electric pole 1, then other cross arms 7 connected to the electric pole 1 and located above the mounting bracket 2 are used as fixed points to mount the pulley block 6, the suspension cable 5 and the suspension hooks are connected with the suspension rings at two ends of the shell of the on-column circuit breaker 4, the suspension cable 5 is pulled downwards by bypassing the pulley block 6 to enable the on-column circuit breaker 4 to be lifted to the height of the mounting bracket 2, then the mounting position of the on-column circuit breaker 4 is manually adjusted, and the on-column circuit breaker is fixed through bolts.
The existing installation mode mainly has the following problems: 1. when the pole-mounted circuit breaker 4 is not installed at a later stage, there may be no fixed point on the pole 1 suitable for installation of the pulley block 6, and the cross arm 7 needs to be installed separately for installation of the pulley block 6. 2. When the installing support 2 is located under the cross arm 7, the upward lifting movement track of the pole-mounted circuit breaker 4 is blocked by the installing support 2, the guy rope 5 is required to be manually stirred to enable the pole-mounted circuit breaker 4 to be misplaced with the installing support 2 until the pole-mounted circuit breaker 4 is lifted to the upper side of the installing support 2, then the installing position of the pole-mounted circuit breaker 4 is readjusted, and the pole-mounted circuit breaker 4 is easy to shake and easy to collide and damage in the process. 3. When the orthographic projection of installing support 2 and cross arm 7 misplaces, although the process that on-column circuit breaker 4 promoted to installing support 2 top can not receive installing support 2 to block, on-column circuit breaker 4 is not located installing support 2 directly over this moment, needs stir on-column circuit breaker 4 to installing support 2 and fix, stirs the angle big, has the difficult problem of adjustment.
Disclosure of Invention
The first object of the invention is to provide a mounting mechanism for a pole-mounted circuit breaker, which can conveniently realize the mounting of the pole-mounted circuit breaker, is not easy to collide and damage in the mounting process, and is convenient to adjust the mounting position of the pole-mounted circuit breaker.
The above object of the present invention is achieved by the following technical solutions:
the installation mechanism of the pole-mounted circuit breaker comprises an electric pole, and an installation frame fixedly connected to the electric pole, wherein an inclined support is connected between the electric pole and the installation frame below the installation frame; the reversing wheel is fixedly connected above the mounting frame; one end of the mounting frame, which is far away from the electric pole, is hinged with a pre-loading frame; the end, far away from the mounting frame, of the pre-installation frame is provided with a pull ring, the pull ring is detachably connected with a pull rope, and the pull rope bypasses the reversing wheel and extends to the ground; the mounting frame is provided with a mounting groove for accommodating the pre-loading frame; when the pre-loading frame is turned into the mounting groove, the lower surface of the pre-loading frame is flush with the upper surface of the mounting frame; the upper surface of the pre-loading frame is detachably connected with a pulley device, the middle part of the pre-loading frame is of a hollow structure, the pulley device comprises a guy cable, and the guy cable passes through the pre-loading frame from the middle part of the pre-loading frame to be connected with the pulley device; the utility model discloses a pole, the below in the mounting bracket still is connected with the scaffold between pole and the mounting bracket, the scaffold includes from pole horizontal extension to the cross pole that pole one end was kept away from to the mounting bracket.
Through adopting above-mentioned technical scheme, adjust the pre-loading frame to the horizontality through pulling the stay cord to fix the stay cord on the fixed object on ground, then fix pulley gear in the upper surface of pre-loading frame. The pole-mounted circuit breaker is hoisted in an inverted mode, and because the middle part of the pre-loading frame is of a hollow structure, the inhaul cable can pass through the middle part of the pre-loading frame and bypass the pulley device. Pulling the cable when the pole-mounted circuit breaker is lifted enables the lower shell of the pole-mounted circuit breaker to be lifted upwards to the lower surface of the pre-loading frame, and an installer can conveniently fix the pole-mounted circuit breaker on the lower surface of the pre-loading frame through the transverse rod standing of the construction frame. And after the pole-mounted circuit breaker is fixed, the pulley device is removed, and the pre-loading frame is pulled by the pull rope, so that the pre-loading frame is turned 180 degrees into the mounting groove. Because the lower surface of pre-loading frame and the upper surface parallel and level of mounting bracket when the pre-loading frame upset to the mounting groove for the upper surface of pre-loading frame can conflict to the bottom of mounting groove, and can not receive the restriction of column circuit breaker and the conflict of mounting bracket, makes fixed more firm. After the pre-assembly frame is turned into the mounting groove, the pre-assembly frame can be reinforced through the fastener, and then the reversing wheel and the pull rope are removed to complete the mounting of the pole-mounted circuit breaker. By adopting the scheme, even if the cross arm is not arranged above the mounting frame, the mounting frame can not block the upward lifting of the on-column circuit breaker, so that the on-column circuit breaker and the mounting frame are prevented from being staggered and lifted upwards, and the on-column circuit breaker is prevented from shaking caused by pulling the pull rope, so that the on-column circuit breaker is not easy to collide and damage. Meanwhile, when the on-column circuit breaker is lifted to the position of the pre-loading frame, the on-column circuit breaker is just opposite to the lower part of the pre-loading frame, so that an installer can conveniently adjust the installation position of the on-column circuit breaker.
The invention is further provided with: the pulley device comprises a base with a rectangular frame structure and two side plates which are connected to the base and are symmetrical to each other, two parallel fixing shafts are connected between the two side plates, each fixing shaft is rotatably connected with one pulley, two inhaul cables are provided, and each inhaul cable is correspondingly connected with one pulley.
By adopting the technical scheme, the traditional mode of adopting a pulley and a guy cable and respectively connecting the two ends of the breaker shell on the post after the guy cable is forked is abandoned. The scheme adopts two pulleys and two inhaul cables to be respectively connected with hanging rings at two ends of the breaker shell on the column, and when the inhaul cables are pulled, the stress at two ends of the breaker on the column is more uniform, and the breaker is not easy to shake in the lifting process.
The invention is further provided with: the upper end surfaces of the two side plates are connected with top plates, and a pressing wheel assembly for pressing the inhaul cable is arranged at a position of the top plates corresponding to the middle of the two pulleys; the pressing wheel assembly comprises a pressing wheel support and a pressing wheel rotationally connected to the pressing wheel support, the pressing wheel support is provided with a sliding rod, a sliding hole for the sliding rod to penetrate out is formed in the top plate, a compression spring for driving the pressing wheel to prop against the two pulleys is connected between the pressing wheel support and the top plate, and the compression spring is sleeved on the sliding rod.
Through adopting above-mentioned technical scheme, this scheme adopts two cable designs, when the pulling force of two cables has the difference, because the pinch roller compresses tightly the cable on two pulleys, when one of them cable pulls, this cable will drive the pinch roller and rotate, because the pinch roller compresses tightly another cable simultaneously, consequently the pinch roller can drive the pulley that this cable is connected through the frictional force between with another cable and produce the rotation; the rotation of two pulleys tends to be synchronous, so that the pulling force of two inhaul cables to the on-column circuit breaker tends to be the same, the lifting process of the on-column circuit breaker is stable, and the on-column circuit breaker is not easy to shake.
The invention is further provided with: the cross sections of the sliding rod and the sliding hole are hexagonal.
Through adopting above-mentioned technical scheme, the slide bar can't produce relative rotation with the slide hole for the pinch roller can not deflect, thereby can compress tightly on the cable of two pinch rollers more steadily.
The invention is further provided with: still be equipped with the clamp plate between pinch roller support and the roof, the slide bar forms sliding connection with the slide bar is located to the clamp plate cover, compression spring's both ends are contradicted respectively in pinch roller support and clamp plate, threaded connection has adjusting bolt on the roof, adjusting bolt is contradicted with the clamp plate and is connected.
Through adopting above-mentioned technical scheme, can adjust the position of clamp plate through twisting adjusting bolt to adjust compression spring to the clamp force of pinch roller support.
The invention is further provided with: the reversing wheel is arranged on the anchor ear and is connected with the electric pole through the anchor ear.
Through adopting above-mentioned technical scheme, conveniently install the switching-over wheel on the pole.
Another object of the present invention is to provide a method for installing a pole-mounted circuit breaker, including the installation mechanism of a pole-mounted circuit breaker, comprising the following steps:
step one: mounting a mounting frame, an inclined support, a preassembling frame, a construction frame and a reversing wheel on the electric pole;
step two: the pull ring on the pre-loading frame is connected through the pull rope, the pull rope bypasses the reversing wheel, the pull rope is pulled to enable the pre-loading frame to be in a horizontal state, and the pull rope is anchored on the ground;
step three: a pulley device is fixed on the pre-loading frame, and each pulley is provided with a inhaul cable; the two inhaul cables comprise connecting ends and pulling ends, and the connecting ends of the two inhaul cables are positioned at the left side of the pulley;
step four: inverting the on-column breaker, wherein hanging rings at two ends of the on-column breaker shell are respectively connected with the connecting end of a inhaul cable;
step five: pulling the pulling ends of the two inhaul cables to enable the pole-mounted circuit breaker to be stably lifted to the lower surface of the pre-loading frame in an inverted state, and fixing the pole-mounted circuit breaker at the bottom of the pre-loading frame by a constructor through bolts at the construction frame; then disassembling the pulley device;
step six: pulling the pull rope to enable the preassembled frame to turn 180 degrees and be accommodated in the installation groove of the installation frame and be reinforced through bolts, and finally dismantling the reversing wheel and the pull rope.
Through adopting above-mentioned technical scheme, even the mounting bracket top does not have the cross arm and also can install, the mounting bracket can not block the upward promotion of circuit breaker on the post simultaneously, consequently also need not to stir the cable and make circuit breaker on the post and mounting bracket dislocation upwards promote circuit breaker on the post again, so just also avoid the circuit breaker on the post to stir rocking that the cable produced for circuit breaker on the post is difficult for collision damage. Meanwhile, when the on-column circuit breaker is lifted to the position of the pre-loading frame, the on-column circuit breaker is just opposite to the lower part of the pre-loading frame, so that an installer can conveniently adjust the installation position of the on-column circuit breaker.
Drawings
Fig. 1 is a schematic diagram of a mounting structure of a prior art pole-mounted circuit breaker;
fig. 2 is a schematic structural view of the present embodiment;
FIG. 3 is a schematic illustration of the connection of the mounting frame to the pre-load frame according to the present embodiment;
FIG. 4 is a schematic view of the installation of the pulley device and the pre-load frame of the present embodiment;
fig. 5 is a schematic view of the internal structure of the pulley device of the present embodiment;
FIG. 6 is a schematic view showing the connection structure of the pinch roller assembly according to the present embodiment;
fig. 7 is a schematic view showing a state in which the pole-mounted circuit breaker of the present embodiment is connected to the pre-mount;
FIG. 8 is a schematic view of the pre-load frame of the present embodiment in an inverted state;
fig. 9 is a schematic view showing a state in which the pre-load frame is received in the mounting groove in a reversed state in this embodiment.
Reference numerals illustrate: 1. an electric pole; 2. a mounting bracket; 3. a diagonal support; 4. a pole-mounted circuit breaker; 5. a guy cable; 6. pulley block; 7. a cross arm; 8. a mounting frame; 9. a pre-loading frame; 10. a reversing wheel; 11. a pull rope; 12. a construction frame; 13. a pulley device; 14. a cross bar; 15. a vertical rod; 16. a rotating shaft; 17. a pull ring; 18. a mounting groove; 19. a support plate; 20. a base; 21. a side plate; 22. a top plate; 23. a fixed shaft; 24. a pulley; 25. a pinch roller bracket; 26. a hoop; 27. a pinch roller; 28. a slide bar; 29. a pressing plate; 30. a compression spring; 31. an adjusting bolt; 32. a connection end; 33. pulling the end.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples:
a method for installing a pole-mounted circuit breaker comprises a mounting mechanism of the pole-mounted circuit breaker 4 shown in fig. 2, wherein the mounting mechanism comprises an electric pole 1, a mounting frame 8, a pre-mounting frame 9, a reversing wheel 10, an inclined support 3, a construction frame 12 and a pulley device 13.
One end of the mounting frame 8 is fixed on the electric pole 1, and the other end is hinged with the pre-mounting frame 9; one end of the inclined support 3 is connected with the electric pole 1 through a hoop 26, and the other end is connected with the mounting frame 8 through bolts. The connection manner of the installation frame 8 and the inclined support 3 with the electric pole 1 is the same as the prior art, and is not repeated herein. The construction frame 12 comprises a cross rod 14 and a vertical rod 15, one end of the cross rod 14 is connected to a hoop 26 of the inclined support 3 through bolts or welding, the other end horizontally extends to the end part of the mounting frame 8, and two ends of the vertical rod 15 are respectively connected with the mounting frame 8 and the cross rod 14.
As shown in fig. 2-3, a rotating shaft 16 is arranged at one end of the mounting frame 8 far away from the electric pole 1, and one end of the pre-mounting frame 9 is sleeved on the rotating shaft 16 to form a rotating connection with the rotating shaft 16; the other end of the pre-loading frame 9 is provided with a pull ring 17. The mounting frame 8 comprises a mounting groove 18, and support plates 19 are uniformly distributed at the bottom of the mounting groove 18. The pre-load shelf 9 may be received in the mounting groove 18 by turning 180 degrees and the depth of the mounting groove 18 is set so that the lower surface of the pre-load shelf 9 is flush with the upper surface of the mounting frame 8 when the pre-load shelf 9 is received in the mounting groove 18.
As shown in fig. 2-3, the reversing wheel 10 is fixed on the electric pole 1 above the mounting frame 8 through a hoop, a mounting plate is welded on the hoop, and then the central shaft of the reversing wheel 10 is fixed on the mounting plate. As shown in fig. 1, the pull ring 17 is connected with a pull rope 11, and the pull rope 11 bypasses the reversing wheel 10 and extends to the ground.
As shown in fig. 2-3, the pulley device 13 is detachably connected to the upper surface of the pre-loading frame 9, the middle part of the pre-loading frame 9 is in a hollow structure, and the guy cable 5 of the pulley device 13 passes through the pre-loading frame 9 from the middle part of the pre-loading frame 9 and is connected with the pulley device 13.
As shown in fig. 4 to 6, the pulley device 13 includes a base 20 having a rectangular frame structure and two side plates 21 connected to the base 20 to be symmetrical to each other, and the base 20 can be fixed to the pre-installed frame 9 by bolts. Two parallel fixed shafts 23 are connected between the two side plates 21, each fixed shaft 23 is rotatably connected with one pulley 24, two inhaul cables 5 are respectively connected with one pulley 24, and each inhaul cable 5 is correspondingly connected with one pulley 24. The upper end surfaces of the two side plates 21 are connected with a top plate 22, and a pressing wheel assembly for pressing the inhaul cable 5 is arranged at a position, corresponding to the middle of the two pulleys 24, of the top plate 22. The pinch roller assembly comprises a pinch roller support 25 and a pinch roller 27 rotatably connected to the pinch roller support 25, wherein the pinch roller support 25 is provided with a slide bar 28, a slide hole for the slide bar 28 to penetrate is formed in the top plate 22, and the cross sections of the slide bar 28 and the slide hole are hexagonal. A pressing plate 29 is further arranged between the pressing wheel support 25 and the top plate 22, the pressing plate 29 is sleeved on the sliding rod 28 and is in sliding connection with the sliding rod 28, a compression spring 30 for driving the pressing wheel 27 to abut against the two pulleys 24 is connected between the pressing wheel support 25 and the pressing plate 29, the compression spring 30 is sleeved on the sliding rod 28, and two ends of the compression spring 30 respectively abut against the pressing wheel support 25 and the pressing plate 29; an adjusting bolt 31 is connected to the top plate 22 in a threaded manner, and the adjusting bolt 31 is in abutting connection with the pressing plate 29.
The embodiment comprises the following mounting steps:
step one: as shown in fig. 2, a mounting frame 8, a diagonal brace 3, a pre-loading frame 9, a construction frame 12 and a reversing wheel 10 are mounted on the electric pole 1.
Step two: the pull ring 17 on the pre-loading frame 9 is connected through the pull rope 11, the pull rope 11 bypasses the reversing wheel 10, the pull rope 11 is pulled to enable the pre-loading frame 9 to be in a horizontal state, and the pull rope 11 is anchored on the ground; the anchoring system may be configured by attaching an anchor to the ground and fixing the pull rope 11 to the anchor.
Step three: the pulley device 13 is fixed on the pre-loading frame 9, and as shown in fig. 5, each pulley 24 is provided with a pull rope 5; the inhaul cable 5 comprises a connecting end 32 and a pulling end 33, and the connecting ends 32 of the two inhaul cables 5 are positioned on the left side of the pulley 24;
step four: as shown in fig. 2, the pole-mounted circuit breaker 4 is turned upside down, and hanging rings at two ends of a shell of the pole-mounted circuit breaker 4 are respectively connected with a connecting end 32 of a guy cable 5;
step five: pulling the pulling ends 33 of the two inhaul cables 5, as shown in fig. 7, so that the on-column circuit breaker 4 is stably lifted to the lower surface of the pre-loading frame 9 in an inverted state, and a constructor fixes the on-column circuit breaker 4 at the bottom of the pre-loading frame 9 through bolts at the construction frame 12; the bottom of the pre-loading frame 9 can be pre-provided with mounting holes or field holes; then the pulley device 13 is disassembled; the pulling of the guy rope 5 can be performed by manpower or by a winch.
Step six: as shown in fig. 8-9, pulling the pull cord 11 causes the pre-load frame 9 to be flipped 180 degrees and received in the mounting groove 18 of the mounting frame 8 and reinforced by bolts, and finally removing the reversing wheel 10 and the pull cord 11.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (8)
1. The installation mechanism of the pole-mounted circuit breaker comprises an electric pole (1), a mounting rack (8) fixedly connected to the electric pole (1), and an inclined support (3) connected between the electric pole (1) and the mounting rack (8) below the mounting rack (8); the method is characterized in that: the electric pole (1) is fixedly connected with a reversing wheel (10) above the mounting frame (8); one end, far away from the electric pole (1), of the mounting frame (8) is hinged with a pre-mounting frame (9); one end of the pre-installation frame (9) far away from the installation frame (8) is provided with a pull ring (17), the pull ring (17) is detachably connected with a pull rope (11), and the pull rope (11) bypasses the reversing wheel (10) and extends to the ground; the mounting frame (8) is provided with a mounting groove (18) for accommodating the pre-loading frame (9); when the pre-assembly frame (9) is turned into the mounting groove (18), the lower surface of the pre-assembly frame (9) is flush with the upper surface of the mounting frame (8); the upper surface of the pre-loading frame (9) is detachably connected with a pulley device (13), the middle part of the pre-loading frame (9) is of a hollow structure, the pulley device (13) comprises a guy cable (5), and the guy cable (5) passes through the pre-loading frame (9) from the middle part of the pre-loading frame (9) to be connected with the pulley device (13); the utility model discloses a pole, including pole (1), mounting bracket (8), pole (1) and mounting bracket (8), still be connected with scaffold (12) in the below of mounting bracket (8) between pole (1) and mounting bracket (8), scaffold (12) include from pole (1) horizontal extension to cross pole (14) of mounting bracket (8) one end of keeping away from pole (1).
2. A mounting mechanism for a pole-mounted circuit breaker according to claim 1, wherein: the pulley device (13) comprises a base (20) with a rectangular frame structure and two side plates (21) which are connected to the base (20) in a mutually symmetrical mode, two parallel fixing shafts (23) are connected between the two side plates (21), one pulley (24) is connected to each fixing shaft (23) in a rotating mode, two inhaul cables (5) are arranged, and one pulley (24) is correspondingly connected to each inhaul cable (5).
3. A mounting mechanism for a pole-mounted circuit breaker according to claim 2, wherein: the upper end faces of the two side plates (21) are connected with a top plate (22), and a pressing wheel assembly for pressing the inhaul cable (5) is arranged at a position, corresponding to the middle of the two pulleys (24), of the top plate (22).
4. A mounting mechanism for a pole-mounted circuit breaker according to claim 3, wherein: the pressing wheel assembly comprises a pressing wheel support (25) and a pressing wheel (27) rotatably connected to the pressing wheel support (25), the pressing wheel support (25) is provided with a sliding rod (28), a sliding hole for the sliding rod (28) to penetrate is formed in a top plate (22), a compression spring (30) for driving the pressing wheel (27) to prop against two pulleys (24) is connected between the pressing wheel support (25) and the top plate (22), and the compression spring (30) is sleeved on the sliding rod (28).
5. The mounting mechanism for a pole-mounted circuit breaker of claim 4, wherein: the cross sections of the sliding rod (28) and the sliding hole are hexagonal.
6. The mounting mechanism for a pole-mounted circuit breaker of claim 5, wherein: still be equipped with clamp plate (29) between pinch roller support (25) and roof (22), slide bar (28) and slide bar (28) formation sliding connection are located to clamp plate (29) cover, the both ends of compression spring (30) are contradicted respectively in pinch roller support (25) and clamp plate (29), threaded connection has adjusting bolt (31) on roof (22), adjusting bolt (31) are contradicted with clamp plate (29) and are connected.
7. A mounting mechanism for a pole-mounted circuit breaker according to claim 1, wherein: the reversing wheel (10) is arranged on the anchor ear (26) and is connected with the electric pole (1) through the anchor ear (26).
8. A method of installing a pole-mounted circuit breaker comprising the installation mechanism of the pole-mounted circuit breaker of claim 6, characterized by: the method comprises the following steps:
step one: mounting a mounting frame (8), an inclined support (3), a pre-mounting frame (9), a construction frame (12) and a reversing wheel (10) on the electric pole (1);
step two: the pull ring (17) on the pre-loading frame (9) is connected through the pull rope (11), the pull rope (11) bypasses the reversing wheel (10), the pull rope (11) is pulled to enable the pre-loading frame (9) to be in a horizontal state, and the pull rope (11) is anchored on the ground;
step three: a pulley device (13) is fixed on the pre-loading frame (9), and each pulley (24) is provided with a inhaul cable (5); the inhaul cables (5) comprise connecting ends (32) and pulling ends (33), and the connecting ends (32) of the two inhaul cables (5) are positioned on the left side of the pulley (24);
step four: inverting the column-mounted circuit breaker (4), wherein hanging rings at two ends of a shell of the column-mounted circuit breaker (4) are respectively connected with a connecting end (32) of a inhaul cable (5);
step five: pulling the pulling ends (33) of the two inhaul cables (5) to enable the on-column circuit breaker (4) to be stably lifted to the lower surface of the pre-loading frame (9) in an inverted state, and fixing the on-column circuit breaker (4) at the bottom of the pre-loading frame (9) by a constructor at the construction frame (12) through bolts; then removing the pulley device (13);
step six: pulling the pull rope (11) to enable the pre-installation frame (9) to be turned 180 degrees to be contained in the installation groove (18) of the installation frame (8) and be reinforced through bolts, and finally dismantling the reversing wheel (10) and the pull rope (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625424.1A CN109510092B (en) | 2018-12-28 | 2018-12-28 | Mounting mechanism and mounting method of pole-mounted circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625424.1A CN109510092B (en) | 2018-12-28 | 2018-12-28 | Mounting mechanism and mounting method of pole-mounted circuit breaker |
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| Publication Number | Publication Date |
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| CN109510092A CN109510092A (en) | 2019-03-22 |
| CN109510092B true CN109510092B (en) | 2023-06-06 |
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| CN201811625424.1A Active CN109510092B (en) | 2018-12-28 | 2018-12-28 | Mounting mechanism and mounting method of pole-mounted circuit breaker |
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