CN110311324B - Folding rotary crossing structure - Google Patents
Folding rotary crossing structure Download PDFInfo
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- CN110311324B CN110311324B CN201810256024.1A CN201810256024A CN110311324B CN 110311324 B CN110311324 B CN 110311324B CN 201810256024 A CN201810256024 A CN 201810256024A CN 110311324 B CN110311324 B CN 110311324B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
A folding rotary spanning frame comprises a supporting mechanism, a lifting mechanism and an actuating mechanism, wherein the lifting mechanism and the actuating mechanism are vertically arranged on the supporting mechanism; the lifting mechanism comprises a lifting platform arranged on the supporting mechanism, a sliding rail fixed on the lifting platform in the vertical direction, an upper sliding block and a lower sliding block arranged on one side of the sliding rail, and the lower sliding block is controlled by a steering pulley arranged on the other side of the supporting mechanism through a power rope; the actuating mechanism comprises a folding arm connected with the upper sliding block, a folding stay bar connected with the lower sliding block, a plurality of net sealing holding rods fixed in a rail clamping groove above the folding arm and a connecting pin shaft arranged on the other side of the folding arm; the invention has simple structure and reduces the engineering cost; the construction is convenient; the net sealing speed is high, the net sealing assembly function can be easily realized through the rotating mechanism, and the condition of unsmooth butt joint is not easy to occur.
Description
The technical field is as follows:
the invention relates to power transmission line construction equipment, in particular to a crossing frame device used in power transmission line crossing construction.
Background art:
with the rapid development of the construction of the power transmission line, users pay more and more attention to the safety of the construction, and in the construction of the existing power transmission line, the construction of the crossing overhead line has the characteristics of multiple dangerous points, complex construction environment and the like.
At present, the mode of erecting a spanning frame is generally adopted to protect a spanned object, and although the spanning basic function requirements are met when each construction unit designs a lattice type spanning frame for spanning construction, problems exist at the same time, such as large structure mass, complex installation, unstable structure and inconvenient construction; when the rigid net-sealing holding pole is installed, the rigid net-sealing holding pole needs to be installed independently, the construction time is long, and the process is complex; moreover, the twisting phenomenon is easy to occur in the implementation process, so that the workload of constructors is increased, and meanwhile, the safety is not high enough; the power is insufficient, the power output process is not stable, and the blocking phenomenon is easy to occur.
The invention content is as follows:
in order to solve the defects in the prior art, the invention provides a folding rotary type crossing frame used in the field of power transmission line stringing construction equipment.
In order to achieve the purpose, the invention provides the following technical scheme:
a folding rotary spanning frame comprises a supporting mechanism, a lifting mechanism and an actuating mechanism, wherein the lifting mechanism and the actuating mechanism are vertically arranged on the supporting mechanism; the lifting mechanism comprises a lifting platform arranged on the supporting mechanism, a sliding rail fixed on the lifting platform in the vertical direction, an upper sliding block and a lower sliding block which are arranged on one side of the sliding rail, wherein the lower sliding block is controlled by a steering pulley arranged on the other side of the supporting mechanism through a power rope; the actuating mechanism comprises a folding arm connected with the upper sliding block, a folding support rod connected with the lower sliding block, a plurality of net sealing holding rods fixed in a rail clamping groove above the folding arm and a connecting pin shaft arranged on the other side of the folding arm.
Preferably, the supporting mechanism comprises a rotating table which drives the lifting mechanism and the executing mechanism to rotate;
preferably, the height of the lifting platform is adjusted with different crossing heights.
Preferably, the upper sliding block is fixed on the upper part of the sliding rail; the lower sliding block is controlled by a power rope to slide up and down in the sliding rail.
Preferably, the other end of the folding stay is fixed below the folding arm for supporting the folding arm.
Preferably, the number of the blocking holding poles is 3.
Preferably, the lifting platform and the folding arm are of a triangular lattice structure.
Preferably, the spanning frame is in an inverted V-shaped configuration after net sealing.
Preferably, the blocking holding pole is prepared from the following materials in percentage by mass: less than or equal to 0.20 percent of C, less than or equal to 1.70 percent of Mn, less than or equal to 0.50 percent of Si, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.07 percent of Nb, less than or equal to 0.15 percent of V, less than or equal to 0.20 percent of Ti, less than or equal to 0.30 percent of Cr, less than or equal to 0.012 percent of Ni, less than or equal to 0.10 percent of Mo, and the balance of Fe.
Preferably, the power rope is prepared from the following materials in percentage by mass: c:0.85 to 1.04, si:0.15 to 0.30, mn:0.15 to 0.30 percent, less than or equal to 0.03 percent of P, less than or equal to 0.03 percent of S and the balance of Fe. Compared with the closest prior art, the invention has the following excellent effects:
(1) The folding rotary crossing frame is simple in structure, mechanical faults are not prone to occurring in the net sealing process, and engineering cost is reduced.
(2) The folding rotary crossing frame is stable in structure and convenient and fast to construct, the butt joint problem of the folding arms on the two sides does not need to be repeatedly adjusted in the whole construction process, the folding rotary crossing frame can be synchronously butted to a preset position, the workload of constructors is reduced, the engineering cost is reduced, and the economic benefit is achieved.
(3) The folding rotary type crossing frame is high in net sealing speed, after the crossing frame mechanisms on the two sides are prepared, the folding arms are opened on the two sides at the same time and rotate to the net sealing state, fine adjustment is not needed in the whole process, the mechanical failure rate is low, and the requirement on net sealing time is met.
(4) The folding rotary crossing frame is high in safety and reliability, and the blocking holding pole is fixed in the track clamping groove above the folding arm, so that potential safety hazards caused by failure of a trolley when the blocking holding pole is fixed in a trolley hanging mode are avoided; the configuration after the net sealing is inverted V-shaped and is similar to the wire falling configuration in an accident state, so that the wire is in multi-point contact with the crossing frame, single-point contact is avoided, and the safety and reliability are high.
(5) The tensile strength of the power rope used by the folding rotary crossing frame is not less than 1960, and the folding rotary crossing frame is firm, durable, safe and reliable.
Description of the drawings:
FIG. 1 is a schematic view of the initial installation of the present invention;
FIG. 2 is a schematic view of the present invention after installation of the spanning frame;
wherein: the device comprises a steering pulley 1, a lifting platform 2, a power rope 3, a sliding rail 4, a folding support rod 5, a rotating platform 6, a net sealing holding rod 7, a folding arm 8, a connecting pin shaft 9 and a sliding block 10.
The specific implementation mode is as follows:
for a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1, the present invention provides a schematic view of the initial installation of the folding rotary type spanning frame. After the different crossing heights are adjusted through the lifting platform 2, the power device drives the power rope 3 through the steering pulley 1 to realize the up-and-down movement of the folding support rod 5 along the slide rail 4, and the folding arms 8 are opened and then quickly connected with the sealing nets of the folding arms 8 at two sides through the rotation of the rotating platform 6.
Fig. 2 is a schematic view of the folded rotary spanning frame according to the present invention after being overlapped. The crossing frame comprises a rotating mechanism, a lifting mechanism and an executing mechanism, wherein the lifting mechanism and the executing mechanism are arranged on the rotating mechanism; the rotating mechanism comprises a rotating table 6; the lifting mechanism comprises a lifting platform 2 arranged on the rotating platform 6, a sliding rail 4 fixed on the lifting platform 2, an upper sliding block and a lower sliding block 10 arranged on the sliding rail 4, a power rope 3 which is connected with the lower sliding block 10 and bypasses the top of the lifting platform, and a steering pulley 1 arranged outside the rotating platform 6; the actuating mechanism comprises a folding arm 8 connected with the upper sliding block, a folding stay bar 5 connected with the lower sliding block, 3 net sealing holding bars 7 fixed in a track clamping groove above the folding arm 8 and a connecting pin shaft 9 arranged at the other side of the folding arm 8; the net sealing holding pole arranged in the guide rail clamping groove above the folding arm avoids potential safety hazards caused by trolley failure when the net sealing holding pole is fixed in a hanging trolley mode, and improves stability and safety of net sealing.
The height of the lifting platform 2 is adjusted with different crossing heights.
The upper slide block is fixed on the upper part of the slide rail 4; the lower sliding block 10 slides up and down in the sliding rail 4 under the control of the power rope 3.
The other end of the folding stay 5 is fixed below the folding arm 8 to support the folding arm 8.
The lifting platform 2 and the folding arm 8 are in a triangular lattice structure.
The crossing frame is in an inverted V-shaped configuration after being sealed, and is close to a wire falling configuration in an accident state, so that the wire is in multi-point contact with the crossing frame; avoid single-point contact, the security is high.
The net sealing holding pole 7 is prepared from the following materials in percentage by mass: c:0.20, mn:1.70, si:0.50, P:0.035, S:0.035, nb:0.07, V:0.15, ti:0.20, cr:0.30, ni:0.012, mo:0.10; fe:96.7.
the power rope 3 is prepared from the following materials in percentage by mass: c:0.92, si:0.24, mn:0.22, P:0.01, S:0.02; fe:98.6.
the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the specific embodiments of the present invention can be modified or substituted with equivalents with reference to the above embodiments, and any modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims to be appended.
Claims (8)
1. A folding rotary spanning frame is characterized by comprising a supporting mechanism, a lifting mechanism and an actuating mechanism, wherein the lifting mechanism and the actuating mechanism are vertically arranged on the supporting mechanism;
the lifting mechanism comprises a lifting platform arranged on the supporting mechanism, a slide rail fixed on the lifting platform in the vertical direction, an upper slide block and a lower slide block which are arranged on one side of the slide rail, wherein the lower slide block is controlled by a steering pulley arranged on the other side of the supporting mechanism through a power rope;
the actuating mechanism comprises a folding arm connected with the upper sliding block, a folding stay bar connected with the lower sliding block, a plurality of net sealing holding rods fixed in a track clamping groove above the folding arm and a connecting pin shaft arranged on the other side of the folding arm;
the slide rail, the upper slide block, the lower slide block, the folding support rod and the folding arm which are arranged on the other side of the lifting platform correspondingly form a V-shaped support structure;
the folding arms are supported by the folding support rods to form a regular V-shaped structure;
the net-sealing holding pole is prepared from the following materials in percentage by mass: less than or equal to 0.20 percent of C, less than or equal to 1.70 percent of Mn, less than or equal to 0.50 percent of Si, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.07 percent of Nb, less than or equal to 0.15 percent of V, less than or equal to 0.20 percent of Ti, less than or equal to 0.30 percent of Cr, less than or equal to 0.012 percent of Ni, less than or equal to 0.10 percent of Mo and the balance of Fe;
the power rope is prepared from the following materials in percentage by mass: c:0.85 to 1.04, si:0.15 to 0.30, mn:0.15 to 0.30 percent, less than or equal to 0.03 percent of P, less than or equal to 0.03 percent of S and the balance of Fe.
2. The folding rotary spanning frame of claim 1, wherein; the supporting mechanism comprises a rotating table which drives the lifting mechanism and the executing mechanism to rotate.
3. The folding rotary spanning frame of claim 1, wherein; the height of the lifting platform can be adjusted along with different crossing heights.
4. The folding rotary spanning frame of claim 1, wherein; the upper sliding block is fixed on the upper part of the sliding rail; the lower sliding block is controlled by a power rope to slide up and down in the sliding rail.
5. The folding rotary spanning frame of claim 1, wherein; the other end of the folding support rod is fixed below the folding arm and used for supporting the folding arm.
6. The folding rotary crossover of claim 1, wherein; the number of the net-sealing holding poles is 3.
7. The folding rotary spanning frame of claim 1, wherein; the lifting platform and the folding arm are of a triangular lattice structure.
8. The folding rotary spanning frame of claim 1, wherein; the crossing frame is in an inverted V-shaped configuration after net sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810256024.1A CN110311324B (en) | 2018-03-27 | 2018-03-27 | Folding rotary crossing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810256024.1A CN110311324B (en) | 2018-03-27 | 2018-03-27 | Folding rotary crossing structure |
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| Publication Number | Publication Date |
|---|---|
| CN110311324A CN110311324A (en) | 2019-10-08 |
| CN110311324B true CN110311324B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810256024.1A Active CN110311324B (en) | 2018-03-27 | 2018-03-27 | Folding rotary crossing structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114172081B (en) * | 2021-09-30 | 2024-02-02 | 国网山东省电力公司潍坊供电公司 | Lattice type vehicle-mounted mobile spanning device and application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203967625U (en) * | 2014-07-14 | 2014-11-26 | 国网上海市电力公司 | A kind of overhead facility crossing frame |
| CN104993421A (en) * | 2015-06-30 | 2015-10-21 | 国家电网公司 | Movable line laying crossing structure |
| CN105529648A (en) * | 2016-01-18 | 2016-04-27 | 国家电网公司 | Hydraulic fabricated crossing structure |
| CN106586921A (en) * | 2016-11-01 | 2017-04-26 | 国家电网公司 | Crossing block device |
| CN107394678A (en) * | 2017-06-27 | 2017-11-24 | 国家电网公司 | A kind of telescopic arm block crossing frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071366B (en) * | 2011-02-25 | 2012-09-26 | 上海海隆石油管材研究所 | High-toughness drilling rod applicable to corrosion acid environment and processing method thereof |
| CN107739978A (en) * | 2017-10-23 | 2018-02-27 | 武汉钢铁有限公司 | A kind of durable elevator wire rope production method of high-speed silent |
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2018
- 2018-03-27 CN CN201810256024.1A patent/CN110311324B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203967625U (en) * | 2014-07-14 | 2014-11-26 | 国网上海市电力公司 | A kind of overhead facility crossing frame |
| CN104993421A (en) * | 2015-06-30 | 2015-10-21 | 国家电网公司 | Movable line laying crossing structure |
| CN105529648A (en) * | 2016-01-18 | 2016-04-27 | 国家电网公司 | Hydraulic fabricated crossing structure |
| CN106586921A (en) * | 2016-11-01 | 2017-04-26 | 国家电网公司 | Crossing block device |
| CN107394678A (en) * | 2017-06-27 | 2017-11-24 | 国家电网公司 | A kind of telescopic arm block crossing frame |
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| CN110311324A (en) | 2019-10-08 |
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