CN111779348B - Supporting device of crossing system without crossing frame for power transmission line construction - Google Patents
Supporting device of crossing system without crossing frame for power transmission line construction Download PDFInfo
- Publication number
- CN111779348B CN111779348B CN202010669040.0A CN202010669040A CN111779348B CN 111779348 B CN111779348 B CN 111779348B CN 202010669040 A CN202010669040 A CN 202010669040A CN 111779348 B CN111779348 B CN 111779348B
- Authority
- CN
- China
- Prior art keywords
- plate
- panel
- temporary
- corner
- supporting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention relates to the technical field of power equipment, in particular to a supporting device of a spanning system without a spanning frame in power transmission line construction. The invention discloses a supporting device of a spanning system without a spanning frame in power transmission line construction, wherein temporary cross beams can be fixed at two ends of the cross beams, so that the temporary cross beams can be shortened to 3-5M from 35M, the problem of overlarge bending moment M generated on the temporary cross beams 12 under various working conditions such as a safe paying-off state, an accident dynamic state, an accident and the like is solved, the stress state of the temporary cross beams hung on a tower is effectively improved, the connection stability of the cross beams and the temporary cross beams is improved, the temporary cross beams are convenient to install and remove due to the arrangement of a base and a connecting piece, the unstable state of the temporary cross beams with the length of 35M in the installation and removal processes is avoided, and the construction risk is reduced. Meanwhile, the temporary cross beam is shortened, so that the weight of construction tools can be reduced, the construction efficiency is improved, and the power line power failure time and the highway road sealing time are effectively reduced.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a supporting device of a spanning system without a spanning frame in power transmission line construction.
Background
At present, important crossover power line erection construction for crossing expressways, railways, power lines and the like is carried out in the domestic power transmission line construction industry, or under the condition that a crossover frame cannot be erected at a crossover point due to the limitation of a crossover terrain, a crossover frame-free crossover frame line construction process is generally adopted for the erection or dismantling of the power lines.
When the spanning construction without a spanning frame is carried out in the power transmission line construction industry, temporary cross beams are required to be arranged on towers on two sides of a spanning gear to serve as supporting devices for blocking a net, 3 or 4 suspended bearing cables are arranged between the supporting devices on two sides of a spanning object, the suspended bearing cables above spanned objects such as an expressway are woven with insulating ropes or small steel wire ropes to form a net for isolating and protecting a new power line from the spanned objects, and the operation safety of spanned facilities such as the expressway can be protected in the power line erecting process. During construction, the two ends of the temporary cross beam are hung at the tower body part which is about 3-7 m below the cross arm of the lowest layer of the towers at the two sides of the spanned object by using steel wire ropes, and the temporary cross beam is bound on the angle steel or the steel pipe main material below the cross arms of the towers at the two sides of the spanned object by using the steel wire ropes. The method comprises the steps of suspending 2 gravity pulleys at the left end part and the right end part of a temporary cross beam and in the middle of the temporary cross beam, mounting bearing cables on the pulleys, suspending the bearing cables above a crossed facility at high speed and the like through tension, weaving (mounting) the bearing cables above a crossing point into a net shape through small steel wire ropes or insulating ropes, and separating power lines to be erected from the crossed facility through the net to form a non-crossing-frame crossing system for erecting the power lines, so that the safety distance and the protection of the crossed facility during the erection of the power lines are ensured, and the purpose of safely erecting the power lines on the crossed facility is realized.
The temporary cross beam is generally 35m long (500 x 500mm square steel holding poles, the weight reaches 19.3kN), long and heavy, the workload of field transportation, suspension and the like is increased, and the working efficiency is low. Because the temporary cross beam is longer and is fixed in a binding mode, the included angle between the floor stay wire suspended at the end part of the temporary cross beam and the ground is 40 degrees, a horizontal force component H1 is generated at the end part of the temporary cross beam, the horizontal force component H1 acts on the end part of the temporary cross beam, a bending moment M is H1L (L is the distance from the end part of the temporary cross beam to the tower body, and M) occurs, and the temporary cross beam is bent or even broken due to the bending moment. The temporary cross beam is bound at the tower body, so that the distance L between the end part of the temporary cross beam and the tower body is too long (L is Zx (wind deflection value of the conducting wire and the ground wire) + B (the difference between the longest cross arm length of the single-side conducting wire and the cross arm length of the lower conducting wire) + L1 (cross arm length of the lower conducting wire).
Disclosure of Invention
The invention provides a supporting device of a spanning system without a spanning frame for power transmission line construction, which solves the problem that when a longer temporary beam is fixed on a tower in a binding mode, and a main bearing rope suspended at the end part of the temporary beam is in various working conditions such as a safe paying-off state, an accident dynamic state, an accident static state and the like, the generated down force can generate a bending moment M on the temporary beam at the main material fixing point of a tower body, so that the allowable stress can be exceeded, and the risk of breaking the temporary beam is caused.
The specific technical scheme is as follows:
the invention provides a supporting device of a spanning system without a spanning frame in power transmission line construction, which comprises: two support device bodies;
the two supporting device bodies are symmetrically arranged at two ends of the cross arm of the transmission tower;
the supporting device body includes: the base is fixed at the end part of a cross arm of a transmission tower, and the temporary cross beam is connected with the base through the connecting piece;
the length of the temporary cross beam is 3-5 m.
Preferably, the connector comprises: yoke plate and first otic placode, the first end of first otic placode is fixed on the base, the second end is fixed on the yoke plate, the yoke plate deviates from the one side and the interim crossbeam of first otic placode are connected.
Preferably, the base includes: the angle plate is arranged on the first main plate and is located on the opposite side of the first clamping plate and/or the second clamping plate.
Preferably, the corner plate comprises a first corner plate and a second corner plate, and a first side plate of the first corner plate and a first side plate of the second corner plate are fixed on the first main plate;
the first end of the first ear panel is secured between the second side panel of the first gusset panel and the second side panel of the second gusset panel.
Preferably, the first clamping plate and the second clamping plate are provided with through holes, and the through holes are communicated with bolt holes of side plates of main angle steel of the cross arm of the transmission tower.
Preferably, the gusset further comprises: a third corner panel and a fourth corner panel;
the first side plate of the third corner plate and the first side plate of the fourth corner plate are fixed on the first main plate;
the connecting piece further comprises a second ear plate, and the first end of the second ear plate is fixed between the second side plate of the third corner plate and the second side plate of the fourth corner plate.
Preferably, the first end of the first ear panel is hingedly connected to the second side panel of the first corner panel and the second side panel of the second corner panel;
the first end of the second ear panel is hinged to the second side panel of the third corner panel and the second side panel of the fourth corner panel.
Preferably, the base further comprises: the third clamping plate and the fourth clamping plate are arranged on the first main plate;
the third clamping plate and the fourth clamping plate are fixed on two sides of a side plate of a main angle steel of the transmission tower cross arm.
Preferably, a reinforcing plate is arranged between the first clamping plate and the first main plate.
Preferably, a hanging plate is arranged at one end of the temporary cross beam, which is far away from the connecting piece;
the hanging plate is provided with a hanging hole.
According to the technical scheme, the invention has the following advantages:
the invention provides a supporting device of a spanning system without a spanning frame in power transmission line construction, wherein temporary cross beams can be fixed at two ends of cross beams, so that the temporary cross beams can be shortened to 3-5M from 35M, the problem of overlarge bending moment M generated on the temporary cross beams under various working conditions such as a safe paying-off state, an accident dynamic state, an accident and the like is solved, the stress state of the temporary cross beams hung on a tower is effectively improved, the connection stability of the cross beams and the temporary cross beams is improved, the temporary cross beams are convenient to install and remove due to the arrangement of a base and a connecting piece, the unstable state of the temporary cross beams with the length of 35M in the installation and removal processes is avoided, and the construction risk is reduced. Meanwhile, the temporary cross beam is shortened, so that the weight of construction tools can be reduced, the construction efficiency is improved, and the power line power failure time and the highway road sealing time are effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic connection diagram of a supporting device and a tower of a spanning system without a spanning frame in power transmission line construction in an embodiment of the invention;
FIG. 2 is a schematic view of a first connection structure of the supporting device body and the main angle steel side plate in the embodiment of the invention;
FIG. 3 is a schematic view of a second connection structure of the supporting device body and the main angle steel side plate in the embodiment of the invention;
FIG. 4 is a schematic view of a first connection structure of a base and a main angle steel side plate of a cross arm of a transmission tower in the embodiment of the invention;
FIG. 5 is a schematic diagram of a second connection structure of a base and a main angle steel side plate of a cross arm of a transmission tower in the embodiment of the invention;
FIG. 6 is a schematic diagram of a third connection structure of the base and the side plates of the main angle steel of the cross arm of the transmission tower in the embodiment of the invention;
FIG. 7 is a schematic view of a first structure of a connector according to an embodiment of the present invention;
FIG. 8 is a second structural view of a connector according to an embodiment of the present invention;
FIG. 9 is a third structural view of a connector in an embodiment of the present invention;
FIG. 10 is a side view of a first ear plate in an embodiment of the invention;
FIG. 11 is a front view of a first ear plate in an embodiment of the invention;
FIG. 12 is a side view of a temporary cross-beam in an embodiment of the present invention;
FIG. 13 is a schematic view of an end structure of a temporary beam in an embodiment of the present invention;
FIG. 14 is a schematic view of a connection structure between a hanging plate and a hanging hole in an embodiment of the present invention;
wherein the illustration is as follows:
1. a first main board; 2. a first splint; 3. a third splint; 4. a first corner panel; 5. a second gusset; 6. a third set square; 7. a fourth gusset; 8. a yoke plate; 9. a first ear plate; 10. a second ear panel; 11. a reinforcing plate; 12. a temporary cross beam; 13. a main angle steel side plate; 14. a supporting device body; 15. hanging the plate; 16. a string hanging hole.
Detailed Description
The embodiment of the invention provides a supporting device of a spanning system without a spanning frame for power transmission line construction, which is used for solving the problem that when a longer temporary cross beam is fixed on a tower in a binding mode, a temporary cross beam at a main material fixing point of a tower body generates a bending moment M due to generated downward pressure under various working conditions such as a safe paying-off state, an accident dynamic state, an accident static state and the like of a main bearing rope suspended at the end part of the temporary cross beam, so that the allowable stress can be exceeded, and the risk of breakage of the temporary cross beam is caused.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it should be apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic connection diagram of a supporting device and a tower of a spanning system without a spanning frame for power transmission line construction according to an embodiment of the present invention is provided.
Referring to fig. 2 to 3, two connection structures of the supporting device body 14 and the main angle steel side plate 13 according to the embodiment of the present invention are shown.
Referring to fig. 12 to 13, a side view and an end structure of a temporary beam 12 according to the present invention are shown.
The invention provides an embodiment of a supporting device of a spanning system without a spanning frame for power transmission line construction, which comprises the following components: two support device bodies 14;
the two supporting device bodies 14 are symmetrically arranged at two ends of the cross arm of the transmission tower;
the supporting device body includes: the base is fixed at the end part of the cross arm of the transmission tower, and the temporary cross beam 12 is connected with the base through the connecting piece;
the length of the temporary beam 12 is 3 m-5 m.
In the embodiment of the present invention, the temporary cross member 12 is a steel holding pole. Each temporary beam 12 is combined into a length of 3m to 5m by two sections of □ 400 or □ 500 of 1.5m to 2.5m, each section preferably being 2.5 m. Each temporary beam is preferably connected using 6.8 levels of M16. The two supporting device bodies comprise two temporary beams 12, and the total length of the two temporary beams 12 is 6m to 10m, preferably 10 m. The temporary cross beam 12 provides a hard support for the carrier cable and ensures that 3 or 4 carrier cables can keep a specified distance after the blocking, ensuring that the blocking width can cover the maximum swing width of the power line in the process of erecting the power line.
As shown in fig. 1, when the temporary beam 12 is installed, the steel wire ropes are respectively connected with the ends of the upper layer of cross arm and the temporary beam 12, the temporary beam 12 is suspended at the base and the connecting piece, i.e., the lower layer of cross arm, and then the temporary beam is sequentially installed with the connecting piece and the base. The setting of base can provide the stress point for interim crossbeam. The supporting device does not change the original design stress structure, and does not need to drill holes on the tower during installation.
According to the embodiment of the invention, the supporting device body is arranged at the end part of the cross arm of the power transmission tower, so that the length of the temporary cross beam 12 can be properly shortened from 35M to 3M-5M, the problem of overlarge bending moment M generated on the temporary cross beam 12 under various working conditions such as a safe paying-off state, an accident dynamic state and an accident is solved, the stress state of the temporary cross beam 12 hung on the tower is effectively improved, the connection stability of the cross beam and the temporary cross beam 12 is improved, the temporary cross beam 12 is convenient to install and remove due to the arrangement of the base and the connecting piece, the unstable state of the temporary cross beam 12 with the length of 35M in the installation and removal processes is avoided, and the construction risk is reduced. Meanwhile, the temporary cross beam 12 is shortened, so that the weight of construction tools can be reduced, the construction efficiency is improved, and the power line power failure time and the highway road sealing time are effectively reduced.
Referring to fig. 4 to 6, three connection structures of the base and the main angle steel side plate 13 of the cross arm of the transmission tower according to the embodiment of the present invention are schematically shown.
Referring to fig. 7 to 9, three structural diagrams of the connecting member according to the embodiment of the present invention are shown.
Referring to fig. 10 to 11, a side view and a front view of the first ear plate 9 according to the embodiment of the present invention are provided.
Referring to fig. 14, a schematic view of a connection structure between a hanging plate 15 and a hanging wire hole 16 according to an embodiment of the present invention is provided.
In another embodiment of the supporting device of the spanning system without the spanning frame for the power transmission line construction, a hanging plate 15 is arranged at one end of the temporary cross beam, which is far away from the connecting piece;
the hanging plate 15 is provided with a hanging hole 16.
As shown in fig. 1 and 14, in the embodiment of the present invention, one end of the steel wire rope is fixed behind the wire hanging hole 16 at the outer end of the temporary beam 12, and the other end is fixed at the end of the upper layer of cross arm, so that the temporary beam is hung at the lower cross arm, the temporary beam is in a horizontal state, the stress structure at the end of the temporary beam is also improved, and the steel wire rope binding on the temporary beam can be avoided.
In the embodiment of the invention, the number of the wire hanging holes 16 is multiple, and the wire hanging holes are used for hanging the bearing rope, fixing the temporary cross beam floor pull wire and the like. The hanging plate 15 is also provided with a plurality of bolt holes for fixing the hanging plate 15 to the temporary cross beam.
In another embodiment of the present invention, the supporting device of the spanning system without the spanning frame for the power transmission line construction comprises: yoke plate 8 and first otic placode 9, the first end of first otic placode 9 is fixed on the base, and the second end is fixed on yoke plate 8, and yoke plate 8 deviates from the one side of first otic placode 9 and is connected with interim crossbeam 12.
The temporary cross beam 12 is fixed in a steel wire rope binding mode, so that the temporary cross beam 12 on each side is only stressed by 2 points of 1 surface and the tower body, the stress of the surface is actually in a point contact stress state, and the fixation is unstable. In the embodiment of the invention, one surface of the yoke plate 8, which is far away from the first ear plate 9, is connected with the temporary cross beam 12, so that the stress state of the point contact between the original temporary cross beam 12 and the tower is changed into the stress state of the truss structure, the temporary cross beam 12 is more firmly fixed, and the construction safety is ensured.
In the embodiment of the invention, the yoke plate 8 and the temporary cross beam 12 are connected through bolts. Four angles of yoke plate 8 are provided with a plurality of general bolt holes that are used for being connected the usefulness with interim crossbeam 12, and the setting of general bolt hole can realize that the cross arm is connected with the steel of two kinds of specifications and embraces the pole, increases the variety that the steel was embraced the pole and is selected. As shown in fig. 7, 8M 16 bolt holes are respectively arranged at four corners of the yoke plate for connecting with a square steel holding rod of 500 × 500mm or 400 × 400 mm.
In another embodiment of the present invention, the base of the supporting device of the spanning system without the spanning frame for power transmission line construction comprises: first mainboard 1, first splint 2, second splint and scute, first splint 2 and second splint set up on first mainboard 1, and are fixed in the both sides of the curb plate of the main angle steel of transmission tower cross arm, and the scute setting is on first mainboard 1, and is located the offside of first splint 2 and/or second splint.
It should be noted that, in the prior art, two main angle steels exist at the end of the cross arm of the transmission tower, the side plates of the two main angle steels are fixed together by bolts, and the two main angle steel side plates 13 are provided with two bolt holes and two bolts correspondingly.
In the embodiment of the invention, the first main plate is a main stress plate, and is preferably a Q345-12 x 330 large steel plate with the length of 940 mm. The first clamping plate 2 and the second clamping plate are welded on the left side and the right side of the longitudinal axis direction of the first main plate 1, and the first clamping plate 2 and the second clamping plate are fixed on the two sides of the main angle steel side plate 13, so that the base is fixed on the cross arm.
In another embodiment of the supporting device of the spanning-rack-free spanning system for power transmission line construction, provided by the invention, the angle plate comprises a first angle plate 4 and a second angle plate 5, and a first side plate of the first angle plate 4 and a first side plate of the second angle plate 5 are fixed on the first main plate 1;
the first end of the first ear panel 9 is secured between the second side panel of the first corner panel 4 and the second side panel of the second corner panel 5.
In the embodiment of the present invention, the angle plate is preferably a 60mm large angle. The angle plate is connected with the first main plate through bolts.
A reinforcing plate 11 is arranged between the first side plate of the first gusset plate 4 and the second side plate of the first gusset plate 4. In the embodiment of the invention, the number of the reinforcing plates 11 is 2, the reinforcing plates 11 and the first side plate and the second side plate form an included angle of 90 degrees, and the reinforcing plates 11 are welded with the first side plate and the second side plate.
A reinforcing plate 11 is arranged between the first side plate of the second angle plate 5 and the second side plate of the second angle plate 5, and the arrangement and connection mode of the reinforcing plate are the same as those of the reinforcing plate arranged on the first angle plate 4, which is not described herein again.
In another embodiment of the supporting device of the spanning-frame-free spanning system for power transmission line construction, the first clamping plate 2 and the second clamping plate are both provided with through holes, and the through holes are communicated with bolt holes of side plates of main angle steels of the cross arm of a power transmission tower.
In the embodiment of the invention, through holes for installing bolts on main angle steel of the cross arm of the transmission tower are reserved on the first clamping plate 2 and the second clamping plate, and the bolts are matched with nuts to further fix the first clamping plate 2, the second clamping plate and the main angle steel side plate 13.
In another embodiment of the supporting device of the power transmission line construction spanning system without the spanning frame, the angle plate further comprises: a third corner panel 6 and a fourth corner panel 7;
a first side plate of the third corner plate 6 and a first side plate of the fourth corner plate 7 are fixed on the first main plate;
the connector further comprises a second ear panel 10, a first end of the second ear panel 10 being secured between the second side panel of the third corner panel 6 and the second side panel of the fourth corner panel 7.
In the embodiment of the invention, the support formed by the third angle plate 6 and the fourth angle plate 7 is arranged symmetrically with the support formed by the first angle plate 4 and the second angle plate 5. The third corner panel 6 and the fourth corner panel 7 are each welded with 2 reinforcement panels 11 at the same positions as the first corner panel 4 and the second corner panel 5.
In another embodiment of the supporting device of the power transmission line construction spanning-free system, the first end of the first ear plate 9 is hinged with the second side plate of the first corner plate 4 and the second side plate of the second corner plate 5;
a first end of the second ear panel 10 is hingedly connected to the second side panel of the third corner panel 6 and the second side panel of the fourth corner panel 7.
In the embodiment of the present invention, the first end of the first ear plate 9, the second side plate of the first corner plate 4, and the second side plate of the second corner plate 5 are all provided with pin shaft holes for placing a pin shaft, so that the first end of the first ear plate 9, the second side plate of the first corner plate 4, and the second side plate of the second corner plate 5 are hinged. The same is true of the method for hinging the first end of the second ear panel 10 to the second side panel of the third corner panel 6 and the fourth corner panel 7, which will not be described in detail herein.
In the embodiment of the invention, the pin shaft is a pin shaft M30 multiplied by 120 made of 45# steel.
In the embodiment of the invention, as the first lug plate 9 and the second lug plate 10 are hinged with the base, the temporary cross beam 12 is in place on the cross arm, and the base swings along the direction of the cross arm as a fulcrum, so that the temporary cross beam 12 is prevented from largely swinging forwards and backwards when in place, and the construction stability and safety are improved.
In another embodiment of the supporting device of the spanning system without the spanning frame for power transmission line construction provided by the invention, the base further comprises: the third clamping plate 3 and the fourth clamping plate are arranged on the first main plate;
the third clamping plate 3 and the fourth clamping plate are fixed on two sides of a main angle steel side plate 13 of the cross arm of the transmission tower.
In the embodiment of the invention, the first clamping plate 2 and the second clamping plate are symmetrically arranged, and the third clamping plate 3 and the fourth clamping plate are symmetrically arranged. The third clamping plate 3 and the fourth clamping plate are welded with the first main plate 1. The quantity of first splint 2 is two, and the quantity of third splint 3 is two, and two third splint 3 set up in the outside of two first splint 2, all are provided with reinforcing plate 11 between third splint 3 and fourth splint and the first mainboard 1, and this reinforcing plate 11 sets up and the reinforcing plate 11 between the connected mode and first splint 2 and the first mainboard 1, and this no longer gives details here.
In another embodiment of the supporting device of the spanning-frame-free spanning system for power transmission line construction provided by the invention, a reinforcing plate 11 is arranged between the first clamping plate 2 and the first main plate 1.
In the embodiment of the invention, the reinforcing plate 11 and the first clamping plate 2 and the second clamping plate form an included angle of 90 degrees, and the reinforcing plate 11 is welded with the first clamping plate 2 and the second clamping plate.
In another embodiment of the supporting device of the spanning-frame-free spanning system for power transmission line construction provided by the invention, a reinforcing plate 11 is arranged between the connecting plate 8 and the first lug plate 9 and the second lug plate 10.
In the embodiment of the present invention, the reinforcing plate 11 is welded to the yoke plate 8, the first lug plate 9 and the second lug plate 10.
In the embodiment of the invention, the specific steps of installing the supporting device of the power transmission line construction non-crossing system on a tower are as follows:
the first step is as follows: a base for fixing the temporary cross beam is arranged on the lower cross beam; at the same time, the connectors and temporary beams 12 are assembled on the ground.
The second step is that: after a hoisting tackle is arranged at the end part of the upper-layer cross arm and the tower body of the upper-layer cross arm, one end of a steel wire rope for hoisting is bound at the outer end part of the temporary cross beam 12, and the other end of the steel wire rope is connected to power equipment.
The third step: starting power equipment, pulling the steel wire rope to lift the temporary cross beam 12, hoisting (lifting) the temporary cross beam to a position to be installed (base), and stopping the power equipment.
The fourth step: connecting the connecting piece with the base of the temporary cross beam 12 by using M30 multiplied by 120 pin shafts; meanwhile, one end of another steel wire rope is fixed at the rear of the hanging wire hole 16 at the outer end part of the temporary cross beam, and the other end is fixed at the end part of the cross beam at the upper layer.
The fifth step: and slowly loosening the power equipment to enable the temporary cross beam 12 to be in a horizontal state. The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A supporting device of a spanning system without a spanning frame for power transmission line construction is characterized by comprising: two support device bodies;
the two supporting device bodies are symmetrically arranged at two ends of the cross arm of the transmission tower;
the supporting device body includes: the base is fixed at the end part of a cross arm of a transmission tower, and the temporary cross beam is connected with the base through the connecting piece;
the length of the temporary cross beam is 3-5 m;
the base includes: the angle plate is arranged on the first main plate and located on the opposite side of the first clamping plate and the second clamping plate.
2. The support device of claim 1, wherein the connector comprises: yoke plate and first otic placode, the first end of first otic placode is fixed on the base, the second end is fixed on the yoke plate, the yoke plate deviates from the one side of first otic placode with interim crossbeam is connected.
3. The support apparatus of claim 2 wherein the gusset comprises a first gusset and a second gusset, a first side panel of the first gusset and a first side panel of the second gusset being secured to the first main panel;
the first end of the first ear panel is secured between the second side panel of the first gusset panel and the second side panel of the second gusset panel.
4. The supporting device as claimed in claim 1, wherein the first clamping plate and the second clamping plate are provided with through holes, and the through holes are communicated with bolt holes of side plates of main angle steels of the transmission tower cross arm.
5. The support apparatus of claim 3, wherein the gusset further comprises: a third corner panel and a fourth corner panel;
the first side plate of the third corner plate and the first side plate of the fourth corner plate are fixed on the first main plate;
the connecting piece further comprises a second ear plate, and the first end of the second ear plate is fixed between the second side plate of the third corner plate and the second side plate of the fourth corner plate.
6. The support apparatus according to claim 5 wherein a first end of the first ear panel is hingedly connected to the second side panel of the first corner panel and the second side panel of the second corner panel;
the first end of the second ear panel is hinged to the second side panel of the third corner panel and the second side panel of the fourth corner panel.
7. The support device of claim 1, wherein the base further comprises: the third clamping plate and the fourth clamping plate are arranged on the first main plate;
the third clamping plate and the fourth clamping plate are fixed on two sides of a side plate of a main angle steel of the transmission tower cross arm.
8. The support apparatus of claim 1 wherein a reinforcement plate is disposed between the first clamp plate and the first main plate.
9. The supporting device of claim 1, wherein a hanging plate is arranged at one end of the temporary cross beam, which is far away from the connecting piece;
the hanging plate is provided with a hanging hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010669040.0A CN111779348B (en) | 2020-07-13 | 2020-07-13 | Supporting device of crossing system without crossing frame for power transmission line construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010669040.0A CN111779348B (en) | 2020-07-13 | 2020-07-13 | Supporting device of crossing system without crossing frame for power transmission line construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111779348A CN111779348A (en) | 2020-10-16 |
| CN111779348B true CN111779348B (en) | 2022-05-27 |
Family
ID=72768410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010669040.0A Active CN111779348B (en) | 2020-07-13 | 2020-07-13 | Supporting device of crossing system without crossing frame for power transmission line construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111779348B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779348B (en) * | 2020-07-13 | 2022-05-27 | 广东电网能源发展有限公司 | Supporting device of crossing system without crossing frame for power transmission line construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002357017A (en) * | 2001-05-31 | 2002-12-13 | Tokyo Electric Power Co Inc:The | Steel tower |
| CN204691378U (en) * | 2015-02-09 | 2015-10-07 | 江苏神马电力股份有限公司 | End fixing piece for composite cross arm |
| CN207098456U (en) * | 2017-06-30 | 2018-03-13 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of crossover tower auxiliary cross-arm block component for being used to live across operation |
| CN109057508A (en) * | 2018-10-12 | 2018-12-21 | 广东电网有限责任公司 | A kind of attachment device for herringbone holding pole bottom |
| CN111779348A (en) * | 2020-07-13 | 2020-10-16 | 广东电网能源发展有限公司 | Supporting device of crossing system without crossing frame for power transmission line construction |
-
2020
- 2020-07-13 CN CN202010669040.0A patent/CN111779348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002357017A (en) * | 2001-05-31 | 2002-12-13 | Tokyo Electric Power Co Inc:The | Steel tower |
| CN204691378U (en) * | 2015-02-09 | 2015-10-07 | 江苏神马电力股份有限公司 | End fixing piece for composite cross arm |
| CN207098456U (en) * | 2017-06-30 | 2018-03-13 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of crossover tower auxiliary cross-arm block component for being used to live across operation |
| CN109057508A (en) * | 2018-10-12 | 2018-12-21 | 广东电网有限责任公司 | A kind of attachment device for herringbone holding pole bottom |
| CN111779348A (en) * | 2020-07-13 | 2020-10-16 | 广东电网能源发展有限公司 | Supporting device of crossing system without crossing frame for power transmission line construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111779348A (en) | 2020-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4458102A (en) | Transmission line composite beam suspension assembly | |
| CN111779348B (en) | Supporting device of crossing system without crossing frame for power transmission line construction | |
| CN114314323A (en) | Prefabricated part lifting appliance and lifting deviation rectifying method | |
| CN107419665B (en) | Large-span steel beam hoisting sling and steel beam hoisting method thereof | |
| CN111734202B (en) | Supporting base of fixed no-crossing-frame crossing system of transmission tower cross arm | |
| CN110112681B (en) | Modular cable hoist and mount lays auxiliary device | |
| US9714520B1 (en) | Direct anchorage termination for pole reinforcement | |
| CN111218986A (en) | Fixing structure and mounting method for steel beam and connecting lug plate | |
| CN101670988A (en) | Hoisting tool for electric distribution network overhead wire | |
| CN207588351U (en) | A kind of strain tower of transmission line replaces cross-arm main material stressing device | |
| CN216109881U (en) | High-voltage line protection device | |
| CN201825635U (en) | Hoisting structure of power station boiler | |
| CN112664034B (en) | Integral installation method of wind power generation tower | |
| CN210505201U (en) | Equipment for hoisting reinforcing steel bars in batches | |
| CN110965475B (en) | Installation method of steel frame beam segment with main cross beam in span and steel frame beam | |
| CN109516390B (en) | Flat-head tower crane convenient for manual carrying and installation and field installation method | |
| CN211898916U (en) | Fixing structure of steel beam and connecting lug plate | |
| CN111622510A (en) | Installation method of ultra-large steel structure | |
| CN111794557A (en) | Bracket for renovating and transforming large-scale building concrete roof and roof dismantling method thereof | |
| GB2430016A (en) | Four-to-three connector for replacing overhead cables | |
| CN209872201U (en) | Hoisting equipment for bridge construction | |
| CN218415674U (en) | Steel truss structure capable of laying power pipeline | |
| CN214884355U (en) | A consolidate truss device for steel mesh frame hoist and mount point | |
| CN109231003A (en) | A kind of method of deduster displacement installation | |
| CN108750916B (en) | Hoisting equipment for electric dust removal anode module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |