CN105002921A - Steel pipe pole for electric transmission line - Google Patents
Steel pipe pole for electric transmission line Download PDFInfo
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- CN105002921A CN105002921A CN201510432108.2A CN201510432108A CN105002921A CN 105002921 A CN105002921 A CN 105002921A CN 201510432108 A CN201510432108 A CN 201510432108A CN 105002921 A CN105002921 A CN 105002921A
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Abstract
The invention discloses a steel pipe pole for an electric transmission line. The steel pipe pole comprises a steel pipe pole body, connecting flanges and a foundation. The foundation comprises concrete and a framework inside the concrete. The framework comprises a spiral bar, main reinforcement bars and steel rings. The main reinforcement bars are arranged on the edge of the spiral bar. The steel rings are arranged at the upper ends of the main reinforcement bars. The connecting flanges comprise the flange A and the flange B. The flange A is connected with the steel pipe pole body. The flange B is connected with the upper portions of the steel rings. The flange A and the flange B are connected through bolts. Concrete pouring is adopted for the foundation of the steel pipe pole; compared with a traditional steel foundation, the cost is greatly reduced, and the using period is prolonged by more than one time. The flange A and the flange B are flexibly connected, flexible flange connection needs no stiffening rib, and therefore many installation steps are omitted on the condition of ensuring connection safety. Influences of welding on a pole tower are reduced to the lowest, and therefore constructors can control the quality of the pole tower more accurately.
Description
Technical field
The present invention relates to electric power line pole tower technical field, be specifically related to a kind of steel pipe pole used for transmission line.
Background technology
In recent years, along with advancing by leaps and bounds of power technology, power industry also becomes one of whole world industry with the fastest developing speed.At home, because country is to the attention of power domain, and the needs of rapid economic development, the electric force pole tower industry of China also remains swift and violent growth trend always, various electric power facility and power equipment can not meet the needs of the growing cultural life of people, the particularly quantity of electric force pole tower critical shortage, still it is not enough or even without the available situation of electricity to there is supply of electric power in a lot of area, but, the construction of electric force pole tower is not easy, particularly in remote mountain area, rain frequently area and continue longer area severe winter, because the curing condition of concrete foundation does not allow with maintenance durations longer, cause the significant delay of electric force pole tower construction speed.More seriously strong wind weather or the rainy day more maximum overturning moment for steel pipe pole require higher, and traditional steel pipe pole basis needs to select relatively large ability to meet, and cost is too high.
Traditional steel pipe pole basis adopts steel piece mostly, but want to arrange the steel pipe pile up to tens meters, the length on basis generally reaches more than four meters, width more than half meter, although the inside on basis can be middle control structure, whole basis also needs the steel of at substantial, cost increases greatly, and steel pipe pile foundation adopts steel piece also to need to consider corrosion-resistant problem, iron and steel becomes iron oxide phenomenon by environmental activity is called corrosion, steel pipe pile foundation imbeds ground, a large amount of moisture and air can be contacted, therefore anticorrosion is a great problem, greatly limit the development of steel steel pipe pile.Occur that some concreting steel pipe pole bases are to build steel pipe pole now, cost reduces greatly, the maximum overturning moment of concrete foundation is lower slightly, comparatively inconvenience is used at strong wind and rainy region, need to make very dark basis, and current steel pipe pole basis adopts rigid flange to be connected with steel pipe pole body substantially, there is weld seam too much, easily welding deformation occurs; Welding capacity is excessive, and welding residual stress is difficult to estimate, impact welding and product quality, and the problem such as production and processing efficiency is lower, also greatly govern the development on concrete steel pipe bar basis.
Publication number is that the utility model of 202737117U provides a kind of steel pipe pole castinplace pile ground device, it comprises reinforcing cage, it is characterized in that stone bolt welds with reinforcing cage, overlap joint area is not less than the section area of stone bolt, connects into electric path between each component.This utility model refer to the steel pipe pole basis of concreting, but mainly solves castinplace pile ground resistance problem, and employing is cast in situs, and the engineering time is longer, uses inconvenience.
Summary of the invention
Problem to be solved by this invention is to provide a kind of steel pipe pole used for transmission line, and steel pipe pole basis adopts concreting, and more traditional steel base cost reduces many, and also improves more than 1 times on the cycle used.
A kind of steel pipe pole used for transmission line, comprise steel pipe pole body, adpting flange and basis, described basis comprises the framework of concrete and described inside concrete, described framework comprises spiral bar, main muscle and steel ring, and described spiral bar edge arranges described main muscle, and described main muscle upper end arranges described steel ring, described adpting flange comprises flange A and flange B, described flange A is connected with described steel pipe pole body, and described flange B is connected with described steel ring top, and described flange A and described flange B is bolted.
Further, described flange A and described flange B are that flexible flange is connected.
Further, described basis arranges stabilizing mechanism.
Further, described stabilizing mechanism is arranged on described basic internal, described stabilizing mechanism comprise be arranged in parallel with described main muscle press down steel pipe, described pressing down on steel pipe arranges stull steel pipe, the two ends of described stull steel pipe extend to described surface of base, described in press down steel pipe and described stull steel pipe is connected, described in press down in steel pipe down-pressed pole be set, arrange needling in described stull steel pipe, described down-pressed pole is moving down in process described needling generation transverse shear stress power.
Further, described down-pressed pole lower end is conical, and the center, one end that described needling and described down-pressed pole can contact arranges arc cell body, and the other end of described needling is cross.
Further, the rear surface of described down-pressed pole arranges lubricating layer.
Further, described stull steel pipe internal-surface arranges lubricating layer.
Further, described lubricating layer adopts graphite linings.
Further, the surface of described needling arranges anticorrosive paint.
Preparation method of the present invention comprises the steps: first to be welded by the unit of framework, then carries out concreting, carries out the welding of flange after waiting hardening of concrete, prepared by basis.If arrange stabilizing mechanism in basis, then before concreting, stabilizing mechanism being arranged on framework, just stabilizing mechanism can being arranged on basic internal when building.According to prefabricated, in factory building, basis is built, then construct in the scene that is transported to.
Flange A and flange B adopt flexible flange to be connected, the bar section of steel pipe pole body connects also employing flexible flange and connects, rigid flange has the advantages such as rigidity is large, bearing capacity is large, flange thickness is thin, but there is too much weld seam, the shortcoming of easy generation welding deformation, so the application adopts flexible flange to connect.The flange thickness that the thickness of flange connects compared with rigid flange is large, flange need not weld stiffening rib, flexible flange is under the effect of axial tension and moment of flexure, tension bolt place opens flange inner edge, outer rim holds out against, two pieces of flange outward flanges have mutual top power to produce, and bolt strainedly consist of lever principle to transmit tube wall, flange, bolt three.Flexible flange connects and does not need stiffening rib, and save many installation steps when ensureing connection safety, the impact of welding for shaft tower is down to minimum, makes constructor more accurate for the quality control of shaft tower.
When using the application basic, according to the method for direct burial, then basis completes factory building is prefabricated, when first basis being put into the hole, hole dug, first down-pressed pole and needling put into stabilizing mechanism, needling is played a supporting role to down-pressed pole in stull steel pipe, down-pressed pole upper end can exceed basic upper end, and basis regulates the gradient of flange face after putting into the hole, hole dug, and ensures that flange face is horizontally disposed with, then start reclaimed soil and compacting, basis has been imbedded.Finally adopting the mode of hammering or jack to be pounded by down-pressed pole presses down in steel pipe, needling can outwards promote by down-pressed pole, making a part for needling stretch out basis inserts in the earth around of basis, increase the contact area of basis and soil, increase the earth-grasping force degree on basis, the maximum overturning moment on basis is improved greatly.If basis is built at the construction field (site), then first framework and stabilizing mechanism are put into hole hole, then concreting, finally stabilizing mechanism is operated.
The concrete that what concrete adopted is rubble, cement are obtained, the concrete initial setting time is very short, but want concrete by the time to harden completely, more than the time needing two weeks, in traditional construction or use steel basis or be exactly build at the scene to make concrete foundation, the former is easily corroded and cost is higher, the latter's engineering time is oversize, causes the time of engineering to spend more.The basis of the application can be prefabricated in factory building, with vehicle, prefabricated basis is pulled to construction plant when needing to stand up steel pipe pole and carries out direct burial installation, the adjustment that the cost of whole time comprises flange balance spends at most several hours just can be carried out steel pipe pole cup and be connected with basis, greatly accelerate the speed of standing up of steel pipe pole, make the speed of integral construction improve more than 10 times.
Basis is not built at the scene and carries out the prefabricated maximal bending moment that can reduce pole and tower foundation to a certain extent, and its reason is that the joint face frictional force on basis with soil reduces, and basic prefabricated meeting causes surface flatness higher.The application basis can be selected prefabricated or build at the scene, and specifically depending on the progress of engineering, basis adds stabilizing mechanism, is intended to strengthen basis and the contact area of soil, increases frictional force between the two.The shape of stabilizing mechanism and structure can be a variety of, as basic arranged outside annular steel disc, delavay raspberry herb, or extend stabiliser bar, this structure can be affect at basic landfill at that time, soil is backfilled inconvenient, more seriously by based on the impact of external device, can cause reclaimed soil can not compacting, affect the flintiness of earth itself, cause the insecure of basis.
The stabilizing mechanism principle of the application adopts after basis imbeds ground, stretches into soil needling is stretched out basis, increase basis and the contact area of soil on the one hand, make soil further compacting on the other hand.Stabilizing mechanism is by pressing down steel pipe and stull steel pipe is arranged on basic internal, arranges two needlings in every root stull steel pipe, and needling outwards ejects moving down in process by down-pressed pole, realizes stable function.Pressing down steel pipe is one, and stull steel pipe can arrange multiple, increases the needling quantity stretched in soil, increases the friction of basis and soil.In order to ensure that needling can eject by down-pressed pole laterally, the lower end of down-pressed pole is set to taper shape by the application's optimal selection, corresponding needling arranges arc cell body with the center, one end that down-pressed pole can contact, like this most at first, two needlings in stull steel pipe are docking together, the position of docking defines the force hole of similar circle by two deep-slotted chip breaker bodies, down-pressed pole is in the process moved down, first conical termination is stretched in arc cell body, in motion subsequently, just downward power can be transformed a part of lateral thrust become needling, realize the function ejected by needling.
For the ease of moving down of down-pressed pole and moving laterally of needling, lubricating layer is set at the rear surface of down-pressed pole, reduces the friction between down-pressed pole and needling, be convenient to down-pressed pole and move downward needling is ejected; Stull steel pipe internal-surface arranges lubricating layer, is convenient to needling outwards movement.One end that needling stretches into soil is cross, the i.e. shape that intersects vertically of two steel plates, its advantage is that being convenient to needling stretches in soil, and the Moment of shaft tower on needling time be upwards or downward power, criss-cross design is more sufficient than circular or square design support degree.The dynamics that needling will play is larger, therefore the material of needling is steel piece, here need to do preservative treatment to needling, can at its surface smear anti-corrosion material, anti-corrosion material uses epoxy coating and polyurethanes paint, epoxy coating has good decay resistance, particularly alkali resistance, and have good abrasion resistance, paint film has good elasticity and hardness, shrinkage factor is lower, and serviceability temperature can be reached for 90 ~ 100 DEG C; The highest heat resistance of polyurethanes paint is 155 DEG C, has good chemical resistance, oil resistivity, abrasion resistance and adhesive power, and paint film toughness and electrical insulating property are all better.Brush one deck polyurethanes paint on present needling in use, brush one deck epoxy coating again, can ensure that needling can not be scratched by earth when stretching into soil by its synergy high wearable of epoxy coating and the highly corrosion resistant of polyurethanes paint, perfectly can cover needling surface, ensure that needling can not be corroded at underground and bending fracture.
Lubricating layer adopts graphite linings, and graphite linings can select graphited oil, and graphited oil is by inorganic thickening agent multiviscosisty synthetic ester lubricant, and be added with ultra tiny graphite powder, graphited oil that the additive such as anti-oxidant, anticorrosive is refined.This ultra high temperature lubricating grease more than 200 DEG C during high temperature base oil slowly volatilize; graphite can be attached to lubricated surface and form solid lubrication; be exclusively used in the lubrication of high temperature friction parts under heavy load/impact load or humidity/contaminated environment and bearing, rust resistance and corrosion resistance protection is to greatest extent provided.In the application, use the frictional force that can reduce between down-pressed pole and needling and between needling and stull steel pipe, stull steel pipe internal-surface also can be prevented to be corroded.
The invention has the beneficial effects as follows:
1, steel pipe pole basis adopts concreting, and more traditional steel base cost reduces many, and also improves more than 1 times on the cycle used, and is very applicable to promoting.
2, basis can complete prefabricated in factory building, can directly install by direct burial when constructing, just can be arranged on basis by steel pipe pole main body afterwards, more original concrete cast in situs construction technology improves more than 10 times on speed of application, greatly accelerates the construction speed of electric force pole tower.
If 3 bases are built at the scene, its maximum overturning moment can increase greatly, and regional at nor'wester and that south is rainy regional safety is higher, can support higher steel pipe pole body, provides good support for transmission line of electricity omits establishing of environment area in evil.
4, the stabilizing mechanism arranged in concrete foundation, can stretch into inside, soil after ground is imbedded on basis, increases the contact area of basis and soil, increases the maximum overturning moment on basis, makes the performance of shaft tower more superior.
5, steel pipe pole body and basis adopt flexible flange to be connected, and do not need extra soldered stiffening rib, save many steps, and reduce welding for the impact sending out Flange joint, and not easily welding deformation occurs, the control for steel pipe pole total quality is more accurate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of steel pipe pole stake formula prefabricated foundation of the present invention;
Fig. 2 is the structural representation of stabilizing mechanism of the present invention;
Fig. 3 is the structural representation of needling of the present invention.
Detailed description of the invention
Embodiment one
As shown in Figure 1: the invention provides a kind of steel pipe pole used for transmission line, comprise steel pipe pole body 15, adpting flange and basis 1, described basic 1 framework comprising concrete 2 and described inside concrete, described framework comprises spiral bar 6, main muscle 3 and steel ring 4, described spiral bar 6 edge arranges described main muscle 3, described main muscle 3 upper end arranges described steel ring 4, described adpting flange comprises flange A7 and flange B8, described flange A7 is connected with described steel pipe pole body 15, described flange B8 is connected with described steel ring 4 top, described flange A7 is connected by bolt 5 with described flange B8.
Described flange A and described flange B are that flexible flange is connected.
Preparation method of the present invention comprises the steps: first to be welded by the unit of framework, then carries out concreting, carries out the welding of flange after waiting hardening of concrete, prepared by basis.If arrange stabilizing mechanism in basis, then before concreting, stabilizing mechanism being arranged on framework, just stabilizing mechanism can being arranged on basic internal when building.According to prefabricated, in factory building, basis is built, then construct in the scene that is transported to.Basis is first imbedded by concrete construction method, then is erected by steel pipe pole body and connected by flange.
When using the application basic, according to the method for direct burial, then basis completes factory building is prefabricated, when first basis being put into the hole, hole dug, first down-pressed pole and needling put into stabilizing mechanism, needling is played a supporting role to down-pressed pole in stull steel pipe, down-pressed pole upper end can exceed basic upper end, and basis regulates the gradient of flange face after putting into the hole, hole dug, and ensures that flange face is horizontally disposed with, then start reclaimed soil and compacting, basis has been imbedded.Finally adopting the mode of hammering or jack to be pounded by down-pressed pole presses down in steel pipe, needling can outwards promote by down-pressed pole, making a part for needling stretch out basis inserts in the earth around of basis, increase the contact area of basis and soil, increase the earth-grasping force degree on basis, the maximum overturning moment on basis is improved greatly.If basis is built at the construction field (site), then first framework and stabilizing mechanism are put into hole hole, then concreting, finally stabilizing mechanism is operated.
The concrete that what concrete adopted is rubble, cement are obtained, the concrete initial setting time is very short, but want concrete by the time to harden completely, more than the time needing two weeks, in traditional construction or use steel basis or be exactly build at the scene to make concrete foundation, the former is easily corroded and cost is higher, the latter's engineering time is oversize, causes the time of engineering to spend more.The basis of the application can be prefabricated in factory building, with vehicle, prefabricated basis is pulled to construction plant when needing to stand up steel pipe pole and carries out direct burial installation, the adjustment that the cost of whole time comprises flange balance spends at most several hours just can be carried out steel pipe pole cup and be connected with basis, greatly accelerate the speed of standing up of steel pipe pole, make the speed of integral construction improve more than 10 times.
Flange A and flange B adopt flexible flange to be connected, and rigid flange has the advantages such as rigidity is large, bearing capacity is large, flange thickness is thin, but has too much weld seam, the shortcoming of welding deformation easily occur, so the application adopts flexible flange to connect.The flange thickness that the thickness of flange connects compared with rigid flange is large, flange need not weld stiffening rib, flexible flange is under the effect of axial tension and moment of flexure, tension bolt place opens flange inner edge, outer rim holds out against, two pieces of flange outward flanges have mutual top power to produce, and bolt strainedly consist of lever principle to transmit tube wall, flange, bolt three.Flexible flange connects and does not need stiffening rib, and save many installation steps when ensureing connection safety, the impact of welding for shaft tower is down to minimum, makes constructor more accurate for the quality control of shaft tower.
Embodiment two
As Fig. 1, Fig. 2, shown in Fig. 3: present invention also offers a kind of steel pipe pole used for transmission line, comprise steel pipe pole body 15, adpting flange and basis 1, described basic 1 framework comprising concrete 2 and described inside concrete, described framework comprises spiral bar 6, main muscle 3 and steel ring 4, described spiral bar 6 edge arranges described main muscle 3, described main muscle 3 upper end arranges described steel ring 4, described adpting flange comprises flange A7 and flange B8, described flange A7 is connected with described steel pipe pole body 15, described flange B8 is connected with described steel ring 4 top, described flange A7 is connected by bolt 5 with described flange B8.
Further, described flange A7 and described flange B8 are that flexible flange is connected.
Further, stabilizing mechanism is set on described basic 1.
Further, described stabilizing mechanism is arranged on described basic 1 inside, described stabilizing mechanism comprise be arranged in parallel with described main muscle 3 press down steel pipe 9, described pressing down on steel pipe 9 arranges stull steel pipe 10, the two ends of described stull steel pipe 10 extend to described basic 1 surface, the described steel pipe 9 that presses down is connected with described stull steel pipe 10, described pressing down in steel pipe 9 arranges down-pressed pole 11, arrange needling 12 in described stull steel pipe 10, described down-pressed pole 11 produces transverse shear stress power to described needling 12 moving down in process.
Further, described down-pressed pole 11 lower end is conical, and the center, one end that described needling 12 can contact with described down-pressed pole 11 arranges arc cell body 14, and the other end of described needling 12 is cross.
Further, the rear surface of described down-pressed pole 11 arranges lubricating layer 13.
Further, described stull steel pipe 10 inner surface arranges lubricating layer 13.
Further, described lubricating layer 13 adopts graphite linings.
Further, the surface of described needling 12 arranges anticorrosive paint.
Preparation method of the present invention comprises the steps: first to be welded by the unit of framework, then carries out concreting, carries out the welding of flange after waiting hardening of concrete, prepared by basis.If arrange stabilizing mechanism in basis, then before concreting, stabilizing mechanism being arranged on framework, just stabilizing mechanism can being arranged on basic internal when building.According to prefabricated, in factory building, basis is built, then construct in the scene that is transported to.
The stabilizing mechanism principle of the application adopts after basis imbeds ground, stretches into soil needling is stretched out basis, increase basis and the contact area of soil on the one hand, make soil further compacting on the other hand.Stabilizing mechanism is by pressing down steel pipe and stull steel pipe is arranged on basic internal, arranges two needlings in every root stull steel pipe, and needling outwards ejects moving down in process by down-pressed pole, realizes stable function.Pressing down steel pipe is one, and stull steel pipe can arrange multiple, increases the needling quantity stretched in soil, increases the friction of basis and soil.In order to ensure that needling can eject by down-pressed pole laterally, the lower end of down-pressed pole is set to taper shape by the application's optimal selection, corresponding needling arranges arc cell body with the center, one end that down-pressed pole can contact, like this most at first, two needlings in stull steel pipe are docking together, the position of docking defines the force hole of similar circle by two deep-slotted chip breaker bodies, down-pressed pole is in the process moved down, first conical termination is stretched in arc cell body, in motion subsequently, just downward power can be transformed a part of lateral thrust become needling, realize the function ejected by needling.
For the ease of moving down of down-pressed pole and moving laterally of needling, lubricating layer is set at the rear surface of down-pressed pole, reduces the friction between down-pressed pole and needling, be convenient to down-pressed pole and move downward needling is ejected; Stull steel pipe internal-surface arranges lubricating layer, is convenient to needling outwards movement.One end that needling stretches into soil is cross, the i.e. shape that intersects vertically of two steel plates, its advantage is that being convenient to needling stretches in soil, and the Moment of shaft tower on needling time be upwards or downward power, criss-cross design is more sufficient than circular or square design support degree.The dynamics that needling will play is larger, therefore the material of needling is steel piece, here need to do preservative treatment to needling, can at its surface smear anti-corrosion material, anti-corrosion material uses epoxy coating and polyurethanes paint, epoxy coating has good decay resistance, particularly alkali resistance, and have good abrasion resistance, paint film has good elasticity and hardness, shrinkage factor is lower, and serviceability temperature can be reached for 90 ~ 100 DEG C; The highest heat resistance of polyurethanes paint is 155 DEG C, has good chemical resistance, oil resistivity, abrasion resistance and adhesive power, and paint film toughness and electrical insulating property are all better.Brush one deck polyurethanes paint on present needling in use, brush one deck epoxy coating again, can ensure that needling can not be scratched by earth when stretching into soil by its synergy high wearable of epoxy coating and the highly corrosion resistant of polyurethanes paint, perfectly can cover needling surface, ensure that needling can not be corroded at underground and bending fracture.
Lubricating layer adopts graphite linings, and graphite linings can select graphited oil, and graphited oil is by inorganic thickening agent multiviscosisty synthetic ester lubricant, and be added with ultra tiny graphite powder, graphited oil that the additive such as anti-oxidant, anticorrosive is refined.This ultra high temperature lubricating grease more than 200 DEG C during high temperature base oil slowly volatilize; graphite can be attached to lubricated surface and form solid lubrication; be exclusively used in the lubrication of high temperature friction parts under heavy load/impact load or humidity/contaminated environment and bearing, rust resistance and corrosion resistance protection is to greatest extent provided.In the application, use the frictional force that can reduce between down-pressed pole and needling and between needling and stull steel pipe, stull steel pipe internal-surface also can be prevented to be corroded.
Below the different model steel pipe pole underlying parameter of four kinds of embodiments of the present invention and the steel pipe pole of prior art are compared, four kinds of different embodiments are concrete cast in situs has stabilizing mechanism without stabilizing mechanism, concrete cast in situs, there is stabilizing mechanism on concrete prefabricated basis without stabilizing mechanism, concrete prefabricated basis.
Overturning moment refers to the moment of flexure that structure produces in architecture basics bottom surface under horizontal loads, when the overturning moment of structure is greater than the overturning or slip resistance analysis moment of flexure of structure, structure will be collapsed by overall collapse, and when arriving the numerical value that this can topple, be the maximum overturning moment on basis, be commonly used to the performance showing shaft tower.
Contrast with regard to the different steel pipe pole underlying parameters of right 40 meters, 35 meters, 30 meters below:
As can be seen from the above table, the maximum overturning moment of the application's steel pipe pole prefabricated foundation when there being stabilizing mechanism than steel base is large, and concrete foundation is higher than the basis of steel on service life, therefore the technology that the present invention is more traditional has very large progress, solve an electric force pole tower difficult problem for a long time, make transmission line construction speed and quality have huge raising.
Claims (9)
1. a steel pipe pole used for transmission line, comprise steel pipe pole body, adpting flange and basis, it is characterized in that: described basis comprises the framework of concrete and described inside concrete, described framework comprises spiral bar, main muscle and steel ring, described spiral bar edge arranges described main muscle, described main muscle upper end arranges described steel ring, described adpting flange comprises flange A and flange B, described flange A is connected with described steel pipe pole body, described flange B is connected with described steel ring top, and described flange A and described flange B is bolted.
2. steel pipe pole used for transmission line as claimed in claim 1, is characterized in that: described flange A and described flange B are that flexible flange is connected.
3. steel pipe pole used for transmission line as claimed in claim 1, is characterized in that: described basis arranges stabilizing mechanism.
4. steel pipe pole used for transmission line as claimed in claim 3, it is characterized in that: described stabilizing mechanism is arranged on described basic internal, described stabilizing mechanism comprise be arranged in parallel with described main muscle press down steel pipe, described pressing down on steel pipe arranges stull steel pipe, the two ends of described stull steel pipe extend to described surface of base, describedly press down steel pipe and described stull steel pipe is connected, described pressing down in steel pipe arranges down-pressed pole, arrange needling in described stull steel pipe, described down-pressed pole is moving down in process described needling generation transverse shear stress power.
5. steel pipe pole used for transmission line as claimed in claim 4, is characterized in that: described down-pressed pole lower end is for conical, and the center, one end that described needling and described down-pressed pole can contact arranges arc cell body, and the other end of described needling is cross.
6. steel pipe pole used for transmission line as claimed in claim 5, is characterized in that: the rear surface of described down-pressed pole arranges lubricating layer.
7. steel pipe pole used for transmission line as claimed in claim 4, is characterized in that: described stull steel pipe internal-surface arranges lubricating layer.
8. steel pipe pole used for transmission line as claimed in claims 6 or 7, is characterized in that: described lubricating layer adopts graphite linings.
9. steel pipe pole used for transmission line as claimed in claim 5, is characterized in that: the surface of described needling arranges anticorrosive paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510432108.2A CN105002921A (en) | 2015-07-22 | 2015-07-22 | Steel pipe pole for electric transmission line |
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| CN201510432108.2A CN105002921A (en) | 2015-07-22 | 2015-07-22 | Steel pipe pole for electric transmission line |
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| CN105002921A true CN105002921A (en) | 2015-10-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107100415A (en) * | 2017-05-05 | 2017-08-29 | 上海必立结构设计事务所有限公司 | A kind of multi-functional attachment means of putting more energy into of glass reinforced plastic inner cylinder |
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Application publication date: 20151028 |
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