CN201040692Y - Double horizontal arm grounding hold-pole - Google Patents
Double horizontal arm grounding hold-pole Download PDFInfo
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- CN201040692Y CN201040692Y CNU2007200851131U CN200720085113U CN201040692Y CN 201040692 Y CN201040692 Y CN 201040692Y CN U2007200851131 U CNU2007200851131 U CN U2007200851131U CN 200720085113 U CN200720085113 U CN 200720085113U CN 201040692 Y CN201040692 Y CN 201040692Y
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Abstract
A double flat arms ground holding pole belongs to a lift device which is used in high tower establishment. A pole body 2 comprises a plurality of standard joints 4 which are orderly overlapped, and upper and lower adjacent standard joints 4 are fixedly connected via a bolt, and external of the pole body 2 is provided with a wall adhering frame 11 which is sleeved on the standard joint 4, and the wall adhering frame 11 is connected to an external fixture 6 via a flexible connecting mechanism 7 for assembly workpieces, and a hydraulic lifting mechanism 5 is arranged on periphery of a basal portion of the pole body 2. The standard joint 4 is introduced from the ground so as to realize self lifting of the holding pole. A soft adhering wall of the periphery of the holding pole is connected to an iron tower, therefore having convenient dismounting and large accommodation amplitude, and the double flat arms can be folded upward and then is self descended with the pole body 2 as a whole. A base is connected to anchor bolts which are arranged on the foundation, which can be repeatedly used; and the whole machine has high safety, convenient operation and dismounting and high construction efficiency, which is especially suitable for use in establishment and construction of towers with large height such as a large-span tower or an ultra high pressure tower and also for use in hoisting and constructing operation of high building.
Description
Technical field
The utility model relates to the pole that group such as the crossing tower, extra high voltage line iron tower of a kind of hoisting device, particularly power engineering needs immediately, especially relates to a kind of structure improved two flat arm seat ground pole.
Background technology
The domestic lifting device that send the power transformation industry to be used to organize upright high tower mainly divides three kinds: inner suspension rocking arm pole, seat ground rocking arm pole and tower crane.Above instrument, in the construction of the upright high tower of group, all such and such restricted of ubiquity all can not be called desirable high tower special use lifting device.
Summary of the invention
The utility model mainly is the technical matters that solves the danger etc. of existing in prior technology pole aloft work; A kind of two flat arm seat ground pole with low aloft work risk is provided.
It is to solve existing in prior technology because the pole arm is removed inconvenience and jack-up system complexity that the utility model also has a purpose, operation inconvenience, the technical matters of inefficiency etc.; It is easy to provide a kind of pole head to remove, and jacking is convenient, the two flat arm seat ground pole that work efficiency is high.
It is to solve comparatively complexity of existing in prior technology structure that the utility model has a purpose again, and the pole attached wall is installed difficulty, and the problem that cost is high provides a kind of attached wall simple in structure, two flat arm seat ground pole easy for installation.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: two flat arm seats ground pole, comprise the shaft that is fixed on the base, top at shaft is provided with arm, described shaft comprises the standard knot that several superpose successively, be bolted to connection between two neighbouring standard knots, the outside of shaft is provided with the attached wall frame that is socketed on the standard knot outer wall, the attached wall frame is connected with the external stability thing through flexible linking device, be useful on the hydraulic lifting mechanism of the standard knot of packing in the base portion outer periphery of shaft, shaft also comprises an arm seat that is fixed on top, described arm seat is trapezoidal, be hinged with two arms in the bottom of arm seat symmetry, arm and shaft are perpendicular, are the level of state, and are provided with the arm drag-line between arm middle part and arm seat top.
The utility model adopts hydraulic lifting mechanism to substitute the assembly pulley lifting body of traditional pole, adopted hydraulic lifting mechanism has been placed ground, introduce standard knot from ground, from the scheme of bottom jacking pole, thereby reduce aloft work, reduced construction risk, improved the efficient of pole from jacking, simultaneously, will link to each other between shaft and the external stability thing by attached wall frame and flexible linking device, the group that adopts this mode to make pole be adapted to large-scale high tower is especially stood.
At above-mentioned two flat arm seat ground pole, described hydraulic lifting mechanism comprises a jacking frame that is fixed on the base, be fixed with oil cylinder on the jacking frame, the expansion link of described oil cylinder is connected with lifting beam, and lifting beam is provided with can the solid movable latch of corresponding pin with standard knot.Cylinder action is steady synchronously, and simple to operate, the effect height.
At above-mentioned two flat arm seat ground pole, described flexible linking device comprises connecting strap, and an end of connecting strap links to each other with the attached wall frame, and the other end links to each other with the external stability thing.
At above-mentioned two flat arm seat ground pole, described connecting strap comprises crimping steel anchor steel strand, one end of steel strand links to each other with the attached wall frame by shackle one, and the other end links to each other with an end of double hook by shackle two, and the other end of double hook links to each other with the external stability thing with shackle four by shackle three.Effectively raise the installation efficiency of attached wall frame, reduced tooling cost.
At above-mentioned two flat arm seat ground pole, described standard knot periphery is provided with vertical slide rail, is provided with the pulley that can slide up and down along vertical slide rail in the described attached wall frame.
At above-mentioned two flat arm seat ground pole, arm is truss-like inverted triangle cross section.Be convenient to arm like this and can upwards fold gathering.
Two flat arm seat ground pole above-mentioned is provided with swing type mechanism between described arm seat and the shaft, and arm seat is fixed on the top of swing type mechanism, and the lower end of swing type mechanism is fixed on the shaft top.Arm can be rotated on shaft.
At above-mentioned two flat arm seat ground pole, described arm is provided with the dolly that can slide on arm, and dolly is provided with and supports the pulley that promotes lifting rope and suspension hook.
At above-mentioned two flat arm seat ground pole, an end that promotes lifting rope on the described dolly is fixed on the arm root, its other end through dolly from the top of arm around to arm seat and downwards the standard knot guide wheel on shaft forward the outside to from shaft inside, hang elevator and link to each other with being arranged on ground master again, be provided with operator's station near hanging elevator main.
At above-mentioned two flat arm seat ground pole, described base is fixed on the basis by holding-down bolt.Adopt the base of this mode can repeated usage, actv. have been saved construction cost.
Therefore, the utlity model has following advantage: 1. adopt hydraulic ram to substitute assembly pulley, realize pole from jacking.Hydraulic ram is steadily action synchronously, and is simple to operate, the effect height.Introduce standard knot from ground, reduced the aloft work risk, improved the efficient of pole simultaneously from jacking.2. use fabricated soft attached wall gauge member, install simply, the pole good stability, tooling cost is low, and the length adjustment scope is big, the recycling rate of waterused height; 2. two arms are balance mutually, operation simultaneously, and two suspension hooks are parallel motion alone, also can rise and fall alone.Two arms can upwards fold gathering.Pole head after the gathering can not be subjected to the flat mouthful of less restriction of size in iron tower top, can be whole together smoothly from falling with pole self.Exempt two arms in high-altitude disintegration decline trouble, solved the difficult problem that the pole head is removed, reduced the aloft work risk, also improved the work efficiency that pole is removed greatly; 3. pole need not " embedded foundation joint " by base used specially seat ground.Holding-down bolt pre-buried on pole base and the basis links to each other, and can reuse, and has saved construction cost; 4. operator's station and master winch are arranged in ground, and the driver has reduced the aloft work risk at the ground centralized operation, and maintenance is convenient.5. entire machine design is reasonable, and volume is little, and is safe, simple in structure, easy and simple to handle, and easy accessibility is particularly suited for the construction construction of big height electric power tower such as large crossing tower or extra-high voltage iron tower, also can be used for the lifting construction operation of high-rise.
Description of drawings
Accompanying drawing 1 is the front view of a kind of structure of the utility model;
Accompanying drawing 2 is scheme drawings that hydraulic lifting mechanism 5 introduces standard knot 4 among Fig. 1;
Accompanying drawing 3 is scheme drawings of flexible linking device 7 among Fig. 1;
Accompanying drawing 4 is the mounting structure scheme drawings on base 1 and basis 22 among Fig. 1;
Accompanying drawing 5 is the scheme drawings after two arms 3 in the utility model fold;
Accompanying drawing 6 is the scheme of installations of overlooking of standard knot 4 of the present utility model.
Among the figure, base 1, shaft 2, arm 3, standard knot 4, hydraulic lifting mechanism 5, external stability thing 6, flexible linking device 7, jacking frame 8, oil cylinder 9, lifting beam 10, attached wall frame 11, connecting strap 12, vertical slide rail 13, pulley 14, shackle 1, shackle 2 152, shackle 3 153, shackle 4 154, double hook 16, arm seat 17, arm drag-line 18, dolly 19, suspension hook 20, holding-down bolt 21, basis 22, standard knot guide wheel 23, swing type mechanism 24, lifting lifting rope 25, operator's station 26, main elevator 27, the steel strand 28 of hanging.
The specific embodiment
Below by embodiment and accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, two flat arm seats ground pole, comprise the shaft 2 that is fixed on the base 1, on shaft 2, be provided with two horizontal hanging arms 3, shaft 2 comprises several standard knots that superposes successively 4, connects with bolt between two neighbouring standard knots 4, and the outside of shaft 2 is provided with the attached wall frame 11 that is socketed on standard knot 4 outer walls, attached wall frame 11 is connected with external stability thing 6 through flexible linking device 7, is useful on the hydraulic lifting mechanism 5 of the standard knot 4 of packing in the base portion outer periphery of shaft 2.External stability thing 6 can be arranged near high building or the building the shaft, and for the electric power tower group was upright, external stability thing 6 just was arranged on the pole periphery and is organizing upright iron tower.Shaft 2 also comprises an arm seat 17 that is fixed on top, and arm seat 17 is trapezoidal, in the lower hinge of arm seat 17 arm 3 is arranged, and arm 3 is truss-like inverted triangle cross section.Two arms 3 of symmetric arrangement are perpendicular with shaft 2, are the level of state, and are provided with arm drag-line 18 between arm 3 middle parts and arm seat 17 tops.Arm 3 is provided with the dolly 19 that can slide on arm 3, dolly 19 is provided with and supports the pulley that promotes lifting rope 25 and suspension hook 20.An end that promotes lifting rope 25 is fixed on the arm seat 17, its other end through dolly 19 from the top of arm 3 around to arm seat 17 and downwards the standard knot guide wheel 23 on shaft 2 forward the outside to from shaft 2 inside, hang elevator 27 and link to each other with being arranged on ground master again, be provided with operator's station 26 near hanging elevator 27 main.Be provided with swing type mechanism 24 between arm seat 17 and the shaft 2, arm seat 17 is fixed on the top of swing type mechanism 24, and the lower end of swing type mechanism 24 is fixed on shaft 2 tops.Swing type mechanism 24 can adopt the standard swing type mechanism on the elevator machinery.
Hydraulic lifting mechanism 7 comprises a jacking frame 8 that is fixed on the base 1, and described base 1 is fixed on the basis 22 by holding-down bolt 21.Be fixed with oil cylinder 9 on jacking frame 8, the expansion link of oil cylinder 9 is connected with lifting beam 10, and can drive lifting beam 10 and move up and down, lifting beam 10 be provided with can with the solid movable latch of standard knot 4 corresponding pins.After penetrating movable latch in the pin-and-hole on lifting beam 10 and standard knot 4, oil cylinder 9 upward movements can drive shaft 2 whole upward movements.At this moment can below shaft 2, send into the new standard knot 4 of a joint, and its and shaft 2 are locked integral body, 2 of the shafts standard knot that upwards grown tall.After oil cylinder 9 is finished upward movement, manually withdraw from the movable latch that connects lifting beam 10 and standard knot 4, oil cylinder 9 can drive lifting beam 10 and return initial position.
Flexible linking device 7 comprises connecting strap 12, and an end of connecting strap 12 links to each other with attached wall frame 11, and the other end links to each other with external stability thing 6.Connecting strap 12 comprises crimping steel anchor steel strand 28, one end of steel strand 28 links to each other with attached wall frame 11 by shackle 1, the other end links to each other with an end of double hook 16 by shackle 2 152, and the other end of double hook 16 links to each other with external stability thing 6 with shackle 4 154 by shackle 3 153.Attached wall frame 11 is the corresponding dead front type frameworks of an internal dimensions and standard knot 4 oads.Standard knot 4 peripheries are provided with vertical slide rail 13, are provided with the pulley 14 that can slide up and down along vertical slide rail 13 in the attached wall frame 11.Make that forming between attached wall frame 11 and the standard knot 4 rolls is connected.
During assembling, at first fix base 1 with holding-down bolt 21 on the basis of accomplishing fluently 22, hydraulic lifting mechanism 5 is placed on the base 1, the hydraulic lifting mechanism 5 here comprises a jacking frame 8, and its upper end is mounted with an oil cylinder 9, and a lifting beam 10 is settled in oil cylinder 9 upper ends.As Fig. 2 and shown in Figure 8, by the guide rail of base 1 limit end standard knot 4 is sent in the jacking frame 8, finish the liter that standard knot 4 makes progress by oil cylinder 9 and lifting beam 10 flexible and push work.When pole after jacking reaches certain height, at this moment in order to make the pole stable operation, as shown in Figure 3, be connected to attached wall frame 11 in the outer race of pole.Attached wall frame 11 places standard knot 4 peripheries, and attached wall frame 11 links to each other with external stability thing 6 by connecting strap 12.In the upright process of the group of electric power tower, external stability thing 6 promptly is the iron tower that grows tall gradually along with the lifting operation of pole, and pole is arranged on the center of iron tower, and iron tower is trapped among the periphery of pole, iron tower is upright behind the close height at pole top, and pole is upwards jacking again just.Attached wall frame 11 is connected in one pole and iron tower by flexible linking device 7, all is connected with iron tower by flexible linking device 7 around the general attached wall frame 11, has kept the stable of pole self effectively.On the whole height of pole, the quantity of attached wall frame 11 is the amount doesn't matter, and this should decide according to the environment and the lifting condition at scene.Also can have double hook 16 on the connecting strap 12, more help regulating the length of connecting strap 12, and can be connected with several shackles with steel strand 28 between connecting strap 12 and attached wall frame 11 and the external stability thing 6, whole here attached wall frame 11 and flexible linking device 7 can be referred to as the soft attached wall of build-up type.Adopt this fabricated soft attached wall gauge member, install simply, effect is obvious, and tooling cost is low, and the length adjustment scope is big, the recycling rate of waterused height.From rising in the process of top, because attached wall frame 11 inside are provided with pulley 14, standard knot 4 can be slided up and down at pole in attached wall frame 11, therefore rise in the process of top certainly whole, the soft attached wall of build-up type is fixed.
During work, two arms 3 are symmetry mutually, balance mutually, and operation simultaneously is adapted to the symmetry characteristics of iron tower material weight and position, high efficiency.Be positioned at suspension hook 20 parallel motion alone on the arm 3, also can rise and fall alone.During the suspension hook luffing, can move by a dolly, so the level of suspension hook 20 and vertical coordinate can regulate separately, make the tower material easier to be in place.Be provided with a swing type mechanism 24 between arm seat 17 and the shaft 2.Whole like this arm seat 17 can be done ± 90 spinning movements of spending for axle by shaft 2, and the hoisting operation face of whole pole is bigger.
The operator's station 26 of present embodiment and master hang elevator 27 and all are arranged on ground.
During dismounting, as shown in Figure 5, be to be hinged between arm 3 and the arm seat 17, therefore two arms 3 can upwards be done the jackknife action of 0 to 90 degree scope respectively.At first arm drag-line 18 is changed into and promote lifting rope 25, then with the upwards folding gathering of two arms 3, the pole head that whole arm 3 after the gathering and arm seat 17 form is not subjected to the flat mouthful of less restriction of size in external stability thing top, can be whole together smoothly from falling with shaft, removed two arms separate in the high-altitude on the body construction the difficulty and the trouble, solve the difficult problem that the pole head is removed, reduced the aloft work risk, also improved the work efficiency that pole is removed.
According to the utility model scheme, the pole main technical details that the applicant designs trial-production sees the following form:
| Project name | Unit | Design value | Remarks |
| The nominal hoisting moment | KN·M | 1500 | |
| Maximum gravity torque is poor | KN.M | 750 | |
| Maximum rated hoisting capacity | T | 10 | |
| The maximum functional amplitude | M | 22 | |
| Minimum work range | M | 2.4 | |
| Rated load weight during amplitude peak | T | 6.8 | |
| Allow amplitude peak during the biggest lifting capacity | M | 15 | |
| Free height | M | 36.2 | |
| The arm maximum height | M | 220 | |
| Complete machine total mass (220M) | T | 120 |
| Complete machine power | KW | 132 |
The applicant has carried out relevant closed test by national regulation to above-mentioned pole; Its technical performance has reached all design objective requirements fully.Prove that also the utility model pole performance is outstanding, safe and efficient.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. two flat arm seats ground pole, comprise the shaft (2) that is fixed on the base (1), be provided with arm (3) on the top of shaft (2), it is characterized in that, described shaft (2) comprises several standard knots that superposes successively (4), be bolted to connection between neighbouring two standard knots (4), the outside of shaft (2) is provided with the attached wall frame (11) that is socketed on standard knot (4) outer wall, attached wall frame (11) is connected with external stability thing (6) through flexible linking device (7), be useful on the hydraulic lifting mechanism (5) of the standard knot of packing into (4) in the base portion outer periphery of shaft (2), shaft (2) also comprises an arm seat (17) that is fixed on top, described arm seat (17) is trapezoidal, bottom symmetry at arm seat (17) is hinged with two arms (3), arm (3) is perpendicular with shaft (2), be the level of state, between arm (3) middle part and arm seat (17) top, be provided with arm drag-line (18).
2. two flat arm seat ground according to claim 1 pole, it is characterized in that, described hydraulic lifting mechanism (5) comprises a jacking frame (8) that is fixed on the base (1), on jacking frame (8), be fixed with oil cylinder (9), the expansion link of described oil cylinder (9) is connected with lifting beam (10), and lifting beam (10) is provided with can the solid movable latch of corresponding pin with standard knot (4).
3. two flat arm seat ground according to claim 1 pole is characterized in that described flexible linking device (7) comprises connecting strap (12), and an end of connecting strap (12) links to each other with attached wall frame (11), and the other end links to each other with external stability thing (6).
4. two flat arm seat ground according to claim 3 pole, it is characterized in that, described connecting strap (12) comprises crimping steel anchor steel strand (28), one end of steel strand (28) links to each other with attached wall frame (11) by shackle one (151), the other end links to each other by the end of shackle two (152) with double hook (16), and the other end of double hook (16) links to each other with external stability thing (6) with shackle four (154) by shackle three (153).
5. two flat arm seat ground according to claim 1 pole is characterized in that described standard knot (4) periphery is provided with vertical slide rail (13), is provided with the pulley (14) that can slide up and down along vertical slide rail (13) in the described attached wall frame (11).
6. two flat arm seat ground according to claim 1 pole is characterized in that arm (3) is truss-like inverted triangle cross section.
7. according to claim 1 or 6 described two flat arm seat ground poles, it is characterized in that, be provided with swing type mechanism (24) between described arm seat (17) and the shaft (2), arm seat (17) is fixed on the top of swing type mechanism (24), and the lower end of swing type mechanism (24) is fixed on shaft (2) top.
8. according to claim `1 or 6 described two flat arm seat ground poles, it is characterized in that described arm (3) is provided with and can goes up the dolly (19) that slides at arm (3), dolly (19) is provided with and supports the pulley that promotes lifting rope (25) and suspension hook (20).
9. two flat arm seat ground according to claim 8 pole, it is characterized in that, described dolly (19) is gone up an end that promotes lifting rope (25) and is fixed on arm (3) root, its other end through dolly (19) from the top of arm (3) around to arm seat (17) and downwards the standard knot guide wheel (23) on shaft (2) forward the outside to from shaft (2) inside, hang elevator (27) and link to each other with being arranged on ground master again, be provided with operator's station (26) near hanging elevator (27) main.
10. two flat arm seat ground according to claim 1 and 2 pole is characterized in that described base (1) is fixed on the basis (22) by holding-down bolt (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200851131U CN201040692Y (en) | 2007-06-06 | 2007-06-06 | Double horizontal arm grounding hold-pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200851131U CN201040692Y (en) | 2007-06-06 | 2007-06-06 | Double horizontal arm grounding hold-pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201040692Y true CN201040692Y (en) | 2008-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200851131U Expired - Fee Related CN201040692Y (en) | 2007-06-06 | 2007-06-06 | Double horizontal arm grounding hold-pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201040692Y (en) |
Cited By (15)
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| CN101830405A (en) * | 2010-05-07 | 2010-09-15 | 湖北省输变电工程公司 | Folding double-balanced suspension arm |
| CN102644403A (en) * | 2011-06-24 | 2012-08-22 | 国家电网公司直流建设分公司 | Holding pole with detachable standard knots |
| CN103434946A (en) * | 2013-09-08 | 2013-12-11 | 东台市富康工程机械厂 | Movable type tower crane |
| CN103832933A (en) * | 2013-09-29 | 2014-06-04 | 国家电网公司 | Group tower type crane with auxiliary boom |
| CN103924816A (en) * | 2014-04-16 | 2014-07-16 | 山东送变电工程公司 | Installation method for cup type iron tower of ultra-high voltage transmission line |
| CN104100124A (en) * | 2014-07-23 | 2014-10-15 | 国家电网公司 | Holding pole base connecting and fixing device |
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| CN105905815A (en) * | 2014-07-18 | 2016-08-31 | 国家电网公司 | Work method of seating-type self-balance holding pole |
| CN104555829B (en) * | 2013-10-11 | 2017-03-29 | 卓越置业集团有限公司 | Automatic transmission |
| CN107060480A (en) * | 2017-06-15 | 2017-08-18 | 国网山东省电力公司烟台供电公司 | A kind of electric pole sets up bar top material transfer device |
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| CN111377364A (en) * | 2020-03-13 | 2020-07-07 | 中国建筑股份有限公司 | Ground jacking type tower crane device and construction method |
| CN111997430A (en) * | 2020-08-10 | 2020-11-27 | 安徽送变电工程有限公司 | High tower for line crossing in construction of extra-high voltage transmission line and assembling method thereof |
| CN113585860A (en) * | 2021-09-02 | 2021-11-02 | 扬州国电通用电力机具制造有限公司 | Device and method for mounting and dismounting double-arm holding pole |
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2007
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| CN103924816B (en) * | 2014-04-16 | 2015-11-25 | 山东送变电工程公司 | A kind of mounting method of UHV transmission line wine glass-shaped steel tower |
| CN103924816A (en) * | 2014-04-16 | 2014-07-16 | 山东送变电工程公司 | Installation method for cup type iron tower of ultra-high voltage transmission line |
| CN105905815A (en) * | 2014-07-18 | 2016-08-31 | 国家电网公司 | Work method of seating-type self-balance holding pole |
| CN104100124A (en) * | 2014-07-23 | 2014-10-15 | 国家电网公司 | Holding pole base connecting and fixing device |
| CN104100124B (en) * | 2014-07-23 | 2016-05-11 | 国家电网公司 | A kind of holding pole base is connected and fixed device |
| CN104355239A (en) * | 2014-11-09 | 2015-02-18 | 国网山东梁山县供电公司 | Crane for electric tower |
| CN104495635A (en) * | 2014-11-26 | 2015-04-08 | 国家电网公司 | Hoisting apparatus for construction of 220 KV power transmission line cat-head type tower |
| CN107060480A (en) * | 2017-06-15 | 2017-08-18 | 国网山东省电力公司烟台供电公司 | A kind of electric pole sets up bar top material transfer device |
| CN107237543A (en) * | 2017-06-15 | 2017-10-10 | 国网山东省电力公司烟台供电公司 | A kind of electric pole sets up bar top material transfer device and locking mechanism one |
| CN107237543B (en) * | 2017-06-15 | 2019-04-02 | 国网山东省电力公司烟台供电公司 | A kind of electric pole erecting rod top material transfer device and locking mechanism one |
| CN111377364A (en) * | 2020-03-13 | 2020-07-07 | 中国建筑股份有限公司 | Ground jacking type tower crane device and construction method |
| CN111377364B (en) * | 2020-03-13 | 2022-08-05 | 中国建筑股份有限公司 | Construction method of ground jacking type tower crane device |
| CN111997430A (en) * | 2020-08-10 | 2020-11-27 | 安徽送变电工程有限公司 | High tower for line crossing in construction of extra-high voltage transmission line and assembling method thereof |
| CN113585860A (en) * | 2021-09-02 | 2021-11-02 | 扬州国电通用电力机具制造有限公司 | Device and method for mounting and dismounting double-arm holding pole |
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