CN203308163U

CN203308163U - Lifting iron tower

Info

Publication number: CN203308163U
Application number: CN2013201286971U
Authority: CN
Inventors: 冯俊江
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-21
Filing date: 2013-03-21
Publication date: 2013-11-27
Anticipated expiration: 2023-03-21

Abstract

An iron tower capable of rising and falling uses polygonal tubular products as a tower body and uses a three-phase motor and a reducer as power, a pulley, a steel wire rope, a steel wire rope pulley, fastening screws, an iron disc, a pin, a lightning rod, a communication antenna, a platform, a crawling ladder are arranged in the iron tower, and the motor, the reducer and an inverted switch are arranged beside the iron tower. The lifting iron tower has the advantages of being convenient to install and maintain manually safely, and the steel wire rope used by the lifting iron tower is designed in the iron tower and not prone to corrosion. Due to the fact that section bars are used for the tower body, large-scale and refined production and machining can be achieved.

Description

The lifting steel tower

Technical field

The utility model is to utilize polygonal steel pipe to be tower body, and three phase electric machine, reducer are the lifting steel tower of power.

Background technology

At present, known work high above the ground is the occupation of highly dangerous, and in the time of the communication equipment installation, maintenance, it is how high that tower has many high workloads personnel just to climb, and all has life danger all the time.The lifting steel tower of using on market now is the tower body that the manual welding tripod is done, and during welding, tower body is yielding, and technique is simple and crude, extensive, outside wire rope is exposed to for a long time, perishable, there is potential safety hazard, tower body is owing to being all manual welding, between joint and joint, can't reach accurate degree, and can not large-scale production, the genus primary stage, can't reach the service life of ordinary base station, communication base station belongs to object of construction production, and investment is large, uses wide.

Summary of the invention

In order to overcome the danger of existing work high above the ground, improve the quality of steel tower, the utility model provides a kind of lifting steel tower, and the staff is not only so high without climbing, and is produced on a large scale, and tower body is owing to being the section bar used, and size is accurate.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of lifting steel tower, same shape, sustained height, the polygonal steel pipe of different-diameter forms tower body, be provided with pulley, wire rope, wire rope pulley, holding screw, iron pan, pin, lightning rod, communication antenna, platform, cat ladder, there is motor on the tower side, reducer, two-direction switch, it is characterized in that: the polygonal steel pipe of same shape sustained height different-diameter forms tower body and is set in together, go up most a joint upper end lightning rod is installed, communication antenna, next joint is fixed on that basis is upper to be connected in underground lightning conduction, each saves inner pulley, wire rope, with motor, reducer is power.

(quantity of joint and every joint height are determined by the steel tower height by more piece, the section bar of every steel tower adopt same section bar and each joint highly equal) the section bar steel pipe is set in together successively from top to bottom from fine to coarse, gap between every joint is greater than the diameter of two wire rope, one save a namely the thinnest joint following installation pulley topmost, the second section inwall of take is slideway; Second section upper end weldering one iron pan, the external diameter of the bigger first segment of interior bore of dish, slide and be advisable with the first segment easy on and off, and the second section lower end is welded with pulley, and the 3rd joint inwall of take is slideway; The 3rd joint, the 4th joint.。。Arrive by that analogy a bottom joint, a bottom joint lower end does not have pulley, directly with basis, is connected.Tower body inside is provided with a series connection wire rope, assembly pulley, three phase electric machine is the power connection reducer, wire rope is above reducer, three phase electric machine is controlled by two-direction switch, reach the purpose of folding and unfolding wire rope, principle is such: the upper end of wire rope is fixed on the bottom outside of first segment, on the upper end inwall pulley to second section, wire rope along the second section inwall down to the second section bottom pulley, lay out second section to the three joint inwalls upward to head sheave place on the 3rd joint inwall, wire rope saves bottom along the 3rd joint inwall down to the 3rd, analogize in proper order like this, to final section, a wire rope in the end joint bottom out is connected with reducer around pulley, reducer is first segment rise above steel tower when tightening up wire rope, when first segment is raised to the requirement height, by the professional staff by cat ladder to working platform, inject pin, screw the fixed tower nut of first segment and second section, and then rise second section, down by that analogy, until all rise, this time, each node of tower body all became an integral body with screw locking, last procedure is by regulating foot screw, tower body to be proofreaied and correct, proofread and correct the complete foot screw of tightening, between every joint, inserting depth is not less than 2.5 times of this section diameter, in the time of work, wire rope is in relaxed state.When falling, inverse operation is just passable.

The beneficial effects of the utility model are: not only make more standard criterion of lifting steel tower, and the staff is without climbing the so high installation and maintenance operation of going, the wire rope Hide All, in tower body inside, plays the wire rope protective effect.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated (this figure be take six joint tower bodies and is example, and the polygon steel tube section be take rectangular steel tube and is example).

Fig. 1 is that steel tower rises view.

Fig. 2 is the schematic diagram that steel tower is fallen.

Fig. 3 is the structure chart screwed down between saving up and down, screw the number, size determines according to the steel tower height.

Fig. 4 is wire rope, pulley schematic diagram.

In Fig. 1,1. first segment, 2. second section, 3. the 3rd joint, 4. the 4th joint, 5. the 5th joint, 6. the 6th joint, 7. lightning rod, 8. communication antenna, 9. motor, reducer, two-direction switch, 10. working platform, 11. cat ladders, 12 wire rope.

In Fig. 2,1. first segment, 2. second section, 3. the 3rd joint, 4. the 4th joint, 5. the 5th joint, 6. the 6th joint, 7. communication antenna, 8. lightning rod, 9. motor, reducer, 10. working platform, 11. cat ladders, 12. wire rope.

In Fig. 3, the iron pan of the 1 every joint steel tower of fastening steel tower screw 2 upper end, 3. pin (being commonly called as bracket), 4. pulley, 5. stop, the lower head sheave sectional view of each joint of A-A, B-B respectively saves the pin sectional view, C-C holding screw sectional view.

In Fig. 4,1 assembly pulley, 2. wire rope

The specific embodiment:

In Fig. 1, first segment (1), second section (2), the 3rd joint (3), the 4th joint (4), the 5th joint (5), the 6th joint (6), peg graft successively mutually, under the rise state mutually inserting depth be not less than 2.5 times of its nozzle diameter, 7. lightning rod, 8. communication antenna is arranged on the first segment upper end.9. motor, reducer, two-direction switch, be fixed on steel tower one side group plinth, operation two-direction switch, motor, reducer (9) are packed up wire rope (12) rises steel tower, and the staff reinforces each node by cat ladder (11) one by one to working platform (10).

In Fig. 2,1 joint is the states after steel tower falls to 6 joints, communication antenna (7), lightning rod (8), operation two-direction switch motor, reducer, (9) emit wire rope (12), and steel tower is fallen, the workman unclamps each node at working platform (10) simultaneously

In Fig. 3, , the interior bore of the iron pan (2) of every joint steel tower upper end is greater than the outer bore 3mm of a joint steel pipe, the joint steel pipe can be moved up and down, when rising steel tower, when first segment is raised to stop (5) and touches second section upper end iron pan, second section rises, when second section upper end holding screw exposes the 3rd joint when suitable for reading, closing switch, stop rising, the staff inserts pin (3) on working platform, use simultaneously the fastening steel tower screw of spanner (1) for reinforcing and proofread and correct tower body, fastening complete, the operation two-direction switch, the second section steel tower continues to rise, when second section is raised to stop (5) and touches the 3rd joint upper end iron pan, the 3rd joint rises, the staff successively same operation until steel tower all rise, pulley (4) is fixed on each joint bottom, below the joint inwall is slideway, move up and down.Steel tower wire rope after rise is that nature is lax, and during the steel tower landing, the staff carries out reverse operating on platform, make respectively to save steel tower and from bottom to top fall one by one.

In Fig. 4,1 assembly pulley, 2. wire rope.Steel tower relies on motor, reducer exactly, by two-direction switch, is controlled the purpose that reaches lifting by the retractable wire rope.

Claims

1. lifting steel tower, tower body is by shape, highly identical, the different polygonal steel pipe of diameter forms, inside is provided with pulley, wire rope, holding screw, iron pan, pin, lightning rod, communication antenna, working platform, cat ladder, motor, reducer, switch all or part of, it is characterized in that: the tower body that the polygonal steel pipe of same shape sustained height different-diameter forms is set in together, go up most a joint upper end lightning rod and communication antenna are installed, next joint steel tower and motor reducer are fixed on basis, motor, reducer is controlled inner pulley and the movement of wire rope.

2. lifting steel tower according to claim 1 is characterized in that: described steel tower inside is provided with assembly pulley, a series connection wire rope, and three phase electric machine is the power connection reducer, and wire rope is above reducer, and three phase electric machine is controlled by two-direction switch.

3. lifting steel tower according to claim 1 and 2, it is characterized in that: described polygonal steel pipe is triangle, rectangle, polygon, circle or oval.

4. lifting steel tower according to claim 1 and 2 is characterized in that: each joint of described tower body is fixed by pin and holding screw, and tower body is proofreaied and correct.