CN202175518U

CN202175518U - Attached type light derrick

Info

Publication number: CN202175518U
Application number: CN2011201755778U
Authority: CN
Inventors: 张弓; 吴尧成; 孙伟军; 刘金富; 方孔承; 王卫刚; 龚飞
Original assignee: ZHEJIANG FUDA ENGINEERING CONSTRUCTION Co Ltd; Zhejiang Electric Power Transmission and Transforming Engineering Co
Current assignee: ZHEJIANG FUDA ENGINEERING CONSTRUCTION Co Ltd; Zhejiang Electric Power Transmission and Transforming Engineering Co
Priority date: 2011-05-27
Filing date: 2011-05-27
Publication date: 2012-03-28
Anticipated expiration: 2021-05-27

Abstract

An attached type light derrick comprises a derrick body. A balance arm is installed on one side at the upper end of the derrick body, a suspension arm is installed on the other side at the upper end of the derrick body, a first pulley wheel is installed on the balance arm, and a second pulley wheel is installed on the suspension arm. A first steel wire rope on a first pulley sequentially penetrates through the first pulley wheel and the second pulley wheel, and the tail end of the first steel wire rope is connected with a headframe to be hoisted. A lifting ring is installed at the lower portion of the derrick body, a first hoop is installed on the derrick body at the lower portion of the lifting ring, two second hoops are installed on the derrick body at the upper portion of the lifting ring, and the two second hoops are in loose fit with a steel pipe of the headframe. A third pulley wheel is installed at the upper end of the headframe, a second steel wire rope on a second pulley penetrates through the third pulley wheel, and the tail end of the second steel wire rope is connected with the lifting ring. The attached type light derrick reduces weight and is convenient to use.

Description

The light-duty pole of adhesion type

Technical field

The utility model belongs to lifting device, especially a kind of pole.

Background technology

Lift many columns and cross over to set up in the meter and can adopt pole usually, in order to guarantee the support strength of pole, can truss structure, the technological deficiency of existence be set in the pole upper end usually: weight is big, it is inconvenient to use.

Summary of the invention

Big for the weight that overcomes existing pole, use inconvenient deficiency, the utility model that a kind of expendable weight, the light-duty pole of adhesion type easy to use are provided.

The utility model solves the technical scheme that its technical matters adopted:

The light-duty pole of a kind of adhesion type comprises pole, and upper end one side of said pole is installed equilibrium arm; The upper end opposite side of said pole is installed arm, and first pulley is installed on the said equilibrium arm, and second pulley is installed on the said arm; First supratrochlear first steel rope passes said first pulley and second pulley successively, and the end of said first steel rope is connected with derrick to be lifted, and enhancing ring is installed in said pole bottom; First anchor ear is installed on the pole of the bottom of said enhancing ring; Two second anchor ears are installed on the pole on the top of said enhancing ring, and said two second anchor ears and said pole are easy fit, and the 3rd pulley is installed in the upper end of derrick; Said the 3rd pulley of second supratrochlear second steel wire penetrating, the end of said second steel rope is connected with said enhancing ring.

Further, said derrick installation is installed the 4th pulley on the said base on base, and said second steel rope passes said the 4th pulley and the 3rd pulley successively.

The beneficial effect of the utility model mainly shows: expendable weight, easy to use.

Description of drawings

Fig. 1 is the lifting view of the light-duty pole of adhesion type.

Fig. 2 is the arrangement plan of the light-duty pole of adhesion type.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

See figures.1.and.2, the light-duty pole of a kind of adhesion type comprises pole 1; Upper end one side of said pole 1 is installed equilibrium arm, and the upper end opposite side of said pole 1 is installed arm, and first pulley is installed on the said equilibrium arm; Second pulley is installed on the said arm, and first steel rope on first coaster 2 passes said first pulley and second pulley successively, and the end of said first steel rope is connected with derrick to be lifted; Enhancing ring 3 is installed in said pole 1 bottom, and first anchor ear is installed on the pole of the bottom of said enhancing ring 3, and two second anchor ears are installed on the pole on the top of said enhancing ring 3; Said two second anchor ears and pole are easy fit; The 3rd pulley is installed in the upper end of derrick, said the 3rd pulley of second steel wire penetrating on second coaster 4, and the end of said second steel rope is connected with said enhancing ring.

Said derrick installation is installed the 4th pulley on the said base 5 on base 5, said second steel rope passes said the 4th pulley and the 3rd pulley successively.

In the present embodiment, the top does not have backguy, 7 meters of height overalls, and 80 kilograms of total weightes, 260 kilograms of rated loads are done the effect of lifting derrick; Pole rises to and clamps two anchor ears when pole lower end enhancing ring ring is run into first anchor ear respectively, and pole is done the effect of second samsara lifting derrick, and the operation handlebar derrick lifts certain altitude successively, sheds pole, and derrick is just established completion.

Hang first coaster (3t coaster, i.e. winch) in pole 1 upper end, first lattice and the about 1.4m of second lattice place in the pole upper end; Connect with 2 second anchor ears respectively; The fastening bolt of second anchor ear and pole master material should be fastening, and anchor ear contacts with steel pipe and is easy fit, connects enhancing ring with ∮ 11 steel ropes then and slowly promotes; Rise to be higher than the about 5m in pole upper end after; First anchor ear is installed, and first anchor ear should withstand the diagonal brace of the 3rd lattice below the pole upper end, the unified at last anchor ear bolt of tightening below enhancing ring.

The light-duty pole of second lift, first coaster (3t coaster, i.e. winch) suspension, the second joint pole upper end; At pole first lattice and the about 1.4m of second lattice place topmost; Assemble 2 anchor ears respectively, matching requirements are identical, then with ∮ 11 steel ropes connect enhancing ring and the tension after; Ease out 3 anchor ear bolts of hypomere, the lifting order is identical with last time.

Light-duty pole unloading process: at second coaster (3t coaster; Be winch) the suspension second joint pole upper end, after connecting enhancing ring and strain with ∮ 11 steel ropes, ease out 3 anchor ear bolts of hypomere; 2 anchor ears of first lattice and second lattice topmost contact with steel pipe and are easy fit; The anchor ear of the 3rd lattice is pine entirely, slowly puts down then, under light-duty pole, in the process of landing, has two anchor ears to contact with steel pipe all the time.

In the present embodiment, the column section is 500 * 500, and the design maximum height is 43 meters; By every joint 500 * 500 * 4300 totally 10 joints assemble, every joint weight 166k, assembling need to adopt the light-duty pole of adhesion type to lift; The lifting program is; Pole is attached on the column, column lifting one joint, and pole is along with the desired height that is elevated to next joint of lifting.

The holding pole technology characteristic of present embodiment: 1, pole overall height 7m, the cross section is ∮ 102 * 5mm; 2, the maximum drift angle of lifting by crane is 10 degree, and tricing line angle over the ground is not more than 45 degree; 3, be not more than under the condition of 5m in drift, allowing lift heavy is 166 kilograms; 4, mechanical test is undertaken by specified lifting 166kg * 1.25 times; 5, excess load test is undertaken by specified lifting 166kg * 1.5 times, and pole has good stability.

Claims

1. the light-duty pole of adhesion type comprises pole, it is characterized in that: upper end one side of said pole is installed equilibrium arm; The upper end opposite side of said pole is installed arm, and first pulley is installed on the said equilibrium arm, and second pulley is installed on the said arm; First supratrochlear first steel rope passes said first pulley and second pulley successively, and the end of said first steel rope is connected with derrick to be lifted, and enhancing ring is installed in said pole bottom; First anchor ear is installed on the pole of the bottom of said enhancing ring; Two second anchor ears are installed on the pole on the top of said enhancing ring, and said two second anchor ears and pole are easy fit, and the 3rd pulley is installed in the upper end of derrick; Said the 3rd pulley of second supratrochlear second steel wire penetrating, the end of said second steel rope is connected with said enhancing ring.

2. the light-duty pole of adhesion type as claimed in claim 1 is characterized in that: said derrick installation is installed the 4th pulley on the said base on base, said second steel rope passes said the 4th pulley and the 3rd pulley successively.