CN211366754U - A light and easy-to-install tower crane - Google Patents

Abstract

A light-duty and easy-to-install tower crane comprises a tower crane foundation arranged at the bottom, a base is arranged on the tower crane foundation, a slewing bearing is arranged on the base, an upper bearing is arranged on the slewing bearing, and the upper bearing is installed There is a tower bottom, and a first strut connecting piece and a second strut connecting piece are respectively arranged at the front end and the rear end of the base. The utility model adopts the above structure, the structure design of the tower crane is simple and reasonable, and the weight of each part does not exceed 50 kilograms. During field operations, the parts of the tower crane can be transported by manpower, and no additional transportation equipment is required. , which can adapt to the harsh working environment where transportation equipment cannot be used; at the same time, the assembly process of the tower crane is simple and labor-saving. After the horizontal installation is completed, the tower body is erected by the hoist and pulley equipment, without the need for additional assembly equipment, and the assembly method is cleverly designed. Adapt to harsh field environment, wide range of applications, solve the existing problems.

Description

A light and easy-to-install tower crane

technical field

The utility model relates to a tower crane, in particular to a light and easy-to-install tower crane.

Background technique

Tower cranes, also known as tower cranes, are commonly used lifting equipment on construction sites. At present, most of the general tower cranes are assembled and formed by multiple components, and each component of the general tower crane is mostly heavy, and usually requires the help of handling equipment during the handling process, and usually requires the help of lifting equipment during the assembly process. However, for field operations, such as building base stations for mobile communications in the field, it is often very difficult to use general tower cranes: first, the field operating environment is often harsh, and some operating sites have difficult or even no roads. It is difficult to use the handling equipment to carry the parts; secondly, the assembly process of the general tower crane is more complicated, and usually requires additional lifting equipment for auxiliary installation, and the field operation environment is often unable to use the lifting equipment, and it is difficult to complete the tower crane by manpower alone. Assembly work. With the active promotion of the country's western strategy and the rapid development of the communication industry, there are more and more tower cranes operating in the field. Therefore, it is urgent to develop a light and easy-to-install tower crane suitable for operation in harsh field environments.

SUMMARY OF THE INVENTION

The utility model provides a light-weight and easy-to-install tower crane, which has a reasonable structure design and solves the problems existing in the prior art.

The technical scheme adopted by the present utility model for solving the above-mentioned technical problems is:

A light and easy-to-install tower crane comprises a tower crane foundation arranged at the bottom, a base is arranged on the tower crane foundation, a slewing bearing is arranged on the base, an upper bearing is arranged on the slewing bearing, and an upper bearing is arranged on the upper bearing. There is a tower bottom, the front and rear ends of the upper support are also provided with a first support rod connecting piece and a second support rod connecting piece, a transition section is installed on the top of the tower bottom, and the front side of the first support rod connecting piece is installed and the rear side are respectively provided with a first support rod, the front side and the rear side of the second support rod connecting piece are respectively provided with a second support rod, and the other ends of the first support rod and the second support rod are connected with the transition joint, A tower body is installed at the top of the transition section. The tower body includes several interconnected tower body sections. A small tower body section is arranged at the top of the tower body. A tower spire is installed on the top of the small tower body. The top of the tip is equipped with a boom;

A pulley system is also arranged on the tower crane, and the pulley system includes an erection pulley system arranged between the upper support and the tower bottom for erecting the installed tower body and the boom; The luffing pulley system between the jibs for adjusting the amplitude of the jib; the hook pulley system for adjusting the height of the hook on the tower body and the jib.

The tower crane foundation includes a concrete base, and the concrete strength grade of the concrete base is C35, and anchor bolts are arranged at intervals on the concrete base corresponding to the base position.

The erecting pulley system includes a first pulley combination arranged on the upper support and a tower bottom pulley combination that is arranged on the tower bottom to match the first pulley combination, and is sleeved on the first pulley combination and the tower bottom pulley combination. The rope is connected to the first hoist provided on the upper support.

The luffing pulley system includes a luffing pulley combination arranged on the upper support, and also includes a movable pulley arranged at the rear end of the boom end. The rope sleeved on the movable pulley bypasses the luffing pulley combination and is connected to the upper support Second winch on the seat.

The hook pulley system includes a boom pulley arranged at the front end of the boom, and also includes several tower body pulleys arranged on the tower body. One end of the rope of the hook pulley system is connected to the boom, and the rope is sleeved on the suspension. On the hoisting hook under the jib, then bypass the jib pulley and the tower pulley, and finally connect to the third hoist set on the upper support.

The utility model adopts the above structure, the structure design of the tower crane is simple and reasonable, the weight of each part is relatively light, and the parts of the tower crane can be transported by manpower during field operations, without the need for additional transportation equipment, and can adapt to The harsh working environment where transportation equipment cannot be used; at the same time, the assembly process of the tower crane is simple and labor-saving. After the horizontal installation is completed, the tower body is erected by the hoist and pulley equipment, and no additional assembly equipment is required. The assembly method is cleverly designed and can adapt to harsh environments. In the field environment, it has a wide range of applications and solves the existing problems.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a schematic structural diagram of the upper support of the present invention.

FIG. 3 is a top view of FIG. 2 .

Figure 4 is a schematic structural diagram of the tower bottom of the present invention.

FIG. 5 is a right side view of FIG. 4 .

FIG. 6 is a schematic structural diagram of a transition joint of the present invention.

7 is a schematic structural diagram of a tower body section of the present invention.

8 is a schematic structural diagram of a small tower body section of the present invention.

9 is a schematic structural diagram of the spire of the present invention.

FIG. 10 is a schematic structural diagram of the boom of the present invention.

In the figure, 1, tower crane foundation, 2, base, 3, slewing bearing, 4, upper support, 5, tower bottom, 6, first strut connector, 7, second strut connector, 8, transition Section, 9, first strut, 10, second strut, 11, tower body, 12, tower body section, 13, small tower body section, 14, tower tip, 15, boom, 16, first pulley Combination, 17, tower bottom pulley combination, 18, first winch, 19, movable pulley, 20, second winch, 21, boom pulley, 22, tower body pulley, 23, hook, 24, third winch, 25 , Luffing pulley combination.

Detailed ways

In order to clearly illustrate the technical characteristics of the present solution, the present utility model will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

As shown in Figure 1-10, the structure of the present utility model is:

A light and easy-to-install tower crane includes a tower crane foundation 1 arranged at the bottom, a base 2 is arranged on the tower crane foundation 1, a slewing bearing 3 is arranged on the base 2, and an upper support 4 is arranged on the slewing bearing 3 , a tower bottom 5 is installed on the upper support 4, a first support rod connecting piece 6 and a second support rod connecting piece 7 are respectively arranged at the front end and the rear end of the upper support 4, and a top support rod connecting piece 7 is installed on the top of the tower base 5. The transition joint 8 is provided with first struts 9 on the front and rear sides of the first strut connecting piece 6, respectively, and second struts 10 on the front and rear sides of the second strut connecting piece 7, respectively. The other ends of the first strut 9 and the second strut 10 are both connected to the transition section 8, and a tower body 11 is installed on the top of the transition section 8. The tower body 11 includes a plurality of interconnected tower body sections 12. The The tower body section 12 is composed of four tower body section frames, and the weight of each tower body section frame is less than 50 kg. A small tower body section 13 is arranged at the top of the tower body 11, and the weight of the small tower body section 13 is less than 50 kg, a tower spire 14 is installed on the top of the small tower body section 13, and a boom 15 is installed on the top of the tower spire 14;

A pulley system is also configured on the tower crane, and the pulley system includes an erection pulley system configured between the upper support 4 and the tower bottom 5 for erecting the installed tower body and the boom 15; A luffing pulley system for adjusting the amplitude of the boom 15 between the support 4 and the boom 15 ; a hook pulley system for adjusting the height of the hook 23 arranged on the tower body 11 and the boom 15 .

The tower crane foundation includes a concrete base, and the concrete strength grade of the concrete base is C35, and steel bars are arranged inside the tower crane base 1, and the steel bars are grade 3 rebar, and the ground resistance used to build the tower crane base 1 is not less than 160KPa. , the plane level error on the tower crane foundation 1 is less than 2 mm, and a cushion with a thickness of more than 100 mm should be poured under the tower crane foundation 1. The concrete strength level of the cushion is greater than C20, and the cushion should be 100 mm from the edge. Anchor bolts are arranged at intervals on the concrete base corresponding to the base position.

The erecting pulley system includes a first pulley assembly 16 arranged on the upper support 4 and a tower bottom pulley assembly 17 arranged on the tower bottom 5 to cooperate with the first pulley assembly 16, which is sleeved on the first pulley assembly 16 and the tower bottom pulley assembly 17. The ropes on the tower bottom pulley assembly 17 are connected to the first winch 18 provided on the upper support 4 .

The luffing pulley system 25 includes a luffing pulley assembly arranged on the upper support 4, and also includes a movable pulley 19 disposed at the rear end of the boom 15, and the rope sleeved on the movable pulley 19 bypasses the luffing pulley assembly 25. Connected to the second hoist 20 provided on the upper support.

The hook pulley system includes a boom pulley 21 arranged at the front end of the boom 15, and also includes a plurality of tower body pulleys 22 arranged on the tower body 11. One end of the rope of the hook pulley system is connected to the boom 15. On the upper side, the rope is set on the hook 23 suspended under the boom 15, then goes around the boom pulley 21 and the tower pulley 22, and finally connects to the third hoist 24 arranged on the upper support 4.

When installing, firstly install the tower crane foundation 1 and base 2, then install the slewing bearing 3, install the support 4 on the slewing bearing 3, and then sequentially install the tower bottom 5, the transition section 8, and the tower body 11. And the installation of the boom 15 is completed. At this time, the tower bottom 5, the transition section, the tower body 11 and the boom 15 are all in a horizontal state, and the first support rod 9 and the second support rod 10 are connected to the upper support 4 and the transition. Between the sections 8, the erection pulley system between the upper support 4 and the tower bottom 5 is configured. Then configure the luffing pulley system and hook pulley system.

The first hoist 18 is started to operate the erecting pulley system. As the rope between the tower bottom pulley assembly 17 and the first pulley assembly 16 is tightened, the tower bottom 5, the transition section 8, the tower body 11 and the boom 15 gradually Stand up until the tower body 11 is in a vertical state, stop the operation of the erection pulley system, and insert the pin connecting the tower bottom 5 and the upper support 4 .

During the operation of the tower crane, the angle of the boom 15 can be adjusted through the operation of the luffing pulley system to realize the adjustment of the lifting amplitude. The lifting of heavy objects is realized through the operation of the hook pulley system. The rotation of the tower crane is realized by manually pushing the upper support 4, which saves costs and is convenient to operate. The working range of the tower crane is 2.6 meters to 4 meters, the lifting height is 19 meters, and the maximum lifting weight can reach 0.7 tons.

The above-mentioned specific embodiments are not intended to limit the protection scope of the present invention. For those skilled in the art, any alternative improvements or transformations made to the embodiments of the present invention fall within the protection scope of the present invention.

The parts not described in detail in the present invention are the well-known technologies of those skilled in the art.

Claims (5)

1. A light-duty tower machine of easily installing which characterized in that: the tower crane comprises a tower crane foundation arranged at the bottom, wherein a base is arranged on the tower crane foundation, a slewing bearing is arranged on the base, an upper support is arranged on the slewing bearing, a tower bottom is arranged on the upper support, a first supporting rod connecting piece and a second supporting rod connecting piece are further arranged at the front end and the rear end of the upper support respectively, a transition joint is arranged at the top of the tower bottom, a first supporting rod is arranged on the front side and the rear side of the first supporting rod connecting piece respectively, a second supporting rod is arranged on the front side and the rear side of the second supporting rod connecting piece respectively, the other ends of the first supporting rod and the second supporting rod are connected with the transition joint, a tower body is arranged at the top of the transition joint, the tower body comprises a plurality of mutually connected tower body joints, a small tower body joint is arranged at the topmost end of the tower body, a tower tip is arranged at the top of the small tower body joint, and a cargo boom is arranged at the;

the tower crane is also provided with a pulley system, and the pulley system comprises a vertical pulley system which is arranged between the upper support and the tower bottom and used for vertically mounting the tower body and the crane boom; the amplitude variation pulley system is arranged between the upper support and the crane boom and used for adjusting the amplitude of the crane boom; and the hook pulley system is arranged on the tower body and the crane arm and used for adjusting the height of the hook.

2. A light easy-to-install tower crane according to claim 1, characterized in that the tower crane foundation comprises a concrete base, the concrete strength grade of the concrete base is C35, and anchor bolts are arranged on the concrete base corresponding to the base at intervals.

3. A light easy-to-install tower crane according to claim 1, characterized in that: the vertical pulley system comprises a first pulley combination arranged on the upper support and a tower bottom pulley combination arranged on the tower bottom and matched with the first pulley combination, and a rope sleeved on the first pulley combination and the tower bottom pulley combination is connected to a first winch arranged on the upper support.

4. A light easy-to-install tower crane according to claim 1, characterized in that: the variable-amplitude pulley system comprises a variable-amplitude pulley combination arranged on the upper support and a movable pulley arranged at the rear end of the lifting arm, and a rope sleeved on the movable pulley bypasses the variable-amplitude pulley combination and is connected to a second winch arranged on the upper support.

5. A light easy-to-install tower crane according to claim 1, characterized in that: the lifting hook pulley system comprises a lifting arm pulley arranged at the front end of the lifting arm and a plurality of tower body pulleys arranged on a tower body, one end of a rope of the lifting hook pulley system is connected to the lifting arm, the rope is sleeved on a lifting hook hung below the lifting arm, then the rope bypasses the lifting arm pulley and the tower body pulley and is finally connected to a third winch arranged on the upper support.

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