CN104265056A - Ground mounted derrick - Google Patents

Abstract

The invention relates to a floor holding pole, which includes a pole holding body composed of standard joints. An operating platform is provided beside the movable end of the jacking cylinder, a pumping station and a winch joint are provided in the middle of the main body of the holding pole, and a support is provided at the upper end of the main main body of the holding pole, and a rotating shaft is provided on the support. Support, the slewing support is provided with a rocker arm seat, a rocker arm is provided on both sides of the rocker arm seat, a mast is longitudinally provided in the middle of the rocker arm seat, and the top of the mast is respectively wound around the rocker arm The luffing steel wire rope on the movable end, and the lifting steel wire rope is also wound on the movable end of the rocker arm. The invention can realize stable lifting, and can effectively reduce the number of personnel for tower assembly construction and site occupation, and is energy-saving, environment-friendly, safe and reliable.

Description

a floor stand

technical field

The invention relates to a floor holding pole, which belongs to engineering equipment.

Background technique

During the construction of high towers and vertical towers of power transmission lines, we often encounter conditions such as narrow and limited sites, difficulties in the layout of ground lifting, luffing drag equipment, and electrical control devices in electrical control boxes, which have brought great challenges to safe construction. Impact. Therefore, it is the research object of the present invention to address the above problems.

Contents of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a landing pole.

Technical scheme of the present invention is:

A floor holding pole, comprising a pole main body composed of standard joints, characterized in that: a lifting frame is provided at the bottom of the main body of the holding pole, and a jacking oil cylinder is respectively provided on both sides of the lifting frame, and the top There is an operating platform next to the movable end of the lifting oil cylinder, a pump station and a hoisting joint are provided in the middle of the main body of the holding pole, and a support is provided at the upper end of the main body of the holding pole, and a slewing bearing is provided on the support. A rocker seat is provided on the slewing bearing, a rocker arm is provided on both sides of the rocker seat, a mast is arranged longitudinally in the middle of the rocker seat, and the top of the mast is respectively wound on the movable end of the rocker arm. A luffing steel wire rope, and a hoisting wire rope is wound on the movable end of the rocker arm. The rocker arm includes a bottom joint of the rocker hinged on The rocker cap on the standard section of the rocker arm is wrapped with a lifting wire rope. The two sides of the middle part of the mast are respectively hinged with a rocker top frame and a top support cylinder. The movable end of the top support cylinder is hinged on the top of the corresponding side rocker arm. the middle of the shelf.

Wherein, the top of the mast is provided with a mast cap.

The movable end of the lifting wire rope is provided with a hook.

The advantages of the present invention are: the present invention can achieve stable lifting, and can effectively reduce the number of personnel and site occupation for tower construction, energy saving, environmental protection, safety and reliability.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed ways

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

With reference to Fig. 1, the present invention relates to a floor holding pole, comprising a pole main body composed of a standard section 1, a lifting frame 2 is provided at the bottom of the main body of the holding pole, and a jacking frame is respectively provided on both sides of the lifting frame. Oil cylinder 3, an operating platform 4 is provided next to the movable end of the jacking cylinder, a pump station 5 and a winch joint 6 are provided in the middle of the main body of the pole, and a seat 7 is provided on the upper end of the main body of the pole. The support is provided with a slewing support 8, the slewing support is provided with a rocker seat 9, the two sides of the rocker seat are provided with a rocker 10, and the middle part of the rocker seat is provided with a mast 11 longitudinally. The top of the mast is provided with luffing wire ropes 12 respectively wound on the movable end of the rocker arm, and a lifting wire rope 13 is also wound on the movable end of the rocker arm. 14. The standard section 15 of the rocker arm connected to the bottom section of the rocker arm and the rocker cap 16 connected to the standard section of the rocker arm and wound with a lifting wire rope. The two sides of the middle part of the mast are respectively hinged with a rocker arm top frame 17 and A support oil cylinder 18, the movable end of the support oil cylinder is hinged on the middle part of the corresponding side rocker arm top frame.

The top of the above-mentioned mast is provided with a mast cap 19 .

The movable end of the above-mentioned hoisting wire rope is provided with a suspension hook 20 .

During implementation:

The specific implementation process of the rocker arm is as follows:

When the pole-holding double rocker arm needs to be lowered, the control part is operated to make the luffing winch rotate, the luffing wire rope is sent out, the cylinder rod is automatically pushed out under the action of pressure oil, and the rocker arm top frame is driven to rotate, pushing the rocker arm to rotate, The rocker arm can only be lowered; when the rocker arm needs to be retracted, the luffing wire rope pulls the rocker arm to retract the arm, forcing the cylinder rod to retract. Because of the damping effect generated by the resistance of the oil cylinder, the rocker arm can only be retracted with the luffing rope. Slowly withdrawing, it will not hit the mast due to the rapid retraction of the rocker arm and cause the accumulation of the luffing wire rope, thus protecting the rocker arm and the mast and ensuring the smooth rope discharge of the luffing winch and ensuring the safety of the pole holding work.

The lifting operation process of the lifting frame and oil cylinder is as follows:

1) Each standard section is divided into 3 times to complete the jacking. When the oil cylinder is in place each time (the lower plane of the support iron is 20mm higher than the upper plane of the square pin), put the 4 square pins in place, and then slowly lower the oil cylinder. After the pin bears the load, the oil cylinder can return quickly;

2) Every time the jack is lifted, the jacking beam must be reliably supported in the supporting iron. When jacking up 50mm, stop and observe. After everything is normal, return the 4 square pins, continue to lift to the position, and the square pins are pinned;

3) In this way, lift 3 times in a cycle to complete the lifting process of a standard section;

4) Then use a crane to put another standard section on the trolley, adjust the position, slowly push it into the lifting frame, use the oil cylinder to lift it up slightly, and connect it with the upper standard section, the trolley withdraws, and the oil cylinder slowly puts down. Until the standard section is placed on the base plate support, if the jacking continues, the jacking can be carried out in the above sequence. If there is no more jacking, the standard section should be fixed on the base plate support.

5) The jacking process should be carefully observed and operated carefully. If abnormalities and alarms are found, stop immediately, and continue jacking after handling.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (3)

1. A landing pole, comprising a pole main body composed of standard joints, characterized in that: the bottom of the pole main body is provided with a lifting frame, and both sides in the lifting frame are respectively provided with a jacking oil cylinder, so An operating platform is provided beside the movable end of the jacking cylinder, a pumping station and a winch joint are provided in the middle of the main body of the holding rod, and a support is provided at the upper end of the main body of the holding rod, and a slewing bearing is provided on the support. , the slewing support is provided with a rocker arm seat, a rocker arm is provided on both sides of the rocker arm seat, a mast is arranged longitudinally in the middle of the rocker arm seat, and the top of the mast is respectively wound around the rocker arm. The luffing wire rope on the end of the rocker arm is also wound with a lifting wire rope on the movable end of the rocker arm. The rocker cap connected to the standard section of the rocker arm and wrapped around the lifting wire rope. The two sides of the middle part of the mast are respectively hinged with a rocker arm top frame and a top support cylinder. The movable end of the top support cylinder is hinged on the corresponding side rocker. on the middle of the arm top frame. 2. A floor holding pole according to claim 1, characterized in that: the top of the mast is provided with a mast cap. 3. The floor holding pole according to claim 1, characterized in that: the movable end of the lifting wire rope is provided with a hook.