CN205154040U - Drilling derrick upper segment folding mechanism upright walks - Google Patents

Abstract

The utility model discloses a drilling derrick upper segment folding mechanism upright walks, derrick are divided into the multistage, and wherein in derrick upper segment and derrick between the upper segment, the upper segment front column is articulated through the fixed otic placode of two sets of derrick stands in derrick upper segment front column and the derrick, and the upper segment rear column is articulated through the fixed otic placode of other two sets of derrick stands in derrick upper segment rear column and the derrick, be fixed with hydro -cylinder respectively and connect the otic placode on two derrick upper segment front columns, common fixed mounting has a hydro -cylinder brace table on the upper segment front column in two derricks, is fixed with the fixed otic placode of a hydro -cylinder respectively on the front end both sides of hydro -cylinder brace table, and the fixed otic placode of every hydro -cylinder is connected with the hydro -cylinder and is connected with a hydro -cylinder between the otic placode. The utility model has the advantages of simple structure, convenient operation.

Description

A folding mechanism for the upper section of the derrick of an upright walking drilling rig

technical field

The utility model belongs to the technical field of petroleum machinery and relates to a folding mechanism for the upper section of a derrick of an upright walking drilling rig.

Background technique

The derrick of the upright walking drilling rig is upright, and transport tires are installed under the base. Under the action of the tractor or its own power, it can move in the flat oilfield mining area as a whole. When the drilling rig is in the overall transportation state, the height is about 50 meters. During the movement of the drilling rig, there must be no obstacles within the range of 50 meters in the moving direction. However, there are often obstacles such as high-altitude power cables in the open oil area. It hinders the overall relocation of the drilling rig. This requires the design of the drilling rig to consider reducing the overall transportation height of the drilling rig under certain circumstances, so that the upper section of the derrick of the drilling rig can be folded and the height of the derrick can be lowered so that the drilling rig can pass through high-altitude obstacles smoothly.

Utility model content

The purpose of the utility model is to provide a folding mechanism for the upper section of the derrick of an upright drilling rig, which solves the problem that the upright drilling rig in the prior art cannot pass through obstacles such as high-altitude cables.

The technical solution adopted by the utility model is a folding mechanism for the upper section of the derrick of an upright walking drilling rig.

The front column of the upper section of the derrick and the front column of the middle and upper section of the derrick are hinged through two sets of derrick column fixing ear plates, and the rear column of the upper section of the derrick and the rear column of the middle and upper section of the derrick are hinged through another two sets of derrick column fixing ear plates; An oil cylinder connecting ear plate is fixed, and an oil cylinder supporting platform is fixedly installed on the front columns of the upper and middle sections of the two derricks, and an oil cylinder fixing ear plate is respectively fixed on both sides of the front end of the oil cylinder supporting platform, and each oil cylinder fixing ear plate is connected with the oil cylinder An oil cylinder is connected between the connecting ear plates.

The folding mechanism of the upper section of the derrick of the upright walking drilling rig of the utility model is also characterized in that:

The lower part of the oil cylinder support table is provided with a support rod.

The beneficial effect of the utility model is that when the drilling rig walks upright, the upper section of the derrick can be folded from the upright state to the horizontal state, the automatic folding of the upper section of the derrick can be realized, the transportation height of the drilling rig can be effectively reduced, and the drilling rig can smoothly pass through high-altitude obstacles and reach the New well location.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model derrick upper section in a vertical state;

Fig. 2 is a structural schematic diagram of the upper section of the derrick of the utility model in a folded state.

In the figure, 1. The front column of the upper section of the derrick, 2. The rear column of the upper section of the derrick, 3. The front column of the upper middle section of the derrick, 4. The rear column of the upper section of the derrick, 5. The connecting ear plate of the oil cylinder, 6. The oil cylinder, 7. The supporting platform of the oil cylinder, 8. Oil cylinder fixed ear plate, 9. Derrick column fixed ear plate.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 and Fig. 2, the structure of the utility model is that the derrick is divided into multiple sections, wherein between the upper section of the derrick and the upper middle section of the derrick, the front column 1 of the upper section of the derrick and the front column 3 of the upper middle section of the derrick are fixed by two sets of derrick columns. 9 are hinged together, the rear column 2 of the upper section of the derrick and the rear column 4 of the middle and upper section of the derrick are hinged together through another two sets of fixing ear plates 9 for the column of the derrick; there is an oil cylinder connection ear fixed (welded) on the front column 1 of the two upper sections of the derrick respectively The plate 5 is jointly fixed with an oil cylinder support platform 7 on the front column 3 of the middle and upper section of the two derricks. An oil cylinder fixed ear plate 8 is respectively fixed (welded) on both sides of the front end of the oil cylinder support platform 7, and an oil cylinder 6 is connected between each oil cylinder fixed ear plate 8 and the oil cylinder connection ear plate 5.

The oil cylinder supporting platform 7 is not only used to support the fixed oil cylinder 6, but also can be used as a workbench for maintaining the oil cylinder and dismounting the oil cylinder 6. Two oil cylinders 6 are simultaneously connected with the pressure supply system.

The working process of the present utility model is,

1) When the drilling rig is walking upright, the piston rods of the two oil cylinders 6 are in the state of maximum extension, the upper section of the derrick and the middle and upper section of the derrick are fixed together by the four derrick column fixing lugs 9 and their pins, and the upper section of the derrick is in the vertical position. state, as shown in Figure 1.

2) When the drilling rig reaches the place where there is an obstacle, disassemble the pins in the two sets of derrick column fixing ear plates 9 between the rear column 2 of the upper section of the derrick and the rear column 4 of the middle and upper section of the derrick, and slowly retract the two oil cylinders 6 at the same time The piston rod makes the upper section of the derrick rotate around the pin shafts in the two derrick column fixing ear plates 9 between the front column 1 of the upper section of the derrick and the front column 3 of the upper section of the derrick under the hydraulic tension of the oil cylinder 6, and the piston rod of the oil cylinder 6 rotates at the same time Play a supporting role until the upper section of the derrick turns to a horizontal state, thereby lowering the maximum transport height of the drilling rig and passing through high-altitude obstacles, as shown in Figure 2.

3) After the drilling rig passes through the high-altitude obstacle, the hydraulic pressure is used to slowly extend the piston rod of the oil cylinder 6, so that the upper section of the derrick is under the action of the thrust of the oil cylinder 6, relying on the two front columns 1 and 3 between the front column 1 of the upper section of the derrick and the front column 3 of the middle and upper section of the derrick. The pin shaft of the derrick column fixed ear plate 9 rotates, and the upper section of the derrick is returned to the vertical state, as shown in Figure 1, and can be moved to a new well position.

Claims (2)

1. walk upright a drilling derrick epimere fold mechanism, and derrick is divided into multistage, wherein between epimere, it is characterized in that in derrick epimere and derrick:

It is hinged that derrick epimere front column (1) and epimere front column (3) in derrick fix otic placode (9) by two groups of derrick columns, and it is hinged that derrick epimere rear column (2) and epimere rear column (4) in derrick fix otic placode (9) by another two groups of derrick columns; Two derrick epimere front columns (1) are fixed with an oil cylinder respectively and connect otic placode (5), in two derricks, epimere front column (3) is installed with jointly an oil cylinder brace table (7), be fixed with an oil cylinder respectively on the both sides, front end of oil cylinder brace table (7) and fix otic placode (8), each oil cylinder is fixed otic placode (8) and is connected with oil cylinder between otic placode (5) and is connected with an oil cylinder (6).

2. the drilling derrick epimere fold mechanism that walks upright according to claim 1, is characterized in that: described oil cylinder brace table (7) bottom is provided with support bar.