RU150466U1 - POLISPAST DEVICES FOR Aerial Platforms - Google Patents

Abstract

1. The tackle of the device for lifting the tower, consisting of a tackle system, which includes a crown block, hook block, tackle rope, mechanisms for attaching ropes, two pulleys mounted on the crown block, two blocks of pulleys mounted on a device for lifting the tower, two blocks of pulleys, mounted on a tower, characterized in that it is additionally equipped with two pulley blocks mounted on different axes, the first of which clings directly to the hook block, and the second pulley block is mounted on the bracket. 2. The polyspast device for lifting the tower according to claim 1, characterized in that the first block of pulleys consists of at least two pulleys. 3. The polyspast device for lifting the tower according to claim 1, characterized in that the second block of pulleys consists of three pulleys. 4. The polyspast device for lifting the tower according to claim 1, characterized in that the two pulleys from the second block are located on opposite sides of the third pulley. The polyspast of the device for lifting the tower according to claim 1, characterized in that each pulley block mounted on the device for lifting the tower consists of at least one pulley. The polyspast device for lifting the tower according to claim 1, characterized in that each pulley block mounted on the tower consists of at least one pulley.

Description

The utility model relates to drilling equipment and can be used to lift and hold on the weight of the derricks lifted from a horizontal position.

A device for lifting a derrick, described in the copyright certificate No. 840273, containing A-shaped racks with struts that are mounted on an elevated base, a rope suspension with an adapter and a bypass unit, ropes, a spacer, earrings that are fixed to the racks is known from the prior art using hinges, hoisting ropes.

The disadvantages of this technical solution is the possibility of applying this technical solution only for A-shaped towers, the use for towers with an open front face (closed rear face) is not possible. Also, the disadvantage is that in the process of lifting, the running branch and the spacer intersect, which can lead to damage to the running branch of the rope.

As the closest prototype, we consider the technical solution described in the operation manual (RE) of the M 46/320-OG-R Tower and a device for lifting the tower from a horizontal position, manufactured by Uralmash NTO Holding LLC. According to the aforementioned RE, a hoisting pulley consisting of six pulleys on racks is used to raise the tower; pulley blocks located on a strut with strut (left) and strut with strut (right); four pulleys on the tower, pulley blocks located on the tower; a pulley and a block with a thimble on the crown block; hoisting rope (diameter 32 mm) with a length of L = 650 m. The rigging of the hoisting pulley is carried out after installing the platform, sheltering the tower, sheltering the bottom of the platform and the device against falling drill candles when the tower is located on the mounting rack (H = 5400 mm). Tooling starts from the fixed end and pulls up a thin rope according to the following sequence: start from branch 1 to pulley "a" of block 2 (approach from the side of the tower axis). Branch 2 on pulley "k" of block 5 (approach from the opposite side of the tower axis). Branch 3 on pulley “b” on block 2 (approach from the side of the tower axis). Branch 4 on the pulley "and" of block 5 (approach from the opposite side of the tower axis). Branch 5 on the pulley "c" of block 2 (approach from the side of the tower axis). Branch 6 on the pulley "m" of block 4 (approach from the opposite side of the tower axis). Branch 7 on the pulley "e" of block 2 (approach from the opposite side of the tower axis). Branch 8 on the pulley "g" of block 5 (approach from the side of the tower axis). Branch 9 on pulley "d" of block 2 (approach from the opposite side of the tower axis). Branch 10 on the pulley "h" of block 5 (approach from the side of the tower axis). Branch 11 on the pulley "g" of block 2 (approach from the opposite side of the tower axis). Branch 12 on the pulley "l" of block 4 on the crown block (approach from the bottom of the pulley). Branch 13 to the bypass roller on the tower frame, then to the winch drum (figure 1.17).

The disadvantage of this technical solution is the need to dismantle the hoisting rope from the winch drum after lifting the derrick (the hoist rope has to be laid on shelters, which reduces the service life of shelters), and before lowering the derrick it is necessary to dismantle the hoist rope from the hoist and install hoisting rope with a certain effort of tension of the rope when winding on a winch drum. These shortcomings reduce the mounting ability of the winch block.

The task to which the claimed utility model is directed is to create a modern mechanism for lifting the derrick from a horizontal position, which reduces the time for lifting and installing the derrick.

The technical result provided by the claimed utility model consists in reducing time costs for installation and lifting of the derrick, as well as in the implementation of the creation of a modern mechanism for lifting the derrick from a horizontal position.

The specified technical result is achieved by the fact that the pulley of the device for lifting the tower, consisting of a tackle system, which includes a crown block, hook block, tackle rope, rope fastening mechanisms, two pulleys mounted on the crown block, two pulley blocks mounted on the device for lifting the tower , two pulley blocks mounted on the tower is additionally equipped with two pulley blocks mounted on different axes, the first of which clings directly to the hook block, and the second pulley block is mounted on the bracket.

The inventive utility model is illustrated by the following drawings:

Figure 1 and Figure 2 is a diagram of the lifting tower with a stockpiled hoist system, where:

1 - frame (part of the tower)

2 - an arm with pulleys

3 - lifting blocks

4 - bypass pulleys

5 - hook block at the beginning of the rise

6 - pulley block

7 - hoisting rope

8 - base winch block

9, 10 - devices for lifting the tower

11 - oil rig

12 - crown block

13 - winch drum

Figure 3 - scheme snap when lifting the tower

1 - frame (part of the tower)

3 - pulleys on the tower

4 - pulleys on the crown block

5 - hook block

6 - pulley block

7 - hoisting rope

7.1-7.22 - branches of the hoisting rope (direction of movement of the rope)

9.10 - pulleys on the device for lifting the tower

12 - crown block

13 - winch drum

14 - running branch

The inventive device for lifting the derrick contains a hoist system, pulleys on the crown block, pulleys on the derrick, pulleys on the rack of the device for lifting the derrick, a rope. The tackle system includes a crown block, a hook block, a bypass roller, which is located on the base of the tower block, a drawworks drum, a tackle rope, and tackle rope attachment mechanisms.

The lifting gear is equipped as follows: The dead end of the rope 7 is attached to the pulley 4, then along the branch 7.1 of the rope to the lower pulley from the pulley block 10 located on the rack of the device for lifting the tower, then along the branch 7.2 to the opposite pulley from the pulley block 3 located on the tower, branch 7.3 to the middle pulley from the pulley block 10, branch 7.4 to the second (free) pulley from the pulley block 3, along branch 7.5 to the last pulley from the pulley block 10. Next, the hoisting rope goes around the pulley on the crown block, on which the dead end, and moves on in Ethi 7.7 on a pulley block suspended from a hook block. This pulley block consists of 3 pulleys located on the bracket, 4 pulleys that engage directly with the hook block and two pulleys located on the frame. A rope running along branch 7.7 goes around one of the pulleys on the frame, then along branch 7.8 it goes around an extreme pulley suspended from the hook block, moves along branch 7.9 and goes around an extreme pulley located on an arm, then along branch 7.10 it goes around a second pulley, from pulleys suspended to the hook block, then along the branch 7.11 it bends around the middle of the pulleys located on the bracket, along the branch 7.12 it bends around the third of the pulleys suspended on the hook block and along the branch 7.13 it bends around the last of the pulleys on the bracket, then along the branch 7.14 it bends around the fourth of the pulleys directly suspended from hook loci 7.15 and branches out to a pulley on the frame, encloses it, followed by 7.16 rope branch goes around a second pulley disposed on the crown block. After that, the rope goes to the block of pulleys 9 located on the rack of the device for lifting the tower, envelopes the first of the pulleys, then along the branch 7.18 it envelops the first of the two pulleys of the block of pulleys 9 located on the tower, then along the branch 7.19 it goes around the middle pulley from the pulley block 9, then along the branch 7.20 it bends around the second pulley of the pulley block 2 and along the branch 7.21 it bends around the third pulley from the pulley block 9. Then along the branch 7.22 the rope goes to the pulley mounted on the crown block and is fixed motionless.

The polyspast device for lifting the tower works as follows:

1. The installation of the base of the tower 8.

2. The installation of the racks of the device for lifting the towers 9 and 10.

3. The drilling rig 11 is mounted in a horizontal position by the serial connection of the sections with each other, belts and braces and other metal structures are installed.

4. The crown block 12 is installed.

5. A bracket 2 with pulleys is mounted on the frame 1 (Fig. 1, 2).

6. On the 3rd and 4th sections of the tower mounted lifting blocks 3 (Fig. 1, 2).

7. On the crown block, the bypass pulleys 4 are brought out of the transport position into the working position (Figs. 1, 2).

8. The hook block is suspended from the inside of the tower 5. The crosshead 6 is suspended from the hook block 5 (Fig. 1).

9. The rigging system is being equipped (Fig. 3)

10. The rigging of the hoisting pulley of the derrick is made by lifting rope 7 (Fig. 3)

11. Pre-tensioning the hoisting rope 7.

12. When winding the hoist rope onto the winch drum 13, the hook block 5 moves towards the crown block (Fig. 1).

13. A pulley block 6 is suspended from the hook block, which moves together with the hook block.

14. The distance between the pulley block 6, mounted on the hook block and the bracket 2 with pulleys, begins to increase by pulling the hoisting rope “inward” of the derrick.

15. As a result of pulling the hoisting rope “inward” of the derrick, the distance between the hoisting blocks 3 on the derrick (on the 3rd and 4th sections) and the pulleys on the device for lifting the derrick, between the bypass pulleys on the crown block and the pulleys on the hoisting device derrick decreases, thereby lifting the derrick in a vertical position.

16. After fixing the tower in a vertical position, the bracket 2 with the pulleys is transferred to a non-working position, thereby not interfering with drilling operations.

Claims (6)

1. The tackle of the device for lifting the tower, consisting of a tackle system, which includes a crown block, hook block, tackle rope, mechanisms for attaching ropes, two pulleys mounted on the crown block, two blocks of pulleys mounted on a device for lifting the tower, two blocks of pulleys, mounted on a tower, characterized in that it is additionally equipped with two pulley blocks mounted on different axes, the first of which clings directly to the hook block, and the second pulley block is mounted on the bracket. 2. The polyspast device for lifting the tower according to claim 1, characterized in that the first pulley block consists of at least two pulleys. 3. The polyspast device for lifting the tower according to claim 1, characterized in that the second pulley block consists of three pulleys. 4. The polyspast device for lifting the tower according to claim 1, characterized in that the two pulleys from the second block are located on opposite sides of the third pulley. 5. The polyspast device for lifting the tower according to claim 1, characterized in that each pulley block mounted on the device for lifting the tower consists of at least one pulley. 6. The polyspast device for lifting the tower according to claim 1, characterized in that each pulley block mounted on the tower consists of at least one pulley.

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