SU1677269A1 - Apparatus for cleaning rising pipes of well - Google Patents

Abstract

The invention relates to the mining industry. The goal is to increase reliability by preventing seizure during cleaning. The frame (K) 1 contains a frame (P) 2 with a polyspast system with movable 6 and non-mobile 4 blocks. The drive device is made in the form of a double-drum winch, ropes and a clamp having a spring-loaded cam 12 with a longitudinal groove. On axis 14, fixed in K 1 and passing through the groove, are installed with the possibility of axial transmission

Description

The invention relates to the mining industry.

The purpose of the invention is to increase the reliability of its operation by preventing seizure during cleaning.

FIG. 1 is a diagram of a well cleaning device; in fig. 2 - kinematic polyspast scheme of the rope system; in fig. 3 - installation diagram cutters; in fig. 4 is a layout diagram of the frame in the housing; on. 5 shows section A-A in FIG. four.

The device consists of body 1 iramy

2 mounted inside the housing 1. On the housing 1, the axis 3 of the fixed blocks 4 of the polyspast system is fixed, while the frame 2 has longitudinal grooves 5 for its free movement relative to the axis 3. The movable blocks 6 of the polyspast system are mounted on the axis 7 fixed to the frame 2 . One end of the draining rope 8 of the polyspast system is fixed on the axis

3, and the second is associated with one of the drums of the double drum winch 9 (two separate winches are possible). Lifting rope 10. connected to another winch drum is connected to axis 3 via spring 11 and cam 12, having a longitudinal groove 13. On axis 14 fixed to housing 1 and passing through groove 13 of cam 12, they are axially mounted The stepped rollers 15 are displaced by springs 16. In the frame 2, in the places where stepped rollers 15 are installed, profile laps 17 are made, the upper part of which corresponds to a smaller diameter of the stepped rollers 15 and the lower part to a larger diameter. At the bottom of the housing 1, a pipe 18 is fixed, along which fixed 19 and movable 20 rings are installed in pairs. A spring 21 is installed between the movable and stationary rings of each pair. Inside the pipe there is a ha 22, which is fixed at the lower end of the frame 2..The rings 20 that are movable relative to the pipe 18 are fixed to the ha 22. 22. The cutters 23 are installed at one end of the double shoulders 24. Double shoulders the levers 24 are hinged by the second ends on the movable rings

20, and the middle part by means of the link 25 - on the adjacent near-stationary rings 19. The number of levers with cutters is selected depending on the diameter of the well.

To increase the weight, if necessary, a weight (not shown) may be suspended at the lower end of the device.

The device works as follows.

The device can be in two positions: transport and working. Hanging on the release rope 8, (hoisting rope 10 is loose), the device is driven to the transport position by

own weight. The frame 2 moves relative to the housing 1 until the stepped rollers 15, under the action of the springs 16, enter with their large diameters into the profile grooves 17. At the same time

The ha 22 moves to the upper position, the springs 21 are compressed and the levers 24 with cutters 23 are retracted from the walls of the well. In the transport position, the device is lowered on the rope 8 into the well to the required depth.

To bring the device into working position, the hoisting cable 10 is pulled, which causes the cam 12 to move upwards, which with its wedge surfaces squeezes the stepped rollers 15,

whereupon the frame 2 together with the pull 22 is lowered under the action of the spring 21 and the levers 24 with the cutters 23 are pressed against the walls of the well. The well is cleaned by lifting the device with a rope 10 (the rope 8 is weakened).

Lifting the device without opening the cutting elements is carried out as follows. When the rope 10 is loosened, the device lowers under the action of its own weight, the frame 2 moves relative to the body until the stepped rollers 15 under the action of the springs 16 do not fit into the profile grooves 17 with their large diameters 17. The ha ha 22 moves to the upper position, the springs 21 are compressed and levers 24 with cutters 23 are retracted from the walls; the device is brought into transport 50

It can also be lowered or raised on a chute 8.

Claims (1)

Apparatus of the Invention A device for cleaning a lifting pipe of a well, comprising a housing, on the surface of which sliding work elements are placed and a drive associated with housing 55, characterized in that, in order to increase its reliability by preventing seizure during cleaning, it is provided with a frame installed inside the case, the drive is made in the form of a double-drum winch, a descent and a lifting rope, a spacing system with movable and fixed blocks on the axes and a retainer having a spring-loaded cam ok with groove m steps- 5 0 5 5 These rollers mounted on the axle with the possibility of axial movement, in the case are made shaped grooves under the frame, installed with the possibility of longitudinal movement relative to the case, and in the frame longitudinal grooves are made under the fixed blocks, the axes of which are fixed in the case, and the axes of the moving blocks are fixed on the frame , the hoisting cable is fixed at one end to the axis of the fixed blocks, and the other to one of the winch drums, the discharge cable is connected at one end to the second drum and the other to the axis of the fixed blocks through the springs The cam is cam, and the working elements are made in the form of incisors fixed on the ends of the double-arm levers. FIE1 fig-2 fie.Z HELL Ј-.  5