CN210087250U

CN210087250U - Water stop sleeve for drilling machine

Info

Publication number: CN210087250U
Application number: CN201920487977.9U
Authority: CN
Inventors: 韩立权; 王亮; 王俊; 徐亮; 李志云; 张泽君
Original assignee: Datong Coal Mine Group Co Ltd
Current assignee: Datong Coal Mine Group Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-02-18
Anticipated expiration: 2029-04-11

Abstract

The utility model relates to the technical field of mining equipment, in particular to a water stop sleeve of a drilling machine; the inner pipe is sleeved with an outer pipe, the length of the inner pipe is greater than that of the outer pipe, one end of the inner pipe is welded with an inner pipe flange, and the other end of the inner pipe is screwed with a check ring; an outer pipe jackscrew baffle is welded at one end of the outer pipe adjacent to the inner pipe flange plate, and a pressing ring is welded at the other end of the outer pipe; a plurality of rubber rings which are arranged in sequence are sleeved on the inner pipe between the pressing ring and the retainer ring; an inner pipe jackscrew guide plate is welded on the inner pipe between the inner pipe flange plate and the outer pipe jackscrew baffle plate, two jackscrews are installed on the inner pipe jackscrew guide plate, water-stopping sleeve fixing plates are respectively welded at two ends of the inner pipe jackscrew guide plate, and holes are formed in the water-stopping sleeve fixing plates; the utility model discloses pneumatic frame column formula rig has not the blank of stagnant water sleeve pipe filled to rig stagnant water sleeve pipe, and the flow and the velocity of flow that can effectively control gushing water in the drilling at any time have improved the safety efficiency of probing, have guaranteed the safety in production in colliery.

Description

Water stop sleeve for drilling machine

Technical Field

The utility model relates to a mining equipment technical field, concretely relates to rig stagnant water sleeve pipe.

Background

In order to strengthen the water prevention and control work of coal mines, prevent and reduce water damage accidents and guarantee the life safety of coal mine workers, the stipulation of coal mine water prevention and control is made. The water prevention and control work should adhere to the principles of prediction and forecast, doubtful detection, detection before digging, treatment before mining. In the area of the mine threatened by water damage, the hydrogeological conditions should be checked by methods such as drilling, geophysical prospecting and chemical prospecting before tunneling the tunnel.

In the water detecting and discharging process, when water is detected in a place with the predicted water pressure of more than 0.1MPa, a sleeve is solidified in advance, a gate valve is installed at the opening of the sleeve, and the depth of the sleeve is specified in the water detecting and discharging design. When the water pressure in the drilled hole is more than 1.5MPa, drilling by adopting a counter pressure method and a method with a blowout preventer, and making measures for preventing the orifice pipe from suddenly bulging.

At present, ZQJC series pneumatic frame column type drilling machines are mainly used in underground water exploration and drainage drilling machine equipment. The drilling machine is not provided with a matched water stop sleeve, and the normal operation of water detecting and discharging work is seriously influenced.

Disclosure of Invention

The utility model provides a pneumatic frame post formula rig that solves present use in the pit does not have supporting stagnant water sleeve pipe, seriously influences the technical problem who surveys the normal clear of drainage work, provides a rig stagnant water sleeve pipe.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: a water stop sleeve for a drilling machine comprises an inner pipe and an outer pipe sleeved outside the inner pipe, wherein the length of the inner pipe is greater than that of the outer pipe, one end of the inner pipe is welded with an inner pipe flange, and the other end of the inner pipe is screwed with a check ring; an outer pipe jackscrew baffle is welded at one end of the outer pipe adjacent to the inner pipe flange plate, and a pressing ring is welded at the other end of the outer pipe; a plurality of rubber rings which are arranged in sequence are sleeved on the inner pipe between the pressing ring and the check ring, and the sum of the lengths of the plurality of rubber rings is the distance length between the pressing ring and the check ring; the inner pipe between the inner pipe flange plate and the outer pipe jackscrew baffle is welded with an inner pipe jackscrew guide plate, two jackscrews are installed on the inner pipe jackscrew guide plate, water-stopping sleeve fixing plates are welded at the two ends of the inner pipe jackscrew guide plate respectively, and a hole is formed in the water-stopping sleeve fixing plate.

Use the utility model discloses during rig stagnant water sleeve pipe, drilling is after the reaming, and the internal diameter is the same with the external diameter of outer tube, and the degree of depth is than the length weak point 0.3m of inner tube, will the utility model discloses in the stagnant water sleeve pipe fills the drilling, as shown in fig. 1, pass trompil on stagnant water sleeve pipe fixed plate 2 with the anchor rope and fix the inner tube on the rock (coal) body, rotate the jackscrew extrusion outer tube on the inner tube, through the removal of outer tube, promote the clamping ring, force the rubber ring to warp, rubber ring and drilling inner wall carry out abundant extrusion contact, make drilling inner wall and outer tube outer wall form a confined space, guarantee that the water in the drilling can not follow outer tube outer wall and flow. And finally, a water control valve is arranged on the flange plate of the inner pipe, so that the flow of water gushing in the drill hole can be effectively controlled at any time.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model discloses rig stagnant water sleeve can not influence the normal drilling of rig basic performance parameter and drill bit at the during operation. The blank that the existing pneumatic frame column type drilling machine does not have a water stop sleeve is filled, and the flow speed of water gushing in the drill hole can be effectively controlled at any time. The safety efficiency of drilling is improved, and the safety production of coal mines is guaranteed. The utility model discloses stagnant water sleeve pipe cost of manufacture is low, and the practicality is strong.

Drawings

Fig. 1 is the structure schematic diagram of the water stop sleeve of the drilling machine of the utility model.

The figures are labeled as follows:

1-inner pipe flange, 2-water stop sleeve fixing plate, 3-outer pipe jackscrew baffle, 4-rock mass, 5-jackscrew, 6-anchor cable, 7-inner pipe jackscrew guide plate, 8-inner pipe, 9-pressing ring, 10-check ring, 11-drilling hole, 12-outer pipe and 13-rubber ring.

Detailed Description

The present invention will be further described with reference to the following specific examples.

Examples

As shown in fig. 1, the water stop sleeve for the drilling machine comprises an inner pipe 8 and an outer pipe 12 sleeved outside the inner pipe 8, wherein the length of the inner pipe 8 is greater than that of the outer pipe 12, one end of the inner pipe 8 is welded with an inner pipe flange 1, and the other end of the inner pipe 8 is screwed with a check ring 10; an outer pipe jackscrew baffle 3 is welded at one end of the outer pipe 12 adjacent to the inner pipe flange plate 1, and a pressing ring 9 is welded at the other end; a plurality of rubber rings 13 which are sequentially arranged are sleeved on the inner pipe 8 which is positioned between the pressing ring 9 and the check ring 10, and the sum of the lengths of the plurality of rubber rings 13 is the distance length between the pressing ring 9 and the check ring 10; an inner pipe jackscrew guide plate 7 is welded on an inner pipe 8 positioned between the inner pipe flange plate 1 and the outer pipe jackscrew baffle plate 3, two jackscrews 5 are installed on the inner pipe jackscrew guide plate 7, a connecting line between the two jackscrews 5 passes through the central shaft of the inner pipe 8, and the model number of the jackscrew 5 is M24 multiplied by 300; and water-stopping sleeve fixing plates 2 are respectively welded at two ends of the inner pipe jackscrew guide plate 7, and holes are formed in the water-stopping sleeve fixing plates 2.

During the use, as shown in figure 1, pass on the stagnant water sleeve pipe fixed plate 2 with anchor rope 6 and open a hole and fix inner tube 8 on rock (coal) body 4, rotate jackscrew 5 extrusion outer tube 12 on the inner tube 8, through the removal of outer tube 12, promote clamping ring 9, force rubber ring 13 to warp,

rubber ring

13 and 11 inner walls of drilling carry out abundant extrusion contact, make 11 inner walls of drilling and 12 outer walls of outer tube form a confined space, guarantee that the water in the drilling 11 can not flow from outer tube 12 outer walls. And finally, a water control valve is arranged on the inner pipe flange plate 1, so that the flow of water gushing in the drill hole 11 can be effectively controlled at any time.

Further, the inner pipe 8 is a steel pipe and is a high-strength steel pipe, the inner diameter is 50mm, and the outer diameter is 60 mm; the distance between the jackscrew guide plate 7 and the inner pipe flange plate 1 is 10 cm. The length is designed according to the requirements in the regulation on water prevention and control in coal mines, and in order to facilitate underground transportation, the inner pipe 8 is formed by connecting a plurality of pipes with the length of 2.5-3.0 m, and every two sections are connected through screw threads.

Further, the outer pipe 12 is a steel pipe, and is a high-strength steel pipe, the inner diameter is 80mm, the outer diameter is 89mm, and the length of the outer pipe 12 is 0.8-1m shorter than that of the inner pipe 8, and can be 0.8m, 0.9m or 1 m.

Further, the jackscrew guide plate 7, the outer pipe jackscrew baffle 3, the pressing ring 9 and the check ring 10 are all made of 15mm thick steel plates, and the water stop sleeve fixing plate 2 is made of 10mm thick steel plates.

Claims

1. A rig stagnant water sleeve pipe which characterized in that: the pipe joint comprises an inner pipe (8) and an outer pipe (12) sleeved on the outer side of the inner pipe (8), wherein the length of the inner pipe (8) is larger than that of the outer pipe (12), one end of the inner pipe (8) is welded with an inner pipe flange (1), and the other end of the inner pipe (8) is screwed with a check ring (10); an outer pipe jackscrew baffle (3) is welded at one end of the outer pipe (12) adjacent to the inner pipe flange (1), and a pressing ring (9) is welded at the other end; a plurality of rubber rings (13) which are arranged in sequence are sleeved on the inner pipe (8) which is positioned between the pressing ring (9) and the check ring (10), and the sum of the lengths of the plurality of rubber rings (13) is the distance length between the pressing ring (9) and the check ring (10); the inner pipe is located and has inner tube jackscrew deflector (7) on inner tube (8) between inner tube ring flange (1) and outer tube jackscrew baffle (3), and installs two jackscrews (5) on inner tube jackscrew deflector (7), stagnant water sleeve pipe fixed plate (2) have still been welded respectively at the both ends of inner tube jackscrew deflector (7), trompil on stagnant water sleeve pipe fixed plate (2).

2. The rig water stop sleeve of claim 1, wherein: the inner pipe (8) is a steel pipe, the inner diameter is 50mm, and the outer diameter is 60 mm; the distance between the jackscrew guide plate (7) and the inner pipe flange plate (1) is 10 cm.

3. The rig water stop sleeve of claim 2, wherein: the outer pipe (12) is a steel pipe, the inner diameter is 80mm, the outer diameter is 89mm, and the length of the outer pipe (12) is 0.8-1m shorter than that of the inner pipe (8).

4. The rig water stop sleeve of claim 3, wherein: the jackscrew guide plate (7), the outer tube jackscrew baffle (3), the pressing ring (9) and the check ring (10) are all made of 15mm thick steel plates, and the water stop sleeve fixing plate (2) is made of 10mm thick steel plates.