Well drilling rescue device of gas circulation system

Abstract

The invention belongs to the technical field of mining equipment, and particularly relates to a gas circulation system drilling rescue device which is characterized in that a drill rod body is of a hollow structure, a drill bit connecting rod is clamped to the drill rod body, a clamping groove is formed in the inner side of the drill rod body in the axial direction, and a clamping block is arranged on the drill bit connecting rod and can slide relative to the clamping groove; when the clamping block is located in the clamping groove, the drill rod body can drive the drill bit connecting rod to rotate simultaneously. By means of the structure, when the mud drill bit drills to the inner side of a hole from rock soil, the elastic piece in the compressed state can make the drill bit connecting rod move reversely relative to the drill rod body, the clamping relation between the drill bit connecting rod and the drill rod body is relieved, the clamping block is disengaged from the clamping groove, and at the moment, when the drill rod body continues rotating, the drill bit connecting rod is in a static state; the slurry drill bit is in a static state, and through the structure, when the drill bit drills to a cavity area from a rock layer, the drill bit automatically stops rotating, and the problems of drill jamming and water burst are avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mining equipment, and particularly relates to a gas circulation system drilling rescue device. BACKGROUND

[0002] In recent years, if dangerous situations such as water leakage in old mine, floor water inrush, roof caving, etc. occur in the mining process, rescue needs to be carried out in the well in time. At present, ground rapid drilling has become a new technology for mine rescue, which drills into the passage through a rescue drill rod and a drill bit to open a rescue passage for mine rescue. The existing rescue drill rod is generally driven to rotate by a driving disc on the drill rod, then the drill bit is slowly rotated to drill, and then the slurry in the well is transported out through the hollow channel of the drill rod. When the drill bit drills from the rock layer to the hollow area, problems such as sticking and water inrush are prone to occur. If the above problems cannot be found in time during normal drilling operation, it is easy to cause safety hazards to the construction. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a drilling rescue device which can automatically stop drilling when the drill bit enters the hollow area from the rock layer during the exploration process, so as to avoid problems such as sticking and water inrush.

[0004] To solve the above technical problems, the present application provides a gas circulation system drilling rescue device, which comprises a drill rod body, a mud pump assembly, a mud drill bit and a slurry discharge mechanism. The mud pump assembly is provided with a slurry discharge mechanism on one side, and a longitudinal through driving shaft is installed in the middle of the mud pump assembly. The drill rod body is in a hollow structure, and the lower end of the drill rod body is provided with a mud drill bit. A drill bit connecting rod is arranged between the drill rod body and the mud drill bit, and the drill bit connecting rod is connected to the drill rod body. An clamping groove is formed in the inner side of the drill rod body along the axial direction, and a clamping block is arranged on the drill bit connecting rod. The clamping block can slide relative to the clamping groove, and the drill rod body can drive the drill bit connecting rod to rotate when the clamping block is located in the clamping groove.

[0005] Further, a floating rod capable of sliding relative to the drill bit connecting rod is arranged on the inner side of the drill bit connecting rod. One end of the floating rod is connected to the driving shaft, and the other end of the floating rod penetrates a limiting plate and can slide relative to the limiting plate. The limiting plate is arranged on the inner side of the drill bit connecting rod and is fixedly connected thereto. A limiting ring is arranged on the middle part of the floating rod, and an elastic member is arranged between the limiting ring and the limiting plate.

[0006] Further, a driving sleeve is arranged on the drill bit connecting rod, and a driving disc threadedly connected to the inner side of the driving sleeve is arranged on the driving sleeve. The driving disc is sleeved on the floating rod and can freely rotate relative to the floating rod. A clamping assembly capable of limiting the rotation of the driving disc is arranged on the driving disc.

[0007] Further, the clamping assembly comprises a locking column connected with a hydraulic cylinder for driving the movement of the locking column, the hydraulic cylinder is connected with the floating rod; a plurality of locking holes are formed on the driving disc, the plurality of locking holes are even and evenly distributed along the circumference of the driving disc, when the locking column enters the inside of the locking hole, the locking column can prevent the driving disc from rotating.

[0008] Further, the locking column is sleeved on the piston rod of the hydraulic cylinder, the locking column is provided with a mounting hole, the piston rod is arranged in the inside of the mounting hole, a second elastic member is arranged between the piston rod and the locking column, the second elastic member is arranged in the inside of the mounting hole, the end of the piston rod is provided with a connecting rod, the connecting rod extends to the locking column and can slide relative to the locking column.

[0009] The drilling rod body is provided with a hollow structure, and the lower end of the drilling rod body is provided with a mud drill bit; a drill bit connecting rod is arranged between the drilling rod body and the mud drill bit, the drill bit connecting rod is clamped with the drilling rod body, a clamping groove is formed in the inside of the drilling rod body along the axial direction, a clamping block is arranged on the drill bit connecting rod, the clamping block can slide relative to the clamping groove, and the drilling rod body can drive the drill bit connecting rod to rotate simultaneously when the clamping block is located in the clamping groove. The drilling machine applies pressure to the mud drill bit through the drilling rod body, so that the drill bit connecting rod slides relative to the drilling rod body, the clamping block enters the inside of the clamping groove, and the drilling rod body can drive the mud drill bit to rotate through the drill bit connecting rod when the drilling rod body rotates, so that normal drilling work is realized; when the mud drill bit is drilled into the inside of the cavity from the rock-soil, the compressed elastic member can make the drill bit connecting rod displace relative to the drilling rod body in the opposite direction, so that the clamping relationship between the drill bit connecting rod and the drilling rod body is released, the clamping block is out of the clamping groove, and at this time, when the drilling rod body continues to rotate, the drill bit connecting rod is in a stationary state, and the mud drill bit is in a stationary state. Through the above structure, when the drill bit is drilled from the rock layer to the cavity area, the drill bit automatically stops rotating, so that the problems of sticking and water gushing are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0010] The application will be further described in detail below in combination with the drawings and specific embodiments: Figure 1 It is a structural schematic view of the application; Figure 2 It is a structural schematic view of the connection relationship between the drilling rod body and the mud drill bit in the application; Figure 3 It is a structural schematic view of the installation position relationship of the clamping assembly in the application; Figure 4 It is a local enlarged view of A in the application; In the figure: 1-drill rod body, 2-mud pump assembly, 3-mud drill bit, 4-mud discharging mechanism, 5-drill bit connecting rod, 6-clamping groove, 7-clamping block, 8-floating rod, 9-driving sleeve, 10-driving disc, 11-locking column, 12-hydraulic cylinder, 13-locking hole, 14-elastic member, 15-second elastic member, 16-mounting hole, 17-connecting rod, 18-limiting plate, 19-limiting ring. DETAILED DESCRIPTION

[0011] With reference to the accompanying drawings Figure 1 The present application provides a kind of gas circulation system drilling rescue device, including drill rod body 1, mud pump assembly 2, mud drill bit 3, mud discharging mechanism 4;Mud pump assembly 2 one side is equipped with mud discharging mechanism 4;Mud pump assembly 2 middle is installed a longitudinal through driving shaft;The drill rod body 1 is hollow structure, and the lower end of drill rod body 1 is equipped with mud drill bit 3.

[0012] See Figure 2 Drill rod body 1 is equipped with drill bit connecting rod 5 between mud drill bit 3, drill bit connecting rod 5 clamps drill rod body 1, and the inside of drill rod body 1 is equipped with clamping groove 6 along the axial direction, and drill bit connecting rod 5 is equipped with clamping block 7, clamping block 7 can slide relative to clamping groove 6, when clamping block 7 is located in clamping groove 6, drill rod body 1 can drive drill bit connecting rod 5 to rotate simultaneously, realize the function that drill rod body 1 drives mud drill bit to rotate simultaneously.

[0013] The inside of drill bit connecting rod 5 is equipped with floating rod 8 that can slide relative thereto, one end of floating rod 8 is connected driving shaft, the other end of floating rod 8 is equipped with limiting plate 18 and can slide relative thereto, limiting plate 18 is arranged in the inside of drill bit connecting rod 5 and is fixedly connected with it, and the middle part of floating rod 8 is equipped with limiting ring 19, and elastic member 14 is arranged between limiting ring 19 and limiting plate 18.

[0014] The present application is through above structure, normally, drilling rig is through drill rod body 1 to mud drill bit and exert pressure, make drill bit connecting rod 5 slide relative to drill rod body 1, and clamping block 7 enters to the inside of clamping groove 6, at this moment, elastic member 14 is in compression state, when drill rod body 1 rotates, can drive mud drill bit to rotate through drill bit connecting rod 5, realize normal drilling work;When mud drill bit drills to the inside of cavity, the compression state of elastic member 14 can make drill bit connecting rod 5 relative displacement to drill rod body 1, remove the clamping relationship of drill bit connecting rod 5 and drill rod body 1, and clamping block 7 is out of clamping groove 6, at this moment, when drill rod body 1 continues to rotate, drill bit connecting rod 5 is in stationary state, and mud drill bit is in stationary state, through above structure when drill bit is drilled to the empty area from rock layer, drill bit automatically stops rotating, avoid the problem of sticking and water gushing.

[0015] Participation Figure 3The driving sleeve 9 is arranged on the upper end of the drill bit connecting rod 5, the inner side of the driving sleeve 9 is provided with a driving disc 10 which is threadedly connected with the driving sleeve 9, the driving disc 10 is sleeved on the floating rod 8 and can rotate freely relative to the floating rod 8, the driving disc 10 is provided with a clamping assembly which can limit the rotation of the driving disc 10, the clamping assembly comprises a locking column 11 which is connected with a hydraulic cylinder 12 for driving the movement of the locking column 11, and the hydraulic cylinder 12 is connected with the floating rod 8; a plurality of locking holes 13 are formed in the driving disc 10, the plurality of locking holes 13 are even and are distributed along the circumference of the driving disc 10, and when the locking column 11 enters the inner side of the locking hole 13, the locking column 11 can prevent the driving disc 10 from rotating.

[0016] When the drill rod body 1 drives the mud drill bit to drill a hole and the hole depth needs to be finely adjusted to a specific distance, the hydraulic cylinder 12 is controlled to be in an extended state, the hydraulic cylinder 12 drives the locking column 11 to move close to the driving disc 10, since the driving sleeve 9 is connected with the drill bit connecting rod 5 and the driving disc 10 is threadedly connected with the driving sleeve 9, therefore the driving disc 10 can rotate with the drill bit connecting rod 5, when the locking hole 13 on the driving disc 10 rotates to the position of the locking column 11, the locking column 11 can enter the inner side of the locking hole 13 under the driving of the hydraulic cylinder 12, since the hydraulic cylinder 12 is connected with the mud pump assembly, therefore the locking column 11 can prevent the driving disc 10 from rotating; when the driving disc 10 stops rotating, the continuously rotating driving sleeve 9 can move downward relative to the driving disc 10, the driving sleeve 9 drives the mud drill bit to move downward through the drill bit connecting rod 5, and the depth of the hole is finely adjusted.

[0017] Preferably, the locking column 11 is sleeved on the piston rod of the hydraulic cylinder 12, the locking column 11 is provided with a mounting hole 16, the piston rod is arranged in the inner side of the mounting hole 16, a second elastic member 15 is arranged between the piston rod and the locking column 11 and in the inner side of the mounting hole 16, the end of the piston rod is provided with a connecting rod 17 which extends to the locking column 11 and can slide relative to the locking column 11. Through the above structure, the hydraulic cylinder 12 drives the locking column 11 to move close to the driving disc 10, when the locking column 11 is attached to the driving disc 10 and does not enter the locking hole 13, the displacement of the locking column 11 relative to the driving disc 10 is compensated by compressing the second elastic member 15, the second elastic member 15 is elastically stored by compression, when the locking hole 13 rotates to the position of the locking column 11 with the rotation of the driving disc 10, the locking column 11 can instantaneously enter the locking hole 13 under the action of the second elastic member 15, and the function of preventing the driving disc 10 from rotating is realized.

[0018] The present application is characterized in that the drill rod body is hollow, the lower end of the drill rod body is provided with a mud drill bit, a drill bit connecting rod is arranged between the drill rod body and the mud drill bit, the drill bit connecting rod is clamped to the drill rod body, a clamping groove is formed in the inner side of the drill rod body along the axial direction, a clamping block is arranged on the drill bit connecting rod, the clamping block can slide relative to the clamping groove, and the drill rod body can drive the drill bit connecting rod to rotate simultaneously when the clamping block is located in the clamping groove. The drilling machine applies pressure to the mud drill bit through the drill rod body, so that the drill bit connecting rod slides relative to the drill rod body, the clamping block enters the inner side of the clamping groove, and the drill rod body can drive the mud drill bit to rotate through the drill bit connecting rod when the drill rod body rotates, so that normal drilling work is realized. When the mud drill bit is drilled into the inner side of the cavity from the rock soil, the compressed elastic member can make the drill bit connecting rod displace relative to the drill rod body in the opposite direction, so that the clamping relationship between the drill bit connecting rod and the drill rod body is released, the clamping block is out of the clamping groove, and the drill bit connecting rod is in a stationary state when the drill rod body continues to rotate, and the mud drill bit is in a stationary state. Through the above structure, when the drill bit is drilled into the cavity area from the rock layer, the drill bit automatically stops rotating, so that the problems of jamming and water gushing are avoided.

[0019] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the present application should also be within the protection scope of the present application.

Claims

1. A gas circulation system drilling rescue device comprising a drill pipe body, a mud pump assembly, a mud drill bit and a mud discharge mechanism, characterized in that, The mud pump assembly is provided with a slurry discharging mechanism on one side, and a longitudinal through driving shaft is arranged in the middle of the mud pump assembly; the drill rod body is in a hollow structure, and a slurry drill bit is arranged at the lower end of the drill rod body; a drill bit connecting rod is arranged between the drill rod body and the slurry drill bit, the drill bit connecting rod is clamped to the drill rod body, an clamping groove is arranged in the inner side of the drill rod body in the axial direction, a clamping block is arranged on the drill bit connecting rod, the clamping block can slide relative to the clamping groove, and the drill rod body can drive the drill bit connecting rod to rotate simultaneously when the clamping block is located in the clamping groove.

2. A gas circulation system drilling rescue device according to claim 1, wherein, A floating rod that can slide relative to the drill bit connecting rod is arranged in the inner side of the drill bit connecting rod, one end of the floating rod is connected to the driving shaft, the other end of the floating rod penetrates through a limiting plate and can slide relative to the limiting plate, the limiting plate is arranged in the inner side of the drill bit connecting rod and is fixedly connected to the drill bit connecting rod, a limiting ring is arranged in the middle of the floating rod, and an elastic element is arranged between the limiting ring and the limiting plate.

3. A gas circulation system drilling rescue device according to claim 2, wherein, A driving sleeve is arranged on the drill bit connecting rod, a driving disc that can be threadedly connected to the driving sleeve is arranged in the inner side of the driving sleeve, the driving disc is sleeved on the floating rod and can freely rotate relative to the floating rod, and a clamping assembly that can limit the rotation of the driving disc is arranged on the driving disc.

4. A gas circulation system drilling rescue device according to claim 3, wherein, The clamping assembly comprises a locking column, a hydraulic cylinder that drives the movement of the locking column is connected to the locking column, and the hydraulic cylinder is connected to the floating rod; a plurality of locking holes are arranged in the driving disc, the plurality of locking holes are even and are uniformly distributed along the circumference of the driving disc, and the locking column can prevent the driving disc from rotating when the locking column is arranged in the inner side of the locking hole.

5. A gas circulation system drilling rescue device according to claim 4, wherein, The locking column is sleeved on the piston rod of the hydraulic cylinder, the locking column is provided with a mounting hole, the piston rod is arranged in the inner side of the mounting hole, a second elastic element is arranged between the piston rod and the locking column, the second elastic element is arranged in the inner side of the mounting hole, a connecting rod is arranged at the end of the piston rod, the connecting rod extends to the locking column and can slide relative to the locking column.

Images