CN210798825U - Advanced following drilling machine - Google Patents

Abstract

The utility model discloses an advanced following drilling rig, which comprises a main beam and a main guide rail which play a supporting role, and further comprises: a support plate installed on the upper surface of the main guide rail and adapted to the guide rail; The drilling device connected at the top; the power part arranged between the main beam and the main guide rail; the power part is connected with the driving wheel assembly through the piston rod; the driving wheel assembly drives the pallet along the chain assembly through the chain assembly The axis direction of the main guide rail reciprocates. The utility model has the advantages of stable transmission, light design, no jamming during coal seam drilling, safety and reliability, and can be applied to the hanging drilling of the circumferential rock wall.

Description

A lead-following drilling rig

technical field

The utility model relates to the field of mining machinery and equipment, in particular to a leading-following drilling rig.

Background technique

During the mining process of coal mining face, the gas is relatively large, which will cause a large amount of free gas to flow out during the coal mining process. Part of the adsorbed gas will also turn into free gas and flow out. This will cause the gas to exceed the limit. Threats to the lives of people working underground. Since a large amount of gas is attached to the coal seam and has a certain pressure, and in the process of coal mining, the goaf will redistribute as the working face advances and the old roof will collapse to form pressure redistribution (that is, we often said mine pressure), which often results in the outburst of coal and gas. It also threatens the lives of the underground workers. In order to solve the above two problems, coal mines often use shallow-hole gas drainage technology, that is, drilling holes 20 to 30 meters deep in the coal seam for pressure and gas drainage. To release gas and coal seam pressure in advance. The traditional drilling rig adopts the frame type, and the whole is made of steel components. It is connected with the slider assembly by the circular guide rail or the plate guide rail, and the power head or the gripper is moved on the frame by the oil cylinder telescopic and the slider assembly sliding. The following disadvantages exist:

1. The slide rail or slideway is easy to deform;

2. The sliding is not stable, sometimes stuck, and the sound is loud;

3. The overall weight is heavy, and it is not suitable for suspension or orbits that rotate around a fixed axis;

4. The structure and operation of the hydraulic or manual gripper are more complicated, and there are potential safety hazards.

Utility model content

In view of this, the purpose of the present utility model is to provide an advance following drilling rig, which has the advantages of light weight, good guidance, safe, reliable and simple gripper, smooth transmission, low noise, and safety and reliability.

The purpose of this utility model is to realize through the following technical solutions:

A lead-following drilling rig, comprising a main beam and a main guide rail, and further comprising:

a pallet mounted on the upper surface of the main guide rail and adapted to the main guide rail;

a drilling device connected to the top end of the pallet;

a power part arranged between the main beam and the main guide rail;

The power part is connected with the driving wheel assembly through the piston rod;

The driving wheel assembly drives the pallet to reciprocate along the axis direction of the main guide rail through the chain assembly.

Further, the driving wheel assembly includes a connecting body connected with the piston rod, and a first driving wheel and a second driving wheel arranged on the connecting body.

Further, the chain assembly includes a first chain and a second chain, one end of the first chain away from the main roller assembly is movably connected with one end of the support plate, and the second chain is away from the main roller assembly One end is movably connected with the other end of the support plate.

Further, the end of the main beam close to the first driving wheel is provided with a first driven wheel that cooperates with the first driving wheel to roll.

Further, the end of the main beam close to the second driving wheel is provided with a second driven wheel that cooperates with the second driving wheel to roll.

Further, it also includes an auxiliary guide rail disposed between the main beam and the main guide rail for restricting the sliding direction of the driving wheel assembly.

Further, the drilling device includes a motor, a power head, a water braid assembly and a drill pipe which are connected in sequence, and the drill pipe is fixed on the upper surface of the main beam by a holder.

Further, the chain assembly is connected with the support plate through a chain seat.

Further, the number of the first driven wheel is at least one.

Further, the number of the second driven wheel is at least one.

The beneficial effects of the present utility model are:

The utility model has the advantages of stable transmission, light design, no jamming during coal seam drilling, safety and reliability, and can be applied to the hanging drilling of the circumferential rock wall.

Other advantages, objects and features of the present invention will be set forth in the description that follows, and to the extent that will be apparent to those skilled in the art based on a study of the following, or may be Lessons are learned from the practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the following description and claims.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be described in further detail below in conjunction with the accompanying drawings, wherein:

Accompanying drawing 1 is the full-section internal view of the utility model;

Accompanying drawing 2 is the three-dimensional view of the utility model appearance;

Accompanying drawing 3 is the structure solid diagram of the holder of the utility model;

Accompanying drawing 4 is the transmission schematic diagram of the utility model.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

The utility model proposes an advanced following drilling rig. As shown in Figures 1 and 2, an advanced following drilling rig includes a main beam 16 and a main guide rail 15, and also includes:

The pallet 10 installed on the upper surface of the main guide rail 15 and adapted to the main guide rail; the drilling device connected with the top end of the pallet 10; the power part 6 arranged between the main beam 16 and the main guide rail 15; the power part 6 It is connected with the driving wheel assembly through the piston rod 21 . The driving wheel assembly includes a connecting body 22 connected with the piston rod 21 , and a first driving wheel 5 and a second driving wheel 13 arranged on the connecting body 22 . The power part 6 of this embodiment is a pneumatic cylinder, and the main guide rail 15 is made of stainless steel wear-resistant material.

As a further improvement, one end of the first chain 2 away from the main roller assembly is movably connected to the front end of the pallet 10 , and one end of the second chain 23 away from the main roller assembly is movably connected to the rear end of the pallet 10 . One end of the main beam 16 close to the first driving wheel 5 is provided with a first driven wheel 14 that cooperates with the first driving wheel 5 to roll, and one end of the main beam 16 close to the second driving wheel 13 is provided with a second driving wheel 13 that rolls in cooperation with the second driving wheel 13 . The driven wheel 12 . It also includes an auxiliary guide rail 3 arranged between the main beam 16 and the main guide rail 15 for restricting the sliding direction of the driving wheel assembly. In this embodiment, the number of the first driven wheel 14 and the second driven wheel 12 is two, and both are distributed in the vertical direction. In this embodiment, through rational design of the positions and numbers of the first driving wheel 5 , the second driving wheel 13 , the first driven wheel 14 and the second driven wheel 12 , the moving distance of the support plate 10 is twice the moving distance of the piston rod 21 . . The chain assembly is connected to the pallet 10 through the chain seat 11 .

As a further improvement, the drilling device includes a motor 9 , a power head 8 , a water braid assembly 7 and a drill rod 4 connected in sequence, and the drill rod 4 is fixed on the upper surface of the main beam 16 by the holder 1 . As shown in FIG. 3 , the piston rod of the cylinder assembly 17 of the gripper 1 extends out, which drives the sliding plate 18 to slide up and down in the chute 19, and clamps down on the four sides of the drill rod 4. When the motor 9 is reversed , the drill rod 4 can be disassembled.

The embodiment of the present invention is as follows: as shown in FIG. 4 , when the front and rear docking positions of the drill rod 4 need to be adjusted, the piston rod of the power part 6 extends, the driving roller assembly moves forward along the sliding seat guide rail 3, and the first driving wheel 5. Rotate counterclockwise, drive the first driven wheel 14 to move clockwise through the first chain 2, thereby making the front end of the pallet 10 move forward, the second driving wheel 13 rotates clockwise, and drives the second driven wheel through the second chain 23. 12 moves counterclockwise, so that the rear end of the supporting plate 10 moves forward; the piston rod of the power part 6 retracts, the driving roller assembly moves backward along the slide rail 3, the first driving wheel 5 rotates clockwise, and passes The first chain 2 drives the first driven wheel 14 to move counterclockwise, thereby causing the front end of the pallet 10 to move backward, the second driving wheel 13 rotates counterclockwise, and the second driven wheel 12 is driven by the second chain 23 to move clockwise, and then The rear end of the pallet 10 is moved backward. When the motor 9 is rotating forward, the power head 8 provides drilling power, and the water braid assembly 7 provides drilling liquid to implement wet rock breaking. When the motor 9 rotates reversely, the front and rear distances of the drill pipe 4 are controlled to make the gripper 1 work. Remove the drill pipe.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions, and they should all be included in the scope of the claims of the present invention.

Claims (10)

1. an advance following drilling rig is characterized in that: comprise main beam and main guide rail, also comprise: a pallet mounted on the upper surface of the main guide rail and adapted to the main guide rail; a drilling device connected to the top end of the pallet; a power part arranged between the main beam and the main guide rail; The power part is connected with the driving wheel assembly through the piston rod; The driving wheel assembly drives the pallet to reciprocate along the axis direction of the main guide rail through the chain assembly. 2 . The lead-following drilling rig according to claim 1 , wherein the driving wheel assembly comprises a connecting body connected with the piston rod, and a first driving wheel and a first driving wheel and a first driving wheel arranged on the connecting body. 3 . Two driving wheels. 3 . The lead-following drilling rig according to claim 1 , wherein the chain assembly comprises a first chain and a second chain, and one end of the first chain away from the drive wheel assembly and the end of the support plate are 3 . One end is movably connected, and one end of the second chain away from the driving wheel assembly is movably connected with the other end of the support plate. 4 . The lead-following drilling rig according to claim 2 , wherein the end of the main beam close to the first driving wheel is provided with a first driven wheel that cooperates with the first driving wheel to roll. 5 . 5 . The lead-following drilling rig according to claim 2 , wherein the end of the main beam close to the second driving wheel is provided with a second driven wheel that rolls in cooperation with the second driving wheel. 6 . 6 . The lead-following drilling rig according to claim 1 , further comprising an auxiliary guide rail disposed between the main beam and the main guide rail for restricting the sliding direction of the driving wheel assembly. 7 . 7 . The lead-following drilling rig according to claim 1 , wherein the drilling device comprises a motor, a power head, a water braid assembly and a drill pipe connected in sequence, and the drill pipe is fixed by a holder. 8 . on the upper surface of the main beam. 8 . The lead-following drilling rig according to claim 3 , wherein the chain assembly is connected to the support plate through a chain seat. 9 . 9 . The lead-following drilling rig according to claim 4 , wherein the number of the first driven wheels is at least one. 10 . 10 . The lead-following drilling rig according to claim 5 , wherein the number of the second driven wheels is at least one. 11 .

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