阅读说明：本技术 一种取芯筒钻 (Core-taking barrel drill ) 是由 刘勇 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种取芯筒钻,包括：筒体,所述筒体的顶端设有用于和旋挖机连接的斗顶总成,所述筒体的底部设有齿圈座；岩石芯截断机构,所述岩石芯截断机构包括取芯截齿和至少一块倾斜板,所述取芯截齿设置在所述筒体内壁的下部,所述倾斜板设置在所述筒体内壁的上部,所述倾斜板的斜面朝下本发明的取芯筒钻可以更加容易的将进入筒内的岩石芯折断,避免一些不易折断的岩石芯因为无法折断,不能从钻孔中取出的问题,同时可以防止岩石芯继续上升,顶坏筒体上端的头顶总成。(The invention discloses a core-taking barrel drill, which comprises: the top end of the cylinder is provided with a bucket top assembly for being connected with a rotary excavator, and the bottom of the cylinder is provided with a gear ring seat; the core taking barrel drill comprises a barrel body, a rock core cutting mechanism and a drill bit, wherein the rock core cutting mechanism comprises a core cutting pick and at least one inclined plate, the core cutting pick is arranged at the lower part of the inner wall of the barrel body, the inclined plate is arranged at the upper part of the inner wall of the barrel body, and the inclined plane of the inclined plate faces downwards.)

1. A core barrel drill, comprising:

the top end of the cylinder is provided with a bucket top assembly for being connected with a rotary excavator, and the bottom of the cylinder is provided with a gear ring seat;

the rock core cutting mechanism comprises a coring pick and at least one inclined plate, wherein the coring pick is arranged on the lower portion of the inner wall of the cylinder body, the inclined plate is arranged on the upper portion of the inner wall of the cylinder body, and the inclined plane of the inclined plate faces downwards.

2. The core barrel drill of claim 1, wherein: the outer wall of the barrel is provided with a plurality of wear-resistant strips, the wear-resistant strips are spirally arranged on the outer wall of the barrel, and the wear-resistant strips extend from the bottom of the barrel to the top of the barrel.

3. The core barrel drill of claim 1, wherein: the bucket top assembly comprises a bucket top plate and a connecting square box, the bucket top plate is in a circular plate shape, the bucket top plate is arranged in the barrel in a sinking mode, the outer edge of the bucket top plate is welded with the inner wall of the barrel, the connecting square box is arranged on the bucket top plate, and a supporting rib plate is arranged between the connecting square box and the bucket top plate.

4. The core barrel drill of claim 3, wherein: the lower parts of the connecting square box and the supporting rib plate are all embedded in the hopper top plate in a penetrating mode, and the connecting square box and the supporting rib plate are all welded with the hopper top plate.

5. The core barrel drill of claim 3 or 4, wherein: connect the square chest and include box and reinforcement frame, week side of box is equipped with the box through-hole, the up end of box is the plane, the reinforcement frame cover is established week side of box is in order to be used for the reinforcement the box, reinforcement frame up end is the plane, and with box up end parallel and level.

6. The core barrel drill of claim 5, wherein: the box body is formed by welding four steel plates, and the support rib plate is vertically covered at the welding position of the two steel plates and is welded and fixed.

7. The core barrel drill of claim 6, wherein: the box through hole comprises a first pin hole penetrating through a group of opposite surfaces of the box, and the first pin holes are vertically arranged in a plurality.

8. The core barrel drill of claim 6, wherein: the box through hole further comprises a second pin hole penetrating through the other group of opposite surfaces of the box.

9. The core barrel drill of claim 1, wherein: the lower part of the cylinder body is provided with a plurality of observation holes.

10. The core barrel drill of claim 1, wherein: the upper part of the cylinder body is provided with a water outlet hole.

Technical Field

The invention relates to the technical field of pile hole mechanical equipment, in particular to a core taking barrel drill.

Background

Fig. 1 and 2 show a core barrel drill commonly used at present, which mainly comprises a barrel 100, a bucket top assembly 200 and a gear ring 110, and mainly has the following problems:

1. generally, the rock core entering the cylinder 100 is broken into multiple sections due to the rotation, vibration and other movements of the cylinder 100, and after the cylinder 100 is filled with the rock core, the cylinder 100 is lifted out of the pile hole, and then the rock core in the cylinder 100 is removed. However, when pile holes are formed in some hard geological layers, the strength of the formed rock core is high, and the rock core entering the cylinder 100 cannot be broken into multiple sections, so that the rock core cannot be lifted out of the pile holes along with the cylinder 100.

2. Three groups of 5 strip-shaped wear-resistant strips are uniformly distributed and welded on the outer wall of the cylinder body 100, the wear-resistant strips are not continuous, a large amount of muddy water mixture can be generated in the drilling process when geological layers containing a large amount of moisture are drilled, and when the muddy water mixture is accumulated on the outer wall of the cylinder body 100 in a large amount, a sealing interval can be formed between the bottom of the cylinder body 100 and the bottom of a pile hole, so that the cylinder body 100 is difficult to lift out of the pile hole.

3. In order to save materials and reduce cost, the existing hopper top plate 210 generally adopts a non-full circle, and the welding position of the hopper top plate 210 and the inner wall of the cylinder 100 often has a cracking condition, so that the hopper top plate 210 and the cylinder 100 fall off.

4. The connecting square box 220 and the supporting rib plate 230 are directly welded on the surface of the bucket roof plate 210, and the welding position is often cracked.

5. The connecting square box 220 is generally formed by splicing and welding four steel plates, the supporting rib plates 230 are welded at the welding positions of the two steel plates at an angle of 45 degrees, and the welding seams between the supporting rib plates 230 and the connecting square box 220 are often cracked.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a core-removing barrel drill which can cut off a rock core entering a barrel body and avoid the problem that the rock core entering the barrel body cannot be taken out of a pile hole because the rock core is not broken.

The technical scheme adopted by the embodiment of the invention is as follows: a core barrel drill, comprising:

the top end of the cylinder is provided with a bucket top assembly for being connected with a rotary excavator, and the bottom of the cylinder is provided with a gear ring seat;

the rock core cutting mechanism comprises a coring pick and at least one inclined plate, wherein the coring pick is arranged on the lower portion of the inner wall of the cylinder body, the inclined plate is arranged on the upper portion of the inner wall of the cylinder body, and the inclined plane of the inclined plate faces downwards.

The core barrel drill provided by the embodiment of the invention has at least the following beneficial effects:

1. after the rock core gets into the barrel, along with the rotation of barrel, the coring pick that sets up the lower part at the barrel inner wall can cut the outer wall of rock core always, makes the rock core fracture into the multistage more easily.

2. When the rock core continuously rises until the upper end of the rock core pushes against the inclined plane of the inclined plate, the rock core is stressed to incline, and the rock core is broken into a plurality of sections under the multiple actions of self gravity, the rotating torsion of the barrel body and mechanical vibration, so that the rock core broken and remained in the barrel body is lifted out along with the barrel body.

3. When the rock core top touches the inclined plate, the vibration of the cylinder body is strengthened, and an operator feels the strong vibration and stops drilling to avoid the rock core from continuously rising to push against and damage a head top assembly at the upper end of the cylinder body.

According to some embodiments of the invention, the outer wall of the barrel is provided with a plurality of wear strips, the wear strips are spirally arranged on the outer wall of the barrel, and the wear strips extend from the bottom of the barrel to the top of the barrel.

According to some embodiments of the invention, the bucket top assembly comprises a bucket top plate and a connecting square box, the bucket top plate is in a circular plate shape, the bucket top plate is sunk in the cylinder, the outer edge of the bucket top plate is welded with the inner wall of the cylinder, the connecting square box is arranged on the bucket top plate, and a supporting rib plate is arranged between the connecting square box and the bucket top plate.

According to some embodiments of the invention, the lower parts of the connecting square box and the supporting rib plate are embedded in the hopper top plate in a penetrating manner, and the connecting square box and the supporting rib plate are welded with the hopper top plate.

According to some embodiments of the invention, the connecting square box comprises a box body and a reinforcing frame, wherein box body through holes are formed in the periphery of the box body, the upper end surface of the box body is a plane, the reinforcing frame is sleeved on the periphery of the box body and used for reinforcing the box body, and the upper end surface of the reinforcing frame is a plane and is flush with the upper end surface of the box body.

According to some embodiments of the invention, the box body is formed by welding four steel plates, and the support rib plate is vertically covered on the welding position of the two steel plates and is welded and fixed.

According to some embodiments of the invention, the box body through hole includes a plurality of first pin holes penetrating from a set of opposite faces of the box body, and the plurality of first pin holes are vertically arranged.

According to some embodiments of the invention, the box through hole further comprises a second pin hole penetrating from another set of opposing faces of the box.

According to some embodiments of the invention, the lower portion of the barrel is provided with a plurality of viewing apertures.

According to some embodiments of the invention, the upper part of the cylinder is provided with a water outlet hole.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a core barrel drill of the type commonly used today;

FIG. 2 is a schematic view of a portion of the bucket roof assembly of FIG. 1;

FIG. 3 is a schematic structural view of a core barrel drill according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a schematic view of a portion of the bucket roof assembly of FIG. 3;

FIG. 6 is a schematic view of the construction of the joint box (a schematic view of the construction of the drill pipe section of the additional rotary excavating machine);

FIG. 7 is a schematic structural diagram of the box body formed by splicing and welding four steel plates.

Reference numerals:

a cylinder body 100, a gear ring seat 110, an observation hole 120 and a water outlet hole 130;

the hopper top assembly 200, the hopper top plate 210, the connecting square box 220, the supporting rib plate 230, the box body 221, the reinforcing frame 222, the box body through hole 223, the first pin hole 2231 and the second pin hole 2232;

a coring pick 310, an inclined plate 320;

a wear strip 400;

a connector body 710, a connector cap 720, and a connecting pin hole 730.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.