Coring cylinder for drilling and coring machine

Abstract

The utility model discloses a coring cylinder for a drilling and coring machine, which comprises an inner cylinder, a rotating shaft is fixedly arranged at the top end of the inner cylinder, a cutting gear ring is sleeved at the bottom of the outer wall of the inner cylinder, an outer cylinder is sleeved above the outer wall of the inner cylinder, an inserting hole is arranged at the top of the outer cylinder, the rotating shaft is inserted into an inner cavity of the inserting hole, and the cutting gear ring is sleeved at the bottom of the outer wall of the inner cylinder. The bottom of the outer cylinder is in threaded connection with the cutting gear ring, a plurality of grooves are formed in the contact face, located on the cutting gear ring, of the inner cylinder, protruding strips corresponding to the grooves are fixedly arranged on the inner wall of the cutting gear ring, and the protruding strips are connected to inner cavities of the grooves in a sliding mode. The utility model relates to the technical field of drilling coring machines, according to the coring cylinder, the cutting gear ring and the inner cylinder are separated, so that the cutting gear ring can be detached after the cutting gear ring is seriously abraded, the cutting gear ring can be independently replaced, the whole coring cylinder does not need to be replaced, and the use cost is reduced to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of a core drilling machine, in particular to a core barrel for a core drilling machine. Background Art

[0002] The coring machine is suitable for installing road spikes, drilling road piles, drilling coring machines, installing coring machines, drilling house pile foundations, etc. It is also suitable for coring roads for testing. It has been widely used in testing centers in various places. Since the material of the coring is often concrete or harder materials, the coring barrel is often made of harder materials. When coring, the existing coring barrel for coring machines has a considerable loss of cutting teeth due to the hard material of the sample. After a period of use, the cutting ability of the cutting teeth is reduced, and the coring barrel often needs to be replaced as a whole. The overall replacement of the coring barrel increases the cost of use to a certain extent. To this end, we provide a coring barrel for a coring machine to solve the above problems. Utility Model Content

[0003] In order to solve the above-mentioned problem, that is, to solve the problem raised by the above-mentioned background technology, the utility model proposes a coring barrel for a drilling coring machine, comprising an inner barrel, a rotating shaft is fixedly arranged at the top of the inner barrel, a cutting gear ring is sleeved on the bottom of the outer wall of the inner barrel, and an outer barrel is sleeved on the upper part of the outer wall of the inner barrel, a socket is opened on the top of the outer barrel, the rotating shaft is inserted into the inner cavity of the socket, and the bottom of the outer barrel is threadedly connected to the cutting gear ring.

[0004] Preferably, the inner cylinder is provided with a plurality of grooves on the contact surface with the cutting gear ring, and the inner wall of the cutting gear ring is fixedly provided with convex strips corresponding to the grooves, and the convex strips are slidably connected to the inner cavity of the grooves.

[0005] Preferably, the contact surface of the inner cylinder with the cutting gear ring is designed to be closed, and the inner wall of the cutting gear ring fits with the contact surface of the inner cylinder.

[0006] Preferably, groove blocks are fixedly provided on both sides of the top of the outer cylinder for rotating the threaded connection between the outer cylinder and the cutting gear ring.

[0007] Preferably, the top of the outer cylinder is threadedly connected with two corresponding anti-loosening bolts, and the threaded ends of the two anti-loosening bolts are tightly pressed against the top of the inner cylinder.

[0008] The beneficial technical effect of the utility model is that the core barrel has a separate design of the cutting gear ring and the inner barrel, so that the cutting gear ring can be disassembled after the cutting gear ring is severely worn, and the cutting gear ring can be replaced separately without replacing the entire core barrel, thereby reducing the cost of use to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown.

[0010] Figure 2 A cross-sectional structural schematic diagram of the utility model is shown.

[0011] Figure numerals: 1, inner cylinder; 11, rotating shaft; 12, groove; 2, cutting gear ring; 21, convex strip; 3, outer cylinder; 31, insertion hole; 4, slot block; 5, anti-loosening bolt. DETAILED DESCRIPTION

[0012] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0013] The utility model proposes a coring barrel for a drilling coring machine, comprising an inner barrel 1, a rotating shaft 11 is fixedly arranged on the top of the inner barrel 1, the rotating shaft 11 is used to connect with a driving device, thereby driving the coring barrel to rotate as a whole, a cutting gear ring 2 is sleeved on the bottom of the outer wall of the inner barrel 1, a separation design is adopted between the inner barrel 1 and the cutting gear ring 2, thereby the cutting gear ring 2 can be replaced separately, and an outer barrel 3 is sleeved on the upper part of the outer wall of the inner barrel 1, a socket 31 is opened on the top of the outer barrel 3, the rotating shaft 11 is inserted into the inner cavity of the socket 31, the rotating shaft 11 can be connected with the driving device through the socket 31, the bottom of the outer barrel 3 is threadedly connected with the cutting gear ring 2, the outer barrel 3 can lock and fix its cutting gear ring 2 by threaded connection with the cutting gear ring 2, thereby realizing the disassembly and assembly of the cutting gear ring 2.

[0014] Specifically, the inner cylinder 1 is provided with a plurality of grooves 12 on the contact surface with the cutting gear ring 2, and the inner wall of the cutting gear ring 2 is fixedly provided with convex strips 21 corresponding to the grooves 12. The convex strips 21 are slidably connected to the inner cavity of the grooves 12. Through the cooperation of the grooves 12 and the convex strips 21, the cutting gear ring 2 and the inner cylinder 1 can rotate synchronously.

[0015] Specifically, the contact surface of the inner cylinder 1 with the cutting gear ring 2 is designed to be closed, and the inner wall of the cutting gear ring 2 fits with the contact surface of the inner cylinder 1. This design allows the outer cylinder 3 to tighten the cutting gear ring 2 to avoid looseness.

[0016] Specifically, groove blocks 4 are fixedly provided on both sides of the top of the outer cylinder 3 for rotating the threaded connection between the outer cylinder 3 and the cutting gear ring 2. In actual use, the insert rod can be inserted into the groove block 4 to tighten the threads of the outer cylinder 3 and the cutting gear ring 2.

[0017] Specifically, the top of the outer cylinder 3 is threadedly connected with two corresponding anti-loosening bolts 5, and the threaded ends of the two anti-loosening bolts 5 are pressed against the top of the inner cylinder 1. The inner cylinder 1 is pressed against the anti-loosening bolts 5, so that the outer cylinder 3 can be stably fixed on the inner cylinder 1 to prevent the outer cylinder 3 from loosening on the outer wall of the inner cylinder 1.

[0018] Working principle: The core barrel adopts a detachable design. Through the limit between the groove 12 and the convex strip 21, the cutting gear ring 2 can be stuck on the outer wall of the inner barrel 1. The outer barrel 3 is sleeved on the outer wall of the inner barrel 1 through the threaded connection between the outer barrel 3 and the cutting gear ring 2. The outer barrel 3 is tightened by inserting the rod into the inner cavity of the groove block 4, and then the cutting gear ring 2 can be locked to the bottom of the inner barrel 1. At this time, the anti-loosening bolt 5 is tightened, and the threaded end of the anti-loosening bolt 5 is pressed against the inner barrel 1 to prevent the outer barrel 3 from loosening when rotating at high speed. This detachable cutting gear ring 2 design can be used to replace the cutting gear ring 2 separately when the teeth are worn flat and the cutting efficiency is reduced, thereby reducing the use cost of the core barrel.

[0019] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0020] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0023] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A coring barrel for a coring machine, comprising an inner barrel (1), a rotating shaft (11) being fixedly arranged at the top end of the inner barrel (1), characterized in that: A cutting gear ring (2) is sleeved on the bottom of the outer wall of the inner cylinder (1), and an outer cylinder (3) is sleeved on the upper part of the outer wall of the inner cylinder (1). An insertion hole (31) is opened on the top of the outer cylinder (3), and the rotating shaft (11) is inserted into the inner cavity of the insertion hole (31). The bottom of the outer cylinder (3) is threadedly connected with the cutting gear ring (2).

2. A coring barrel for a coring machine according to claim 1, characterized in that: The inner cylinder (1) is provided with a plurality of grooves (12) on the contact surface with the cutting gear ring (2), and the inner wall of the cutting gear ring (2) is fixedly provided with convex strips (21) corresponding to the grooves (12), and the convex strips (21) are slidably connected to the inner cavity of the grooves (12).

3. A coring barrel for a coring machine according to claim 1, characterized in that: The contact surface of the inner cylinder (1) with the cutting gear ring (2) is designed to be closed, and the inner wall of the cutting gear ring (2) fits the contact surface of the inner cylinder (1).

4. A coring barrel for a coring machine according to claim 1, characterized in that: Groove blocks (4) are fixedly provided on both sides of the top of the outer cylinder (3) for rotating the threaded connection between the outer cylinder (3) and the cutting gear ring (2).

5. The coring barrel for a coring machine according to claim 1, characterized in that: The top of the outer cylinder (3) is threadedly connected with two corresponding anti-loosening bolts (5), and the threaded ends of the two anti-loosening bolts (5) are tightly pressed against the top of the inner cylinder (1).

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