阅读说明：本技术 一种岩芯管切割器 (Rock core pipe cutter ) 是由 蒙红卫 沈才明 马玉贞 孙启发 王朋 王敏 于 2019-11-12 设计创作，主要内容包括：本发明公开一种岩芯管切割器,包括架体；位于架体上呈相对设置的两个角磨机；两个角磨机被配置为两个角磨机的切割片之间留有用于放置岩芯管的间隔距离,角磨机的切割片对应岩芯管的外侧壁；岩芯管的轴向方向为第一方向,在水平面内与第一方向垂直的方向为第二方向,与第一方向以及第二方向均垂直的方向为第三方向；角磨机切割片的旋转轴沿第三方向设置；切割器还包括用于承载岩芯管的滑道,滑道沿第一方向延伸。本发明能够在钻取现场方便、快捷、准确的沿岩芯管轴向方向剖开岩芯管,剖开过程中对岩芯无任何扰动,可完全避免岩芯样品的二次污染,极大的提高了工作效率,为获取连续完整的沉积物岩芯样品提供了可靠保障,满足了研究的需要。(The invention discloses a rock core pipe cutter, which comprises a frame body; two angle grinders which are arranged oppositely on the frame body; the two angle grinders are configured to leave a spacing distance for placing the rock core tube between the cutting sheets of the two angle grinders, and the cutting sheets of the angle grinders correspond to the outer side wall of the rock core tube; the axial direction of the rock core pipe is a first direction, the direction vertical to the first direction in the horizontal plane is a second direction, and the direction vertical to both the first direction and the second direction is a third direction; the rotating shaft of the cutting blade of the angle grinder is arranged along the third direction; the cutter also includes a slide for carrying the core barrel, the slide extending in a first direction. The method can conveniently, quickly and accurately split the rock core pipe along the axial direction of the rock core pipe on the drilling site, has no disturbance to the rock core in the splitting process, can completely avoid secondary pollution of the rock core sample, greatly improves the working efficiency, provides reliable guarantee for obtaining continuous and complete sediment rock core samples, and meets the research requirement.)

1. A core barrel cutter, the cutter comprising:

a frame body for placing the core barrel;

the two angle grinders are positioned on the frame body and are oppositely arranged; the two angle grinders are configured to leave a spacing distance for placing the core barrel between cutting sheets of the two angle grinders, and the cutting sheets of the angle grinders correspond to the outer side wall of the core barrel;

defining that the axial direction of the rock core pipe is a first direction, the direction vertical to the first direction in the horizontal plane is a second direction, and the direction vertical to both the first direction and the second direction is a third direction;

the rotating shaft of the angle grinder cutting piece is arranged along a third direction;

the cutter also includes a slide for carrying the core barrel, the slide extending in a first direction.

2. The cutter of claim 1, further comprising a pressing wheel positioned above the slide in a third direction, the pressing wheel being coupled and fixed to the beam of the frame body; the rolling direction of the pressing wheel is along a first direction, and the pressing wheel is configured to be matched with the slide way to fix the core barrel in a third direction.

3. The cutter of claim 1, wherein a surface of the slide facing the core barrel is a curved surface corresponding to an outer sidewall of the core barrel; the cambered surface comprises a plurality of balls or rollers which protrude out of the surface of the cambered surface and are arranged along a first direction.

4. The cutter of claim 1, wherein in the second direction, the two angle grinders can be moved toward or away from each other.

5. The cutter of claim 1, wherein the frame comprises a frame mount for securing the angle grinder; the frame seat comprises supports which are respectively positioned at two sides of the angle grinder in the second direction, and strip-shaped holes which extend along the second direction are formed in the supports;

the angle grinder is arranged between the two supports through a fixing piece, and two end parts of the fixing piece are respectively connected and fixed on the strip-shaped hole through a bolt piece.

6. The cutter of claim 5, wherein in the second direction the slot comprises a first slot segment and a second slot segment that are not in communication with each other;

the fixing piece comprises a first connecting piece arranged corresponding to the first strip-shaped hole section and a second connecting piece arranged corresponding to the second strip-shaped hole section;

two end parts of the first connecting piece are respectively connected and fixed on the first strip-shaped hole section through bolting pieces;

and two end parts of the second connecting piece are respectively connected and fixed on the second strip-shaped hole section through bolting pieces.

7. The cutter of claim 1, wherein the ramp is secured to the frame by an adjustment bolt, the adjustment bolt being configured to be adjustable in height relative to the frame in the third direction.

8. The cutter as claimed in claim 2, wherein the pressing wheel is fixed to the beam frame of the frame body by a pressing wheel bolt, and a pressing spring is sleeved on the pressing wheel bolt and arranged between the beam frame and the pressing wheel at the edge of the pressing wheel bolt; the acting force direction of the pressure spring is along the axial direction of the pinch roller bolt.

9. The cutter of claim 1, wherein the angle grinder cutting blades have a cutting direction opposite to the direction of movement of the core barrel.

10. The cutter according to claim 1, wherein both side ends of the slide extend to the outside of the frame body.

Technical Field

The present invention relates to a cutting instrument. And more particularly, to a core barrel cutter.

Background

In the background of global warming, it is urgent to search for factors affecting global changes and regularity of global climate changes. The stratum (lake) sediments contain past abundant environment change information, and the ancient climate and the ancient environment can be reconstructed according to the information, so that the climate change rule can be summarized, and necessary background conditions and analogy modes are provided for predicting the climate and environment changes which may occur in the future. Therefore, stratum (lake) sediments are one of the main carriers in the global change research field at present.

At present, the extraction of sediments mainly depends on equipment such as a gravity drill, a piston drill and a vibration drill, plastic pipes made of PVC materials and the like are used as core pipes, and the sediments are continuously and completely taken out of a sedimentary deposit. The length of the common core tube is 2-3 meters, the sampling result is difficult to split and observe on site, the sediment is generally transported back to a laboratory for low-temperature storage after drilling, and the sample tube is split by using equipment such as a traditional core cutter and the like when research is needed, so that the sediment condition in the core tube can be seen. However, when the field drilling sampling is carried out, the phenomena of disturbance, deformation, sample (core) loss and the like are very easy to occur, so that the obtained core is discontinuous, and great difficulty is caused to the establishment of an accurate chronological sequence, for example, great manpower, material resources and financial resources are consumed for reorganizing the drilling work.

The equipment or the method for splitting the PVC core barrel at the present stage comprises the following steps: a core cutter (e.g., a core cutter produced by Avaatech, the netherlands), a steel saw to dissect the sample tube manually, and a rubber plug to eject the core, etc. However, these methods and apparatuses are very limited, mainly in that: (1) the core cutting machine is heavy, needs 220V alternating current and cannot be applied to field drilling field work (for example, the core cutting machine produced by Avataech in the Netherlands has the dead weight of 340kg, the cutting assembly is moved and driven by the rotation of a screw rod, and the noise is extremely high), and the core cutting machine can only cut core pipes with one pipe diameter; (2) in the process of manually splitting the sample tube, the disturbance of the saw blade on part of samples is difficult to avoid, so that samples at different layers are mutually polluted, time and labor are wasted, and both hands of an operator are easily injured; (3) the rubber plug is used for ejecting the core, the core has the defects of volume compression and secondary pollution in the pipe outlet process, the original structure of the deposit is damaged, the depth and deposition rate errors of the deposit are greatly increased, and the reliability of the research result is greatly reduced.

Disclosure of Invention

In view of the above, at least one object of the present invention is to provide a core barrel cutter. The cutter can conveniently, quickly and accurately cut the rock core pipe along the axial direction of the rock core pipe in a drilling site, has no disturbance to the rock core in the cutting process, can completely avoid secondary pollution of a rock core sample, greatly improves the working efficiency, provides reliable guarantee for obtaining a continuous and complete deposit rock core sample, and meets the research requirement.

In order to achieve the purpose, the invention adopts the following technical scheme:

a core barrel cutter, the cutter comprising:

a frame body for placing the core barrel;

the two angle grinders are positioned on the frame body and are oppositely arranged; the two angle grinders are configured to leave a spacing distance for placing the core barrel between cutting sheets of the two angle grinders, and the cutting sheets of the angle grinders correspond to the outer side wall of the core barrel;

defining that the axial direction of the rock core pipe is a first direction, the direction vertical to the first direction in the horizontal plane is a second direction, and the direction vertical to both the first direction and the second direction is a third direction;

the rotating shaft of the angle grinder cutting piece is arranged along a third direction;

the cutter also includes a slide for carrying the core barrel, the slide extending in a first direction.

In addition, preferably, the cutter further comprises a pressing wheel positioned above the slideway in the third direction, and the pressing wheel is combined and fixed on the beam frame of the frame body; the rolling direction of the pressing wheel is along a first direction, and the pressing wheel is configured to be matched with the slide way to fix the core barrel in a third direction.

In addition, preferably, the surface of one side of the slide way, which faces the core barrel, is an arc surface corresponding to the outer side wall of the core barrel; the cambered surface comprises a plurality of balls or rollers which protrude out of the surface of the cambered surface and are arranged along a first direction.

Furthermore, it is preferable that the two angle grinders be movable toward and away from each other in the second direction.

Furthermore, it is preferable that the frame body includes a frame seat for fixing the angle grinder; the frame seat comprises supports which are respectively positioned at two sides of the angle grinder in the second direction, and strip-shaped holes which extend along the second direction are formed in the supports;

the angle grinder is arranged between the two supports through a fixing piece, and two end parts of the fixing piece are respectively connected and fixed on the strip-shaped hole through a bolt piece.

In addition, preferably, in the second direction, the strip-shaped holes comprise a first strip-shaped hole section and a second strip-shaped hole section which are not communicated with each other;

the fixing piece comprises a first connecting piece arranged corresponding to the first strip-shaped hole section and a second connecting piece arranged corresponding to the second strip-shaped hole section;

two end parts of the first connecting piece are respectively connected and fixed on the first strip-shaped hole section through bolting pieces;

and two end parts of the second connecting piece are respectively connected and fixed on the second strip-shaped hole section through bolting pieces.

In addition, it is preferable that the slide is fixed to the frame body by an adjustment bolt, and the adjustment bolt is configured to be adjustable in height of the slide relative to the frame body in the third direction.

In addition, preferably, the pressing wheel is fixedly combined with the beam frame of the frame body through a pressing wheel bolt, a pressing spring is sleeved on the pressing wheel bolt, and the pressing spring is arranged between the beam frame at the edge of the pressing wheel bolt and the pressing wheel; the acting force direction of the pressure spring is along the axial direction of the pinch roller bolt.

Furthermore, it is preferable that the cutting direction of the cutting pieces of the angle grinder is opposite to the moving direction of the core barrel.

In addition, it is preferable that both side ends of the chute extend to the outside of the rack body.

The invention has the following beneficial effects:

compared with the prior art, the cutter provided by the invention has the advantages of small volume, light weight, easiness in carrying, convenience in assembly and disassembly and the like, the rock core pipe can be conveniently, quickly and accurately split on a drilling site, the condition of the deposit rock core can be observed at the first time, the rock core sample is not oxidized at the moment, the deposit bedding is clearer, the horizon is easier to compare, and the accurate length and depth of the sample are obtained. In addition, the cutter provided by the invention has no disturbance to the rock core in the process of splitting the rock core tube, can well avoid secondary pollution of the rock core sample, can find whether the sediment is disturbed or lost in time, greatly improves the working efficiency, provides reliable guarantee for obtaining continuous and complete sediment rock cores, and meets the research requirement.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Figure 1 shows a schematic diagram of the construction of a core barrel cutter according to the present invention.

Figure 2 shows a top view of the construction of a core barrel cutter provided by the present invention.

Figure 3 shows a schematic view of the mating of the core barrel cutter with the core barrel provided by the present invention.

Figure 4a shows a schematic of the structure of a core barrel before cutting.

Figure 4b shows a schematic of the structure of the core barrel after cutting.

Figure 4c shows a schematic of the structure of the core barrel after cutting and planing.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In order to solve many disadvantages of the existing PVC core tube splitting apparatus or method, the present invention provides a new core tube cutter, and specifically, as shown in fig. 1 to 3, the cutter provided by the present invention comprises: a frame body 1 for placing the core barrel 10;

two angle grinders 2 which are oppositely arranged are positioned on the frame body 1; the two angle grinders 2 are configured in such a way that a spacing distance for placing the core barrel 10 is reserved between the cutting sheets 21 of the two angle grinders 2, and the cutting sheets 21 of the angle grinders 2 correspond to the outer side wall of the core barrel 10;

defining that the axial direction of the core barrel 10 is a first direction, the direction perpendicular to the first direction in the horizontal plane is a second direction, and the direction perpendicular to both the first direction and the second direction is a third direction;

the rotating shaft of the cutting blade 21 of the angle grinder 2 is arranged along a third direction;

the cutter further comprises a slide 3 for carrying the core barrel 10, the slide 3 extending in a first direction.

In one embodiment, the cutter further comprises a pressing wheel 4 positioned above the slide 3 in the third direction, and the pressing wheel 4 is combined and fixed on the beam frame 11 of the frame body 1; the rolling direction of the pressing wheel 4 is along the first direction, and the pressing wheel 4 is configured to be matched with the slide 3 to fix the core barrel 10 in the third direction.

In one embodiment, in order to achieve the advantages of small size, light weight, portability, and convenient assembly and disassembly, the cutter structure provided by the present invention preferably has two side ends of the slide 3 extending to the outside of the frame body 1. On one hand, the slide way can be ensured to provide the core barrel to be cut with enough sliding distance, and on the other hand, the structural volume and the weight of the frame body can be relatively lightened by prolonging the length of the slide way.

Compared with the existing rock core tube cutting equipment, the cutter provided by the invention can be conveniently and quickly assembled before cutting, and the distance between the cutting pieces 21 of the two angle grinders 2 and the distance between the slide way 3 and the pressing wheel 4 can be adjusted according to the tube diameter of the rock core tube 10 to be cut, so that the cutting of the rock core tubes 10 with different tube diameters can be met. In addition, four points (or surfaces) can be formed by the two cutting sheets 21, the slide ways 3 and the pressing wheels 4 to fix the position of the core barrel 10, so that the core barrel is prevented from swinging in the cutting process and the cutting effect is prevented from being influenced. The invention can adjust the rotation direction of the cutting blade 21 of the angle grinder 2 at any time by utilizing the arrangement of the angle grinder 2, so as to conveniently adapt to cutting of different advancing directions of the core barrel 10. Preferably, the cutting direction of the cutting pieces 21 of the angle grinder 2 is opposite to the moving direction of the core barrel 10. For example, as shown in fig. 2 and 3, when the core barrel 10 is pushed from the left side to the right side of the chute 3, the cutting blade 21 of the angle grinder 2 located above the core barrel 10 is adjusted to rotate clockwise, and the cutting blade 21 of the angle grinder 2 located below the core barrel 10 is adjusted to rotate counterclockwise. On the contrary, when the core barrel 10 advances from the right side to the left side of the chute 3, the cutting blade 21 of the angle grinder 2 located above the core barrel 10 can be adjusted to rotate counterclockwise, and the cutting blade 21 of the angle grinder 2 located below the core barrel 10 can be adjusted to rotate clockwise. The above configuration mode can adapt to the cutting work of the core barrel under different conditions, and is greatly convenient for the sampling work for obtaining continuous and complete sediment cores.

Referring to fig. 4a to 4c, in the actual cutting process, after the cutting blades 21 of the two angle grinders 2, the slide way 3 and the pressing wheel 4 are adjusted, the distance between the cutting blades 21 of the two angle grinders 2 is preferably equal to or slightly smaller than the inner diameter of the core barrel. The core barrel 10 is placed on one side of the slideway 3 and slowly pushed to the other side along the slideway 3, when the outer side wall of the body of the core barrel 10 passes through the cutting blade 21, the pipe wall of the core barrel 10 is cut by the cutting blade, after the core barrel 10 completely passes through the cutting blade 21, the whole core barrel 10 is split into two semicircular pipe grooves, then a thin steel wire 5 can rapidly pass through the cutting gap, and the sediment core sample 100 in the core barrel 10 is split along the axial direction, so that two half-pipe sediment core samples are obtained. The cutter provided by the invention is used for cutting the core barrel, the core barrel is not disturbed in the whole cutting process, the original position of the deposit is not changed, no pollution is caused, the cutting surface of the deposit core sample is very smooth and fresh, the information such as the color, the position, the water content, the thickness of particles and the like of the deposit can be visually provided, the first-hand information is provided for a researcher on a drilling site, and the research requirement is met.

In connection with the illustrated construction, in order to avoid displacement deviations in the axial direction of the core barrel when the core barrel 10 to be cut slides along the slideway 3, in one embodiment, the surface 31 of the slideway 3 facing the core barrel is a curved surface corresponding to the outer side wall of the core barrel 10. And in order to meet the requirement that the core barrel 10 to be cut can smoothly slide along the extension direction of the slide way 3, the cambered surface comprises a plurality of rollers 32 or balls which protrude out of the surface of the cambered surface and are arranged along the first direction.

In order to enable the cutter provided by the invention to be applicable to core barrels of different pipe diameters, preferably, the two angle grinders 2 can be close to or far away from each other in the second direction. Specifically, as shown in fig. 2 and 3, the frame body 1 includes a frame seat for fixing the angle grinder; the frame seat comprises support seats 12 which are respectively positioned at two sides of the angle grinder 2 in the second direction, and strip-shaped holes extending along the second direction are formed in the support seats 12; the angle grinder 2 is arranged between two supports 12 through a fixing piece, and two ends of the fixing piece are respectively connected and fixed on the strip-shaped hole through a bolt piece.

In order to stably and firmly fix the angle grinder 2 on the support 12, in combination with the structure shown in the figure, in the invention, in the second direction, the strip-shaped hole comprises a first strip-shaped hole section 121 and a second strip-shaped hole section 122 which are not communicated with each other; the fixing piece comprises a first connecting piece 6 arranged corresponding to the first strip-shaped hole section 121 and a second connecting piece 7 arranged corresponding to the second strip-shaped hole section 122; two end parts of the first connecting piece 6 are respectively connected and fixed on the first strip-shaped hole section 121 through bolting pieces; the two ends of the second connecting member 7 are respectively fixed to the second slotted hole section 122 by bolting members. In one embodiment, the fixing members, i.e., the first connecting member 6 and the second connecting member 7, may be flat irons, and the flat irons may be fixed to the angle grinder by forming two semi-annular ring bodies on the flat irons at positions corresponding to the angle grinder.

For satisfying the cutting of different pipe diameter core barrel 10, and usable two cutting pieces 21, slide 3 and pinch roller 4 form the position of four points (or face) fixed core barrel 10, prevent the swing of core barrel in the cutting process, combine as shown in fig. 1, in an embodiment, slide 3 passes through adjusting bolt 33 combination to be fixed on support body 1, adjusting bolt 33 is configured to be in the third direction slide 3 is for the height-adjustable of support body 1 to realize changing the distance between pinch roller 4 and the slide 3, the core barrel that adapts to different pipe diameters passes through.

In a preferred embodiment, in order to provide a stable cutting platform for the core barrel 10, the pressing wheel 4 is fixed to the beam frame 11 of the frame body 1 by a pressing wheel bolt 41, and a pressing spring (not shown) is sleeved on the pressing wheel bolt 41 and is arranged between the beam frame 11 and the pressing wheel 4 at the edge of the pressing wheel bolt 41; the direction of the acting force of the pressure spring is along the axial direction of the pressure wheel bolt 41. Utilize the pressure that the pressure spring provided, pinch roller 4 can make the inseparable pressure of core barrel 10 cover on slide 3, and when core barrel 10 slided along slide 3, core barrel 10 can not the horizontal hunting from top to bottom, has guaranteed the level of the line of cut of the relative core barrel 10 of angle grinder 2, has reduced the disturbance of cutting to deposit core sample, is favorable to obtaining true and reliable deposit core sample, improves the credibility of data.

The cutter provided by the invention has the advantages of small volume, light weight, easiness in carrying, convenience in assembly and disassembly and the like, the core barrel can be conveniently, quickly and accurately split at a drilling site, the condition of the core of the sediment can be observed at the first time, the core sample is not oxidized at the moment, the sedimentary bedding is clearer, the layer position is easier to compare, and the accurate length and depth of the sample are obtained. In addition, the cutter provided by the invention has no disturbance to the rock core in the process of splitting the rock core tube, can well avoid secondary pollution of the rock core sample, can find whether the sediment is disturbed or lost in time, greatly improves the working efficiency, provides reliable guarantee for obtaining continuous and complete sediment rock cores, and meets the research requirement.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.