Sample preparation device for shaped refractory material heat-conducting sample

Abstract

The sample preparation device comprises a drill cylinder, one end of the drill cylinder is of an open structure, a saw-toothed tool bit is arranged at the edge of the open end, a plurality of slopes are arranged on the inner wall of the drill cylinder, and the slopes extend from the middle of the cylinder wall of the drill cylinder to the open end. The vertical line distance from the slope surface to the center line of the drilling barrel is gradually reduced from inside to outside; according to the utility model, the design structure is reasonable, on one hand, the problems of poor precision, tedious working procedures and poor safety during the manufacturing of a traditional split type sample can be solved, on the other hand, the situation that the sample is retained in the drill cylinder can be avoided, the sample can be quickly taken out from the drill cylinder, and the sample preparation convenience and the sample preparation precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heat conduction sample production, and particularly relates to a sample preparation device for heat conduction sample of shaped refractory material. BACKGROUND

[0002] Thermal conductivity is a physical property representing the heat conduction capacity of refractory material, and the commonly used measurement method is the water flow flat plate method. When the shaped refractory material product is subjected to the water flow flat plate method for heat conduction coefficient determination, it needs to be made into a circular sample with a diameter of (160-180) mm x (10-25) mm. The traditional sample preparation method is to cut the sample into a middle part with a length of 180 mm and a width of not less than 80 mm, and then cut two arc-shaped parts on both sides to form a circular sample with a diameter of 160-80 mm (such as Figure 4 ). This sample preparation method is complicated and dangerous, and needs to be cut multiple times, and the circular arc cannot be guaranteed to be accurate. In order to solve the above problems, the existing technology also uses a hole drill to cut the shaped refractory material. Although this method can solve the problem of inaccurate traditional circular arc, the prepared sample is easy to be stuck in the hole drill and cannot be taken out, which also brings inconvenience to the sample preparation work. SUMMARY

[0003] The utility model provides a kind of for shaped refractory material heat conduction sample sample preparation device, one aspect can solve the problem of poor accuracy, cumbersome process and poor safety of traditional split sample during production, another aspect can also avoid the situation that sample is stuck in drill cylinder, is conducive to the sample is quickly taken out from drill cylinder inside, improve the convenience of sample preparation and the accuracy of sample preparation.

[0004] The utility model employs the technical scheme that a kind of for shaped refractory material heat conduction sample sample preparation device, including drill cylinder, the open end structure is formed in one end of drill cylinder, and sawtooth-shaped cutter head is arranged at the edge position of open end, and the inner wall position of drill cylinder is equipped with several inclined surfaces, and inclined surface extends from the middle of drill cylinder barrel wall to the direction of open end, and the perpendicular distance of inclined surface to drill cylinder center line gradually decreases from inside to outside.

[0005] The two inclined surfaces are arranged on the inner wall of the drill cylinder, and the two inclined surfaces are uniformly distributed around the center of the drill cylinder.

[0006] The drill cylinder is provided with a plurality of through holes uniformly distributed around the center of the drill cylinder in the circumferential direction.

[0007] The other end of the drill cylinder away from the opening is provided with a cover, and the outer center position of the cover is provided with a connecting part.

[0008] The cover is integrally connected with the drill cylinder, or the cover is detachably connected with the drill cylinder.

[0009] The slope surface and the inner wall of the drill cylinder are smoothly connected.

[0010] The utility model discloses the beneficial effect is:

[0011] The utility model discloses the design structure is reasonable, one aspect can solve the precision difference, the process cumbersome and the poor safety problem of traditional split type sample in the production, another aspect can also avoid the situation that the sample is detained in the drill cylinder, is favorable to the sample fast taking out from the drill cylinder interior, improves the convenience of sample preparation and the precision of sample preparation. DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is the perspective view of the utility model;

[0014] Figure 3 It is the sectional view of the utility model;

[0015] Figure 4 It is the forming diagram of prior art sample.

[0016] Among them:

[0017] 1, drill cylinder;2, cover;3, connecting portion;4, through -hole;5, slope surface;6, cutter head. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0019] As shown in the figure, a kind of for shaped refractory material heat conducting sample preparation device, including drill cylinder 1, one end of drill cylinder 1 is open structure, and the edge position of open end is provided with sawtooth cutter head 6, and the inner wall position of drill cylinder 1 is equipped with several slope surfaces 5, slope surface 5 extends from the middle of drill cylinder 1 barrel wall to the direction of open end, and the perpendicular distance of slope surface 5 to the center line of drill cylinder 1 gradually decreases from inside to outside;Since slope surface 5 extends from inside to outside, so that the thickness of part cutter head 6 close to slope surface 5 position increases, compared to the thickness of cutter head 6 on other positions, the thickness of the size of the increased cutter head 6 is the thickness of the cutter head 6 where slope surface 5 is located, as Figure 3As shown, when the sample is cut, the radius of the sample is less than or equal to the vertical distance between the lowest point of the slope surface 5 and the center line of the drill cylinder 1, on the one hand, after the sample cutting is completed, the diameter of the sample can be smaller than the hollow inner diameter of the drill cylinder 1, avoiding the problem of the sample being stuck inside the drill cylinder 1, on the other hand, the sample can also be easily taken out from the inside of the drill cylinder 1 because there are fewer areas on the drill cylinder 1 that are close to the diameter of the sample, thereby improving work efficiency.

[0020] The slope surface 5 is provided with two on the inner wall of the drill cylinder 1, and the two slope surfaces 5 are uniformly distributed around the center of the drill cylinder 1, so as to avoid the problem of the cutting head 6 near the slope surface 5 being easily damaged during cutting, and the stress on the cutting head 6 at each part of the end of the drill cylinder 1 can be uniform; and the fewer the number of slope surfaces 5, the more convenient the process of taking out the sample from the inside of the drill cylinder 1.

[0021] The drill cylinder 1 is provided with a plurality of through holes 4 uniformly distributed around the center of the drill cylinder 1 in the circumferential direction, which is used to realize air circulation during sample cutting, avoiding excessive pressure in the inner cavity of the drill cylinder 1, and on the other hand, a rod-shaped object can be inserted into the through hole 4 during sampling, thereby assisting the rapid removal of the sample.

[0022] The other end of the drill cylinder 1 away from the opening is provided with a cover 2, and the outer center of the cover 2 is provided with a connecting part 3 which can be made into an external thread structure or a square head structure, which is used to realize connection with a drilling motor or other equipment.

[0023] In one embodiment, the cover 2 is integrally connected with the drill cylinder 1, so that the drill cylinder 1 has high mechanical strength and is not easy to be damaged.

[0024] In another embodiment, the cover 2 is detachably connected with the drill cylinder 1, for example, the cover 2 can be fixed on the drill cylinder 1 in a threaded or bolted manner, which is used to remove the cover 2 when the sample cannot be taken out from the drill cylinder 1, thereby facilitating the removal of the sample.

[0025] The slope surface 5 and the inner wall of the drill cylinder 1 are smoothly transitioned, which is used to avoid the problem of the sample being stuck at the position of the slope surface 5 of the drill cylinder 1 during sampling.

[0026] The sample preparation device for shaped refractory material heat conduction sample is connected with the driving device through the connecting part 3 during use, and the drill cylinder 1 is driven to rotate, and the shaped refractory material is cut during the rotation of the drill cylinder 1, the cutter head 6 can rotate around the central axis of the drill cylinder 1 during cutting, and the cutter head 6 close to the slope surface 5 can cut the sample diameter to less than the middle inner hole of the drill cylinder 1, so that the sample is not stuck in the drill cylinder 1 after cutting is completed. And since the number of slope surfaces 5 is two, that is, the vertical distance between the outermost position close to the slope surface 5 on the drill cylinder 1 and the center line of the drill cylinder 1 is consistent with the radius of the sample, so that the sample can be easily taken out from the drill cylinder 1, and the whole sample preparation work is completed.

[0027] The above merely describes the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for preparing a shaped refractory heat conducting sample, comprising a drill cylinder, one end of which is open, and a serrated cutting head is provided at the edge of the open end, characterized in that, The inner wall of the drill cylinder is provided with a plurality of slope surfaces, which extend from the middle of the cylinder wall to the opening end, and the vertical distance from the slope surface to the center line of the drill cylinder gradually decreases from the inside to the outside.

2. A device for preparing a shaped refractory thermally conductive test specimen according to claim 1, characterized in that The slope surfaces are two, and are evenly distributed around the center of the drill cylinder.

3. A device for preparing a shaped refractory thermally conductive test specimen according to claim 1, characterized in that A plurality of through holes are arranged in the circumferential direction of the drill cylinder and are evenly distributed around the center of the drill cylinder.

4. A device for preparing a shaped refractory thermally conductive test specimen according to claim 1, characterized in that The other end of the drill cylinder away from the opening is provided with a cover, and the outer center of the cover is provided with a connecting part.

5. A device for preparing a shaped refractory thermally conductive test specimen according to claim 4, characterized in that The cover is integrally connected with the drill cylinder, or the cover is detachably connected with the drill cylinder.

6. A device for preparing a shaped refractory thermally conductive test specimen according to claim 1, characterized in that The slope surface and the inner wall of the drill cylinder are smoothly connected.

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