阅读说明：本技术 一种基于重力作用下顶底板定向测量探管及定向探测装备 (Top and bottom plate directional measurement probe tube and directional detection equipment based on gravity effect ) 是由 汲方林 田小超 王博 王岚 李渊 燕斌 蒋必辞 于 2020-04-21 设计创作，主要内容包括：本发明公开了一种基于重力作用下顶底板定向测量探管及定向探测装备,基于重力作用下顶底板定向测量探管沿轴向依次接设第一减震单元、重力偏心测量探管和第二减震单元；第一减震单元和第二减震单元共同带动重力偏心测量探管进行360°轴向自由旋转；在重力偏心作用下,重力偏心测量探管的测量方向时刻处于待测量煤层的重力垂直线上。本发明的基于重力作用下顶底板定向测量探管为重力偏心设计,并在重力偏心测量探管两端辅以滚动轴承无阻碍转动,所以在煤矿井下进行随钻钻孔轨迹测量及顶底板定向探测时,始终能保持重力偏心测量探管时刻处于上下方向,最终实现整个顺煤层钻孔轨迹及煤层顶底板定向探测。(The invention discloses a top and bottom plate directional measurement probe tube based on the action of gravity and a directional detection device, wherein the top and bottom plate directional measurement probe tube based on the action of gravity is sequentially connected with a first damping unit, a gravity eccentric measurement probe tube and a second damping unit along the axial direction; the first damping unit and the second damping unit jointly drive the gravity eccentricity measurement probe to axially and freely rotate for 360 degrees; under the action of gravity eccentricity, the measuring direction of the gravity eccentricity measuring probe is constantly positioned on a gravity vertical line of the coal bed to be measured. According to the invention, the top and bottom plate directional measurement probe pipe based on the gravity effect is designed to be gravity eccentric, and the two ends of the gravity eccentric measurement probe pipe are assisted by the rolling bearings to rotate without hindrance, so that when the drilling track measurement and the top and bottom plate directional detection are carried out in the underground coal mine, the gravity eccentric measurement probe pipe can be always kept in the up-and-down direction, and finally, the whole coal bed drilling track and the coal bed top and bottom plate directional detection are realized.)

1. A top and bottom plate directional measurement probe tube based on the gravity action is characterized in that a first damping unit (3), a gravity eccentricity measurement probe tube (4) and a second damping unit (5) are sequentially connected along the axial direction;

the first damping unit (3) and the second damping unit (5) jointly drive the gravity eccentricity measurement probe to axially and freely rotate for 360 degrees;

under the action of gravity eccentricity, the measuring direction of the gravity eccentricity measuring probe (4) is constantly positioned on a gravity vertical line of the coal seam to be measured.

2. The gravity bottom plate directional measurement probe tube according to claim 1, wherein the gravity eccentric measurement probe tube (4) is provided with a gravity eccentric tube (41), and an eccentric part (411) is arranged outside the gravity eccentric tube (41) along the axial extension and radial thickening;

the thickness of the eccentric part (411) is 3-7 mm.

3. The gravity bottom plate orientation measurement probe tube according to claim 2, wherein a module mounting body (45) is further arranged in the gravity eccentric tube (41), the module mounting body (45) is provided with at least a semi-open cavity module mounting position (452) along the axial direction, and a tubular module mounting cavity (453) is further arranged in axial communication with the module mounting position (452).

4. The gravity bottom plate orientation measurement probe according to claim 2 or 3, wherein a probe damping member (42) is further coaxially embedded in the gravity eccentric tube (41), and the probe damping member (42) is a tubular member having a plurality of damping seams axially arranged on a tube wall.

5. The gravity bottom plate orientation measurement probe according to claim 2 or 3, wherein a detector module (43), an inclinometer module (44) and a battery (46) are further sequentially arranged in the gravity eccentric pipe (41), and the battery (46) provides power for the detector module (43) and the inclinometer module (44).

6. The gravity bottom plate directional measurement probe according to claim 1, 2 or 3, wherein the first damping unit (3) is provided with a first damping head (31), a first ball bearing (34) is sleeved at the outer end of the first damping head (31), a first damping bearing sleeve (32) is sleeved on the first ball bearing (34), and a first damping sleeve (33) is embedded outside the first damping bearing sleeve (32).

7. The gravity bottom plate orientation measurement probe according to claim 6, wherein the first shock absorption head (31) is a cone-like member with an end portion gradually enlarged toward the inside, and the large diameter end of the first shock absorption head (31) is axially and hermetically connected with the gravity eccentricity measurement probe (4).

8. The gravity bottom plate orientation measurement probe according to claim 1, 2 or 3, wherein the second damping unit (5) is provided with a second damping head (51), a second ball bearing (54) is sleeved at the outer end of the second damping head (51), a second damping bearing sleeve (52) is sleeved on the second ball bearing (54), and a second damping sleeve (53) is embedded outside the second damping bearing sleeve (52).

9. The utility model provides a top bottom plate orientation is surveyed and is equipped based on action of gravity which characterized in that sets up drilling rod (1) in along the axial set up the directional survey probe tube of top bottom plate under the action of gravity.

10. The gravity-based roof and floor orientation detection equipment as claimed in claim 9, wherein the first positioning bracket (2) is coaxially embedded in the drill rod (1) at the installation end of the first damping unit (3); a second positioning bracket (6) is coaxially embedded in the drill rod (1) at the installation end of the second damping unit (5);

the first positioning support (2) is a disc hole type frame, a positioning support mounting hole (21) is formed in the center of the disc hole type frame, and a plurality of positioning support buffer cavities (22) are formed around the positioning support mounting hole (21);

the structure of the second positioning bracket (6) is the same as that of the first positioning bracket (2).

Technical Field

The invention belongs to the technical field of underground coal mine measurement while drilling instruments, and relates to a top and bottom plate directional measurement probe tube and directional detection equipment based on the action of gravity.

Background

In the existing coal mine underground coal seam top and bottom plate detection, drilling all-dimensional top and bottom plate detection is mostly adopted in the coal seam, the method has the defect of non-directional detection on the detection of the coal seam top and bottom plate, and the data measured by an in-hole probe pipe has great ambiguity when the position of the top and bottom plate is determined by post processing.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a top and bottom plate directional measurement probe and a directional detection device based on the action of gravity, so as to overcome the defects that the detection along the top and bottom plates of a coal seam is not directional, and the data measured by the probe in a hole is subjected to post-processing to determine the position of the top and bottom plates, and the like in the prior art.

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

according to the first object of the invention, the top and bottom plate directional measurement probe tube based on the gravity effect is sequentially connected with a first damping unit, a gravity eccentricity measurement probe tube and a second damping unit along the axial direction;

the first damping unit and the second damping unit jointly drive the gravity eccentricity measurement probe to axially and freely rotate for 360 degrees;

under the action of gravity eccentricity, the measuring direction of the gravity eccentricity measuring probe is constantly positioned on a gravity vertical line of the coal bed to be measured.

Optionally, the gravity eccentricity measurement probe tube is provided with a gravity eccentric tube, and the gravity eccentric tube is externally provided with an eccentric part along the axial extension and the radial thickening.

The thickness of the eccentric part is 3-7 mm, preferably 5 mm.

Optionally, a module installation body is further arranged in the gravity eccentric pipe, the module installation body is at least provided with a module installation position with a semi-open cavity along the axial direction, and a tubular module installation cavity is further axially communicated with the module installation position.

Optionally, a probe tube damping member is coaxially embedded in the gravity eccentric tube, and the probe tube damping member is a tube member with a plurality of buffer seams axially arranged on the tube wall.

Optionally, the gravity eccentric pipe is internally provided with a detector module, an inclination measuring module and a battery in sequence, and the battery provides power for the detector module and the inclination measuring module.

Optionally, the first damping unit is provided with a first damping head, a first ball bearing is sleeved at the outer end of the first damping head and wraps the first ball bearing, and a first damping bearing sleeve is embedded outside the first damping bearing sleeve.

Optionally, the first shock absorption head is a conical-like member with an inward end and an inward diameter gradually increased, and the large diameter end of the first shock absorption head is axially and hermetically connected with the gravity eccentricity measurement probe tube.

Optionally, the second damping unit is provided with a second damping head, a second ball bearing is sleeved at the outer end of the second damping head, the second ball bearing is wrapped by the second ball bearing, and a second damping sleeve is embedded outside the second damping sleeve.

Preferably, the first damping head and the second damping head are identical in structure.

According to the second object of the invention, the top and bottom plate directional detection equipment based on the gravity action is provided with a drill rod, and a top and bottom plate directional measurement probe pipe under the gravity action is axially arranged in the drill rod.

Optionally, a first positioning bracket is coaxially embedded in the drill rod at the mounting end of the first damping unit; a second positioning bracket is coaxially embedded in the drill rod at the installation end of the second damping unit;

the first positioning support is a disc hole type frame, a positioning support mounting hole is formed in the center of the disc hole type frame, and a plurality of positioning support buffer cavities are formed around the positioning support mounting hole;

the structure of the second positioning bracket is the same as that of the first positioning bracket.

Compared with the prior art, the invention has the following advantages and effects:

according to the invention, the top and bottom plate directional measurement probe tube based on the gravity effect is designed to be gravity eccentric, and the two ends of the gravity eccentric measurement probe tube are assisted by the rolling bearings to rotate without hindrance, so that when the drilling track measurement and the top and bottom plate directional detection are carried out in the underground coal mine, the gravity eccentric measurement probe tube can be always kept in the up-and-down direction, a drilling track measurement module and a layered detector module are contained in the measurement probe tube, and finally, the whole coal seam drilling track and the coal seam top and bottom plate directional detection are realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure.

FIG. 1 is a general assembly diagram of a storage while drilling type top and bottom plate directional detection device based on gravity action according to the invention;

FIG. 2 is a structural diagram of the gravity deflection tube of the present invention, with the left side of the drawing showing a left side view of the gravity deflection tube and the right side of the drawing showing a cross-sectional view A-A of the left side view of the gravity deflection tube;

FIG. 3 is a first positioning bracket structure of the present invention, with the left side of the first positioning bracket being a left side view and the right side being a cross-sectional view A-A of the left side of the first positioning bracket;

FIG. 4 is a schematic structural view of a module mounting body according to the present invention, in which a top view of the module mounting body is shown and a sectional view A-A of the top view of the module mounting body is shown;

FIG. 5 is a schematic view of a shock absorbing bearing housing according to the present invention; the lower left is a front view of the shock-absorbing bearing sleeve, the upper left is a B-B sectional view of the front view of the shock-absorbing bearing sleeve, and the lower right is an A-A sectional view of the front view of the shock-absorbing bearing sleeve;

FIG. 6 is a schematic structural view of the shock-absorbing sleeve of the present invention, wherein the left side of the figure is a left side view of the shock-absorbing sleeve, and the right side of the figure is a top view of the shock-absorbing sleeve;

the reference numerals in the figures denote: 1-a drill rod, 2-a first positioning bracket, 21-a positioning bracket mounting hole, 22-a positioning bracket buffer cavity, 3-a first damping unit, 4-a gravity eccentricity measurement probe tube, 5-a second damping unit, 6-a second positioning bracket and 7-a sealing ring;

31-a first damping head, 32-a first damping bearing sleeve, 33-a first damping sleeve, 34-a first ball bearing;

41-gravity eccentric pipe, 411-eccentric part, 412-second damping unit mounting end, 413-first damping unit mounting end, 42-probe pipe damping part, 43-detector module, 44-inclination measuring module, 45-module mounting body, 451-mounting head, 452-module mounting position, 453-module mounting cavity and 46-battery;

51-a second shock absorbing head, 52-a second shock absorbing bearing sleeve, 53-a second shock absorbing sleeve, 54-a second ball bearing.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the term "axial direction" refers to the axial direction of the intermediate shaft assembly or the two-shaft assembly, and the terms "upper", "lower", "left" and "right" in the present disclosure are based on the orientation in the drawings, and the terms "top", "bottom" and "side" are the upper, the lower and the periphery in the drawings are the "bottom" and the periphery is the "side", and the above description applies to all the contents of the present disclosure unless otherwise specified.

The invention improves the defects of the measurement mode in the prior art, adopts the gravity eccentric design of the measurement probe, the measurement probe internally comprises a drilling track measurement module and a layered detector module, and both ends of the gravity eccentric measurement probe are assisted by rolling bearings to rotate without hindrance, so that the gravity eccentric measurement probe can be always kept in the vertical direction when the drilling track measurement and the top and bottom plate directional detection are carried out under a coal mine, and the purpose of the directional detection of the whole drilling top and bottom plate is finally realized. In addition, the storage-while-drilling type roof-and-floor directional detection equipment under the action of gravity can be applied to the working conditions of drilling-while-drilling or secondary re-measurement after hole forming in the actual underground coal mine, so that the underground application range of the coal mine is widened; the storage-while-drilling type top and bottom plate directional detection equipment under the action of gravity has strong integral shock resistance, excellent, stable and reliable sealing performance and no phenomena of disconnection, short circuit or measurement data loss and the like, and is explained in detail by combining the attached drawings and a specific implementation mode:

with reference to fig. 1-6, the top-bottom plate orientation measurement probe tube based on the gravity action of the present invention is axially and sequentially connected with a first damping unit 3, a gravity eccentricity measurement probe tube 4 and a second damping unit 5; the first damping unit 3 and the second damping unit 5 together drive the gravity eccentricity measurement probe to axially and freely rotate for 360 degrees; under the action of gravity eccentricity, the measuring direction of the gravity eccentricity measuring probe 4 is constantly positioned on a gravity vertical line of the coal seam to be measured. The gravity eccentricity measurement probe tube 4 is connected and fastened with the first damping unit 3 and the second damping unit 5 through a square mechanical butt joint interface and M3X10 cross head brass screws. According to the top and bottom plate directional measurement probe tube based on the gravity effect, the two ends of the gravity eccentric measurement probe tube 4 are assisted by the rolling bearings to rotate without hindrance, so that the gravity eccentric measurement probe tube can be always kept in the up-and-down direction when the drilling track measurement and the top and bottom plate directional detection are carried out in a coal mine underground, and finally the directional detection of the whole drilling top and bottom plate is realized.

In the embodiment of the present disclosure, the gravity eccentricity measurement probe 4 is provided with a gravity eccentric tube 41, and the gravity eccentric tube 41 is externally extended in the axial direction and radially thickened with an eccentric member 411. The thickness of the eccentric part is 3-7 mm, preferably 5 mm; in the process of drilling, the coal seam top and bottom plates can be ensured to be always detected by the measuring probe; for the convenience of installation, a second damping unit installation end 412 and a first damping unit installation end 413 are respectively provided at both ends of the gravity eccentric pipe 41 to accommodate the axial butt structures with the first damping unit 3 and the second damping unit 5. In particular, a sealing ring 7 is further provided at the axial butt joint of the gravity eccentric pipe 41 with the first damping unit 3 and the second damping unit 5 for structural sealing.

In the embodiment of the present disclosure, a module mounting body 45 is further disposed in the gravity eccentric pipe 41, the module mounting body 45 is at least provided with a module mounting position 452 having a semi-open cavity along the axial direction, and a tubular module mounting cavity 453 is further disposed in axial communication with the module mounting position 452. A mounting head 451 is further provided, for example, at an end portion of the module mounting position 452 of the module mounting body 45, for fixedly connecting the module mounting body 45 of the present invention with the second damping head 51 on the second damping unit 5; the module mounting location 452 is used to mount the inclinometer module 44 of the present invention; the module installation cavity 453 is used for placing the detector module 43 (preferably, a layered detector module) and the battery 46, and preferably, a probe tube damping member 42 is further sleeved outside the detector module 43, and the modules related to detection are all firmly installed in the module installation body 45, so that the module installation cavity is stable in structure, compact in structure, good in space utilization rate and beneficial to underground data collection.

In the embodiment of the present disclosure, a probe tube damping member 42 is further coaxially embedded in the gravity eccentric tube 41, and the probe tube damping member 42 is a tubular member having a plurality of buffer slots axially formed on a tube wall. The preferred probe tube shock absorber 42 is located outside the data collection module, which facilitates shock absorption and buffering of the data collection module.

In the disclosed embodiment, a detector module 43, an inclinometer module 44, and a battery 46 are also disposed within the gravity eccentric 41 in that order, with the battery 46 providing power to the detector module 43 and the inclinometer module 44. The inclination measuring module 44 is fixed in a module mounting position 452 of the module mounting body 45 through M3X10 cross pan head brass screws, the detector module 43 is arranged in the probe tube shock absorption piece 42, and the detector module and the battery 46 are sequentially arranged in a module mounting cavity 453 of the module mounting body 45, so that a measurement component of the storage while drilling type top and bottom plate directional detection equipment based on the gravity effect is formed.

In the embodiment of the present disclosure, the first damping unit 3 is provided with a first damping head 31, a first ball bearing 34 is sleeved on the outer end of the first damping head 31, the first ball bearing 34 is wrapped by the first damping bearing sleeve 32, and a first damping sleeve 33 is embedded outside the first damping bearing sleeve 32. The first damping sleeve 33 and the first damping bearing sleeve 32 are formed by injection molding and filling, and the first ball bearing 34, the first damping head 31 and the mold injection molding are formed by inner and outer close fit molding to form a single first damping unit 3. The shock absorption function can be effectively realized for the measurement probe tube in the vibration while drilling.

In the embodiment of the present disclosure, the first shock absorbing head 31 is a conical-like member with an end portion gradually increasing toward the inner diameter, and the large diameter end of the first shock absorbing head 31 is axially and hermetically connected to the gravity eccentricity measurement probe 4. In order to facilitate the installation and the disassembly of the gravity eccentricity measurement probe 4 in the drill rod 1, the drill rod 1 is preferably a non-magnetic drill rod.

In the embodiment of the present disclosure, the second damping unit 5 is provided with a second damping head 51, a second ball bearing 54 is sleeved on an outer end portion of the second damping head 51, a second damping bearing sleeve 52 is sleeved on the second ball bearing 54, and a second damping sleeve 53 is embedded outside the second damping bearing sleeve 52. The second damping sleeve 53 and the second damping bearing sleeve 52 are formed by injection molding and filling through a mold, and the second ball bearing 54, the second damping head 51 and the mold injection molding are formed by inner and outer close fit molding to form a single second damping unit 5. The shock absorption function can be effectively realized for the measurement probe tube in the vibration while drilling.

The first ball bearing 34 and the second ball bearing 54 are preferably 61804 deep groove ball bearings. The first shock absorbing head 31 is of substantially the same construction as the second shock absorbing head 51, except that the construction is modified accordingly during adaptation to the particular axially mounted end of the gravity eccentricity measurement probe 4.

Referring to fig. 1, the top and bottom plate directional detection device based on the gravity action of the invention is provided with a drill rod 1, and a top and bottom plate directional measurement probe pipe under the gravity action is axially arranged in the drill rod 1. The storage-while-drilling type roof-and-floor directional measurement probe tube is arranged in the drill rod 1, the two ends inside the drill rod 1 are provided with fastening threads, the first positioning support 2 is respectively arranged at the two ends inside the drill rod 1 through the fastening threads at the two ends inside the drill rod 1, and therefore the storage-while-drilling type roof-and-floor directional measurement probe tube is formed on the basis of the gravity effect to detect the whole set of equipment. All parts (purchased standard parts) are formed by adopting a machining mode, and are machined and assembled according to a design drawing; the inclinometer module 44 and the detector module 43 are already components; M3X10 cross recessed pan head brass screw, first ball bearing 34,Second ball bearing 54 and seal ring 7 (O-ring seal)) The standard component is purchased by outsourcing. The storage-while-drilling type top and bottom plate directional detection equipment based on gravity has the advantages of excellent anti-seismic performance, excellent water leakage prevention performance, simple installation process operation, high anti-seismic performance and more stable and reliable circuit connection and measurement data

In the embodiment of the disclosure, a first positioning bracket 2 is coaxially embedded in the drill rod 1 at the installation end of the first damping unit 3; a second positioning bracket 6 is coaxially embedded in the drill rod 1 at the installation end of the second damping unit 5; the first positioning bracket 2 is a disc hole type frame, a positioning bracket mounting hole 21 is arranged in the center of the disc hole type frame, and a plurality of positioning bracket buffer cavities 22 are arranged around the positioning bracket mounting hole 21; the second positioning bracket 6 has the same structure as the first positioning bracket 2. The structural parts are the same, the cost can be reduced, and the inspection and the part distinguishing during the batch production are convenient.

And (3) a structure forming process:

the inclination measuring module 44 is fixed on the module mounting body 45 by using M3X10 cross pan head brass screws, a detector module 43 (a layered detector module) is arranged in the probe tube shock absorption piece 42, and the layered detector module and the battery 46 are sequentially arranged in the module mounting body 45, so that a measurement component of the storage-while-drilling type top and bottom plate directional detection equipment based on the gravity effect is formed; the first damping unit 3 is connected with the rear end of the gravity eccentric pipe 41 through threads, and the water pressure resistant seal adopts an O-shaped seal ringSealing is carried out, the second damping unit 5 is connected with the front end of the gravity eccentric pipe 41 through threads, and a whole set of storage-while-drilling type top and bottom plate directional measurement probe pipe based on the gravity effect is formed; the storage-while-drilling type roof-and-floor directional measurement probe tube is arranged in the drill rod 1, the two ends inside the drill rod 1 are provided with fastening threads, the first positioning support 2 is respectively arranged at the two ends inside the drill rod 1 through the fastening threads at the two ends inside the drill rod 1, and therefore the storage-while-drilling type roof-and-floor directional measurement probe tube is formed on the basis of the gravity effect to detect the whole set of equipment. The equipment is heavy due to the gravity eccentric pipe 41Due to the force eccentric design, when the drilling track measurement and the top and bottom plate detection are carried out in the underground coal mine, the gravity eccentric pipes 41 can be always kept in the vertical direction, and the purpose of directional detection of the whole drilling top and bottom plate is finally achieved.

After the structure is formed, firstly, the assembly structure is placed on a simulation vibration table for an anti-seismic test, secondly, a 12MPa hydrostatic test is carried out in a pressure well, and the measurement probe tube and other parts are integrally assembled under the condition of ensuring no vibration loosening and no pressure dropping, namely no water leakage after the vibration.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.