Drill rod detection tool

Abstract

The utility model relates to the technical field of measuring equipment, and discloses a drill rod detection tool, which comprises a main body structure comprising a first structural member, a second structural member and a connecting member, the first structural member and the second structural member are both provided with detection parts matched with clamping grooves, and the connecting member is used for connecting the first structural member and the second structural member. The main body structure is sleeved on the drill rod; the adjusting structure penetrates through the main body structure to abut against the drill rod penetrating through the main body structure, and the adjusting structure is used for adjusting the concentricity of the main body structure and the drill rod; and the measuring structure is used for measuring the distance between the detection part and the wall of the clamping groove. According to the drill rod detection tool, the tool can be used as a professional measuring tool of the drill rod clamping grooves, the distance between the groove walls of the clamping grooves and the detection part is easily measured, then the included angles between the clamping grooves are calculated, the detection efficiency is high, and the detection cost is low; the detection tool is simple in structure, convenient to carry, low in manufacturing cost and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to a drill pipe testing fixture. Background Technology

[0002] Drill pipes are crucial and numerous in mining operations. Multiple slots are spaced around the circumference of the drill pipe's outer wall, and the angles between these slots are critical. If the angle exceeds a certain range, it can lead to equipment damage or even personnel injury. Currently, these angles cannot be directly measured using general measuring tools; they must be inspected on a machine tool or coordinate measuring machine after machining. However, inspection on machine tools or coordinate measuring machines is costly, time-consuming, and inconvenient. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a drill pipe inspection fixture that is low in cost, lightweight, and easy to operate, thereby improving the inspection efficiency of drill pipe slots and reducing inspection costs.

[0004] The drill pipe testing fixture according to an embodiment of the present invention includes:

[0005] The main structure includes a first structural component, a second structural component, and a connecting component. Both the first structural component and the second structural component are provided with a detection part that matches the slot. The connecting component is used to connect the first structural component and the second structural component so that the main structure is fitted onto the drill rod.

[0006] An adjustment structure passes through the main structure to abut against the drill pipe that passes through the main structure; the adjustment structure is used to adjust the concentricity of the main structure and the drill pipe.

[0007] A measuring structure is used to measure the distance between the detection part and the card slot wall.

[0008] The drill pipe inspection fixture according to the embodiments of this utility model has at least the following beneficial effects:

[0009] The testing fixture of this embodiment can serve as a professional measuring tool for drill pipe chucks, easily measuring the distance between the chuck wall and the testing part, and then calculating the included angle between adjacent chucks. It has the advantages of high testing efficiency and low testing cost. The testing fixture of this embodiment only includes three main components: the main structure, the adjustment structure, and the measuring structure. It has a simple structure, is easy to carry, has low manufacturing cost, and is easy to operate.

[0010] According to some embodiments of the present invention, the first structural member is provided with a first connecting portion at its end, and the second structural member is provided with a second connecting portion at its end, wherein the connecting member is used to connect the first connecting portion and the second connecting portion.

[0011] According to some embodiments of the present invention, the first connecting part is provided with a first positioning groove, the second connecting part is provided with a second positioning groove, and the first positioning groove and the second positioning groove cooperate to form a positioning hole;

[0012] The drill pipe inspection fixture also includes a positioning pin, which passes through the positioning hole to position the first connecting part and the second connecting part.

[0013] According to some embodiments of the present invention, the positioning pin is connected to the first structural member by a fastener.

[0014] According to some embodiments of this utility model, the positioning pin is cylindrical.

[0015] According to some embodiments of the present invention, the main structure is provided with a receiving groove, and the measuring structure is installed in the receiving groove.

[0016] According to some embodiments of the present invention, the receiving groove is disposed on the outer peripheral wall of the main structure, and the opening direction of the receiving groove is the radial direction of the main structure.

[0017] According to some embodiments of the present invention, the main structure is equipped with a locking member that extends into the receiving groove to limit the measurement structure.

[0018] According to some embodiments of the present invention, the slot includes a radial surface and a tangential surface, and the detection part is provided with a first matching surface and a second matching surface, wherein the first matching surface corresponds to the radial surface and the second matching surface corresponds to the tangential surface;

[0019] The first matching surface is equipped with a magnetic attraction structure.

[0020] According to some embodiments of the present invention, the adjustment structure is installed on the main structure, and the main structure is equipped with a plurality of the adjustment structures, which are arranged at intervals around the circumference.

[0021] Additional aspects and advantages of this 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. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the assembly of the testing fixture in this embodiment;

[0024] Figure 2 This is an exploded view of the detection fixture in this embodiment;

[0025] Figure 3 This is a cross-sectional view of the detection fixture in this embodiment;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a schematic diagram of the groove angle of the drill pipe detected by the testing fixture in this embodiment.

[0028] Icon labels:

[0029] Main structure 100, first structural component 110, first connecting part 111, first positioning groove 112, second structural component 120, second connecting part 121, second positioning groove 122, connecting part 130, detection part 140, first matching surface 141, second matching surface 142, magnetic attraction structure 143, positioning pin 150, fastener 151, receiving groove 160, locking part 170;

[0030] Adjustment structure 200;

[0031] Measurement structure 300;

[0032] Slot 400, radial surface 410, tangential surface 420. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Reference Figure 1 , Figure 5 As shown, the drill pipe inspection fixture of this embodiment has multiple slots 400 on the outer peripheral wall of the drill pipe to be inspected, and the multiple slots 400 are arranged at intervals around the circumference; for example, Figure 5 The drill pipe shown has four slots 400, which are evenly spaced around the circumference. Therefore, the included angle α between adjacent slots 400 is 90 degrees. During drill pipe operation, it is necessary to ensure that the included angle between adjacent slots 400 is within the set error value of 90 degrees. If the included angle between adjacent slots 400 exceeds the error value, the safety of construction will be reduced. Current methods for measuring the included angle between adjacent slots 400 have disadvantages such as high inspection cost, long inspection cycle, and inconvenience. To solve the above technical problems, this embodiment proposes a portable drill pipe inspection fixture, which can serve as a professional measuring tool for the drill pipe slots 400. It can easily measure the distance between the slot wall of the slot 400 and the inspection part 140, and then calculate the included angle between adjacent slots 400. This method has high inspection efficiency and low inspection cost. The following is a detailed description in conjunction with the attached... Figures 1 to 4 The drill pipe inspection tooling of this embodiment will be described in detail.

[0038] Reference Figures 1 to 4 The drill pipe inspection fixture of this embodiment includes a main structure 100, an adjustment structure 200, and a measuring structure 300. The main structure 100 includes a first structural member 110, a second structural member 120, and a connecting member 130. Both the first structural member 110 and the second structural member 120 are provided with a detection part 140 that matches the slot 400. The connecting member 130 is used to connect the first structural member 110 and the second structural member 120 so that the main structure 100 is fitted onto the drill pipe. The adjustment structure 200 passes through the main structure 100 to abut against the drill pipe passing through the main structure 100, and is used to adjust the concentricity of the main structure 100 and the drill pipe. The measuring structure 300 is used to measure the distance between the detection part 140 and the wall of the slot 400. (Refer to...) Figure 1As shown, the main structure 100 has a through hole at its center for the drill rod to pass through. The first structural member 110 and the second structural member 120 are both semi-circular. Taking the drill rod as an example with four slots 400, the inner sidewall of the first structural member 110 and the inner sidewall of the second structural member 120 are each provided with two detection parts 140.

[0039] It should be understood that the adjustment structure 200 is installed on the main structure 100, and the main structure 100 has multiple adjustment structures 200, which are spaced apart around the circumference; see reference. Figure 3 As shown, the adjusting structure 200 is preferably a bolt, and the main structure 100 is provided with a threaded hole for the bolt to pass through, so that the bolt abuts against the outer surface of the drill rod that passes through the main structure 100. Before measuring the distance between the groove wall of the chuck 400 and the detection part 140, multiple adjusting structures 200 are adjusted to make the main structure 100 concentric with the drill rod; the standard for proving that the main structure 100 is concentric with the drill rod is that the distance between any position between the inner side wall of the main structure 100 and the outer side wall of the drill rod is basically equal. Adjusting the main structure 100 to be concentric with the drill rod before measuring the distance between the groove wall of the chuck 400 and the detection part 140 can improve the accuracy of the distance measurement between the groove wall of the chuck 400 and the detection part 140. The distance between the inner side wall of the main structure 100 and the outer side wall of the drill rod can be measured using a feeler gauge or other measuring equipment.

[0040] The drill pipe slot 400 in this embodiment is referenced. Figure 5 As shown, the slot 400 includes a radial surface 410 and a tangential surface 420. The radial surface 410 is substantially perpendicular to the tangential surface. The included angle α between adjacent slots 400 usually refers to the included angle between the radial surfaces of adjacent slots 400. (Refer to...) Figure 2 , Figure 4As shown, the detection unit 140 is provided with a first matching surface 141 and a second matching surface 142. The first matching surface 141 corresponds to the radial surface 410, and the second matching surface 142 corresponds to the tangential surface 420. In this embodiment, the distance between the groove wall of the slot 400 and the detection unit 140 is the distance between the radial surface 410 and the first matching surface 141. Since the drill rod will wear during operation, if the slot 400 wears, the included angle between adjacent slots 400 will change, which will affect the safety of the construction operation. Therefore, it is necessary to measure the included angle between adjacent slots 400 to ensure the safety of the construction operation. When measuring the included angle between adjacent slots 400, first, align the first matching surface 141 of one of the detection parts 140 of the main structure 100 with the radial surface 410 of any slot 400. Then, measure the distance between the first matching surface 141 of the remaining detection parts 140 and the radial surface 410 of the matching slot 400. If the distance between any first matching surface 141 and the radial surface 410 does not exceed the set value, it indicates that the drill pipe meets the usage standard. The distance between the first matching surface 141 and the matching radial surface 410 can be measured using a feeler gauge or other measuring equipment.

[0041] The steps for inspecting the drill pipe using the inspection fixture in this embodiment are as follows:

[0042] 1. Install the main structure 100 onto the drill pipe so that the multiple detection parts 140 of the main structure 100 correspond one-to-one with the multiple slots 400 of the drill pipe;

[0043] 2. Connect the first structural member 110 and the second structural member 120 through the connector 130, but do not lock the first structural member 110 and the second structural member 120 temporarily;

[0044] 3. Fit one of the detection parts 140 of the main structure 100 with the slot 400 so that the distance between the detection part 140 and the slot 400 is less than the set value, and then lock the first structural member 110 and the second structural member 120.

[0045] 4. Adjust the adjusting structure 200 to make the main structure 100 concentric with the drill pipe;

[0046] 5. The distance between the first matching surface 141 and the matching radial surface 410 of each detection part 140 is measured by the measuring structure 300.

[0047] In an embodiment of this utility model, a magnetic attraction structure 143 is mounted on the first mating surface 141. Specifically, refer to... Figure 4As shown, the magnetic structure 143 is typically installed on the first mating surface 141 by adhesive bonding. Each detection part 140 has a groove on its first mating surface 141 for installing the magnetic structure 143. Installing the magnetic structure 143 on the first mating surface 141 facilitates the installation of the main structure 100 and also makes it easier for the first mating surface 141 to fit tightly against the mating radial surface 410.

[0048] It should be noted that, in order to ensure the accuracy of the detection results of the detection fixture in this embodiment and to reduce the installation difficulty of the magnetic structure 143, the magnetic structure 143 preferably does not protrude from the surface of the first matching surface 141.

[0049] In an embodiment of this utility model, the first structural member 110 has a first connecting portion 111 at one end, the second structural member 120 has a second connecting portion 121 at one end, and the connecting member 130 is used to connect the first connecting portion 111 and the second connecting portion 121. Specifically, refer to... Figure 2 , Figure 4 As shown, the first structural member 110 has a first connecting part 111 at both ends, and the second structural member 120 has a second connecting part 121 at both ends, with the two first connecting parts 111 and the two second connecting parts 121 corresponding one-to-one.

[0050] In an embodiment of this utility model, the first connecting part 111 is provided with a first positioning groove 112, and the second connecting part 121 is provided with a second positioning groove 122. The first positioning groove 112 and the second positioning groove 122 cooperate to form a positioning hole. The drill rod detection fixture also includes a positioning pin 150, which passes through the positioning hole to install and position the first connecting part 111 and the second connecting part 121. Specifically, in order to improve the accuracy of the distance measurement between the first matching surface 141 and the matching radial surface 410, it is necessary to first ensure the accuracy of the connection between the first structural member 110 and the second structural member 120 of the main structure 100, and avoid the reduction of measurement accuracy due to misalignment of the first structural member 110 and the second structural member 120. By setting the positioning pin 150 and the positioning hole, it is possible to ensure that the first connecting part 111 and the second connecting part 121 are aligned, thereby avoiding misalignment of the first structural member 110 and the second structural member 120.

[0051] Reference Figure 2 , Figure 4 As shown, in this embodiment, the positioning hole is preferably circular, and the positioning pin 150 is correspondingly cylindrical; the first positioning groove 112 and the second positioning groove 122 are both semi-circular grooves, and the first positioning groove 112 and the second positioning groove 122 are aligned to form a circular positioning hole. The circular positioning pin 150 and positioning hole can reduce the processing difficulty, thereby reducing the manufacturing cost of the inspection tooling in this embodiment.

[0052] In this embodiment of the present invention, the positioning pin 150 is connected to the first structural member 110 via a fastener 151. For example, the positioning pin 150 in this embodiment can be as follows: Figure 4 As shown, the positioning pin 150 is installed in the first positioning groove 112 or the second positioning groove 122, the fastener 151 is a bolt, the first positioning groove 112 or the second positioning groove 122 is provided with a threaded hole, and the end of the fastener 151 passes through the positioning pin 150 in the radial direction of the positioning pin 150 and is threadedly connected to the threaded hole.

[0053] It is conceivable that the positioning pin 150 may also be connected to the first structural member 110 or the second structural member 120 at its end by means of a snap fastener, latch, or limiting member.

[0054] In an embodiment of this utility model, the main structure 100 is provided with a receiving groove 160, and the measuring structure 300 is installed in the receiving groove 160. As can be seen from the above, the measuring structure 300 in this embodiment can use measuring devices such as feeler gauges, which are usually used; placing the feeler gauge in the receiving groove 160 can prevent the feeler gauge from being lost and facilitate its carrying.

[0055] In an embodiment of this utility model, the receiving groove 160 is disposed on the outer peripheral wall of the main structure 100, and the opening direction of the receiving groove 160 is the radial direction of the main structure 100. Specifically, refer to... Figure 2 , Figure 3 As shown, the outer peripheral wall of the main structure 100 is arc-shaped, and the opening of the receiving groove 160 is set in the radial direction toward the main structure 100, which facilitates the placement and removal of the measuring structure 300 and improves the convenience of using the testing fixture in this embodiment.

[0056] In an embodiment of this utility model, the main structure 100 is equipped with a locking member 170, which extends into the receiving groove 160 to limit the measurement structure 300; for example, refer to Figure 2 , Figure 3 As shown, the locking element 170 can be a bolt. The locking element 170 is located in the middle of the opening side of the receiving groove 160. It has a simple structure and can play a good limiting effect on the feeler gauge, preventing the feeler gauge from falling out of the receiving groove 160.

[0057] It is conceivable that the opening of the receiving groove 160 could be oriented towards the thickness direction of the main structure 100, and a cover plate could be installed on the opening side of the receiving groove 160.

[0058] The drill pipe inspection fixture of this utility model embodiment can serve as a professional measuring tool for the drill pipe slot 400, easily measuring the distance between the slot wall of the slot 400 and the inspection part 140, and then calculating the included angle between each slot 400. It has the advantages of high inspection efficiency and low inspection cost. The inspection fixture of this embodiment only includes three main components: the main structure 100, the adjustment structure 200, and the measuring structure 300. It has a simple structure, is easy to carry, has low manufacturing cost, and is easy to operate.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A drill pipe inspection tool for inspecting the dimensional accuracy of a key groove in the outer peripheral wall of a drill pipe, characterized by, The drilling rod detection tool comprises a main body structure, an adjusting structure and a measuring structure. The main body structure comprises a first structural member, a second structural member and a connecting member. The first structural member and the second structural member are each provided with a detection part matched with the clamping groove. The connecting member is used to connect the first structural member and the second structural member, so that the main body structure is sleeved on the drilling rod.

2. The drill pipe inspection fixture of claim 1, wherein: The adjusting structure is used to adjust the concentricity of the main body structure and the drilling rod.

3. The drill pipe inspection tool of claim 2, wherein: The measuring structure is used to measure the distance between the detection part and the clamping groove wall. The end of the first structural member is provided with a first connecting part, and the end of the second structural member is provided with a second connecting part.

4. The drill pipe inspection tool of claim 3, wherein: The connecting member is used to connect the first connecting part and the second connecting part.

5. The drill pipe inspection tool of claim 3, wherein: The first connecting part is provided with a first positioning groove, and the second connecting part is provided with a second positioning groove.

6. The drill pipe inspection fixture of claim 1, wherein: The first positioning groove and the second positioning groove are matched to form a positioning hole.

7. The drill pipe inspection fixture of claim 6, wherein: The drilling rod detection tool further comprises a positioning pin.

8. The drill pipe inspection fixture of claim 6, wherein: The positioning pin is arranged in the positioning hole to position the first connecting part and the second connecting part.

9. The drill pipe inspection fixture of claim 1, wherein: The positioning pin is connected with the first structural member through a fastener. The positioning pin is cylindrical.

10. The drill pipe inspection tool of claim 1, wherein: The main body structure is provided with a containing groove. The measuring structure is arranged in the containing groove. The containing groove is arranged on the outer circumferential wall of the main body structure. The opening direction of the containing groove is the radial direction of the main body structure. The main body structure is provided with a locking member. The locking member extends into the containing groove to limit the measuring structure. The clamping groove comprises a radial surface and a tangential surface. The detection part is provided with a first matching surface and a second matching surface. The first matching surface corresponds to the radial surface. The second matching surface corresponds to the tangential surface. The first matching surface is provided with a magnetic attraction structure. The adjusting structure is arranged on the main body structure. The main body structure is provided with a plurality of adjusting structures. The plurality of adjusting structures are arranged at intervals around the circumference.

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