A drill pipe screw-on tool
The design of the integrated drill pipe engagement fixture solves the problem of repeated concentricity adjustments required for drill pipe engagement in existing technologies, achieving efficient engagement, reducing inspection errors, and avoiding thread damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN CHUANGYUAN MINING MASCH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-30
AI Technical Summary
The existing drill pipe engagement tool is a split structure, which requires repeated adjustments to concentricity, resulting in time consumption and errors in test data, and is also prone to damaging the threads.
An integral drill pipe engagement fixture is adopted. By installing a slide plate and bearing assembly on the base frame, the drill pipe is ensured to be concentric, simplifying the engagement process and reducing inspection errors and thread damage.
It improved drill pipe engagement efficiency, reduced detection data errors, and prevented thread damage.
Smart Images
Figure CN224424862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining machinery technology, and in particular to a drill pipe screwing tool. Background Technology
[0002] After the drill pipe is machined, the qualification of its connecting threads is determined by performing a tightening operation under specific torque conditions and checking whether the tightness distance is within the specified range. A single drill pipe weighs approximately 600 kg. When tightening or loosening the drill pipe, the center of the drill pipe must remain concentric, simultaneously completing relative rotational and axial movements. Only by meeting these conditions can the error in the test data be minimized and thread damage avoided. Currently, the drill pipe tightening fixture is a split structure, requiring repeated adjustments to concentricity before use, resulting in significant time consumption. 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 engagement fixture that facilitates keeping the drill pipe concentric, thereby reducing errors in detection data, preventing thread damage, and improving drill pipe engagement efficiency.
[0004] The drill pipe screwing fixture according to an embodiment of the present utility model includes:
[0005] The base frame is equipped with slide rails;
[0006] The first slide plate is slidably mounted on the slide rail; a first bearing group and a second bearing group are respectively mounted on both sides of the width direction of the first slide plate. The first bearing group and the second bearing group each include multiple bearing structures spaced apart along the length direction of the first slide plate. The first drill rod is placed between the first bearing group and the second bearing group.
[0007] The second slide plate is slidably mounted on the slide rail; a third bearing group and a fourth bearing group are respectively mounted on both sides of the width direction of the second slide plate, and the third bearing group and the fourth bearing group each include multiple bearing structures spaced apart along the length direction of the second slide plate, and the second drill rod is placed between the third bearing group and the fourth bearing group;
[0008] The bearing structure of the first bearing group is coaxially arranged with the bearing structure of the third bearing group, and the bearing structure of the second bearing group is coaxially arranged with the bearing structure of the fourth bearing group.
[0009] The drill pipe screwing fixture according to the embodiments of this utility model has at least the following beneficial effects:
[0010] By simultaneously mounting the first and second slide plates on a single base frame, and with both slide plates slidably mounted on the slide rail, there is no need to consider the alignment of the first and second slide plates, simplifying the drill rod engagement process. The bearing structure of the first bearing group is coaxially arranged with the bearing structure of the third bearing group, and the bearing structure of the second bearing group is coaxially arranged with the bearing structure of the fourth bearing group, directly ensuring that the first drill rod placed on the first slide plate and the second drill rod placed on the second slide plate are concentric. This eliminates the need for repeated drill rod adjustments, greatly improving the drill rod engagement efficiency, thereby reducing errors in the detection data and preventing thread damage.
[0011] According to some embodiments of the present invention, the bearing structure includes a bearing frame, a bearing body, and a pin. The pin passes through the bearing frame, and the bearing body is rotatably sleeved on the pin around its own axis.
[0012] According to some embodiments of the present invention, the bearing structure further includes a retaining block, which abuts against the pin and is used to restrict the axial rotation of the pin.
[0013] According to some embodiments of the present invention, the bearing bracket is connected to the first slide plate by fasteners, and / or the locking block is connected to the bearing bracket by fasteners.
[0014] According to some embodiments of the present invention, the bearing frame includes a first frame and a second frame arranged at intervals, and the bearing body is installed between the first frame and the second frame.
[0015] According to some embodiments of this utility model, a wear-resistant layer is installed on the outer peripheral wall of the bearing body.
[0016] According to some embodiments of the present invention, the bearing structure is installed at both ends of the first slide plate and / or the second slide plate in the length direction.
[0017] According to some embodiments of the present invention, limit blocks are installed at both ends of the slide rail along its length, and the limit blocks are used to limit the travel end point of the first slide and the second slide.
[0018] According to some embodiments of the present invention, the slide rail is slidably mounted with a slide block, and the first slide plate and the second slide plate are both slidably mounted on the slide rail via the slide block.
[0019] According to some embodiments of the present invention, the slide rail is provided with two rails, which are arranged in parallel and spaced apart.
[0020] The first slide plate is slidably mounted on two slide rails on both sides in the width direction, and / or the second slide plate is slidably mounted on two slide rails on both sides in the width direction.
[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 structure of an embodiment of this application;
[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0025] Icon labels:
[0026] Base frame 100, slide rail 110, slide block 120, limit block 130;
[0027] First skateboard 200;
[0028] Second skateboard 300;
[0029] Bearing structure 400, bearing bracket 410, first frame 411, second frame 412, bearing body 420, pin 430, and clamping block 440. Detailed Implementation
[0030] 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.
[0031] 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.
[0032] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.
[0033] 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.
[0034] Reference Figure 1 , Figure 2 As shown in the figure, this utility model embodiment discloses a drill rod screwing fixture, including a base frame 100, a first sliding plate 200 and a second sliding plate 300. The base frame 100 is equipped with a slide rail 110, and the first sliding plate 200 and the second sliding plate 300 are slidably mounted on the slide rail 110. The first sliding plate 200 and the second sliding plate 300 are both used to place drill rods. For ease of understanding, in this embodiment, the two drill rods used for screwing are defined as the first drill rod and the second drill rod, respectively. The first drill rod rests on the first sliding plate 200, and the second drill rod rests on the second sliding plate 300. By simultaneously installing the first sliding plate 200 and the second sliding plate 300 on a single base frame 100, there is no need to consider the alignment problem of the first sliding plate 200 and the second sliding plate 300, which simplifies the steps of screwing the drill rods together.
[0035] Reference Figure 1 As shown, in this embodiment, a first bearing group and a second bearing group are respectively installed on both sides of the width direction of the first slide plate 200. Both the first bearing group and the second bearing group include multiple bearing structures 400 spaced apart along the length direction of the first slide plate 200. The first drill rod rests between the first bearing group and the second bearing group. A third bearing group and a fourth bearing group are respectively installed on both sides of the width direction of the second slide plate 300. Both the third bearing group and the fourth bearing group include multiple bearing structures 400 spaced apart along the length direction of the second slide plate 300. The second drill rod rests between the third bearing group and the fourth bearing group. The bearing structures 400 of the first bearing group and the bearing structures 400 of the third bearing group are coaxially arranged, and the bearing structures 400 of the second bearing group and the bearing structures 400 of the fourth bearing group are coaxially arranged. This ensures that the first drill rod resting on the first slide plate 200 and the second drill rod resting on the second slide plate 300 are concentric, eliminating the need for repeated adjustment of the drill rod, greatly improving the engagement efficiency of the drill rod, thereby reducing the error of the detection data and avoiding damage to the threads.
[0036] Reference Figure 1 As shown, the first bearing group, the second bearing group, the third bearing group and the fourth bearing group each include two bearing structures 400. The two bearing structures 400 of the first bearing group and the second bearing group are respectively installed at both ends of the length direction of the first slide plate 200, and the two bearing structures 400 of the third bearing group and the fourth bearing group are respectively installed at both ends of the length direction of the second slide plate 300, so as to ensure that the first slide plate 200 and the second slide plate 300 are subjected to uniform force and improve the stability of the first drill pipe and the second drill pipe.
[0037] It is conceivable that the first bearing group and the second bearing group preferably include the same number of bearing structures 400, and the number of bearing structures 400 included in the first bearing group and the second bearing group can be specifically set to three, four, etc., depending on the actual situation, and is not limited in this embodiment. Similarly, it is preferred that the third bearing group and the fourth bearing group include the same number of bearing structures 400, and the number of bearing structures 400 included in the third bearing group and the fourth bearing group can be specifically set according to the actual situation.
[0038] It is conceivable that the first slide plate 200 and the second slide plate 300 adopt the same shape and size to reduce equipment costs; the bearing structure 400 used in the first bearing group, the second bearing group, the third bearing group and the fourth bearing group all adopt the same bearing structure 400 to reduce manufacturing and maintenance costs.
[0039] In the embodiments of this application, the bearing structure 400 is connected to the first sliding plate 200 and the second sliding plate 300 by fasteners such as bolts. Specifically, refer to... Figure 1 , Figure 2 As shown, the bearing structure 400 includes a bearing bracket 410, a bearing body 420, and a pin 430. The bearing bracket 410 is connected to the first slide plate 200 or the second slide plate 300 by fasteners such as bolts. The pin 430 passes through the top of the bearing bracket 410. The bearing body 420 is rotatably fitted onto the pin 430 around its own axis. The bearing body 420 is higher than the top of the bearing bracket 410 to ensure that the drill rod is always in contact with the bearing body 420 and not with the bearing bracket 410.
[0040] It is conceivable that, in order to increase the service life of the bearing body 420 and reduce its wear, a wear-resistant layer can be installed on the outer peripheral wall of the bearing body 420. This wear-resistant layer can be formed by spraying wear-resistant materials or other methods. The specific dimensions and model of the bearing body 420 can be determined by purchasing existing products based on actual needs, and are not limited in this embodiment.
[0041] In the embodiments of this application, reference is made to Figure 2 As shown, the bearing bracket 410 includes a first bracket 411 and a second bracket 412 spaced apart. The bearing body 420 is installed between the first bracket 411 and the second bracket 412 to prevent the bearing body 420 from sliding along the axial direction of the pin 430, thereby improving the stability of the bearing body 420 and reducing the probability of damage to the bearing body 420.
[0042] In embodiments of this application, the bearing structure 400 further includes a retaining block 440, which abuts against the pin 430 to restrict axial rotation of the pin 430. Specifically, refer to... Figure 2As shown, the retaining block 440 is connected to the bearing bracket 410 by bolts or other fasteners. The retaining block 440 can abut against the outer peripheral wall of the pin 430, restricting the axial rotation of the pin 430 through friction, or the retaining block 440 can be partially embedded in the pin 430 to restrict the axial rotation of the pin 430. Restricting the rotation of the pin 430 ensures that when the drill pipe rotates axially, only the bearing body 420 rotates, and not the pin 430. This avoids a certain area of the outer peripheral wall of the bearing body 420 always being in contact with the drill pipe, ensuring uniform wear at all positions of the bearing body 420, thereby improving the concentricity of the first drill pipe and the second drill pipe.
[0043] In the embodiments of this application, reference is made to Figure 1 As shown, two slide rails 110 are provided, and the two slide rails 110 are arranged parallel and spaced apart. The two sides of the first slide plate 200 in the width direction are slidably installed on the two slide rails 110 respectively, and / or, the two sides of the second slide plate 300 in the width direction are slidably installed on the two slide rails 110 respectively. The parallelism of the two slide rails 110 directly affects the concentricity of the first drill rod and the second drill rod. Therefore, when installing the slide rails 110 in this embodiment, special attention should be paid to the parallelism of the two slide rails 110. The slide rails 110 can be connected to the base frame 100 by fasteners such as bolts, or they can be connected to the base frame 100 by welding or other methods. In this embodiment, no limitation is made.
[0044] Preferably, the first slide plate 200 and the second slide plate 300 are respectively mounted on two slide rails 110 on both sides of the width direction to improve the stability of the first slide plate 200 and the second slide plate 300 and reduce the probability of the first slide plate 200 and the second slide plate 300 tilting in the width direction.
[0045] In the embodiments of this application, a slide block 120 is slidably mounted on the slide rail 110, and both the first slide block 200 and the second slide block 300 are slidably mounted on the slide rail 110 via the slide block 120. Specifically, refer to... Figure 1 , Figure 2 As shown, multiple slide blocks 120 are installed on both slide rails 110. The first slide block 200 and the second slide block 300 are preferably connected to the slide blocks 120 by bolts or other fasteners. This allows for individual replacement of slide blocks 120 when some slide blocks 120 malfunction and experience increased wear, reducing maintenance costs. The number and position of the slide blocks 120 can correspond to the bearing structure 400 to improve the stability of the first slide block 200 and the second slide block 300.
[0046] In the embodiments of this application, reference is made to Figure 1As shown, limit blocks 130 are installed at both ends of the slide rail 110 along its length. The limit blocks 130 extend upwards and are higher than the slide rail 110. The limit blocks 130 are used to limit the travel end of the first slide plate 200 and the second slide plate 300 and prevent them from falling off the slide rail 110. The limit blocks 130 can be connected to the base frame 100 or the slide rail 110 by bolts or other fasteners.
[0047] 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 the different embodiments or examples described in this specification.
[0048] 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 make-up tool, characterized by, include: The base frame is equipped with slide rails; The first slide plate is slidably mounted on the slide rail; a first bearing group and a second bearing group are respectively mounted on both sides of the width direction of the first slide plate. The first bearing group and the second bearing group each include multiple bearing structures spaced apart along the length direction of the first slide plate. The first drill rod is placed between the first bearing group and the second bearing group. The second slide plate is slidably mounted on the slide rail; a third bearing group and a fourth bearing group are respectively mounted on both sides of the width direction of the second slide plate, and the third bearing group and the fourth bearing group each include multiple bearing structures spaced apart along the length direction of the second slide plate, and the second drill rod is placed between the third bearing group and the fourth bearing group; The bearing structure of the first bearing group is coaxially arranged with the bearing structure of the third bearing group, and the bearing structure of the second bearing group is coaxially arranged with the bearing structure of the fourth bearing group.
2. The drill pipe make-up tool of claim 1, wherein: The bearing structure includes a bearing frame, a bearing body, and a pin. The pin passes through the bearing frame, and the bearing body is rotatably fitted onto the pin around its own axis.
3. The drill pipe make-up tool of claim 2, wherein: The bearing structure also includes a retaining block, which abuts against the pin and is used to restrict the axial rotation of the pin.
4. The drill pipe make-up tool of claim 3, wherein: The bearing bracket is connected to the first slide plate by fasteners, and / or the locking block is connected to the bearing bracket by fasteners.
5. The drill pipe make-up tool of claim 2, wherein: The bearing frame includes a first frame and a second frame spaced apart, and the bearing body is installed between the first frame and the second frame.
6. The drill pipe make-up tool of claim 2, wherein: The bearing body has a wear-resistant layer installed on its outer peripheral wall.
7. The drill pipe make-up tool of claim 1, wherein: The bearing structure is installed at both ends of the first and / or second sliding plates along their length.
8. The drill pipe make-up tool of claim 1, wherein: Limiting blocks are installed at both ends of the slide rail along its length. The limiting blocks are used to limit the travel end point of the first slide and the second slide.
9. The drill pipe make-up tool of claim 1, wherein: The slide rail is slidably mounted with a slide block, and both the first slide plate and the second slide plate are slidably mounted on the slide rail via the slide block.
10. The drill pipe make-up tool of claim 1, wherein: The slide rail is provided in two parallel and spaced apart. The first slide plate is slidably mounted on two slide rails on both sides in the width direction, and / or the second slide plate is slidably mounted on two slide rails on both sides in the width direction.