PDC drill bit performance testing device

Abstract

The utility model is applicable to the field of drilling bits, and provides a PDC (polycrystalline diamond compact) bit performance testing device which comprises a base used for placing stones for detection, the base comprises a mounting seat, and a plurality of groups of bearing rollers used for bearing the stones are arranged in the mounting seat in parallel; the moving assembly comprises two horizontal moving units, and the two horizontal moving units are perpendicular to each other; the vertical moving unit is connected with the horizontal moving unit through a connecting plate; the driving assembly comprises a driving motor which is mounted on the vertical moving unit through a mounting plate; and the mounting rod is used for mounting a to-be-detected PDC drill bit and is fixedly connected with the power output end of the driving motor. The vertical moving unit and the driving assembly are controlled to move through the two horizontal moving units, the cutting position of the PDC drill bit and stone can be adjusted, multiple cutting tests can be rapidly achieved, the stone does not need to be repeatedly replaced and clamped, and compared with an existing testing device, the working efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of drilling bits, and in particular relates to a PDC drill bit performance testing device. Background Technology

[0002] PDC (Polycrystalline Diamond Composite) drill bits are used in oil and gas exploration drilling. Their main characteristic is that the cutting surfaces are made of polycrystalline diamond (PDC), a material with extremely high hardness and wear resistance, making PDC drill bits perform exceptionally well in hard rock formations.

[0003] However, due to the complexity of drilling operations, PDC drill bits usually need to undergo performance testing on selected samples before leaving the factory to ensure stable performance and reduce the occurrence of accidents during drilling. This testing is usually done by cutting rocks. However, in existing performance testing, small pieces of rock are usually clamped in a chuck for cutting tests. This requires frequent clamping of rocks during multiple tests, which is cumbersome and inefficient. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a PDC drill bit performance testing device, which aims to solve the problems mentioned in the background art.

[0005] This utility model embodiment is implemented as follows: a PDC drill bit performance testing device, used for cutting tests on PDC drill bits, includes:

[0006] A base for placing stones for testing. The base includes a mounting base with multiple sets of bearing rollers for bearing stones arranged in parallel inside, and four support frames fixedly installed on its side.

[0007] Mobile components, including:

[0008] Two horizontal moving units are fixedly installed on the support frame, and the two horizontal moving units are perpendicular to each other;

[0009] The vertical moving unit is connected to the horizontal moving unit via a connecting plate;

[0010] Driver components, including:

[0011] The drive motor is mounted on the vertical moving unit via a mounting plate;

[0012] The mounting rod is used to mount the PDC drill bit to be tested and is fixedly connected to the power output end of the drive motor.

[0013] As a further embodiment of this utility model: the base also includes a fixing unit for fixing the stone, the fixing unit includes a "U"-shaped fixing plate, the fixing plate is fixedly connected to the support frame by fixing bolts provided at both ends, and a compression pad is fixedly installed on the side of the fixing plate and the mounting base adjacent to the stone, the compression pad is in compression contact with the stone.

[0014] As a further aspect of this utility model: the vertical moving unit includes:

[0015] Portable seat;

[0016] A vertical lead screw is movably mounted on a movable seat at both ends via bearings, and a vertical moving block is installed on it via a threaded connection. The side of the mounting plate is fixedly connected to the vertical moving block.

[0017] The second moving motor is fixedly installed on the moving base, and its power output end is fixedly connected to one end of the vertical lead screw.

[0018] As a further embodiment of this utility model: the vertical moving unit further includes a light rod, which is fixedly installed in the moving seat and parallel to the vertical lead screw, and the vertical moving block is also slidably engaged with the light rod.

[0019] As a further aspect of this utility model: the horizontal moving unit includes:

[0020] Two mounting brackets are fixedly connected to support brackets at both ends. The two mounting brackets are parallel to each other. A sliding groove is fixedly opened in the middle of the mounting bracket, and a slider is slidably installed in the sliding groove.

[0021] A horizontal lead screw is movably mounted on two sliders at both ends via bearings, and a horizontal moving block is movably mounted on it via a threaded connection.

[0022] The first moving motor is fixedly mounted on a slider, and its power output end is fixedly connected to one end of a horizontal lead screw.

[0023] As a further embodiment of this utility model: the connecting plate is configured as an "L"-shaped bent plate, and the sides of the connecting plate are fixedly connected to the horizontal moving block and the moving seat respectively.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. The present invention provides a PDC drill bit performance testing device, which controls the movement of a vertical moving unit and a drive component through two horizontal moving units. This allows for adjustment of the cutting position between the PDC drill bit and the stone, enabling rapid multiple cutting tests without the need for repeated replacement of the clamped stone. Compared with existing testing devices, this device offers higher work efficiency.

[0026] 2. The PDC drill bit performance testing device provided in this embodiment of the utility model uses a fixed unit and a compression pad to clamp and fix the stone, ensuring that the stone can remain stable during the cutting test and avoiding the impact of stone displacement on the test results, or even problems such as drill jamming.

[0027] 3. The PDC drill bit performance testing device provided in this embodiment of the utility model drives the vertical lead screw to rotate through a second moving motor. Based on the threaded engagement between the vertical lead screw and the vertical moving block, the vertical moving block is raised and lowered under the limit of the guide rod. Then, the raising and lowering of the drive assembly is achieved through the mounting plate connected to the vertical moving block. Finally, the cutting control of the PDC drill bit is achieved by controlling the raising and lowering of the drive assembly.

[0028] 4. The PDC drill bit performance testing device provided in this embodiment of the utility model, through the connection of the connecting plate and the horizontal moving block, based on the threaded engagement of the horizontal moving block and the horizontal lead screw, achieves mutual limiting through the two mutually perpendicular horizontal lead screws on the two horizontal moving units, and by driving the rotation of the horizontal lead screw, the horizontal moving block can be moved along the axial direction of the horizontal lead screw, and then through the connecting plate connected to the horizontal moving block, under the sliding limit of the mounting frame and the slider, the other horizontal moving unit is moved. By independently driving the rotation of the horizontal lead screw, the position of the connecting plate and the connected vertical moving unit can be freely adjusted in the horizontal direction. Attached Figure Description

[0029] Figure 1 A three-dimensional structural diagram of a PDC drill bit performance testing device provided for an embodiment of this utility model;

[0030] Figure 2 A partial cross-sectional schematic diagram of a PDC drill bit performance testing device provided in an embodiment of this utility model;

[0031] Figure 3 A three-dimensional structural diagram of a horizontal moving unit of a PDC drill bit performance testing device provided in an embodiment of this utility model;

[0032] Figure 4 This is a three-dimensional structural diagram of a vertical moving unit of a PDC drill bit performance testing device provided in an embodiment of the present invention.

[0033] In the attached diagram: 1. Base, 11. Mounting seat, 111. Support frame, 12. Bearing roller, 13. Fixing unit, 131. Fixing plate, 132. Fixing bolt, extrusion pad, 2. Stone, 3. Moving assembly, 31. Horizontal moving unit, 311. Mounting frame, 312. Slider, 313. First moving motor, 314. Horizontal lead screw, 315. Horizontal moving block, 32. Connecting plate, 33. Vertical moving unit, 331. Moving seat, 332. Second moving motor, 333. Vertical lead screw, 334. Smooth rod, 335. Vertical moving block, 4. Drive assembly, 41. Mounting plate, 42. Drive motor, 43. Mounting rod, 5. PDC drill bit. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0036] Please see Figure 1 and Figure 2 This utility model embodiment provides a PDC drill bit performance testing device for performing cutting tests on a PDC drill bit 5, including:

[0037] The base 1 is used to place the stone material 2 for testing. The base 1 includes a mounting base 11, which has multiple sets of bearing rollers 12 arranged in parallel inside to support the stone material 2, and four support frames 111 fixedly installed on its side.

[0038] Mobile component 3 includes:

[0039] Two horizontal moving units 31 are fixedly installed on the support frame 111, and the two horizontal moving units 31 are perpendicular to each other;

[0040] The vertical moving unit 33 is connected to the horizontal moving unit 31 via the connecting plate 32;

[0041] Driver component 4 includes:

[0042] The drive motor 42 is mounted on the vertical moving unit 33 via the mounting plate 41;

[0043] Mounting rod 43 is used to mount the PDC drill bit 5 to be tested and is fixedly connected to the power output end of drive motor 42.

[0044] In practical application, this embodiment uses multiple bearing rollers 12 in conjunction with external feeding equipment to place the stone 2 into the mounting base 11. The drive motor 42 drives the PDC drill bit 5 to rotate, and the vertical movement unit 33 controls the lifting and lowering of the drive component 4. The rotating PDC drill bit 5 then cuts and drills the stone 2. After cutting, the stone 2 and the PDC drill bit 5 are tested to determine the cutting performance of the PDC drill bit 5. The two horizontal movement units 31 control the vertical movement unit 33 to adjust the horizontal position of the vertical movement unit 33, thereby adjusting the cutting position. Additional cutting tests can be performed on the empty positions on the stone 2.

[0045] In this embodiment, the movement of the vertical moving unit 33 and the drive component 4 is controlled by two horizontal moving units 31, which can adjust the cutting position of the PDC drill bit 5 and the stone 2, and quickly realize multiple cutting tests without repeatedly changing the clamping stone 2. Compared with the existing testing device, the working efficiency is high.

[0046] Please see Figure 2 As another preferred embodiment of the present invention, the base 1 further includes a fixing unit 13 for fixing the stone 2. The fixing unit 13 includes a U-shaped fixing plate 131. The fixing plate 131 is threadedly connected and fixed to the support frame 111 by fixing bolts 132 provided at both ends. The fixing plate 131 and the mounting base 11 are fixedly installed with compression pads 14 on the side adjacent to the stone 2. The compression pads 14 are in compression contact with the stone 2.

[0047] In practical applications, the stone 2 is clamped and fixed by the fixed unit 13 and the extrusion pad 14 to ensure that the stone 2 remains stable during the cutting test, thus avoiding the impact of stone 2 displacement on the test results or even problems such as drill jamming.

[0048] Please see Figure 2 and Figure 4 In another preferred embodiment of this utility model, the vertical moving unit 33 includes:

[0049] Mobile seat 331;

[0050] A vertical lead screw 333 is movably mounted on a movable seat 331 at both ends via bearings. A vertical moving block 335 is installed on the seat via a threaded connection. The side of the mounting plate 41 is fixedly connected to the vertical moving block 335.

[0051] The second moving motor 332 is fixedly installed on the moving base 331, and its power output end is fixedly connected to one end of the vertical lead screw 333.

[0052] Furthermore, the vertical moving unit 33 also includes a guide rod 334, which is fixedly installed in the moving seat 331 and parallel to the vertical lead screw 333. The vertical moving block 335 also slides with the guide rod 334.

[0053] In practical application, this embodiment drives the vertical lead screw 333 to rotate via the second moving motor 332. Based on the threaded engagement between the vertical lead screw 333 and the vertical moving block 335, and under the limit of the guide rod 334, the lifting and lowering control of the vertical moving block 335 is achieved. Then, the lifting and lowering control of the drive assembly 4 is achieved via the mounting plate 41 connected to the vertical moving block 335. Finally, the cutting control of the PDC drill bit 5 is achieved by controlling the lifting and lowering of the drive assembly 4.

[0054] Please see Figure 3 In another preferred embodiment of this utility model, the horizontal moving unit 31 includes:

[0055] Two mounting brackets 311 are fixedly connected to support brackets 111 at both ends. The two mounting brackets 311 are parallel to each other. A sliding groove is fixedly opened in the middle of the mounting bracket 311, and a slider 312 is slidably installed in the sliding groove.

[0056] A horizontal lead screw 314 is movably mounted on two sliders 312 via bearings at both ends, and a horizontal moving block 315 is movably mounted on it via a threaded engagement.

[0057] The first moving motor 313 is fixedly mounted on a slider 312, and its power output end is fixedly connected to one end of the horizontal lead screw 314.

[0058] Furthermore, the connecting plate 32 is configured as an "L"-shaped bent plate, and the sides of the connecting plate 32 are fixedly connected to the horizontal moving block 315 and the moving seat 331 respectively.

[0059] In practical application, this embodiment connects the connecting plate 32 to the horizontal moving block 315. Based on the threaded engagement between the horizontal moving block 315 and the horizontal lead screw 314, the two mutually perpendicular horizontal lead screws 314 on the two horizontal moving units 31 achieve mutual limiting. By driving the rotation of the horizontal lead screw 314, the horizontal moving block 315 can be moved axially along the horizontal lead screw 314. Then, the connecting plate 32 connected to the horizontal moving block 315 drives the other horizontal moving unit 31 to move under the sliding limit of the mounting bracket 311 and the slider 312. By independently driving the rotation of the horizontal lead screw 314, the position of the connecting plate 32 and the connected vertical moving unit 33 can be freely adjusted in the horizontal direction.

[0060] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0061] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0062] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PDC drill bit performance testing device, used for cutting tests on PDC drill bits (5), characterized in that: include: The machine base (1) is used to place the stone material (2) for testing. The machine base (1) includes a mounting base (11), which has multiple sets of bearing rollers (12) arranged in parallel inside for bearing the stone material (2), and four support frames (111) are fixedly installed on its side. The mobile component (3) includes: Two horizontal moving units (31) are fixedly installed on the support frame (111), and the two horizontal moving units (31) are perpendicular to each other; The vertical moving unit (33) is connected to the horizontal moving unit (31) via a connecting plate (32); The driver component (4) includes: The drive motor (42) is mounted on the vertical moving unit (33) via the mounting plate (41); Mounting rod (43) is used to mount the PDC drill bit (5) to be tested and is fixedly connected to the power output end of the drive motor (42).

2. The PDC drill bit performance testing device according to claim 1, characterized in that: The base (1) also includes a fixing unit (13) for fixing the stone (2). The fixing unit (13) includes a "U"-shaped fixing plate (131). The fixing plate (131) is fixed to the support frame (111) by fixing bolts (132) at both ends. The fixing plate (131) and the mounting base (11) are fixedly installed with compression pads (14) on the side adjacent to the stone (2). The compression pads (14) are in compression contact with the stone (2).

3. The PDC drill bit performance testing device according to claim 1, characterized in that: The vertical moving unit (33) includes: Movable seat (331); A vertical lead screw (333) is movably mounted on a movable seat (331) at both ends via bearings, and a vertical moving block (335) is installed on it via a threaded connection. The side of the mounting plate (41) is fixedly connected to the vertical moving block (335). The second moving motor (332) is fixedly installed on the moving base (331), and its power output end is fixedly connected to one end of the vertical lead screw (333).

4. The PDC drill bit performance testing device according to claim 3, characterized in that: The vertical moving unit (33) also includes a light rod (334), which is fixedly installed in the moving seat (331) and parallel to the vertical lead screw (333). The vertical moving block (335) also slides with the light rod (334).

5. The PDC drill bit performance testing device according to claim 4, characterized in that: The horizontal movement unit (31) includes: Two mounting brackets (311) are fixedly connected to support brackets (111) at both ends. The two mounting brackets (311) are parallel to each other. A sliding groove is fixedly opened in the middle of the mounting bracket (311), and a slider (312) is slidably installed in the sliding groove. A horizontal lead screw (314) is movably mounted on two sliders (312) at both ends via bearings, and a horizontal moving block (315) is movably mounted on it via a threaded connection. The first moving motor (313) is fixedly mounted on a slider (312), and its power output end is fixedly connected to one end of the horizontal lead screw (314).

6. The PDC drill bit performance testing device according to claim 5, characterized in that: The connecting plate (32) is set as an "L" shaped bent plate, and the side of the connecting plate (32) is fixedly connected to the horizontal moving block (315) and the moving seat (331) respectively.

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