A drill bit performance test bench

Abstract

The present application relates to the technical field of testing device, particularly relates to a drill bit performance test bench, including mounting seat, two support columns are arranged at intervals on the mounting seat, a T-shaped support is arranged at the top of the support column, and a hydraulic cylinder is arranged on the upper side of the T-shaped support; the piston end of the hydraulic cylinder is located on the side close to the mounting seat, and is connected with a motor, the output end of the motor is connected with a connecting rod, and the end of the connecting rod away from the motor is connected with a drill bit to be detected; a torque test assembly is rotatably arranged on the mounting seat and below the drill bit to be detected, and a workpiece to be processed is mounted on the torque test assembly. The drilling speed, intensity and wear resistance of the drill bit to be detected can be evaluated, and the performance parameters of the diamond drill bit can be more comprehensively evaluated.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a drill bit performance testing bench. Background Technology

[0002] Diamond drill bits are the main tools for underground drilling. Their drilling principle is to use the ultra-hardness of diamond particles in the working layer of the drill bit to gradually carve and grind the rock, soil, or gravel underground, thus achieving step-by-step drilling.

[0003] In general engineering drilling, diamond drill bits are required to have high speed, high penetration rate, long service life, stable operation, few downhole accidents, and good wellbore quality. This necessitates that diamonds possess high strength, high wear resistance, and impact resistance before production and use. However, current technologies do not allow for comprehensive testing of diamond drill bits after processing, requiring multiple tests to complete the evaluation. This testing process is cumbersome and lacks precision. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a drill bit performance testing platform that can evaluate the drilling speed, strength, and wear resistance of the drill bit under test, providing a more comprehensive assessment of the performance parameters of diamond drill bits.

[0005] (II) Technical Solution To achieve the above objectives, this application provides a drill bit performance testing bench, including a mounting base, two support columns spaced apart on the mounting base, a T-shaped bracket at the top of each support column, and a hydraulic cylinder on the upper side of the T-shaped bracket. The piston end of the hydraulic cylinder is located near the mounting base and is connected to a motor. The output end of the motor is connected to a connecting rod, and the end of the connecting rod away from the motor is connected to the drill bit to be tested. A torque testing assembly is rotatably mounted on the mounting base and below the drill bit to be tested, and a workpiece is mounted on the torque testing assembly.

[0006] Preferably, a drilling rig holder is provided on the mounting base and on one side of the support column. The drilling rig holder is connected to the motor and limits its horizontal movement.

[0007] Preferably, the drilling rig holder includes a support arm fixedly connected to the mounting base, with one end of the support arm away from the mounting base connected to the T-shaped bracket; a mounting shell that can slide vertically is sleeved on the support arm, and a locking knob is threaded onto the mounting shell, one end of which passes through the mounting shell and abuts against the support arm when tightened; a support beam is provided on the side of the mounting shell near the motor, and a limiting cavity is formed on the side of the support beam away from the mounting shell and near the mounting base, with the end of the motor away from the drive shaft located in the limiting cavity, and the motor and the limiting cavity slidingly connected relative to each other in the vertical direction; a first sliding hole is provided on the support beam, the first sliding hole communicating with the limiting cavity, and the piston end of the hydraulic cylinder passing through the first sliding hole and connected to the motor.

[0008] Preferably, the torque testing assembly includes a holding basin, the bottom of which is rotatably connected to the upper side of the mounting base via a support shaft; the support shaft is coaxially arranged with the drill bit to be tested; a placement cavity is formed on the side of the holding basin near the drill bit to be tested, and the center of the workpiece is fixed in the placement cavity by bolts; a baffle is provided on the outer side of the holding basin and near the support arm, and a mounting plate is provided on the support arm and near the holding basin, with a pressure sensor provided on the mounting plate; when the holding basin rotates, the baffle abuts against the pressure sensor.

[0009] Preferably, at least one support wheel is rotatably provided on one side of the container near the mounting base, and the support wheel and the support shaft are located on opposite sides of the center of the container.

[0010] Preferably, a guide plate is fixed between the two supporting columns, and a rotating bushing is provided in the middle of the guide plate, through which the connecting rod passes.

[0011] Preferably, a rack is fixed to the vertical side of the support arm, and a lifting knob is rotatably provided on the mounting housing. A gear is provided at one end of the lifting knob located inside the mounting housing, and the gear meshes with the rack.

[0012] Preferably, the output shaft of the motor is fixed to the connecting rod by a coupling, a water inlet pipe is provided on the coupling, a first water inlet hole is formed in the coupling, a second water inlet hole is formed through the connecting rod, and a coolant hole is formed on the drill bit to be tested; the first water inlet hole, the second water inlet hole and the coolant hole are connected; and a drain hole is provided at the bottom of the container.

[0013] Preferably, the workpiece to be processed includes a pad and a grinding wheel, the grinding wheel is fixedly connected to the pad, the pad is a circular pad, a ratchet is provided in the circumference of the pad, and a detection component elastically connected to the ratchet is provided in the holding basin.

[0014] Preferably, the detection component includes a tension sensor fixed inside the container. The detection end of the tension sensor is connected to a sleeve. A telescopic rod is provided at the end of the sleeve away from the tension sensor. One end of the telescopic rod is located inside the sleeve, and a tension spring is provided inside the sleeve. One end of the tension spring is connected to the bottom end of the sleeve, and the other end is connected to the telescopic rod. A ratchet block is provided at the end of the telescopic rod away from the tension sensor, and the ratchet block meshes with the ratchet gear.

[0015] (III) Beneficial Effects This invention provides a drill bit performance testing bench. A hydraulic cylinder, a motor, and a drill bit holder, mounted on the upper side of the mounting base, control the drill bit under test to rotate horizontally while simultaneously feeding vertically. During feeding, the drill bit can be drilled into the workpiece. During drilling, the feed time, torque, and other parameters can be calculated and measured, thereby evaluating the drilling speed, strength, and wear resistance of the drill bit under test. This allows for a more comprehensive assessment of the performance parameters of diamond drill bits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a drill bit performance testing platform according to the present invention; Figure 2 This is a cross-sectional view of a drill bit performance testing bench according to the present invention; Figure 3 This is a schematic diagram of a protruding pressure sensor in a drill bit performance testing bench according to the present invention; Figure 4 for Figure 3 Enlarged view of the A-structure in the middle; Figure 5 This is a cross-sectional view of a tension spring protruding from the casing in a drill bit performance testing bench according to the present invention. Figure 6 This is a schematic diagram of a prominent embodiment 2 of a drill bit performance testing bench of the present invention.

[0017] Marked in the attached diagram: 100. Mounting base; 110. Support column; 120. T-shaped bracket; 130. Guide and straightening plate; 140. Rotating bushing; 200. Hydraulic cylinder; 300. Motor; 310. Connecting rod; 311. Second water inlet; 320. Coupling; 321. Water inlet pipe; 322. First water inlet; 400. Drill bit to be tested; 410. Coolant hole; 500. Torque testing assembly; 510. Container; 511. Support shaft; 512. Placement cavity; 513. Drain hole; 520. Baffle; 530. Mounting plate; 540 550. Pressure sensor; 600. Support wheel; 610. Workpiece to be processed; 620. Pad; 630. Grinding wheel; 700. Ratchet; 710. Drill rig holder; 720. Support arm; 730. Mounting housing; 740. Locking knob; 741. Support beam; 742. Limiting cavity; 743. First sliding hole; 750. Rack; 760. Lifting knob; 770. Gear; 800. Detection assembly; 810. Tension sensor; 820. Sleeve; 830. Telescopic rod; 840. Tension spring; 850. Racket block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 This invention provides a drill bit performance testing bench, see [link to relevant documentation]. Figures 1-6The system includes a mounting base 100, on which two support columns 110 are spaced apart. A T-shaped bracket 120 is provided at the top of the support columns 110, and a hydraulic cylinder 200 is provided on the upper side of the T-shaped bracket 120. The piston end of the hydraulic cylinder 200 is located on the side close to the mounting base 100 and is connected to a motor 300. The output end of the motor 300 is connected to a connecting rod 310, and the end of the connecting rod 310 away from the motor 300 is fixedly connected to a drill bit 400 to be tested. A torque testing assembly 500 is rotatably arranged on the mounting base 100 and below the drill bit 400 to be tested. A workpiece 600 to be processed is mounted on the torque testing assembly 500. When testing the drill bit 400, the connecting rod 310 is rotated by the motor 300, and the connecting rod 310 drives the drill bit 400 to rotate. During the rotation, the drill bit 400 is moved vertically by the hydraulic cylinder 200. During the movement, the drill bit 400 drills a hole in the workpiece 600. During the drilling process, parameters such as drilling time and torque are recorded, and the performance of the drill bit 400 is judged based on these parameters and the state of the drill bit 400.

[0020] Among them, the end of the connecting rod 310 away from the motor 300 is fixed to the drill bit 400 to be tested. The fixing method adopts the existing technology of connecting the drill bit to the drilling machine. Different fixing methods can be set according to different specifications of drill bits, which are not limited here.

[0021] A drilling rig holder 700 is provided on the mounting base 100 and on one side of the support column 110. The drilling rig holder 700 is connected to the motor 300 and limits its horizontal movement.

[0022] The drilling rig holder 700 includes a support arm 710 fixedly connected to the mounting base 100, with one end of the support arm 710 away from the mounting base 100 connected to a T-shaped bracket 120.

[0023] A mounting shell 720, capable of sliding vertically, is fitted onto the support arm 710. A locking knob 730 is threaded onto the mounting shell 720, with one end passing through the mounting shell 720 and engaging with the support arm 710 when tightened. A support beam 740 is located on the side of the mounting shell 720 closest to the motor 300. A limiting cavity 741 is formed on the side of the support beam 740 furthest from the mounting shell 720 and closest to the mounting base 100. The end of the motor 300 furthest from the drive shaft is located within the limiting cavity 741, and the motor 300 and the limiting cavity 741 are slidably connected vertically. A first sliding hole 742 is formed on the support beam 740, connecting to the limiting cavity 741. The piston end of the hydraulic cylinder 200 passes through the first sliding hole 742 and is connected to the motor 300. The drill rig holder 700 can limit the horizontal position of the motor 300, allowing it to move only in the vertical direction, thus preventing the motor 300 from swaying horizontally during the feeding process.

[0024] Furthermore, a rack 750 is fixed to the vertical side of the support arm 710, and a lifting knob 760 is rotatably mounted on the mounting housing 720. A gear 770 is located at one end of the lifting knob 760 inside the mounting housing 720, and the gear 770 meshes with the rack 750. By controlling the lifting knob 760, the mounting housing 720 can be moved vertically. When the mounting housing 720 moves to the appropriate position, it is simultaneously locked by a locking knob 730.

[0025] The torque testing assembly 500 includes a container 510, the bottom of which is rotatably connected to the upper side of the mounting base 100 via a support shaft 511; the support shaft 511 is coaxially arranged with the drill bit 400 to be tested.

[0026] Even better, a guide and straightening plate 130 is fixed between the two support columns 110, and a rotating bushing 140 is provided in the middle of the guide and straightening plate 130, through which the connecting rod 310 passes.

[0027] A placement cavity 512 is formed on the side of the container 510 near the drill bit 400 to be tested. The center of the workpiece 600 is fixed in the placement cavity 512 by bolts. The drill bit 400 to be tested drills a hole outside the center of the workpiece 600. During the test drilling process, the drill bit 400 to be tested applies a tangential force to the workpiece 600, causing the container 510 to have a tendency to move and rotate.

[0028] A baffle 520 is provided on the outer side of the holding basin 510 and near the support arm 710. A mounting plate 530 is provided on the support arm 710 and near the holding basin 510. A pressure sensor 540 is provided on the mounting plate 530. When the holding basin 510 rotates, the baffle 520 abuts against the pressure sensor 540. The torque applied to the holding basin 510 is obtained through the pressure sensor 540. The torque applied by the test drill bit to the workpiece 600 is calculated by using the measured torque, the rotation radius of the holding basin 510, the drilling position of the test drill bit, and the distance between the center of the workpiece 600.

[0029] At least one support wheel 550 is rotatably provided on one side of the container 510 near the mounting base 100. The support wheel 550 and the support shaft 511 are located on both sides of the center of the container 510.

[0030] The workpiece 600 being processed includes a pad 610 and a grinding wheel 620. The grinding wheel 620 is fixedly connected to the pad 610. The pad 610 is a circular pad. A ratchet 630 is provided in the circumference of the pad 610. A detection component 800 that is elastically connected to the ratchet 630 is provided in the container 510.

[0031] The detection assembly 800 includes a tension sensor 810 fixed inside the container 510. A sleeve 820 is connected to the detection end of the tension sensor 810. A telescopic rod 830 is located at the end of the sleeve 820 away from the tension sensor 810. One end of the telescopic rod 830 is located inside the sleeve 820, and a tension spring 840 is installed inside the sleeve 820. One end of the tension spring 840 is connected to the bottom of the sleeve 820, and the other end is connected to the telescopic rod 830. A ratchet block 850 is located at the end of the telescopic rod 830 away from the tension sensor 810, and the ratchet block 850 meshes with a ratchet gear 630. The detection assembly 800 determines whether there is relative movement between the workpiece 600 and the container 510, thereby improving the accuracy of the test.

[0032] Even better, to prevent the thorn block 850 from disengaging from the ratchet gear 630, a limit clip is provided at the bottom of the container 510 to limit the sleeve 820.

[0033] This invention provides a drill bit performance testing bench. A hydraulic cylinder, a motor, and a drill bit holder, mounted on the upper side of the mounting base, control the drill bit under test to rotate horizontally while simultaneously feeding vertically. During feeding, the drill bit can be drilled into the workpiece. During drilling, the feed time, torque, and other parameters can be calculated and measured, thereby evaluating the drilling speed, strength, and wear resistance of the drill bit under test. This allows for a more comprehensive assessment of the performance parameters of diamond drill bits.

[0034] Example 2 This embodiment differs from Embodiment 1 in that: the output shaft of the motor 300 is fixed to the connecting rod 310 via a coupling 320; a water inlet pipe 321 is provided on the coupling 320; a first water inlet hole 322 is formed inside the coupling 320; a through second water inlet hole 311 is formed inside the connecting rod 310; and a coolant hole 410 is formed on the drill bit 400 to be tested; the first water inlet hole 322, the second water inlet hole 311, and the coolant hole 410 are connected. A drain hole 513 is provided at the bottom of the container 510. A water tank is connected through the drain hole 513. This structure is used to test the drill bit 400 with the coolant hole 410.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Without conflict, the embodiments and features in the embodiments of this invention can be combined with each other.

[0037] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A drill bit performance testing bench, characterized in that: Includes a mounting base (100), on which two support columns (110) are spaced apart, and a T-shaped bracket (120) is provided at the top of the support columns (110), and a hydraulic cylinder (200) is provided on the upper side of the T-shaped bracket (120). The piston end of the hydraulic cylinder (200) is located on the side close to the mounting base (100) and is connected to a motor (300). The output end of the motor (300) is connected to a connecting rod (310), and the end of the connecting rod (310) away from the motor (300) is connected to a drill bit (400) to be tested. A torque testing assembly (500) is rotatably disposed on the mounting base (100) and below the drill bit (400) to be tested, and a workpiece (600) to be processed is mounted on the torque testing assembly (500). A drill rig holder (700) is provided on the mounting base (100) and on one side of the support column (110). The drill rig holder (700) is connected to the motor (300) and limits its horizontal movement. The drilling rig holder (700) includes a support arm (710) fixedly connected to the mounting base (100), and one end of the support arm (710) away from the mounting base (100) is connected to the T-shaped bracket (120). The support arm (710) is fitted with a mounting shell (720) that can slide in the vertical direction. A locking knob (730) is threaded onto the mounting shell (720). One end of the locking knob (730) passes through the mounting shell (720) and can abut against the support arm (710) when tightened. A support beam (740) is provided on the side of the mounting housing (720) near the motor (300). The end of the support beam (740) away from the mounting housing (720) and a limiting cavity (741) is provided on the side near the mounting base (100). The end of the motor (300) away from the drive shaft is located in the limiting cavity (741), and the motor (300) and the limiting cavity (741) are slidably connected relative to each other in the vertical direction; The support beam (740) has a first sliding hole (742) which is connected to the limiting cavity (741). The piston end of the hydraulic cylinder (200) passes through the first sliding hole (742) and is connected to the motor (300). The torque testing assembly (500) includes a container (510), the bottom of which is rotatably connected to the upper side of the mounting base (100) via a support shaft (511); the support shaft (511) is coaxially arranged with the drill bit (400) to be tested. The container (510) has a placement cavity (512) formed on one side near the drill bit (400) to be tested, and the center of the workpiece (600) to be processed is fixed in the placement cavity (512) by bolts; A baffle (520) is provided on the outer side of the container (510) and near the support arm (710). A mounting plate (530) is provided on the support arm (710) and near the container (510). A pressure sensor (540) is provided on the mounting plate (530). When the container (510) rotates, the baffle (520) abuts against the pressure sensor (540). The container (510) is rotatably provided with at least one support wheel (550) on one side near the mounting base (100), and the support wheel (550) and the support shaft (511) are located on both sides of the center of the container (510). The workpiece (600) being processed includes a pad (610) and a grinding wheel (620). The grinding wheel (620) is fixedly connected to the pad (610). The pad (610) is a circular pad (610). A ratchet (630) is provided on the circumference of the pad (610). A detection component (800) that is elastically connected to the ratchet (630) is provided in the container (510). The detection assembly (800) includes a tension sensor (810) fixed inside the container (510). The detection end of the tension sensor (810) is connected to a sleeve (820). A telescopic rod (830) is provided at the end of the sleeve (820) away from the tension sensor (810). One end of the telescopic rod (830) is located inside the sleeve (820), and a tension spring (840) is provided inside the sleeve (820). One end of the tension spring (840) is connected to the bottom end of the sleeve (820), and the other end is connected to the telescopic rod (830). A ratchet block (850) is provided at the end of the telescopic rod (830) away from the tension sensor (810), and the ratchet block (850) meshes with the ratchet gear (630).

2. The drill bit performance testing bench according to claim 1, characterized in that: A guide straightening plate (130) is fixed between the two supporting columns (110), and a rotating bushing (140) is provided in the middle of the guide straightening plate (130), through which the connecting rod (310) passes.

3. The drill bit performance testing bench according to claim 1, characterized in that: A rack (750) is fixed to the vertical side of the support arm (710), and a lifting knob (760) is rotatably provided on the mounting shell (720). A gear (770) is provided at one end of the lifting knob (760) located inside the mounting shell (720), and the gear (770) meshes with the rack (750).

4. The drill bit performance testing bench according to claim 1, characterized in that: The output shaft of the motor (300) is fixed to the connecting rod (310) by a coupling (320). A water inlet pipe (321) is provided on the coupling (320). A first water inlet hole (322) is formed in the coupling (320). A second water inlet hole (311) is formed through the connecting rod (310). A coolant hole (410) is formed on the drill bit (400) to be tested. The first water inlet hole (322), the second water inlet hole (311) and the coolant hole (410) are connected. A drain hole (513) is provided at the bottom of the container (510).

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