Tooth arrangement testing device for PDC drill bit production

By designing a tooth-laying test device for PDC drill bit production, and utilizing components such as hydraulic rods and pushers, the individual replacement and addition of sample layers can be achieved, solving the problem that existing devices need to be completely rebuilt, and realizing convenient simulation environment construction and sample layer adjustment.

CN223815227UActive Publication Date: 2026-01-20SHAANXI XINGTONG PETROLEUM ENG TECH CO LTD
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Patent Information

Application Number
CN202520414239.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-20
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

The existing PDC drill bit testing equipment requires a complete rebuild of the simulation environment when changing or adding individual test sample layers, which is cumbersome.

Method used

A tooth-laying test device for PDC drill bit production was designed, comprising an upper shell and an inner shell. The device enables the individual replacement and addition of sample layers through components such as hydraulic rods and pushers, and simulates the underground environment in combination with a pressurization component.

Benefits of technology

It enables the rapid setup of a simulated PDC drill bit usage environment, and allows for adjustment of the layering state of test samples as needed, as well as individual replacement or addition of sample layers, making operation more convenient.

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Abstract

The utility model relates to the technical field of drill bit production, in particular to a tooth distribution testing device for PDC drill bit production, which comprises an upper shell, a discharge port and an inner shell, the discharge port is fixedly mounted at the lower end of the upper shell, the inner shell is slidably connected in the upper shell and used for placing a sample for testing, and the inner shell is used for placing the sample for testing. The discharge port is used for discharging a sample in the upper shell, the lower end of the discharge port is provided with a pressurizing assembly used for pressurizing the test sample, and the two sides of the inner shell are provided with separation assemblies used for separating the test sample; according to the PDC drill bit testing device, the use environment for simulating a PDC drill bit can be rapidly built, the layering state of a testing sample can be adjusted according to the needs of a user, when a new testing sample layer is replaced or added, replacement or adding of an independent sample layer can be achieved, a model needs to be built again, and compared with an existing testing device, the PDC drill bit testing device is more convenient and rapid to use. The push plate extrudes the test sample in the upper shell, so that the pressure in the test sample is increased, and the underground high-pressure environment is simulated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to drill bit production technical field especially relates to tooth distribution testing arrangement for PDC drill bit production. BACKGROUND

[0002] ‌PDC drill bit, namely polycrystalline diamond compact drill bit, is mainly used for the exploitation of petroleum and natural gas, and is especially suitable for the fields of gas, coalbed gas and shale gas, compared with the conventional roller bit, PDC drill bit performs well under complex geological conditions, PDC drill bit mainly cuts and breaks through tooth distribution on it, so when producing, the performance of PDC drill bit tooth distribution needs to be tested, and whether the drill bit is qualified is judged by building environmental simulation device and the running state of drill bit in simulated environment.

[0003] When simulating the use environment of the drill bit, the existing testing device generally adds the test samples into the device to be tested in layers in turn to build the use environment of the drill bit, and whether the drill bit is qualified is judged by observing the running state of the drill bit in the simulated model, but when building different simulated environment models, if only individual test sample layers need to be replaced, the existing simulated testing device needs to be completely rebuilt, which is very troublesome.

[0004] In view of the above-mentioned problem that the existing PDC drill bit testing device needs to be completely rebuilt when building different simulated environment models, if only individual test sample layers need to be replaced, the existing simulated testing device needs to be completely rebuilt, which is very troublesome, a simulated testing device capable of replacing or adding individual test sample layers is designed to overcome the above-mentioned problem. SUMMARY

[0005] In order to overcome the problem that the existing PDC drill bit testing device needs to be completely rebuilt when building different simulated environment models, if only individual test sample layers need to be replaced, the existing simulated testing device needs to be completely rebuilt, which is very troublesome.

[0006] The technical scheme of the utility model is as follows: a tooth distribution testing arrangement for PDC drill bit production, comprising an upper shell, a discharge port and an inner shell, the lower end of the upper shell is fixedly installed with the discharge port, the inner shell is slidably connected in the upper shell, the inner shell is used for placing test samples, the discharge port is used for discharging the samples in the upper shell, the lower end of the discharge port is provided with a pressurizing assembly for pressurizing the test samples, and the two sides of the inner shell are provided with separating assemblies for separating the test samples.

[0007] As a preferred, one side of the discharge port is fixedly connected with a support plate, the lower end of the support plate is fixedly installed with a foot, the lower end of the foot is fixedly installed with an antiskid pad, and the other side of the upper shell is provided with a valve for placing the PDC drill bit.

[0008] As preferred, one side of the upper shell is provided with an opening, the side opening of the upper shell is used for placing the inner shell, a support base is fixedly installed on the inner wall of the upper shell, a handle is fixedly installed on one side of the inner shell, both sides of the inner shell are provided with openings, and side insertion plates are slidably connected to the openings of the inner shell.

[0009] As preferred, both sides of the upper shell are provided with through openings, the through openings of the upper shell are used for allowing the side insertion plates to pass through, fixed racks one are fixedly installed on both sides of the upper shell, hydraulic rods one are fixedly installed on one side of the fixed racks one, push heads are fixedly connected to the output ends of the hydraulic rods one, the push heads face the side insertion plates, and the push heads are used for pushing the side insertion plates.

[0010] As preferred, fixed seats are fixedly installed on both sides of the upper end of the upper shell, an upper cover is arranged above the upper shell, connecting heads are fixedly connected to both sides of the upper cover, positioning holes are arranged on the surface of the connecting heads, threaded holes are arranged on one side of the fixed seats, positioning bolts are threadedly connected to one side of the fixed seats, the positioning holes of the connecting heads are matched with the positioning bolts, the upper cover is fixedly installed on the upper end of the fixed seats through the connecting heads, and annular sealing rings are arranged on the lower end of the upper cover.

[0011] As preferred, fixed racks two are fixedly installed on the lower end of the discharge port, hydraulic rods two are fixedly installed on the lower end of the fixed racks two, lower push plates are fixedly connected to the output ends of the hydraulic rods two, and the lower push plates are used for pushing the test samples in the upper shell upwards.

[0012] As preferred, sliding rails are fixedly connected to the inner wall of the discharge port, the lower push plates are slidably connected to the sliding rails, and the sliding rails are used for supporting the lower push plates.

[0013] The test device can quickly build a simulated use environment of a PDC drill bit, and the layered state of a test sample can be adjusted according to the needs of the user, and when a new test sample layer is replaced or added, the replacement or addition of a single sample layer can be realized, and the model needs to be rebuilt, so that the test device is more convenient compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A PDC drill bit production tooth distribution test device and an upper shell are shown in the three-dimensional structure schematic view.

[0015] Figure 2 A PDC drill bit production tooth distribution test device and a hydraulic rod one are shown in the three-dimensional structure schematic view.

[0016] Figure 3 A PDC drill bit production tooth distribution test device and an upper cover are shown in the three-dimensional structure schematic view.

[0017] Figure 4 The PDC drill bit production tooth distribution testing device of the utility model is shown in the three-dimensional structure schematic view of the side insertion plate.

[0018] Figure 5 The PDC drill bit production tooth distribution testing device of the utility model is shown in the three-dimensional structure schematic view of the slide rail.

[0019] Figure 6 The PDC drill bit production tooth distribution testing device of the utility model is shown in the three-dimensional structure schematic view of the side insertion plate. Figure 3 The A place amplification structure schematic view of the PDC drill bit production tooth distribution testing device.

[0020] Mark 1, upper shell; 2, discharge port; 3, support plate; 4, foot; 5, non-slip pad; 6, upper cover; 7, connector; 8, fixed seat; 9, positioning bolt; 10, inner shell; 11, side insertion plate; 12, handle; 13, fixed frame one; 14, hydraulic rod one; 15, push head; 16, fixed frame two; 17, hydraulic rod two; 18, lower push plate; 19, slide rail; 20, support base. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings and examples.

[0022] Please refer to Figure 1 - Figure 6 The utility model provides a kind of embodiment: PDC drill bit production tooth distribution testing device, including upper shell 1, still including discharge port 2 and inner shell 10, the lower end of upper shell 1 is fixedly installed with discharge port 2, upper shell 1 is slidably connected with inner shell 10, inner shell 10 is used to place sample for testing, discharge port 2 is used to discharge the sample in upper shell 1, the lower end of discharge port 2 is equipped with the pressurization assembly for pressurization test sample, the two sides of inner shell 10 are equipped with the separation assembly for separating test sample.

[0023] Please refer to Figure 1 - Figure 4In the embodiment, one side of the discharge port 2 is fixedly connected with a support plate 3, the lower end of the support plate 3 is fixedly installed with a foot 4, the lower end of the foot 4 is fixedly installed with an anti-skid pad 5, the other side of the upper shell 1 is provided with a valve for placing the PDC drill bit, one side of the upper shell 1 is provided with an opening, the side opening of the upper shell 1 is used for placing the inner shell 10, the inner wall of the upper shell 1 is fixedly installed with a support base 20, one side of the inner shell 10 is fixedly installed with a handle 12, both sides of the inner shell 10 are provided with openings, both sides of the inner shell 10 are slidably connected with side insertion plates 11, one end of the side insertion plate 11 is a rounded corner, which facilitates the separation of the test sample by the side insertion plate 11, the surface of the side insertion plate 11 is provided with an opening, the surface opening of the side insertion plate 11 serves as a holding place for pulling the side insertion plate 11, the side insertion plate 11 is used for separating the test sample, both sides of the upper shell 1 are provided with through openings, the through openings of the upper shell 1 are used for the side insertion plate 11 to pass through, both sides of the upper shell 1 are fixedly installed with fixed frames one 13, one side of the fixed frame one 13 is fixedly installed with a hydraulic rod one 14, the output end of the hydraulic rod one 14 is fixedly connected with a push head 15, the push head 15 is opposite to the side insertion plate 11, and the push head 15 is used for pushing the side insertion plate 11.

[0024] Please refer to Figure 3 , Figure 5 and Figure 6 In the embodiment, the upper ends of both sides of the upper shell 1 are fixedly installed with fixed seats 8, the upper end of the upper shell 1 is provided with an upper cover 6, both sides of the upper cover 6 are fixedly connected with connecting heads 7, the surface of the connecting head 7 is provided with a positioning hole, one side of the fixed seat 8 is provided with a threaded hole, one side of the fixed seat 8 is threadedly connected with a positioning bolt 9, the positioning bolt 9 is matched with the positioning hole of the connecting head 7, the upper cover 6 is fixedly installed on the upper end of the fixed seat 8 through the connecting head 7, the lower end of the upper cover 6 is provided with an annular sealing ring, the upper cover 6 is used for sealing the upper end of the upper shell 1, the lower end of the discharge port 2 is fixedly installed with a fixed frame two 16, the lower end of the fixed frame two 16 is fixedly installed with a hydraulic rod two 17, the output end of the hydraulic rod two 17 is fixedly connected with a lower push plate 18, the lower push plate 18 is used for pushing the test sample in the upper shell 1 upwards, the inner wall of the discharge port 2 is fixedly connected with a sliding rail 19, the lower push plate 18 is slidably connected with the sliding rail 19, and the sliding rail 19 is used for supporting the lower push plate 18.

[0025] In use, different categories of test samples are placed in the inner shell 10 in different positions as required, and then the inner shell 10 containing the test samples is placed in the upper shell 1, the support base 20 on the inner wall of the upper shell 1 is used to support the inner shell 10, after being placed, the surface opening of the side insertion plate 11 on both sides of the inner shell 10 is held, and the side insertion plate 11 is pulled outwards, so that the test samples will fall from the lower opening of the inner shell 10, and the test sample model is thus completed, so as to simulate the use environment of the PDC drill bit, and different categories of test samples represent different underground layers, the PDC drill bit for testing is placed from the valve on one side of the upper shell 1, and then the test is carried out, when it is necessary to replace the test sample model, the hydraulic rod one 14 on both sides of the upper shell 1 is started, the hydraulic rod one 14 pushes the push head 15 to push the side insertion plate 11 back to the original position, so that the test sample model is separated again, the test sample layer to be replaced is pulled out through the handle 12, and the new sample is placed in the inner shell 10 and then placed in the inner shell 10 again, the hydraulic rod two 17 on the fixing frame two 16 pushes the lower push plate 18 to extrude the test sample in the upper shell 1, so that the pressure in the test sample is increased, so as to simulate the high-pressure environment of the underground, and the slide rail 19 supports the lower push plate 18 to a certain extent, so as to ensure the stability of the movement route of the lower push plate 18.

[0026] Through the above steps, the test device can quickly build a simulated use environment of the PDC drill bit, and the layered state of the test samples can be adjusted according to the needs, and when the new test sample layer is replaced or added, the single sample layer can be replaced or added, and the model needs to be rebuilt, which is more convenient than the existing test device.

[0027] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the utility model.

Claims

1. A tooth distribution testing device for PDC bit production, comprising an upper shell (1); characterized in that: Also include the discharge port (2) and the inner shell (10), the lower end of the upper shell (1) is fixedly installed with discharge port (2), the upper shell (1) is slidably connected with the inner shell (10), the inner shell (10) is used for placing the sample for testing, the discharge port (2) is used for discharging the sample in the upper shell (1), the lower end of the discharge port (2) is provided with a pressurizing assembly for pressurizing the test sample, the two sides of the inner shell (10) are provided with a separation assembly for separating the test sample.

2. The tooth pattern testing device for PDC bit production according to claim 1, characterized in that: The side of the discharge port (2) is fixedly connected with the supporting plate (3), the lower end of the supporting plate (3) is fixedly installed with the foot (4), the lower end of the foot (4) is fixedly installed with the anti-skid pad (5), the other side of the upper shell (1) is provided with a valve for placing the PDC drill bit.

3. The tooth pattern testing device for PDC bit production of claim 2, wherein: The side of the upper shell (1) is provided with an opening, the side of the upper shell (1) is provided with an opening for placing the inner shell (10), the inner wall of the upper shell (1) is fixedly installed with the supporting base (20), one side of the inner shell (10) is fixedly installed with the handle (12), the two sides of the inner shell (10) are provided with openings, the two sides of the inner shell (10) are slidably connected with the side insertion plate (11), one end of the side insertion plate (11) is a rounded corner, the surface of the side insertion plate (11) is provided with an opening, the surface opening of the side insertion plate (11) is used as a holding place for pulling the side insertion plate (11), and the side insertion plate (11) is used for separating the test sample.

4. The tooth pattern testing device for PDC bit production according to claim 3, characterized in that: The two sides of the upper shell (1) are provided with through openings, the two sides of the upper shell (1) are provided with through openings for the side insertion plate (11) to pass through, the two sides of the upper shell (1) are fixedly installed with the fixed frame one (13), one side of the fixed frame one (13) is fixedly installed with the hydraulic rod one (14), the output end of the hydraulic rod one (14) is fixedly connected with the push head (15), the push head (15) is opposite to the side insertion plate (11), and the push head (15) is used for pushing the side insertion plate (11).

5. The tooth pattern testing device for PDC bit production according to claim 4, characterized in that: The upper end of the upper shell (1) is fixedly installed with the fixed seat (8), the upper end of the upper shell (1) is provided with the upper cover (6), the two sides of the upper cover (6) are fixedly connected with the connecting head (7), the surface of the connecting head (7) is provided with a positioning hole, one side of the fixed seat (8) is provided with a threaded hole, one side of the fixed seat (8) is threadedly connected with the positioning bolt (9), the positioning bolt (9) is matched with the positioning hole of the connecting head (7), the upper cover (6) is fixedly installed on the upper end of the fixed seat (8) through the connecting head (7), the lower end of the upper cover (6) is provided with an annular sealing ring, and the upper cover (6) is used for sealing the upper end of the upper shell (1).

6. The tooth pattern testing device for PDC bit production according to claim 5, characterized in that: The lower end of the discharge port (2) is fixedly installed with the fixed frame two (16), the lower end of the fixed frame two (16) is fixedly installed with the hydraulic rod two (17), the output end of the hydraulic rod two (17) is fixedly connected with the lower push plate (18), and the lower push plate (18) is used for pushing the test sample in the upper shell (1) upward.

7. The tooth pattern testing device for PDC bit production according to claim 6, characterized in that: The inner wall of the discharge port (2) is fixedly connected with the sliding rail (19), the lower push plate (18) is slidably connected with the sliding rail (19), and the sliding rail (19) is used for supporting the lower push plate (18).