Rock strength detection device based on shale brittleness characteristic detection

Abstract

The invention provides a shale brittleness characteristic detection-based rock strength detection device, which comprises a detection machine body, a detection table and a height adjustment mechanism are arranged in the detection machine body, a cleaning mechanism is mounted on the height adjustment mechanism, the height adjustment mechanism is used for driving the cleaning mechanism to move up and down, and the cleaning mechanism is used for cleaning the upper surface of the detection table; the front side of the detection machine body is opened and provided with a protective door, and the protective door can be opened forwards to expose the detection table or closed backwards to shield the detection table. The device integrates detection, protection and automatic sweeping, is compact in structure, can prevent broken stone splashing in the detection process through the protection door, protects the safety of detection personnel, can automatically sweep and detect residual chippings through the sweeping mechanism after detection, and improves the detection efficiency; furthermore, the device also comprises a pedestal, and the detection machine body is located at the rear part of the pedestal. Guardrails are arranged on the left side and the right side of the front area of the base.

Description

Technical Field

[0001] This invention relates to the field of shale testing equipment technology, and specifically to a rock strength testing device based on the detection of shale brittleness characteristics. Background Technology

[0002] Rock strength testing equipment based on shale brittleness characteristics is a precision instrument designed specifically for assessing the brittleness and mechanical properties of sedimentary rocks such as shale. It quantifies the rock brittleness index by simulating the deep underground stress environment and combining acoustic wave method or mineral composition method, thereby predicting the ease of rock fracture and the tendency for sudden failure.

[0003] Existing testing equipment lacks protective measures and automatic cleaning mechanisms, posing a risk of personnel injury from flying debris during operation. Furthermore, manual cleaning of the testing platform is required after testing, resulting in a large workload and significant time consumption. Patent document (CN216560039U) discloses an experimental device for testing the brittleness of deep shale gas rocks. The device includes a main body with a connecting rod fixedly connected to one side, and a fixing ring fixedly connected to one side of the connecting rod. A connecting plate is slidably connected to the outer surface of the fixing ring. After the rock is placed on the placement plate, the first door baffle is rotated through the sliding connection between the connecting plate and the fixing ring, forming a closed space with the second door baffle. Simultaneously, pulling the pull plate causes the first locking rod to slide. When the position of the sleeve aligns with the position of the first locking rod, releasing the pull plate allows the first locking rod to slide back into the sleeve through the extension and retraction of the first spring, fixing the position of the first door baffle. This prevents injury to personnel from flying debris generated when pressure is applied to the rock.

[0004] Although the experimental device disclosed above has the function of shielding the tested rocks and can effectively prevent the fragments of rocks from injuring people, the testing platform still needs to be cleaned manually after the test, which is both labor-intensive and time-consuming, affecting the testing efficiency. Summary of the Invention

[0005] To address at least one of the above technical problems, this invention provides a rock strength testing device based on the detection of shale brittleness characteristics.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: This invention provides a rock strength testing device based on the detection of brittle characteristics of shale, comprising a testing body, wherein the testing body is provided with a testing platform and a height adjustment mechanism, and a cleaning mechanism is installed on the height adjustment mechanism. The height adjustment mechanism is used to drive the cleaning mechanism to move up and down, and the cleaning mechanism is used to clean the upper surface of the testing platform. The front side of the testing body has an opening and is equipped with a protective door, which can be opened forward to expose the testing platform or closed backward to cover the testing platform.

[0007] The beneficial effects of this invention are: This invention integrates detection, protection, and automatic cleaning into a compact structure. It not only prevents debris from splashing during detection, protecting personnel, but also automatically cleans residual debris after detection, improving efficiency. Specifically, the cleaning mechanism automatically removes residual debris from the testing platform, eliminating manual cleaning, reducing workload and time, and increasing efficiency. The height adjustment mechanism allows for flexible height adjustment to accommodate different cleaning needs, and can be finely adjusted downwards when cleaning components wear out, offering good adaptability and a long service life. Furthermore, the openable and closable protective door effectively shields the testing area during detection, preventing debris splashing and protecting personnel.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the height adjustment mechanism includes a vertical lead screw and a vertical slide rail. The two ends of the vertical lead screw are rotatably connected to the detection machine body. The vertical slide rail is fixed to the side wall of the detection machine body. A cleaning platform is slidably connected to the vertical slide rail. The cleaning platform and the vertical lead screw cooperate to form a lead screw pair. The cleaning mechanism is installed on the cleaning platform. The detection machine body is also equipped with a transmission box. The input end of the transmission box is equipped with a driving component. The output end of the transmission box is coaxially connected to the vertical lead screw.

[0010] The drive unit drives the vertical lead screw to rotate through the transmission box. The vertical lead screw and the cleaning platform convert the rotation into vertical linear motion, which facilitates the up and down adjustment of the cleaning mechanism. The tester only needs to control the drive unit to control the height of the cleaning mechanism. The operation is simple and convenient with low difficulty.

[0011] Furthermore, the cleaning mechanism includes a cleaning motor, a motor mounting base is fixed on the housing of the cleaning motor, the motor mounting base is fixed on the cleaning platform, the output shaft of the cleaning motor extends downward and is rotatably connected to the cleaning platform, a cleaning plate is connected to the output shaft of the cleaning motor, the upper and lower sides of the cleaning plate contact the motor mounting base and the cleaning platform respectively, one end of the cleaning plate extends horizontally and a cleaning brush is installed on its lower side.

[0012] The cleaning plate is limited by the motor mounting bracket and the cleaning platform to ensure that the cleaning brush rotates horizontally. By rotating the cleaning motor in both directions, the cleaning brush can be driven to rotate horizontally back and forth, which facilitates the automatic cleaning of residual debris on the inspection platform. The cleaning efficiency is high, reducing the workload and time spent on inspection. In addition, the cleaning brush can be removed from the cleaning plate for replacement when it is worn, making maintenance convenient.

[0013] Furthermore, a spring is fitted at the upper end of the vertical lead screw, with the upper end of the spring abutting against the inner top wall of the detection machine body and the lower end of the spring abutting against the cleaning platform.

[0014] By applying preload to the cleaning platform with a spring, the stability of the cleaning platform when adjusting its height can be improved, ensuring good contact between the cleaning brush and the surface of the inspection table, resulting in good cleaning effect.

[0015] Furthermore, a receiving bucket is fitted on the outside of the testing platform; the receiving bucket includes an inner cylinder and an outer cylinder, and a bottom plate is connected to the bottom of the annular space between the inner cylinder and the outer cylinder, with the inner cylinder fitted on the outside of the testing platform.

[0016] During cleaning, residual debris falls into the annular space of the receiving bucket. Once full, it can be removed from the testing platform for replacement and cleaning, improving the cleanliness of the testing machine.

[0017] Furthermore, the first end of the protective door is hinged to one side of the front outer wall of the detection machine body, and the inner side of the second end of the protective door is connected to the other side of the front outer wall of the detection machine body through a first magnet.

[0018] When the protective door approaches the testing machine, the automatic engagement of the first pair of magnets ensures that the protective door is automatically locked, preventing the operator from missing the inspection due to the protective door being partially closed, thus improving safety. At the same time, after cleaning is completed, when the cleaning motor drives the cleaning plate forward away from the testing table, it can continue to drive the cleaning plate forward, thereby automatically pushing open the protective door with the cleaning plate, which is convenient for notifying the operator that cleaning is complete. This also eliminates the need for manual door opening, improving testing efficiency.

[0019] Furthermore, a forward-extending door baffle is fixed to one side of the front outer wall of the detection body, and the door baffle is located on one side of the first end of the protective door.

[0020] When the protective door is opened to more than 90°, its side contacts the door baffle, which avoids damage caused by excessive rotation of the protective door and has a long service life.

[0021] Furthermore, the door baffle is connected to the outer side of the first end of the protective door via a second magnet.

[0022] With the second pair of magnets, the protective door can automatically attach to the door baffle when it is opened, thus keeping it in the open state and preventing the protective door from bouncing back after hitting the door baffle, making it easy to operate.

[0023] Furthermore, it also includes a base, with the detection body located at the rear of the base; guardrails are also provided on the left and right sides of the front area of ​​the base, with the rear end of the guardrails connected to the detection body.

[0024] When preparing for testing, operators should leave the area in front of the testing machine and retreat outside the guardrail, which can prevent unauthorized personnel from approaching, thus improving safety.

[0025] Furthermore, a dual-axis motor is fixed to the rear of the base. Both ends of the dual-axis motor are connected to drive shafts. The end of the drive shaft away from the dual-axis motor is rotatably connected to the base. A barrier bar is fixed on the drive shaft. The barrier bar extends forward and a protective baffle is connected between the two barrier bars. A guardrail is fixed to the front of each barrier bar.

[0026] When preparing for testing, the dual-axis motor is started. The output shaft of the dual-axis motor drives the drive shaft to rotate, and the drive shaft drives the barrier bar to move upward. As a result, the front end of the barrier bar tilts upward, which can make the guardrail partially overlap with the testing machine body. At the same time, the protective baffle blocks the gap on the upper or lower side of the protective door, improving the protective effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the structure of the testing machine.

[0029] Figure 3 This is a schematic diagram of the internal structure of the machine being inspected.

[0030] Figure 4 This is a schematic diagram of the testing station.

[0031] Figure 5 This is a schematic diagram of the height adjustment mechanism.

[0032] Figure 6 This is a structural diagram of the base and guardrail.

[0033] In the accompanying drawings, the technical features represented by each reference numeral are as follows: 1-Detection body; 2-Detection table; 3-Height adjustment mechanism; 4-Sweeping mechanism; 5-Safety door; 6-Vertical lead screw; 7-Vertical slide rail; 8-Sweeping platform; 9-Transmission box; 10-Drive component; 11-Sweeping motor; 12-Sweeping plate; 13-Sweeping brush; 14-Spring; 15-Receiving bin; 16-First magnet pair; 17-Door handle; 18-Door baffle; 19-Second magnet pair; 20-Base; 21-Guardrail; 22-Dual-axis motor; 23-Drive shaft; 24-Blocking bar; 25-Safety baffle. Detailed Implementation

[0034] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0035] See this invention Figure 1-6 .

[0036] This invention provides a rock strength testing device based on the detection of brittle characteristics of shale, comprising a testing body 1, wherein the testing body 1 is provided with a testing platform 2 and a height adjustment mechanism 3, and a cleaning mechanism 4 is installed on the height adjustment mechanism 3. The height adjustment mechanism 3 is used to drive the cleaning mechanism 4 to move up and down, and the cleaning mechanism 4 is used to clean the upper surface of the testing platform 2. The front side of the testing body 1 has an opening and a protective door 5 is installed. The protective door 5 can be opened forward to expose the testing platform 2 or closed backward to cover the testing platform 2.

[0037] principle: In use, open the protective door 5, place the rock sample on the testing platform 2, and then close the protective door 5 to shield the testing equipment. This effectively prevents debris such as gravel from splashing out during the testing process, protecting the operator's safety. After one test is completed, the height adjustment mechanism 3 drives the cleaning mechanism 4 to move to the upper height of the testing platform 2. Then, the cleaning mechanism 4 starts to clean the remaining debris on the upper part of the testing platform 2, preparing for the next test. After cleaning, the protective door 5 can be opened again to place the rock sample for the next test.

[0038] Note: A pressurizing device or other testing equipment can be installed inside the testing body 1 above the testing platform 2. This equipment can be used to perform pressure tests on rock samples placed on the testing platform 2. The testing equipment is existing equipment. The testing platform 2 can also be a hydraulic lifting type, which allows for flexible height control.

[0039] This invention integrates detection, protection, and automatic cleaning into a compact structure. It not only prevents stone fragments from splashing during detection, protecting the safety of testing personnel, but also automatically cleans residual debris after detection, improving efficiency. Specifically, the cleaning mechanism 4 automatically cleans residual debris from the testing platform 2, eliminating manual cleaning, reducing workload and time, and increasing efficiency. The height adjustment mechanism 3 allows for flexible adjustment of the cleaning mechanism 4's height, adapting to cleaning needs at different heights. It also allows for downward fine-tuning when cleaning components wear down, demonstrating good adaptability and a long service life. Furthermore, the openable and closable protective door 5 effectively shields the testing area during detection, preventing stone fragments from splashing and protecting the safety of testing personnel.

[0040] Furthermore, such as Figure 3-5 As shown: The height adjustment mechanism 3 includes a vertical lead screw 6 and a vertical slide rail 7. The two ends of the vertical lead screw 6 are rotatably connected to the detection body 1. The vertical slide rail 7 is fixed on the side wall of the detection body 1. A cleaning platform 8 is slidably connected on the vertical slide rail 7. The cleaning platform 8 and the vertical lead screw 6 cooperate to form a lead screw pair. The cleaning mechanism 4 is installed on the cleaning platform 8. The detection body 1 is also provided with a transmission box 9. The input end of the transmission box 9 is provided with a driving component 10. The output end of the transmission box 9 is coaxially connected to the vertical lead screw 6.

[0041] Preferably, the vertical lead screw 6 has bearings at both ends and is rotatably connected to the detection body 1 through the bearings. In addition, the transmission box 9 has two mutually perpendicular bevel gears. One bevel gear is fixedly sleeved on the vertical lead screw 6 to form the output end of the transmission box 9; the large end of the other bevel gear is fixed with a rotating shaft, which is rotatably connected to the housing of the transmission box 9 and extends out of the transmission box 9 to form its input end; the drive component 10 can be a servo motor or a rotary handle.

[0042] The drive component 10 drives the vertical lead screw 6 to rotate through the transmission box 9. The vertical lead screw 6 and the cleaning platform 8 convert the rotation into vertical linear motion, which facilitates the up and down adjustment of the cleaning mechanism 4. The inspection personnel only need to control the drive component 10 to control the height of the cleaning mechanism 4. The operation is simple and convenient with low difficulty.

[0043] Furthermore, the cleaning mechanism 4 includes a cleaning motor 11, a motor mounting base is fixed on the housing of the cleaning motor 11, the motor mounting base is fixed on the cleaning platform 8, the output shaft of the cleaning motor 11 extends downward and is rotatably connected to the cleaning platform 8, a cleaning plate 12 is connected to the output shaft of the cleaning motor 11, the upper and lower sides of the cleaning plate 12 contact the motor mounting base and the cleaning platform 8 respectively, one end of the cleaning plate 12 extends horizontally and a cleaning brush 13 is installed on its lower side.

[0044] Preferably, the sweeping brush 13 and the output shaft of the sweeping motor 11 can be connected by a key or a spline. In addition, the sweeping brush 13 is fixed to the sweeping plate 12 by bolts.

[0045] The cleaning plate 12 is limited by the motor mounting base and the cleaning platform 8 to ensure that the cleaning brush 13 rotates horizontally. The cleaning brush 13 can be driven to rotate back and forth horizontally by the forward and reverse rotation of the cleaning motor 11, which facilitates the automatic cleaning of residual debris on the detection platform 2. The cleaning efficiency is high, and the workload and time spent on detection are reduced. In addition, the cleaning brush 13 can be removed from the cleaning plate 12 for replacement when it is worn, which is convenient for maintenance.

[0046] Furthermore, a spring 14 is also sleeved on the upper end of the vertical lead screw 6. The upper end of the spring 14 abuts against the inner top wall of the detection machine body 1, and the lower end of the spring 14 abuts against the cleaning platform 8.

[0047] By applying a preload force to the cleaning platform 8 through the spring 14, the stability of the cleaning platform 8 when adjusting its height can be improved, ensuring good contact between the cleaning brush 13 and the surface of the detection table 2, resulting in a good cleaning effect.

[0048] Furthermore, a receiving bucket 15 is fitted on the outer side of the testing platform 2; the receiving bucket 15 includes an inner cylinder and an outer cylinder, and a bottom plate is connected to the bottom of the annular space between the inner cylinder and the outer cylinder, and the inner cylinder is fitted on the outer side of the testing platform 2.

[0049] During cleaning, residual debris falls into the annular space of the receiving bucket 15. Once full, it can be removed from the testing platform 2 for replacement and cleaning, thus improving the cleanliness of the testing machine body 1.

[0050] Furthermore, such as Figure 1-3 As shown: The first end of the protective door 5 is hinged to one side of the front outer wall of the detection machine body 1, and the inner side of the second end of the protective door 5 is connected to the other side of the front outer wall of the detection machine body 1 through the first magnet pair 16.

[0051] Preferably, the outer wall of the detection body 1 is provided with two hinge seats, and the first end of the protective door 5 is located between the two hinge seats and connected to the two hinge seats through the same hinge shaft. Furthermore, the first magnet pair 16 consists of two magnets, one of which is fixed to the inner side of the second end of the protective door 5, and the other magnet is fixed to the outer wall of the detection body 1, with the different magnetic poles of the two magnets facing each other when the protective door 5 is closed backwards. Additionally, a door handle 17 is fixed to the outer side of the second end of the protective door 5.

[0052] When the protective door 5 approaches the testing machine body 1, the automatic attraction of the first magnet 16 ensures that the protective door 5 is automatically locked, preventing the operator from missing the inspection due to the protective door 5 being partially closed, thus improving safety. At the same time, after cleaning is completed, when the cleaning motor 11 drives the cleaning plate 12 forward away from the testing table 2, it can continue to drive the cleaning plate 12 forward, so that the cleaning plate 12 can automatically push open the protective door 5, which is convenient to remind the operator that cleaning is completed. At the same time, it can save the manual operation of opening the door and improve the testing efficiency.

[0053] Furthermore, a forward-extending door baffle 18 is fixed to one side of the front outer wall of the detection body 1, and the door baffle 18 is located on one side of the first end of the protective door 5.

[0054] When the protective door 5 is opened to more than 90°, its side contacts the door baffle 18, which avoids damage caused by excessive rotation of the protective door 5 and ensures a long service life.

[0055] Furthermore, the door baffle 18 is connected to the outer side of the first end of the protective door 5 via a second magnet pair 19.

[0056] Note: The second magnet pair 19 includes two magnets, one of which is fixed to the outer side of the first end of the protective door 5, and the other is fixed to the door baffle 18. When the protective door 5 is opened, the different magnetic poles of the two magnets face each other.

[0057] When the protective door 5 is opened, it can automatically attach to the door baffle 18 via the second magnet 19, thus keeping it in the open state and preventing the protective door 5 from rebounding after hitting the door baffle 18, making operation convenient.

[0058] Furthermore, such as Figure 1 , 6 As shown: It also includes a base 20, and the detection body 1 is located at the rear of the base 20; guardrails 21 are also provided on the left and right sides of the front area of ​​the base 20, and the rear end of the guardrails 21 is connected to the detection body 1.

[0059] When preparing for testing, the operator leaves the area in front of the testing machine 1 and retreats to outside the guardrail 21. The guardrail 21 can prevent unauthorized personnel from approaching, thus improving safety.

[0060] Furthermore, a dual-axis motor 22 is fixed to the rear of the base 20. Both ends of the dual-axis motor 22 are connected to drive shafts 23. The end of the drive shaft 23 away from the dual-axis motor 22 is rotatably connected to the base 20. A barrier bar 24 is fixed on the drive shaft 23. The barrier bar 24 extends forward and a protective baffle 25 is connected between the two barrier bars 24. A guardrail 21 is fixed to the front of each barrier bar 24.

[0061] When preparing for testing, the dual-axis motor 22 is started. The output shaft of the dual-axis motor 22 drives the drive shaft 23 to rotate. The drive shaft 23 drives the barrier bar 24 to move upward, so that the front end of the barrier bar 24 tilts upward, which can make the guardrail 21 overlap with the testing machine body 1. At the same time, the protective baffle 25 blocks the gap on the upper or lower side of the protective door 5, improving the protection effect.

[0062] In the description of this invention, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this invention and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0063] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this invention, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixation," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixation" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this invention can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0065] In this invention, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" could mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Those skilled in the art can understand the specific meaning of the above descriptive terms in this invention based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0066] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] 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. The illustrative expressions of the above terms in this specification 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A rock strength testing device based on the detection of shale brittleness characteristics, characterized in that: The device includes a detection body (1), which contains a detection platform (2) and a height adjustment mechanism (3). A cleaning mechanism (4) is installed on the height adjustment mechanism (3). The height adjustment mechanism (3) is used to drive the cleaning mechanism (4) to move up and down. The cleaning mechanism (4) is used to clean the upper surface of the detection platform (2). The front of the detection body (1) is open and a protective door (5) is installed. The protective door (5) can be opened forward to expose the detection platform (2) or closed backward to cover the detection platform (2).

2. The rock strength testing device based on shale brittleness characteristic detection according to claim 1, characterized in that: The height adjustment mechanism (3) includes a vertical lead screw (6) and a vertical slide rail (7). The two ends of the vertical lead screw (6) are rotatably connected to the detection body (1). The vertical slide rail (7) is fixed on the side wall of the detection body (1). A cleaning platform (8) is slidably connected on the vertical slide rail (7). The cleaning platform (8) and the vertical lead screw (6) cooperate to form a lead screw pair. The cleaning mechanism (4) is installed on the cleaning platform (8). The detection body (1) is also provided with a transmission box (9). The input end of the transmission box (9) is provided with a drive component (10). The output end of the transmission box (9) is coaxially connected to the vertical lead screw (6).

3. The rock strength testing device based on shale brittleness characteristic detection according to claim 2, characterized in that: The cleaning mechanism (4) includes a cleaning motor (11), a motor mounting base is fixed on the housing of the cleaning motor (11), the motor mounting base is fixed on the cleaning platform (8), the output shaft of the cleaning motor (11) extends downward and is rotatably connected to the cleaning platform (8), a cleaning plate (12) is connected on the output shaft of the cleaning motor (11), the upper and lower sides of the cleaning plate (12) respectively contact the motor mounting base and the cleaning platform (8), one end of the cleaning plate (12) extends horizontally and a cleaning brush (13) is installed on its lower side.

4. The rock strength testing device based on shale brittleness characteristic detection according to claim 2, characterized in that: The upper end of the vertical lead screw (6) is also fitted with a spring (14), the upper end of the spring (14) abuts against the inner top wall of the detection body (1), and the lower end of the spring (14) abuts against the cleaning platform (8).

5. The rock strength testing device based on shale brittleness characteristic detection according to any one of claims 1-4, characterized in that: The testing platform (2) is fitted with a receiving bucket (15) on the outside; the receiving bucket (15) includes an inner cylinder and an outer cylinder, and the bottom of the annular space between the inner cylinder and the outer cylinder is closed and connected with a bottom plate, and the inner cylinder is fitted on the outside of the testing platform (2).

6. The rock strength testing device based on shale brittleness characteristic detection according to claim 1, characterized in that: The first end of the protective door (5) is hinged to one side of the front outer wall of the detection body (1), and the inner side of the second end of the protective door (5) is connected to the other side of the front outer wall of the detection body (1) through the first magnet pair (16).

7. The rock strength testing device based on shale brittleness characteristic detection according to claim 6, characterized in that: The front outer wall of the detection body (1) is also fixed with a door baffle (18) extending forward, which is located on the first end side of the protective door (5).

8. The rock strength testing device based on shale brittleness characteristic detection according to claim 7, characterized in that: The door baffle (18) is connected to the outer side of the first end of the protective door (5) via a second magnet pair (19).

9. The rock strength testing device based on shale brittleness characteristic detection according to claim 1, characterized in that: It also includes a base (20), the detection body (1) is located at the rear of the base (20); guardrails (21) are also provided on the left and right sides of the front area of ​​the base (20), and the rear end of the guardrails (21) is connected to the detection body (1).

10. The rock strength testing device based on shale brittleness characteristic detection according to claim 9, characterized in that: A dual-axis motor (22) is fixed at the rear of the base (20). Both ends of the dual-axis motor (22) are connected to drive shafts (23). The end of the drive shaft (23) away from the dual-axis motor (22) is rotatably connected to the base (20). A barrier bar (24) is fixed on the drive shaft (23). The barrier bar (24) extends forward. A protective baffle (25) is connected between the two barrier bars (24). A guardrail (21) is fixed at the front of each barrier bar (24).

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