A device for testing the abrasive performance of mining tools
By designing a tool abrasion performance test device for mineral mining including rock sealing unit, rock state reduction unit and tool abrasion performance testing unit, the problem of structural changes in regular-shaped rock samples during processing is solved, and the high confining environment is simulated, which improves the accuracy and authenticity of tool wear tests.
Patent Information
- Application Number
- CN202411785782.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2044-12-06
AI Technical Summary
In the wear test of existing mineral mining tools, regular-shaped rock samples may change their internal structure during processing, resulting in changes in hardness and toughness, affecting the accuracy of the test results. At the same time, it is technically difficult to simulate high confining pressure conditions, which affects the authenticity of the test.
A test device for abrasive performance of ore mining tools is designed, including a rock sealing unit, a rock state reduction unit and a tool abrasive performance testing unit. The device adheres the plastic substrate to the irregular rock sample through a temperature-controlled heating clamp to form a regular body, and simulates the high-confining environment through the molding platform and side panels to maintain the original structure and state of the rock.
The device can more accurately simulate actual mining conditions, improve the accuracy and practicality of tool wear testing, reduce the complexity and error of sample processing, and significantly simplify the test process.
Smart Images

Figure CN119246309B_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of tool mining wear testing, and in particular to a device for testing the abrasive performance of a mining tool. Background Art
[0002] During rock mining, it is necessary to conduct preliminary tool wear tests on the rocks in the mining area. This is because factors such as the mechanical properties, hardness, toughness, and bedding structure of the rock will have a significant impact on the wear of the tool during the mining process. Different rock types may have large differences in their physical and chemical properties. Therefore, when selecting suitable mining tools and determining parameters such as the tool speed, shape, and material, these characteristics of the rock must be fully considered. For example, in coal mining, the pick of the coal mining machine, as a key component, is the most prone to failure, the most consumed, and the most frequently replaced coal machine part. Its performance directly affects the mining efficiency and cost. The failure of the pick will seriously affect the working efficiency of the coal mining machine and the production cost of the coal enterprise. Therefore, it is particularly important to conduct preliminary tool wear tests to determine the most suitable tool type, shape, speed, material, and other parameters. Through preliminary tool wear tests, the interaction between the tool and the rock in the actual mining process can be simulated, and the wear under different tool parameters can be evaluated. This not only helps to understand the durability and performance of the tool under different rock conditions, but also provides an important basis for optimizing tool design, improving mining efficiency, and reducing production costs.
[0003] In the wear test of mining tools (such as coal mining machine picks), a rock fixture is usually used to fix the rock sample, and a set of devices simulating the feed action of the tool is set up to simulate the actual working conditions. The purpose of this test is to evaluate the wear of the tool under different parameters such as shape, angle and rotation speed, and optimize the tool design and use parameters accordingly. However, in the existing abrasion test of ore mining tools, regular-shaped rock samples are usually used. Although regular samples are easy to fix and operate in the experiment, and easy to measure and record data, the internal structure of the regular-shaped rock sample may change during the early processing (such as cutting), such as the generation of internal cracks, and the crack distribution and stress state may change, resulting in differences in the hardness and toughness of the sample from the original rock, thereby affecting the accurate evaluation of the tool wear, which to a certain extent limits the accuracy and practicality of the test results.
[0004] In order to more accurately simulate actual mining conditions, irregularly shaped rock samples are used for testing. These samples can be collected directly from the mining area and can maintain their original shape and internal structure. However, such samples that maintain their original shape and internal structure bring challenges in clamping and fixing, especially deep underground, where rocks are usually under high confining pressure, that is, they are tightly squeezed by other rocks around them. High confining pressure has a significant effect on the mechanical properties and deformation mode of rocks. For example, it can increase the strength and hardness of rocks, change their transition point from brittle to ductile, and profoundly affect the stress-strain relationship of rocks. However, in a laboratory environment, it is technically very difficult to accurately replicate such high confining pressure conditions for testing irregular rock samples. It can be seen that the existing technology needs to be further improved and improved. Summary of the invention
[0005] The present invention provides a device for testing the abrasive performance of a mining tool, so as to at least solve or alleviate one or more technical problems in the prior art, or at least provide a beneficial choice.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] A mineral mining tool abrasive performance test device, comprising a rock sealing unit, a rock state restoration unit, and a tool abrasive performance test unit;
[0008] The rock film sealing unit includes a rock film sealing platform that can be raised and lowered. A temperature-controlled heating clamp is provided on the rock film sealing platform. The temperature-controlled heating clamp is used to heat and soften the plastic substrate. The irregular rock sample is placed in the center of the platform. The temperature-controlled heating clamp is pressed downward to place the plastic substrate on the rock surface, so that the plastic substrate is closely attached to the rock surface.
[0009] The rock state restoration unit includes a molding platform and four independently movable side panels to form an enclosure area with adjustable size. After the rock with plastic substrate is sent into the enclosure area by the rock sealing platform, solidified material is injected into the enclosure area to form a regular body. The side panels apply pressure to the side of the regular body to restore the state of the regular body embedded in the original rock wall and simulate the confining pressure state of the rock.
[0010] The tool abrasion performance test unit includes a tool assembly and a tool loading device. The tool loading device can simulate the tool movement in the actual mining process to mine rocks in a regular body and realize accurate evaluation of tool wear.
[0011] In traditional tool abrasiveness tests, rock samples need to go through multiple processes such as cutting and grinding to be processed into standard-sized specimens. This process is not only time-consuming and labor-intensive, but may also change the original structure and properties of the rock. However, the use of the mineral mining tool abrasiveness test device of the present application does not require complex processing of the rock, but maintains the original structure and restores the state of the rock in the rock wall, so that it is squeezed and restricted by the surrounding rocks. The high confining pressure environment of the rock is simulated through the extrusion of the enclosed area with adjustable size and the side plates. This simulation method makes the tool wear test results closer to the actual mining process, and improves the accuracy and practicality of the tool wear test. This is of great significance for tool selection, wear prediction, and optimization of mining processes in the mineral mining process.
[0012] In a preferred implementation, the rock sealing platform is lifted and lowered at the center of the base, the rock sealing platform is provided with an exhaust hole, the base is provided with an exhaust channel, the exhaust channel is connected to a vacuum device, and the vacuum device vacuums the gap between the plastic substrate and the platform to make the plastic substrate fit tightly to the rock surface.
[0013] In a preferred implementation, the temperature-controlled heating clamp includes a first heating frame plate and a second heating frame plate, the plastic substrate is clamped between the two, and the base is provided with a guide column, and the first heating frame plate and the second heating frame plate can move linearly relative to the guide column.
[0014] In a preferred implementation, the forming platform is provided with a fixed angle plate with an L-shaped cross-section, the side plate is connected to the piston rod of the cylinder, the cylinder is fixedly connected to the forming platform through a connecting assembly, and the movement of the cylinder can make the side plate flush or staggered relative to the fixed angle plate.
[0015] In a preferred implementation, the molding platform is connected to a delivery pipeline, and the delivery pipeline is connected to a solidifying material filling tank.
[0016] In a preferred implementation, the molding platform is embedded with a temperature control system, which can heat or cool the regular body to simulate the temperature environment of the rock.
[0017] In a preferred implementation, the temperature control system includes a heat pipe, which protrudes from the molding platform. Hot medium or cold medium flows in the heat pipe to heat up or cool down the regular body. The side plates and the rock sealing platform are provided with temperature sensors to measure the temperature of the regular body in real time and send the data to the controller. The controller controls and adjusts the temperature according to the temperature signal.
[0018] In a preferred implementation, the rock sealing unit and the tool abrasion performance testing unit are arranged on a platform, the platform is provided with a guide rail, and the rock sealing unit / tool abrasion performance testing unit can move relative to the guide rail to correspond to the rock state restoration unit.
[0019] In a preferred implementation, the molding platform can rotate to simulate the actual conditions of rocks at different inclination angles and orientations on the rock wall.
[0020] In a preferred implementation, a plurality of irregular rock samples are embedded in the regular body for synchronous testing, thereby improving the overall test efficiency and the comparability of the test results.
[0021] The above structure has the following beneficial effects:
[0022] 1. The mineral mining tool abrasion performance test device of the present application can more realistically restore the state of the rock embedded in the original rock wall and the high confining pressure from all around by embedding irregular raw rock into a regular body and applying high confining pressure through the side plates. This helps to simulate the actual contact between the tool and the rock during the actual mining process. The environmental simulation is closer to the actual mining conditions, making the tool test results more accurate and reliable.
[0023] 2. The mineral mining tool abrasion performance test device of the present application controls the temperature of the regular body through the temperature control system set up on the forming platform, thereby simulating the rock state under different temperature environments, making the tool wear test closer to the actual working conditions, and the wear test results are more accurate and reliable, which helps to better evaluate the wear resistance and service life of the tool.
[0024] 3. The abrasive performance test device for mining tools of the present application can avoid the tedious steps of repeatedly fixing rock samples in each test by embedding multiple irregular rock samples into a regular body according to the operation of the present application. This not only saves time, but also reduces the test errors caused by improper fixation. The multiple rock samples in the regular body maintain the same posture when embedded, which ensures that they have consistent temperature, confining pressure and other conditions during the tool mining wear test, thereby improving the comparability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation of the present invention. In the drawings:
[0026] Figure 1 A schematic diagram showing the initial state of the abrasive performance test device for mining tools of the present application is depicted;
[0027] Figure 2 A schematic diagram of placing a plastic substrate and irregular rocks in the abrasive performance test device for mining tools of the present application is depicted;
[0028] Figure 3A schematic diagram of the plastic substrate of the present application attached to the upper side of an irregular rock is depicted;
[0029] Figure 4 A schematic diagram of the irregular rock and plastic substrate entering the enclosed area of the present application is depicted;
[0030] Figure 5 A schematic diagram of the enclosed area of the present application being filled with solidified material is depicted;
[0031] Figure 6 A schematic diagram showing a plurality of irregular rocks embedded in a regular body of the present application is depicted;
[0032] Figure 7 A schematic diagram of a platform for testing the abrasive performance of a mining tool of the present application is depicted;
[0033] Figure 8 A schematic diagram of a rock state reduction unit of the present application is depicted;
[0034] Fig. 9 A schematic diagram of the rock sealing unit of the present application is depicted;
[0035] Fig.10 A schematic diagram of a tool abrasiveness testing unit of the present application is depicted;
[0036] Description of labels:
[0037] 1- rock sealing unit; 10- base; 100- exhaust channel; 101- guide column; 11- rock sealing platform; 110- exhaust hole; 12- temperature-controlled heating clamp; 2- rock state restoration unit; 20- forming platform; 200- angle plate; 201- conveying pipeline; 21- side plate; 22- cylinder; 23- heat pipe; 3- tool abrasion performance test unit; 30- tool assembly; 31- tool loading device; 4- regular body; 40- irregular rock sample; 41- plastic substrate; 42- solidified material; 5- platform; 50- guide rail. DETAILED DESCRIPTION
[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0039] The present invention will be described below in conjunction with the accompanying drawings.
[0040] The specific plans adopted are:
[0041] like Figure 1-10 As shown, the present invention provides a device for testing the abrasive performance of a mining tool, including a rock sealing unit 1, a rock state restoration unit 2, and a tool abrasive performance testing unit 3;
[0042] The rock film sealing unit 1 comprises a rock film sealing platform 11 which can be raised and lowered. A temperature-controlled heating clamp 12 is provided on the rock film sealing platform. The temperature-controlled heating clamp is used to heat and soften the plastic substrate 41. The irregular rock sample 40 is placed in the center of the platform. The temperature-controlled heating clamp is pressed downward to place the plastic substrate on the rock surface so that the plastic substrate is closely attached to the rock surface.
[0043] The rock state restoration unit 2 includes a molding platform 20 and four independently movable side panels 21, forming an enclosure area with adjustable size. After the rock with the plastic substrate is sent into the enclosure area by the rock sealing platform, a solidifying material 42 is injected into the enclosure area to form a regular body 4. The side panels apply pressure to the side of the regular body to restore the state of the regular body embedded in the original rock wall and simulate the confining pressure state of the rock.
[0044] The tool abrasion performance testing unit 3 includes a tool assembly 30 and a tool loading device 31. The tool loading device can simulate the tool movement in the actual mining process to mine the rock in the regular body and realize accurate evaluation of the tool wear condition.
[0045] The above structure heats and softens the plastic substrate through a temperature-controlled heating clamp, and then fits it tightly to the surface of the irregular rock sample. This step effectively avoids the direct contact of the subsequently injected solidified material with the rock, reducing the potential impact on the rock structure caused by the material penetrating into the rock gaps; an adjustable-size enclosure area is formed by the molding platform and four independently movable side panels, and solidified material is injected into the enclosure area to form a regular body containing irregular rocks. This scheme successfully restores the state of the rock embedded in the original rock wall; the squeezing effect of the side panel on the entire regular body can simulate the high confining pressure environment of underground rocks, which is of great significance for accurately evaluating the wear of the tool under real mining conditions; the tool loading device can simulate the tool movement in the actual mining process, including key parameters such as the tool feed speed and cutting depth, thereby achieving accurate evaluation of the tool wear.
[0046] Since this solution can maintain the original structure of the rock and restore its state while simulating a real high confining pressure environment, it can more accurately reflect the wear of the tool during the actual mining process and improve the accuracy and reliability of the test. Compared with traditional methods that require cutting, grinding and other processing steps on the rock, it significantly simplifies the sample preparation process and reduces the risk of introducing errors in the sample preparation process, thereby significantly improving the accuracy of the tool wear test.
[0047] Through more accurate tool wear testing, companies can more accurately understand the performance of different tools under actual mining conditions. This helps companies choose the most suitable tool type and specifications according to specific mining needs, more reasonably plan the purchase quantity of tools, and help companies more accurately manage the tool life cycle. By optimizing tool selection, reasonably planning the purchase quantity, and accurately managing the use cycle, companies can use resources more efficiently, improve mining efficiency, and reduce production costs.
[0048] When selecting a solidifying material to simulate the mechanical properties of rock, it is necessary to perform strength tests on the rock in advance to ensure that the strength properties of the selected solidifying material match those of the rock. Use appropriate test methods (such as uniaxial compression test, Brazilian splitting test, etc.) to measure the compressive strength, tensile strength, etc. of the rock. Based on the results of the rock strength test, select a solidifying material with similar strength properties. For example, if the rock has a high compressive strength, a solidifying material with a high compressive strength should be selected.
[0049] Specific curing materials 42 such as epoxy resin can adjust their strength characteristics by adding different curing agents, fillers and modifiers; polyurethane is also a commonly used curing material with good strength and toughness. Gypsum can also be used as a curing material in some cases, especially when it is necessary to simulate softer rocks; cement-based materials: cement-based materials (such as concrete) can be used to simulate harder rocks, and their strength characteristics can be improved by adjusting the ratio of raw materials such as cement, sand, stone, and adding admixtures; polymer composite materials: polymer composite materials such as polyimide, polystyrene, etc. can also be used to simulate the mechanical properties of rocks. If necessary, laboratory tests can be used to verify whether the strength characteristics of the curing material are similar to those of the rock to be tested; the examples provided above are for reference only, and the specific selection should be made according to actual conditions.
[0050] See also Figure 1 , Figure 2 and Figure 3The rock sealing platform 11 is lifted and lowered at the center of the base 10. The rock sealing platform is provided with an exhaust hole 110. The base is provided with an exhaust channel 100. The exhaust channel is connected to a vacuum pumping device. The gap between the plastic substrate and the platform is vacuumed by the vacuum pumping device. The temperature-controlled heating clamp includes a first heating frame plate and a second heating frame plate. The plastic substrate is clamped between the two. The base is provided with a guide column. The first heating frame plate and the second heating frame plate can move linearly relative to the guide column 101. The above structure makes the heat-softened plastic substrate fit closely to the rock surface, avoids the generation of bubbles and gaps, and improves the bonding force between the plastic substrate and the rock. The plastic substrate better adapts to the complex shape and contour of the rock surface. When the plastic substrate fits closely to the rock surface, the liquid solidified material can perfectly adhere to the upper side of the plastic substrate outside the rock contour, restore and maintain the state of the rock embedded in the rock wall, and is suitable for rock samples of various shapes and sizes, which expands the application range of the test.
[0051] In order to ensure that the interlocking gap between the solidified material and the rock is very small, it is preferred to select a thin, degradable and fast-decomposing plastic substrate, such as polylactic acid (PLA), polyhydroxyalkanoate (PHA), polybutylene succinate (PBS), etc. The appropriate plastic substrate needs to be selected according to the specific application scenario and requirements of the test. For example, if the test needs to be carried out under high temperature or high pressure conditions, a plastic substrate with good heat resistance and pressure resistance needs to be selected.
[0052] See also Figure 4 , Figure 5 and Figure 8The molding platform 20 is mainly composed of a fixed angle plate 200 with an L-shaped cross section, a side plate 21, a cylinder 22 and a connecting assembly. The fixed angle plate can be fixed at the four corners of the molding platform, and the side plate is connected to the piston rod of the cylinder. The cylinder is firmly connected to the molding platform through the connecting assembly to ensure its stability and reliability. In the initial state, the cylinder is in an inactive state, and the side plate is flush with the fixed angle plate, and together they form an enclosure area with an opening on the lower side. A sealing ring can be set between the side plate and the angle plate to ensure the sealing effect. After the rock sealing platform 11 is lifted and brought into the enclosure area with the rock and the plastic substrate 41, a closed molding space is formed. The molding platform is connected to the conveying pipeline 201, and the conveying pipeline is connected to the curing material filling tank to inject curing material into the molding space. After a period of time, the curing material is completely cured, and the rock sealing platform descends. At the same time, the cylinder starts to move, and the piston rod pushes the side plate to move relative to the fixed angle plate. Since the initial side panels are flush with the fixed angle panels, there will be a certain misalignment between them after the movement, thereby changing the shape and size of the enclosed area. By adjusting the thrust and movement distance of the cylinder, the magnitude of the force exerted by the side panels on the regular bodies in the enclosed area can be controlled. This design has significant advantages in experiments simulating high confining pressure conditions of media such as rock or soil deep underground.
[0053] Furthermore, it is well known to those skilled in the art that the ambient temperature of rocks does have a significant impact on the properties of rocks. Rocks are solid aggregates formed by the combination of mineral particles through different geological processes (such as cooling, crystallization, compaction, cementation, etc.), and their properties (such as strength, hardness, toughness, permeability, etc.) are affected by many factors, among which ambient temperature is an important external factor.
[0054] In the fields of geological engineering, mining, oil and gas exploration, etc., understanding the changes in the properties of rocks at different temperatures is crucial to ensure engineering safety and improve mining efficiency. For example, in deep mining, as the mining depth increases, the ambient temperature of the rock will also increase, which may cause changes in the mechanical properties of the rock, thereby affecting the stability of the mine and mining efficiency. Therefore, when designing and implementing these projects, it is necessary to fully consider the temperature effect of the rock.
[0055] In this embodiment, the molding platform 20 is embedded with a temperature control system, which can heat or cool the regular body to simulate the temperature environment of the rock. For details, see Figure 8The temperature control system includes a heat pipe 23, which is protruding from the surface of the forming platform and can directly contact the regular body. A hot medium or a cold medium such as wind or liquid flows in the heat pipe. These media transfer heat by heating or cooling, thereby heating or cooling the regular body. Temperature sensors are provided on the side plates and the rock sealing platform, which are not shown in the figure. These sensors can measure the temperature of the regular body in real time. The temperature sensors send the measured temperature data to the controller to provide accurate temperature feedback for the controller. The controller controls and adjusts the heating or cooling power of the medium in the heat pipe according to the temperature signal provided by the temperature sensor, controls the temperature of the regular body, and thus simulates the rock state under different temperature environments, so that the tool wear test is closer to the actual working conditions, and the wear test results are more accurate and reliable, which helps to better evaluate the wear resistance and service life of the tool.
[0056] As a preferred embodiment of the present application, see Figure 6 A plurality of irregular rock samples 40 are embedded in the regular body 4 for synchronous testing, thereby improving the overall test efficiency and the comparability of the test results.
[0057] By embedding multiple irregular rock samples 40 into a regular body according to the solution of the present application, the tedious steps of repeatedly fixing the rock samples in each test can be avoided. This not only saves time, but also reduces the test errors caused by improper fixation. The multiple rock samples in the regular body maintain the same posture when embedded, which ensures that they have consistent temperature, surrounding pressure and other conditions during tool mining wear testing, thereby improving the comparability of the test results. It helps to more accurately analyze the wear performance of the tool under different conditions, such as tools at different angles, tools with feed speeds, tools under standard conditions, etc., and can simultaneously perform mining wear test experiments on rock samples at different positions in the regular body to improve the accuracy and efficiency of the test.
[0058] See also Figure 7 The rock sealing unit 1 and the tool abrasion performance test unit 3 are arranged on a platform 5, and the platform is provided with a guide rail 50. The rock sealing unit / tool abrasion performance test unit can move relative to the guide rail to correspond to the rock state restoration unit. The design of the guide rail enables the rock sealing unit and the tool abrasion performance test unit to move flexibly on the platform as needed without interfering with each other. This flexibility allows the tester to quickly adjust the position of the unit according to different test requirements to conduct tests corresponding to the rock state restoration unit. In addition, the tool abrasion performance test unit includes a tool assembly and a tool loading device, which is a prior art and can integrate multiple functions such as lifting, rotation, and linear movement to simulate the feeding action of different tools to meet different test requirements, which will not be repeated here.
[0059] As a preferred embodiment of the present application, the molding platform 20 can rotate to simulate the actual conditions of the rock at different inclination angles and orientations on the rock wall. Specifically, the rotation function of the molding platform enables the rock sample to simulate the actual conditions of the rock at different inclination angles and orientations on the rock wall. This helps to more comprehensively evaluate the abrasive performance of the tool at different angles and orientations, and the test conditions are closer to the actual working conditions, thereby improving the accuracy and reliability of the test.
[0060] Anything not described in the present invention can be achieved by adopting or drawing on existing technologies.
[0061] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A device for testing the abrasive performance of a mining tool, characterized in that: It includes rock sealing unit, rock state restoration unit and tool abrasive performance testing unit; The rock film sealing unit comprises a rock film sealing platform which can be lifted and lowered. A temperature-controlled heating clamp is arranged on the rock film sealing platform. The temperature-controlled heating clamp is used to heat and soften the plastic substrate. The irregular rock sample is placed in the center of the rock film sealing platform. The temperature-controlled heating clamp is pressed down to place the plastic substrate on the rock surface. The rock film sealing platform is lifted and lowered at the center of the base. The rock film sealing platform is provided with an air extraction hole. The base is provided with an air extraction channel. The air extraction channel is connected to a vacuum device. The vacuum device vacuums the gap between the plastic substrate and the rock film sealing platform so that the plastic substrate is closely attached to the rock surface. The rock state restoration unit includes a molding platform and four independently movable side panels to form an enclosure area with adjustable size. After the rock with plastic substrate is sent into the enclosure area by the rock sealing platform, a closed molding space is formed. Solidifying material is injected into the molding space. After a period of time, the solidifying material is completely solidified to form a regular body. The rock sealing platform descends, and the side panels apply pressure to the side of the regular body to restore its state of being embedded in the original rock wall and simulate the confining pressure state of the rock. Tool abrasion performance test unit, including tool assembly and tool loading device, the tool loading device can simulate the tool movement in the actual mining process to mine the rock in the regular body and realize the accurate evaluation of tool wear; The rock film sealing unit and the tool abrasion performance testing unit are arranged on a platform, and the platform is provided with a guide rail. The rock film sealing unit and the tool abrasion performance testing unit can move relative to the guide rail to correspond to the rock state restoration unit.
2. The abrasive performance testing device for mining tools according to claim 1 is characterized in that: The temperature-controlled heating clamp includes a first heating frame plate and a second heating frame plate, the plastic substrate is clamped between the two, and the base is provided with a guide column, and the first heating frame plate and the second heating frame plate can move linearly relative to the guide column.
3. The abrasive performance testing device for mining tools according to claim 1, characterized in that: The forming platform is provided with a fixed angle plate with an L-shaped cross-section, and the side plate is connected to the piston rod of the cylinder. The cylinder is fixedly connected to the forming platform through a connecting component, and the movement of the cylinder can make the side plate flush or staggered relative to the fixed angle plate.
4. The abrasive performance testing device for mining tools according to claim 1, characterized in that: The molding platform is connected to a delivery pipeline, and the delivery pipeline is connected to a solidification material filling tank.
5. The abrasive performance testing device for mining tools according to claim 1, characterized in that: The molding platform is embedded with a temperature control system, which can heat or cool the regular body to simulate the temperature environment of the rock.
6. The abrasive performance testing device for mining tools according to claim 5, characterized in that: The temperature control system includes a heat pipe, which is protruding from the forming platform. Hot medium or cold medium flows in the heat pipe to increase or decrease the temperature of the regular body. The side plates and the rock sealing platform are provided with temperature sensors to measure the temperature of the regular body in real time and send the data to the controller. The controller controls and adjusts the temperature according to the temperature signal.
7. The abrasive performance testing device for mining tools according to claim 1, characterized in that: The forming platform can rotate to simulate the actual conditions of rocks at different inclination angles and orientations on the rock wall.
8. The abrasive performance testing device for mining tools according to claim 1, characterized in that: A plurality of irregular rock samples are embedded in the regular body for synchronous testing, thereby improving the overall test efficiency and the comparability of the test results.
Citation Information
Patent Citations
Tunnel boring machine hob abrasion experiment device and method considering influence of ground stress field
CN115683909A
Confining pressure loading method for irregular-shaped rock sample
CN115728146A
Apparatus and method of manufacturing film coated component
JP2017065221A