Mechanical-hydraulic combined rock breaking test bed

Abstract

The utility model discloses a kind of mechanical-water combined rock breaking test benches, it is related to rock breaking test technical field, including collection pool, the movable platform is equipped in the collection pool, the movable platform both ends are slidably connected with the inner wall of collection pool by slide rail, the recess is opened in the top of movable platform, hot melt adhesive block is filled in the recess, the inside bottom end of the recess is inlaid with electric heating plate for heating hot melt adhesive block, the bottom end of movable platform is fixed with a plurality of heat dissipation fins for improving heat dissipation efficiency;The utility model is heated by hot melt adhesive block melting, then the bottom end of rock sample is immersed in molten hot melt adhesive block, then air-cooled component is used to air-cooled heat dissipation of hot melt adhesive block, after hot melt adhesive block solidification, rock sample is fixed at the top of movable platform, this fixing mode, even if the bottom end of rock sample is irregular, can be stably fixed at the top of movable platform, so that subsequent test is more smoothly.

Description

Technical Field

[0001] This utility model relates to the field of rock breaking test technology, specifically to a mechanical-hydraulic combined rock breaking test bench. Background Technology

[0002] Marl is a sedimentary rock composed of a mixture of argillaceous and calcareous materials. It is mainly composed of clay minerals (such as illite and montmorillonite) and carbonate minerals such as calcite and dolomite. It may also contain small amounts of detrital minerals such as quartz and feldspar, as well as organic matter. Marl often needs to be broken up during engineering construction and mining.

[0003] There are two common methods of rock breaking: one is that the equipment itself directly contacts the rock, using external force to squeeze and grind it; the other is to use high-pressure water flow to hydraulically cut the rock. With the iteration of rock breaking technology, existing integrated rock breaking equipment can now combine the two methods—usually, mechanical components first perform preliminary cracking of the rock to create a weak stress surface, and then high-pressure water flow penetrates deep into the cracks for secondary stripping, which improves rock breaking efficiency and reduces the energy consumption of equipment using a single method.

[0004] Before rock-breaking equipment is put into use, it must be tested to ensure that the equipment can operate more stably in actual work. During the test, the rock sample needs to be fixed on the test table, and then the rock-breaking equipment is used to break the rock sample. The rock breaking situation is observed and various data are recorded.

[0005] To ensure the authenticity of the experiment, it is best to use natural rocks. However, natural rocks are often irregular in shape due to the geological formation process, making it difficult for them to fit perfectly with the flat and fixed surface of the test platform. This insufficient fit can cause the sample to shift or shake during the rock breaking process, which not only affects the accuracy of the rock breaking path but also causes deviations in the collected data, thus affecting the accuracy of the experiment. Utility Model Content

[0006] The purpose of this invention is to provide a mechanical-hydraulic combined rock breaking test bench to overcome the shortcomings of the existing technology. It can use hot melt adhesive blocks to fix rock samples to the top of the moving platform. Even if the bottom of the rock sample is irregular, it can be stably fixed to the top of the moving platform, making subsequent tests smoother.

[0007] This utility model provides a mechanical-hydraulic combined rock breaking test bench, including a collection pool, a movable platform inside the collection pool, both ends of the movable platform being slidably connected to the inner wall of the collection pool via slide rails, and a groove being formed at the top of the movable platform, the groove being filled with hot melt adhesive blocks; An electric heating plate for heating the hot melt adhesive block is embedded in the bottom of the groove. Multiple heat sinks for improving heat dissipation efficiency are fixed at the bottom of the moving platform. Two air-cooling components for cooling the hot melt adhesive block are provided at the top of the moving platform, with the hot melt adhesive block located between the two air-cooling components.

[0008] Furthermore, the air-cooling component includes an air-cooling pipe, and an air guide pipe is fixedly provided at the top of the air-cooling pipe. One end of the air guide pipe can be connected to an air pump, thereby blowing high-speed airflow into the air guide pipe.

[0009] Furthermore, both ends of the air-cooling pipe are rotatably connected to brackets via damping bearings, and the brackets are detachably connected to the top of the moving platform. An exhaust duct is provided on the side of the air-cooling pipe facing the hot melt adhesive block.

[0010] Furthermore, the mobile platform is provided with a detachable mounting frame on the rear side, and a pressure plate is provided on the rear side of the mounting frame. A spring and a telescopic rod are provided between the mounting frame and the pressure plate. The spring is located on the outside of the telescopic rod, and the two ends of the spring and the telescopic rod are respectively fixedly connected to the mounting frame and the pressure plate.

[0011] Furthermore, an end plate is fixedly provided at the top rear side of the collection pool, a pressure sensor is provided at the front side of the end plate, and the rear side of the pressure plate is in contact with the pressure sensor.

[0012] Furthermore, a controller and a network module are fixedly installed on the exterior of the collection pool. The controller is connected to a computer via the network module for receiving and displaying various data. The pressure sensor is located at the input end of the controller, and the electric heating plate is located at the output end of the controller.

[0013] Furthermore, a filter plate is provided on the inner wall of the collection pool. The filter plate includes a mesh plate and a canvas layer on top of the mesh plate. A buffer layer is laid inside the collection pool on top of the canvas layer. The buffer layer is a layer of sand with a thickness greater than 30cm. A drain pipe is fixedly provided on the rear side of the collection pool. The drain pipe is located below the filter plate.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. By heating and melting the hot melt adhesive block, the bottom of the rock sample is immersed in the melted hot melt adhesive block. The hot melt adhesive block is then cooled by the air-cooling component. After the hot melt adhesive block solidifies, the rock sample is fixed on the top of the moving stage. This fixing method can stably fix the bottom of the rock sample on the top of the moving stage even if the bottom of the rock sample is irregular, making subsequent experiments smoother.

[0015] 2. By laying a buffer layer on top of the filter plate inside the collection tank, if the fragments fall down to the buffer layer during the test, the buffer layer can cushion the fragments and reduce the noise of the fragments falling, thereby reducing the noise during the test. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the internal structure of the collection pool of this utility model; Figure 3 This is a cross-sectional view of the filter plate of this utility model; Figure 4 This is an exploded view of the mobile station of this utility model; Figure 5 This is a structural diagram of the air-cooled component of this utility model; Figure 6 This is a structural diagram of the spring, telescopic rod, mounting bracket, and pressure plate of this utility model; Figure 7 This is a diagram showing the connection of electrical components for this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Collection pool; 2. Buffer layer; 3. Moving platform; 301. Hot melt adhesive block; 302. Electric heating plate; 303. Heat sink; 304. Groove; 4. Controller; 5. Network module; 6. Air-cooled assembly; 601. Air-cooling pipe; 602. Bracket; 603. Exhaust duct; 604. Air guide duct; 7. Spring; 701. Mounting bracket; 702. Pressure plate; 703. Telescopic rod; 8. End plate; 801. Pressure sensor; 9. Filter plate; 901. Mesh plate; 902. Canvas layer. Detailed Implementation

[0018] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] This utility model provides, for example Figures 1-7 The mechanical-hydraulic combined rock breaking test bench shown includes a collection pool 1, a movable platform 3 is provided inside the collection pool 1, both ends of the movable platform 3 are slidably connected to the inner wall of the collection pool 1 by slide rails, and a groove 304 is provided at the top of the movable platform 3, the groove 304 is filled with hot melt adhesive block 301. An electric heating plate 302 for heating the hot melt adhesive block 301 is embedded in the bottom of the groove 304. Multiple heat sinks 303 are fixedly provided at the bottom of the moving platform 3. The heat sinks 303 increase the heat dissipation area, thereby improving the heat dissipation efficiency. Two air-cooling components 6 for cooling the hot melt adhesive block 301 are provided at the top of the moving platform 3. The hot melt adhesive block 301 is located between the two air-cooling components 6. If a piece falls on the top of the hot melt adhesive block 301 during the test and damages the hot melt adhesive block 301, the hot melt adhesive block 301 can repair the damaged part itself after being heated and softened. Therefore, the piece will not have a real impact on the hot melt adhesive block 301.

[0020] Before the experiment begins, the electric heating plate 302 is first energized to heat the hot melt adhesive block 301. The hot melt adhesive block 301 softens at 70-80℃, and the higher the temperature, the faster it softens, eventually melting into a viscous fluid state. Therefore, after the hot melt adhesive block 301 is heated and melted, the collected rock sample is lifted by a large hoisting device and placed on the top of the moving platform 3, so that the bottom of the rock sample enters the groove 304 and is immersed in the melted hot melt adhesive block 301. The rock sample can also be adjusted appropriately during this process. The orientation and position of the rock sample are determined for subsequent experiments. Heating is then stopped, and the molten hot melt adhesive block 301 is cooled by air cooling component 6. Cooling water can also be sprayed onto the heat sink 303 at the bottom of the moving stage 3. The hot melt adhesive block 301 is cooled down quickly by the above methods. After cooling, the hot melt adhesive block 301 gradually solidifies and adheres and fixes the rock sample to the top of the moving stage 3. This fixing method can stably fix the rock sample to the top of the moving stage 3 even if the bottom of the rock sample is irregular, making subsequent experiments smoother.

[0021] Specifically, such as Figure 4 , Figure 5 As shown, the air-cooled component 6 includes an air-cooled pipe 601, and an air guide pipe 604 is fixedly provided at the top end of the air-cooled pipe 601. One end of the air guide pipe 604 can be connected to an air pump, thereby blowing high-speed airflow into the air guide pipe 604.

[0022] Both ends of the air-cooled pipe 601 are rotatably connected to the bracket 602 via damping bearings. The bracket 602 is detachably connected to the top of the moving platform 3. An exhaust groove 603 is provided on the side of the air-cooled pipe 601 facing the hot melt adhesive block 301. By rotating the air-cooled pipe 601 relative to the bracket 602, the orientation of the exhaust groove 603 can be adjusted, thereby adjusting the direction of air blowing.

[0023] After the rock sample is placed on the top of the moving stage 3 and comes into full contact with the softened hot melt adhesive block 301, a high-speed airflow can be injected into the air duct 604. The airflow enters the air-cooling pipe 601 along the air duct 604 and is finally blown out from the exhaust duct 603, thereby generating wind that blows towards the hot melt adhesive block 301. The high-speed airflow quickly removes heat, thereby accelerating the solidification of the hot melt adhesive block 301 and improving the test efficiency.

[0024] During the experiment, the stress conditions of the rock samples were tested, such as... Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the movable platform 3 is provided with a detachable mounting bracket 701 on the rear side, and a pressure plate 702 is provided on the rear side of the mounting bracket 701. A spring 7 and a telescopic rod 703 are provided between the mounting bracket 701 and the pressure plate 702. The spring 7 is located on the outside of the telescopic rod 703, and the telescopic rod 703 can ensure that the spring 7 extends and retracts in a straight line. The two ends of the spring 7 and the telescopic rod 703 are fixedly connected to the mounting bracket 701 and the pressure plate 702, respectively.

[0025] An end plate 8 is fixedly provided at the top rear side of the collection pool 1, and a pressure sensor 801 is provided at the front side of the end plate 8. The rear side of the pressure plate 702 is in contact with the pressure sensor 801.

[0026] During the experiment, the rock sample was fixed on the moving platform 3. The rock-breaking device was in front of the rock sample and mechanically and hydraulically broke the sample from front to back. During the operation of the rock-breaking device, a force was applied to the rock sample from front to back. The force caused the rock sample and the moving platform 3 to slide backward and drive the mounting frame 701 to move backward. The mounting frame 701 squeezed the spring 7. After the spring 7 was compressed, the elastic force of the spring 7 pushed the pressure plate 702 backward, clamping the pressure sensor 801 between the end plate 8 and the pressure plate 702. The pressure sensor 801 sensed the force on the rock sample during the experiment, providing a reference for the experiment. In addition, the elasticity of the spring 7 could also play a buffering role, avoiding excessive squeezing force that could damage the rock-breaking device or cause the rock sample to fall off.

[0027] In order to remotely transmit monitoring and control of the test bench, such as Figure 1 , Figure 7 As shown, a controller 4 and a network module 5 are fixedly installed on the exterior of the collection pool 1. The controller 4 is connected to a computer via the network module 5 for receiving and displaying various data. The pressure sensor 801 is located at the input end of the controller 4, and the electric heating plate 302 is located at the output end of the controller 4. During the test, the pressure data sensed by the pressure sensor 801 is processed by the controller 4 and then remotely transmitted to the computer for display. The computer can also remotely control the electric heating plate 302 via the controller 4.

[0028] After fragments fall during the experiment, they need to be cushioned, such as... Figure 2 , Figure 3 As shown, a filter plate 9 is provided on the inner wall of the collection pool 1. The filter plate 9 includes a mesh plate 901 and a canvas layer 902 on top of the mesh plate 901. A buffer layer 2 is laid inside the collection pool 1, which is a layer of sand with a thickness of more than 30cm. A drain pipe is fixedly provided on the rear side of the collection pool 1. The drain pipe is located below the filter plate 9. The mesh plate 901 can support the buffer layer 2, and the canvas layer 902 can filter out water.

[0029] During the experiment, the rock sample will be gradually crushed by the mechanical force and hydraulic force of the rock crushing equipment. During the crushing process, fragments will continuously fall down into the collection pool 1 and land on the buffer layer 2. The buffer layer 2 is relatively soft and has a buffering effect, which prevents the impact of the falling fragments from affecting the test platform. In addition, based on life experience, it is known that the fragments falling on the buffer layer 2 will not produce much noise, thus reducing the noise during the experiment. The water ejected during the hydraulic rock breaking process also flows downward into the collection pool 1. The water falling into the collection pool 1 can penetrate the buffer layer 2 and be filtered by the mesh plate 901 and the canvas layer 902 before finally reaching the bottom of the collection pool 1 and being discharged through the drain pipe, thus being recycled.

[0030] The basic principles of this utility model have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this utility model are merely examples and not limitations, and should not be considered as essential features of each embodiment of this utility model. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the utility model from being implemented using the aforementioned specific details.

[0031] The block diagrams of the devices, apparatuses, equipment, and systems involved in this utility model are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0032] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0033] It should also be noted that in the system and method of this utility model, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this utility model.

[0034] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this utility model is not limited to the specific aspects of the processes, machines, manufacturing processes, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufacturing processes, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufacturing processes, events, means, methods, or actions within their scope.

[0035] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0036] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A mechanical-hydraulic combined rock breaking test stand, comprising a collecting pool (1), characterized in that: The collection pool (1) is provided with a moving platform (3), both ends of which are slidably connected to the inner wall of the collection pool (1). The top of the moving platform (3) is provided with a groove (304), and the groove (304) is filled with hot melt adhesive block (301). The bottom of the groove (304) is inlaid with an electric heating plate (302) for heating the hot melt adhesive block (301). The bottom of the moving platform (3) is fixed with a plurality of heat sinks (303) for improving heat dissipation efficiency. The top of the moving platform (3) is provided with two air-cooling components (6) for cooling the hot melt adhesive block (301).

2. The mechanical-hydraulic combined rock breaking test bench according to claim 1, characterized in that: The air-cooled assembly (6) includes an air-cooled pipe (601), and an air duct (604) is fixedly provided at the top end of the air-cooled pipe (601).

3. The mechanical-hydraulic combined rock-breaking test bench according to claim 2, characterized in that: Both ends of the air-cooled pipe (601) are rotatably connected to brackets (602), the brackets (602) are connected to the top of the moving platform (3), and the air-cooled pipe (601) has an exhaust groove (603) on the side facing the hot melt adhesive block (301).

4. The mechanical-hydraulic combined rock breaking test bed according to claim 1, characterized in that: The mobile platform (3) is provided with a mounting bracket (701) on the rear side, and a pressure plate (702) is provided on the rear side of the mounting bracket (701). A spring (7) and a telescopic rod (703) are provided between the mounting bracket (701) and the pressure plate (702).

5. The mechanical-hydraulic combined rock breaking test bench according to claim 4, characterized in that: The collection pool (1) is fixedly provided with an end plate (8) at the top rear side, and a pressure sensor (801) is provided on the front side of the end plate (8). The pressure plate (702) is in contact with the pressure sensor (801) at the rear side.

6. The mechanical-hydraulic combined rock breaking test rig according to claim 1, characterized in that: The collection pool (1) is fixedly equipped with a controller (4) and a network module (5) on its exterior surface. The controller (4) is connected to a computer through the network module (5).

7. The mechanical-hydraulic combined rock breaking test bed according to claim 6, characterized in that: The inner wall of the collection pool (1) is provided with a filter plate (9), the filter plate (9) includes a mesh plate (901) and a canvas layer (902) at the top of the mesh plate (901). The inside of the collection pool (1) is covered with a buffer layer (2) at the top of the canvas layer (902). A drain pipe is fixedly provided on the rear side of the collection pool (1).

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