Composite impact rock breaking experiment device

Abstract

The invention provides a composite impact rock breaking experiment device and relates to the technical field of oil and gas drilling impact rock breaking experiment device.A base in the composite impact rock breaking experiment device is provided with an installation position, a to-be-broken rock sample is installed at the installation position, and a support is arranged on the base and fixedly connected with the base; the impact mechanism is arranged above the mounting position and movably connected with the support, the power mechanism drives the impact mechanism to reciprocate in the first direction, an impact portion is arranged at the end, facing the mounting position, of the impact mechanism, and when the impact mechanism reciprocates in the first direction, the impact portion intermittently impacts a rock sample on the mounting position. The load assembly provides an impact load to the impact mechanism in at least one of a first direction and a second direction. Impact load is provided for the composite impact rock breaking experimental device through the load assembly, the impact mechanism is assisted in impacting a rock sample, experimental theoretical guidance is provided for the actual rock breaking process, and a better rock breaking effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of oil and gas drilling impact rock breaking experimental devices, and in particular to a composite impact rock breaking experimental device. Background Art

[0002] As the exploration and development of oil and gas resources move towards deep and ultra-deep layers, higher requirements are placed on drilling speed-up technology. However, the high hardness, strong abrasiveness, and interlaced soft and hard rock characteristics of deep formations pose huge challenges to safe and efficient drilling.

[0003] In the relevant technology, the conventional drilling method that relies on the static pressure applied by the drill string to break the formation rock only involves axial impact drilling, torsional impact drilling and axial-torsion composite impact drilling in the process of rock breaking in deep formations. In the field of corresponding experimental equipment, it involves rock breaking equipment corresponding to the actual rock breaking method to obtain rock breaking experimental data and provide theoretical guidance for the actual rock breaking process.

[0004] Therefore, in the related art, the rock breaking experimental device has the technical problem of not considering the auxiliary rock breaking of the additional impact load and lacks corresponding experimental theoretical guidance. Therefore, it is necessary to provide a composite impact rock breaking experimental device. Summary of the Invention

[0005] The present application provides a composite impact rock breaking experimental device, which aims to solve the technical problem that the rock breaking experimental device does not consider the auxiliary rock breaking of additional impact loads, so as to increase the experiment of impact load-assisted rock breaking, provide experimental theoretical guidance for the actual rock breaking process, and achieve better rock breaking effect.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The present invention provides a composite impact rock breaking experimental device, comprising:

[0008] A base having a mounting position configured to mount a rock sample to be broken;

[0009] a bracket, disposed on the base and fixedly connected to the base;

[0010] An impact mechanism and a power mechanism, wherein the impact mechanism is disposed above the mounting position and movably connected to the bracket, the power mechanism being configured to drive the impact mechanism to reciprocate in a first direction, the impact mechanism having an impact portion at one end facing the mounting position, and the impact portion being configured to intermittently impact the rock sample on the mounting position when the impact mechanism reciprocates in the first direction;

[0011] A load assembly is configured to provide an impact load to the impact mechanism along at least one of the first direction and a second direction; wherein the first direction and the second direction are perpendicular to each other.

[0012] In some embodiments, the load assembly is movably disposed on the impact mechanism, and the load assembly is configured to be movable relative to the impact mechanism in at least one of a first direction and a second direction to provide the impact load to the impact mechanism.

[0013] In some embodiments, the load assembly includes a first load member and a second load member, wherein the first load member and the second load member are movably disposed on the impact mechanism;

[0014] The first load member is movable relative to the impact mechanism in the first direction to provide the impact mechanism with a first impact load along the first direction;

[0015] The second load member is movable relative to the impact mechanism in the second direction to provide a second impact load along the second direction to the impact mechanism.

[0016] In some embodiments, the composite impact rock breaking experimental device further includes a first driving mechanism and a second driving mechanism;

[0017] The impact mechanism comprises a first cavity extending along the first direction and a second cavity extending along the second direction, the first load member is disposed in the first cavity, the dimension of the first cavity in the first direction is larger than the dimension of the first load member in the first direction, and the second load member is disposed in the second cavity, the dimension of the second cavity in the second direction is larger than the dimension of the second load member in the second direction;

[0018] The first driving mechanism is configured to drive the first load member to reciprocate along the first direction in the first cavity, and the second driving mechanism is configured to drive the second load member to reciprocate along the second direction in the second cavity.

[0019] In some embodiments, the first driving mechanism includes a first fluid driving member, a first control valve, and two first fluid pipelines. One end of the first fluid driving member is connected to a fluid source, and the other end is connected to an input end of the first control valve. The first control valve has two first output ends, and the input end of the control valve can be selectively connected to one of the two first delivery ends.

[0020] The two first fluid pipelines are respectively connected to the two first output ends, one first fluid pipeline corresponds to one first output end, the two first fluid pipelines pass through the cavity wall of the first cavity and are connected to the first cavity, the two first fluid pipelines are arranged at intervals along the first direction on the cavity wall of the first cavity, and the fluid with a certain pressure is periodically transported to the first cavity through the two first fluid pipelines to drive the first load member to reciprocate along the first direction in the first cavity.

[0021] In some embodiments, the second driving mechanism includes a second fluid driving member, a second control valve, and two second fluid pipelines. One end of the second fluid driving member is connected to a fluid source, and the other end is connected to an input end of the second control valve. The second control valve has two second output ends, and the input end of the control valve can be selectively connected to one of the two second delivery ends.

[0022] The two second fluid pipelines are respectively connected to the two second output ends, one second fluid pipeline corresponds to one second output end, the two second fluid pipelines pass through the cavity wall of the second cavity and are connected to the second cavity, and the two second fluid pipelines are relatively arranged on opposite sides of the second cavity. Fluid with a certain pressure is periodically transported to the second cavity through the two second fluid pipelines to drive the second load member to reciprocate along the second direction in the second cavity.

[0023] In some embodiments, the composite impact rock breaking experimental device also includes a first information collection component and a second information collection component, the first information collection component is respectively connected to the two first fluid pipelines to collect at least one of the flow rate and pressure of the fluid in the first fluid pipeline, and the second information collection component is respectively connected to the two second fluid pipelines to collect at least one of the flow rate and pressure of the fluid in the second fluid pipeline.

[0024] In some embodiments, the impact portion has a drill tooth on a side facing the mounting position, and an inclined angle is formed between the drill tooth and the second direction, and the inclined angle is 0°-30°.

[0025] In some embodiments, the impact portion has one or more drill teeth. When the impact portion has multiple drill teeth, the multiple drill teeth are arranged at intervals along at least one of the second direction and the third direction; wherein the third direction has an angle with the second direction.

[0026] In some embodiments, the bracket further has a guide column extending along the first direction, the impact mechanism is configured to be slidably connected to the guide column, and the impact mechanism is configured to slide along the guide column under the action of a force.

[0027] In some embodiments, the impact mechanism further includes a nozzle, the spray port of the nozzle faces the installation position, and the spray direction of the nozzle has an inclined angle with the first direction.

[0028] In some embodiments, the composite impact rock breaking experimental device further includes a pressure component, which is disposed around the rock sample and moves toward or away from the rock sample under the action of force, and the pressure component is configured to apply or release pressure to the rock sample.

[0029] In some embodiments, the pressure assembly includes a first pressure member, a second pressure member, a third pressure member, and a fourth pressure member, wherein the first pressure member, the second pressure member, the third pressure member, and the fourth pressure member are collectively arranged to form an accommodating space, and the rock sample is located in the accommodating space;

[0030] The first pressure member and the third pressure member are arranged relative to each other, and the first pressure member and the third pressure member can move toward or away from each other; the second pressure member and the fourth pressure member are arranged relative to each other, and the second pressure member and the fourth pressure member can move toward or away from each other.

[0031] In some embodiments, the base includes a body and a mounting platform, the mounting platform is movably disposed on the body, and the mounting platform can move relative to the body along at least one of the first direction, the second direction, and the third direction under the action of a force.

[0032] In some embodiments, the composite impact rock breaking experimental device also includes a first load detection member and a second load detection member, and the bracket also has a first bearing platform and a second bearing platform, the first bearing platform and the second bearing platform are penetrated by the impact mechanism and are arranged at intervals along the first direction, the first load detection member is arranged between the first bearing platform and the second bearing platform, and is configured to detect the axial impact force received by the impact part, and the second load detection member is arranged on the mounting position, and is configured to detect the tangential impact force received by the impact part.

[0033] In some embodiments, the composite impact rock breaking experimental device also includes a control collector, which is electrically connected to the first load detection component, the second load detection component, the first fluid drive component, the first control valve, the first information acquisition component, the second fluid drive component, the second control valve, and the second information acquisition component respectively. The control collector is configured to collect information detected by the first load detection component, the second load detection component, the first information acquisition component, and the second information acquisition component, and control the start and stop of the first fluid drive component, the first control valve, the second fluid drive component, and the second control valve according to the collected information.

[0034] The composite impact rock breaking experimental device provided in an embodiment of the present application includes a base, a bracket, an impact mechanism, a power mechanism and a load assembly. The base has a mounting position, and the mounting position is configured to install a rock sample to be broken. The bracket is arranged on the base and fixedly connected to the base. The impact mechanism is arranged above the mounting position and movably connected to the bracket. The power mechanism is configured to drive the impact mechanism to reciprocate along a first direction. The impact mechanism has an impact part at one end facing the mounting position. When the impact mechanism reciprocates along the first direction, the impact part is configured to intermittently impact the rock sample on the mounting position. The load assembly is configured to provide the impact mechanism with an impact load along at least one of the first direction and the second direction. The composite impact rock breaking experimental device of the present application provides the composite impact rock breaking experimental device with an impact load through the load assembly to assist the impact mechanism in impacting the rock sample, thereby providing experimental theoretical guidance for the actual rock breaking process to achieve better rock breaking effect.

[0035] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the battery pack disassembly and assembly equipment provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 A schematic diagram of the structure of the composite impact rock breaking experimental device provided in an embodiment of the present application from one perspective;

[0038] Figure 2A schematic structural diagram of the composite impact rock breaking experimental device provided in the application embodiment from another perspective;

[0039] Figure 3 for Figure 2 A structural schematic diagram cut at AA in FIG;

[0040] Figure 4 A schematic diagram of an installation angle structure of a drill tooth provided in an embodiment of the present application;

[0041] Figure 5 A schematic diagram of an installation structure of a single drill tooth provided in an embodiment of the present application;

[0042] Figure 6 A schematic diagram of an installation structure of two drill teeth provided in an embodiment of the present application;

[0043] Figure 7 A schematic diagram of an installation structure of three drill teeth provided in an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 10-Compound impact rock breaking experimental device;

[0046] 100-base; 110-body; 120-mounting table; 130-rock sample;

[0047] 200- bracket; 210- guide column;

[0048] 300-impact mechanism; 310-nozzle; 320-drill teeth;

[0049] 400-power mechanism;

[0050] 500-load assembly; 510-first load member; 511-stress notch; 520-second load member;

[0051] 530 - first driving mechanism; 531 - first fluid driving component; 532 - first control valve; 533 - first information collecting component;

[0052] 540 - second driving mechanism; 541 - second fluid driving element; 542 - second control valve; 543 - second information collecting element;

[0053] 600-pressure assembly; 610-first pressure member; 620-second pressure member; 630-third pressure member; 640-fourth pressure member;

[0054] 700 - first load detection component; 710 - second load detection component; 720 - control collector. DETAILED DESCRIPTION

[0055] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0056] As the exploration and development of oil and gas resources advances towards deep and ultra-deep layers on the surface, the high hardness, strong abrasiveness, and alternating soft and hard properties of deep rock formations pose challenges to oil and gas exploration. Percussion drilling technology is used in the process of oil and gas exploration. Percussion drilling technology is a drilling technology for deep and ultra-deep layers on the surface. In the actual process of oil and gas exploration drilling, the drill bit operates through axial and rotational motion driven by the percussion drilling device. The operation process involves axial percussion drilling, torsional percussion drilling, and axial-torsion composite percussion drilling.

[0057] However, in the related technologies of experimental devices for impact rock breaking, the auxiliary rock breaking effect of additional impact loads is not considered, and therefore, there is a lack of corresponding experimental theoretical guidance.

[0058] In order to overcome the defects in the relevant technology, the embodiment of the present application adds a load component to the composite impact rock breaking experimental device to provide an impact load-assisted impact mechanism to impact the rock sample, providing experimental theoretical guidance for the actual rock breaking process to achieve better rock breaking effect.

[0059] The contents of this application will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the contents of this application more clearly and in detail.

[0060] Combine Figure 1 、 Figure 2 and Figure 3As shown, the composite rock breaking experimental device 10 includes a base 100, a bracket 200, an impact mechanism 300, a power mechanism 400 and a load assembly 500, wherein the base 100 has a mounting position, the mounting position is configured to mount the rock sample 130 to be broken, the bracket 200 is arranged on the base 100 and is fixedly connected to the base 100, the impact mechanism 300 is arranged above the mounting position and is movably connected to the bracket 200, the power mechanism 400 is configured to drive the impact mechanism 300 to reciprocate along a first direction, and the impact mechanism 300 faces one side of the mounting position. The end of the impact mechanism 300 has an impact part. When the impact mechanism 300 reciprocates along the first direction, the impact part is configured to intermittently impact the rock sample 130 on the mounting position. The load assembly 500 is configured to provide an impact load along at least one of the first direction and the second direction to the impact mechanism 300. By arranging the load assembly 500 in the composite impact rock breaking experimental device 10, an impact load is provided to the impact mechanism 300, thereby assisting the impact mechanism in impacting the rock sample 130, providing experimental theoretical guidance for the actual rock breaking process, and achieving a faster and simpler rock breaking effect.

[0061] In some embodiments, the shape of the impact mechanism 300 includes but is not limited to a square shaft, a round shaft, an elliptical shaft, a polygonal shaft, etc. Figure 1 、 Figure 2 and Figure 3 As shown, one end of the impact mechanism 300 axis faces the installation position, and the other end faces away from the installation position. The axial direction of the impact mechanism 300 is the first direction, and the direction perpendicular to the axial direction of the impact mechanism 300 is the second direction.

[0062] In some embodiments, the shape of the bracket 200 includes but is not limited to a columnar shape, a lath shape, etc., and a certain number of brackets 200 can be taken, which are arranged axially along the first direction, one end is fixedly connected to the base 100, and the fixed connection method includes but is not limited to welding, threaded bolt connection, flange connection, etc., and the other end is movably connected to the impact mechanism 300. For example, Figure 1 As shown, four square columnar brackets 200 are respectively arranged on both sides of the base 100, and the brackets 200 and the base 100 are fixedly connected by threaded bolts, which is convenient for disassembly and installation of the equipment, so as to maintain the equipment more efficiently. In order to facilitate the fixed connection between the bracket 200 and the base 100, a boss is provided at the end of the bracket 200, and the boss bracket 200 is connected to the base 100 by threaded bolts of the boss, and a reinforcing rib plate is supported between the bracket 200 and the boss to strengthen the connection between the bracket 200 and the boss.

[0063] In some embodiments, the composite rock breaking device 10 further includes an upper platform, and the other end of the bracket 200 is fixedly connected to the upper platform. The fixed connection method includes but is not limited to welding, threaded bolt connection, flange connection, etc. For example, Figure 1As shown, the bracket 200 and the platform are fixedly connected by threaded bolts, which facilitates the disassembly and installation of the equipment and allows for more efficient maintenance of the equipment.

[0064] In some embodiments, as Figure 1 and Figure 3 As shown, the power mechanism 400 can be a hydraulic control mechanism, which includes a hydraulic rod, a hydraulic cylinder and a hydraulic control device. The hydraulic control device includes a hydraulic pump, a hydraulic control valve and a pressure gauge, etc. The hydraulic cylinder is fixedly arranged on the upper end platform connected to the bracket 200, and the hydraulic rod is passed through the platform and fixedly connected to the impact mechanism 300. Under the control of the corresponding hydraulic control system, the impact mechanism 300 can reciprocate relative to the rock sample 130 in the first direction. Therefore, by controlling the hydraulic control system, the impact mechanism can be adjusted to drive the impact part to impact the rock sample in a manner such as a constant impact depth or a constant impact force, so as to obtain experimental data of the impact mechanism performing impact under different impact modes.

[0065] In some embodiments, in order to ensure that the impact mechanism 300 is subjected to force balance under the drive of the power mechanism 400, multiple hydraulic cylinders and hydraulic rods can be used in the impact mechanism 300, and are evenly arranged around the impact mechanism 300, wherein the hydraulic cylinders are evenly fixed on the upper end platform connected to the bracket 200.

[0066] In some embodiments, for example, the load assembly 500 is configured to provide the impact mechanism 300 with an impact load only along the first direction, that is, the load assembly 500 can provide the impact mechanism 300 with an impact stress only along its axial direction, thereby assisting the impact mechanism in impacting the rock sample 130, and providing experimental theoretical guidance for an actual rock breaking process with only the auxiliary impact load along the first direction; the load assembly 500 is configured to provide the impact mechanism 300 with an impact load only along the second direction, that is, the load assembly 500 can provide the impact mechanism 300 with an impact stress only along its radial direction, thereby assisting the impact mechanism in impacting the rock sample 130, and providing experimental theoretical guidance for an actual rock breaking process with only the auxiliary impact load along the second direction; the load assembly 500 is configured to provide the impact mechanism 300 with an impact load along the first direction and the second direction, that is, the load assembly 500 can provide the impact mechanism 300 with an impact stress along its axial direction and an impact stress along its radial direction, thereby assisting the impact mechanism in impacting the rock sample 130, and providing experimental theoretical guidance for an actual rock breaking process with both the auxiliary impact load along the first direction and the auxiliary impact load along the second direction.

[0067] like Figure 2 and 3As shown, the load assembly 500 is movably arranged on the impact mechanism 300. The load assembly 500 is configured to move relative to the impact mechanism 300 in at least one of a first direction and a second direction to provide an impact load to the impact mechanism 300. The impact load assists the impact mechanism 300 in impacting the rock sample 130, providing experimental theoretical guidance for the actual rock breaking process to achieve a better rock breaking effect.

[0068] In some embodiments, for example, Figure 3 As shown, the load assembly 500 can only move in the first direction relative to the impact mechanism 300 to provide an impact load along the first direction to the impact mechanism 300, so as to assist the impact mechanism 300 in impacting the rock sample 130, thereby providing experimental theoretical guidance for the actual rock breaking process with only the auxiliary impact load along the first direction; the load assembly 500 can only move in the second direction relative to the impact mechanism 300 to provide an impact load along the second direction to the impact mechanism 300, so as to assist the impact mechanism 300 in impacting the rock sample 130, thereby providing experimental theoretical guidance for the actual rock breaking process with only the auxiliary impact load along the second direction; the load assembly 500 can move both in the first direction and in the second direction relative to the impact mechanism 300, thereby providing the impact load along the first direction and the impact load along the second direction to the impact mechanism 300, thereby assisting the impact mechanism 300 in impacting the rock sample 130, thereby providing experimental theoretical guidance for the actual rock breaking process with both the auxiliary impact load along the first direction and the auxiliary impact load along the second direction.

[0069] like Figure 3 As shown, the load assembly 500 includes a first load member 510, which is movably disposed on the impact mechanism 300 and can move in a first direction relative to the impact mechanism 300 to provide a first impact load along the first direction to the impact mechanism 300, so as to assist the impact mechanism in impacting the rock sample and improve the rock breaking effect.

[0070] like Figure 1 river Figure 3 As shown, the composite rock breaking experimental device 10 includes a first driving mechanism 530, the impact mechanism 300 has a first cavity extending along a first direction, the first load member 510 is arranged in the first cavity, the size of the first cavity in the first direction is larger than the size of the first load member 510 in the first direction, and the first driving mechanism 530 drives the first load member 510 to reciprocate along the first direction in the first cavity, so that the impact mechanism 300 has a first impact load along the first direction.

[0071] like Figure 1 and Figure 3As shown, the first driving mechanism 530 includes a first fluid driving member 531, a first control valve 532, and two first fluid pipelines. One end of the first fluid driving member 531 is connected to a fluid source, and the other end is connected to an input end of the first control valve 532. The first control valve 532 has two first output ends, and the input end of the control valve can selectively be connected to one of the two first delivery ends. The two first fluid pipelines are respectively connected to the two first output ends, with one first fluid pipeline corresponding to each first output end. The two first fluid pipelines penetrate the cavity wall of the first cavity and are connected to the first cavity. The two first fluid pipelines are spaced apart along the cavity wall of the first cavity along the first direction. Fluid with a certain pressure is periodically delivered to the first cavity through the two first fluid pipelines to drive the first load member 510 to reciprocate in the first direction in the first cavity, thereby providing a first impact load with a certain frequency along the first direction to the impact mechanism 300.

[0072] In some embodiments, the first fluid driving member 531 provides pressure for the fluid flowing through the first driving mechanism 530. The fluid flowing through the first driving mechanism 530 can be one of gas or liquid. If the fluid is gas, the first fluid driving member 531 connected to the fluid source can be a fan. The fan types include but are not limited to axial flow fans, centrifugal fans, mixed flow fans, etc. If the fluid is liquid, the first fluid driving member 531 connected to the fluid source can be a pump. The pump types include but are not limited to fixed frequency pumps, variable frequency pumps, etc. The first control valve 532 can be an electromagnetic reversing valve in the electromagnetic control valve, which is convenient for controlling the fluid to periodically enter the two first fluid pipelines respectively, so as to drive the first load member 510 to reciprocate along the first direction in the first cavity.

[0073] like Figure 3 As shown, stress-bearing notches 511 are provided at both ends of the first load member 510 facing the two first fluid pipelines respectively. When the stress-bearing notches 511 are subjected to impact force, the first load member 510 moves along the first direction.

[0074] In some embodiments, the first fluid driving member 531 drives the fluid to flow out from the fluid source, pass through the first control valve 532, so that the fluid periodically enters the two first fluid pipelines respectively to impact the force-bearing notches 511 at both ends of the first load member 510 respectively. When the force-bearing notches 511 at both ends of the first load member 510 are respectively subjected to impact forces, the first load member 510 reciprocates along the first direction, thereby generating a first impact load with a certain frequency to assist the impact mechanism in impacting the rock sample and improve the rock breaking effect.

[0075] like Figure 1As shown, the composite rock breaking experimental device 10 further includes a first information collecting component 533 , which is connected to the two first fluid pipelines respectively to collect at least one of the flow rate and pressure of the fluid in the first fluid pipelines.

[0076] In some embodiments, the first information acquisition component 533 is used to collect at least one of the flow rate and pressure of the fluid in the first fluid pipeline, so as to control the fluid in the first fluid pipeline, thereby controlling the first impact load, wherein the fluid flow acquisition component in the first information acquisition component 533 includes but is not limited to an orifice flowmeter, a vortex flowmeter, an ultrasonic flowmeter, a mass flowmeter, a turbine flowmeter, etc., and the pressure acquisition component in the first information acquisition component 533 includes but is not limited to a pressure sensor, a pressure gauge, a differential pressure transmitter, etc.

[0077] like Figure 3 As shown, the load assembly 500 also includes a second load member 520, which is movably disposed on the impact mechanism 300 and can move in a second direction relative to the impact mechanism 300 to provide a second impact load along the second direction to the impact mechanism 300, so as to assist the impact mechanism in impacting the rock sample 130 and enhance the rock breaking effect.

[0078] Of course, in some embodiments, the first load member 510 and the second load member 520 in the load assembly 500 can act on the impact mechanism 300 separately to provide the impact mechanism 300 with a first impact load along the first direction or a second impact load along the second direction. In addition, the first load member 510 and the second load member 520 act on the impact mechanism 300 together to provide the impact mechanism 300 with a first impact load along the first direction and a second impact load along the second direction. Therefore, the composite impact rock breaking experimental device can provide an impact load having the first impact load or the second impact load, as well as a composite impact load of the first impact load and the second impact load, so as to enrich the experiment of the impact mechanism 300 impacting the rock sample 130, make the experimental data more comprehensive, and provide theoretical data for the corresponding actual rock breaking process, thereby improving the rock breaking effect in the actual rock breaking process.

[0079] like Figure 1 and Figure 3 As shown, the composite rock breaking experimental device 10 also includes a second driving mechanism 540, the impact mechanism 300 has a second cavity extending along the second direction, the second load member 520 is arranged in the second cavity, the size of the second cavity in the second direction is larger than the size of the second load member 520 in the second direction, and the second driving mechanism 540 is configured to drive the second load member 520 to reciprocate along the second direction in the second cavity, so that the impact mechanism 300 has a second impact load along the second direction.

[0080] like Figure 1and Figure 3 As shown, the second driving mechanism 540 includes a second fluid driving member 541, a second control valve 542, and two second fluid pipelines. One end of the second fluid driving member 541 is connected to the fluid source, and the other end is connected to the input end of the second control valve 542. The second control valve 542 has two second output ends. The input end of the control valve can selectively be connected to one of the two second delivery ends. The two second fluid pipelines are respectively connected to the two second output ends, with one second fluid pipeline corresponding to one second output end. The two second fluid pipelines penetrate the cavity wall of the second cavity and are connected to the second cavity. The two second fluid pipelines are relatively arranged on opposite sides of the second cavity. Fluid with a certain pressure is periodically delivered to the second cavity through the two second fluid pipelines to drive the second load member 520 to reciprocate in the second direction in the second cavity, thereby providing a second impact load with a certain frequency along the second direction to the impact mechanism 300.

[0081] In some embodiments, the fluid flowing in the second drive mechanism 540 and the fluid flowing in the first drive mechanism can be the same medium to facilitate fluid source management. The second fluid drive element 541 provides pressure for the fluid flowing through the second drive mechanism 540. The fluid medium can be either a liquid or a gas. If the fluid is a gas, the second fluid drive element 541 connected to the fluid source can be a fan, and fan types include but are not limited to axial flow fans, centrifugal fans, mixed flow fans, etc. If the fluid is a liquid, the second fluid drive element 541 connected to the fluid source can be a pump, and pump types include but are not limited to fixed frequency pumps, variable frequency pumps, etc. The second control valve 542 can be an electromagnetic reversing valve in an electromagnetic control valve to facilitate controlling the periodic entry of fluid into the two second fluid pipelines to drive the second load member 520 to reciprocate in the second direction in the second cavity. In addition, the first fluid drive element 531 and the second fluid drive element 541, the first control valve 532 and the second control valve 542 can be the same type of equipment to facilitate equipment installation, maintenance and management.

[0082] In some embodiments, the second fluid driving member 541 drives the fluid to flow out from the fluid source, pass through the second control valve 542, so that the fluid periodically enters the two second fluid pipelines respectively, to impact the two ends of the second load member 520 along the second direction respectively. When the two ends of the second load member 520 are respectively subjected to impact force, the second load member 520 reciprocates along the second direction, thereby generating a second impact load with a certain frequency to assist the impact mechanism in impacting the rock sample and improve the rock breaking effect.

[0083] like Figure 1 As shown, the composite rock breaking experimental device 10 further includes a second information collecting component 543 , which is connected to the two second fluid pipelines respectively to collect at least one of the flow rate and pressure of the fluid in the second fluid pipelines.

[0084] In some embodiments, the second information acquisition component 543 is used to collect at least one of the flow rate and pressure of the fluid in the second fluid pipeline, so as to control the fluid in the second fluid pipeline, thereby controlling the second impact load, wherein the fluid flow acquisition component in the second information acquisition component 543 includes but is not limited to orifice flowmeters, vortex flowmeters, ultrasonic flowmeters, mass flowmeters, turbine flowmeters, etc., and the pressure acquisition component in the second information acquisition component 543 includes but is not limited to pressure sensors, pressure gauges, differential pressure transmitters, etc. For the convenience of management and installation, the first information acquisition component 533 and the second information acquisition component 543 can adopt a unified equipment type to facilitate the installation, maintenance and management of the equipment.

[0085] like Figure 3 As shown, in some embodiments, the first load member 510 is an axial hammer, which is driven by the first driving mechanism 530 to reciprocate along the first direction in the first cavity of the impact mechanism 300 to assist the impact mechanism 300 in generating the first impact load, providing experimental theoretical guidance for the actual rock breaking process with the auxiliary impact load along the first direction, thereby improving the rock breaking efficiency of the rock breaking tool.

[0086] In some embodiments, to facilitate the installation, disassembly, and maintenance of the axial hammer, Figure 3 As shown, the impact mechanism 300 also includes a first end cover, and a hollow opening is performed on the position where the first cavity is required to be set at one end of the impact mechanism 300. The first end cover matches the opening of the impact mechanism 300 and forms a first cavity between the first end cover and the impact mechanism 300. The size of the axial hammer in the first direction is smaller than the size of the first cavity in the first direction. Therefore, the axial hammer can be driven by the first driving mechanism 530 to reciprocate along the first direction in the first space to provide the impact mechanism with an auxiliary first impact load along the first direction, thereby providing experimental theoretical guidance for the actual rock breaking process with an auxiliary impact load along the first direction.

[0087] like Figure 3 As shown, in some embodiments, the second load member 520 is a tangential hammer, which is driven by the second driving mechanism 540 to reciprocate along the second direction in the second cavity of the impact mechanism 300 to assist the impact mechanism 300 in generating the second impact load, providing experimental theoretical guidance for the actual rock breaking process with the auxiliary impact load along the second direction, thereby improving the rock breaking efficiency of the rock breaking tool.

[0088] In some embodiments, to facilitate installation, disassembly, and maintenance of the tangential hammer, Figure 3As shown, the impact portion of the impact mechanism 300 also includes a second end cover, and a hollow opening is performed on the position where the second cavity is required to be set at the other end of the impact mechanism 300. The second end cover matches the opening of the impact mechanism 300, and the second end cover is fixedly connected to the impact mechanism 300, and a second cavity is formed between the second end cover and the impact mechanism 300. The size of the tangential hammer in the second direction is smaller than the size of the second cavity in the second direction. Therefore, the tangential hammer can be driven by the second driving mechanism 540 in the second space to reciprocate along the second direction to provide the impact mechanism with an auxiliary second impact load along the second direction, thereby providing experimental theoretical guidance for the actual rock breaking process with an auxiliary impact load along the second direction.

[0089] In some embodiments, for example, Figure 3 As shown, only the axial hammer in the first load member 510 can be selected to move in the first cavity to provide the impact mechanism 300 with a first load only along its axial direction, thereby assisting the impact mechanism in impacting the rock sample 130, and providing experimental theoretical guidance for the actual rock breaking process with only the auxiliary impact load along the first direction; only the radial hammer in the second load member 520 can be selected to move in the second cavity to provide the impact mechanism 300 with a second load only along its radial direction, thereby assisting the impact mechanism in impacting the rock sample 130, and providing experimental theoretical guidance for the actual rock breaking process with only the auxiliary impact load along the second direction; both the axial hammer in the first load member 510 and the radial hammer in the second load member 520 can be selected to move in the first cavity and the radial hammer in the second load member 520 can be selected to move in the second cavity to provide the impact mechanism 300 with a first load along its axial direction and a second load along its radial direction, thereby assisting the impact mechanism in impacting the rock sample 130, and providing experimental theoretical guidance for the actual rock breaking process with both the auxiliary impact load along the first direction and the auxiliary impact load along the second direction.

[0090] like Figure 3 and Figure 4 As shown, the impact portion has a drill tooth 320 on the side facing the installation position, and an inclined angle is formed between the drill tooth 320 and the second direction, and the inclined angle is 0°-30°.

[0091] In some embodiments, the drill tooth 320 may also have an inclined angle with the third direction according to the installation direction and experimental scenario, and the inclined angle is 0°-30°.

[0092] In some embodiments, the drill teeth 320 include but are not limited to polycrystalline diamond compact (PDC) drill teeth, roller cone drill teeth, diamond drill teeth, cemented carbide drill teeth, and the like.

[0093] In some embodiments, as Figure 3As shown, the impact mechanism 300 has an impact portion at one end facing the installation position. Exemplarily, a drill tooth 320 is provided on the side of the second end cover of the impact portion facing the installation position, so that the impact mechanism 300 drives the drill tooth 320 to impact the rock sample.

[0094] In some embodiments, as Figure 3 and Figure 4 As shown, in order to facilitate the disassembly and installation of the drill teeth, the impact part also has a drill tooth clamping piece for fixing the drill teeth. The drill tooth clamping piece is fixedly connected to the impact mechanism 300, that is, fixedly connected to the second end cover of the impact mechanism. The fixed connection method includes but is not limited to welding, bolt connection, adhesive connection, etc. The drill tooth clamping piece and the drill tooth 320 are fixedly connected, including but not limited to welding, threaded bolt connection, pin connection, adhesive connection, wedge connection, etc. For example, the drill tooth clamping piece and the second end cover are connected by bolts to facilitate the disassembly and replacement of the drill tooth clamping piece. The drill tooth clamping piece and the drill teeth are connected by pins to facilitate the disassembly, replacement and increase or decrease of the drill teeth.

[0095] like Figure 5 、 Figure 6 and Figure 7 As shown, the impact portion has one or more drill teeth 320. When the impact portion has multiple drill teeth 320, the multiple drill teeth 320 are arranged at intervals along at least one of the second direction and the third direction; wherein the third direction has an angle with the second direction, such as Figure 2 and Figure 3 As shown, the third direction is a radial extension direction of the impact mechanism 300 , which is perpendicular to both the first direction and the second direction.

[0096] In some embodiments, as Figure 5 、 Figure 6 and Figure 7 As shown, the composite impact rock breaking experimental device can perform experiments on a single drill tooth 320 impacting a rock sample, and can also perform experiments on a plurality of drill teeth 320 impacting a rock sample. For example, the number of drill teeth is two, three, four, five, six, etc. For example, when the number of drill teeth 320 is two, the two drill teeth 320 can be spaced apart along the second direction or the third direction. When the number of drill teeth 320 is three, the drill teeth 320 can be divided into two rows along the second direction or the third direction, with two drill teeth 320 in one row spaced apart, and one drill tooth 320 in the other row inserted between the two drill teeth 320 in the previous row, so as to increase the impact area between the drill teeth 320 and the rock sample 130 and better fit the actual operation of the drill teeth during the drilling process. If the experiment involves more drill teeth 320, the drill teeth 320 can be arranged in multiple rows along the second direction or the third direction, with the drill teeth 320 in the same row spaced apart, and the drill teeth 320 in the latter row inserted between the drill teeth 320 in the former row.

[0097] like Figure 2 and Figure 3 As shown, the bracket 200 further has a guide post 210 extending along a first direction, and the impact mechanism 300 is configured to be slidably connected to the guide post 210 . The impact mechanism 300 is configured to slide along the guide post 210 under an applied force.

[0098] like Figure 1 and Figure 3 As shown, the impact mechanism 300 also includes a nozzle 310, the injection port of the nozzle 310 is directed toward the installation position, and the injection direction of the nozzle 310 has an inclined angle with the first direction. The nozzle 310 is used to inject high-pressure fluid, such as water, air, emulsion, chemical fluid, etc., to assist the impact mechanism 300 in impacting the rock sample, providing experimental theoretical guidance for high-pressure jet-assisted rock breaking.

[0099] In some embodiments, the shape of the nozzle includes but is not limited to circular, fan-shaped, conical, elliptical, spiral, needle-shaped nozzles, etc. For example, Figure 3 As shown, the nozzle is conical.

[0100] In some embodiments, the impact mechanism 300 also includes a nozzle clamp. To facilitate control of the spraying direction of the nozzle 310, an inclined surface is provided at one end of the impact mechanism 300 close to the mounting position. The nozzle clamp and the inclined surface of the impact mechanism 300 are fixedly connected. The spraying direction of the nozzle 310 can be controlled by controlling the inclination angle of the inclined surface, or by adjusting the thickness of the side of the nozzle clamp connected to the impact mechanism 300 to control the spraying direction of the nozzle 310. By controlling the fixed position of the nozzle clamp on the inclined surface, the spraying distance between the nozzle 310 and the mounting position can be controlled.

[0101] In some embodiments, the driving mechanism of the fluid in the nozzle 310 includes a driving pump, a control valve, a flow meter, a pressure collector, etc. The driving pump provides flow power and pressure for the fluid in the fluid source to control the fluid flowing through the control valve to the nozzle 310 to have a certain pressure. Among them, the control valve can adopt a pulse control valve to control the nozzle 310 to perform continuous hydraulic jet or pulse hydraulic jet. The flow meter includes but is not limited to orifice flowmeter, vortex flowmeter, ultrasonic flowmeter, mass flowmeter, turbine flowmeter, etc. The pressure collector includes but is not limited to pressure sensor, pressure gauge, differential pressure transmitter, etc.

[0102] like Figure 1 and Figure 2 As shown, the composite rock breaking experimental device 10 further includes a pressure component 600 , which is disposed around the rock sample 130 and moves toward or away from the rock sample 130 under the action of a force. The pressure component 600 is configured to apply or release pressure to the rock sample 130 .

[0103] like Figure 1 and Figure 2 As shown, the pressure assembly 600 includes a first pressure member 610, a second pressure member 620, a third pressure member 630 and a fourth pressure member 640. The first pressure member 610, the second pressure member 620, the third pressure member 630 and the fourth pressure member 640 are jointly arranged to form an accommodating space, and the rock sample 130 is located in the accommodating space; the first pressure member 610 and the third pressure member 630 are arranged opposite to each other, and the first pressure member 610 and the third pressure member 630 can move in directions closer to or away from each other; the second pressure member 620 and the fourth pressure member 640 are arranged opposite to each other, and the second pressure member 620 and the fourth pressure member 640 can move in directions closer to or away from each other.

[0104] In some embodiments, each pressure member in the pressure assembly 600 can be composed of a hydraulic cylinder and a hydraulic rod, which contacts the rock sample 130 to apply or release pressure on the rock sample 130. Exemplarily, the pressure range applied by the pressure member is 0-50 MPa. According to experimental requirements, pressure members with different pressure levels can be selected to control the pressure applied to the rock sample 130, and the pressure can also be controlled to be greater than 50 MPa.

[0105] In some embodiments, the four groups of pressure members in the pressure assembly 600 are divided into two groups for control, the first pressure member 610 and the third pressure member 630 are controlled by one group of drive control devices, and the second pressure member 620 and the fourth pressure member 640 are controlled by another group of drive control devices, so that the force on the rock sample is more balanced. Both groups of drive control devices can be hydraulic control devices, including a hydraulic pump, a hydraulic control valve and a pressure gauge, etc., wherein the hydraulic pump provides power to the hydraulic control device and the pressure assembly 600, so that the hydraulic rods in the two groups of pressure members in the pressure assembly 600 move toward or away from each other.

[0106] like Figure 1 、 Figure 2 and Figure 3 As shown, the base 100 includes a body 110 and a mounting platform 120 . The mounting platform 120 is movably disposed on the body 110 and can move relative to the body 110 along at least one of a first direction, a second direction, and a third direction under a force.

[0107] In some embodiments, the mounting platform 120 is used to place the rock sample 130, for example, Figure 3As shown, the mounting platform 120 can be a square container with an enclosure structure, and holes are opened on the side facades around the mounting platform 120. The hydraulic cylinders of the four pressure members in the pressure assembly 600 are fixedly arranged on the four side facades of the square container. The fixing methods include but are not limited to welding, threaded bolt connection, flange connection, etc. The hydraulic rods in the four pressure members in the pressure assembly 600 pass through the openings and contact the rock sample 130 to apply or release pressure on the rock sample 130.

[0108] In some embodiments, the rock sample 130 can be in the form of a square body and placed in the above-mentioned square container. A rigid pad can be set between the rock sample and the hydraulic rods of each pressure member. The shape of the rigid pad is the same as the cross-sectional shape of the rock sample, exemplarily a square. One side of the rigid pad is in direct contact with the four side elevations of the square container, and the other side is in direct contact with the rock sample 130. Therefore, direct contact between the pressure member and the rock sample 130 is avoided, and the force area of ​​the rock sample 130 can also be increased, so that the force on the rock sample is more balanced and more adapted to the rock formation state in the actual formation.

[0109] In some embodiments, before the rock sample 130 is placed in the mounting table 120, the rock sample 130 can be heated in an oven to a set temperature, or a ceramic heating plate can be set between the mounting table and the rock sample 130. Before the rock sample 130 is impacted, the rock sample 130 is heated to the set temperature by the ceramic heating plate. In addition, the mounting table can also be provided with insulation to prevent the rock sample 130 from losing temperature during the operation of the composite impact rock breaking experimental device. The insulation method includes but is not limited to the use of insulation boards, insulation coatings, insulation cotton, etc.

[0110] In some embodiments, the mounting platform 120 can move relative to the body 110 along at least one of the first direction, the second direction, and the third direction under the action of a force. For example, Figure 1 and Figure 3 As shown, a slide rail along the second direction is fixedly provided on one side of the body 110 of the base 100 close to the mounting position, and a slider matching the slide rail is provided on the slide rail, and the slider is fixedly connected to the mounting platform 120, so that the mounting platform 120 can move relative to the body 110 in the second direction, thereby allowing the rock sample 130 to move relative to the drill tooth 320 in the second direction, so that the rock sample 130 is subjected to the impact force of the drill tooth 320 in the second direction. Of course, the direction of the slide rail can also be used to control the mounting platform 120 to move relative to the body 110 in the first direction or the third direction, or in a composite movement of two of the first direction, the second direction and the third direction, for example, in a composite movement along the first direction and the second direction, the first direction and the third direction, the second direction and the third direction, or in a composite movement along the first direction, the second direction and the third direction, so as to obtain experimental theoretical data in the composite direction and provide theoretical guidance for the process of rock breaking in the composite direction.

[0111] In some embodiments, as Figure 1 and Figure 3 As shown, a movement drive device for the mounting platform 120 is provided in the main body 110 of the base 100. The drive device can adopt a hydraulic drive system, including a hydraulic cylinder, a hydraulic rod, and a hydraulic drive device, wherein the hydraulic cylinder is fixedly connected to the main body 110, one end of the hydraulic rod is in the hydraulic cylinder, and the other end is fixedly connected to the mounting platform 120. The connection method includes but is not limited to welding, threaded bolt connection, flange connection, etc. For example, the fixed connection method between the hydraulic cylinder and the main body 110, and the hydraulic rod and the mounting platform 120 all adopts a threaded bolt connection method to facilitate the installation, maintenance and management of the equipment. The hydraulic control device includes a hydraulic pump, a hydraulic control valve and a pressure gauge, etc. The hydraulic control device controls the hydraulic rod to move in a first direction, so that the mounting platform 120 can move in the first direction relative to the main body 110 under the action of this force.

[0112] In other embodiments, a movement drive device for the mounting platform 120 is provided in the main body 110 of the base 100. The drive device includes a ball screw and a drive motor. One end of the ball screw is connected to the drive motor. The nut in the ball screw is fixedly connected to the mounting platform 120, so that the drive motor drives the mounting platform 120 to move in a first direction relative to the main body 110.

[0113] In some embodiments, under the action of the above-mentioned motion driving device, the mounting platform 120 can move relative to the main body 110 along the first direction in a manner including but not limited to uniform speed motion, gradually changing speed motion, and uniformly changing speed motion, so that the mounting platform 120 drives the rock sample 130 to move at a constant speed, constant distance, gradually changing acceleration, and uniform acceleration.

[0114] like Figure 2 and Figure 3As shown, the composite rock breaking experimental device 10 further includes a first load detection member 700 and a second load detection member 710, and the bracket 200 further includes a first bearing platform and a second bearing platform, which are penetrated by the impact mechanism 300 and spaced apart along the first direction. The first load detection member 700 is arranged between the first bearing platform and the second bearing platform, and is configured to detect the axial impact force received by the impact part, which can be regarded as the magnitude of the force along the first direction applied by the rock sample 130 to the drill tooth 320 on the impact part when the drill tooth 320 impacts the rock sample 130 during the rock breaking process. Of course, during the experimental process of the composite impact experimental device, In the experiment, the magnitude of the force is also equal to the sum of the axial static load generated when the impact part impacts the rock sample 130 when the power mechanism 400 drives the impact mechanism 300 to move in the first direction, and the axial impact load applied to the impact mechanism 300 by the first load member 510 moving in the first cavity. Therefore, during the experiment, the magnitude of the axial impact force can be adjusted by controlling the movement of the power mechanism 400 and the first load member 510, and the crushing result of the rock sample 130 is matched with the value detected by the first load detection member 700, so as to obtain the axial impact force required by the impact part or the drill tooth 320 when impacting the rock sample 130.

[0115] like Figure 2 and Figure 3 As shown, the second load detection member 710 is disposed at the mounting position. Similarly, when the mounting platform 120 moves relative to the main body 110 in the second direction, the value measured by the second load detection member 710 can be regarded as the magnitude of the tangential impact force in the second direction applied by the drill tooth 320 on the impact portion to the rock sample 130 when the drill tooth 320 on the impact portion impacts the rock sample 130 during the rock breaking process. During the experiment of the composite impact test device, the magnitude of this force is also equal to the sum of the tangential static load generated when the impact portion impacts the rock sample 130 when the power mechanism 400 drives the impact mechanism 300 to move in the first direction, and the tangential impact load applied to the impact mechanism 300 by the second load member 520 moving in the second cavity. Therefore, during the experiment, the magnitude of the tangential impact force can be adjusted by controlling the movement of the power mechanism 400 and the second load member 520. The crushing result of the rock sample 130 is then compared with the value detected by the second load detection member 710, thereby obtaining the tangential impact force required by the impact portion or the drill tooth 320 when impacting the rock sample 130.

[0116] In some embodiments, as Figure 2 and Figure 3As shown, the position of the first bearing platform is away from the installation position along the first direction, the position of the second bearing platform is close to the installation position along the first direction, the first pressure platform and the second pressure platform are fixedly connected at intervals along the first direction, and the second bearing platform and the impact mechanism 300 are fixedly connected, wherein the fixed connection methods include but are not limited to welding, threaded bolt connection, etc. For example, the first pressure platform and the second pressure platform are connected by threaded bolts to facilitate the installation, maintenance and management of the impact mechanism 300.

[0117] In some embodiments, as Figure 2 As shown, the axial direction of the guide column 210 is consistent with the first direction, and the guide column 210 is passed through the first bearing platform, thereby limiting the first pressure platform, the second pressure platform and the impact mechanism 300 to move along the first direction. When the power mechanism 400 adopts a hydraulic control mechanism, the hydraulic rod in the hydraulic mechanism passes through the upper platform connected to the bracket 200 and is fixedly connected to the first pressure platform. Therefore, under the drive of the power mechanism 400, the impact mechanism 300 can reciprocate along the first direction. When the impact mechanism 300 impacts the rock sample, the first load detection member 700 arranged between the first bearing platform and the second bearing platform is used to detect the axial impact force applied to the impact part of the impact mechanism 300, that is, the stress applied to the drill tooth along the first direction.

[0118] In some embodiments, as Figure 3 As shown, the second load detection member 710 is arranged at the fixed connection between the motion drive device of the mounting platform 120 and the mounting platform 120. When the impact mechanism 300 impacts the rock sample, it is used to detect the tangential impact force exerted on the impact part, that is, the stress exerted on the drill tooth along the second direction.

[0119] like Figure 1 As shown, the composite rock breaking experimental device also includes a control collector 720, which is electrically connected to the first load detection component 700, the second load detection component 710, the first fluid driving component 531, the first control valve 532, the first information acquisition component 533, the second fluid driving component 541, the second control valve 542, and the second information acquisition component 543. The control collector 720 is configured to collect information detected by the first load detection component 700, the second load detection component 710, the first information acquisition component 533, and the second information acquisition component 543, and control the start and stop of the first fluid driving component 531, the first control valve 532, the second fluid driving component 541, and the second control valve 542 according to the collected information.

[0120] In some embodiments, the control collector 720 is also connected to a group of hydraulic control devices in the power mechanism 400, two groups of hydraulic control devices in the pressure assembly 600, and a group of hydraulic control devices or drive motors in the motion drive device of the mounting platform 120 for electrical signal connection, and collects information from the pressure gauges, hydraulic control valves, hydraulic pumps or drive motors therein, and controls the start and stop of the hydraulic pumps and hydraulic control valves in the hydraulic control devices according to the collected information.

[0121] In some embodiments, based on the above-mentioned collected information, the above-mentioned parameters can also be pre-set in the control collector 720. After starting the composite impact rock breaking experimental device 10, each device in the composite impact rock breaking experimental device is automatically adjusted to the set value to perform experimental operations.

[0122] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0123] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0124] It should be readily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes the meaning of “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0125] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A composite impact rock breaking experimental device, characterized in that: include: A base (100) having a mounting position configured to mount a rock sample (130) to be crushed; a bracket (200), disposed on the base (100) and fixedly connected to the base (100); An impact mechanism (300) and a power mechanism (400), wherein the impact mechanism (300) is arranged above the installation position and is movably connected to the bracket (200), and the power mechanism (400) is configured to drive the impact mechanism (300) to reciprocate along a first direction. The impact mechanism (300) has an impact portion at one end facing the installation position, and when the impact mechanism (300) reciprocates along the first direction, the impact portion is configured to intermittently impact the rock sample (130) on the installation position; A load assembly (500) is configured to provide an impact load to the impact mechanism (300) along at least one of the first direction and the second direction; wherein the first direction and the second direction are perpendicular to each other.

2. The composite impact rock breaking experimental device according to claim 1, characterized in that: The load component (500) is movably arranged on the impact mechanism (300), and the load component (500) is configured to be movable relative to the impact mechanism (300) in at least one of a first direction and a second direction to provide the impact load to the impact mechanism (300).

3. The composite impact rock breaking experimental device according to claim 2, characterized in that: The load assembly (500) includes a first load member (510) and a second load member (520), wherein the first load member (510) and the second load member (520) are both movably disposed on the impact mechanism (300); The first load member (510) is movable relative to the impact mechanism (300) in the first direction to provide the impact mechanism (300) with a first impact load along the first direction; The second load member (520) is movable relative to the impact mechanism (300) in the second direction to provide the impact mechanism (300) with a second impact load along the second direction.

4. The composite impact rock breaking experimental device according to claim 3, characterized in that: The composite impact rock breaking experimental device (10) further includes a first driving mechanism (530) and a second driving mechanism (540); The impact mechanism (300) has a first cavity extending along the first direction and a second cavity extending along the second direction; the first load member (510) is disposed in the first cavity, and the size of the first cavity in the first direction is larger than the size of the first load member (510) in the first direction; the second load member (520) is disposed in the second cavity, and the size of the second cavity in the second direction is larger than the size of the second load member (520) in the second direction; The first driving mechanism (530) is configured to drive the first load member (510) to reciprocate along the first direction in the first cavity, and the second driving mechanism (540) is configured to drive the second load member (520) to reciprocate along the second direction in the second cavity.

5. The composite impact rock breaking experimental device according to claim 4, characterized in that: The first driving mechanism (530) comprises a first fluid driving member (531), a first control valve (532) and two first fluid pipelines. One end of the first fluid driving member (531) is connected to a fluid source, and the other end is connected to an input end of the first control valve (532). The first control valve (532) has two first output ends. The input end of the control valve can selectively be connected to one of the two first delivery ends. The two first fluid pipelines are respectively connected to the two first output ends, one first fluid pipeline corresponds to one first output end, the two first fluid pipelines pass through the cavity wall of the first cavity and are connected to the first cavity, the two first fluid pipelines are arranged at intervals along the first direction on the cavity wall of the first cavity, and the fluid with a certain pressure is periodically transported to the first cavity through the two first fluid pipelines to drive the first load member (510) to reciprocate along the first direction in the first cavity.

6. The composite impact rock breaking experimental device according to claim 5, characterized in that: The second driving mechanism (540) comprises a second fluid driving member (541), a second control valve (542) and two second fluid pipelines. One end of the second fluid driving member (541) is connected to a fluid source, and the other end is connected to an input end of the second control valve (542). The second control valve (542) has two second output ends. The input end of the control valve can be selectively connected to one of the two second delivery ends. The two second fluid pipelines are respectively connected to the two second output ends, one second fluid pipeline corresponds to one second output end, the two second fluid pipelines pass through the cavity wall of the second cavity and are connected to the second cavity, and the two second fluid pipelines are relatively arranged on opposite sides of the second cavity. The fluid with a certain pressure is periodically transported to the second cavity through the two second fluid pipelines to drive the second load member (520) to reciprocate along the second direction in the second cavity.

7. The composite impact rock breaking experimental device according to claim 6, characterized in that: The device further comprises a first information collecting component (533) and a second information collecting component (543), wherein the first information collecting component (533) is connected to the two first fluid pipelines respectively to collect at least one of the flow rate and the pressure of the fluid in the first fluid pipeline, and the second information collecting component (543) is connected to the two second fluid pipelines respectively to collect at least one of the flow rate and the pressure of the fluid in the second fluid pipeline.

8. The composite impact rock breaking experimental device according to any one of claims 1 to 7, characterized in that: The impact portion has a drill tooth (320) on a side facing the installation position, and an inclined angle is formed between the drill tooth (320) and the second direction, and the inclined angle is 0°-30°.

9. The composite impact rock breaking experimental device according to claim 8, characterized in that: The impact portion has one or more drill teeth (320). When the impact portion has multiple drill teeth (320), the multiple drill teeth (320) are arranged at intervals along at least one of the second direction and the third direction; wherein an angle is formed between the third direction and the second direction.

10. The composite impact rock breaking experimental device according to any one of claims 1 to 7, characterized in that: The bracket (200) further comprises a guide post (210) extending in a first direction, the impact mechanism (300) is configured to be slidably connected to the guide post (210), and the impact mechanism (300) is configured to slide along the guide post (210) under an applied force.

11. The composite impact rock breaking experimental device according to any one of claims 1 to 7, characterized in that: The impact mechanism (300) further comprises a nozzle (310), the spray port of the nozzle (310) faces the installation position, and the spray direction of the nozzle (310) has an inclined angle with the first direction.

12. The composite impact rock breaking experimental device according to any one of claims 1 to 7, characterized in that: The composite impact rock breaking experimental device (10) further includes a pressure component (600), which is arranged around the rock sample (130) and moves toward or away from the rock sample (130) under the action of a force. The pressure component (600) is configured to apply or release pressure to the rock sample (130).

13. The composite impact rock breaking experimental device according to claim 12, characterized in that: The pressure assembly (600) includes a first pressure member (610), a second pressure member (620), a third pressure member (630) and a fourth pressure member (640), wherein the first pressure member (610), the second pressure member (620), the third pressure member (630) and the fourth pressure member (640) are jointly arranged to form an accommodating space, and the rock sample (130) is located in the accommodating space; The first pressure member (610) and the third pressure member (630) are arranged relative to each other, and the first pressure member (610) and the third pressure member (630) can move in directions closer to or away from each other; the second pressure member (620) and the fourth pressure member (640) are arranged relative to each other, and the second pressure member (620) and the fourth pressure member (640) can move in directions closer to or away from each other.

14. The composite impact rock breaking experimental device according to any one of claims 1 to 7, characterized in that: The base (100) includes a body (110) and a mounting platform (120), wherein the mounting platform (120) is movably arranged on the body (110), and the mounting platform (120) can move relative to the body (110) along at least one of the first direction, the second direction and the third direction under the action of a force.

15. The composite impact rock breaking experimental device according to any one of claims 1 to 7, characterized in that: The composite impact rock-breaking experimental device further comprises a first load detection member (700) and a second load detection member (710); the bracket (200) further comprises a first bearing platform and a second bearing platform; the first bearing platform and the second bearing platform are penetrated by the impact mechanism (300) and are spaced apart along the first direction; the first load detection member (700) is arranged between the first bearing platform and the second bearing platform and is configured to detect the axial impact force exerted on the impact part; the second load detection member is arranged on the mounting position and is configured to detect the tangential impact force exerted on the impact part.

16. The composite impact rock breaking experimental device according to claim 15, characterized in that: The composite impact rock breaking experimental device further includes a control collector (720), which is electrically connected to the first load detection component (700), the second load detection component (710), the first fluid driving component (531), the first control valve (532), the first information collection component (533), the second fluid driving component (541), the second control valve (542), and the second information collection component (543). The control collector (720) is configured to collect information detected by the first load detection component (700), the second load detection component (710), the first information collection component (533), and the second information collection component (543), and control the start and stop of the first fluid driving component (531), the first control valve (532), the second fluid driving component (541), and the second control valve (542) according to the collected information.

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