Coal and rock mass dynamic sample processing equipment and coal and rock mass dynamic sample processing method

Abstract

The invention provides coal and rock mass dynamic sample processing equipment and a coal and rock mass dynamic sample processing method. The coal and rock mass dynamic sample processing equipment comprises a seat body; the dust removal assembly comprises a cover body and a fan, the cover body covers the seat body and is provided with a through hole, and the fan is arranged at the through hole; the linear cutting assembly is arranged on the cover body, and the linear cutting assembly comprises a transverse cutting device and a longitudinal cutting device; the bearing assembly is movably arranged on the seat body, the bearing assembly comprises a base plate and a clamping part arranged on the base plate, the base plate is used for bearing a rock sample to be processed, and the clamping part is used for clamping the rock sample to be processed. The problems that in the prior art, the labor intensity of workers is increased and the machining efficiency is low due to the coal and rock mass dynamic sample machining mode are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal rock mass dynamic sample processing, and in particular to a coal rock mass dynamic sample processing device and a coal rock mass dynamic sample processing method. Background Art

[0002] At present, drilling and blasting is a mining method commonly used in most open-pit coal mines. In order to study the dynamic response of open-pit coal rock mass under blast load, it is necessary to carry out indoor dynamic tests on coal samples, and the processing of cylindrical coal samples of specific sizes is the first step in conducting dynamic tests. According to T / CSRME 001 "Rock Dynamic Properties Test Procedure", the sample is usually cylindrical with a height-to-diameter ratio of 0.5-1.0, the sample diameter should be slightly smaller than the rod diameter, the roughness error of the two end faces of the sample is ±0.05mm, and the end face should be perpendicular to the axis of the sample, with an allowable error of ±0.25°. Since the diameters of the rods of different dynamic test equipment are different, general processing equipment needs to be able to process cylindrical specimens of different diameters and heights, and at the same time, the roughness of the end face of the sample and the degree of perpendicularity between the end face and the axis of the sample have high requirements.

[0003] Unlike underground coal mines and other open-pit metal and non-metal mines, the strength and integrity of underground coal rock mass are usually better than those of open-pit coal mines because they are buried deep. Therefore, samples can be made by coring with geological exploration core drills. The blasted rocks of other open-pit metal and non-metal mines are generally harder, and the softening effect after contact with water is not very obvious. Therefore, after the blasting operation, the field rock samples without obvious cracks, relatively complete and regular are directly selected from the blast pile and processed using ordinary internal circle tool cutting equipment. However, the coal rock mass mined in the open-pit has low strength, is loose and fragile, and is easily softened when exposed to water. The ordinary internal circle tool cutting equipment and process generate high temperatures due to the intense friction between the tool and the field rock sample during the drilling process. Therefore, continuous water cooling is required. The coal rock softens and disintegrates when exposed to water, and it is often difficult to process coal rock samples that meet the size and flatness. Therefore, the processing of open-pit coal rock dynamic samples has become a problem.

[0004] In the prior art, there are two main methods for processing dynamic samples of soft coal rock mass in open-pit mining:

[0005] The first method is to use a disc cutter to cut the large coal rock sample into cubes slightly larger than the required size, and then further process it to the required size by grinding. However, this method introduces human factors into the grinding process, and the grinding quality varies from person to person.

[0006] The second method: The traditional single-wire cutting method requires the cooperation of multiple devices. First, the coal rock sample retrieved on site is placed in the wire cutting machine and processed into a cylinder slightly longer than the required size, and then taken to the polishing machine to process it to the required size, and the end face is polished to the required flatness. However, the wire cutting machine usually used in this method is a single-wire cutting machine with only one cutting wire, and the cutting method adopted is that the sample position is fixed and the cutting wire moves according to the required size, which has the problems of weak cutting force and poor processing accuracy. Summary of the invention

[0007] The main purpose of the present invention is to provide a coal rock dynamic sample processing device and a coal rock dynamic sample processing method to solve the problem that the way of processing coal rock dynamic samples in the prior art increases the labor intensity of workers and has low processing efficiency.

[0008] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a coal rock dynamic sample processing device, comprising: a base body; a dust removal assembly, comprising a cover body and a fan, the cover body is arranged on the base body and has a through hole, and the fan is arranged at the through hole; a wire cutting assembly, arranged on the cover body, the wire cutting assembly comprises a transverse cutting device and a longitudinal cutting device; a bearing assembly, movably arranged on the base body, the bearing assembly comprises a chassis and a clamping part arranged on the chassis, the chassis is used to carry the rock sample to be processed, and the clamping part is used to clamp the rock sample to be processed.

[0009] Furthermore, the coal rock dynamic sample processing equipment also includes: a driving device, which is connected to the chassis to drive the chassis to drive the clamping part and the rock sample to be processed to move along at least one of the first direction, the second direction and the third direction; wherein the first direction is set at a first angle to the second direction, and the third direction is set at a second angle to the plane formed by the first direction and the second direction.

[0010] Furthermore, the transverse cutting device includes two first wire cutting mechanisms arranged opposite to each other, and the cutting direction of each first wire cutting mechanism is arranged parallel to the cross-section of the rock sample to be processed; and / or, the longitudinal cutting device includes two second wire cutting mechanisms arranged opposite to each other, and the cutting direction of each second wire cutting mechanism is arranged parallel to the longitudinal section of the rock sample to be processed.

[0011] Furthermore, the dust removal component also includes: a dust collection bag, which is arranged at the through hole to collect the dust sucked by the fan.

[0012] Furthermore, the chassis includes: two first support beams arranged opposite to each other; a second support beam, the two first support beams are connected by the second support beam; wherein the two first support beams and the second support beam are surrounded by a avoidance opening, and the avoidance opening is used to avoid the cutting line of the longitudinal cutting device; there are at least three clamping parts, at least one clamping part is arranged on each first support beam, and at least one clamping part is arranged on the second support beam.

[0013] Further, the clamping part is a clamp; and / or the clamping part is threadedly connected to the chassis or connected by a fastener; and / or the clamping part clamps the middle part of the rock sample to be processed along the height direction of the rock sample to be processed.

[0014] Furthermore, the driving device includes: a first guide rail extending along the X direction; a second guide rail slidably arranged on the first guide rail and extending along the Y direction; a third guide rail, the first guide rail is liftably arranged on the third guide rail, and the third guide rail extends along the Z direction; wherein the chassis is slidably arranged on the second guide rail.

[0015] Furthermore, the coal rock dynamic sample processing equipment also includes: a control module; a displacement sensor, which is electrically connected to the control module to detect the position of the chassis; and / or a pressure sensor, which is electrically connected to the control module to detect the pressure value in the cover.

[0016] According to another aspect of the present invention, a method for processing coal rock dynamic samples is provided, which is applicable to the above-mentioned coal rock dynamic sample processing equipment. The method for processing coal rock dynamic samples includes: step S1; starting the transverse cutting device of the coal rock dynamic sample processing equipment to cut the rock sample to be processed to a preset height; step S2: starting the longitudinal cutting device of the coal rock dynamic sample processing equipment to cut the rock sample to be processed at a preset height into one or more samples along a preset path.

[0017] Furthermore, the method for processing coal rock dynamic samples also includes step S3 after step S2: after the longitudinal cutting device is shut down for amin, the fan of the coal rock dynamic sample processing equipment is controlled to start for dust removal; wherein 0.5min≤a≤1.5min.

[0018] According to the technical solution of the present invention, the coal rock dynamic sample processing equipment includes a seat, a dust removal assembly, a wire cutting assembly and a bearing assembly. The dust removal assembly includes a cover body and a fan. The cover body is arranged on the seat body and has a through hole. The fan is arranged at the through hole. The wire cutting assembly is arranged on the cover body, and the wire cutting assembly includes a transverse cutting device and a longitudinal cutting device. The bearing assembly can be movably arranged on the seat body, and the bearing assembly includes a chassis and a clamping part arranged on the chassis. The chassis is used to carry the rock sample to be processed, and the clamping part is used to clamp the rock sample to be processed. In this way, through the cooperation of the transverse cutting device and the longitudinal cutting device, the rock sample to be processed can be accurately cut into samples of the required size, which greatly improves the accuracy and efficiency of sample processing, thereby solving the problem that the method of processing coal rock dynamic samples in the prior art increases the labor intensity of the staff and the processing efficiency is low. At the same time, the above-mentioned setting of the dust removal assembly avoids dust flying during the processing process, improves the working environment, and protects the health of the operator.

[0019] Compared with the coal rock dynamic sample processing method in the prior art, the coal rock dynamic sample processing equipment in the present application has a vertically arranged double cutting wire assembly, combined with an optimized design of a one-time forming method of cutting the front end face to a preset height and then cutting the cylindrical surface to a designed diameter. It can achieve high-precision processing of open-pit mined soft coal rock cylindrical samples of different diameters and heights without the need for secondary grinding, and also avoids direct exposure of operators to high concentrations of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a coal rock mass dynamics sample processing device according to the present invention is shown;

[0022] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the coal rock mass dynamic sample processing equipment after the base, bearing components and driving device are assembled;

[0023] Figure 3 It shows the cylindrical sample cutting layout and cutting sequence diagram of the coal rock mass dynamic sample processing equipment according to the present invention;

[0024] Figure 4 A schematic diagram of the upper and lower end surface cutting positions of the coal rock mass dynamic sample processing equipment according to the present invention is shown.

[0025] The above drawings include the following reference numerals:

[0026] 10. Base body;

[0027] 20. Dust removal assembly; 21. Cover; 22. Fan; 23. Dust collection bag;

[0028] 31. transverse cutting device; 311. first linear cutting mechanism; 32. longitudinal cutting device; 321. second linear cutting mechanism;

[0029] 40. bearing assembly; 41. chassis; 411. first support beam; 412. second support beam; 413. avoidance opening; 42. clamping portion;

[0030] 50. Rock samples to be processed;

[0031] 60. Driving device. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0034] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0035] In order to solve the problem that the method of processing coal rock dynamic samples in the prior art increases the labor intensity of workers and has low processing efficiency, the present application provides a coal rock dynamic sample processing equipment and a coal rock dynamic sample processing method.

[0036] like Figure 1 and Figure 2 As shown, the coal rock dynamic sample processing equipment includes a base 10, a dust removal assembly 20, a wire cutting assembly and a bearing assembly 40. Among them, the dust removal assembly 20 includes a cover 21 and a fan 22, the cover 21 is covered on the base 10 and has a through hole, and the fan 22 is arranged at the through hole. The wire cutting assembly is arranged on the cover 21, and the wire cutting assembly includes a transverse cutting device 31 and a longitudinal cutting device 32. The bearing assembly 40 is movably arranged on the base 10, and the bearing assembly 40 includes a chassis 41 and a clamping part 42 arranged on the chassis 41, the chassis 41 is used to carry the rock sample 50 to be processed, and the clamping part 42 is used to clamp the rock sample 50 to be processed.

[0037] By applying the technical solution of this embodiment, the rock sample 50 to be processed can be accurately cut into samples of the required size through the cooperation of the transverse cutting device 31 and the longitudinal cutting device 32, which greatly improves the accuracy and efficiency of sample processing, thereby solving the problem that the method of processing coal rock dynamic samples in the prior art increases the labor intensity of the workers and has low processing efficiency. At the same time, the above-mentioned setting of the dust removal component 20 avoids dust flying during the processing process, improves the working environment, and protects the health of the operator.

[0038] Compared with the coal rock dynamic sample processing method in the prior art, the coal rock dynamic sample processing equipment in this embodiment has a vertically arranged double cutting wire assembly, combined with an optimized design of a one-time forming method of cutting the front end face to a preset height and then cutting the cylindrical surface to a designed diameter. This can achieve high-precision processing of open-pit mined soft coal rock cylindrical samples of different diameters and heights without the need for secondary grinding, and also avoids direct exposure of operators to high concentrations of dust.

[0039] In this embodiment, the coal rock dynamic sample processing equipment adopts a cutting method of first cutting the end surface and then cutting the cylindrical surface, which improves the accuracy and efficiency of sample processing.

[0040] In this embodiment, the base 10 is a rectangular frame. The cover 21 is a hexahedral structure, the internal space of which can accommodate all other components, and can provide on-site rock sample fixation and mobile platform movement space during cylindrical specimen processing, and reserve necessary inspection and maintenance space, and the strength should be sufficient to ensure the smooth operation of the dual cutting line components installed on its structure.

[0041] like Figure 2 As shown, the coal rock dynamic sample processing equipment also includes a driving device 60, which is connected to the chassis 41 to drive the chassis 41 to drive the clamping part 42 and the rock sample 50 to be processed to move in at least one of the first direction, the second direction and the third direction. Among them, the first direction and the second direction are arranged at a first angle, and the third direction and the plane formed by the first direction and the second direction are arranged at a second angle. Optionally, the first angle is 90°. Optionally, the second angle is 90°. In this way, the above-mentioned setting of the driving device 60 can move the rock sample 50 to be processed in the first direction, the second direction and the third direction, so as to perform wire cutting on the rock sample 50 to be processed. At the same time, the above-mentioned setting of the driving device 60 makes the sample processing process more automated, reduces the error of manual operation, and further improves the accuracy of sample processing.

[0042] In this embodiment, the driving device 60 is a three-degree-of-freedom actuator, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. The rock sample 50 to be processed is fixed on the driving device 60, and can be moved forward / backward, left / right, and up / down. With the vertically arranged double cutting line device, it can realize the one-time forming of a cylinder of any size within the design range (it can also directly process rectangular parallelepiped, cube and other shaped samples). The dust removal component 20 can achieve good dust sealing and collection during the processing, solving the problem that traditional processing equipment cannot process soft coal rock samples, or requires multiple devices to be used in conjunction to process soft coal rock samples. Specifically, the three-dimensional driving system can realize the full adjustment of the rock sample, improve the cutting accuracy and flexibility, and is particularly suitable for the processing of rock samples that require precise size and shape. By implementing this driving system, the equipment can not only adapt to rock samples of different sizes and shapes, but also fine-tune the rock sample to ensure the precise alignment of the cutting line with the surface of the rock sample, which is of great value for studying the mechanical behavior of the rock mass under different stress states and can provide more accurate data support for geotechnical engineering design.

[0043] Optionally, the transverse cutting device 31 includes two first wire cutting mechanisms 311 arranged opposite to each other, and the cutting direction of each first wire cutting mechanism 311 is arranged parallel to the cross section of the rock sample 50 to be processed; and / or, the longitudinal cutting device 32 includes two second wire cutting mechanisms 321 arranged opposite to each other, and the cutting direction of each second wire cutting mechanism 321 is arranged parallel to the longitudinal section of the rock sample 50 to be processed. In this way, the above arrangement enables the wire cutting assembly to include two sets of cutting wire systems arranged horizontally and vertically, wherein the two first wire cutting mechanisms 311 arranged horizontally are respectively installed on the left and right sides of the cover body 21, and are mainly used for the horizontal wire cutting of the coal rock sample on site, and the height of the coal rock sample is cut to the designed cylindrical sample height. The two second wire cutting mechanisms 321 arranged vertically are installed at the upper and lower ends of the cover body 21, and are located behind the transverse cutting device 31, and are mainly used for cylindrical cutting of the rock sample 50 to be processed after the first step of cutting, and the cylindrical sample of the required size is obtained by processing.

[0044] In this embodiment, the transverse cutting device 31 includes two first wire cutting mechanisms 311 arranged opposite to each other, and the cutting direction of each first wire cutting mechanism 311 is arranged parallel to the cross section of the rock sample 50 to be processed. The longitudinal cutting device 32 includes two second wire cutting mechanisms 321 arranged opposite to each other, and the cutting direction of each second wire cutting mechanism 321 is arranged parallel to the longitudinal section of the rock sample 50 to be processed. In this way, this arrangement can ensure the stability of the rock sample during the cutting process, avoid the rock sample from being offset or damaged due to uneven cutting force, and is suitable for high-precision rock sample cutting. The use of a symmetrical wire cutting mechanism can effectively balance the force during the cutting process, reduce the accumulation of internal stress of the rock sample, and thus reduce the risk of cracking of the rock sample.

[0045] like Figure 1 As shown, the dust removal assembly 20 also includes a dust collection bag 23. The dust collection bag 23 is arranged at the through hole to collect the dust sucked by the fan 22. In this way, during the operation of the coal rock dynamics sample processing equipment, the dust collection bag 23 collects the dust generated during the processing to prevent the operator from being directly exposed to high-concentration dust.

[0046] Specifically, the above-mentioned setting of the dust collection bag 23 can not only effectively collect the dust generated by cutting and reduce environmental pollution, but also facilitate subsequent dust treatment and analysis, providing the possibility for studying material changes during the rock sample cutting process, and is suitable for laboratories or field operations with high environmental protection requirements.

[0047] like Figure 2 As shown, the chassis 41 includes two first support beams 411 and a second support beam 412 arranged opposite to each other. The two first support beams 411 are connected by the second support beam 412. The two first support beams 411 and the second support beam 412 surround to form an escape opening 413, and the escape opening 413 is used to escape the cutting line of the longitudinal cutting device 32. There are at least three clamping parts 42, and each first support beam 411 is provided with at least one clamping part 42, and each second support beam 412 is provided with at least one clamping part 42. In this way, the above arrangement increases the contact area between the chassis 41 and the rock sample 50 to be processed, thereby improving the bearing performance of the bearing assembly 40; on the other hand, it makes the number selection and setting position of the clamping parts 42 more flexible to meet different use requirements and working conditions, and also improves the processing flexibility of the staff. At the same time, the structural design of the chassis 41 can provide sufficient support and clamping force to ensure the stability of the rock sample 50 to be processed during the cutting process, and is suitable for processing rock samples of various shapes and sizes, such as large rock samples, complex structure rock bodies, etc.

[0048] In this embodiment, there are three clamping parts 42, one clamping part 42 is provided on each first support beam 411, and one clamping part 42 is provided on the second support beam 412. The size of the chassis 41 is adjustable to accommodate different sizes of rock samples 50 to be processed. The three clamping parts 42 are arranged in a triangular shape to ensure that the vertical cutting line has enough cutting space, and the cutting line can perform cutting operations on the rock sample 50 to be processed in the avoidance 413. The chassis 41 is connected to the driving device 60 and can move synchronously with the driving device 60, so that the rock sample 50 to be processed and the wire cutting line assembly form relative movement, and cut out a program-controlled shape and size.

[0049] It should be noted that the number of the clamping parts 42 is not limited thereto and can be adjusted according to working conditions and usage requirements. Optionally, there are four clamping parts 42, one clamping part 42 is provided on each first support beam 411, and two clamping parts 42 are provided on the second support beam 412.

[0050] Optionally, the clamping portion 42 is a clamp; and / or, the clamping portion 42 is threadedly connected to the chassis 41 or connected by fasteners; and / or, along the height direction of the rock sample 50 to be processed, the clamping portion 42 clamps the middle part of the rock sample 50 to be processed.

[0051] In this embodiment, the clamping portion 42 clamps the middle portion of the rock sample 50 to be processed, which can effectively reduce the vibration and deformation of the rock sample 50 to be processed during the cutting process.

[0052] In this embodiment, the clamping part 42 is a clamp with threads, and the clamping part 42 is threadedly connected to the bottom plate 41. The clamping part 42 has threads and a nut locking device, which can firmly fix the rock sample 50 to be processed on the bottom plate 41.

[0053] In this embodiment, the driving device 60 includes a first guide rail, a second guide rail and a third guide rail. The first guide rail extends along the X direction, and the second guide rail is slidably arranged on the first guide rail and extends along the Y direction. The first guide rail is slidably arranged on the third guide rail, and the third guide rail extends along the Z direction. Among them, the chassis 41 is slidably arranged on the second guide rail. In this way, the above-mentioned arrangement improves the three-degree-of-freedom driving reliability of the driving device 60, and also makes the structure of the driving device 60 simpler, easier to process and realize, and reduces the processing cost and processing difficulty of the driving device 60.

[0054] Specifically, the above-mentioned three-dimensional guide rail system of the driving device 60 can realize the precise positioning and adjustment of the rock sample 50 to be processed, and is suitable for rock sample processing production lines with a high degree of automation, thereby improving processing efficiency and accuracy, and reducing errors and time waste caused by manual operation. It plays an important role in establishing a standardized process for rock sample processing and improving the efficiency of the production line and product quality.

[0055] In this embodiment, the coal rock dynamic sample processing equipment further includes a control module and a displacement sensor. The displacement sensor is electrically connected to the control module to detect the position of the chassis 41. And / or, the coal rock dynamic sample processing equipment further includes a pressure sensor, which is electrically connected to the control module to detect the pressure value in the cover 21. In this way, the displacement sensor and the pressure sensor can monitor the displacement and pressure in the processing process in real time, ensure the stability and safety of the processing process, provide high-quality sample preparation for coal rock dynamics research, and have significant practical value and broad application prospects.

[0056] Specifically, the introduction of the intelligent control system enables the coal rock dynamic sample processing equipment to monitor the position of the rock sample 50 to be processed and the pressure inside the cover 21 in real time. By automatically adjusting the cutting parameters and operating procedures, it effectively avoids abnormal situations in the cutting process, such as rock sample displacement, cutting line offset, etc., thereby ensuring the stability and safety of rock sample cutting.

[0057] In this embodiment, the cover body 21 is a double door with transparent glass on the front, which is used to take and place rock samples, test specimens and cut residual scraps, and is also a window for equipment inspection and maintenance; the two sides and the back are also transparent glass, which is convenient for observing the processing progress during processing; a fan and a dust collection bag 23 are set on one side, and the dust collection bag 23 is used for dust removal and dust collection.

[0058] The present application also provides a method for processing a coal rock mass dynamic sample. The method for processing a coal rock mass dynamic sample is applicable to the above-mentioned coal rock mass dynamic sample processing equipment. The method for processing a coal rock mass dynamic sample includes:

[0059] Step S1: Start the transverse cutting device of the coal rock dynamic sample processing equipment to cut the rock sample to be processed to a preset height;

[0060] Step S2: Start the longitudinal cutting device of the coal rock dynamic sample processing equipment to cut the rock sample to be processed at a preset height into one or more samples along a preset path.

[0061] In this embodiment, the coal rock dynamic sample processing method includes an end face cutting stage and a cylindrical surface cutting stage, which can achieve high-precision one-time forming of soft coal rock cylindrical samples, and can effectively solve the problem of changes in processing surface flatness caused by changes in the contact length between the cutting line and the rock sample during the cutting process.

[0062] Specifically, in the end face cutting stage, after the user inputs the control parameters, the automatic control system controls the driving device, and the driving device drives the chassis and the rock sample to be processed to move until the rock sample to be processed is lifted to the transverse cutting line position. The transverse cutting device rotates the cutting line at high speed under the control of the automatic control system, and the chassis moves with the rock sample to be processed and forms a relative motion with the cutting line to cut the upper end face of the rock sample to be processed. After the cutting is completed, the transverse cutting line stops rotating, and the chassis continues to lift the rock sample to be processed until it reaches the lower end face cutting position, so as to cut the lower end face of the rock sample to be processed through the transverse cutting device. At this point, the height of the rock sample to be processed is the height of the designed cylindrical sample, and the end face cutting stage is completed.

[0063] Cylindrical surface cutting stage: The automatic control system continues to run. According to the cylindrical sample diameter and the one-time processing quantity set by the user, the program automatically plans the running trajectory and cutting sequence. The chassis moves with the rock sample to be processed to the vertical cutting line position. The vertical cutting line enters the avoidance port and rotates at high speed, moving relative to the rock sample to be processed according to the set trajectory until all cylindrical surfaces are cut.

[0064] In this embodiment, the coal rock mass dynamic sample processing method further includes step S3 after step S2:

[0065] After the longitudinal cutting device stops for amin, the fan of the coal rock dynamic sample processing equipment is controlled to start for dust removal; among them, 0.5min≤a≤1.5min.

[0066] In this embodiment, a=1 min. The fan 22 of the dust removal assembly 20 is interlocked with the wire cutting assembly. When the cutting wire starts to rotate, the fan 22 starts to run and stops running after the cutting wire stops rotating for 1 min.

[0067] It should be noted that the value of a is not limited thereto and can be adjusted according to working conditions and usage requirements. Optionally, a is 0.6 min, or 0.8 min, or 1.0 min, or 1.2 min, or 1.5 min.

[0068] Specifically, the coal rock mass dynamics sample processing method is as follows:

[0069] First, in order to reduce the impact of invisible cracks on the integrity of the final sample, the 30mm edge material around the on-site rock sample is discarded, and the effective size of the rock sample is 221mm×253mm×92mm (length×width×thickness). At the same time, the cutting spacing of adjacent samples is not less than 20mm. Therefore, it is determined that the rock sample can be processed into 9 cylindrical samples at one time, and the arrangement on the rock sample is 3*3. At the same time, the cutting position of the upper end face of the transverse cutting line is determined to be 30mm from the upper surface, and the cutting position of the lower end face is 80mm from the upper surface. The 50mm thick rock sample in the middle is retained to enter the next step of cylindrical surface cutting. The cylindrical surface cutting order is upper right-lower right-lower middle-upper middle-upper left-lower left. The above parameters are input into the automatic control system, and the automatic control system will automatically plan the motion trajectory of the drive device so that the cutting line and the on-site rock sample move relative to each other.

[0070] Secondly, after confirming that the parameter settings are correct, close the equipment door and start the processing program.

[0071] Again, if Figure 3 and Figure 4As shown, the automatic control system controls the drive device to start, and the drive device drives the rock sample to be processed to move through the chassis, and lifts the rock sample to be processed to the horizontal cutting line position. The horizontal cutting line rotates at high speed under the control of the automatic control system, and the chassis moves the rock sample to be processed, forming a relative motion with the cutting line, and then cuts the upper end face position of the rock sample to be processed 30mm away from the upper surface. After the cutting is completed, the horizontal cutting line stops rotating, and the chassis continues to lift the rock sample to be processed by 50mm to the lower end face cutting position (80mm away from the upper surface) to cut the lower end face of the rock sample to be processed. At this point, the height of the on-site rock sample is retained as the height of the designed cylindrical sample, 50mm, and the end face cutting stage is completed. The drive device returns the rock sample to be processed to the starting position.

[0072] Once again, the automatic control program prompts that the end face cutting stage is completed, and the interlocking protection switch of the front door of the wire cutting wire assembly, the drive device and the dust removal assembly is closed to open the front door of the equipment, and then the upper end face waste and the lower end face waste that have been cut are cleaned, and then the coal rock sample to be retained for the next cutting stage is re-fixed on the on-site rock sample fixing and moving platform, and the door is closed again. Among them, it is confirmed on the automatic control system operation screen that the next stage of cutting work has begun, and the automatic control system continues to operate. Figure 3 As shown in the figure, according to the set diameter of the cylindrical sample of 50mm, 9 cylindrical samples are processed at one time according to the 3*3 arrangement, and the cylindrical surface cutting order is upper right-lower right-lower middle-upper middle-upper left-lower left. The program automatically plans the running trajectory and cutting order. The chassis moves and moves the rock sample to be processed to the vertical cutting line position. The vertical cutting line enters the avoidance port and rotates at high speed, moving relative to the rock sample according to the set trajectory, and completing the cutting of the cylindrical samples one by one. Afterwards, the drive device returns to the starting position with the rock sample.

[0073] Finally, after the online cutting line assembly stops running for 1 minute, the fan interlocking switch of the dust removal assembly linked to it is turned off, and the fan stops running. At this time, the double door can be opened to take out the processed cylindrical sample. Clean up the remaining rock sample waste, regularly maintain and maintain the equipment, and keep it ready for use.

[0074] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0075] The coal rock dynamic sample processing equipment includes a seat, a dust removal component, a wire cutting component and a bearing component. The dust removal component includes a cover body and a fan. The cover body is arranged on the seat body and has a through hole. The fan is arranged at the through hole. The wire cutting component is arranged on the cover body, and the wire cutting component includes a transverse cutting device and a longitudinal cutting device. The bearing component can be movably arranged on the seat body, and the bearing component includes a chassis and a clamping part arranged on the chassis. The chassis is used to carry the rock sample to be processed, and the clamping part is used to clamp the rock sample to be processed. In this way, through the cooperation of the transverse cutting device and the longitudinal cutting device, the rock sample to be processed can be accurately cut into samples of the required size, which greatly improves the accuracy and efficiency of sample processing, thereby solving the problem that the method of processing coal rock dynamic samples in the prior art increases the labor intensity of the staff and the processing efficiency is low. At the same time, the above-mentioned setting of the dust removal component avoids dust flying during the processing process, improves the working environment, and protects the health of the operator.

[0076] Compared with the coal rock dynamic sample processing method in the prior art, the coal rock dynamic sample processing equipment in the present application has a vertically arranged double cutting wire assembly, combined with an optimized design of a one-time forming method of cutting the front end face to a preset height and then cutting the cylindrical surface to a designed diameter. It can achieve high-precision processing of open-pit mined soft coal rock cylindrical samples of different diameters and heights without the need for secondary grinding, and also avoids direct exposure of operators to high concentrations of dust.

[0077] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0078] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0079] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal rock mass dynamic sample processing device, characterized in that: include: base(10); A dust removal assembly (20) comprises a cover body (21) and a fan (22), wherein the cover body (21) is disposed on the base body (10) and has a through hole, and the fan (22) is disposed at the through hole; A wire cutting assembly is arranged on the cover body (21), and the wire cutting assembly comprises a transverse cutting device (31) and a longitudinal cutting device (32); A bearing assembly (40) is movably arranged on the base body (10), the bearing assembly (40) comprising a chassis (41) and a clamping portion (42) arranged on the chassis (41), the chassis (41) being used to bear a rock sample (50) to be processed, and the clamping portion (42) being used to clamp the rock sample (50) to be processed.

2. The coal rock mass dynamic sample processing equipment according to claim 1 is characterized in that: The coal rock mass dynamics sample processing equipment also includes: A driving device (60), the driving device (60) being drivingly connected to the chassis (41) to drive the chassis (41) to drive the clamping portion (42) and the rock sample (50) to be processed to move in at least one of a first direction, a second direction and a third direction; The first direction is arranged at a first angle with the second direction, and the third direction is arranged at a second angle with a plane formed by the first direction and the second direction.

3. The coal rock mass dynamic sample processing equipment according to claim 1 is characterized in that: The transverse cutting device (31) comprises two first wire cutting mechanisms (311) arranged opposite to each other, and the cutting direction of each first wire cutting mechanism (311) is arranged parallel to the cross section of the rock sample (50) to be processed; and / or the longitudinal cutting device (32) comprises two second wire cutting mechanisms (321) arranged opposite to each other, and the cutting direction of each second wire cutting mechanism (321) is arranged parallel to the longitudinal section of the rock sample (50) to be processed.

4. The coal rock mass dynamic sample processing equipment according to claim 1, characterized in that: The dust removal component (20) also includes: A dust collection bag (23) is arranged at the through hole to collect dust sucked by the fan (22).

5. The coal rock mass dynamic sample processing equipment according to claim 1, characterized in that: The chassis (41) comprises: Two first support beams (411) arranged opposite to each other; a second supporting beam (412), wherein the two first supporting beams (411) are connected via the second supporting beam (412); The two first support beams (411) and the second support beams (412) are surrounded to form an avoidance opening (413), and the avoidance opening (413) is used to avoid the cutting line of the longitudinal cutting device (32); there are at least three clamping parts (42), and each of the first support beams (411) is provided with at least one clamping part (42), and each of the second support beams (412) is provided with at least one clamping part (42).

6. The coal rock mass dynamic sample processing equipment according to claim 1, characterized in that: The clamping portion (42) is a clamp; and / or, The clamping portion (42) is connected to the chassis (41) by threading or by fasteners; and / or, Along the height direction of the rock sample (50) to be processed, the clamping portion (42) clamps the middle portion of the rock sample (50) to be processed.

7. The coal rock mass dynamic sample processing equipment according to claim 2, characterized in that: The driving device (60) comprises: A first guide rail extending along the X direction; A second guide rail, slidably disposed on the first guide rail and extending along the Y direction; a third guide rail, on which the first guide rail is movably arranged, and the third guide rail extends along the Z direction; Wherein, the chassis (41) is slidably arranged on the second guide rail.

8. The coal rock mass dynamic sample processing equipment according to claim 1, characterized in that: The coal rock mass dynamics sample processing equipment also includes: Control module; a displacement sensor, the displacement sensor being electrically connected to the control module for detecting the position of the chassis (41); and / or, A pressure sensor is electrically connected to the control module and is used to detect the pressure value inside the cover body (21).

9. A method for processing coal rock mass dynamic samples, characterized in that: The coal rock mass dynamic sample processing equipment is applicable to any one of claims 1 to 8, and the coal rock mass dynamic sample processing method comprises: Step S1: starting the transverse cutting device of the coal rock dynamic sample processing equipment to cut the rock sample to be processed to a preset height; Step S2: starting the longitudinal cutting device of the coal rock dynamic sample processing equipment to cut the rock sample to be processed at a preset height into one or more samples along a preset path.

10. The method for processing coal rock mass dynamic samples according to claim 9, characterized in that: The coal rock mass dynamic sample processing method further comprises a step S3 located after the step S2: After the longitudinal cutting device stops for amin, the fan of the coal rock dynamic sample processing equipment is controlled to start and remove dust; wherein 0.5min≤a≤1.5min.

Images