An ore sampling device for mining

Abstract

The application provides an ore sampling device for mining, comprising: a machine shell, which is provided with a working groove at the bottom for mining; and a general control assembly, which is arranged at the top of the working groove and is used for carving operation. The present disclosure belongs to the technical field of mining. The ore sampling efficiency and accuracy are improved by the hammering unit for knocking the mine wall while the cutting saw is cutting the mine wall, so that the ore debris directly falls into the working groove of the machine shell, and the sampling accuracy is not affected by the flying debris.

Description

Technical Field

[0001] This disclosure pertains to the technical field of mining, specifically relating to an ore sampling device for mining. Background Technology

[0002] Ore sampling is a crucial step in obtaining representative ore samples during geological exploration, mining production, and mineral processing. Its purpose is to analyze and test these samples to understand the ore's quality (grade), mineral composition, structure, physicochemical properties, and other information, providing a basis for resource assessment, mine design, production management, mineral processing technology development, and economic evaluation.

[0003] In existing technologies, the groove method is the most classic rock and mineral sampling method in geological exploration and mining production. It involves carving a continuous groove of a certain specification (width, depth, and length) on the ore outcrop or tunnel wall to collect all the debris as a sample. However, because it requires carving a continuous groove on the tunnel wall, powder from brittle minerals (such as coal and graphite) will be scattered during the carving process. The loss of fine particles leads to an overestimation of grade, which affects the accuracy of ore sampling. Summary of the Invention

[0004] To address the above problems, the present invention provides an ore sampling device for mining, comprising:

[0005] The casing has a working slot at the bottom for mining.

[0006] The main control assembly, located at the top of the working slot, is used for carving operations;

[0007] The chisel assembly, which is set in the working groove, is used to chisel the mine wall. The chisel assembly includes a cutting saw, a drum, a hammer unit, and an excitation shaft. The outer circumferential wall of the drum is arranged in a ring array with multiple hammer units for impacting the mine wall. The middle of the drum is provided with an excitation shaft for activating the hammer units. The two ends of the excitation shaft are fixedly connected to sealing discs. The two sealing discs are rotatably connected to the two sides of the drum, so that a closed space is formed inside the drum. The middle of the excitation shaft is rotatably connected to a rotating shaft. The rotating shaft is connected to the drum through a speed change unit. The two ends of the rotating shaft extend out of the drum and are fixedly connected to the cutting saw.

[0008] The feed assembly, located at the top of the working slot, is used to drive the cutting assembly to feed.

[0009] Furthermore, the feeding assembly includes a screw, a slider, a slide table, and a connecting unit. There are two screws, which are respectively connected to the top two sides of the working groove. A slide table is slidably mounted on the screw, and a slider threadedly connected to the screw is connected inside the slide table. The bottom of the slide table is connected to the sealing disc through the connecting unit.

[0010] Furthermore, the connecting unit includes a connecting sleeve, a connecting rod, a limiting platform, and a supporting spring. The connecting sleeve is fixedly connected to the bottom of the slide table, and the connecting rod is slidably connected to the bottom of the connecting sleeve. The bottom of the connecting rod is fixedly connected to the sealing disc, and the limiting platform is fixedly connected to the outer wall of the connecting rod. A supporting spring is fixedly connected between the limiting platform and the connecting sleeve.

[0011] Furthermore, the bottom of the slide table is provided with a mounting groove, and a stop block for abutting the slider is slidably connected in the mounting groove. The bottom of the mounting groove is connected to the connecting sleeve through an air hole, and a solenoid valve for depressurization is connected to the side wall of the slide table.

[0012] Furthermore, the hammering unit includes a hammering block and an impact member. The hammering block is fixedly connected to the inner wall of the drum. The side of the hammering block near the drum has a protruding tip that extends out of the drum. The side of the hammering block near the excitation shaft is connected to the impact member. The side of the hammering block near the excitation shaft has a groove. The sidewall of the groove is recessed on the side near the opening to form a step for supporting the impact member.

[0013] Furthermore, the impact component includes a sliding sleeve, an impact block, and a pressure block. The sliding sleeve is slidably connected to the outside of the hammer block. A compression spring is connected between the sliding sleeve and the hammer block. The impact block is rotatably connected inside the sliding sleeve. The side of the impact block away from the sliding sleeve abuts against the step. The side of the sliding sleeve near the excitation shaft is connected to the pressure block that contacts the excitation shaft through a compression spring. The spring constant of the compression spring is greater than that of the compression spring. The sidewalls of the pressure block are fixedly connected to pressure plates for actuating the impact block on both sides. The side of the pressure plate away from the pressure block extends into the sliding sleeve.

[0014] Furthermore, the side wall of the tip is provided with an air passage 1 that communicates with the groove, and a one-way valve 1 is connected to the opening of the air passage 1. The sliding sleeve is provided with a circular hole that communicates with the groove, and a one-way valve 2 is fixedly connected inside the circular hole.

[0015] Furthermore, the bottom of the excitation shaft has a protrusion forming an excitation part for abutting the pressure block, and the top of the excitation shaft has an air passage two, which passes through the sealing disc and extends into the connecting rod, so that the closed space inside the roller is connected to the closed space inside the connecting sleeve.

[0016] Furthermore, a linear driver is fixedly connected to the side wall of one of the slides, a support plate is fixedly connected to the output shaft of the linear driver, a drive motor is fixedly connected to the bottom of the support plate, a connecting block is fixedly connected to the output shaft of the drive motor, and a slot for inserting the connecting block is provided at the end of the rotating shaft.

[0017] In summary, the present invention has at least one of the following beneficial technical effects:

[0018] 1. This ore sampling equipment for mining, through the setting of the chisel component, can break the ore wall with the hammer unit while the cutting saw is cutting the ore wall, so that the ore debris falls directly into the working groove of the machine casing, which can avoid the debris flying around and affecting the sampling accuracy, thereby improving the ore sampling efficiency and the ore sampling accuracy.

[0019] 2. This ore sampling equipment for mining can automatically activate its feed component after the hammer unit comes into contact with the ore wall, allowing the feed component to automatically advance with the chisel component. This ensures the ore sampling effect while reducing the operation difficulty of the ore sampling equipment, thereby further improving the efficiency of ore sampling.

[0020] 3. This ore sampling equipment for mining has an excitation shaft with an excitation part at the bottom. When the hammer unit moves to the bottom of the excitation part, it is automatically excited, thereby ensuring that the tip of the hammer block impacts the ore wall after contacting it, effectively improving the crushing effect of the ore wall. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an ore sampling device for mining according to the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of an ore sampling device for mining according to the present invention.

[0024] Figure 3 This is a schematic diagram of the chisel component and feed component in an ore sampling device for mining according to the present invention.

[0025] Figure 4 This is a schematic diagram of the state when the cutting saw is replaced in an ore sampling device for mining according to the present invention.

[0026] Figure 5 This is a schematic diagram of the feeding component in an ore sampling device for mining according to the present invention.

[0027] Figure 6 This is a three-dimensional structural schematic diagram of the chisel component in a mining ore sampling device according to the present invention, viewed from the right side.

[0028] Figure 7This is a three-dimensional structural schematic diagram of the front view sectional view of the chisel component in an ore sampling device for mining according to the present invention.

[0029] Figure 8 This is a schematic diagram of the hammering unit in an ore sampling device for mining according to the present invention.

[0030] Figure 9 This is a schematic diagram of the speed change unit in an ore sampling device for mining according to the present invention.

[0031] Figure 10 This is a schematic diagram of the second air passage in an ore sampling device for mining according to the present invention.

[0032] Figure 11 This is a schematic diagram of the structure of a hammer block in an ore sampling device for mining according to the present invention.

[0033] Figure 12 This is a schematic diagram of the structure of the sliding sleeve and impact block in an ore sampling device for mining according to the present invention.

[0034] The reference numerals in the attached figures are as follows:

[0035] 1. Machine housing; 2. Main control assembly; 3. Engraving assembly; 31. Cutting saw; 32. Roller; 33. Hammering unit; 331. Hammering block; 332. Impact component; 3321. Sliding sleeve; 3322. Impact block; 3323. Pressure block; 34. Excitation shaft; 4. Feed assembly; 41. Screw; 42. Slider; 43. Slide table; 44. Connecting unit; 441. Connecting sleeve; 442. Connecting rod; 443. Limiting platform; 444. Support spring; 5. Working groove; 6. Sealing 7. Sealing plate; 8. Transmission unit; 9. Shaft; 10. Mounting slot; 11. Abutment block; 12. Air hole; 13. Solenoid valve; 14. Tip; 15. Groove; 16. Step; 17. Compression spring one; 18. Compression spring two; 19. Pressure plate; 20. Air passage one; 21. One-way valve one; 22. Round hole; 23. One-way valve two; 24. Excitation part; 25. Air passage two; 26. Linear actuator; 27. Support plate; 28. Drive motor; 29. ​​Connecting plug; 20. Slot. Detailed Implementation

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0040] See also Figure 1 - Figure 12 As shown, according to an embodiment of the present invention, an ore sampling device for mining is provided, comprising:

[0041] The casing 1 has a working slot 5 for mining at its bottom;

[0042] The main control assembly 2 is located at the top of the working slot 5 and is used for carving operations;

[0043] The chisel assembly 3 is set in the working groove 5 and is used to chisel the mine wall. The chisel assembly 3 includes a cutting saw 31, a drum 32, a hammering unit 33 and an excitation shaft 34. The outer peripheral wall of the drum 32 is arranged in a ring array with multiple hammering units 33 for impacting the mine wall. The middle part of the drum 32 is provided with an excitation shaft 34 for activating the hammering units 33. The two ends of the excitation shaft 34 are fixedly connected to sealing discs 6. The two sealing discs 6 are rotatably connected to the two sides of the drum 32 respectively, so that a closed space is formed inside the drum 32. The middle part of the excitation shaft 34 is rotatably connected to a rotating shaft 8. The rotating shaft 8 is connected to the drum 32 through a speed change unit 7. The two ends of the rotating shaft 8 extend out of the drum 32 and are fixedly connected to the cutting saw 31.

[0044] The feed assembly 4, which is located at the top of the working slot 5, is used to drive the cutting assembly 3 to feed.

[0045] In this embodiment, since it is necessary to carve continuous grooves on the tunnel wall, during the carving process, powder from brittle minerals (such as coal and graphite) will splash when the grooves are carved, and the loss of fine particles will lead to an overestimation of grade, which will affect the accuracy of ore sampling.

[0046] Therefore, observe Figure 1 and Figure 2 It can be observed that by setting up a casing 1, a working groove 5 is opened at the bottom of the casing 1. The working groove 5 is connected to a chisel component 3 through a feed component 4. At the same time, a master control component 2 is connected to the top of the working groove 5 to control the operation of the feed component 4 and the chisel component 3. It can be used to control the feed component 4 to drive the chisel component 3 to move, so as to chisel out a continuous groove to collect ore samples. At this time, the chiseled debris will fall into the working groove 5, which can avoid the powder from brittle minerals (such as coal and graphite) from splashing during the chiseling process, and the loss of fine particles leading to overestimation of grade, thereby effectively improving the accuracy of ore sampling.

[0047] However, during conventional chiseling sampling, the fracture points of the groove wall are uncontrollable, leading to unevenness in the groove wall and causing the actual cross-sectional area to exceed the design value, thus affecting the accuracy of ore sampling. Therefore, observation... Figure 6 It can be seen that the chiseling component 3 includes a cutting saw 31, and a drive motor 27 for driving the cutting saw 31 to rotate is provided in the working groove 5. When a continuous groove needs to be chiseled, the drive motor 27 only needs to be started. Then the drive motor 27 will drive the rotating shaft 8 to run, thereby causing the cutting saw 31, which is fixedly connected to both ends of the rotating shaft 8, to rotate and cut a continuous groove on the ore wall. When the hammer unit 33 strikes the ore wall, the fracture length of the ore will be affected by the groove, thereby avoiding unevenness of the groove wall, ensuring that the theoretical volume of the ore sampling is equal to the actual volume, and improving the accuracy of ore sampling.

[0048] Sampling is usually done after grooving, therefore... Figure 6 and Figure 7 As can be seen, the chisel assembly 3 also integrates a roller 32, a hammer unit 33, and an excitation shaft 34. The outer peripheral wall of the roller 32 is arranged in a ring array with multiple hammer units 33 for impacting the ore wall. The middle part of the roller 32 is provided with an excitation shaft 34 for exciting the hammer units 33. When the roller 32 rotates, it carries the hammer units 33 through the excitation shaft 34. Then the excitation shaft 34 will excite the hammer units 33 to impact the ore wall, which can crush the ore and collect it in the working trough 5, thereby improving the ore sampling efficiency.

[0049] Because ore crushing inevitably produces debris, this debris can enter the drum 32 and jam the gap of the hammer unit 33, interfering with the operation of the hammer unit 33. Therefore, in Figure 6 As can be seen, sealing discs 6 are fixedly connected to both ends of the excitation shaft 34. The two sealing discs 6 are rotatably connected to both sides of the drum 32, forming a closed space inside the drum 32. This can be used to protect the hammering unit 33 and prevent debris from entering the drum 32 and affecting the service life of the hammering unit 33.

[0050] Since there are multiple hammering units 33, only the hammering unit 33 that is in contact with the mine wall can effectively break the mine wall at any given time. Therefore, the timing of the activation of the hammering unit 33 is very important. Figure 7 It can be seen that the hammering unit 33 includes a hammering block 331 and an impact member 332. The hammering block 331 is fixedly connected to the inner wall of the drum 32. The hammering block 331 has a protruding tip 13 extending out of the drum 32 on the side near the drum 32. The impact member 332 is connected to the side of the hammering block 331 near the excitation shaft 34. The bottom of the excitation shaft 34 has a protruding excitation part 23 for abutting the impact member 332. When the drum 32 rotates and the hammering unit 33 comes into contact with the ore wall, the hammering unit 33 will approach the excitation part 23. At this time, the impact member 332 will abut against the excitation part 23 and impact the hammering block 331, so that the tip 13 of the hammering block 331 applies a relatively concentrated impact force to the ore wall, which can effectively improve the crushing effect of the ore wall, thereby improving the ore sampling efficiency.

[0051] In order for the impactor 332 to stably impact the hammer block 331, it is necessary to ensure that the impactor 332 automatically resets after impacting the hammer block 331. Therefore, observation is required. Figure 11 It can be seen that the hammer block 331 has a groove 14 on the side near the excitation shaft 34. The side wall of the groove 14 is recessed near the opening to form a step 15 for supporting the impact member 332, which is then combined with... Figure 8It can be seen that the impact component 332 includes a sliding sleeve 3321, an impact block 3322, and a pressure block 3323. The sliding sleeve 3321 is slidably connected to the outside of the hammer block 331. A compression spring 16 is connected between the sliding sleeve 3321 and the hammer block 331. The impact block 3322 is rotatably connected inside the sliding sleeve 3321. The side of the impact block 3322 away from the sliding sleeve 3321 abuts against the step 15. The side of the sliding sleeve 3321 near the excitation shaft 34 is connected to the pressure block 3323 in contact with the excitation shaft 34 through a compression spring 2 17. The spring constant of the compression spring 2 17 is greater than that of the spring constant of the compression spring 16. The sidewall of the pressure block 3323 is fixedly connected to both sides of the impact block 3322 with pressure plates 18 for actuating the impact block 3322. The side of the pressure plate 18 away from the pressure block 3323 extends into the sliding sleeve 3321.

[0052] At this time, when the pressure block 3323 contacts the excitation part 23, as the roller 32 continues to rotate, the pressure of the pressure block 3323 will increase, thereby reducing the distance between the pressure block 3323 and the sliding sleeve 3321, causing the compression spring 17 to compress and store energy. Until the pressure plate 18 of the pressure block 3323 contacts the impact block 3322, as the pressure block 3323 continues to approach, the force of the pressure plate 18 against the impact block 3322 increases. Figure 8 As can be seen, the surface of step 15 is inclined. Under the guidance of the inclined surface, the contact position between the impact block 3322 and the surface of step 15 will move downward until the end of the impact block 3322 separates from step 15. After the impact block 3322 loses support, the unsupported impact block 3322 and the sliding sleeve 3321 will be pushed down by the compression spring 17, so that the impact block 3322 impacts the hammer block 331, causing the tip 13 to crush the ore wall and insert into the ore wall. Then, as the roller 32 rotates, it applies a lateral force to the ore wall to pry open the ore, thereby obtaining ore samples and ensuring the stability of mining.

[0053] As the roller 32 continues to roll, the pressure block 3323 will move away from the excitation section 23. At this time, the compression spring 17 will rebound and push the pressure block 3323 back to its original position. The sliding sleeve 3321 will also be pushed back to its original position by the compression spring 16. At this time, in an uncompressed state, the impact block 3322 will tilt due to gravity after resetting, until the pressure block 3323 approaches the excitation section 23 again, and the impact block 3322 will... Figure 8 The state is shown to be in contact with the side wall of the groove 14. Then, after the pressure block 3323 abuts against the excitation part 23, the sliding sleeve 3321 moves, so that the impact block 3322 abuts against the step 15 again, which can ensure the stable operation of the hammering unit 33.

[0054] Finally, since the cutting saw 31 and the hammering unit 33 operate on two different workflows, independently controlling the simultaneous operation of the two processes would increase the difficulty of using the ore sampling equipment. Figure 6It can also be seen that a rotating shaft 8 is rotatably connected to the middle of the excitation shaft 34. The rotating shaft 8 is connected to the drum 32 through the speed change unit 7. Both ends of the rotating shaft 8 extend out of the drum 32 and are fixedly connected to the cutting saw 31. Then look at... Figure 9 It can be seen that the speed change unit consists of transmission gears A, B, C, and D and a planetary gear set. The outer gear ring of the planetary gear set is fixedly connected to the inner wall of the drum 32, while the sun gear is rotatably connected to the excitation shaft 34. Gear A is fixedly connected to the side of the sun gear near the sealing disk 6. Gear B meshes with the top of gear A. Gear C is fixedly connected to the end of the rotating shaft 8 that extends out of the drum 32. Gear D meshes with gear C. Gear B and gear D are connected by a connecting shaft, and a rotating sealing ring is provided at the connection position. When the rotating shaft 8 rotates, the drum 32 can be rotated through the speed change unit 7. After the speed reduction by transmission gears A, B, C, D and the planetary gear set, the rotation speed of the drum 32 is much lower than the rotation speed of the cutting saw 31, which can reduce the load on the drive motor 27 and ensure the sealing performance inside the drum 32 while simultaneously cutting grooves and sampling on the mine wall.

[0055] The aforementioned main control component 2 integrates a feed control module, a cutting control module, a data management module, and other controllers. It also has an embedded battery to provide power and ensure the normal operation of the ore sampling equipment. The control module integrates servo motor / stepper motor drivers and is equipped with displacement sensors (such as grating rulers / encoders) for real-time position feedback. The cutting control module integrates a frequency converter to adjust the speed of the drive motor 27, a pressure sensor to monitor the cutting load, and overload protection circuits. These are all relatively mature electronic equipment control technologies, which will not be elaborated further.

[0056] In a further preferred embodiment of the invention, such as Figure 2 and Figure 3 As shown, the feeding assembly 4 includes a screw 41, a slider 42, a slide table 43, and a connecting unit 44. There are two screws 41, which are respectively connected to the top two sides of the working groove 5. The slide table 43 is slidably mounted on the screw 41. The slider 42, which is threadedly connected to the screw 41, is connected inside the slide table 43. The bottom of the slide table 43 is connected to the sealing plate 6 through the connecting unit 44. At this time, the screw 41 can be driven to rotate by a servo motor, so that the slider 42 moves along the length of the screw 41. The slide table 43 will move synchronously, thus carrying the roller 32 forward through the connecting unit for efficient ore sampling.

[0057] Since the roller 32 needs to move forward, the drive motor 27 that drives the cutting saw 31 naturally needs to move synchronously. Figure 3It can also be found that a linear driver 25 is fixedly connected to the side wall of one of the slides 43, and a support plate 26 is fixedly connected to the output shaft of the linear driver 25. A drive motor 27 is fixedly connected to the bottom of the support plate 26. At this time, the drive motor 27 that drives the cutting saw 31 will naturally move synchronously, which can ensure the stability of ore sampling.

[0058] Since the cutting saw 31 will inevitably wear down when cutting the mine wall, its cutting efficiency will eventually decrease, requiring replacement. Therefore, to prevent the drive motor 27 from interfering with the replacement of the cutting saw 31, a connecting block 28 is fixedly connected to the output shaft of the drive motor 27. The end of the rotating shaft 8 has a slot 29 for inserting the connecting block 28. This allows for easy replacement of the cutting saw 31. Figure 4 As shown in the diagram, the output shaft of the linear driver 25 extends and pushes the support plate 26 away from the drum 32. At this time, the drive motor 27, which is fixedly connected to the support plate 26, will also move away from the drum 32, thereby causing the connecting block 28 to disengage from the slot 29. At this time, the cutting saw 31 can be replaced normally, ensuring the long-term stable use of the ore sampling equipment.

[0059] Since ore crushing inevitably produces debris, a protective sleeve is fitted on the outside of the screw 41 to protect its operational stability and thus ensure the feeding stability of the chisel assembly 3. This is a common method of protecting screws and will not be elaborated further.

[0060] In a further preferred embodiment of the present invention, since the cutting saw 31 needs to cut into the ore wall and the hammering unit 33 on the outer wall of the roller 32 needs to hammer the ore wall, the chisel assembly 3 will come into contact with the ore wall before the housing 1 comes into contact with the ore wall, which will cause the housing 1 to be unable to fit with the ore wall. At this time, the gap between the housing 1 and the ore wall will cause some of the mined debris to leak out, affecting the ore sampling accuracy.

[0061] Therefore, observe Figure 5 It can be seen that the connecting unit 44 includes a connecting sleeve 441, a connecting rod 442, a limiting platform 443, and a support spring 444. The connecting sleeve 441 is fixedly connected to the bottom of the slide table 43. The connecting rod 442 is slidably connected to the bottom of the connecting sleeve 441. The bottom of the connecting rod 442 is fixedly connected to the sealing plate 6. The limiting platform 443 is fixedly connected to the outer wall of the connecting rod 442. The support spring 444 is fixedly connected between the limiting platform 443 and the connecting sleeve 441. When the machine housing 1 contacts the mine wall, the cutting saw 31 will be squeezed, thereby causing the sealing plate 6 to squeeze the connecting rod 442 and press the connecting rod 442 into the connecting sleeve 441 to ensure that the machine housing 1 can fit against the mine wall and prevent the leakage of ore fragments.

[0062] Because of the support spring 444, the limiting platform 443 is always supported, which causes the connecting rod 442 to push the sealing plate 6 closer to the ore wall, so that the cutting saw 31 always keeps in contact with the ore wall. At this time, the drive motor 27 runs, and the cutting saw 31 will gradually cut into the ore wall. Then the hammering unit 33 on the drum 32 will come into contact with the ore wall, which can ensure the stability of ore sampling.

[0063] In a further preferred embodiment of the present invention, in order to ensure the effectiveness of ore sampling, the feeding component 4 needs to operate after the cutting saw 31 cuts into the ore wall and the hammering unit 33 comes into contact with the ore wall, so as to ensure sample accuracy. Therefore, observation... Figure 5 It can be seen that the bottom of the slide table 43 has a mounting groove 9, and a stop block 10 for abutting the slider 42 is slidably connected in the mounting groove 9. The bottom of the mounting groove 9 is connected to the connecting sleeve 441 through the air hole 11. Then look at Figure 11 It can be observed that the side wall of the tip 13 has an air passage 19 communicating with the groove 14, and a one-way valve 20 is connected to the opening of the air passage 19. Looking further... Figure 12 It can be seen that the sliding sleeve 3321 has a circular hole 21 communicating with the groove 14, and a one-way valve 22 is fixedly connected inside the circular hole 21. Finally, it is combined with... Figure 10 It can be seen that the top of the excitation shaft 34 has an air passage 24. The air passage 24 passes through the sealing disc 6 and extends into the connecting rod 442, so that the closed space inside the roller 32 is connected to the closed space inside the connecting sleeve 441.

[0064] At this time, when the drum 32 rotates, the excitation part 23 will move down against the sliding sleeve 3321, thereby reducing the space between the sliding sleeve 3321 and the hammer block 331, allowing air to enter the drum 32 through the one-way valve 22, and then enter the connecting sleeve 441 through the air passage 24 at the top of the excitation shaft 34; after the sliding sleeve 3321 returns to its original position, the space between the sliding sleeve 3321 and the hammer block 331 increases, generating negative pressure. At this time, air will be drawn into the air passage 19 through the one-way valve 20, and finally fill the groove 14. By repeating this process, air can be continuously pumped into the closed space, increasing the air pressure between the connecting sleeve 441 and the connecting rod 442.

[0065] When the cutting saw 31 cuts into the ore wall until the tip 13 contacts the ore wall, the connecting rod 442 can no longer extend the connecting sleeve 441. At this time, the gradually increasing air pressure will push the abutment block 10 to move upward, so that the abutment block 10 contacts the slider 42, thereby temporarily fixing the slider 42 and the slide table 43 to prevent the slider 42 from rotating with the screw 41. At this time, the screw 41 continues to rotate, which can push the slide table 43 to move forward slowly, so that the cutting saw 31 cuts a continuous boundary groove on the ore wall. At the same time, the hammer unit 33 will continuously break the ore wall to ensure the stability of ore sampling.

[0066] After the ore sampling is completed, in order to ensure the stable use of the feeding component 4 and the chiseling component 3, a solenoid valve 12 for pressure relief is connected to the side wall of the slide table 43. Therefore, after the ore sampling is completed, the solenoid valve 12 can be opened by controlling the main control component 2 to release the air in the sealed space, thereby ensuring that the feeding component 4 and the chiseling component 3 can return to their initial state so that the subsequent operation process can proceed stably.

[0067] The implementation principle of the above embodiment is as follows: the machine casing 1 is attached to the mine wall by the handle, and then the drive motor 27 is started to run the cutting saw 31. When the cutting saw 31 cuts into the mine wall, the roller 32 will rotate under the transmission of the speed change unit 7, so that the hammering unit 33 continuously impacts the mine wall, which can be used to obtain ore fragments.

[0068] After the hammering unit 33 comes into contact with the ore wall, the feed assembly 4 will drive the slide table 43 to move, thereby taking the cutting saw 31 forward and making the cutting saw 31 cut a boundary groove on the surface of the ore wall. At this time, the continuous operation of the hammering unit 33 can break the ore within the boundary. Finally, the broken ore will fall into the working groove 5, improving the sampling efficiency and sampling accuracy of the ore.

[0069] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0070] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An ore sampling device for use in mining, characterised in that, Include: The shell (1) is provided with a working groove (5) for mining at the bottom; The total control assembly (2) is arranged at the top of the working groove (5) for carving operation; The carving assembly (3) is arranged in the working groove (5) for carving the mine wall, the carving assembly (3) comprises a cutting saw (31), a roller (32), a hammering unit (33) and an excitation shaft (34), the outer peripheral wall of the roller (32) is annularly arranged with a plurality of hammering units (33) for impacting the mine wall, the middle part of the roller (32) is provided with an excitation shaft (34) for exciting the hammering unit (33), both ends of the excitation shaft (34) are fixedly connected with sealing discs (6), the two sealing discs (6) are rotatably connected on both sides of the roller (32) respectively, so that a closed space is formed in the roller (32), the middle part of the excitation shaft (34) is rotatably connected with a rotating shaft (8), the rotating shaft (8) is connected with the roller (32) through a speed changing unit (7), both ends of the rotating shaft (8) extend out of the roller (32) and are fixedly connected with the cutting saw (31); The feeding assembly (4) is arranged at the top of the working groove (5) for driving the carving assembly (3) to feed; The feeding assembly (4) comprises two screw rods (41), a sliding block (42), a sliding table (43) and a connecting unit (44), the two screw rods (41) are connected on both sides of the top of the working groove (5) respectively, the sliding table (43) is slidably arranged on the screw rod (41), the sliding block (42) is connected in the sliding table (43) and is threadedly connected with the screw rod (41), the bottom of the sliding table (43) is connected with the sealing disc (6) through the connecting unit (44); The connecting unit (44) comprises a connecting sleeve (441), a connecting rod (442), a limiting table (443) and a supporting spring (444), the connecting sleeve (441) is fixedly connected at the bottom of the sliding table (43), the connecting rod (442) is slidably connected at the bottom of the connecting sleeve (441), the bottom of the connecting rod (442) is fixedly connected with the sealing disc (6), the limiting table (443) is fixedly connected with the outer wall of the connecting rod (442), and the supporting spring (444) is fixedly connected between the limiting table (443) and the connecting sleeve (441); The hammering unit (33) comprises a hammering block (331) and an impact piece (332), the hammering block (331) is fixedly connected with the inner wall of the roller (32), the side of the hammering block (331) close to the roller (32) is protruded to form a sharp end (13) extending out of the roller (32), the side of the hammering block (331) close to the excitation shaft (34) is connected with the impact piece (332), the side of the hammering block (331) close to the excitation shaft (34) is provided with a groove (14), and the side wall of the groove (14) is recessed to form a step (15) for supporting the impact piece (332). The impact piece (332) comprises a sliding sleeve (3321), an impact block (3322) and a pressing block (3323), the sliding sleeve (3321) is slidingly connected to the outside of the hammer block (331), a compression spring (16) is connected between the sliding sleeve (3321) and the hammer block (331), the impact block (3322) is rotatably connected in the sliding sleeve (3321), the side of the impact block (3322) away from the sliding sleeve (3321) abuts against the step (15), the side of the sliding sleeve (3321) close to the trigger shaft (34) is connected with the pressing block (3323) in contact with the trigger shaft (34) through a compression spring (17), the stiffness coefficient of the compression spring (17) is greater than that of the compression spring (16), the side wall of the pressing block (3323) is fixedly connected with the pressing plate (18) on both sides of the impact block (3322) for driving the impact block (3322), and the side of the pressing plate (18) away from the pressing block (3323) extends into the sliding sleeve (3321).

2. An ore sampling device for use in mining as claimed in claim 1, characterised in that, The bottom of the sliding table (43) is provided with a mounting groove (9), a resisting block (10) for abutting against the sliding block (42) is slidingly connected in the mounting groove (9), the bottom of the mounting groove (9) is communicated with the connecting sleeve (441) through an air hole (11), and the side wall of the sliding table (43) is connected with an electromagnetic valve (12) for pressure relief.

3. An ore sampling device for use in mining as claimed in claim 2, characterised in that, The side wall of the pointed end (13) is provided with an air channel (19) communicated with the groove (14), the opening position of the air channel (19) is connected with a one-way valve (20), the sliding sleeve (3321) is provided with a circular hole (21) communicated with the groove (14), and the circular hole (21) is fixedly connected with a one-way valve (22).

4. An ore sampling device for use in mining as claimed in claim 3, characterised in that, The bottom of the trigger shaft (34) is provided with a trigger portion (23) for abutting against the pressing block (3323), the top of the trigger shaft (34) is provided with an air channel (24), the air channel (24) penetrates through the sealing disc (6) and extends into the connecting rod (442), so that the closed space in the roller (32) is communicated with the closed space in the connecting sleeve (441).

5. An ore sampling device for use in mining as claimed in claim 4, characterised in that, The side wall of one of the sliding tables (43) is fixedly connected with a linear driver (25), the output shaft of the linear driver (25) is fixedly connected with a supporting plate (26), the bottom of the supporting plate (26) is fixedly connected with a driving motor (27), the output shaft of the driving motor (27) is fixedly connected with a connecting plug block (28), and the end of the rotating shaft (8) is provided with a plug groove (29) for inserting the connecting plug block (28).

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