A grinding sample preparation device for mineral product detection and use method

Abstract

The present invention provides a grinding sample preparation device for mineral product detection and a use method, which relates to the technical field of mineral product detection and includes a driving chassis component and a grinding component. The present invention independently designs the grinding component, which has an inner cavity and an outer cavity. The inner cavity is used to hold the mineral sample. A grid portion is provided between the inner cavity and the outer cavity to allow the mineral sample that meets the particle size requirements to pass through. A mineral sample stirring component is provided inside the inner cavity. The bottom end of the mineral sample stirring component has a spline shaft section that cooperates with the inner spline hole. When in use, multiple grinding components can be prepared, each grinding component is used to grind a sample of one of the ores. Multiple grinding components can be ground synchronously, thereby realizing rapid grinding and sampling of multiple mineral products, greatly improving the port detection efficiency, and after the grinding component is ground, only the unground slag needs to be dumped out, and there is no need to transfer the mineral sample, thereby reducing the workload of port detection personnel.

Description

Technical Field

[0001] The invention relates to the technical field of mineral product detection, and in particular to a grinding sample preparation device for mineral product detection and a use method thereof. Background Art

[0002] Mineral samples are usually composed of particles of different sizes and shapes. Uneven samples may cause deviations in test results. Grinding can make all particles in the sample reach a certain fineness, thereby ensuring the uniformity of the sample, which is very important for subsequent chemical analysis and physical testing.

[0003] At present, when conducting component detection on ore samples, it is required to grind the ore samples into fine particles that meet the requirements; the amount and types of ore entering and leaving the port area every day are large, and the traditional mineral product grinding and sampling device has low grinding efficiency and cannot grind and sample multiple ore products at the same time, which greatly increases the workload of port inspection personnel. For this reason, the present invention provides a grinding and sampling device for mineral product detection and a use method. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a grinding and sampling device for mineral product testing and a method of use, which solves the problem that traditional mineral product grinding and sampling devices have low grinding efficiency and cannot grind and sample multiple ore products at the same time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A grinding sample preparation device for mineral product detection, comprising:

[0007] A drive chassis assembly having at least one actively rotating internal spline hole;

[0008] A grinding assembly, wherein the grinding assembly has an inner cavity and an outer cavity, the inner cavity is used to hold the ore sample, a grid portion is provided between the inner cavity and the outer cavity to allow the ore sample that meets the particle size requirements to pass through, an ore sample stirring assembly is provided inside the inner cavity, and the bottom end of the ore sample stirring assembly has a spline shaft section that matches the inner spline hole;

[0009] A sub-frame assembly, the sub-frame assembly is fixedly mounted on the top of the driving chassis assembly, and the sub-frame assembly has mounting positions equal in number and corresponding in position to the internal spline holes;

[0010] Each installation position of the sub-frame assembly is fixedly connected with a stabilizing assembly, and the stabilizing assembly is used to stabilize the grinding assembly.

[0011] Further preferably, the driving chassis assembly comprises:

[0012] Top cover shell;

[0013] A speed regulating motor, wherein the speed regulating motor is fixedly mounted at the top center of the top cover shell, wherein the output shaft of the speed regulating motor passes downward through the top surface of the top cover shell, and a first gear is fixedly mounted on the output shaft of the speed regulating motor and located on the inner side of the top cover shell;

[0014] A bottom cover plate, the bottom cover plate is fixedly mounted on the bottom end of the top cover shell;

[0015] A short shaft, the bottom end of which is rotatably mounted on the bottom cover plate, a second gear is fixedly mounted on the short shaft, and the second gear is meshed with the first gear for transmission;

[0016] The top end of the short shaft member is provided with a thickened section, the top end of the thickened section is provided with an inner spline hole, and a through hole is provided at the top of the top cover shell and at a position corresponding to the inner spline hole.

[0017] Further preferably, the top cover shell comprises:

[0018] The outer annular portion has a flange portion fixedly connected outwardly at its bottom end, a central disc portion fixedly connected inwardly at its top end, and a plurality of through holes arranged in a circular array at the top of the outer annular portion.

[0019] Further preferably, the sub-frame assembly comprises:

[0020] A vertical column, the bottom end of which is fixedly connected to a driving chassis assembly, and the top end of which is fixedly connected to a polygonal rack having a plurality of corners distributed in a circular array.

[0021] Further preferably, the center of the polygonal disc rack shrinks downward to form a central skeleton, and the central skeleton is fixedly connected to the top of the vertical column.

[0022] Further preferably, the stabilizing assembly comprises:

[0023] A threaded connection seat, the side surface of which is fixedly connected to the corner of the polygonal disc rack;

[0024] The threaded rod is threadably matched with the threaded connection seat, and a rotary pressure head is rotatably mounted on the bottom end of the threaded rod, and a hand wheel is fixedly mounted on the top end of the threaded rod.

[0025] Further preferably, the grinding assembly comprises:

[0026] A cylindrical shell, wherein the interior of the cylindrical shell has an inner cavity, and the outer side surface of the cylindrical shell is provided with a grid portion;

[0027] The outer side of the cylindrical shell is fixedly connected to a fixed outer shell above the grille portion, the bottom end of the fixed outer shell is threadedly connected to a detachable outer shell, the bottom end of the detachable outer shell has a center hole, and the center hole at the bottom end of the detachable outer shell extends upward to form an annular head, an annular cap is sleeved on the annular head, and the outer side of the cylindrical shell, the inner side of the fixed outer shell, and the inner side of the detachable outer shell form an outer cavity;

[0028] The ore sample stirring assembly comprises:

[0029] A central shaft, a central frame is fixedly connected to the inner side of the cylindrical shell, the central shaft is rotatably connected to the central frame, the central shaft is rotatably mounted to the bottom end of the cylindrical shell through a bearing, the central shaft includes an optical shaft section and a spline shaft section, the bottom end of the optical shaft section is fixedly connected to the top end of the spline shaft section;

[0030] An impeller is fixedly mounted on the central shaft.

[0031] Further preferably, the impeller comprises:

[0032] A cylindrical portion, the cylindrical portion is fixedly connected to the central axis, the bottom end of the cylindrical portion is fixedly connected to a conical portion, the outer side of the cylindrical portion is fixedly connected to strip blades, the outer side of the conical portion is fixedly connected to transition blades, the top of the transition blade is fixedly connected to the bottom of the strip blade, and the strip blades and transition blades are both arranged in a ring shape in multiple numbers.

[0033] Further preferably, the top port of the cylindrical shell is provided with an annular cover.

[0034] A method for using a grinding sample preparation device for mineral product detection, using the grinding sample preparation device for mineral product detection, comprising the following steps:

[0035] S1, adding the ore sample after crushing pretreatment into the inner cavity of the grinding component;

[0036] S2. Install the grinding assembly on the driving chassis assembly, the inner spline hole of the driving chassis assembly is in driving cooperation with the spline shaft section of the grinding assembly, and adjust the stabilizing assembly so that the bottom of the grinding assembly squeezes the outer wall of the driving chassis assembly;

[0037] S3, the inner spline hole is driven to rotate actively by the driving chassis assembly to drive the ore sample stirring assembly to rotate, and the ore sample stirring assembly drives the ore sample after the crushing pretreatment to be ground at the grid part, and the ore sample that meets the particle size requirements obtained by grinding passes through the grid part and enters the outer cavity of the grinding assembly for storage;

[0038] S4. After a predetermined amount of mineral sample is accumulated in the outer cavity of the grinding assembly, the grinding assembly is removed, the mineral sample in the inner cavity of the grinding assembly is poured out, and the entire grinding assembly is sent to the laboratory for testing.

[0039] The present invention provides a grinding sample preparation device and a method for using the same for mineral product detection. The device has the following beneficial effects:

[0040] 1. The present invention designs a driving chassis assembly having at least one actively rotating inner spline hole, and independently designs a grinding assembly having an inner cavity and an outer cavity. The inner cavity is used to hold ore samples. A grid portion is provided between the inner cavity and the outer cavity to allow ore samples that meet the particle size requirements to pass through. An ore sample stirring assembly is provided inside the inner cavity. The bottom end of the ore sample stirring assembly has a spline shaft section that cooperates with the inner spline hole. When in use, multiple grinding assemblies can be prepared, each grinding assembly is used to grind a sample of one of the ores, and multiple grinding assemblies can be ground synchronously, thereby realizing rapid grinding and sampling of multiple ore products, greatly improving the port detection efficiency, and after the grinding assembly is ground, only the unground slag needs to be dumped out, and the ore samples that meet the particle size requirements remain in the outer cavity of the grinding assembly, and there is no need to transfer the ore samples, thereby reducing the workload of port detection personnel; each grinding assembly can be used to sample a ore sample once, so there is no need to clean the grinding assembly on site, further improving the efficiency of port detection of ore samples.

[0041] 2. The present invention designs a stabilizing component, which is used to press the grinding component downward after the grinding component is installed on the driving chassis component, to ensure that the spline shaft segment is stably inserted into the inner spline hole, thereby driving the ore sample stirring component to rotate, and allowing the bottom of the grinding component to squeeze and contact the top of the driving chassis component, thereby preventing the cylindrical shell from rotating during the grinding process and affecting the grinding process.

[0042] 3. The present invention further designs a driving chassis assembly, which includes a top cover shell, a speed regulating motor, a short shaft, a second gear, and a first gear. The speed regulating motor drives the first gear to rotate, and the first gear synchronously drives multiple second gears, thereby driving multiple short shafts to rotate synchronously. Each short shaft corresponds to an internal spline hole, thereby realizing synchronous rotation of multiple internal spline holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A three-dimensional diagram of a grinding sample preparation device for mineral product detection proposed by the present invention;

[0044] Figure 2 This is a front view of a grinding sample preparation device for mineral product detection proposed by the present invention;

[0045] Figure 3 A top view of a grinding sample preparation device for mineral product detection proposed by the present invention;

[0046] Figure 4 for Figure 3 Section view of the section line at AA;

[0047] Figure 5 This is a bottom perspective stereogram of a grinding sample preparation device for mineral product detection proposed by the present invention;

[0048] Figure 6 A three-dimensional schematic diagram of a grinding assembly of a grinding sample preparation device for mineral product detection proposed by the present invention;

[0049] Figure 7 This is a three-dimensional diagram of a detachable housing of a grinding sample preparation device for mineral product detection proposed by the present invention after being disassembled;

[0050] Figure 8 A three-dimensional schematic diagram of a stirring assembly of a grinding sample preparation device for mineral product detection proposed by the present invention;

[0051] Fig. 9 This is a three-dimensional schematic diagram of a grinding assembly of a grinding sample preparation device for mineral product detection proposed by the present invention after installation;

[0052] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle.

[0053] Among them, 1. driving chassis assembly; 1a. inner spline hole; 101. top cover shell; 101a. flange portion; 101b. outer annular portion; 101c. center disc portion; 101d. through hole; 102. speed regulating motor; 103. first gear; 104. bottom cover disc; 105. short shaft member; 106. second gear; 2. sub-frame assembly; 201. vertical column; 202. polygonal disc frame; 202a. central skeleton; 3. stabilizing assembly; 301. threaded connection seat; 302. threaded rod; 303, rotary pressure head; 304, hand wheel; 4, grinding assembly; 401, cylindrical shell; 402, grille part; 403, fixed outer shell; 404, detachable outer shell; 404a, annular head; 404b, annular cap; 405, central shaft; 405a, optical axis section; 405b, spline shaft section; 406, annular cover; 407, impeller; 407a, cylindrical part; 407b, conical part; 407c, strip blades; 407d, transition blades; 408, center frame. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0055] like Figure 1-Figure 10 As shown, an embodiment of the present invention provides a grinding sample preparation device for mineral product detection, including: a driving chassis component 1, a grinding component 4, a sub-frame component 2 and a stabilizing component 3.

[0056] The driving chassis assembly 1 has at least one actively rotating internal spline hole 1a, such as Figure 1 As shown in the figure, 6 groups of inner spline holes 1a are arranged, and the 6 groups of inner spline holes 1a are distributed in a circular array. According to the detection requirements, a number of grinding components 4 can be provided. The grinding components 4 can be installed correspondingly at the inner spline holes 1a of the driving chassis component 1. The grinding component 4 has an inner cavity and an outer cavity. The inner cavity is used to hold the ore sample (generally, the ore sample is initially crushed by knocking, and the ore sample after initial crushing is put into the inner cavity of the grinding component 4). A grid portion 402 is provided between the inner cavity and the outer cavity to allow the ore sample that meets the particle size requirements to pass through. A ore sample stirring component is provided inside the inner cavity. The bottom end of the ore sample stirring component has a spline shaft section 405b that matches the inner spline hole 1a. The ore sample stirring component is relatively As the inner cavity shell of the grinding component 4 rotates, the ore sample stirring component drives the ore sample inside the inner cavity to be ground on the grid portion 402, and the ore sample produced by grinding and meeting the particle size requirements enters the outer cavity through the grid portion 402. The sub-frame component 2 is fixedly installed on the top of the driving chassis component 1, and the sub-frame component 2 has mounting positions that are equal in number and corresponding in position to the internal spline holes 1a. Each mounting position of the sub-frame component 2 is fixedly connected with a stabilizing component 3, which is used to stabilize the grinding component 4. The stabilizing component 3 is located directly above the internal spline hole 1a. After the grinding component 4 is installed with the driving chassis component 1, the stabilizing component 3 presses down the grinding component 4 to stabilize the grinding component 4.

[0057] When in use, the ore sample after crushing pretreatment (crushing) is added into the inner cavity of the grinding assembly 4, and then the grinding assembly 4 is installed on the driving chassis assembly 1, the inner spline hole 1a of the driving chassis assembly 1 is matched with the spline shaft section 405b of the grinding assembly 4, and the stabilizing assembly 3 is adjusted and pressed downward so that the bottom of the grinding assembly 4 squeezes the outer wall of the driving chassis assembly 1, that is, the shell part of the grinding assembly 4 is fixed by the stabilizing assembly 3.

[0058] In one embodiment, the driving chassis assembly 1 includes: a top cover shell 101 , a speed regulating motor 102 , a first gear 103 , a bottom cover plate 104 , a short shaft 105 and a second gear 106 .

[0059] The opening of the top cover shell 101 faces downward, and the speed regulating motor 102 is fixedly installed at the top center position of the top cover shell 101. The output shaft of the speed regulating motor 102 passes through the top surface of the top cover shell 101 downward, and the output shaft of the speed regulating motor 102 is rotatably connected to the top cover shell 101 through a bearing. A first gear 103 is fixedly installed on the output shaft of the speed regulating motor 102 and located on the inner side of the top cover shell 101. The speed regulating motor 102 is used to directly drive the first gear 103. The bottom cover plate 104 is fixedly installed at the bottom end of the top cover shell 101, and a space is formed between the bottom cover plate 104 and the top cover shell 101. The first gear 103 and the second gear 103 are connected to the top cover shell 101. The wheel 106 is located in the above-mentioned space. When in use, lubricating oil can be injected into the space formed between the bottom cover plate 104 and the top cover shell 101. The bottom end of the short shaft member 105 is rotatably installed with the bottom cover plate 104. The end bearing is fixedly installed on the bottom cover plate 104. The short shaft member 105 cooperates with the inner ring of the end bearing. The second gear 106 is fixedly installed on the short shaft member 105. The second gear 106 is meshed with the first gear 103 for transmission. The top end of the short shaft member 105 has a thickened section, and the top end of the thickened section is provided with an internal spline hole 1a. A through hole 101d is provided at the top of the top cover shell 101 and at a position corresponding to the internal spline hole 1a.

[0060] When in use, the spline shaft section 405b of the grinding assembly 4 is inserted into the inner spline hole 1a, and the speed regulating motor 102 directly drives the first gear 103 to rotate, and the first gear 103 is meshed with the second gear 106 for transmission, thereby driving the second gear 106 to rotate, and the second gear 106 drives the short shaft member 105 fixed thereto to rotate, that is, the inner spline hole 1a rotates, thereby driving the spline shaft section 405b and the ore sample stirring assembly to rotate.

[0061] In one embodiment, the top cover shell 101 includes: an outer annular portion 101b, a flange portion 101a, a central disc portion 101c and a plurality of through holes 101d.

[0062] The bottom end of the outer annular portion 101b is fixedly connected to the outside with a flange portion 101a, and the flange portion 101a serves to connect the bottom cover plate 104 (the bottom cover plate 104 and the flange portion 101a are fixedly installed by bolts / screws). The top end of the outer annular portion 101b is fixedly connected to the inside with a center disk portion 101c, and the center disk portion 101c is used to fix the speed regulating motor 102. A plurality of through holes 101d are opened on the top of the outer annular portion 101b, and the plurality of through holes 101d are distributed in a circular array.

[0063] In one embodiment, the sub-frame assembly 2 includes: a vertical column 201, the bottom end of the vertical column 201 is fixedly connected to the drive chassis assembly 1, and the top end of the vertical column 201 is fixedly connected to a polygonal rack 202, the polygonal rack 202 is a "hexagonal" shape, and the polygonal rack 202 has multiple corners distributed in a circular array.

[0064] The center of the polygonal frame 202 shrinks downward to form a central frame 202 a . The central frame 202 a is fixedly connected to the top of the vertical column 201 . The central frame 202 a plays a good supporting role for the polygonal frame 202 .

[0065] In one embodiment, the stabilizing assembly 3 includes: a threaded connection seat 301 , a threaded rod 302 , a rotating pressing head 303 and a hand wheel 304 .

[0066] The side of the threaded connection seat 301 is fixedly connected to the corner of the polygonal disc frame 202, the threaded rod 302 is threadedly matched with the threaded connection seat 301, and a rotating pressure head 303 is rotatably installed at the bottom end of the threaded rod 302, and a hand wheel 304 is fixedly installed at the top end of the threaded rod 302.

[0067] The user drives the threaded rod 302 to rotate by operating the hand wheel 304. The threaded rod 302 is threadedly matched with the threaded connection seat 301, so that the threaded rod 302 moves up and down relative to the threaded connection seat 301. Based on the above, the user can control the threaded rod 302 and the rotating pressure head 303 to move up and down, and can press the rotating pressure head 303 on the top of the central shaft 405. The rotating pressure head 303 can rotate with the central shaft 405 and can keep the grinding assembly 4 downward against the top of the driving chassis assembly 1.

[0068] In one embodiment, the grinding assembly 4 includes: a cylindrical shell 401 , a grille portion 402 , a fixed outer shell 403 , and a detachable outer shell 404 .

[0069] The interior of the cylindrical shell 401 has an inner cavity, the top end of the cylindrical shell 401 is open and the bottom end is closed, the outer side of the cylindrical shell 401 is provided with a grille portion 402, the grille portion 402 is composed of a plurality of bar-shaped gear rods distributed in a circular array, the bar-shaped gear rods have serrations on the side facing the inner side of the cylindrical shell 401, and there is a gap between two adjacent bar-shaped gear rods, the outer side of the cylindrical shell 401 and located above the grille portion 402 is fixedly connected with a fixed outer shell 403, the bottom end of the fixed outer shell 403 is threadedly connected with a removable outer shell 404, the bottom end of the removable outer shell 404 has a center hole, and the center hole at the bottom end of the removable outer shell 404 extends upward to form an annular head 404a, the annular head 404a is sleeved with an annular cap 404b, the annular cap 404b is made of rubber material, the outer side of the cylindrical shell 401, the inner side of the fixed outer shell 403, and the inner side of the removable outer shell 404 form an outer cavity.

[0070] When the removable outer shell 404 is installed on the cylindrical shell 401 (the removable outer shell 404 is threadedly installed with the fixed outer shell 403), the annular head 404a is against the outer side of the bottom end of the cylindrical shell 401, the annular cap 404b is compressed, and the annular head 404a is sealed with the outer side of the bottom end of the cylindrical shell 401.

[0071] The ore sample stirring assembly includes: a central shaft 405 and an impeller 407 .

[0072] A center frame 408 is fixedly connected to the inner side of the cylindrical shell 401, and a center axis 405 is rotatably connected to the center frame 408. The center axis 405 and the bottom end of the cylindrical shell 401 are rotatably mounted via a bearing. The center axis 405 includes an optical axis section 405a and a spline shaft section 405b. The bottom end of the optical axis section 405a is fixedly connected to the top end of the spline shaft section 405b, and the impeller 407 is fixedly mounted on the center axis 405.

[0073] The central shaft 405 rotates synchronously with the impeller 407 , and the impeller 407 pushes the ore sample inside the cylindrical housing 401 to move, and the ore sample contacts and rubs against the grid portion 402 to form a grinding structure.

[0074] In one embodiment, the impeller 407 includes: a cylindrical portion 407a, a conical portion 407b, strip blades 407c and transition blades 407d.

[0075] The cylindrical portion 407a is fixedly connected to the central axis 405, the bottom end of the cylindrical portion 407a is fixedly connected to the conical portion 407b, the outer side of the cylindrical portion 407a is fixedly connected to the strip blade 407c, the outer side of the conical portion 407b is fixedly connected to the transition blade 407d, the top of the transition blade 407d is fixedly connected to the bottom of the strip blade 407c, and multiple strip blades 407c and transition blades 407d are arranged in a ring.

[0076] like Figure 6 As shown in FIG. 4 , the conical portion 407 b can guide the mineral sample to flow toward the outside, that is, guide the mineral sample to the position where the grid portion 402 is located, thereby achieving a grinding effect.

[0077] In one embodiment, the top port of the cylindrical housing 401 is provided with an annular cover 406 . Example

[0078] A method for using a grinding sample preparation device for mineral product detection, using the grinding sample preparation device for mineral product detection in embodiment 1, comprising the following steps:

[0079] S1. Add the ore sample after crushing and pretreatment into the inner cavity of the grinding component.

[0080] Generally, the ore sample is broken into small pieces by hammering and then placed into the inner cavity of the grinding assembly.

[0081] S2. Install the grinding assembly on the driving chassis assembly, the inner spline hole of the driving chassis assembly is matched with the spline shaft section of the grinding assembly, and adjust the stabilizing assembly so that the bottom of the grinding assembly squeezes the outer wall of the driving chassis assembly.

[0082] S3. The inner spline hole is driven to rotate actively by driving the chassis assembly to drive the ore sample stirring assembly to rotate. The ore sample stirring assembly drives the ore sample after crushing pretreatment to be ground at the grid part. The ore sample that meets the particle size requirements obtained by grinding passes through the grid part and enters the outer cavity of the grinding assembly for storage.

[0083] S4. After a predetermined amount of mineral sample is accumulated in the outer cavity of the grinding assembly, the grinding assembly is removed, the mineral sample in the inner cavity of the grinding assembly is poured out, and the entire grinding assembly is sent to the laboratory for testing.

[0084] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding sample preparation device for mineral product detection, characterized in that: include: A driving chassis assembly (1), wherein the driving chassis assembly (1) has at least one actively rotating internal spline hole (1a); A grinding assembly (4), the grinding assembly (4) comprising an inner cavity and an outer cavity, the inner cavity being used to hold a mineral sample, a grid portion (402) being provided between the inner cavity and the outer cavity for allowing mineral samples meeting particle size requirements to pass through, a mineral sample stirring assembly being provided inside the inner cavity, the bottom end of the mineral sample stirring assembly comprising a spline shaft section (405b) cooperating with the inner spline hole (1a); A sub-frame assembly (2), the sub-frame assembly (2) being fixedly mounted on the top of the driving chassis assembly (1), and the sub-frame assembly (2) having mounting positions equal in number to the internal spline holes (1a) and corresponding in position; Each installation position of the sub-frame component (2) is fixedly connected to a stabilizing component (3), and the stabilizing component (3) is used to stabilize the grinding component (4); The driving chassis assembly (1) comprises: Top cover shell (101); A speed regulating motor (102), the speed regulating motor (102) being fixedly mounted at the top center position of the top cover shell (101), the output shaft of the speed regulating motor (102) penetrating downwardly through the top surface of the top cover shell (101), and a first gear (103) being fixedly mounted on the output shaft of the speed regulating motor (102) and located on the inner side of the top cover shell (101); A bottom cover plate (104), wherein the bottom cover plate (104) is fixedly mounted on the bottom end of the top cover shell (101); A short shaft member (105), the bottom end of the short shaft member (105) is rotatably mounted on the bottom cover plate (104), a second gear (106) is fixedly mounted on the short shaft member (105), and the second gear (106) is meshed with the first gear (103) for transmission; The top end of the short shaft (105) has a thickened section, the top end of the thickened section is provided with an inner spline hole (1a), and the top of the top cover shell (101) is provided with a through hole (101d) at a position corresponding to the inner spline hole (1a); The stabilizing component (3) comprises: A threaded connection seat (301), the side surface of which is fixedly connected to the corner of the polygonal disc frame (202); The threaded rod (302) is threadably matched with the threaded connection seat (301), and a rotary pressure head (303) is rotatably mounted on the bottom end of the threaded rod (302), and a hand wheel (304) is fixedly mounted on the top end of the threaded rod (302).

2. A grinding sample preparation device for mineral product detection according to claim 1, characterized in that: The top cover shell (101) comprises: An outer annular portion (101b), wherein the bottom end of the outer annular portion (101b) is fixedly connected outwardly with a flange portion (101a), the top end of the outer annular portion (101b) is fixedly connected inwardly with a central disc portion (101c), and a plurality of through holes (101d) are opened at the top of the outer annular portion (101b), and the plurality of through holes (101d) are distributed in a ring array.

3. A grinding sample preparation device for mineral product detection according to claim 1, characterized in that: The sub-frame assembly (2) comprises: A vertical column (201), the bottom end of the vertical column (201) is fixedly connected to the driving chassis assembly (1), the top end of the vertical column (201) is fixedly connected to a polygonal disc frame (202), and the polygonal disc frame (202) has a plurality of corners distributed in a circular array.

4. The grinding sample preparation device for mineral product detection according to claim 3 is characterized in that: The center of the polygonal rack (202) shrinks downward to form a central frame (202a), and the central frame (202a) is fixedly connected to the top of the vertical column (201).

5. The grinding sample preparation device for mineral product detection according to claim 1, characterized in that: The grinding assembly (4) comprises: A cylindrical shell (401), wherein the interior of the cylindrical shell (401) has an inner cavity, and the outer side surface of the cylindrical shell (401) is provided with a grid portion (402); A fixed outer shell (403) is fixedly connected to the outer side surface of the cylindrical shell (401) and located above the grille portion (402); a removable outer shell (404) is threadedly connected to the bottom end of the fixed outer shell (403); a center hole is provided at the bottom end of the removable outer shell (404); the center hole at the bottom end of the removable outer shell (404) extends upward to form an annular head (404a); an annular cap (404b) is sleeved on the annular head (404a); the outer side of the cylindrical shell (401), the inner side of the fixed outer shell (403), and the inner side of the removable outer shell (404) form an outer cavity; The ore sample stirring assembly comprises: A central shaft member (405), a central frame (408) is fixedly connected to the inner side of the cylindrical shell (401), the central shaft member (405) is rotatably connected to the central frame (408), the central shaft member (405) and the bottom end of the cylindrical shell (401) are rotatably mounted via a bearing, the central shaft member (405) comprises an optical axis section (405a) and a spline shaft section (405b), the bottom end of the optical axis section (405a) is fixedly connected to the top end of the spline shaft section (405b); An impeller (407), wherein the impeller (407) is fixedly mounted on the central shaft (405).

6. A grinding sample preparation device for mineral product detection according to claim 5, characterized in that: The impeller (407) comprises: A cylindrical portion (407a), the cylindrical portion (407a) is fixedly connected to the central axis (405), the bottom end of the cylindrical portion (407a) is fixedly connected to a conical portion (407b), the outer side of the cylindrical portion (407a) is fixedly connected to a strip blade (407c), the outer side of the conical portion (407b) is fixedly connected to a transition blade (407d), the top of the transition blade (407d) is fixedly connected to the bottom of the strip blade (407c), and the strip blades (407c) and the transition blades (407d) are both arranged in a ring shape in plurality.

7. The grinding sample preparation device for mineral product detection according to claim 6, characterized in that: An annular cover (406) is provided at the top end of the cylindrical shell (401).

8. A method for using a grinding sample preparation device for mineral product detection, characterized in that: The grinding sample preparation device for mineral product detection according to any one of claims 1 to 7 comprises the following steps: S1, adding the ore sample after crushing pretreatment into the inner cavity of the grinding component; S2. Install the grinding assembly on the driving chassis assembly, the inner spline hole of the driving chassis assembly is in driving cooperation with the spline shaft section of the grinding assembly, and adjust the stabilizing assembly so that the bottom of the grinding assembly squeezes the outer wall of the driving chassis assembly; S3, the inner spline hole is driven to rotate actively by the driving chassis assembly to drive the ore sample stirring assembly to rotate, and the ore sample stirring assembly drives the ore sample after the crushing pretreatment to be ground at the grid part, and the ore sample that meets the particle size requirements obtained by grinding passes through the grid part and enters the outer cavity of the grinding assembly for storage; S4. After a predetermined amount of mineral sample is accumulated in the outer cavity of the grinding assembly, the grinding assembly is removed, the mineral sample in the inner cavity of the grinding assembly is poured out, and the entire grinding assembly is sent to the laboratory for testing.

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