Ore grinding device and method of using the same

Abstract

The present invention relates to the technical field of ore grinding, and in particular to an ore grinding device and a method for using the same, comprising a base and a digital display control panel, wherein a first grinding wheel structure and a second grinding wheel structure are arranged on the base, a support structure for supporting the first grinding wheel structure and the second grinding wheel structure for rotation is arranged between the first grinding wheel structure and the second grinding wheel structure, and a gear transmission mechanism for realizing synchronous reverse rotation of the first grinding wheel structure and the second grinding wheel structure is arranged on the support structure, and through the coordination and cooperation between a screening drum structure, a rotating drive component, a digital display control panel, the first grinding wheel structure, the second grinding wheel structure and the gear transmission mechanism, the ore can be graded and ground from large to small, and the integration of elastic adaptive grinding and rigid grinding can be realized, and the raw materials can be repeatedly ground without omission, and screening can also be performed to avoid secondary rework.

Description

Technical Field

[0001] The present invention relates to the technical field of ore grinding, and in particular to an ore grinding device and a use method thereof. Background Art

[0002] Ore grinding is an important process that involves grinding raw ore particles into fine particles through mechanical force to improve the selectivity and extraction rate of the ore. The main purpose of ore grinding is to further reduce the particle size of the ore until it is ground into powder for subsequent sorting, smelting or other industrial applications. The uniform size of the ore particles after grinding, especially in some fine minerals, can greatly increase the content of fine particles in the grinding product, while reducing the steps required for regrinding, reducing the difficulty and time of extraction, thereby improving the economic benefits of the mine;

[0003] According to a Chinese patent document with a publication number of CN104069932B, an ore grinding device is disclosed, comprising: a first screw conveyor for conveying ore to be ground; a feeder having a feed port and a discharge port, the feed port being fluidly connected to the discharge end of the first screw conveyor; a second screw conveyor having an input end and an output end, the input end being fluidly connected to the discharge port of the feeder; a grinding dispersant conveying device, comprising a pump and a conveying pipeline for conveying the grinding dispersant, the conveying pipeline having a discharge port;

[0004] However, at present, when grinding ore, when the ore raw materials are ground by extrusion, the ore raw materials are mostly ground once, or repeatedly crushed. As a result, a small part of the ore is not ground sufficiently and is prone to omission. After subsequent screening, it needs to be re-grinded. In addition, the grinding of ore raw materials is a process from large to small, and a very large power is required in one step, which undoubtedly increases the cost. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The object of the present invention is to provide an ore grinding device and a method of using the same in order to solve the above problems.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention provides an ore grinding device, comprising a base and a digital display control panel, wherein a first grinding wheel structure and a second grinding wheel structure are arranged on the base, a support structure for supporting the first grinding wheel structure and the second grinding wheel structure to rotate is arranged between the first grinding wheel structure and the second grinding wheel structure, a gear transmission mechanism for realizing synchronous reverse rotation of the first grinding wheel structure and the second grinding wheel structure is arranged on the support structure, a screening drum structure capable of rotating and screening ore and feeding material toward the upper sides of the first grinding wheel structure and the second grinding wheel structure is arranged on the outer sides of the first grinding wheel structure and the second grinding wheel structure, an outer baffle cover is arranged on the outer side of the screening drum structure, a bracket capable of fixedly supporting the support structure is arranged on the base, and a rotary drive component for driving the screening drum structure to rotate is arranged on the bracket;

[0010] The first grinding wheel structure comprises a first wheel body, a third motor capable of driving the first wheel body to rotate is arranged inside the first wheel body, and one of the shaft ends of the first wheel body is connected to the gear transmission mechanism;

[0011] The second grinding wheel structure includes a second wheel body, an adjustment chamber is opened at the central axis of the second wheel body, an inner center rod is arranged in the adjustment chamber, both ends of the inner center rod are rotatably connected to the support structure and one end of the inner center rod is connected to the gear transmission mechanism, and the inner center rod and the inner wall of the adjustment chamber are respectively provided with an elastic buffer structure and a rigid support structure.

[0012] Furthermore, the support structure includes two support plates distributed in parallel, the first wheel body and the second wheel body are respectively rotatably arranged between the two support plates, and the opposite sides of the two support plates are respectively fixedly connected with support shafts through U-shaped frames, and the two support shafts are coaxial with each other and respectively pass through the screening cylinder structure and are fixedly connected to the bracket.

[0013] Furthermore, the output shaft end of the third motor is connected to one end of the output shaft, the other end of the output shaft passes through the first wheel body and is fixedly connected to one of the support plates, the output shaft is arranged at one of the central axis ends of the first wheel body, and one end of the first rotating shaft is fixedly connected to the other central axis end of the first wheel body, the other end of the first rotating shaft is rotatably connected to the other support plate and is connected to the second wheel body through a gear transmission mechanism, the outer contour dimensions of the first wheel body are consistent with the outer contour dimensions of the second wheel body, and the output end of the digital display control panel is electrically connected to the input end of the third motor.

[0014] Furthermore, the elastic buffer structure is provided with several groups evenly distributed along the axial direction of the second wheel body, each group includes more than three elastic buffer structures evenly distributed around the axis of the inner center rod, the elastic buffer structure includes a spring, both ends of the spring are respectively fixedly connected to the inner center rod and the inner wall of the adjustment chamber, a first positioning column for limiting the spring is fixedly provided on the inner center rod, an embedding hole for embedding the end of the spring is opened on the inner side wall of the adjustment chamber, and a second positioning column for limiting the spring is provided in the embedding hole.

[0015] Furthermore, the rigid support structure is provided with several groups evenly distributed along the axial direction of the second wheel body, each group includes three or more rigid support structures evenly distributed around the axis of the inner center rod, and the rigid support structure includes a hydraulic cylinder, which is fixedly arranged on the inner wall of the adjustment chamber, and the push rod head end of the hydraulic cylinder faces the inner center rod and is fixedly connected to a positioning cone head, and a positioning cone hole for cooperating with the positioning cone head is opened on the outer side of the inner center rod, and the output end of the digital display control panel is electrically connected to the input end of the hydraulic cylinder.

[0016] Furthermore, the two ends of the inner center rod are respectively connected to second rotating shafts, and the two second rotating shafts are rotatably connected to each other through bearings and two support plates respectively, one of the second rotating shafts is transmission-connected to the first wheel body through a gear transmission mechanism, and an inner ring is sleeved on the outer side of each second rotating shaft, and outer rings are respectively sleeved on the two ports of the adjustment chamber, and sealing belts are connected to each other between the corresponding inner rings and the outer rings, and the cross-sectional shape of the sealing belt is wavy.

[0017] Further, the screening drum structure comprises two conical casings, the outer shape of the conical casings is a truncated cone shape with one end wide and the other end narrow, the interior of the conical casings is hollow and one side of the wide end is open, the wide ends of the two conical casings are arranged opposite to each other and a screening drum is arranged between their edges, a plurality of evenly distributed material-dispensing blades are arranged on the inner side wall of the screening drum along its axis, the cross-sectional shape of the material-dispensing blades is C-shaped, the length dimension of the screening drum along its axial direction is smaller than the length dimension of the first wheel body along its axial direction, the narrow end of each conical casing is open and the inner side of the opening is connected to a support plate for relative rotation through a bearing, and the support plate is fixedly arranged on the support shaft;

[0018] The outer blocking cover includes an annular cover shell which is sleeved on the outside of the screen drum. The inner edges at both ends of the annular cover shell are formed with sealing pads for achieving abutment and sealing of the two ends of the screen drum. A lower discharge port is opened on the bottom side of the annular cover shell, and a lower hopper is arranged at the lower discharge port. The upper side of the annular cover shell is fixed on the bracket through a hanger.

[0019] Furthermore, the rotary drive assembly includes a first motor fixedly mounted on a bracket, the output shaft end of the first motor is connected to a gear, a gear ring is fixedly mounted on the outer side of the narrow end of one of the conical sleeves, the gear and the gear ring are meshed and connected with each other, and the output end of the digital display control panel is electrically connected to the input end of the first motor.

[0020] Furthermore, a feeding assembly for adding ore raw materials thereinto is provided on one side of the screening drum structure, and the feeding assembly includes a feeding pipe, one end of which passes through the support plate and extends into the conical casing, and a second motor is fixedly provided on the other end of the feeding pipe, and an output shaft end of the second motor is connected to one end of a rotating shaft, and the other end of the rotating shaft extends into the feeding pipe and is provided with a spiral transmission rib, a hopper is provided on the upper side of one end of the feeding pipe close to the second motor, and a support block for supporting the hopper is fixedly provided on the bracket, and the output end of the digital display control panel is electrically connected to the input end of the second motor.

[0021] In addition, the present invention also discloses a method for using the ore grinding device, comprising the following steps:

[0022] S1: The ore raw materials are added into the screening drum structure by the feeding assembly, and slide from the conical casing to between the material-discharging blades on the screening drum;

[0023] S2: The rotary drive assembly drives the conical casing and the screen drum to rotate, thereby driving the material-shifting blades to transport and shift the ore materials upward. When the material-shifting blades move the ore materials to the upper part between the first grinding wheel structure and the second grinding wheel structure, the ore materials slide down from the material-shifting blades;

[0024] S3: The push rod of the hydraulic cylinder drives the positioning cone head to separate from the positioning cone hole, and the output shaft of the third motor in the first wheel body rotates, thereby driving the output shaft rod to rotate, thereby driving the first wheel body to rotate relative to the support plate, and the rotation of the first wheel body drives the first rotating shaft to rotate, and the rotation of the first rotating shaft drives the second wheel body to rotate through the gear transmission mechanism. When the ore raw material falls between the first grinding wheel structure and the second grinding wheel structure, the first wheel body and the second wheel body rotate synchronously in opposite directions to press the ore raw material downward. Since the hydraulic cylinder releases the rigid support of the inner center rod, when the ore raw material is a large block, the spring can realize the adaptive elastic distance adjustment between the first grinding wheel structure and the second grinding wheel structure. During the grinding process, the distance between the positioning cone head and the positioning cone hole is gradually reduced until the hydraulic cylinder realizes the rigid support of the inner center rod, and then the rigid support of the inner center rod is released again, and the reciprocating cycle is repeated, thereby realizing the graded grinding of the ore;

[0025] S4: in step S3, when the rigid support of the inner center rod is loosened, the ore raw material is added into the screening cylinder structure by the feeding assembly, and the feeding is stopped before the rigid support of the inner center rod is achieved;

[0026] S5: In step S3, during the rotation of the screening drum structure, the screening drum can discharge the ground ore through the lower discharge port and the lower hopper.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Through the coordination and cooperation among the screening drum structure, the rotary drive assembly, the digital display control panel, the first grinding wheel structure, the second grinding wheel structure and the gear transmission mechanism, the ore can be graded and ground from large to small, and the integration of elastic adaptive grinding and rigid grinding can be achieved. In addition, the raw materials can be repeatedly ground without omission and screening can be performed to avoid secondary rework.

[0030] 2. The outer shield can play a role of dust protection when the screening drum structure rotates to screen the ore raw materials, and can also collect the ore powder after grinding;

[0031] 3. The distance between the first wheel body and the second wheel body can be adaptively adjusted, so that graded grinding can be performed. Graded grinding reduces the torque demand for the third motor and can also cooperate with the screening drum structure to ensure the grinding effect under repeated grinding;

[0032] 4. When the rotary drive assembly drives the screening drum structure to rotate, the screening drum can screen the ore, and the material-discharging blades can transport the ore raw materials upward to between the upper sides of the first wheel body and the second wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0035] Figure 2 The present invention Figure 1 A right view structural diagram of ;

[0036] Figure 3 The present invention Figure 1 Schematic diagram of the three-dimensional structure;

[0037] Figure 4 The present invention Figure 1 AA cross-sectional structural diagram;

[0038] Figure 5 The present invention Figure 1 BB cross-sectional structure diagram;

[0039] Figure 6 The present invention Figure 2 Schematic diagram of CC cross-section structure;

[0040] Figure 7 The present invention Figure 1 Schematic diagram of the three-dimensional structure;

[0041] Figure 8 is a schematic diagram of a cross-sectional structure of a second grinding wheel structure of the present invention;

[0042] Fig. 9 The present invention Figure 5 Schematic diagram of the local enlarged structure at D.

[0043] The accompanying drawings are described as follows: 1. base; 101. bracket; 102. collection box; 102a. collection port; 103. electric telescopic rod; 2. screening cylinder structure; 201. conical casing; 202. support plate; 203. material-dispensing blade; 204. bearing; 205. screening cylinder; 3. outer baffle; 301. annular casing; 302. hanger; 303. lower discharge port; 304. lower hopper; 305. sealing pad; 4. rotary drive assembly; 401. first motor; 402. gear; 403. gear ring; 5. feeding assembly; 501. feeding pipe; 502. hopper; 503. second motor; 504. rotating shaft; 505. spiral transmission rib; 506. support Support block; 6. Digital display control panel; 7. Support structure; 701. Support plate; 702. U-shaped frame; 703. Support shaft; 8. First grinding wheel structure; 801. First wheel body; 802. Third motor; 803. First rotating shaft; 804. Output shaft; 9. Second grinding wheel structure; 901. Second wheel body; 902. Adjustment chamber; 903. Inner center rod; 904. Second rotating shaft; 905. Spring; 906. First positioning column; 907. Second positioning column; 908. Embedded hole; 909. Hydraulic cylinder; 910. Positioning cone head; 911. Positioning cone hole; 912. Sealing belt; 913. Inner sleeve ring; 914. Outer sleeve ring; 10. Gear transmission mechanism. DETAILED DESCRIPTION

[0044] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0045] See also Figure 1-Figure 9 As shown, the present invention provides an ore grinding device, including a base 1 and a digital display control panel 6, a first grinding wheel structure 8 and a second grinding wheel structure 9 are arranged above the base 1, a support structure 7 for supporting the rotation of the first grinding wheel structure 8 and the second grinding wheel structure 9 is arranged between the first grinding wheel structure 8 and the second grinding wheel structure 9, a bracket 101 capable of fixedly supporting the support structure 7 is arranged on the base 1, a gear transmission mechanism 10 for realizing synchronous reverse rotation of the first grinding wheel structure 8 and the second grinding wheel structure 9 is arranged on the support structure 7, when the first grinding wheel structure 8 and the second grinding wheel structure 9 rotate synchronously and reversely, the first grinding wheel structure 8 and the second grinding wheel structure 9 can realize downward grinding and crushing of ore raw materials, a screening drum structure 2 capable of rotating and screening ore and for feeding toward the upper sides of the first grinding wheel structure 8 and the second grinding wheel structure 9 is arranged on the outer side of the first grinding wheel structure 8 and the second grinding wheel structure 9, an outer baffle 3 is arranged on the outer side of the screening drum structure 2, and a rotating drive component 4 for driving the screening drum structure 2 to rotate is arranged on the bracket 101;

[0046] See the instruction manual Figure 5 As shown, the support structure 7 includes two support plates 701 distributed in parallel, the first wheel body 801 and the second wheel body 901 are respectively rotatably arranged between the two support plates 701, and the two support plates 701 are respectively fixedly connected with support shafts 703 on the opposite sides through U-shaped frames 702, wherein the U-shaped mouth of the U-shaped frame 702 and the support plate 701 are fixedly connected to each other, and the two support shafts 703 are coaxial with each other and respectively pass through the screening drum structure 2 and the bracket 101 to be fixedly connected to each other.

[0047] See the instruction manual Figure 4 and Figure 5As shown, the first grinding wheel structure 8 includes a first wheel body 801, and a third motor 802 capable of driving the first wheel body 801 to rotate is arranged inside the first wheel body 801, and one of the shaft ends of the first wheel body 801 is connected to the gear transmission mechanism 10; the output shaft end of the third motor 802 is connected to one end of an output shaft rod 804, and the other end of the output shaft rod 804 passes through the first wheel body 801 and is fixedly connected to one of the support plates 701, and the output shaft rod 804 is arranged at one of the central axis ends of the first wheel body 801, and one end of a first rotating shaft 803 is fixedly connected to the other central axis end of the first wheel body 801, and the other end of the first rotating shaft 803 is rotatably connected to the other support plate 701 and is connected to the second wheel body 901 through the gear transmission mechanism 10, and the outer contour dimensions of the first wheel body 801 are consistent with the outer contour dimensions of the second wheel body 901, and the output end of the digital display control panel 6 is electrically connected to the input end of the third motor 802. Through the above-mentioned specific structural design, the third motor 802 is arranged inside the first wheel body 801, which can avoid occupying the internal space of the screening drum structure 2 and avoid the interference of ore powder on the third motor 802 during grinding. When the output shaft of the third motor 802 rotates, the first wheel body 801 can be driven to rotate, and the second wheel body 901 can be synchronously driven through the gear transmission mechanism 10. In actual applications, the gear transmission mechanism 10 is provided with more than two even number gears, thereby realizing the synchronous reverse rotation of the first wheel body 801 and the second wheel body 901.

[0048] See the instruction manual Figure 4 , Figure 5 and Figure 8As shown, the second grinding wheel structure 9 includes a second wheel body 901, an adjustment chamber 902 is opened at the central axis of the second wheel body 901, an inner center rod 903 is arranged in the adjustment chamber 902, both ends of the inner center rod 903 are rotatably connected to the support structure 7 and one end thereof is connected to the gear transmission mechanism 10, and the inner center rod 903 and the inner side wall of the adjustment chamber 902 are respectively provided with an elastic buffer structure and a rigid support structure. The elastic buffer structure is provided with several groups evenly distributed along the axial direction of the second wheel body 901, and each group includes more than three elastic buffer structures evenly distributed around the axis of the inner center rod 903, and the elastic buffer structure includes a spring 905. The two ends of the spring 905 are respectively fixedly connected to the inner center rod 903 and the inner wall of the adjustment chamber 902, and a first positioning column 906 for limiting the spring 905 is fixedly provided on the inner center rod 903. An embedding hole 908 for embedding the end of the spring 905 is opened on the inner side wall of the adjustment chamber 902, and a second positioning column 907 for limiting the spring 905 is provided in the embedding hole 908. The rigid support structure is provided with several groups evenly distributed along the axial direction of the second wheel body 901, and each group includes more than three rigid support structures evenly distributed around the axis of the inner center rod 903. The rigid support structure includes a hydraulic cylinder 909, and the hydraulic cylinder 909 is fixedly arranged on the inner wall of the adjustment chamber 902. The push rod head end of the hydraulic cylinder 909 faces the inner center rod 903 and is fixedly connected to a positioning cone head 910. A positioning cone hole 911 for cooperating with the positioning cone head 910 is opened on the outer side of the inner center rod 903, and the output end of the digital display control panel 6 is electrically connected to the input end of the hydraulic cylinder 909. Through the above-mentioned specific structural design, when grinding the ore raw material, if the distance between the first wheel body 801 and the second wheel body 901 cannot be adaptively adjusted according to the block size of the ore raw material, the large pieces of ore raw material may slide relative to the first wheel body 801 and the second wheel body 901, and a very large output torque is required to fully grind the ore raw material. By cooperating with each other between the elastic buffer structure and the rigid support structure, when the ore raw material is large particles, the distance between the first wheel body 801 and the second wheel body 901 can be adaptively adjusted, thereby performing graded grinding. The graded grinding reduces the torque demand for the third motor 802 and can also ensure the grinding effect under repeated grinding.

[0049] See the instruction manual Figure 8As shown, the two ends of the inner center rod 903 are respectively connected with the second rotating shaft 904, and the two second rotating shafts 904 are respectively connected to the two support plates 701 through bearings, and one of the second rotating shafts 904 is connected to the first wheel body 801 through the gear transmission mechanism 10. The outer side of each second rotating shaft 904 is sleeved with an inner sleeve ring 913, and the two ports of the adjustment chamber 902 are respectively sleeved with an outer sleeve ring 914. The corresponding inner sleeve ring 913 and the outer sleeve ring 914 are connected to each other with a sealing belt 912, and the cross-sectional shape of the sealing belt 912 is wavy. Through the above-mentioned specific structural design, the sealing belt 912 can play a sealing role on the port of the adjustment chamber 902, and can adapt to the change in the relative distance between the inner center rod 903 and the inner wall of the adjustment chamber 902.

[0050] See the instruction manual Figure 4 , Figure 5 and Figure 6As shown, the screening drum structure 2 includes two conical casings 201. The outer shape of the conical casing 201 is a truncated cone with one end wide and the other end narrow. The interior of the conical casing 201 is hollow and one side of the wide end is open. The wide ends of the two conical casings 201 are arranged opposite to each other and a screening drum 205 is arranged between their edges. In practical applications, the conical casing 201 can realize the concentration of ore raw materials to the wide end in the middle position, thereby falling to the position of the screening drum 205. The inner side wall of the screening drum 205 is provided with a number of uniformly distributed along its axis. The cross-sectional shape of the material-discharging blades 203 is C-shaped, and the length dimension of the screen drum 205 along its axial direction is smaller than the length dimension of the first wheel body 801 along its axial direction. Through the above-mentioned specific structural design, it can be ensured that when the ore raw materials are transported to the first wheel body 801 and the second wheel body 901, the ore raw materials are always ensured to fall between the first wheel body 801 and the second wheel body 901, and the ore raw materials are fully ground by the first wheel body 801 and the second wheel body 901. The narrowness of each conical shell 201 The ends are open and the inner side of the opening is connected to a support plate 202 for relative rotation through a bearing 204, and the support plate 202 is fixedly arranged on the support shaft 703; the outer shield 3 includes an annular cover shell 301 sleeved on the outside of the screen drum 205, and the inner edges of both ends of the annular cover shell 301 are formed with sealing pads 305 for achieving abutment and sealing of the two ends of the screen drum 205, and a lower discharge port 303 is opened on the bottom side of the annular cover shell 301, and a lower hopper 304 is arranged at the lower discharge port 303, and the upper side of the annular cover shell 301 is connected to the support plate 202 through a hanger 30 2 is fixedly arranged on the bracket 101, a collecting box 102 is arranged on the upper side of the base 1, a collecting port 102a for docking with the lower port of the lower hopper 304 is opened on the upper side of the collecting box 102, and an electric telescopic rod 103 for driving the collecting box 102 to rise and fall is arranged on the base 1, when the electric telescopic rod 103 reaches the maximum stroke, the collecting port 102a and the lower port of the lower hopper 304 are docked with each other, when the electric telescopic rod 103 reaches the minimum stroke, the collecting port 102a and the lower port of the lower hopper 304 are separated from each other. Through the above-mentioned specific structural design, when the rotating drive component 4 drives the screening drum structure 2 to rotate, the screening drum 205 can realize the screening of ore, and the material-dispensing blades 203 can realize the upward transportation of the ore raw materials to between the upper sides of the first wheel body 801 and the second wheel body 901.

[0051] The rotary drive assembly 4 includes a first motor 401 fixedly mounted on a bracket 101, and a gear 402 is connected to the output shaft end of the first motor 401, a gear ring 403 is fixedly mounted on the outer side of the narrow end of one of the conical sleeves 201, and the gear 402 and the gear ring 403 are meshedly connected to each other, and the output end of the digital display control panel 6 is electrically connected to the input end of the first motor 401.

[0052] A feeding assembly 5 for adding ore raw materials therein is provided on one side of the screening drum structure 2, and the feeding assembly 5 includes a feeding pipe 501, one end of the feeding pipe 501 passes through the support plate 202 and extends into the conical casing 201, a second motor 503 is fixedly provided at the other end of the feeding pipe 501, an output shaft end of the second motor 503 is connected to one end of a rotating shaft 504, the other end of the rotating shaft 504 extends into the feeding pipe 501 and is provided with a spiral transmission rib 505, a hopper 502 is provided on the upper side of one end of the feeding pipe 501 close to the second motor 503, a support block 506 for supporting the hopper 502 is fixedly provided on the bracket 101, and the output end of the digital display control panel 6 is electrically connected to the input end of the second motor 503. Through the above-mentioned specific structural design, the feeding pipe 501 is provided on the support plate 202, which can avoid the feeding pipe 501 from interfering with the rotation of the conical casing 201.

[0053] Working principle of the present invention:

[0054] The ore raw material is added into the screening drum structure 2 by the feeding assembly 5, and slides from the conical casing 201 to between the material-dispensing blades 203 on the screening drum 205; the rotary drive assembly 4 drives the conical casing 201 and the screening drum 205 to rotate, thereby driving the material-dispensing blades 203 to transport and dispense the ore raw material upward, and when the material-dispensing blades 203 move the ore raw material to the upper part between the first grinding wheel structure 8 and the second grinding wheel structure 9, the ore raw material slides down from the material-dispensing blades 203;

[0055] The push rod of the hydraulic cylinder 909 drives the positioning cone head 910 to separate from the positioning cone hole 911, and the output shaft of the third motor 802 in the first wheel body 801 rotates, thereby driving the output shaft rod 804 to rotate, thereby driving the first wheel body 801 to rotate relative to the support plate 701, and the rotation of the first wheel body 801 drives the first rotating shaft 803 to rotate, and the rotation of the first rotating shaft 803 drives the second wheel body 901 to rotate through the gear transmission mechanism 10. When the ore material falls between the first grinding wheel structure 8 and the second grinding wheel structure 9, the first wheel body 801 and the second wheel body 901 rotate synchronously in opposite directions to press the ore material downward. Since the hydraulic cylinder 909 loosens the rigid support of the inner center rod 903, when the ore material is a large block, the spring 905 can It is capable of realizing adaptive elastic distance adjustment between the first grinding wheel structure 8 and the second grinding wheel structure 9. During the grinding process, the distance between the positioning cone head 910 and the positioning cone hole 911 is gradually reduced until the hydraulic cylinder 909 realizes the rigid support of the inner center rod 903, and then the rigid support of the inner center rod 903 is loosened again, and a reciprocating cycle is performed, thereby realizing graded grinding of the ore; when the rigid support of the inner center rod 903 is loosened, the feeding component 5 adds ore raw materials to the screening drum structure 2, and the feeding is stopped before the rigid support of the inner center rod 903 is realized; during the rotation of the screening drum structure 2, the screening drum 205 can screen and discharge the ground ore through the lower discharge port 303 and the lower hopper 304.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An ore grinding device, characterized in that: The invention comprises a base (1) and a digital display control panel (6), wherein a first grinding wheel structure (8) and a second grinding wheel structure (9) are arranged on the base (1), a support structure (7) for supporting the first grinding wheel structure (8) and the second grinding wheel structure (9) for rotation is arranged between the first grinding wheel structure (8) and the second grinding wheel structure (9), a gear transmission mechanism (10) for realizing synchronous reverse rotation of the first grinding wheel structure (8) and the second grinding wheel structure (9) is arranged on the support structure (7), a screening drum structure (2) capable of rotating and screening ore and feeding material toward the upper sides of the first grinding wheel structure (8) and the second grinding wheel structure (9) is arranged on the outer sides of the first grinding wheel structure (8) and the second grinding wheel structure (9), an outer baffle (3) is arranged on the outer side of the screening drum structure (2), a bracket (101) capable of fixedly supporting the support structure (7) is arranged on the base (1), and a rotary drive assembly (4) for driving the screening drum structure (2) to rotate is arranged on the bracket (101); The first grinding wheel structure (8) comprises a first wheel body (801), a third motor (802) capable of driving the first wheel body (801) to rotate is arranged inside the first wheel body (801), and one of the shaft ends of the first wheel body (801) is connected to the gear transmission mechanism (10); The second grinding wheel structure (9) comprises a second wheel body (901), an adjustment chamber (902) is provided at the center axis of the second wheel body (901), an inner center rod (903) is provided in the adjustment chamber (902), both ends of the inner center rod (903) are rotatably connected to the support structure (7) and one end thereof is connected to the gear transmission mechanism (10), and the inner center rod (903) and the inner side wall of the adjustment chamber (902) are respectively provided with an elastic buffer structure and a rigid support structure; The elastic buffer structure is provided with a plurality of groups evenly distributed along the axial direction of the second wheel body (901), each group including more than three elastic buffer structures evenly distributed around the axis of the inner center rod (903), the elastic buffer structure including a spring (905), the two ends of the spring (905) being fixedly connected to the inner center rod (903) and the inner wall of the adjustment chamber (902), the inner center rod (903) being fixedly provided with a first positioning column (906) for limiting the position of the spring (905), the inner side wall of the adjustment chamber (902) being provided with an embedding hole (908) for embedding the end of the spring (905), and the embedding hole (908) being provided with a second positioning column (907) for limiting the position of the spring (905); The rigid support structure is provided with a plurality of groups evenly distributed along the axial direction of the second wheel body (901), each group comprising three or more rigid support structures evenly distributed around the axis of the inner center rod (903), the rigid support structure comprising a hydraulic cylinder (909), the hydraulic cylinder (909) being fixedly arranged on the inner side wall of the adjustment chamber (902), the push rod head end of the hydraulic cylinder (909) facing the inner center rod (903) and being fixedly connected with a positioning cone head (910), the outer side of the inner center rod (903) being provided with a positioning cone hole (911) for matching and connecting with the positioning cone head (910), and the output end of the digital display control panel (6) being electrically connected to the input end of the hydraulic cylinder (909); The two ends of the inner center rod (903) are respectively connected to second rotating shafts (904), and the two second rotating shafts (904) are rotatably connected to the two support plates (701) through bearings, and one of the second rotating shafts (904) is transmission-connected to the first wheel body (801) through a gear transmission mechanism (10). The outer side of each second rotating shaft (904) is sleeved with an inner sleeve ring (913), and the two ports of the adjustment chamber (902) are respectively sleeved with outer sleeve rings (914), and a sealing belt (912) is connected between the corresponding inner sleeve ring (913) and the outer sleeve ring (914), and the cross-section of the sealing belt (912) is wavy.

2. The ore grinding device according to claim 1, characterized in that: The support structure (7) comprises two support plates (701) arranged in parallel, the first wheel body (801) and the second wheel body (901) are rotatably arranged between the two support plates (701), and the two support plates (701) are respectively fixedly connected with support shafts (703) on opposite sides thereof via U-shaped frames (702), and the two support shafts (703) are coaxial with each other and respectively pass through the screening drum structure (2) and the bracket (101) to be fixedly connected with each other.

3. The ore grinding device according to claim 2, characterized in that: The output shaft end of the third motor (802) is connected to one end of an output shaft (804), the other end of the output shaft (804) passes through the first wheel body (801) and is fixedly connected to one of the support plates (701), the output shaft (804) is arranged at one of the ends of the central axis of the first wheel body (801), and one end of a first rotating shaft (803) is fixedly connected to the other end of the central axis of the first wheel body (801), the other end of the first rotating shaft (803) is rotatably connected to the other support plate (701) and is connected to the second wheel body (901) through a gear transmission mechanism (10), the outer contour dimensions of the first wheel body (801) and the outer contour dimensions of the second wheel body (901) are consistent with each other, and the output end of the digital display control panel (6) is electrically connected to the input end of the third motor (802).

4. The ore grinding device according to claim 3, characterized in that: The screening drum structure (2) comprises two conical casings (201), the outer shape of the conical casings (201) is a truncated cone with one end wide and the other end narrow, the interior of the conical casings (201) is hollow and one side of the wide end is open, the wide ends of the two conical casings (201) are arranged opposite to each other and a screening drum (205) is arranged between their edges, a plurality of evenly distributed material-discharging blades (203) are arranged on the inner side wall of the screening drum (205) along its axis, the cross-section of the material-discharging blades (203) is C-shaped, the length dimension of the screening drum (205) along its axial direction is smaller than the length dimension of the first wheel body (801) along its axial direction, the narrow end of each conical casing (201) is open and the inner side of the opening is relatively rotatably connected to a support plate (202) via a bearing (204), and the support plate (202) is fixedly arranged on a support shaft (703); The outer shield (3) comprises an annular cover shell (301) sleeved on the outside of the sieve drum (205); the inner edges at both ends of the annular cover shell (301) are formed with sealing pads (305) for achieving abutment and sealing of the two ends of the sieve drum (205); a lower discharge port (303) is provided on the bottom side of the annular cover shell (301); a lower hopper (304) is provided at the lower discharge port (303); and the upper side of the annular cover shell (301) is fixedly arranged on the bracket (101) via a hanger (302).

5. The ore grinding device according to claim 4, characterized in that: The rotary drive assembly (4) comprises a first motor (401) fixedly mounted on a bracket (101), the output shaft end of the first motor (401) being connected to a gear (402), a gear ring (403) being fixedly mounted on the outer side of a narrow end of one of the conical sleeves (201), the gear (402) and the gear ring (403) being meshedly connected to each other, and the output end of the digital display control panel (6) being electrically connected to the input end of the first motor (401).

6. The ore grinding device according to claim 4, characterized in that: A feeding assembly (5) for adding ore raw materials thereto is arranged on one side of the screening drum structure (2), and the feeding assembly (5) comprises a feeding pipe (501), one end of the feeding pipe (501) passes through the support plate (202) and extends into the conical casing (201), a second motor (503) is fixedly arranged at the other end of the feeding pipe (501), an output shaft end of the second motor (503) is connected to one end of a rotating shaft (504), the other end of the rotating shaft (504) extends into the feeding pipe (501) and is provided with a spiral transmission rib (505), a hopper (502) is arranged on the upper side of one end of the feeding pipe (501) close to the second motor (503), a support block (506) for supporting the hopper (502) is fixedly arranged on the bracket (101), and the output end of the digital display control panel (6) is electrically connected to the input end of the second motor (503).

7. A method for using an ore grinding device, characterized in that: The ore grinding device according to claim 6 comprises the following steps: S1: Ore raw materials are added into the screening drum structure (2) by the feeding assembly (5), and slide from the conical casing (201) to between the material-discharging blades (203) on the screening drum (205); S2: The rotary drive assembly (4) drives the conical casing (201) and the screen drum (205) to rotate, thereby driving the material-discharging blades (203) to transport and displace the ore materials upwards. When the material-discharging blades (203) move the ore materials to the upper part between the first grinding wheel structure (8) and the second grinding wheel structure (9), the ore materials slide downwards from the material-discharging blades (203); S3: The push rod of the hydraulic cylinder (909) drives the positioning cone head (910) to separate from the positioning cone hole (911), and the output shaft of the third motor (802) in the first wheel body (801) rotates, thereby driving the output shaft (804) to rotate, thereby driving the first wheel body (801) to rotate relative to the support plate (701), and the rotation of the first wheel body (801) drives the first rotating shaft (803) to rotate, and the rotation of the first rotating shaft (803) drives the second wheel body (901) to rotate through the gear transmission mechanism (10). When the ore raw material falls between the first grinding wheel structure (8) and the second grinding wheel structure (9), the first wheel body (801) and the third grinding wheel structure (804) rotate. The two wheel bodies (901) rotate synchronously in opposite directions to press the ore material downward. Since the hydraulic cylinder (909) releases the rigid support of the inner center rod (903), when the ore material is a large block, the spring (905) can realize adaptive elastic distance adjustment between the first grinding wheel structure (8) and the second grinding wheel structure (9). During the grinding process, the distance between the positioning cone head (910) and the positioning cone hole (911) is gradually reduced until the hydraulic cylinder (909) realizes the rigid support of the inner center rod (903), and then the rigid support of the inner center rod (903) is released again, and the reciprocating cycle is repeated, thereby realizing graded grinding of the ore; S4: in step S3, when the rigid support of the inner center rod (903) is released, the ore raw material is added into the screening drum structure (2) by the feeding assembly (5), and the feeding is stopped before the rigid support of the inner center rod (903) is achieved; S5: In step S3, during the rotation of the screening drum structure (2), the screening drum (205) can screen out the ground ore through the lower discharge port (303) and the lower hopper (304).

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