A multi-stage zone crusher for ore mining and sorting

Abstract

This invention relates to the field of ore mining technology, specifically to a multi-stage zoned crusher for ore mining and sorting. It includes a feeding frame, with a distribution frame fixedly installed at the top center of the rear inner wall of the feeding frame via a connecting rod. A feed chute is provided at the corner of the top surface of the distribution frame. A guide platform is fixedly installed inside the feeding frame and at the bottom of the distribution frame, with the top surface of the guide platform having a triangular structure that is higher in the middle and lower on both sides. This invention performs volumetric screening of the ore before crushing and accumulates the ore in different areas for intermittent feeding. Based on this, the screened ore is divided into zones for multi-stage, layered crushing. This not only achieves thorough crushing of ore particles of various sizes, reducing the operating burden of the crushing components, but also reduces the likelihood of larger particles becoming stuck in the crushing parts, causing movement stagnation and material jamming, effectively improving ore mining efficiency.

Description

Technical Field

[0001] This invention relates to the field of ore mining technology, specifically to a multi-stage zone crusher for ore mining and sorting. Background Technology

[0002] In the process of ore mining, crushers are needed to crush the mined ore for collection and other uses. For example, CN209772265U discloses a crushing and sorting machine for mining. It is worth noting that the above patent only describes the uniform screening of crushed ore. In the early stage of ore mining, the crushed ore is generally divided into coarse ore blocks and fine ore particles with large differences in volume. The fine ore particles (without crushing) are simultaneously incorporated into the same crushing area along with the ore blocks. This not only causes the fine ore to be lost and difficult to contact the crushing components, but also easily increases the operating burden of the crushing components and causes material jamming.

[0003] To address this technical deficiency, a solution is proposed. Summary of the Invention

[0004] The purpose of this invention is to perform volumetric screening of ore before crushing and stack them in different areas to await intermittent feeding. On this basis, the screened ore is divided into zones for multi-stage layered crushing. This not only enables the full crushing of ore particles of various sizes and reduces the operating burden of the crushing components, but also reduces the situation where some larger-volume crushed stone particles are stuck at the crushing parts, causing movement stagnation and material jamming, thus effectively improving the efficiency of ore mining.

[0005] The objective of this invention can be achieved through the following technical solution: a multi-stage zoned crusher for ore mining and sorting, comprising a material receiving frame, wherein a material distribution frame is fixedly installed on the inner wall of the rear end of the material receiving frame at the top center via a connecting rod, and a feeding chute is provided at the corner of the top surface of the material distribution frame.

[0006] Inside the material collection frame and at the bottom of the material distribution frame, a guide platform is fixedly installed. The top surface of the guide platform has a triangular structure that is high in the middle and low on both sides. An intermittent material distribution mechanism is provided outside the guide platform, and an advanced material breaking mechanism is provided at the bottom of the material collection frame.

[0007] The intermittent material distribution mechanism includes two sets of concave baffle frames, which are respectively sleeved on both sides of the guide platform. The upper and lower ends of the baffle frames extend to the upper and lower ends of the guide platform, respectively. Slide plates are fixedly installed at the bottom of the front and rear ends of the two sets of baffle frames, and one end of the slide plate extends to the outside of the guide platform. Limit grooves are provided at both ends of the two sets of slide plates. Round shafts are fixedly installed at the middle of both sides of the front and rear ends of the guide platform, and the round shafts are slidably connected to the limit grooves.

[0008] Furthermore, the bottom surface of the material distribution frame is provided with three sets of arc-shaped material distribution grooves at equal intervals on the same side as the feeding groove, and an arc-shaped material distribution groove is provided on the other side of the bottom surface of the material distribution frame. The width of the material distribution groove is three times the width of the arc-shaped material distribution groove. A dual-axis motor is provided on the front end of the material distribution frame, and the rear output shaft of the dual-axis motor extends into the interior of the material distribution frame and is fixedly installed with a stop bar. A transmission wheel is fixedly installed at the front end of the dual-axis motor shaft.

[0009] Furthermore, a groove is provided at the center of the front slide plate, and toothed grooves are provided on the inner wall of the bottom of the groove. A limiting gear meshes in the center of the groove. The central shaft of the rear end of the limiting gear is rotatably connected to the front end face of the guide table. A transmission wheel is also fixedly installed on the front shaft of the limiting gear extending to the outside of the groove. A transmission belt connects the upper and lower sets of the transmission wheels.

[0010] Furthermore, the advanced material breaking mechanism includes a vertical plate, which is fixedly installed at the center of the bottom of the guide platform. Inclined receiving frames 1 are respectively provided on the top sides of the vertical plate, and inclined receiving frames 2 are respectively provided on the bottom sides of the vertical plate. The lower ends of the two sets of receiving frames 1 are cross-hinged by hinge rods and are together sleeved on the outside of the vertical plate. The end of receiving frame 1 near the vertical plate is provided with a concave groove. The higher ends of the two sets of receiving frames 2 are cross-hinged by hinge rods and are together sleeved on the outside of the vertical plate.

[0011] Furthermore, the two sets of receiving frames one and two sets of receiving frames two are symmetrical about left and right with respect to the central axis of the upright plate, and the receiving frames one and two on the same side are symmetrical about up and down with respect to the central axis of the upright plate.

[0012] Furthermore, a pressure roller 1 is provided at the middle section of the top surface of the two sets of receiving frames 1, and a pressure roller 2 is provided at the middle section of the top surface of the two sets of receiving frames 2. The interiors of the pressure roller 1 and the pressure roller 2 are respectively rotatably connected to the inner wall of the rear end of the receiving frame through a fixed through-hole rotating rod.

[0013] Furthermore, each of the two sets of pressure rollers has a transmission wheel 2 fixedly sleeved on its rear end rotating rod, and a transmission belt is sleeved between the two sets of transmission wheels 2. A motor 1 is provided between the rear end of one set of transmission wheels 2 and the inner wall of the corresponding rear end of the material receiving frame. Transmission wheels 3 are fixedly installed on the front end rotating shafts of both sets of pressure rollers 1 and the front end rotating shafts of both sets of pressure rollers 2. A transmission belt is sleeved between the two sets of transmission wheels 3 corresponding to each other.

[0014] Furthermore, deflection gears are fixedly installed at the front hinges of the first receiving frame and the two sets of second receiving frames near one side. The upper and lower sets of deflection gears are connected to a drive gear, and a motor is installed between the rear shaft of the drive gear and the front end of the vertical plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention achieves rapid screening of coarse and fine ore materials by setting up a material distribution frame, a dual-shaft motor, and a guide bar in combination. The dual-shaft motor drives the guide bar to rotate clockwise and counterclockwise to achieve screening of ore materials. An intermittent material distribution mechanism is set up in combination with the dual-shaft motor to facilitate the intermittent feeding of the screened materials, indirectly controlling the amount of ore crushed at one time, which is beneficial to improving the multi-layer crushing efficiency of ore.

[0017] 2. The present invention also uses an advanced crushing mechanism to assist in the preliminary screening of the ore material, which slides to the inclined surface of the corresponding receiving frame one, and is crushed in a partitioned area by two sets of pressure rollers. The crushed stone passes through the receiving frame one, crosses the pressure roller one, and slides down the inclined surface of the receiving frame one to the lower end of the surface of the receiving frame two, where it is crushed a second time by two sets of pressure rollers. Based on the screening of the ore material, multi-stage crushing is carried out in partitioned and layered areas, which is conducive to achieving full crushing of the ore.

[0018] Furthermore, by setting up deflection gears and drive gears, which cooperate with receiving frame one and receiving frame two, motor two drives the drive gear to rotate counterclockwise, and the two sets of deflection gears rotate clockwise to drive receiving frame one and receiving frame two on the right side to deflect downwards respectively, forcing the distance between receiving frame two and receiving frame one, as well as between pressure roller two and receiving frame two, to increase, so as to help the stuck crushed stone particles to be discharged as soon as possible, reduce the situation of material jamming and movement stagnation, and improve the efficiency of ore crushing. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the material receiving frame of the present invention;

[0022] Figure 3 This is a half-sectional schematic diagram of the material receiving frame of the present invention;

[0023] Figure 4 This is a cross-sectional view of the combination of the material receiving frame, the material distributing circular frame, and the intermittent material distributing mechanism of the present invention;

[0024] Figure 5 This is a three-dimensional schematic diagram of the material distribution frame of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the advanced material crushing mechanism of the present invention;

[0026] Figure 7 This is a schematic diagram of the reverse side of the advanced material crushing mechanism of the present invention.

[0027] In the diagram: 1. Material receiving frame; 2. Material distribution frame; 201. Dual-axis motor; 202. Abutment bar; 203. Transmission wheel one; 3. Guide table; 4. Intermittent material distribution mechanism; 41. Material blocking frame; 42. Slide plate; 43. Round shaft; 44. Limit gear; 5. Advanced crushing mechanism; 51. Vertical plate; 52. Receiving frame one; 53. Receiving frame two; 54. Pressure roller one; 55. Pressure roller two; 56. Transmission wheel two; 57. Motor one; 58. Transmission wheel three; 59. Deflection gear; 510. Drive gear; 511. Motor two. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figure 1 - Figure 7 As shown, a multi-stage zone crusher for ore mining and sorting includes a feeding frame 1, a distribution frame 2 is fixedly installed on the inner wall of the rear end of the feeding frame 1 at the top center by a connecting rod, and a feeding chute is provided at the corner of the top surface of the distribution frame 2.

[0030] Three sets of arc-shaped material distribution grooves are equidistantly arranged on the bottom surface of the material distribution frame 2 on the same side as the feeding groove. An arc-shaped material distribution groove is arranged on the other side of the bottom surface of the material distribution frame 2, and the width of the material distribution groove is three times the width of the arc-shaped material distribution groove 1. A dual-axis motor 201 is arranged on the front end of the material distribution frame 2, and the output shaft of the dual-axis motor 201 extends into the interior of the material distribution frame 2 and is fixedly installed with a stop bar 202. A transmission wheel 203 is fixedly installed at the front end of the dual-axis motor 201. A guide platform 3 is fixedly installed inside the material receiving frame 1 and at the bottom of the material distribution frame 2, and the top surface of the guide platform 3 has a triangular structure with a high middle and low sides.

[0031] The collected ore of varying volumes is poured into the distribution frame 2 through the feed chute. The ore first accumulates inside the distribution frame 2 and is located on one side of the abutment bar 202 (on the same side as the arc-shaped distribution frame). Then, the dual-axis motor 201 is started to drive the abutment bar 202 to rotate counterclockwise. The abutment bar 202 pushes several groups of ore to slide along the inner left side of the distribution frame 2.

[0032] Among them, fine crushed ore and crushed stone particles with a volume smaller than the opening of the arc-shaped material distribution trough are discharged outward through the arc-shaped material distribution trough and slide onto the inclined side of the guide platform 3 until the abutment bar 202 rotates to near the feed trough. Then, the dual-shaft motor 201 drives the abutment bar 202 to rotate in the opposite direction, pushing the remaining unscreened coarse ore blocks toward the arc-shaped material distribution trough 2 on the inner wall of the other side of the material distribution frame 2.

[0033] Because the width of the arc-shaped material distribution trough 2 is greater than that of the arc-shaped material distribution trough 1, the remaining ore blocks are forced to be discharged outward through the arc-shaped material distribution trough 2 and slide down to the other side of the inclined surface of the guide platform 3. This facilitates the separation and crushing of the ore according to the volume of the mined ore. The two types of ore flow along the inclined surface of the guide platform 3 and wait to slide down to the corresponding advanced crushing mechanism 5 for zoned crushing to improve the ore crushing efficiency.

[0034] An intermittent material distribution mechanism 4 is provided on the outside of the material guide platform 3, and an advanced material breaking mechanism 5 is provided at the bottom of the material collection frame 1;

[0035] The intermittent material distribution mechanism 4 includes two sets of concave baffle frames 41, which are respectively sleeved on both sides of the guide platform 3. The upper and lower ends of the baffle frames 41 extend to the upper and lower ends of the guide platform 3, respectively. Slide plates 42 are fixedly installed at the bottom of the front and rear ends of the two sets of baffle frames 41, and one end of the slide plate 42 extends to the outside of the guide platform 3. Limit grooves are provided at both ends of the two sets of slide plates 42. Round shafts 43 are fixedly installed at the middle of both sides of the front and rear ends of the guide platform 3. The round shafts 43 are slidably connected to the limit grooves.

[0036] A groove is provided at the center of the front slide plate 42. The inner wall of the bottom of the groove is provided with toothed grooves. A limiting gear 44 is meshed in the center of the groove. The central shaft of the rear end of the limiting gear 44 is rotatably connected to the front end of the guide table 3. A transmission wheel 203 is also fixedly installed on the front shaft of the limiting gear 44 extending to the outside of the groove. A transmission belt connects the upper and lower sets of transmission wheels 203 together.

[0037] During the counterclockwise rotation of the abutment bar 202 driven by the dual-axis motor 201, the transmission wheel 203 at the front end of the dual-axis motor 201 is driven to rotate synchronously. Under the transmission action of the transmission belt, the other set of transmission wheels 203 and its connected limiting gear 44 are driven to rotate synchronously. The limiting gear 44 meshes with the tooth groove at the inner wall of the slide, and the two sets of slide plates 42 jointly pull one set of baffle frames 41 (on the same side of the arc-shaped material distribution groove) to move to the side of the guide platform 3 and overlap and engage with the guide platform 3.

[0038] At this time, the fine ore particles discharged from the arc-shaped material distribution chute are blocked by the baffle frame 41 and remain on the top inclined surface of the guide platform 3 to wait for concentrated discharge. At the same time, the other ends of the two sets of sliding plates 42 jointly push the other set of baffle frames 41 (on the same side of the arc-shaped material distribution chute) away from the side frame of the guide platform 3.

[0039] After the fine particles are screened separately, the dual-shaft motor 201 drives the abutment bar 202, transmission wheel 203 and limit gear 44 to rotate clockwise. The abutment bar 202 pushes in the opposite direction, and the coarse ore begins to be screened to the guide platform 3. The limit gear 44 meshes with the tooth groove again to realize the reverse transmission of the slide plate 42 and the two sets of baffle frames 41 reverse transmission.

[0040] Thus, the baffle frame 41 on the same side as the arc-shaped material distribution chute moves away from the guide platform 3 to form a feeding space, so that fine ore particles can start to be fed. At the same time, the baffle frame 41 on the same side as the arc-shaped material distribution chute moves closer to the side of the guide platform 3 to block the feeding of coarse ore. This process is repeated to achieve intermittent feeding of ore materials of different volumes, indirectly controlling the amount of ore crushed at one time, which is beneficial to improving the multi-layer crushing efficiency of ore.

[0041] It is worth noting that if there is a situation where some large ore particles are stuck inside the baffle frame 41 (on the same side of the arc-shaped material distribution channel), the ore particles can be squeezed and crushed during the reciprocating motion of the baffle frame 41 to reduce the subsequent crushing burden.

[0042] Example 2: Please refer to Figure 5 , Figure 6 - Figure 7 As shown, the advanced material crushing mechanism 5 includes a vertical plate 51, which is fixedly installed at the bottom center of the guide platform 3. Inclined receiving frames 52 are respectively provided on the top sides of the vertical plate 51, and inclined receiving frames 53 are respectively provided on the bottom sides of the vertical plate 51. The lower ends of the two sets of receiving frames 52 are cross-hinged by hinge rods and are together sleeved on the outside of the vertical plate 51. The end of the receiving frame 52 near the vertical plate 51 is provided with a concave groove. The higher ends of the two sets of receiving frames 53 are cross-hinged by hinge rods and are together sleeved on the outside of the vertical plate 51.

[0043] Two sets of receiving frames 52 and two sets of receiving frames 53 are symmetrical about left and right with respect to the central axis of the upright plate 51. The receiving frames 52 and 53 on the same side are symmetrical about up and down with respect to the central axis of the upright plate 51. A pressure roller 54 is provided at the middle of the top surface of the two sets of receiving frames 52, and a pressure roller 55 is provided at the middle of the top surface of the two sets of receiving frames 53. The inside of the pressure rollers 54 and 55 are rotatably connected to the inner wall of the rear end of the receiving frame 1 through fixed through rotating rods. The rear rotating rods of the two sets of pressure rollers 54 are fixedly sleeved with transmission wheels 56. A transmission belt is sleeved between the two sets of transmission wheels 56. A motor 57 is provided between the rear end of one set of transmission wheels 56 and the inner wall of the rear end of the corresponding receiving frame 1.

[0044] Once the pre-screened ore materials slide to the corresponding receiving frame 52 inclined surface, start the motor 57 to drive one set of transmission wheels 56 to rotate, and force the other set of transmission wheels 56 to rotate under the transmission belt.

[0045] At the same time, the pressure roller 54 connected to the transmission wheel 56 also rotates and divides the crushed stone area that passes through the two sets of pressure rollers 54 into sections for crushing. The crushed stone passes through the receiving frame 52, crosses the pressure roller 54, and slides down the inclined surface of the receiving frame 52 to the concave groove. Then, the ore material in the two areas that have been initially crushed slides down to the lower end of the surface of the corresponding receiving frame 53.

[0046] Both sets of pressure rollers 1 54 and the two sets of pressure rollers 2 55 are fixedly equipped with transmission wheels 3 58. The two sets of transmission wheels 3 58 are connected together by a transmission belt. Under the transmission action of the transmission wheels 3 58 and the transmission belt, the two sets of pressure rollers 2 55 are forced to rotate in coordination, and further crush the two volumes of ore that have been initially crushed. The fully crushed ore particles are discharged through the inclined surface of the receiving frame 2 53.

[0047] Based on the screening of ore materials, multi-stage crushing in different zones and layers is beneficial to achieving full crushing of the ore;

[0048] It is worth noting that, due to the large volume of the coarse ore, after multiple layers of rolling, the large volume of ore rolled in the right rolling area makes it very easy for small stones to get stuck at the intervals between the pressure roller 1 54 and the receiving frame 1 52, and between the pressure roller 2 55 and the receiving frame 2 53, which can easily cause the pressure roller assembly to stop and the ore material to become blocked.

[0049] See Figure 2 and Figure 6As shown, deflection gears 59 are fixedly installed at the front hinges of the first receiving frame 52 and the two sets of second receiving frames 53 near one side. The upper and lower sets of deflection gears 59 are connected to the drive gear 510 through meshing. The rear shaft of the drive gear 510 and the front end of the vertical plate 51 are connected to the motor 511.

[0050] Therefore, after intermittent pressing, the second motor 511 drives the drive gear 510 to rotate counterclockwise. The upper and lower sets of deflection gears 59 mesh with the drive gear 510 respectively. The two sets of deflection gears 59 rotate clockwise and drive the upper and lower receiving frames 52 and 53 on the right side to deflect downward respectively, so that the distance between receiving frame 53 and receiving frame 52 and between pressure roller 55 and receiving frame 53 increases, so as to help the stuck crushed stone particles to be discharged as soon as possible, reduce the situation of jamming and movement stagnation, and improve the efficiency of ore crushing.

[0051] When using this invention, ores of varying volumes are collected and poured into the distribution frame 2 through the feeding chute. The ores first accumulate inside the distribution frame 2 and are located on one side of the abutment bar 202 (on the same side of the arc-shaped distribution frame). Then, the dual-axis motor 201 is started to drive the abutment bar 202 to rotate counterclockwise. The abutment bar 202 pushes several groups of ores to slide along the inner left side of the distribution frame 2.

[0052] Among them, fine crushed ore particles and crushed stone particles with a volume smaller than the opening of the first arc-shaped material distribution trough are discharged outward through the first arc-shaped material distribution trough and slide onto the inclined side of the guide platform 3 until the abutment bar 202 rotates close to the feed trough. Then, the dual-shaft motor 201 drives the abutment bar 202 to rotate in the opposite direction, pushing the remaining unscreened coarse ore blocks towards the second arc-shaped material distribution trough on the inner wall of the other side of the material distribution frame 2. This forces the remaining ore blocks to be discharged outward through the second arc-shaped material distribution trough and slide onto the inclined side of the guide platform 3. The two types of ore flow along the inclined surface of the guide platform 3 and wait to slide down into the corresponding advanced crushing mechanism 5 for zoned crushing.

[0053] Once the pre-screened ore materials slide to the corresponding receiving frame 52 inclined surface, the motor 57 is started, first driving one set of transmission wheels 56 to rotate, and under the transmission belt, the other set of transmission wheels 56 is forced to rotate as well. At the same time, the pressure roller 54 connected to the transmission wheel 56 also rotates, and the crushed stone area passing through the two sets of pressure rollers 54 is divided into sections for crushing. The crushed stone passes through the receiving frame 52, crosses the pressure roller 54, and slides down the inclined surface of the receiving frame 52 to the concave groove.

[0054] Next, the ore material from the two initially crushed areas slides down to the lower end of the surface of the corresponding receiving frame 2 53. Under the transmission action of the drive wheel 3 58 and the drive belt, the two sets of pressure rollers 2 55 are forced to rotate, further crushing the two volumes of ore that have been initially crushed. The fully crushed ore particles then slide down and are discharged through the inclined surface of the receiving frame 2 53.

[0055] At the same time, the starter motor 511 drives the drive gear 510 to rotate counterclockwise. The upper and lower deflection gears 59 mesh with the drive gear 510, forcing the two deflection gears 59 to rotate clockwise, which in turn drives the upper and lower receiving frames 52 and 53 on the right side to deflect downwards, thereby increasing the distance between receiving frame 53 and receiving frame 52, as well as between pressure roller 55 and receiving frame 53, to help the stuck crushed stone particles to be discharged as quickly as possible.

[0056] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-stage zoned crusher for ore mining and sorting, comprising a feeding frame (1), characterized in that: The inner wall of the rear end of the material collection frame (1) is fixedly installed with a material distribution frame (2) by a connecting rod at the top center, and a feeding groove is provided at the top corner of the material distribution frame (2); Inside the material collection frame (1) and at the bottom of the material distribution frame (2), a guide platform (3) is fixedly installed. The top surface of the guide platform (3) is a triangular structure with a high middle and low sides. An intermittent material distribution mechanism (4) is provided outside the guide platform (3). An advanced material breaking mechanism (5) is provided at the bottom of the material collection frame (1). The intermittent material distribution mechanism (4) includes two sets of concave baffle frames (41). The two sets of baffle frames (41) are respectively sleeved on both sides of the guide platform (3), and the upper and lower ends of the baffle frames (41) extend to the upper and lower ends of the guide platform (3). Slide plates (42) are fixedly installed at the bottom of the front and rear ends of the two sets of baffle frames (41), and one end of the slide plate (42) extends to the outside of the guide platform (3). Limit grooves are provided at both ends of the two sets of slide plates (42), and round shafts (43) are fixedly installed at the middle of both sides of the front and rear ends of the guide platform (3). The round shafts (43) are slidably connected to the limit grooves. The bottom surface of the material distribution frame (2) is provided with three sets of arc-shaped material distribution grooves at equal distances on the same side as the feeding groove. The bottom surface of the material distribution frame (2) is provided with an arc-shaped material distribution groove, and the width of the material distribution groove is three times the width of the arc-shaped material distribution groove. The front end of the material distribution frame (2) is provided with a dual-axis motor (201), and the rear output shaft of the dual-axis motor (201) extends into the interior of the material distribution frame (2) and is fixedly installed with a stop bar (202). The front end of the dual-axis motor (201) is fixedly installed with a transmission wheel (203). The sliding plate (42) at the front end is provided with a sliding groove at the center. The inner wall of the bottom of the sliding groove is provided with tooth grooves. The center of the sliding groove is meshed with a limiting gear (44). The rear center shaft of the limiting gear (44) is rotatably connected to the front end face of the guide table (3). The front shaft of the limiting gear (44) extends to the outside of the sliding groove and is also fixedly installed with a transmission wheel (203). The upper and lower sets of the transmission wheels (203) are connected by a transmission belt.

2. The multi-stage zone crusher for ore mining and sorting according to claim 1, characterized in that, The advanced material breaking mechanism (5) includes a vertical plate (51), which is fixedly installed at the bottom center of the guide platform (3). Inclined receiving frames (52) are respectively provided on the top side of the vertical plate (51), and inclined receiving frames (53) are respectively provided on the bottom side of the vertical plate (51). The lower ends of the two sets of receiving frames (52) are cross-hinged by hinge rods and are together sleeved on the outside of the vertical plate (51). The end of receiving frame (52) near the vertical plate (51) is provided with a concave slot. The higher ends of the two sets of receiving frames (53) are cross-hinged by hinge rods and are together sleeved on the outside of the vertical plate (51).

3. A multi-stage zoned crusher for ore mining and sorting according to claim 2, characterized in that, The two sets of receiving frames one (52) and the two sets of receiving frames two (53) are symmetrical about left and right relative to the central axis of the upright plate (51), and the receiving frames one (52) and the receiving frames two (53) on the same side are symmetrical about up and down relative to the central axis of the upright plate (51).

4. A multi-stage zoned crusher for ore mining and sorting according to claim 2, characterized in that, A pressure roller 1 (54) is provided at the middle section of the top surface of the two sets of receiving frames 1 (52), and a pressure roller 2 (55) is provided at the middle section of the top surface of the two sets of receiving frames 2 (53). The inside of the pressure roller 1 (54) and the pressure roller 2 (55) are respectively rotatably connected to the inner wall of the rear end of the receiving frame (1) through a fixed through-hole rotating rod.

5. A multi-stage zone crusher for ore mining and sorting according to claim 4, characterized in that, Both sets of pressure rollers (54) have a transmission wheel (56) fixedly sleeved on their rear end rotating rods. A transmission belt is sleeved between the two sets of transmission wheels (56). A motor (57) is provided between the rear end of one set of transmission wheels (56) and the inner wall of the rear end of the corresponding material collection frame (1). Transmission wheels (58) are fixedly installed on the front end rotating shafts of both sets of pressure rollers (54) and the front end rotating shafts of both sets of pressure rollers (55). A transmission belt is sleeved between the two sets of transmission wheels (58) corresponding to each other.

6. A multi-stage zone crusher for ore mining and sorting according to claim 2, characterized in that, A deflection gear (59) is fixedly installed at the front hinge of the receiving frame 1 (52) and the two sets of receiving frames 2 (53) near one side. The upper and lower sets of deflection gears (59) are connected to a drive gear (510) in a common meshing manner. A motor 2 (511) is provided between the rear shaft of the drive gear (510) and the front end of the upright plate (51).

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