High-hardness ore crushing device

Abstract

The utility model relates to a high-hardness ore crushing device which comprises a material collecting shell and a supporting frame supporting the material collecting shell, a supporting table is inserted into the bottom of the material collecting shell, and a rotary crushing conical shell is supported on the top face of the supporting table through a rotary supporting assembly. A mounting frame capable of suspending a hydraulic crushing drill above the rotary crushing conical shell is further supported on the supporting frame, and a protective cover capable of shielding an opening of the rotary crushing conical shell in a lifting manner and a high-torque driving unit for driving the rotary crushing conical shell to rotate are further arranged on the mounting frame. The large-size high-hardness ore crushing device can independently crush large-size high-hardness ore, so that the size of the ore is effectively reduced, the operation stability and safety of a whole crushing system are improved, and continuous crushing machining is prevented from being hindered by the large-size high-hardness ore.

Description

TECHNICAL FIELD

[0001] The utility model relates to ore crushing equipment technical field especially relates to a kind of high-hardness ore's crushing device. BACKGROUND

[0002] Ore is an important raw material required by multiple fields, which can be used for material smelting extraction, building erection, etc. When mining and utilizing mine ore, the volume of the initially mined ore is large, and it is difficult to transfer. In order to facilitate the subsequent processing and transportation of the ore, it is usually necessary to use a crushing device to crush and process the mined ore into smaller and required small-size ore particles.

[0003] Traditional ore crushing equipment usually crushes ore by hitting or extruding. Crushing equipment is divided into roller type, jaw type, impact type, hammer type, impact type, etc. according to the working mode. The existing crushing equipment usually continuously supplies and outputs ore by building a transmission structure. In order to ensure the safety of ore crushing, the crushing work is usually limited in a crushing processing chamber, so the ore can be crushed and processed after being input from the feed port to the crushing processing chamber. The initially mined ore often has some individuals with large size, which cannot be directly transferred to the crushing processing chamber by the transmission structure. Large-scale ore individuals are easily jammed at the feed port of conventional ore crushing equipment, affecting the continuous crushing work of the crushing system. In the existing ore processing field, when a large individual ore blocks the feed port of the crushing equipment, the operator usually uses a manual hammer to hit the ore, causing the ore to be crushed to a certain extent and reducing the size of the ore, so that the ore can smoothly enter the crushing equipment. However, when the mined ore is a high-hardness ore with a tight internal crystal structure, the labor intensity of manual crushing is high and the efficiency is low, resulting in high difficulty and slow speed of processing high-hardness ore, and the operator needs to approach the crushing equipment when processing the jammed ore, which has a high operation risk and threatens the safety of the operator. Therefore, a pre-crushing processing device for large-size high-hardness ore is needed, which can pre-crush large-size high-hardness ore individually to avoid large individual ore from blocking the conventional ore crushing equipment for batch crushing. SUMMARY

[0004] The utility model aims at providing a kind of high hard ore's crushing device that can separately carry out the crushing treatment of large size high hardness ore and effectively reduce the size of ore, to solve the problem that the existing ore processing field is usually reduced the size of ore by artificial hammering when facing large size raw ore, so that ore can meet the processing requirement of ore crushing equipment, but the efficiency of artificial crushing is low and safety is poor, especially when facing large volume high hardness ore, artificial knocking cannot effectively decompose ore, and the existing ore crushing equipment is limited by its feed inlet size, and cannot process large volume high hardness ore.

[0005] The utility model adopts technical scheme: a kind of high hard ore's crushing device, including aggregate shell and support the support frame of the aggregate shell, support platform is inserted in the bottom of the aggregate shell, and rotating crushing cone shell is supported on the top surface of the support platform by rotating support assembly, installation frame capable of suspending hydraulic crushing drill above the rotating crushing cone shell is also supported on the support frame, and protective cover that the opening of the rotating crushing cone shell is shielded in a lift manner and high torsion driving unit that drives the rotation of the rotating crushing cone shell are also provided on the installation frame.

[0006] According to a preferred embodiment, a conical cavity capable of being matched with the rock breaking drill bit of the hydraulic crushing drill is formed in the rotating shell of the rotating crushing cone shell, and a converging waist groove capable of defining its hourglass-shaped outer contour is also formed on the outside of the rotating shell.

[0007] According to a preferred embodiment, a plurality of downward inclined through grooves are annularly and spaced apart on the shell wall of the rotating shell that defines the conical cavity, and the downward inclined through grooves are constructed in a way to construct an expanded channel; a transmission gear ring capable of being transmissionally engaged with the high-torsion driving unit is also provided on the top surface edge of the rotating shell, and an assembly ring groove accommodating at least part of the protective cover is also formed on the top surface thereof.

[0008] According to a preferred embodiment, a shielding ring plate is connected to the bottom surface of the rotating shell, the shielding ring plate is fitted to the support platform at its axially lower end in a way that it can define a dust isolation chamber for installing the rotating support assembly, and a gap-filling ring pad is also provided on the inner side surface of the shielding ring plate.

[0009] According to a preferred embodiment, the rotating support assembly comprises a rotating table bearing, an auxiliary support column and a support roller, wherein the rotating table bearing is installed between the rotating shell and the support table in a manner of defining the relative position of the rotating shell and the support table in the axial direction; the auxiliary support column is supported on the support table in a manner of being circularly spaced around the rotating table bearing, and the axial upper end of the auxiliary support column is connected with the support roller which rolls against the bottom surface of the rotating shell.

[0010] According to a preferred embodiment, the aggregate shell is provided with an inclined bottom plate in a manner of being capable of collecting the ore discharged from the rotating shell, and is further provided with a discharge port penetrating the side shell wall of the aggregate shell at the low side of the inclined bottom plate.

[0011] According to a preferred embodiment, the rock breaking drill bit of the hydraulic breaking drill is connected with the mounting frame through a hydraulic column, so that the rock breaking drill bit is coaxially suspended above the rotating shell in a lifting manner.

[0012] According to a preferred embodiment, a spiral breaking groove and a breaking protrusion which are spaced along the spiral line direction are arranged on the cone surface of the rock breaking drill bit.

[0013] According to a preferred embodiment, the protective cover comprises a telescopic adjusting rod which is connected with the mounting frame and is circularly spaced, and a ring-shaped cover body which is connected with the axial lower end of the telescopic adjusting rod and is adjustably inserted into the assembly ring groove.

[0014] According to a preferred embodiment, the high-torque driving unit comprises a rotating tooth which is engaged with the transmission gear ring, a high-torque driving motor which drives the rotating tooth to rotate, and a mounting table which connects the high-torque driving motor with the mounting frame.

[0015] The utility model discloses the beneficial effect is:

[0016] The rotating crushing cone shell and the hydraulic crushing drill can cooperate to drill and crush the ore, so that the cooperation of multiple forces can accelerate the crushing speed of high-hard ore and improve the crushing efficiency. Compared with the traditional manual knocking crushing method, the drill insertion and expansion of the hydraulic crushing drill can force the internal stress of the ore to change and make the ore crack from the inside out, thereby reducing the difficulty of crushing high-hard ore, improving the crushing speed and efficiency, and improving the safety of the crushing process. In addition, the present application is used for pre-transferring large-size high-hard ore for screening, so that the large-size high-hard ore is transported to the rotating crushing cone shell through the self-guiding plate groove, and then the rotating crushing cone shell and the hydraulic crushing drill are used to complete the crushing process of the ore, effectively replacing manual knocking crushing, and efficiently completing the pre-crushing of high-hard ore to reduce the size of the ore, so that the output ore can have a suitable volume to be input into a conventional ore crushing device through the feed inlet, effectively protecting the personal safety of the relevant operators. The rotating shell can cooperate with the rock breaking drill bit to define the processing position of the ore, so that the ore is drilled by the rock breaking drill bit pressed downward in the conical chamber, and the rotating shell can rotate around the shaft while the rock breaking drill bit is pressed and broken, thereby accelerating the crushing movement of the ore, so that the ore subjected to different forces by the rotating shell and the rock breaking drill bit can be broken more quickly and effectively. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a preferred high-hard ore crushing device structure schematic diagram of the utility model;

[0018] Fig. 2 is a preferred high-hard ore crushing device structure schematic diagram of the utility model when the hydraulic crushing drill is placed in the conical chamber.

[0019] LIST OF REFERENCE NUMERALS

[0020] 1: material collecting shell; 2: support frame; 3: support table; 4: rotating support assembly; 5: rotating crushing cone shell; 6: hydraulic crushing drill; 7: mounting frame; 8: protective cover; 9: high-torsion driving unit; 11: inclined bottom plate; 12: discharge port; 41: rotary table bearing; 42: auxiliary support column; 43: support roller; 51: rotating shell; 52: conical chamber; 53: converging waist groove; 511: downward penetrating groove; 512: transmission tooth ring; 513: assembly ring groove; 514: shielding ring plate; 515: gap-filling ring pad; 61: rock breaking drill bit; 62: hydraulic column; 611: spiral crushing groove; 612: crushing protrusion; 81: telescopic adjusting rod; 82: annular cover; 91: rotating tooth; 92: high-torsion driving motor; 93: mounting table. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings structure is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0022] The technical solutions provided by the present application will be described in detail below with reference to the drawings by way of embodiments. It should be noted that the description of these embodiments is used to help understand the present application, and does not constitute a limitation on the present application. In some examples, since some embodiments belong to prior art or conventional technology, they are not described or not described in detail.

[0023] In addition, the technical features described in this paper, or the steps in all the methods or processes disclosed, can be combined in any suitable way in one or more embodiments, except for mutually exclusive features and / or steps. It is easy for those skilled in the art to understand that the order of steps or operations of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only used for illustration and does not imply that it is required to follow a certain order, unless it is explicitly stated that it is required to follow a certain order.

[0024] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "coupling" said in this application include direct and indirect connection (coupling) under reasonable circumstances (not self-contradictory).

[0025] The following will be described in detail in combination with the drawings.

[0026] Embodiment 1

[0027] The present application provides a high-hardness ore crushing device, which comprises a material collecting shell 1, a support frame 2, a support table 3, a rotating support assembly 4, a rotating crushing cone shell 5, a hydraulic crushing drill 6, a mounting frame 7, a protective cover 8 and a high-torque driving unit 9.

[0028] According to Figs. 1-2In the shown specific embodiment, the aggregate shell 1 is supported on the support frame 2. A support table 3 is inserted at the bottom of the aggregate shell 1. The support table 3 can be supported on the same installation plane as the support frame 2, thereby providing a stable installation plane and support plane for the rotary support assembly 4, so that it can stably support the rotary support assembly 4. The rotary support assembly 4 can stably support the rotary crushing cone shell 5 in the aggregate shell 1 while maintaining the rotatability of the rotary crushing cone shell 5. Therefore, the rotary crushing cone shell 5 can occur around the shaft relative rotation of the hydraulic crushing drill 6 while the hydraulic crushing drill 6 is inserted into the conical cavity 52, so that the rotary crushing cone shell 5 and the hydraulic crushing drill 6 cooperatively realize relative rotation and relative close extrusion to accelerate the crushing of high-hard ore, improve the crushing speed and efficiency. The mounting frame 7 capable of suspending the hydraulic crushing drill 6 above the rotary crushing cone shell 5 is also supported on the support frame 2. The protective cover 8 capable of lifting to shield the opening of the rotary crushing cone shell 5 and the high-torque drive unit 9 driving the rotary crushing cone shell 5 to rotate are also provided on the mounting frame 7. The rotary crushing cone shell 5 and the hydraulic crushing drill 6 provided in the application can cooperatively drill and crush the ore, thereby using the cooperation of multiple forces to accelerate the crushing speed of high-hard ore and improve the efficiency of crushing processing. Compared with the traditional manual knocking type crushing method, the drilling and expansion of the hydraulic crushing drill 6 can force the internal stress of the ore to change and make the ore crack from the inside out, reduce the difficulty of high-hard ore crushing, improve the speed and efficiency of crushing processing, and improve the safety of crushing processing. In addition, the application is used to pre-transfer large-size high-hard ore for screening, so that the large-size high-hard ore is transported to the rotary crushing cone shell 5 from the guide plate groove, and then the rotary crushing cone shell 5 and the hydraulic crushing drill 6 are cooperatively moved to complete the crushing processing of the ore, effectively replacing manual knocking crushing, and can efficiently complete the pre-crushing of high-hard ore to reduce the size of the ore, so that the output ore can have a suitable volume to be input into a conventional ore crushing equipment from the feed inlet, avoiding the problem that the ore is too large to be received by the conventional crushing system and cannot be crushed.

[0029] Preferably, the aggregate shell 1 is provided with an inclined bottom plate 11 inside the shell in a manner capable of collecting and directing the broken ore discharged from the rotating shell 51. Further preferably, a discharge port 12 is further provided on the low side of the inclined bottom plate 11 and penetrates the side shell wall of the aggregate shell 1. Specifically, the broken ore in the annular chamber between the aggregate shell 1 and the rotating shell 51 can roll along the inclined bottom plate 11 due to its own gravity and the initial movement force when discharged from the rotating shell 51, and then discharged from the discharge port 12. When there is part of the ore that is not effectively discharged, the operator can push the ore to slide along the inclined surface by inserting a push rod or the like structure from the top opening of the aggregate shell 1 during the intermittent period when the crushing work is not performed. Preferably, a conveyor belt can be provided below the discharge port 12 to direct the broken ore to the crusher for further fine crushing of the ore.

[0030] Preferably, the rotating support assembly 4 includes a turntable bearing 41, an auxiliary support column 42, and a support roller 43. Preferably, the turntable bearing 41 is installed between the rotating shell 51 and the support table 3 in a manner that defines the relative position of the rotating shell 51 and the support table 3 in the axial direction, so that the upper rotor of the turntable bearing 41 is connected to the bottom surface of the rotating shell 51. Preferably, the lower rotor of the turntable bearing 41 is connected to the top surface of the support table 3, so that the coaxially arranged rotating shell 51 and support table 3 can rotate relative to each other. Specifically, the turntable bearing 41 is a conventional mechanical component, and this application will not be described in detail. Preferably, the auxiliary support column 42 is supported on the support table 3 in a ring-shaped manner around the turntable bearing 41. Further preferably, the axial upper end of the auxiliary support column 42 is connected with the support roller 43 which rolls against the bottom surface of the rotating shell 51. The auxiliary support column 42 and the support roller 43 can cooperate to support the rotating shell 51, thereby reducing the downward pressure of the rotating shell 51 on the turntable bearing 41, ensuring the rotatability and axial connection capability of the turntable bearing 41, and in particular, the support roller 43 can provide a rolling support, so that the rotating shell 51 maintains a high degree of stability during rotation. Avoiding the downward extrusion and damage to the turntable bearing 41 when it is pressed by the ore. The turntable bearing 41 provided in this application can position the rotating shell 51 in a relative rotatable position on the support table 3 and provide a support force, thereby ensuring the stability of the position of the rotating shell 51 and the smoothness during rotation, and ensuring that the rotating shell 51 can accelerate the crushing of the ore by rotation. The auxiliary support column 42 and the support roller 43 provided in this application can provide a multi-point rolling support structure for the rotating shell 51, further improving the stability of the support of the rotating shell 51 and ensuring the smoothness during movement.

[0031] Preferably, a conical cavity 52 is formed in the rotating shell 51 of the rotating crushing cone shell 5, which can be matched with the rock breaking drill bit 61 of the hydraulic crushing drill 6. Preferably, a converging waist groove 53 is also formed on the outer side of the rotating shell 51, which can define its hourglass-shaped outer contour. Preferably, a plurality of outwardly inclined downward inclined through grooves 511 are annularly and spaced apart on the shell wall of the rotating shell 51 which defines the conical cavity 52. Specifically, the downward inclined through grooves 511 are constructed in a way to construct an expanded state channel. Preferably, a transmission tooth ring 512 is also provided on the top edge of the rotating shell 51, which can be in transmission engagement with the high-torque drive unit 9. Specifically, the transmission tooth ring 512 is sleeved on the rotating shell 51. Further preferably, a mounting ring groove 513 is also formed on the top surface thereof, which accommodates at least part of the protective cover 8. Preferably, a shielding ring plate 514 is also connected to the bottom surface of the rotating shell 51. Specifically, the shielding ring plate 514 is sleeved to the support table 3 at its axially lower end in a way that it can define a dust isolation chamber for mounting the rotating support assembly 4. Preferably, a gap ring pad 515 is also provided on the inner side of the shielding ring plate 514. The rotating shell 51 provided in the present application can cooperatively define the processing position of the ore with the rock breaking drill bit 61, so that the ore is broken by the rock breaking drill bit 61 which is pressed downward in the conical cavity 52, and the rotating shell 51 can rotate around the axis while the rock breaking drill bit 61 is pressed downward to crush the ore, thereby accelerating the crushing movement of the ore, so that the ore subjected to different forces by the rotating shell 51 and the rock breaking drill bit 61 can be crushed more quickly and effectively. The downward inclined through grooves 511 provided in the present application can continuously discharge the ore which has reached a suitable size. The transmission tooth ring 512 provided in the present application can drive the rotating shell 51 to rotate under the action of meshing transmission, so that the rotating shell 51 rotates relative to the rock breaking drill bit 61. The mounting ring groove 513 provided in the present application can cooperatively form an upper extension shielding structure with the protective cover 8, which avoids the safety risk of ore particles splashing during ore crushing. The shielding ring plate 514 and the gap ring pad 515 provided in the present application can form a shielding and isolating structure, and in the case that the rotating shell 51 and the support table 3 can rotate relative to each other, an effective isolation chamber can be formed between the rotating shell 51 and the support table 3, thereby avoiding damage to structures such as the turntable bearing 41 and the support roller 43 by dust.

[0032] Preferably, the rock breaking drill bit 61 of the hydraulic breaking drill 6 is connected with the mounting frame 7 through the hydraulic column 62, so that the rock breaking drill bit 61 is coaxially suspended above the rotary shell 51 in a lifting manner, so that the rock breaking drill bit 61 is adjustably inserted into the conical chamber 52. Preferably, the conical surface of the rock breaking drill bit 61 is provided with a spiral breaking groove 611 and breaking protrusions 612 arranged along the spiral line in a spaced manner. The rock breaking drill bit 61 can be driven by the hydraulic column 62 to lift, so as to be inserted into the high-hardness ore rotating with the rotary shell 51, and then efficiently inserted and cracked, so that the ore is quickly broken by the rock breaking drill bit 61. Preferably, the hydraulic column 62 can be selected from a DWX suspended column or a DYTP electro-hydraulic push rod and the like industrial-grade telescopic push rod with large thrust. The rock breaking drill bit 61 provided in the application can be driven by the hydraulic column 62 to maintain a relatively large feeding pressure while cooperating with the rotary shell 51 to realize rotary drilling movement, thereby efficiently breaking the high-hardness ore. The rock breaking drill bit 61 of the application is provided with a spiral breaking groove 611 and breaking protrusions 612 on the surface, so that the uneven surface of the drill bit is used to accelerate the shaking and impact of the ore during drilling and cracking, thereby accelerating the breaking of the ore.

[0033] Preferably, the protective cover 8 includes telescopic adjusting rods 81 connected with the mounting frame 7 and arranged in a circumferential direction in a spaced manner, and a ring cover 82 connected to the axial lower end of the telescopic adjusting rods 81 and adjustably inserted into the ring groove 513. Preferably, the plurality of telescopic adjusting rods 81 can be synchronously telescoped to drive the ring cover 82 to move up and down. Preferably, the telescopic adjusting rod 81 can be a high-precision electric telescopic rod of GET39S type. The ring cover 82 provided in the application can construct an upwardly extending and surrounding barrier structure above the rotary shell 51, so as to intercept the splashing ore and improve the safety during breaking.

[0034] Preferably, the high-torque driving unit 9 includes a rotary tooth 91 engaged with the transmission tooth ring 512, a high-torque driving motor 92 driving the rotary tooth 91 to rotate, and a mounting table 93 connecting the high-torque driving motor 92 with the mounting frame 7. Specifically, the mounting table 93 is connected with the mounting frame 7, thereby providing a mounting surface for the high-torque driving motor 92, so that the high-torque driving motor 92 can be suspendedly mounted in a state that the rotary tooth 91 is engaged with the transmission tooth ring 512, thereby driving the rotary shell 51 to rotate. Preferably, the high-torque driving motor 92 can be an asynchronous motor of YRKK5603 type with a protection level of IP44 / IP54, high starting torque, high temperature resistance and continuous high-intensity operation.

[0035] The hydraulic column 62, the telescopic adjusting rod 81, the high-torque driving motor 92 and other electric elements provided in the application are electrically connected with the controller and the power supply, the control mode of the application is controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, the provision of the power supply also belongs to the common knowledge in the art, and the utility model is only used for protecting the mechanical device and the mechanical structural features, so the utility model will not explain the control mode and the circuit connection in detail.

[0036] The utility model is not limited to the above optional implementation, anyone can draw other various forms of products under the enlightenment of the utility model, but no matter make any change in shape or structure, any technical scheme falling into the scope defined by the claims of the utility model falls within the protection scope of the utility model. The person skilled in the art should understand that the utility model specification and its drawings are all illustrative and not constitute the limitation of the claims. The protection scope of the utility model is defined by the claims and its equivalents. In the full text, the features guided by "preferably" are only optional ways and should not be understood as necessarily setting, so the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A high-hardness ore crushing device, comprising a collecting shell (1) and a support frame (2) supporting the collecting shell (1), characterized in that, a support table (3) is inserted at the bottom of the collecting shell (1), and a rotary crushing cone shell (5) is supported on the top surface of the support table (3) through a rotating support assembly (4), a mounting frame (7) capable of suspending a hydraulic crushing drill (6) above the rotary crushing cone shell (5) is further supported on the support frame (2), and a protective cover (8) that can shield the opening of the rotary crushing cone shell (5) in a liftable manner and a high-torque driving unit (9) that drives the rotary crushing cone shell (5) to rotate are further provided on the mounting frame (7).

2. The high-hardness ore crushing apparatus according to claim 1, wherein A conical cavity (52) capable of matching the rock-breaking drill bit (61) of the hydraulic crushing drill (6) is formed in the rotary shell (51) of the rotary crushing cone shell (5), and a converging waist groove (53) capable of defining its hourglass-shaped outer contour is further formed on the outside of the rotary shell (51).

3. The apparatus for crushing high-hardness ore according to claim 2, wherein A plurality of downward inclined through grooves (511) are annularly and spacedly provided on the shell wall of the rotary shell (51) that defines the conical cavity (52), and the downward inclined through grooves (511) are constructed in a manner of constructing an expanded state channel; A transmission tooth ring (512) capable of transmission engagement with the high-torque driving unit (9) is further provided on the top surface edge of the rotary shell (51), and a fitting ring groove (513) accommodating at least part of the protective cover (8) is further formed on the top surface thereof.

4. The apparatus for crushing high-hardness ore according to claim 3, wherein A shielding ring plate (514) is connected to the bottom surface of the rotary shell (51), the shielding ring plate (514) is fitted to the support table (3) at its axially lower end in a manner that it can define a dustproof cavity for mounting the rotating support assembly (4), and a gap ring pad (515) is further provided on the inner side surface of the shielding ring plate (514).

5. The apparatus for crushing high-hardness ore according to claim 4, wherein The rotating support assembly (4) comprises a rotating table bearing (41), an auxiliary support column (42), and a support roller (43), wherein, The rotating table bearing (41) is installed between the rotary shell (51) and the support table (3) in a manner of defining the relative position of the rotary shell (51) and the support table (3) in the axial direction; The auxiliary support column (42) is annularly and spacedly supported on the support table (3) in a manner of surrounding the rotating table bearing (41), and the axially upper end of the auxiliary support column (42) is connected with the support roller (43) that rolls against the bottom surface of the rotary shell (51).

6. The apparatus for crushing high-hardness ore according to claim 5, wherein The collecting shell (1) is provided with an inclined bottom plate (11) in a manner that it can collect the ores discharged from the rotary shell (51), and a discharge port (12) that penetrates the side shell wall of the collecting shell (1) is further provided on the low side of the inclined bottom plate (11).

7. The apparatus for crushing high-hardness ore according to claim 6, wherein The rock-breaking drill bit (61) of the hydraulic crushing drill (6) is connected with the mounting frame (7) through a hydraulic column (62), so that the rock-breaking drill bit (61) is liftable and coaxially suspended above the rotary shell (51).

8. The apparatus for crushing high-hardness ore according to claim 7, wherein The conical surface of the rock breaking drill bit (61) is provided with spiral breaking grooves (611) and breaking protrusions (612) arranged along the spiral direction.

9. The apparatus for crushing high-hardness ore according to claim 8, wherein The protective cover (8) comprises telescopic adjusting rods (81) connected with the mounting frame (7) and arranged in a ring direction, and a ring cover body (82) connected to the axial lower end of the telescopic adjusting rods (81) and adjustably inserted into the assembly ring groove (513).

10. The apparatus for crushing high-hardness ore according to claim 9, wherein The high-torsion driving unit (9) comprises rotating teeth (91) engaged with the transmission tooth ring (512), a high-torsion driving motor (92) driving the rotating teeth (91) to rotate, and a mounting table (93) connecting the high-torsion driving motor (92) with the mounting frame (7).

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