A crushing treatment device for metallurgical metal ore

Abstract

The present application relates to the technical fields of crushing device, and discloses a metallurgical metal ore crushing treatment equipment, which comprises a casing, the casing is provided with a feeding hopper with an opening upward, a static crushing wall is arranged in the feeding hopper, an eccentric crushing device is arranged at the lower side of the static crushing wall and is in extrusion with the lower surface of the static crushing wall, the eccentric crushing device comprises a main shaft, a cone support body and a dynamic crushing cone, the cone support body is fixedly arranged outside the main shaft, the dynamic crushing cone is sleeved on the upper side of the cone support body, the dynamic crushing cone is elastic, a deformation space is formed between the upper part of the dynamic crushing cone and the cone support body, the lower part of the dynamic crushing cone is tightly abutted with the cone support body to form a friction force combining part, the dynamic crushing cone is sleeved outside the main shaft and elastically moves along the axis of the main shaft, after the ore is jammed, the dynamic crushing cone elastically vibrates to loosen the ore, thereby preventing the ore from being jammed.

Description

Technical Field

[0001] This invention belongs to the technical field of crushing devices, and more specifically, relates to a crushing and processing equipment for metallurgical metal ores. Background Technology

[0002] Ore crushers come in various types depending on the particle size and hardness of the material being processed, such as jaw crushers, hammer crushers, impact crushers, and cone crushers. For metal ores used in metallurgy, different ores have different levels of hardness. For certain harder metal ores, using a cone crusher presents the following technical drawbacks:

[0003] Existing cone crushers have a certain probability of jamming when encountering ores with high hardness, causing severe impact to the transmission components and resulting in damage to mechanical parts such as transmission teeth and transmission shafts, reducing service life and increasing maintenance costs. Existing cone crushers do not have corresponding maintenance mechanisms to deal with the above-mentioned ore jamming situation. Once the machine is jammed, it requires timely manual maintenance, which reduces production efficiency and makes maintenance inefficient. Summary of the Invention

[0004] This invention provides a crushing and processing device for metallurgical ore, which overcomes the above-mentioned defects in the prior art.

[0005] The purpose and effectiveness of the metallurgical metal ore crushing and processing equipment of the present invention are achieved by the following specific technical means:

[0006] A crushing and processing device for metallurgical ore includes a casing with an upward-opening feed hopper. A static crushing wall is disposed inside the feed hopper. An eccentric crushing device is disposed below the static crushing wall, pressing against its lower surface. The eccentric crushing device includes a main shaft, a cone support, and a moving crushing cone. The cone support is fixedly disposed outside the main shaft. The moving crushing cone is fitted onto the upper side of the cone support and is elastic. A deformation space is formed between the upper part of the moving crushing cone and the cone support, and the lower part of the moving crushing cone abuts against the cone support to generate friction. The housing has a force-connecting part, in which the moving crushing cone is sleeved outside the main shaft and moves elastically along the axis of the main shaft. The housing also has a power kit that drives the main shaft to rotate eccentrically. A reset cavity is provided inside the main shaft, and a through hole is provided in the reset cavity extending upward. A central connecting rod is provided in the through hole, and one end of the central connecting rod extending outward from the through hole is connected to a jump conversion device. The jump conversion device converts the speed difference between the main shaft and the moving crushing cone into a longitudinal impact force applied to the moving crushing cone. An elastic reset part is provided at one end of the central connecting rod extending into the reset cavity.

[0007] A further technical solution is provided, wherein the jumping conversion device includes a centrifugal disc, an outer limiting plate, and an inner limiting plate. The centrifugal disc is sleeved on the top of the main shaft. The outer limiting plate is disposed on the upper side of the centrifugal disc, and the inner limiting plate is disposed on the lower side of the centrifugal disc. The centrifugal disc has a longitudinal limiting hole. The outer wall of the central connecting rod is provided with a rotation-limiting spline shaft. The rotation-limiting spline shaft passes through the limiting hole, and the limiting hole restricts the rotation of the rotation-limiting spline shaft. The central connecting rod is connected to the outer limiting plate and the inner limiting plate respectively. The outer wall of the central connecting rod is also provided with a first half-thread, and the inner wall of the through hole has a second half-thread that mates with the first half-thread.

[0008] A further technical solution is provided, wherein the cone support has an elastic cavity inside, the cone support includes an internal limiting body and an external elastic cone, a positioning cone is provided on the outer wall of the main shaft, the limiting body cooperates with the cone surface of the positioning cone, the outer surface of the elastic cone has a first cone surface and a second cone surface connected to each other from top to bottom, the taper of the first cone surface is greater than the taper of the second cone surface, so that the deformation space is formed between the first cone surface and the moving crushing cone, and the second cone surface is in close contact with the moving crushing cone.

[0009] A further technical solution includes a central cavity inside the spindle, a central screw inside the central cavity, a threaded connection between the bottom of the central cavity and the bottom of the central screw, an annular gap between the upper part of the central screw and the central cavity, an outer sliding ring and an inner sliding ring slidably disposed within the annular gap, a preload spring disposed within the annular gap, the preload spring abutting against the inner sliding ring, and the annular gap communicating with the elastic cavity.

[0010] A further technical solution involves an annular groove formed on the outer wall surface of the main shaft near the elastic cavity, with several elastic plates stacked within the annular groove. A compressible passage gap is formed between adjacent elastic plates, connecting the annular gap and the elastic cavity. An adjusting cylinder is sleeved on the main shaft, abutting against the upper surface of the elastic plate. The elastic cone has a central opening, and the adjusting cylinder abuts against the lower edge of the central opening.

[0011] In a further technical solution, the elastic plate itself is a circular ring, and one side of the circular ring has an array of elastic strips arranged circumferentially. The elastic strips extend radially along the circular ring, and a flow hole is formed between two adjacent elastic strips. The flow hole is a passage gap. Several circumferentially distributed liquid flow intervals are opened at the inner edge of the circular ring, and the liquid flow intervals correspond one-to-one with the flow holes.

[0012] A further technical solution is provided in which a transverse shaft housing is provided at the bottom of the housing, a transverse shaft is rotatably provided inside the transverse shaft housing, a pulley is fixedly provided outside the transverse shaft, a first bevel gear is fixedly provided inside the transverse shaft, a longitudinal shaft housing is provided at the bottom of the housing, an eccentric sleeve is provided inside the longitudinal shaft housing, a second bevel gear is fixedly connected outside the eccentric sleeve, the second bevel gear meshes with the first bevel gear, and the main shaft is provided inside the eccentric sleeve.

[0013] A further technical solution is that a limiting telescopic rod is fixedly installed inside the eccentric sleeve, the shaft of the limiting telescopic rod is provided with a limiting spline shaft, the side of the central screw facing the limiting spline shaft has a limiting spline groove, and the limiting spline shaft extends into the limiting spline groove to limit the rotation of the central screw.

[0014] A further technical solution is provided, wherein the housing includes a movable seat and a base distributed vertically, a drive motor is mounted on the base located on the lower side, the shaft of the drive motor is provided with a drive tooth, an external gear is fixedly mounted on the outside of the movable seat located on the upper side, the external gear meshes with the drive tooth, and the static crushing wall is fixedly mounted on the inner wall of the movable seat.

[0015] In a further technical solution, a first connecting ring is provided on the outside of the base, and a second connecting ring corresponding to the first connecting ring is provided on the outer wall of the movable seat. A sliding connecting shaft is provided between the first connecting ring and the second connecting ring. An elastic reset mechanism is installed on the outer wall of the base, and the elastic reset mechanism is connected to the sliding connecting shaft to adjust the distance between the base and the movable seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention utilizes a jump conversion device. When the power kit is activated, it drives the main shaft to rotate eccentrically. The main shaft then drives the moving crushing cone to rotate eccentrically, while the stationary crushing wall remains stationary. The moving crushing cone rotates below the stationary crushing wall, thus achieving the function of crushing minerals. Different metal ores have different hardnesses. When a certain metal ore has a high hardness, the ore is easily stuck between the moving crushing cone and the stationary crushing wall. In this case, the moving crushing cone is stationary relative to the stationary crushing wall. The driving force applied by the main shaft to the cone support overcomes the friction between the moving crushing cone and the cone support, causing the cone support to begin rotating. The main shaft can continue to rotate, thereby reducing the impact on the power kit. This protects the power assembly; at this time, the moving crushing cone drives the central connecting rod to remain fixed, and relative rotation occurs between the main shaft and the central connecting rod. The jump conversion device converts the above relative rotation into a longitudinal impact force applied to the moving crushing cone. The moving crushing cone is subjected to a downward impact force, and the moving crushing cone deforms toward the upper surface of the cone support. The deformation space volume decreases, which increases the space between the moving crushing cone and the static crushing wall in a short time, loosening the clamping force on the ore and playing a role in preventing jamming. The elastic reset part provides the moving crushing cone with an upward reset force, pushing the loosened ore upward so that it can be re-crushed.

[0018] This invention discloses a metallurgical crushing and processing device for metal ores. By improving the main shaft and cone support, a central screw is installed inside the main shaft, forming an annular gap between the central screw and the inner wall of the main shaft. An outer sliding ring, an inner sliding ring, and a preload spring are installed within this annular gap. When the volume of the elastic cavity decreases due to pressure, liquid inside the elastic cavity flows into the annular gap. The liquid transmits pressure to the outer sliding ring, reducing the high-pressure gas space between the outer and inner sliding rings to provide a stronger reverse thrust. During this process, the inner sliding ring compresses the preload spring, which in turn provides a reverse thrust to the liquid, thus providing a reaction force for the deformation of the moving crushing cone. By adjusting the compression of the preload spring, the device can adapt to ores of different hardness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 yes Figure 1 The right view;

[0021] Figure 3 yes Figure 1 Top view;

[0022] Figure 4 yes Figure 1 The bottom view;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 6 yes Figure 1 A longitudinal sectional view;

[0025] Figure 7 This is a schematic diagram of the structure of the main shaft 25, the cone support 26, and the moving crushing cone 27 combined in this invention;

[0026] Figure 8 This is a schematic diagram of the structure of the first half-thread and the second half-thread in this invention.

[0027] Figure 9 This is an enlarged schematic diagram of the internal structure of the main shaft 25 in this invention;

[0028] Figure 10 This is an enlarged schematic diagram of the structure at the bottom of the main shaft 25 in this invention;

[0029] Figure 11 This is an enlarged schematic diagram of the structure of the elastic plate 54 of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Feed hopper; 11. Pulley; 12. Machine housing; 13. Longitudinal shaft housing; 14. Horizontal shaft housing; 16. Drive motor; 17. External gear; 18. Elastic reset mechanism; 19. Base; 20. Movable seat; 21. Horizontal shaft; 22. First bevel gear; 23. Second bevel gear; 24. Eccentric sleeve; 25. Main shaft; 26. Cone support body; 27. Moving crushing cone; 29. ​​Static crushing wall; 30. Elastic cavity; 31. Positioning cone; 32. Limiting body; 33. Elastic cone; 34. Deformation space. 35. Central cavity; 36. Central screw; 38. Centrifugal disc; 39. Limiting telescopic rod; 40. Limiting spline groove; 41. Limiting spline shaft; 42. Central connecting rod; 43. Outer limiting plate; 44. Inner limiting plate; 45. Rotation limiting spline shaft; 48. Reset cavity; 49. Reset slider; 51. Preload spring; 52. Inner sliding ring; 53. Annular gap; 54. Elastic plate; 55. Adjusting cylinder; 56. Outer sliding ring; 57. Elastic strip; 60. Liquid flow interval; 61. Flow hole. Detailed Implementation

[0032] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0033] Example: As attached Figure 1 To be continued Figure 11The image shows a crushing and processing device for metallurgical ore, comprising a housing 12, the housing 12 having an upward-opening feed hopper 10, a static crushing wall 29 disposed inside the feed hopper 10, and an eccentric crushing device disposed below the static crushing wall 29, which is pressed against the lower surface of the static crushing wall 29. The eccentric crushing device includes a main shaft 25, a cone support 26, and a moving crushing cone 27. The cone support 26 is fixedly disposed outside the main shaft 25, and the moving crushing cone 27 is sleeved on the upper side of the cone support 26. The moving crushing cone 27 itself is elastic, and a deformation space 34 is formed between the upper part of the moving crushing cone 27 and the cone support 26. The lower part of the moving crushing cone 27 is tightly abutted against the cone support 26 to form a frictional contact part. The moving crushing cone 27 is sleeved outside the main shaft 25 and moves elastically along the axis of the main shaft 25. The housing 12 also has a power kit for driving the main shaft 25 to rotate eccentrically.

[0034] A reset cavity 48 is provided inside the main shaft 25. The reset cavity 48 extends upward and has a through hole. A central connecting rod 42 is provided inside the through hole. One end of the central connecting rod 42 extending outward from the through hole is connected to a jump conversion device. The jump conversion device converts the speed difference between the main shaft 25 and the moving crushing cone 27 into a longitudinal impact force applied to the moving crushing cone 27. An elastic reset part is provided at one end of the central connecting rod 42 extending into the reset cavity 48.

[0035] In this embodiment, the power kit is activated, driving the main shaft 25 to rotate eccentrically. The main shaft 25 drives the moving crushing cone 27 to rotate eccentrically, while the stationary crushing wall 29 remains stationary. The moving crushing cone 27 rotates below the stationary crushing wall 29 to achieve the function of crushing minerals. Different metal ores have different hardness. When a certain metal ore has a high hardness, the ore is easily stuck between the moving crushing cone 27 and the stationary crushing wall 29. At this time, the moving crushing cone 27 is stationary relative to the stationary crushing wall 29. The driving force applied by the main shaft 25 to the cone support 26 overcomes the friction between the moving crushing cone 27 and the cone support 26, and the cone support 26 begins to rotate. At this time, the moving crushing cone 27 remains stationary, while the main shaft 25 can continue to rotate, thereby reducing the impact on the moving crushing cone 27. The impact of the power kit protects the power kit. At this time, the moving crushing cone 27 drives the central connecting rod 42 to remain fixed. The main shaft 25 and the central connecting rod 42 rotate relative to each other. The jumping conversion device converts the relative rotation into a longitudinal impact force applied to the moving crushing cone 27. The moving crushing cone 27 is subjected to a downward impact force and deforms toward the upper surface of the cone support 26. The volume of the deformation space 34 decreases, which increases the space between the moving crushing cone 27 and the static crushing wall 29 in a short time, loosening the clamping force on the ore and playing a role in preventing jamming. The elastic reset part provides the moving crushing cone 27 with an upward reset force, pushing the loosened ore upward so that it can be crushed again.

[0036] In specific implementation, the elastic reset part is a spring installed in the reset cavity 48, the central connecting rod 42 extends into the reset cavity 48 and is connected to the reset slider 49, the spring abuts against the reset slider 49 upward, providing upward pressure to the reset slider 49.

[0037] In this embodiment, the jumping conversion device includes a centrifugal disc 38, an outer limiting plate 43, and an inner limiting plate 44. The centrifugal disc 38 is sleeved on the top of the main shaft 25. The outer limiting plate 43 is disposed on the upper side of the centrifugal disc 38, and the inner limiting plate 44 is disposed on the lower side of the centrifugal disc 38. The centrifugal disc 38 has a longitudinal limiting hole. The outer wall of the central connecting rod 42 is provided with a rotation-limiting spline shaft 45. The rotation-limiting spline shaft 45 passes through the limiting hole, and the limiting hole restricts the rotation of the rotation-limiting spline shaft 45. The central connecting rod 42 is connected to the outer limiting plate 43 and the inner limiting plate 44 respectively. The outer wall of the central connecting rod 42 is also provided with a first half-thread, and the inner wall of the through hole has a second half-thread that mates with the first half-thread.

[0038] In specific implementation, the outer wall of the central connecting rod 42 has two opposing first half-threads with a clearance between them, and the inner wall of the through hole has two opposing second half-threads. In the default state, the first half-threads and the second half-threads are engaged with each other. At this time, the central connecting rod 42 and the main shaft 25 rotate relative to each other. Since the two are in a threaded engagement relationship at this time, the central connecting rod 42 pushes the reset slider 49 down and squeezes the spring. During this process, the central connecting rod 42 drives the centrifugal disk 38 and the moving crushing cone 27 to squeeze downward through the outer limit plate 43, so as to reduce the volume of the deformation space 34, increase the space between the moving crushing cone 27 and the static crushing wall 29, loosen the clamping force on the ore, and play a role in preventing jamming.

[0039] After the central connecting rod 42 and the main shaft 25 rotate 90 degrees, the first and second half threads disengage from the threaded engagement. Under the push of the spring, the central connecting rod 42 returns to its original position and bounces back. The central connecting rod 42 impacts the centrifugal disc 38 upward through the inner limit plate 44. The centrifugal disc 38 drives the crushing cone 27 to rebound rapidly upward, so as to push the jammed ore upward to reset, so that the uncrushed ore can be further crushed.

[0040] In other embodiments of this application, the jumping conversion device is a reciprocating hydraulic drive rod, which is located inside the main shaft, with its shaft end extending upward and connected to the moving crushing cone 27 to drive the moving crushing cone 27 to deform longitudinally.

[0041] Preferably, the cone support 26 has an elastic cavity 30 inside, the cone support 26 includes an internal limiting body 32 and an external elastic cone 33, the outer wall of the main shaft 25 is provided with a positioning cone 31, the limiting body 32 and the positioning cone 31 are engaged with each other, the outer surface of the elastic cone 33 has a first cone surface and a second cone surface connected from top to bottom, the taper of the first cone surface is greater than the taper of the second cone surface, so that the deformation space 34 is formed between the first cone surface and the moving crushing cone 27, and the second cone surface is in close contact with the moving crushing cone 27.

[0042] In this embodiment, the moving crushing cone 27 and the stationary crushing wall 29 work together to crush the ore. When the hardness of the ore exceeds the preset range, the moving crushing cone 27 is compressed, the volume of the deformation space 34 decreases, the first cone surface is in complete contact with the moving crushing cone 27, the first-level elastic support force is insufficient to support the pressure on the moving crushing cone 27, the pressure continues to push the elastic cone 33 to deform inward, the elastic cone 33 compresses the volume of the elastic cavity 30, and the elastic cone 33 provides the second-level elastic support force for the deformation space 34.

[0043] Preferably, the spindle 25 has a central cavity 35 inside, and a central screw 36 is provided inside the central cavity 35. The bottom of the central cavity 35 is connected to the bottom of the central screw 36 by a thread. An annular gap 53 is formed between the upper part of the central screw 36 and the central cavity 35. An outer sliding ring 56 and an inner sliding ring 52 are slidably disposed in the annular gap 53. A preload spring 51 is provided in the annular gap 53, and the preload spring 51 abuts against the inner sliding ring 52. The annular gap 53 communicates with the elastic cavity 30.

[0044] In this embodiment, when the volume of the elastic cavity 30 is reduced by pressure, the liquid inside the elastic cavity 30 flows into the annular gap 53. The liquid transmits pressure to the outer sliding ring 56, and the high-pressure gas space between the outer sliding ring 56 and the inner sliding ring 52 is reduced to provide a stronger reverse thrust. During this process, the inner sliding ring 52 will squeeze the preload spring 51, and the preload spring 51 will also provide a reverse thrust to the liquid, thereby providing a reaction force for the deformation of the moving crushing cone 27.

[0045] Preferably, an annular groove is formed on the outer wall surface of the main shaft 25 near the elastic cavity 30, and a plurality of elastic plates 54 are stacked in the annular groove. A volume-compressible passage gap is formed between two adjacent elastic plates 54, and the passage gap connects the annular gap 53 and the elastic cavity 30. An adjusting cylinder 55 is sleeved on the main shaft 25, and the adjusting cylinder 55 abuts against the upper surface of the elastic plate 54. The elastic cone 33 has a central opening, and the adjusting cylinder 55 abuts against the lower edge of the central opening.

[0046] In this embodiment, when the elastic cone 33 is compressed, the central opening of the elastic cone 33 pushes the regulating cylinder 55 downward, and the regulating cylinder 55 squeezes several stacked elastic plates 54 to reduce the gap between the elastic plates 54, thereby increasing the damping of the liquid flowing into the annular gap 53 inside the elastic cavity 30, and thus consuming the mechanical energy received by the dynamic crushing cone 27 as heat energy.

[0047] Preferably, the elastic plate 54 is a circular ring, and one side of the circular ring is circumferentially arrayed with elastic strips 57. The elastic strips 57 extend radially along the circular ring, and a flow hole 61 is formed between two adjacent elastic strips 57. The flow hole 61 is a passage gap. A plurality of circumferentially distributed liquid flow intervals 60 are provided at the inner edge of the circular ring, and the liquid flow intervals 60 correspond one-to-one with the flow holes 61.

[0048] In this embodiment, the liquid in the elastic cavity 30 enters the liquid flow interval 60 through the flow hole 61 and eventually flows into the annular gap 53.

[0049] Preferably, a transverse shaft housing 14 is provided at the bottom of the housing 12, and a transverse shaft 21 is rotatably arranged inside the transverse shaft housing 14. A pulley 11 is fixedly arranged outside the transverse shaft 21, and a first bevel gear 22 is fixedly arranged inside the transverse shaft 21. A longitudinal shaft housing 13 is provided at the bottom of the housing 12, and an eccentric sleeve 24 is arranged inside the longitudinal shaft housing 13. A second bevel gear 23 is fixedly connected to the outside of the eccentric sleeve 24. The second bevel gear 23 meshes with the first bevel gear 22, and the main shaft 25 is arranged inside the eccentric sleeve 24.

[0050] In this embodiment, an external motor is provided. The motor drives the pulley 11 to rotate via a belt. The pulley 11 drives the transverse shaft 21 to rotate. The transverse shaft 21 drives the eccentric sleeve 24 to rotate through the meshing of the first bevel gear 22 and the second bevel gear 23. Finally, the eccentric sleeve 24 drives the internal main shaft 25 to rotate eccentrically.

[0051] Preferably, a limiting telescopic rod 39 is fixedly installed inside the eccentric sleeve 24. The shaft of the limiting telescopic rod 39 is provided with a limiting spline shaft 41. The central screw 36 has a limiting spline groove 40 on the side facing the limiting spline shaft 41. The limiting spline shaft 41 extends into the limiting spline groove 40 to limit the rotation of the central screw 36.

[0052] In this embodiment, when the limiting telescopic rod 39 extends, the limiting spline shaft 41 extends into the limiting spline groove 40, keeping the central screw 36 fixed while the main shaft 25 continues to rotate. Relative rotation occurs between the main shaft 25 and the central screw 36. Due to the lower thread engagement between the main shaft 25 and the central screw 36, the central screw 36 pushes the inner sliding ring 52 downwards and compresses the preload spring 51, increasing the preset force of the preload spring 51 to handle ores of varying hardness. For example, if a certain metal ore is hard, the preset force of the preload spring 51 is increased, and liquid flows into the annular gap 53, pushing the outer sliding ring 56 closer to the inner sliding ring 52 until the outer sliding ring 56 reaches its limit position. Even then, the pressure cannot exceed the preset force of the preload spring 51, facilitating the crushing of the ore. If the ore is too hard to crush, the pressure will exceed the preset force of the preload spring 51, providing a buffering and protective effect.

[0053] Preferably, the housing 12 includes a movable seat 20 and a base 19 distributed vertically. A drive motor 16 is installed on the base 19 located on the lower side. The shaft of the drive motor 16 is provided with a drive tooth. An external gear 17 is fixedly installed on the outside of the movable seat 20 located on the upper side. The external gear 17 meshes with the drive tooth. The static crushing wall 29 is fixedly installed on the inner wall of the movable seat 20.

[0054] In this embodiment, the drive motor 16 is started, and the external gear 17 is driven to rotate through the active gear. The external gear 17 drives the internal static crushing wall 29 to rotate, so as to increase the rotational speed between the moving crushing cone 27 and the static crushing wall 29, and further improve the crushing efficiency.

[0055] Preferably, a first connecting ring is provided on the outside of the base 19, and a second connecting ring corresponding to the first connecting ring is provided on the outer wall of the movable seat 20. A sliding connecting shaft is provided between the first connecting ring and the second connecting ring. An elastic reset mechanism 18 is installed on the outer wall of the base 19. The elastic reset mechanism 18 is connected to the sliding connecting shaft to adjust the distance between the base 19 and the movable seat 20.

[0056] In this embodiment, the elastic reset mechanism 18 provides elastic force to the sliding connecting shaft, which elastically connects the base 19 and the movable seat 20. When a large volume of ore gets stuck between the moving crushing cone 27 and the static crushing wall 29, the ore pushes the static crushing wall 29 upward, and the static crushing wall 29 drives the movable seat 20 to move upward. The movable seat 20 transmits pressure to the elastic reset mechanism 18 through the second connecting ring and the sliding connecting shaft. The elastic reset mechanism 18 itself is elastically deformed under pressure, which protects the moving crushing cone 27 and the static crushing wall 29.

[0057] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A crushing apparatus for metallurgical metal ores, comprising a housing having an upwardly open feed hopper, a stationary crushing wall provided in the feed hopper, and an eccentric crushing device provided at the lower side of the stationary crushing wall so as to be pressed against the lower surface of the stationary crushing wall, characterized in that: The eccentric crushing device comprises a main shaft, a cone support body and a dynamic crushing cone, the cone support body is fixedly arranged outside the main shaft, the dynamic crushing cone is sleeved on the upper side of the cone support body, the dynamic crushing cone is elastic, a deformation space is formed between the upper part of the dynamic crushing cone and the cone support body, the lower part of the dynamic crushing cone is tightly abutted against the cone support body to form a friction force combining part, the dynamic crushing cone is sleeved outside the main shaft and elastically moves along the axis of the main shaft, the shell further has a power set for driving the eccentric rotation of the main shaft, a reset cavity is arranged in the main shaft, the reset cavity extends upward and is provided with a through hole, a center connecting rod is arranged in the through hole, one end of the center connecting rod extending out of the through hole is connected with a jumping conversion device, the jumping conversion device converts the speed difference between the main shaft and the dynamic crushing cone into a longitudinal impact force applied to the dynamic crushing cone, and the other end of the center connecting rod extending into the reset cavity is provided with an elastic reset part. ​ 2. The metallurgical metal ore crushing treatment apparatus according to claim 1, characterized by: The eccentric crushing device comprises a main shaft, a cone support body and a dynamic crushing cone, the cone support body is fixedly arranged outside the main shaft, the dynamic crushing cone is sleeved on the upper side of the cone support body, the dynamic crushing cone is elastic, a deformation space is formed between the upper part of the dynamic crushing cone and the cone support body, the lower part of the dynamic crushing cone is tightly abutted against the cone support body to form a friction force combining part, the dynamic crushing cone is sleeved outside the main shaft and elastically moves along the axis of the main shaft, the shell further has a power set for driving the eccentric rotation of the main shaft, a reset cavity is arranged in the main shaft, the reset cavity extends upward and is provided with a through hole, a center connecting rod is arranged in the through hole, one end of the center connecting rod extending out of the through hole is connected with a jumping conversion device, the jumping conversion device converts the speed difference between the main shaft and the dynamic crushing cone into a longitudinal impact force applied to the dynamic crushing cone, and the other end of the center connecting rod extending into the reset cavity is provided with an elastic reset part.

3. The metallurgical metal ore crushing apparatus according to claim 2, wherein: The cone support body has an elastic cavity inside, the cone support body comprises an internal limiting body and an external elastic cone body, a positioning cone body is arranged on the outer wall of the main shaft, the limiting body is matched with the conical surface of the positioning cone body, the outer surface of the elastic cone body has a first conical surface and a second conical surface connected with each other from top to bottom, the taper of the first conical surface is larger than that of the second conical surface, so that the deformation space is formed between the first conical surface and the dynamic crushing cone, and the second conical surface is tightly abutted against the dynamic crushing cone.

4. The metallurgical metal ore crushing apparatus according to claim 3, wherein: The main shaft has a center cavity inside, a center screw is arranged in the center cavity, the bottom of the center cavity is connected with the bottom of the center screw through threads, an annular gap is formed between the upper part of the center screw and the center cavity, an outer sliding ring and an inner sliding ring are slidably arranged in the annular gap, a pre-tightening spring is arranged in the annular gap, the pre-tightening spring abuts against the inner sliding ring, and the annular gap is communicated with the elastic cavity. The outer wall surface of the main shaft close to the elastic cavity is provided with an annular groove, a plurality of elastic plates are stacked in the annular groove, a volume-compressible through gap is formed between adjacent two elastic plates, the through gap communicates the annular gap and the elastic cavity, a regulating cylinder is sleeved on the main shaft, the regulating cylinder abuts against the upper surface of the elastic plate, and the elastic cone body has a center opening, the regulating cylinder abuts against the lower edge of the center opening.

5. The metallurgical metal ore crushing apparatus according to claim 4, wherein: The elastic plate is a circular ring, and a plurality of elastic strips are arranged in an array along the circumference of one side of the circular ring and extend in the radial direction of the circular ring, and a liquid flow hole is formed between adjacent two elastic strips, that is, a gap, and a plurality of liquid flow gaps are arranged in an array along the circumference of the inner edge of the circular ring and correspond to the liquid flow holes one by one.

6. The metallurgical metal ore crushing apparatus according to claim 5, wherein: The bottom of the machine shell is provided with a horizontal shaft shell in the transverse direction, a horizontal shaft is arranged to rotate in the horizontal shaft shell, a belt pulley is fixedly arranged on the outside of the horizontal shaft, and a first bevel gear is fixedly arranged on the inside of the horizontal shaft. The bottom of the machine shell is provided with a vertical longitudinal shaft shell, an eccentric sleeve is arranged in the longitudinal shaft shell, a second bevel gear is fixedly connected to the outside of the eccentric sleeve, the second bevel gear is engaged with the first bevel gear, and a main shaft is arranged in the inside of the eccentric sleeve.

7. The metallurgical metal ore crushing apparatus according to claim 6, wherein: The eccentric sleeve is fixedly installed with a limiting telescopic rod, a limiting spline shaft is arranged on the shaft of the limiting telescopic rod, the center screw has a limiting spline groove on the side facing the limiting spline shaft, and the limiting spline shaft extends into the limiting spline groove to limit the rotation of the center screw.

8. The metallurgical metal ore crushing apparatus according to claim 7, wherein: The machine shell comprises an upper movable seat and a bottom seat arranged in a vertical direction, a driving motor is installed on the bottom seat at the lower side, a driving gear is arranged on the shaft of the driving motor, an external gear is fixedly installed on the outside of the movable seat at the upper side, the external gear is engaged with the driving gear, and a static crushing wall is fixedly installed on the inner wall of the movable seat.

9. The metallurgical metal ore crushing apparatus according to claim 8, wherein: The bottom seat is provided with a first connecting ring on the outside, the movable seat is provided with a second connecting ring corresponding to the first connecting ring on the outer wall, a sliding connecting shaft is arranged between the first connecting ring and the second connecting ring, an elastic reset mechanism is installed on the outer wall of the bottom seat, and the elastic reset mechanism is connected with the sliding connecting shaft to adjust the distance between the bottom seat and the movable seat.

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