High-speed fine-crushing hydraulic cone crusher

Abstract

The invention relates to the technical field of mining equipment, in particular to a high-speed fine-crushing hydraulic cone crusher which comprises a fixed cone assembly and a screening part. The fixed cone assembly comprises an adjusting seat, an adjusting ring, a rolling mortar wall and a reset mechanism; the adjusting seat is connected with a hydraulic system; the adjusting ring is in threaded connection with the adjusting seat; the rolling mortar wall is connected with the adjusting ring; the reset mechanism is connected between the rack and the adjusting ring; the screening piece is connected with the reset mechanism. When the adjusting ring rotates abnormally, the reset mechanism generates reset torque opposite to the abnormal rotation direction on the adjusting ring to help the adjusting ring to reset, and when the iron passing protection mechanism is triggered, the screening piece conducts lifting motion along with the fixed cone assembly and opens an inlet of the large material channel, so that uncrushed materials roll into the large material channel along a limited route, and the crushing efficiency is improved. Qualified crushed materials are directly discharged from sieve holes of the arc-shaped net; the problems that the fixed cone rotates abnormally before the iron passing protection mechanism is triggered and qualified and unqualified crushed materials are discharged together when the iron passing protection mechanism is triggered are solved.

Description

Technical Field

[0001] The invention relates to the technical field of mining equipment, and in particular to a high-speed fine-crushing hydraulic cone crusher. Background Art

[0002] Fine crushing hydraulic cone crusher is a kind of crushing equipment used in mining, metallurgy, building materials and other industries. After the material is fed into the crushing chamber, the gap between the conical crushing head (i.e., moving cone) and the fixed liner (i.e., fixed cone) will change under the action of eccentric rotation. At this time, the material between the crushing head and the fixed liner will be squeezed and sheared, thus completing the crushing process.

[0003] When the hydraulic cone crusher encounters a material with high hardness or a jamming phenomenon during operation, the hydraulic protection device and spring it is equipped with will actively drive the fixed liner to move up, so that the gap between the crushing head and the fixed liner is increased, thereby allowing the stuck material to fall. In this process, in addition to the stuck material, some uncrushed material will also fall together and mix into the crushed material. The prior art has proposed a good solution to this problem, such as a multi-cylinder hydraulic cone crusher with patent publication number CN118045654B; by setting two independent discharge ports and diversion ports, when the fixed cone is driven by the hydraulic protection device to move up, the flap will be driven to rotate through the linkage component, and the rotation of the flap can switch the connection state between the first discharge port and the second discharge port and the diversion port, thereby ensuring that the normally crushed material and the material actively discharged under the iron protection mechanism can be discharged in two ways, avoiding inadequate crushing effect and adding additional screening work.

[0004] Although the prior art solves the problem that unbroken materials will be mixed into the crushed materials when the over-iron protection mechanism is triggered, causing inadequate crushing and additional screening, the following problems still exist: in order to crush the materials finely and make the crushing size smaller, the distance between the fixed cone and the moving cone is usually reduced, and the rotation speed of the moving cone is accelerated to increase the extrusion pressure on the materials. However, since the distance between the fixed cone and the moving cone is smaller than that of the medium crusher, it will be more likely to get stuck, and the fixed cone will rotate slowly and abnormally when it is subjected to the reverse radial force and circumferential force provided by the material. The rotational motion can alleviate the damage to the fixed cone and the moving cone caused by the overload force caused by the excessive hardness of the material. However, at this time, the distance between the fixed cone and the moving cone will be further reduced, thereby further increasing the frequency of jamming, and when the fixed cone rotates abnormally, the extrusion pressure and shear force on the materials between the fixed cone and the moving cone will be uneven, and the over-iron protection mechanism will react to the normal materials, and frequent start and stop adjustments will occur, resulting in the simultaneous discharge of the crushed materials and the unbroken materials. At this time, it is still necessary to screen out the overhard materials to retain the qualified materials for crushing.

[0005] In view of the above situation, in order to overcome the above technical problems, the present invention designs a high-speed fine crushing hydraulic cone crusher. Summary of the invention

[0006] The present invention provides a high-speed fine-crushing hydraulic cone crusher, which solves the problem of abnormal rotation of the fixed cone before the iron-over-iron protection mechanism is triggered and the problem of both qualified and unqualified crushed materials being discharged when the iron-over-iron protection mechanism is triggered. By arranging a reset mechanism and a screening component, when the adjusting ring rotates abnormally, the reset mechanism generates a reset torque in the opposite direction of the abnormal rotation to the adjusting ring to help it reset. When the iron-over-iron protection mechanism is triggered, the screening component is lifted up with the fixed cone assembly and opens the entrance of the large material channel, so that the uncrushed materials roll into the large material channel along a defined route, while the crushed qualified materials are directly discharged from the screen holes of the arc net.

[0007] To achieve the above object, the present invention provides the following technical solutions: A high-speed fine crushing hydraulic cone crusher comprises a frame, a hydraulic system and a transmission system, and also comprises a fixed cone assembly, a movable cone assembly and a screening element; the fixed cone assembly comprises an adjusting seat, an adjusting ring, a rolling mortar wall and a reset mechanism; the adjusting seat is connected to the hydraulic system; the adjusting ring is threadedly connected to the adjusting seat; the rolling mortar wall is connected to the adjusting ring; the reset mechanism is connected between the frame and the adjusting ring, and when the adjusting ring rotates under the reaction force of the material, the reset mechanism generates a torsional moment opposite to the rotation direction on the adjusting ring; the movable cone assembly is connected to the transmission system; the screening element is connected to the reset mechanism, and when the over-iron protection is triggered, the adjusting seat and the adjusting ring move upward and drive the screening element to move upward, and the upward movement of the screening element pushes the adjusting seat to release the limit of the adjusting seat on the reset mechanism, and the upward movement of the screening element makes the material with a particle size greater than the qualified range of crushing at the position of the screening element roll into the inside of the screening element and be discharged from its internal channel, while the material with a particle size meeting the requirements will be directly discharged from the lower end of the crusher.

[0008] Preferably, the reset mechanism includes a fixed seat, a connecting piece and a reset spring; the fixed seat is connected to the frame; one end of the connecting piece is connected to the fixed seat, and the other end is connected to the adjusting ring; the reset spring is sleeved on the connecting piece, and the elastic modulus of the reset spring gradually decreases from both ends to the middle.

[0009] In the above scheme, when the adjusting ring and the mortar wall rotate abnormally under the action of the reverse radial force and circumferential force of the material, the reset mechanism can provide a reset torque to the adjusting ring so that the adjusting ring can be readjusted to its original position. At this time, the adjusting ring will drive the mortar wall to reset under the action of the reset spring, and the elastic modulus at both ends of the reset spring is large and the middle modulus is small, which can ensure that no matter whether the adjusting ring rotates clockwise or counterclockwise, the reset spring can be stretched and compressed. In the process of buffering the overload force, the reset spring will be difficult to deform. At this time, the rotation trend will gradually decrease, achieving a better buffering effect on the overload force, and in this process, if there is a material with a higher hardness, the buffering process can provide the hydraulic system with iron overload protection to lift the fixed cone assembly time, thereby reducing the damage to the mortar wall.

[0010] Preferably, the fixed seat includes a supporting seat, a sliding seat, a limiting pressure block and a limiting spring; the supporting seat is connected to the frame, and a limiting groove is provided on the supporting seat; the sliding seat is slidably installed on the supporting seat, and a clamping groove is provided on the sliding seat; the limiting pressure block is slidably installed in the limiting groove; the limiting spring is connected to the limiting pressure block.

[0011] In the above scheme, when the iron protection mechanism is triggered, the hydraulic system will lift the fixed cone assembly upward, which will cause the adjustment ring and the mortar wall to rise synchronously. In order to protect the reset spring from being pulled up and deformed, the sliding seat will be released from the limit during the lifting process and will be lifted up under the drive of the hydraulic system.

[0012] Preferably, the connecting member includes a telescopic arc seat and a telescopic arc rod; the telescopic arc seat is threadedly connected to the sliding seat; one end of the telescopic arc rod is a rubber ball and is slidably installed in the telescopic arc seat, and the other end is threadedly connected to the adjustment ring; and the angle formed by the telescopic arc rod, the telescopic arc seat and the return spring projected onto the vertical plane and the horizontal line is equal to the thread lead angle of the adjustment ring.

[0013] In the above scheme, the reset spring can be detachably connected between the frame and the adjusting ring through the connecting piece, which is convenient for replacement of the reset spring after plastic deformation after long-term use, and the angle formed by the telescopic arc rod, telescopic arc seat and reset spring projected onto the vertical plane and the horizontal line is equal to the thread lead angle of the adjusting ring, which can ensure that the deformation direction of the reset spring when subjected to tension or contraction is the same as the rotational upward or downward direction of the adjusting ring, thereby forming a protective effect on the reset spring, and the telescopic arc rod and telescopic arc seat can form a stable protection for the reset spring, and when the iron over-protection is triggered, the sliding seat is driven to rise through the connecting piece.

[0014] Preferably, the width of the clamping groove is greater than the height of the limiting pressing block, and when the sliding seat is limited, the upper end of the clamping groove is in contact with the horizontal surface of the upper end of the limiting pressing block.

[0015] Preferably, a transverse sliding groove is provided at the lower end of the limiting pressure block; the screening element includes a connecting rod and a screening net; the connecting rod is slidably installed in the transverse sliding groove and is connected to the adjustment seat; the screening net is connected to the adjustment ring.

[0016] In the above scheme, the screening net can be used to screen materials that do not meet the particle size requirements during normal operation, so that the materials that meet the requirements can be discharged normally, while the materials that do not meet the requirements will remain on the net surface, and when the iron protection is triggered, the qualified and unqualified materials can be distinguished, and when the iron protection is triggered, the screening net will move up and down, so that the qualified materials on the screening net can be shaken off.

[0017] Preferably, a movable groove is provided on the screening net; the bottom of the connecting rod is installed in the movable groove; the transverse sliding groove includes a vertical channel and a transverse inclined surface; the vertical channel is opened through the sliding seat, and the width of the vertical channel is equal to the width of the connecting rod; the transverse inclined surface is arranged at the lower left of the vertical channel.

[0018] In the above scheme, when the iron-passing protection is triggered, there is a gap between the bottom of the limiting pressure block and the bottom of the clamping groove of the sliding seat. At this time, the sliding seat can rise a certain distance. When the sliding seat rises, it will drive the screening net to rise. Because the connecting rod will squeeze the limiting pressure block under the action of the transverse inclined plane to release the limiting effect on the sliding seat, and the lifting height of the iron-passing protection will not be restricted after the connecting rod enters the vertical channel, and due to the existence of the movable groove, when the screening net rotates with the adjusting ring, the position of the connecting rod will not change, and its bottom can rotate in the screening net.

[0019] Preferably, the screening net also includes a sliding ring, an arc-shaped net, a large material channel and a baffle; the sliding ring is installed on the side wall of the frame; the circular array of the arc-shaped net is arranged on the inner wall of the sliding ring; the circular array of the large material channel is arranged below the arc-shaped net; the baffle is arranged at the entrance position of the large material channel and is horizontally movably connected to the bottom of the frame.

[0020] In the above scheme, the crushed small materials are screened through the arc net and the large material channel through the arc net and directly fall out of the crusher; when uncrushed materials appear, the adjustment ring is lifted under the iron protection, which will drive the structure except the baffle to lift. Since the baffle is in a stationary state, the large material channel will enter the open state at this time, and the large pieces of material rolling down through the arc net will fall into the large material channel, completing the screening of the uncrushed materials.

[0021] Preferably, the arc-shaped net and the large material channel are both spiral structures, and the spiral rise angle of the arc-shaped net is smaller than the spiral rise angle of the large material channel, and the lowermost end of the entrance position of the large material channel is lower than the lowest position of the arc-shaped net.

[0022] In the above scheme, since the arc net and the large material channel are spiral structures, the materials falling on their upper surfaces will roll down, the qualified materials will pass through the arc net directly, and the materials passing through the arc net and falling to the upper surface of the outer side of the large material channel will also roll down. At the same time, after the baffle is removed, the barrier of the unqualified materials will disappear and they will roll from the arc net into the large material channel.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. Compared with the existing hydraulic cone crusher, the present invention adds a reset mechanism to the fixed cone assembly. When the adjusting ring drives the mortar wall to rotate abnormally due to the presence of hard materials, the mortar wall will first perform buffering rotation to prevent the mortar wall and the movable cone assembly from being damaged due to the hard materials. Then the reset spring will generate a reset torque on the adjusting ring, so that a greater shear force on the material is formed between the mortar wall and the movable cone assembly, thereby helping the material to be finely crushed. After the fine crushing, the reset spring will restore the adjusting ring to its original position to avoid the change of the position of the adjusting ring resulting in a decrease in the material crushing effect. On the one hand, it forms protection for the fixed cone assembly and the movable cone assembly under high-speed crushing state, and on the other hand, it improves the material crushing effect.

[0024] 2. The present invention arranges an arc net and a large material channel so that qualified materials can be discharged from the crusher normally through the arc net. When the iron-passing protection mechanism is triggered for materials that have not been completely crushed, the entrance position of the large material channel will automatically open. At this time, the materials that have not been completely crushed will be screened into the large material channel, and due to the existence of the arc net above the large material channel, qualified materials can be screened out. At this time, the materials entering the large material channel are all unfinished materials, and the unfinished materials will be discharged from the large material channel, thereby completing the screening of the crushed materials and the unfinished materials when the iron-passing protection mechanism is triggered.

[0025] 3. The present invention connects the screening net with the adjusting ring so that when the adjusting ring rotates abnormally due to the presence of hard materials, the screening net will rotate along with the adjusting ring, so that the material on the surface of the screening net can roll down smoothly. When the resetting mechanism drives the adjusting ring to reset, the screening net forms an alternating clockwise and counterclockwise motion, and shakes off the accumulated material in a manner similar to shaking. When the over-iron protection occurs, the screening net will move upward with the adjusting ring. At this time, the unbroken crushed material will roll down smoothly into the large material channel, and the qualified crushed material will be quickly screened and discharged by the arc net, ensuring the material differentiation effect when the over-iron protection mechanism is triggered. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is the overall structure diagram of the present invention; Figure 2 It is a cross-sectional view of the internal structure of the present invention; Figure 3 A half-section view of the present invention; Figure 4 It is a top view cutaway schematic diagram of the present invention; Figure 5 It is a schematic diagram of the connection structure of the connector and the return spring of the present invention; Figure 6 for Figure 3 A magnified view of the structure at center; Figure 7 It is a schematic diagram of the movement direction of the limit pressing block and the connecting rod during extrusion of the present invention; Figure 8 It is a schematic diagram of the structure of the screening net of the present invention; In the figure: 1. frame; 2. hydraulic system; 3. transmission system; 4. fixed cone assembly; 41. adjustment seat; 42. adjustment ring; 43. mortar wall; 44. reset mechanism; 441. fixed seat; 4411. support seat; 44111. limit groove; 4412. sliding seat; 44121. clamping groove; 4413. limit pressure block; 4414. limit spring; 4415. transverse sliding groove; 44151. vertical channel; 44152. transverse inclined plane; 442. connecting piece; 4421. telescopic arc seat; 4422. telescopic arc rod; 443. reset spring; 5. moving cone assembly; 6. screening piece; 61. connecting rod; 62. screening net; 621. moving groove; 622. sliding ring; 623. arc net; 624. large material channel; 625. baffle. DETAILED DESCRIPTION

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] See also Figures 1 to 8 The present invention provides a high-speed fine crushing hydraulic cone crusher, and the technical solution is as follows: As a specific embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 3A high-speed fine crushing hydraulic cone crusher, comprising a frame 1, a hydraulic system 2 and a transmission system 3, and also comprising a fixed cone assembly 4, a movable cone assembly 5 and a screening element 6; the fixed cone assembly 4 comprises an adjustment seat 41, an adjustment ring 42, a rolling mortar wall 43 and a reset mechanism 44; the adjustment seat 41 is connected to the hydraulic system 2; the adjustment ring 42 is threadedly connected to the adjustment seat 41; the rolling mortar wall 43 is connected to the adjustment ring 42; the reset mechanism 44 is connected between the frame 1 and the adjustment ring 42, and the adjustment ring 42 is connected to the material when the material is reversed. When rotation occurs under force, the reset mechanism 44 generates a torsional torque on the adjusting ring 42 in the opposite direction of rotation; the movable cone assembly 5 is connected to the transmission system 3; the screening element 6 is connected to the reset mechanism 44, and when the iron overload protection is triggered, the adjustment seat 41 and the adjustment ring 42 move upward and drive the screening element 6 to move upward, and the upward movement of the screening element 6 pushes the adjustment seat 41 to release the limit of the adjustment seat 41 on the reset mechanism 44, and the upward movement of the screening element 6 causes the material with a particle size greater than the limit value that reaches the position of the screening element 6 to roll into the inside of the screening element 6.

[0030] As a specific embodiment of the present invention, refer to Figure 2 , Figure 3 and Figure 4 The reset mechanism 44 includes a fixed seat 441, a connecting piece 442 and a reset spring 443; the fixed seat 441 is connected to the frame 1; one end of the connecting piece 442 is connected to the fixed seat 441, and the other end is connected to the adjusting ring 42; the reset spring 443 is sleeved on the connecting piece 442, and the elastic modulus of the reset spring 443 gradually decreases from both ends to the middle. When the adjusting ring 42 and the mortar wall 43 rotate abnormally under the action of the reverse radial force and circumferential force of the material, the reset mechanism 44 can provide a reset torque to the adjusting ring 42 so that the adjusting ring 42 can be readjusted to its original position. At this time, the adjusting ring 42 will drive the mortar wall 43 to reset under the action of the reset spring 443, and the elastic modulus at both ends of the reset spring 443 is large and the middle modulus is small, which can ensure that no matter whether the adjusting ring 42 rotates clockwise or counterclockwise, the reset spring 443 can be stretched and compressed. In the process of buffering the overload force, the reset spring 443 will be difficult to deform. At this time, the rotation trend will gradually decrease, achieving a better buffering effect on the overload force. In this process, if there is a material with a relatively high hardness, the buffering process can provide the hydraulic system 2 with iron overload protection to lift the fixed cone assembly 4 for a period of time, thereby reducing the damage to the mortar wall 43.

[0031] As a specific embodiment of the present invention, refer to Figure 4 , Figure 6 and Figure 7The fixed seat 441 includes a support seat 4411, a sliding seat 4412, a limiting pressure block 4413 and a limiting spring 4414; the support seat 4411 is connected to the frame 1, and a limiting groove 44111 is provided on the support seat 4411; the sliding seat 4412 is slidably installed on the support seat 4411, and a clamping groove 44121 is provided on the sliding seat 4412; the limiting pressure block 4413 is slidably installed in the limiting groove 44111; the limiting spring 4414 is connected to the limiting pressure block 4413. When the over-iron protection mechanism is triggered, the hydraulic system 2 will lift the fixed cone assembly 4 upward, which will cause the adjustment ring 42 and the mortar wall 43 to rise synchronously. In order to protect the reset spring 443 from being deformed by the upward pull, the sliding seat 4412 will be released from the limit during the lifting process and will be lifted under the drive of the hydraulic system 2.

[0032] As a specific embodiment of the present invention, refer to Figure 4 and Figure 5 ; The connecting piece 442 includes a telescopic arc seat 4421 and a telescopic arc rod 4422; the telescopic arc seat 4421 is threadedly connected to the sliding seat 4412; one end of the telescopic arc rod 4422 is a rubber ball and is slidably installed in the telescopic arc seat 4421, and the other end is threadedly connected to the adjustment ring 42; and the angle formed by the telescopic arc rod 4422, the telescopic arc seat 4421 and the reset spring 443 projected onto the vertical plane and the horizontal line is equal to the thread lead angle of the adjustment ring 42; the reset spring 443 can be detachably connected between the frame 1 and the adjustment ring 42 through the connecting piece 442, which is convenient for reset after long-term use The spring 443 is replaced after plastic deformation occurs, and the angle formed by the telescopic arc rod 4422, the telescopic arc seat 4421 and the reset spring 443 projected onto the vertical plane and the horizontal line is equal to the thread lead angle of the adjusting ring 42, which can ensure that the deformation direction of the reset spring 443 when subjected to tension or contraction is the same as the rotational upward or downward direction of the adjusting ring 42, thereby protecting the reset spring 443, and the telescopic arc rod 4422 and the telescopic arc seat 4421 can provide stable protection for the reset spring 443, and when the over-iron protection is triggered, the sliding seat 4412 is driven to rise through the connecting piece 442.

[0033] As a specific embodiment of the present invention, refer to Figure 3 , Figure 6 and Figure 7; A transverse sliding groove 4415 is provided at the lower end of the limit pressing block 4413; the screening element 6 includes a connecting rod 61 and a screening net 62; the connecting rod 61 is slidably installed in the transverse sliding groove 4415 and is connected to the adjustment seat 41; the screening net 62 is connected to the adjustment ring 42. The screening net 62 can screen the materials that do not meet the particle size requirements during normal operation, so that the materials that meet the requirements can be discharged normally, while the materials that do not meet the requirements will stay on the net surface, and when the iron protection is triggered, the qualified materials and the unqualified materials can be distinguished, and when the iron protection is triggered, the screening net 62 will move up and down so that the qualified materials on the screening net 62 can be shaken off.

[0034] As a specific embodiment of the present invention, refer to Figure 4 , Figure 6 , Figure 7 and Figure 8 The width of the engaging groove 44121 is greater than the height of the limiting pressure block 4413, and the upper end of the engaging groove 44121 is in contact with the horizontal surface of the upper end of the limiting pressure block 4413 when the sliding seat 4412 is in a limiting position. The screening net 62 is provided with a moving groove 621; the bottom of the connecting rod 61 is installed in the moving groove 621; the transverse sliding groove 4415 includes a vertical channel 44151 and a transverse inclined surface 44152; the vertical channel 44151 is provided in the sliding seat 4412, and the width of the vertical channel 44151 is equal to the width of the connecting rod 61; the transverse inclined surface 44152 is provided at the lower left of the vertical channel 44151. When the iron-passing protection is triggered, there is a gap between the bottom of the limiting pressure block 4413 and the bottom of the clamping groove 44121 of the sliding seat 4412. At this time, the sliding seat 4412 can rise a certain distance. When the sliding seat 4412 rises, it will drive the screening net 62 to rise. Because the connecting rod 61 will squeeze the limiting pressure block 4413 under the action of the transverse inclined surface 44152 to release the limiting effect on the sliding seat 4412, and after the connecting rod 61 enters the vertical channel 44151, the lifting height of the iron-passing protection will not be restricted. Due to the existence of the movable groove 621, when the screening net 62 rotates with the adjusting ring 42, the position of the connecting rod 61 will not change, and its bottom can rotate in the screening net 62.

[0035] As a specific embodiment of the present invention, refer to Figure 2 , Figure 4 and Figure 8; The screening net 62 also includes a sliding ring 622, an arc net 623, a large material channel 624 and a baffle 625; the sliding ring 622 is installed on the side wall of the frame 1; the arc net 623 is arranged in a circular array on the inner wall of the sliding ring 622; the large material channel 624 is arranged in a circular array below the arc net 623; the baffle 625 is arranged at the entrance position of the large material channel 624 and is horizontally movably connected to the bottom of the frame 1. At this time, regardless of whether the screening net 62 will rotate with the adjustment ring 42, the baffle 625 can rotate with the screening net 62, and when the screening net 62 moves upward, the baffle 625 will not be able to move upward due to the limitation of displacement in the vertical direction, and the large material channel 624 can enter the open state when the iron protection mechanism is triggered. The small crushed materials are screened through the curved net 623 and the large material channel 624 and directly fall out of the crusher; when uncrushed materials appear, the adjustment ring 42 is lifted under the protection of iron, which will drive the structure other than the baffle 625 to lift, and the baffle 625 remains stationary. The large material channel 624 enters the open state at this time, and the large pieces of materials rolling down through the curved net 623 will fall into the large material channel 624, completing the screening of the uncrushed materials. The curved net 623 and the large material channel 624 are both spiral structures, and the angle of the spiral rise angle of the curved net 623 is smaller than the angle of the spiral rise angle of the large material channel 624, and the lowest end of the entrance position of the large material channel 624 is lower than the lowest position of the curved net 623. Since the arc net 623 and the large material channel 624 are spiral structures, the materials falling on their upper surfaces will roll down, and the qualified materials will directly pass through the arc net 623, and the materials that pass through the arc net 623 and fall to the outer upper surface of the large material channel 624 will also roll down. At the same time, after the baffle 625 is removed, the barrier of the unqualified materials will disappear and they will roll from the arc net 623 into the large material channel 624.

[0036] Working process: when harder materials enter between the mortar wall 43 and the movable cone assembly 5, the reaction force of the materials causes the mortar wall 43 and the adjustment ring 42 to rotate abnormally, and the reset mechanism 44 generates a reset torque on the adjustment ring 42 in the opposite direction of rotation to help the adjustment ring 42 reset. When the material is too hard to be crushed and the adjustment ring 42 cannot be reset normally, the over-iron protection mechanism is triggered, and the hydraulic system 2 drives the fixed cone assembly 4 to lift, and the fixed cone assembly 4 drives the screening net 62 to lift together to open the large material channel 624, so that the qualified crushed materials pass through the arc net 623 and are discharged directly, while the uncrushed materials will enter the large material channel 624 and be discharged from the large material channel 624.

[0037] Specifically, the start-up transmission system 3 drives the movable cone assembly 5 to rotate eccentrically. When the material enters between the mortar wall 43 and the movable cone assembly 5, it will be crushed under the extrusion of the mortar wall 43 and the movable cone assembly 5; when the material with relatively high hardness appears, the mortar wall 43 will drive the adjustment ring 42 to rotate abnormally slowly when it is subjected to the reverse radial force and circumferential force provided by the material. In order to prevent the mortar wall 43 from loosening and causing the material crushing effect to decrease, the reset spring 443 will be stretched or compressed when abnormal rotation occurs. At this time, the force exerted by the material on the mortar wall 43 will be buffered. When the assembly 5 continues to rotate and is able to crush the material, the return spring 443 will generate a return torque in the opposite direction of the abnormal rotation on the adjustment ring 42 under the action of its own elastic force, helping the adjustment ring 42 to reset, thereby preventing the adjustment ring 42 from loosening or the upper and lower positions of the adjustment ring 42 from changing, resulting in changes in the crushing effect. During the rotation of the adjustment ring 42, the screening net 62 will be driven to rotate. At this time, if there is accumulated material on the screening net 62, it will be shaken off and discharged under the action of the spiral rotation; and when the hardness of the material is too large to be crushed, the iron protection mechanism will be triggered, and the hydraulic system 2 The adjusting seat 41 will be driven to move upward, and the adjusting seat 41 will drive the adjusting ring 42 to move upward. When the adjusting ring 42 rises, it will drive the screening net 62 to move upward. Since there is a distance between the bottom surface of the clamping groove 44121 and the bottom surface of the limiting pressure block 4413, the sliding seat 4412 will move upward. Since the connecting rod 61 rises with the screening net 62, the upper end of the connecting rod 61 presses the transverse inclined surface 44152 to make the limiting pressure block 4413 move laterally and compress the limiting spring 4414. When the connecting rod 61 enters the vertical channel 44151, the limiting pressure block 4413 is completely released. In addition to the limiting effect on the sliding seat 4412, the sliding seat 4412 and the return spring 443 move upward together with the adjusting ring 42. Since the large material channel 624 moves upward, the baffle 625 cannot move in the vertical direction. At this time, the entrance position of the large material channel 624 will be opened, and the crushed materials will be directly discharged through the arc net 623, while the uncrushed materials will pass through the upper surface of the arc net 623 and roll into the large material channel 624 faster under the action of its upward movement, and be discharged from the large material channel 624, thereby better distinguishing the crushed materials from the uncrushed materials.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A high-speed fine crushing hydraulic cone crusher, comprising a frame (1), a hydraulic system (2) and a transmission system (3), characterized in that: The invention also comprises a fixed cone assembly (4), a movable cone assembly (5) and a screening element (6); the fixed cone assembly (4) comprises an adjusting seat (41), an adjusting ring (42), a rolling mortar wall (43) and a reset mechanism (44); the adjusting seat (41) is connected to the hydraulic system (2); the adjusting ring (42) is threadedly connected to the adjusting seat (41); the rolling mortar wall (43) is connected to the adjusting ring (42); the reset mechanism (44) is connected between the frame (1) and the adjusting ring (42); and the adjusting ring (42) resets the frame when it rotates under the reaction force of the material. The structure (44) generates a torsional moment on the adjustment ring (42) in the opposite direction of rotation; the movable cone assembly (5) is connected to the transmission system (3); the screening element (6) is connected to the reset mechanism (44); when the iron protection is triggered, the adjustment seat (41) and the adjustment ring (42) drive the screening element (6) to move upward; the screening element (6) moves upward to push the adjustment seat (41) to release the limit of the reset mechanism (44) by the adjustment seat (41); and when the screening element (6) moves upward, materials with a particle size greater than a limit value that reaches the position of the screening element (6) roll into the inside of the screening element (6).

2. A high-speed fine crushing hydraulic cone crusher according to claim 1, characterized in that: The reset mechanism (44) comprises a fixing seat (441), a connecting piece (442) and a reset spring (443); the fixing seat (441) is connected to the frame (1); one end of the connecting piece (442) is connected to the fixing seat (441), and the other end is connected to the adjustment ring (42); the reset spring (443) is sleeved on the connecting piece (442), and the elastic modulus of the reset spring (443) gradually decreases from both ends to the middle.

3. A high-speed fine crushing hydraulic cone crusher according to claim 2, characterized in that: The fixed seat (441) comprises a supporting seat (4411), a sliding seat (4412), a limiting pressure block (4413) and a limiting spring (4414); the supporting seat (4411) is connected to the frame (1), and a limiting groove (44111) is provided on the supporting seat (4411); the sliding seat (4412) is slidably mounted on the supporting seat (4411), and a clamping groove (44121) is provided on the sliding seat (4412); the limiting pressure block (4413) is slidably mounted in the limiting groove (44111); and the limiting spring (4414) is connected to the limiting pressure block (4413).

4. A high-speed fine crushing hydraulic cone crusher according to claim 3, characterized in that: The connecting member (442) comprises a telescopic arc seat (4421) and a telescopic arc rod (4422); the telescopic arc seat (4421) is threadedly connected to the sliding seat (4412); one end of the telescopic arc rod (4422) is a rubber ball and is slidably mounted in the telescopic arc seat (4421), and the other end is threadedly connected to the adjustment ring (42); and the angle formed by the telescopic arc rod (4422), the telescopic arc seat (4421) and the return spring (443) projected onto a vertical plane and a horizontal line is equal to the thread lead angle of the adjustment ring (42).

5. The high-speed fine crushing hydraulic cone crusher according to claim 3 is characterized in that: The width of the clamping groove (44121) is greater than the height of the limiting pressure block (4413), and when the sliding seat (4412) is limited, the upper end of the clamping groove (44121) is in contact with the horizontal surface of the upper end of the limiting pressure block (4413).

6. The high-speed fine crushing hydraulic cone crusher according to claim 5, characterized in that: A transverse sliding groove (4415) is provided at the lower end of the limiting pressure block (4413); the screening element (6) comprises a connecting rod (61) and a screening net (62); the connecting rod (61) is slidably mounted in the transverse sliding groove (4415) and is connected to the adjustment seat (41); the screening net (62) is connected to the adjustment ring (42).

7. The high-speed fine crushing hydraulic cone crusher according to claim 6, characterized in that: The screening net (62) is provided with a movable groove (621); the bottom of the connecting rod (61) is installed in the movable groove (621); the transverse sliding groove (4415) comprises a vertical channel (44151) and a transverse inclined surface (44152); the vertical channel (44151) is provided through the sliding seat (4412), and the width of the vertical channel (44151) is equal to the width of the connecting rod (61); and the transverse inclined surface (44152) is arranged at the lower left of the vertical channel (44151).

8. The high-speed fine crushing hydraulic cone crusher according to claim 7, characterized in that: The screening net (62) further comprises a sliding ring (622), an arc-shaped net (623), a large material channel (624) and a baffle (625); the sliding ring (622) is mounted on the side wall of the frame (1); the arc-shaped net (623) is arranged in a circular array on the inner wall of the sliding ring (622); the large material channel (624) is arranged in a circular array below the arc-shaped net (623); the baffle (625) is arranged at the entrance position of the large material channel (624), and the baffle (625) is horizontally movably connected to the bottom of the frame (1).

9. The high-speed fine crushing hydraulic cone crusher according to claim 8, characterized in that: The arc-shaped net (623) and the large material channel (624) are both spiral structures, and the spiral rise angle of the arc-shaped net (623) is smaller than the spiral rise angle of the large material channel (624), and the lowest end of the entrance position of the large material channel (624) is lower than the lowest position of the arc-shaped net (623).

Images