Fixed cone locking device of cone crusher

Abstract

The utility model discloses a fixed cone locking device of a cone crusher, which relates to the technical field of cone crushers and comprises a lower frame body, a movable cone mechanism, a movable cone lining plate, an upper frame body, an adjusting sleeve, a supporting sleeve, a feeding port and a fixed cone lining plate, the movable cone mechanism is arranged on the lower frame body, and the movable cone lining plate is arranged at the top of the movable cone mechanism. The supporting sleeve is arranged on the lower frame body through an elastic clamping piece, an inner ring of the supporting sleeve is provided with an internal thread, an outer ring of the adjusting sleeve is provided with an external thread, the adjusting sleeve is screwed into the supporting sleeve, the bottom of the adjusting sleeve is connected with a mounting plate, and the fixed cone lining plate is fixedly connected with the mounting plate. A discharge port is formed between the fixed cone lining plate and the movable cone lining plate; the adjusting sleeve is jointly clamped and fixed through radial adjustment of the arc-shaped blocks on the adjusting sleeve, damage to threads of the adjusting sleeve is avoided, meanwhile, the fixing stability of the adjusting sleeve is guaranteed, the adjusting precision of the discharging opening is guaranteed, and the machining quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cone crushers, in particular to a fixed cone locking device for a cone crusher. Background Art

[0002] In the prior art of adjusting the spacing of the discharge ports of a cone crusher through a fixed cone, generally, the adjustment sleeve and the fixed cone are adjusted in the vertical direction by means of a spiral adjustment method to change the spacing of the discharge ports. After the adjustment of the discharge ports is completed, a locking structure driven by a hydraulic cylinder is used to increase the axial squeezing force between the adjustment sleeve and the fixed cone to increase the friction force for fixing, thereby avoiding the problem of loosening of the adjustment sleeve and the fixed cone connected to the adjustment sleeve due to vibration as much as possible.

[0003] The existing locking structure generally adopts a locking sleeve, which has a thread that matches the external thread of the adjustment sleeve. The locking sleeve is driven up and down by the hydraulic cylinder to increase the friction between the threads. The greater the driving force of the hydraulic cylinder, the greater the friction between the locking sleeve and the adjustment sleeve, and the more stable the adjustment sleeve is, but the damage to the thread is greater, reducing the service life of the thread; when the driving force of the hydraulic cylinder is smaller or insufficient, the friction between the locking sleeve and the adjustment sleeve is smaller, and even the self-weight of the adjustment sleeve and the fixed cone may form an extrusion force. The friction is insufficient, and the vibration and material extrusion during work may cause the fixed cone and the adjustment sleeve to move, thereby changing the spacing of the discharge port, the stability is poor, and the change of direction reflects that the adjustment accuracy of the discharge port in this way is low, affecting the processing quality. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a cone locking device for a cone crusher, which clamps and fixes the adjusting sleeve through radial adjustment of multiple arc blocks on the adjusting sleeve, thereby avoiding damage to the adjusting sleeve thread while ensuring the stability of its fixation, ensuring the adjustment accuracy of the discharge port and improving the processing quality.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a cone locking device for a cone crusher, comprising a lower frame, a movable cone mechanism, a movable cone liner, an upper frame, an adjustment sleeve, a support sleeve, a feeding port and a fixed cone liner, wherein the movable cone mechanism is arranged on the lower frame, and the movable cone liner is arranged on the top of the movable cone mechanism, the support sleeve is arranged on the lower frame through an elastic clamping piece, the inner ring of the support sleeve is provided with an internal thread, the outer ring of the adjustment sleeve is provided with an external thread, the adjustment sleeve is screwed into the interior of the support sleeve, the bottom of the adjustment sleeve is connected with a mounting plate, and the fixed cone liner is fixedly connected to the mounting plate A discharge port is formed between the fixed cone liner and the movable cone liner, a feeding port is arranged on the top of the adjustment sleeve and the fixed cone liner, the upper frame is fixedly connected to the top of the adjustment sleeve and wrapped around the outer side of the upper part of the adjustment sleeve, a gear disk is fixedly arranged on the outer side wall of the upper frame, a first motor is arranged on the outside of the support sleeve, a long gear is arranged at the output end of the first motor, and the long gear is meshed with the gear disk; a locking sleeve structure is arranged between the inner side wall of the upper frame and the adjustment sleeve, and the locking sleeve structure can radially lock multiple positions of the adjustment sleeve; an over-iron protection mechanism is arranged between the support sleeve and the lower frame.

[0006] Preferably, the locking sleeve structure includes a second motor, an internal gear, a gear ring, a sleeve body, a plurality of arc blocks and an extrusion ring, the second motor is vertically slidably connected to the inner side wall of the upper frame body through a vertical sliding limit piece, the internal gear is fixedly connected to the output end of the second motor, the gear ring is fixedly connected to the sleeve body, the outer ring of the sleeve body is connected to the inner side wall of the upper frame body through a circumferential sliding limit piece, the circumferential sliding limit piece satisfies the circumferential rotation of the sleeve body and can move axially at the same time, a plurality of arc blocks are distributed in an annular array and are radially slidably connected to the sleeve body through a radial sliding limit piece, an internal thread is provided on the side of the arc block facing the external thread of the adjustment sleeve, and the extrusion ring is screwed to the adjustment sleeve through the internal thread, the extrusion ring is arranged on the upper end surface of the support sleeve, the upper surface of the extrusion ring is an inclined surface inclined inwardly, and the bottom of the arc block is designed to be a contoured surface matching the inclined surface of the extrusion ring.

[0007] Preferably, the vertical sliding limiter comprises a dovetail block, a dovetail groove is vertically opened on the inner wall of the upper frame, the second motor is mounted on the dovetail block, and the dovetail block is slidably connected to the dovetail groove.

[0008] Preferably, the circumferential sliding limiter comprises a slide rail, a slide groove is vertically opened on the inner side wall of the upper frame, the slide rail is fixedly connected to the side wall of the sleeve, the slide rail is slidably connected to the slide groove, and the slide groove satisfies the slide rail's internal rotation, sliding and vertical movement.

[0009] Preferably, the radial sliding limiter comprises a clamping block, a limit groove is radially provided at the bottom of the sleeve body, the clamping block is arranged at the top of the arc block and corresponds to the position of the limit groove, and the clamping block is slidably connected to the limit groove.

[0010] Preferably, a reset elastic member is provided between the clamping block and the side wall of the limiting groove.

[0011] Preferably, the resetting elastic member is a spring.

[0012] Preferably, the iron-passing protection mechanism includes an iron-passing hydraulic cylinder and an iron-passing detection sensor. The iron-passing hydraulic cylinder is fixedly arranged on the lower frame, the telescopic end of the iron-passing hydraulic cylinder is fixedly connected to the support sleeve, and the iron-passing detection sensor is arranged between the adjustment sleeve and the mounting plate.

[0013] Preferably, a fixed cone hydraulic cylinder is provided at the bottom of the support sleeve, the telescopic end of the fixed cone hydraulic cylinder is fixedly connected to the surface of the mounting plate, and the iron passing detection sensor is arranged at the connection between the telescopic end of the fixed cone hydraulic cylinder and the mounting plate.

[0014] The utility model provides a cone locking device for a cone crusher, which has the following beneficial effects:

[0015] 1. The utility model clamps and fixes the adjusting sleeve by radially adjusting multiple arc blocks on the adjusting sleeve, thereby avoiding damage to the adjusting sleeve thread and ensuring the stability of its fixation, ensuring the adjustment accuracy of the discharge port and improving the processing quality;

[0016] 2. In the utility model, the mounting plate and the bottom of the adjusting sleeve are connected through a fixed cone hydraulic cylinder. The fixed cone hydraulic cylinder can drive the mounting plate to move vertically, thereby driving the fixed cone liner to move vertically, thereby changing the size of the discharge port, and an over-iron detection sensor is arranged between the mounting plate and the bottom of the adjusting sleeve. Once the external controller receives the overload information, it immediately controls the telescopic end of the fixed cone hydraulic cylinder to drive the mounting plate and the fixed cone liner to move upward, expand the discharge port, avoid overload damage to the equipment, and jointly protect the equipment from over-iron together with the external over-iron hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall cross-sectional schematic diagram of a cone locking device for a cone crusher according to the utility model;

[0018] Figure 2 It is a schematic diagram of the connection relationship of the fixed cone in the fixed cone locking device of a cone crusher according to the utility model;

[0019] Figure 3 It is a schematic diagram of the locking sleeve structure in a fixed cone locking device of a cone crusher according to the utility model;

[0020] Figure 4 This is a front cross-sectional view of a cone locking device for a cone crusher according to the utility model;

[0021] Figure 5 This is the overall front view of a cone locking device for a cone crusher according to the utility model;

[0022] Figure 6 It is a schematic diagram of the long gear and the toothed disc in the utility model;

[0023] Figure 7 It is a schematic diagram of the internal gear and the gear ring in the utility model;

[0024] Figure 8 It is a schematic diagram of the circumferential sliding limiter of the utility model;

[0025] Fig. 9 It is a schematic diagram of the radial sliding limiter of the utility model.

[0026] In the figure: 1. lower frame; 2. moving cone mechanism; 3. moving cone lining; 4. fixed cone lining; 5. support sleeve; 6. locking sleeve structure; 7. adjustment sleeve; 8. upper frame; 9. feeding port; 10. toothed disc; 11. first motor; 12. fixed cone hydraulic cylinder; 13. mounting plate; 14. elastic clamping piece; 15. iron passing hydraulic cylinder; 16. dovetail groove; 17. dovetail block; 18. second motor; 19. internal gear; 20. iron passing detection sensor; 21. long gear; 22. discharge port; 60. reset elastic piece; 61. extrusion ring; 62. sleeve; 63. arc block; 64. gear ring; 65. contour surface; 66. limit groove; 67. clamping block; 68. slide rail; 69. slide groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-9As shown, a cone locking device for a cone crusher comprises a lower frame 1, a movable cone mechanism 2, a movable cone liner 3, an upper frame 8, an adjustment sleeve 7, a support sleeve 5, a feeding port 9 and a fixed cone liner 4. The movable cone mechanism 2 is arranged on the lower frame 1, and the movable cone liner 3 is arranged on the top of the movable cone mechanism 2. The support sleeve 5 is arranged on the lower frame 1 through an elastic clamping member 14. The inner ring of the support sleeve 5 is provided with an internal thread, and the outer ring of the adjustment sleeve 7 is provided with an external thread. The adjustment sleeve 7 is screwed into the inside of the support sleeve 5. The bottom of the adjustment sleeve 7 is connected to a mounting plate 13, and the fixed cone liner 4 is fixedly connected to the mounting plate 13. A discharge port 22 is formed between the fixed cone liner 4 and the movable cone liner 3. The feeding port 9 is provided on the top of the adjustment sleeve 7 and the fixed cone liner 4. The upper frame 8 is fixedly connected to the top of the adjustment sleeve 7 and wrapped around the outer side of the upper part of the adjustment sleeve 7. A toothed disc 10 is fixedly arranged on the outer side wall of the upper frame 8. A first motor 11 is arranged on the outside of the support sleeve 5. A long gear 21 is arranged at the output end of the first motor 11, and the long gear 21 is meshed with the toothed disc 10; a locking sleeve structure 6 is arranged between the inner side wall of the upper frame 8 and the adjustment sleeve 7, and the locking sleeve structure 6 can radially lock multiple positions of the adjustment sleeve 7; an over-iron protection mechanism is arranged between the support sleeve 5 and the lower frame 1; the locking sleeve structure 6 includes a second motor 18, an internal gear 19, a gear ring 64, a sleeve body 62, a plurality of arc blocks 63 and an extrusion ring 61, and the second motor 18 is connected to the inner side of the upper frame 8 through a vertical sliding limiter The inner gear 19 is fixedly connected to the output end of the second motor 18, the gear ring 64 is fixedly connected to the sleeve 62, the outer ring of the sleeve 62 is connected to the inner wall of the upper frame 8 through a circumferential sliding limiter, and the circumferential sliding limiter satisfies the circumferential rotation of the sleeve 62 while being able to move axially. A plurality of arc blocks 63 are distributed in an annular array and are radially slidably connected to the sleeve 62 through radial sliding limiters. An internal thread is provided on the side of the arc block 63 facing the external thread of the adjustment sleeve 7, and is screwed to the adjustment sleeve 7 through the internal thread. The extrusion ring 61 is arranged on the upper end surface of the support sleeve 5, and the upper surface of the extrusion ring 61 is an inclined surface inclined inwardly, and the bottom of the arc block 63 is designed to be a contoured surface 65 matching the inclined surface of the extrusion ring 61; The vertical sliding limiter includes a dovetail block 17, a dovetail groove 16 is vertically provided on the inner side wall of the upper frame 8, the second motor 18 is installed on the dovetail block 17, and the dovetail block 17 is slidably connected to the dovetail groove 16; the circumferential sliding limiter includes a slide rail 68, a slide groove 69 is vertically provided on the inner side wall of the upper frame 8, the slide rail 68 is fixedly connected to the side wall of the sleeve 62, the slide rail 68 is slidably connected to the slide groove 69, and the slide groove 69 satisfies the slide rail 68 to rotate and slide inside it and move in the vertical direction; the radial sliding limiter includes a clamping block 67, a limiting groove 66 is radially provided at the bottom of the sleeve 62, the clamping block 67 is arranged at the top of the arc block 63 and corresponds to the position of the limiting groove 66, and the clamping block 67 is slidably connected to the limiting groove 66;A reset elastic member 60 is arranged between the block 67 and the side wall of the limit groove 66; the reset elastic member 60 is a spring; the iron-passing protection mechanism includes an iron-passing hydraulic cylinder 15 and an iron-passing detection sensor 20, the iron-passing hydraulic cylinder 15 is fixedly arranged on the lower frame 1, the telescopic end of the iron-passing hydraulic cylinder 15 is fixedly connected to the support sleeve 5, and the iron-passing detection sensor 20 is arranged between the adjustment sleeve 7 and the mounting plate 13; a fixed cone hydraulic cylinder 12 is arranged at the bottom of the support sleeve 5, the telescopic end of the fixed cone hydraulic cylinder 12 is fixedly connected to the surface of the mounting plate 13, and the iron-passing detection sensor 20 is arranged at the connection between the telescopic end of the fixed cone hydraulic cylinder 12 and the mounting plate 13. ;

[0029] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0030] According to the instruction manual Figure 1-9 It can be known that when the utility model is working, the personnel adjust the size of the discharge port 22 between the fixed cone liner 4 and the movable cone liner 3 according to the requirements of the crushed particles. When adjusting, the first motor 11 on the support sleeve 5 is started, and the long gear 21 at the output end of the first motor 11 rotates to drive the gear disc 10 engaged with it to rotate. Since the adjustment sleeve 7 is screwed on the internal thread of the support sleeve 5 through the external thread, and the support sleeve 5 is arranged on the lower frame 1 through the elastic clamping member 14, the rotation of the gear disc 10 can drive the adjustment sleeve 7 connected to it to rotate relative to the support sleeve 5, thereby adjusting the bottom of the adjustment sleeve 7 through the fixed cone liner 4 of the mounting plate 13 to achieve the purpose of adjusting the size of the discharge port 22. The adjustment accuracy is high and it is convenient and fast. In this process, it should be noted that since the upper frame 8, the adjustment sleeve 7 and the gear disc 10 will be displaced in the vertical direction or axial direction while rotating, the design of the long gear 21 should ensure that the gear disc 10 and the long gear 21 can be engaged within the working range. In addition, the design of the elastic clamp 14 can adopt the existing technology, and it can be clamped between the support sleeve 5 and the lower frame 1 within a certain external force range. When the iron protection is performed, the support sleeve 5 can be lifted by a force beyond the range to disengage the elastic clamp 14. After the adjustment of the discharge port 22 is completed, the multiple positions of the adjustment sleeve 7 are radially locked by the locking sleeve structure 6. Compared with the locking method of the existing technology, the radial locking method can avoid damage to the thread of the adjustment sleeve 7, and at the same time ensure the stability of its fixation. The adjustment sleeve 7 and the fixed cone liner 4 are not easy to loosen during operation, ensuring the adjustment accuracy of the discharge port 22, thereby improving the processing quality. At the same time, an iron protection mechanism is provided between the support sleeve 5 and the lower frame 1 to protect the cone crusher from iron.

[0031] A possible implementation of the locking sleeve structure 6 is that the locking sleeve structure 6 includes a second motor 18, an internal gear 19, a gear ring 64, a sleeve body 62, a plurality of arc blocks 63 and an extrusion ring 61. The second motor 18 is vertically slidably connected to the inner side wall of the upper frame body 8 through a vertical sliding limiter. The outer ring of the sleeve body 62 is connected to the inner side wall of the upper frame body 8 through a circumferential sliding limiter. The circumferential sliding limiter satisfies the circumferential rotation of the sleeve body 62 and can move axially at the same time. The plurality of arc blocks 63 are distributed in a ring array and are radially slidably connected to the sleeve body 62 through a radial sliding limiter.

[0032] During operation, since the radial sliding limiter can only allow the arc block 63 and the sleeve 62 to move radially, but not circumferentially and axially, the output end of the second motor 18 rotates to drive the internal gear 19 to rotate, thereby driving the ring gear 64, the sleeve 62 and multiple arc blocks 63 to rotate. Since the arc block 63 is screwed to the thread of the adjustment sleeve 7 through the internal thread, the rotation of the arc block 63 is also accompanied by the vertical movement of the sleeve 62 and the ring gear 64. At this time, the vertical sliding limiter between the second motor 18 and the upper frame 8 plays a role, ensuring that the second motor 18 moves stably without affecting the meshing relationship between the internal gear 19 and the ring gear 64. Of course, the internal gear 19 and the ring gear 64 can also be specially designed, such as Figure 7 As shown, protruding limit plates are designed on the upper and lower end surfaces of the gear ring 64 to prevent the internal gear 19 from separating from the gear ring 64. When the arc block 63 and the sleeve body 62 move downward, the arc block 63 will contact the extrusion ring 61 on the support sleeve 5. Since the upper surface of the extrusion ring 61 is an inclined surface inclined inwardly, the bottom of the arc block 63 is designed as a contoured surface 65 matching the inclined surface of the extrusion ring 61. Therefore, after the two contact, as the arc block 63 continues to be squeezed in the vertical direction, the existence of the inclined surface causes the arc block 63 to be subjected to an inward force, that is, a radial force, and due to the existence of the radial sliding limiter, the arc block 63 can move inwardly. It should be explained here that although the arc block 63 and the adjustment sleeve 7 are in a rotational connection, in order to ensure the normal rotation of the two, there must be a gap between the threads of the two. It can also be considered that the two are "transitional" fit, and it is precisely because multiple arc blocks 63 move radially inward to fill this gap and reach abutment that the adjustment sleeve 7 can be completely stuck to achieve the tightening effect, while also avoiding damage to the threads of the adjustment sleeve 7.

[0033] Among them, the vertical sliding limiter includes a dovetail block 17, and a dovetail groove 16 is vertically opened on the inner wall of the upper frame 8. The second motor 18 is installed on the dovetail block 17. The dovetail block 17 is slidably connected to the dovetail groove 16 to ensure that the second motor 18 can move and work stably without affecting the meshing relationship between the internal gear 19 and the ring gear 64.

[0034] The circumferential sliding limiter adopts the cooperation of the slide rail 68 and the slide groove 69, such as Figure 8 As shown, a slide groove 69 is vertically opened on the inner wall of the upper frame body 8, and the slide rail 68 is fixedly connected to the side wall of the sleeve body 62, and the slide rail 68 is slidably connected to the slide groove 69. The slide groove 69 satisfies the slide rail 68 to rotate and slide inside it and move vertically, so that it can work normally while ensuring the stability of the sleeve body 62 during operation.

[0035] The radial sliding limiter includes a block 67. A limit groove 66 is radially provided at the bottom of the sleeve 62. The block 67 is arranged at the top of the arc block 63 and corresponds to the position of the limit groove 66. The block 67 is slidably connected to the limit groove 66. Fig. 9 As shown, a reset elastic member 60 can also be provided between the clamping block 67 and the side wall of the limiting groove 66. During operation, the arc block 63 is squeezed and moves radially to the right, and the reset elastic member 60 is stretched and stored. After the operation is completed, the pressure is released, and the reset elastic member 60 pulls the arc block 63 to reset. The reset elastic member 60 here can be a spring.

[0036] A possible implementation of the iron-passing protection mechanism, the iron-passing protection mechanism includes an iron-passing hydraulic cylinder 15 and an iron-passing detection sensor 20, the iron-passing hydraulic cylinder 15 is fixedly arranged on the lower frame 1, the telescopic end of the iron-passing hydraulic cylinder 15 is fixedly connected to the support sleeve 5, and the iron-passing detection sensor 20 is arranged between the adjustment sleeve 7 and the mounting plate 13. During operation, once an overload or iron-passing occurs at the discharge port 22, a large force is applied to the fixed cone lining and the mounting plate 13, so that the iron-passing detection sensor 20 is sensed and transmits a signal, allowing the iron-passing hydraulic cylinder 15 to work immediately, and the telescopic end is lifted to drive the support sleeve 5, and the elastic clip 14 is forced to open, so that the support sleeve 5 is separated from the lower frame 1, and the upper frame 8, the adjustment sleeve 7 and the fixed cone lining 4 connected to the support sleeve 5 move upward, thereby expanding the discharge port 22 to avoid damage to the equipment due to iron-passing. In addition, a fixed cone hydraulic cylinder 12 may be provided at the bottom of the adjustment sleeve, the telescopic end of the fixed cone hydraulic cylinder 12 is fixedly connected to the surface of the mounting plate 13, and the iron passing detection sensor 20 is provided at the connection between the telescopic end of the fixed cone hydraulic cylinder 12 and the mounting plate 13. During the adjustment work, the fixed cone hydraulic cylinder 12 can drive the mounting plate 13 and the fixed cone lining plate 4 to move, and the size of the discharge port 22 can be adjusted within a certain range; during the iron passing protection, the fixed cone hydraulic cylinder 12 can also drive the mounting plate 13 and the fixed cone lining plate 4 to move upward to solve the problem of iron passing or overload.

[0037] In the present invention, the moving cone mechanism 2 is arranged on the lower frame 1, and the moving cone lining plate 3 is arranged on the top of the moving cone mechanism 2. This part is the prior art and the present invention does not make any limiting description.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cone locking device for a cone crusher, characterized in that: The invention comprises a lower frame (1), a movable cone mechanism (2), a movable cone liner (3), an upper frame (8), an adjustment sleeve (7), a support sleeve (5), a feeding port (9) and a fixed cone liner (4), wherein the movable cone mechanism (2) is arranged on the lower frame (1), and the movable cone liner (3) is arranged on the top of the movable cone mechanism (2), the support sleeve (5) is arranged on the lower frame (1) through an elastic clamping member (14), the inner ring of the support sleeve (5) is provided with an internal thread, the outer ring of the adjustment sleeve (7) is provided with an external thread, the adjustment sleeve (7) is screwed into the interior of the support sleeve (5), the bottom of the adjustment sleeve (7) is connected to a mounting plate (13), the fixed cone liner (4) is fixedly connected to the mounting plate (13), and a fixed cone liner (4) and the movable cone liner (3) are formed between the fixed cone liner (4) and the movable cone liner (3). A discharge port (22), a feeding port (9) is arranged on the top of the adjustment sleeve (7) and the fixed cone liner (4), the upper frame (8) is fixedly connected to the top of the adjustment sleeve (7) and wrapped around the outer side of the upper part of the adjustment sleeve (7), a toothed disc (10) is fixedly arranged on the outer wall of the upper frame (8), a first motor (11) is arranged outside the support sleeve (5), a long gear (21) is arranged at the output end of the first motor (11), and the long gear (21) is meshed with the toothed disc (10); a locking sleeve structure (6) is arranged between the inner wall of the upper frame (8) and the adjustment sleeve (7), and the locking sleeve structure (6) can radially lock multiple positions of the adjustment sleeve (7); and an iron protection mechanism is arranged between the support sleeve (5) and the lower frame (1).

2. The cone locking device for a cone crusher according to claim 1, characterized in that: The locking sleeve structure (6) comprises a second motor (18), an internal gear (19), a gear ring (64), a sleeve body (62), a plurality of arc blocks (63) and an extrusion ring (61); the second motor (18) is vertically slidably connected to the inner side wall of the upper frame body (8) via a vertical sliding limiter; the internal gear (19) is fixedly connected to the output end of the second motor (18); the gear ring (64) is fixedly connected to the sleeve body (62); the outer ring of the sleeve body (62) is connected to the inner side wall of the upper frame body (8) via a circumferential sliding limiter; the circumferential sliding limiter is fully The foot sleeve body (62) can move axially while rotating in a circular motion. A plurality of arc blocks (63) are distributed in an annular array and are radially slidably connected to the sleeve body (62) via a radial sliding stopper. An internal thread is provided on the side of the arc block (63) facing the external thread of the adjustment sleeve (7), and the arc block (63) is screwed to the adjustment sleeve (7) via the internal thread. The extrusion ring (61) is arranged on the upper end surface of the support sleeve (5). The upper surface of the extrusion ring (61) is an inclined surface inclined inwardly. The bottom of the arc block (63) is designed to be a contoured surface (65) matching the inclined surface of the extrusion ring (61).

3. The cone locking device for a cone crusher according to claim 2, characterized in that: The vertical sliding limiter comprises a dovetail block (17), a dovetail groove (16) is vertically opened on the inner wall of the upper frame (8), the second motor (18) is mounted on the dovetail block (17), and the dovetail block (17) is slidably connected to the dovetail groove (16).

4. The cone locking device for a cone crusher according to claim 2, characterized in that: The circumferential sliding limiter comprises a slide rail (68), and a slide groove (69) is vertically provided on the inner side wall of the upper frame body (8). The slide rail (68) is fixedly connected to the side wall of the sleeve body (62), and the slide rail (68) is slidably connected to the slide groove (69). The slide groove (69) satisfies the requirements of the slide rail (68) for rotating, sliding, and vertical movement therein.

5. The cone locking device for a cone crusher according to claim 2, characterized in that: The radial sliding limiter comprises a clamping block (67). A limit groove (66) is radially provided at the bottom of the sleeve (62). The clamping block (67) is arranged at the top of the arc block (63) and corresponds to the position of the limit groove (66). The clamping block (67) is slidably connected to the limit groove (66).

6. The cone locking device for a cone crusher according to claim 5, characterized in that: A resetting elastic member (60) is provided between the clamping block (67) and the side wall of the limiting groove (66).

7. The cone locking device for a cone crusher according to claim 6, characterized in that: The resetting elastic member (60) is a spring.

8. The cone locking device for a cone crusher according to claim 1, characterized in that: The iron-passing protection mechanism comprises an iron-passing hydraulic cylinder (15) and an iron-passing detection sensor (20); the iron-passing hydraulic cylinder (15) is fixedly arranged on the lower frame (1); the telescopic end of the iron-passing hydraulic cylinder (15) is fixedly connected to the support sleeve (5); and the iron-passing detection sensor (20) is arranged between the adjustment sleeve (7) and the mounting plate (13).

9. The cone locking device for a cone crusher according to claim 8, characterized in that: A fixed-cone hydraulic cylinder (12) is arranged at the bottom of the support sleeve (5); the telescopic end of the fixed-cone hydraulic cylinder (12) is fixedly connected to the surface of the mounting plate (13); and the iron-passing detection sensor (20) is arranged at the connection between the telescopic end of the fixed-cone hydraulic cylinder (12) and the mounting plate (13).

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