CN204448122U - A kind of multi-cylinder cone crusher - Google Patents

Abstract

The utility model relates to the field of mining equipment, in particular to a multi-cylinder cone crusher. A multi-cylinder cone crusher, including a frame, and a transmission mechanism, an eccentric mechanism, a moving cone group, and a moving cone anti-rotation mechanism arranged in the frame; the transmission mechanism is connected to the eccentric mechanism by transmission, and the moving cone group The lower end is positioned and installed in the eccentric mechanism, and the upper end of the moving cone anti-rotation mechanism is connected to the lower end of the moving cone group; the eccentric swing of the moving cone group of the multi-cylinder cone crusher is stable.

Description

A multi-cylinder cone crusher

technical field

The utility model relates to the field of mining equipment, in particular to a multi-cylinder cone crusher.

Background technique

Multi-cylinder cone crusher is a kind of mining machinery used for crushing stones. Its principle is to drive the moving cone group to rotate through the eccentric mechanism, and to crush stones through the cooperation between the moving cone group and the fixed cone frame. However, the existing multi-cylinder cone crusher has the following disadvantages: 1. The eccentric mechanism includes a bearing seat and an eccentric bushing, and the eccentric bushing is positioned in the bearing seat through the bearing; and the contact between the eccentric bushing and the bearing 2. The installation stability of the moving cone group of the cone crusher is insufficient, which is specifically reflected in the fact that the moving cone is set on the moving cone shaft , The circumferential direction between the moving cone and the moving cone shaft is not fixed, and it is easy to cause deflection and loosening; 3. The lower end of the moving cone group of the existing multi-cylinder cone crusher is not equipped with a moving cone anti-rotation mechanism, resulting in the movement of the moving cone group. The pendulum direction is not fixed, which is easy to cause material slippage and poor stone crushing effect; 4. The connection between the moving cone group and the eccentric mechanism is only to position the lower end of the moving cone shaft in the eccentric bushing through the bearing, and the moving cone group swings During the process, the balance degree of the dynamic cone group is insufficient, resulting in unstable swing amplitude of the dynamic cone group. After crushing, the size of the stone particles is different, and the crushing effect is not good.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is to provide a multi-cylinder cone crusher, the eccentric swing of the moving cone group of the multi-cylinder cone crusher is stable.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A multi-cylinder cone crusher, including a frame, and a transmission mechanism, an eccentric mechanism, a moving cone group and a moving cone anti-rotation mechanism arranged in the frame; the transmission mechanism is connected to the eccentric mechanism by transmission, and the moving cone group The lower end is positioned and installed in the eccentric mechanism, and the upper end of the moving cone anti-rotation mechanism is connected with the lower end of the moving cone group;

The eccentric mechanism includes an eccentric bushing, and an upper axial thrust bearing, a lower axial thrust bearing, an upper radial roller bearing and a lower radial roller bearing positioned and installed in the eccentric bushing; the eccentric bushing includes The inner ring of the shaft sleeve, the outer ring of the shaft sleeve and the shaft sleeve ring, the inner end of the shaft sleeve ring is integrally connected with the outer wall surface of the inner ring of the shaft sleeve, and the outer end of the shaft sleeve ring is integrally connected with the inner wall surface of the outer ring of the shaft sleeve; An upper bearing groove is formed between the upper end surface of the shaft sleeve ring, the inner ring of the shaft sleeve, and the outer ring of the shaft sleeve, and the upper axial thrust bearing is installed in the upper bearing groove, and the bottom bearing ring of the upper axial thrust bearing and the eccentric sleeve The interference fit between the inner ring of the sleeve; the lower end surface of the sleeve ring and the inner ring of the sleeve form the lower bearing groove, the lower axial thrust bearing is installed in the lower bearing groove, the top bearing ring of the lower axial thrust bearing and The inner rings of the eccentric bushings have an interference fit; the inner rings of the bushings are divided into an eccentric top and an eccentric bottom. The upper radial roller bearing is installed in the central through hole of the eccentric top, and the lower radial roller bearing is installed in the central through hole of the eccentric bottom;

The moving cone group includes a moving cone shaft and a moving cone set outside the moving cone shaft; the moving cone shaft is composed of a moving cone shaft and a moving cone shaft top arranged above the moving cone shaft; The interior of the cone is provided with a stepped through hole with a large diameter at the lower part and a small diameter at the upper part; the stepped through hole is divided into a bearing installation hole, a shaft body installation hole and a shaft top installation hole from bottom to top, and the lower end of the bearing installation hole is also provided along its periphery. Thrust bearing groove; the shaft top of the movable cone is installed in the shaft top installation hole of the movable cone with interference, and the upper end of the shaft of the movable cone is installed in the shaft installation hole of the movable cone with interference;

The moving cone anti-reverse rotation mechanism includes a vertical shaft arranged on the frame, a braking shaft and a one-way clutch arranged inside the vertical shaft, and a universal coupling arranged between the braking shaft and the moving cone shaft; The inside of the vertical shaft is provided with a brake shaft hole that runs through the center of the vertical shaft, and a backstop installation groove that communicates with the lower end of the brake shaft hole. The one-way clutch is installed in the backstop installation groove, and the brake shaft passes through the brake shaft. In the shaft hole, the lower end of the brake shaft is connected with the one-way clutch;

The eccentric top of the eccentric shaft sleeve is located in the bearing installation hole of the movable cone, the top bearing ring of the upper axial thrust bearing is positioned in the thrust bearing groove of the movable cone, and the lower end of the movable cone shaft is positioned and installed on the upper diameter In the roller bearing, the upper end of the vertical shaft is positioned and installed in the lower radial roller bearing, and the universal coupling is installed in the coupling stepped hole of the eccentric bushing; the universal coupling includes a shaft fixed under the movable cone shaft a torque disc on the end face, a brake disc fixed on the upper end of the brake shaft, and a floating disc arranged between the torque disc and the brake disc; the lower end face of the floating disc is provided with a lower connecting groove, The upper end surface is provided with an upper connection groove, the lower connection groove and the upper connection groove are perpendicular to each other and connected in the middle, and there are two oil storage tanks in the upper connection groove, and the two oil storage grooves are respectively arranged on both sides of the middle part of the lower connection groove; the torque The disc is arranged in the upper connection groove of the floating disk with clearance fit, and the upper end of the brake disc is arranged in the lower connection groove of the floating disk with clearance fit.

As a preference, the coupling stepped hole of the eccentric bushing communicates with the upper bearing groove, the lower bearing groove, and the central through hole of the eccentric bottom through a thin oil channel, and the lower bearing groove communicates with the central through hole of the eccentric bottom, and the upper bearing groove. It communicates through the thin oil passage; when the rolling bearing cone crusher is working, the lubricating oil on the frame is drained into the eccentric bushing to lubricate the upper radial roller bearing and the lower radial roller bearing, and the lubricating oil flows out through the thin oil passage for Lubricate the upper axial thrust bearing and the lower axial thrust bearing; through this structure, a lubricating oil path can be realized to lubricate the bearings on the inner and outer sides of the eccentric bushing, thereby simplifying the lubricating line.

As a preference, the central through hole at the eccentric bottom is a center through hole; during installation, the center through hole of the eccentric bushing is positioned on the frame through the lower radial roller bearing, and the moving cone group is positioned through the upper radial roller bearing In the central through hole of the eccentric top, the eccentric shaft sleeve rotates eccentrically around the positive center through hole.

Preferably, the lower end of the eccentric bushing is fixed with bevel teeth of the eccentric bushing, and the inner end of the bevel teeth of the eccentric bushing axially defines the outer bearing ring of the lower radial roller bearing.

Preferably, the upper end of the eccentric bushing is provided with a bearing retaining ring, and the bearing retaining ring axially positions the upper radial roller bearing.

As a preference, a pressure plate is also provided on the upper end surface of the vertical shaft, the brake disc and the floating plate are above the pressure plate, and the lower end surface of the brake disc and the lower end surface of the floating plate are all smoothly matched with the upper end surface of the pressure plate ;By setting the pressure plate to support the brake disc and the floating disc, and the smooth cooperation between the brake disc and the floating disc and the pressure plate can reduce the friction encountered by the swing of the moving cone group and make the swing of the moving cone group smoother .

Preferably, the outer ring of the one-way clutch is fixed by a cut-off screw; the one-way clutch is used to one-way restrict the moving cone group, and when the reverse torque of the moving cone group is too large, the cut-off screw is preferentially broken to protect the one-way clutch and other components not damaged.

As a preference, the outer wall surface of the movable cone is also tapered with a movable cone liner, the inner surface of the lower end of the movable cone liner is closely attached to the outer surface of the lower end of the movable cone; the inner surface of the upper end of the movable cone liner is A movable cone groove for filling epoxy resin is formed between the outer surface of the upper end of the movable cone, and the upper end of the movable cone shaft is threadedly connected with a fastening nut, and the fastening nut axially positions the movable cone liner; the movable cone liner and the The axial lower end of the movable cone liner is fixed by a taper sleeve between the movable cones, epoxy resin is adhered to fix the circumferential direction of the movable cone liner, and the fastening nut is positioned to fix the axial upper end of the movable cone liner; through three kinds of connections The structure makes the movable cone liner firmly connected to the movable cone with good stability.

Preferably, a cutting ring is provided between the fastening nut and the upper end of the movable cone liner; during disassembly, the cutting ring can be cut off, so that the fastening nut can be unscrewed and the movable cone liner can be disassembled.

Preferably, a protective cap is provided above the fastening nut; when the cone crusher is working, a large amount of stone is fed from above the movable cone group, and the protective cap is used to prevent the fastening nut and the movable cone shaft from being impacted and worn by the stone.

The utility model adopts the above-mentioned technical scheme, and the multi-cylinder cone crusher has the following four advantages: 1. The upper axial thrust bearing in the eccentric mechanism is installed in the upper bearing groove of the eccentric shaft sleeve, and the bottom of the upper axial thrust bearing The interference fit between the bearing ring and the inner ring of the eccentric bushing; the lower axial thrust bearing is installed in the lower bearing groove, and the interference fit between the top bearing ring of the lower axial thrust bearing and the inner ring of the eccentric bushing Coordination; through this structure, both the upper axial thrust bearing and the lower axial thrust bearing are fixedly installed on the eccentric bushing, and the misalignment between the eccentric bushing and the bearing is not easy to occur, and the positioning effect is good; 2. The movable cone shaft top is installed on the In the installation hole of the shaft top of the moving cone, the upper end of the shaft of the moving cone is installed in the shaft installation hole of the moving cone; ensure that the connection between the moving cone and the shaft of the moving cone is firm, and prevent the circumferential deflection of the moving cone ; 3. The lower end of the brake shaft is connected with the one-way clutch, and the upper end of the brake shaft is connected with the moving cone group through the universal coupling; when the cone crusher is working, the moving cone group is restricted by the one-way clutch and can only swing in one direction , so as to ensure the stability of the pendulum of the moving cone group and prevent the stone from slipping; 4. The lower end of the cone shaft is positioned and installed in the upper radial roller bearing of the eccentric mechanism, and the upper axial thrust is passed between the moving cone and the eccentric bushing Bearing positioning support; when the moving cone swings, the radial roller bearing above the moving cone is the center, and the upper axial thrust bearing is the track, so as to balance the moving cone group and make the swinging amplitude of the moving cone group stable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an enlarged view of part A of Fig. 1 .

FIG. 3 is an enlarged view of part B of FIG. 1 .

Fig. 4 is a schematic structural diagram of the universal joint.

Fig. 5 is a schematic diagram of a partial structure of the utility model.

Fig. 6 is a schematic diagram of the structure of the moving cone.

Fig. 7 is a structural schematic diagram of the eccentric mechanism.

Detailed ways

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.

A multi-cylinder cone crusher as shown in Figures 1 to 7, including a frame 1, and a transmission mechanism 3, an eccentric mechanism 4, a moving cone group 5 and a moving cone anti-rotation mechanism 6 arranged in the frame The transmission mechanism 3 is connected to the eccentric mechanism 4 through transmission, the lower end of the moving cone group 5 is positioned and installed in the eccentric mechanism 4, and the upper end of the moving cone anti-rotation mechanism 6 is connected to the lower end of the moving cone group 5 .

The following paragraphs describe each component of the cone crusher in detail:

Eccentric mechanism:

The eccentric mechanism 4 includes an eccentric bushing, an upper axial thrust bearing 42 , a lower axial thrust bearing 43 , an upper radial roller bearing 44 and a lower radial roller bearing 45 . The eccentric bushing includes a shaft sleeve inner ring 411, a shaft sleeve outer ring 412, and a shaft sleeve connecting ring 413 for integrally connecting the shaft sleeve inner ring 411 and the shaft sleeve outer ring 412. The lower end surface of the shaft sleeve outer ring 412 is fixed with Counterweight 415 is used to balance the entire eccentric shaft sleeve. An upper bearing groove 414 is formed between the upper end surface of the sleeve connecting ring 413, the inner ring 411 of the sleeve, and the outer ring 412 of the sleeve, and the upper axial thrust bearing 42 is installed in the upper bearing groove 414, and the upper axial thrust bearing 42 There is an interference fit between the bottom bearing ring of the eccentric bushing and the bushing inner ring 411 of the eccentric bushing. A lower bearing groove 416 is formed between the lower end surface of the shaft sleeve connecting ring 413 and the inner ring 411 of the shaft sleeve. The lower axial thrust bearing 43 is installed in the lower bearing groove 416. Interference fit between the inner rings 411 of the shaft sleeve. During installation, first heat the bottom bearing ring of the upper axial thrust bearing 42 and the top bearing ring of the lower axial thrust bearing 43, and then install them on the outer side of the inner ring 411 of the shaft sleeve.

The sleeve inner ring 411 is divided into an eccentric top 411a and an eccentric bottom 411b. The central through hole of the eccentric bottom 411b is a center through hole. There is an eccentric angle α between the axis of the eccentric top 411a and the axis of the eccentric bottom 411b. The eccentric angle α is less than 10°; the upper radial roller bearing 44 is installed in the central through hole of the eccentric top 411a, and an upper bearing retaining ring 46 is arranged at the port of the eccentric top 411a, and the upper bearing retaining ring 46 axially limits the upper radial The outer bearing ring of the roller bearing 44. The lower radial roller bearing 45 is installed in the central through hole of the eccentric bottom 411b, the lower end of the eccentric bottom 411b is fixed with the eccentric bushing bevel teeth 47, and the inner end of the eccentric bushing bevel teeth 47 axially defines the lower radial roller The outer bearing ring of the bearing 45.

The central through hole of the eccentric top 411a communicates with the central through hole of the eccentric bottom 411b through the coupling stepped hole 411c; the inside of the eccentric bushing is provided with a thin oil channel b, specifically the coupling stepped hole 411c and the upper bearing groove 414, the lower bearing groove 416 and the central through hole of the eccentric bottom 411b communicate through the thin oil passage b, and the lower bearing groove 416 communicates with the central through hole of the eccentric bottom 411b and the upper bearing groove 414 through the thin oil passage b. When the rolling bearing cone crusher is working, the lubricating oil on the frame is drained into the eccentric bushing to lubricate the upper radial roller bearing and the lower radial roller bearing, and the lubricating oil flows out through the thin oil channel to lubricate the upper axial thrust bearing and the lower axial thrust bearing; through this structure, a lubricating oil path can be realized to lubricate the bearings on the inner and outer sides of the eccentric bushing, thereby simplifying the lubricating line.

Moving cone group:

The moving cone group 5 includes a moving cone shaft 51, a moving cone body 52 and a moving cone liner 53, the outer surface of the moving cone 52 is tapered, and the inside of the moving cone 52 is provided with a step with a large diameter at the lower part and a small diameter at the top Through holes; the stepped through holes run through the upper and lower ends of the moving cone 52. The stepped through holes are divided into the lower bearing mounting hole 521, the middle shaft body mounting hole 522 and the upper shaft top mounting hole 523. The lower end of the bearing mounting hole 521 is along its Thrust bearing grooves 524 are also provided on the periphery. The moving cone shaft 51 is composed of a moving cone shaft body 511 and a moving cone shaft top 512 disposed above the moving cone shaft body 511 are integrally connected. During installation, the movable cone 52 is sleeved on the movable cone shaft 51, the upper end of the movable cone shaft 511 is in interference fit with the shaft installation hole 522 of the movable cone 52, and the movable cone shaft top 512 and the shaft top of the movable cone 52 The installation hole 523 has an interference fit; thus, the connection between the movable cone and the shaft of the movable cone is firm, and the circumferential deflection of the movable cone is prevented.

The moving cone liner 53 is sleeved on the outer surface of the moving cone 52, the inner side of the lower end of the moving cone liner 53 is closely matched with the moving cone 52, and the inner side of the upper end of the moving cone liner 53 is closely matched with the moving cone 52. A movable cone groove 54 for filling epoxy resin is formed between them; an internal thread connection hole is opened on the movable cone shaft top 512, and a fastening nut 55 is threaded on the movable cone shaft top 512, and the fastening nut 55 axially positions the movable A cutting ring 57 is provided between the cone liner 53 , the fastening nut 55 and the upper end of the movable cone liner 53 . This structure restricts the downward sliding of the movable cone liner 53 through the taper fit between the movable cone liner 53 and the movable cone body 52; the movable cone groove 54 between the movable cone liner 53 and the movable cone 52 is filled with epoxy resin , to limit the sliding of the movable cone liner 53; the fastening nut 55 presses the upper end surface of the movable cone liner 53 through the cutting ring 57, and limits the upward sliding of the movable cone liner 53; the above-mentioned three kinds of connections make the movable cone liner The connection between the plate 53 and the movable cone 52 is firm, and relative sliding will not occur. When the movable cone liner 53 needs to be replaced, the cutting ring 57 can be cut off, the fastening nut 55 can be unscrewed, and the movable cone liner 53 can be knocked to make it Loosen with the movable cone 52, take off from the upper end of the movable cone shaft 51.

A protective cap 56 is also provided above the fastening nut 55, and the protective cap 56 is used to prevent the fastening nut 55 and the moving cone shaft 51 from being damaged by the impact of stones, and plays a protective role. The upper end of the movable cone liner 53 is also provided with a plurality of movable cone reinforcing ribs 531, and a plurality of glue injection holes 532 connected with the movable cone groove 54, and the plurality of glue injection holes 532 are regularly distributed along the upper port of the movable cone liner 53 , used to evenly add epoxy resin to the moving cone groove 54; a plurality of moving cone reinforcing ribs 531 are regularly distributed along the upper port of the moving cone liner 53, and the moving cone reinforcing ribs 531 strengthen the moving cone liner 53 on the one hand Function; on the other hand, it can accumulate stones at the feed port and protect the movable cone liner 53.

During installation, the positioning of the lower end of the moving cone group 5 is installed in the eccentric mechanism 4, specifically the positioning of the lower end of the moving cone shaft body 511 is installed in the upper radial roller bearing 44 of the eccentric mechanism, and the eccentric top 411a on the eccentric bushing is in the In the bearing mounting hole of the moving cone, the top bearing ring of the upper axial thrust bearing 42 is positioned in the thrust bearing groove 524 of the moving cone; when the moving cone swings, the radial roller bearing above the moving cone is the center, and the above The axial thrust bearing is the track, so as to balance the moving cone group, so that the swing amplitude of the moving cone group is stable. In addition, a sealing device 58 is provided on the outside of the upper axial thrust bearing 42. The sealing device 58 includes an upper sealing ring fixed on the lower end surface of the movable cone, and a lower sealing ring fixed on the upper end surface of the outer ring of the eccentric bushing. The upper sealing ring and the lower sealing ring are closely sealed and matched; the dust in the stone can be prevented from entering the eccentric mechanism through the sealing device 58 to ensure its normal operation.

Moving cone anti-reverse rotation mechanism:

The moving cone anti-reverse rotation mechanism 6 includes a vertical shaft 61, a brake shaft 62, a one-way clutch 63 and a universal coupling 6a. The vertical shaft 61 is used to be installed on the underframe of the cone crusher. The inside of the vertical shaft 61 is provided with a brake shaft hole 611 passing through the center of the vertical shaft 61 and a backstop installation groove 612 communicating with the lower end of the brake shaft hole 611 . The one-way clutch 63 is installed in the backstop installation groove 612, the brake shaft 62 is passed through the brake shaft hole 611, and the lower end of the brake shaft 62 is connected with the one-way clutch 63; when the cone crusher is working, the moving cone group Restricted by the one-way clutch, it can only swing in one direction, thus ensuring the stability of the swing of the moving cone group and preventing the stone from slipping. The outer ring of the one-way clutch 63 is fixed by a cutoff screw 631 . The one-way clutch 63 is used for one-way restriction of the moving cone group, and when the reverse torque of the moving cone group is too large, the cut-off screw 631 is preferentially broken to protect the one-way clutch 63 and other parts from being damaged.

During installation, the upper end of the vertical shaft 61 is positioned and installed in the lower radial roller bearing 45, and the universal coupling 6a is installed in the coupling stepped hole 411c of the eccentric shaft sleeve. The universal coupling 6a includes a torque disc 64 fixed on the lower end surface of the movable cone shaft 51, a brake disc 65 fixed on the upper end of the brake shaft 62, and a brake disc 65 arranged on the torque disc 64 and the brake disc. Floating disk 66 between disks 65 . The lower end surface of the floating disc 66 is provided with a lower connecting groove, and the upper end surface is provided with an upper connecting groove, the lower connecting groove and the upper connecting groove are perpendicular to each other and communicate in the middle, and two oil storage tanks are also arranged in the upper connecting groove, two The oil storage tanks are respectively arranged on both sides of the middle part of the lower connection tank. The torque disc 64 is set in the upper connecting groove of the floating disc 66 with a clearance fit, and the brake disc 65 is set in the lower connecting groove of the floating disc 66 with a clearance fit. This structure ensures that the torque disc can drive the floating disc to rotate and at the same time adjust the circumferential swing, and finally ensure that the universal coupling adapts to every angle during the swing of the moving cone group 5, and has good stability.

The upper end surface of the vertical shaft 61 is also provided with a pressure plate 67, the brake disc 65 and the floating plate 66 are all above the pressure plate 67, and the lower end surface of the brake disc 65 and the lower end surface of the floating plate 66 are all in contact with the pressure plate 67. smooth fit on the upper surface. By setting the pressure plate 67, it is used to support the brake disc 65 and the floating disc 66, and the brake disc 65 and the floating disc 66 are all smoothly matched with the pressure plate 67, which can reduce the friction encountered by the rotary pendulum of the moving cone group, so that the moving cone The group swivels more smoothly.

Claims (10)

1. A multi-cylinder cone crusher, comprising a frame, and a transmission mechanism, an eccentric mechanism, a moving cone group and a moving cone anti-rotation mechanism arranged in the frame; The lower end of the cone group is positioned and installed in the eccentric mechanism, and the upper end of the moving cone anti-rotation mechanism is connected with the lower end of the moving cone group; the characteristics are as follows: The eccentric mechanism includes an eccentric bushing, and an upper axial thrust bearing, a lower axial thrust bearing, an upper radial roller bearing and a lower radial roller bearing positioned and installed in the eccentric bushing; the eccentric bushing includes The inner ring of the shaft sleeve, the outer ring of the shaft sleeve and the shaft sleeve ring, the inner end of the shaft sleeve ring is integrally connected with the outer wall surface of the inner ring of the shaft sleeve, and the outer end of the shaft sleeve ring is integrally connected with the inner wall surface of the outer ring of the shaft sleeve; An upper bearing groove is formed between the upper end surface of the shaft sleeve ring, the inner ring of the shaft sleeve, and the outer ring of the shaft sleeve, and the upper axial thrust bearing is installed in the upper bearing groove, and the bottom bearing ring of the upper axial thrust bearing and the eccentric sleeve The interference fit between the inner ring of the sleeve; the lower end surface of the sleeve ring and the inner ring of the sleeve form the lower bearing groove, the lower axial thrust bearing is installed in the lower bearing groove, the top bearing ring of the lower axial thrust bearing and The inner rings of the eccentric bushings have an interference fit; the inner rings of the bushings are divided into an eccentric top and an eccentric bottom. The upper radial roller bearing is installed in the central through hole of the eccentric top, and the lower radial roller bearing is installed in the central through hole of the eccentric bottom; The moving cone group includes a moving cone shaft and a moving cone set outside the moving cone shaft; the moving cone shaft is composed of a moving cone shaft and a moving cone shaft top arranged above the moving cone shaft; The interior of the cone is provided with a stepped through hole with a large diameter at the lower part and a small diameter at the upper part. The stepped through hole is divided into a bearing installation hole, a shaft body installation hole and a shaft top installation hole from bottom to top. Thrust bearing groove; the shaft top of the movable cone is installed in the shaft top installation hole of the movable cone with interference, and the upper end of the shaft of the movable cone is installed in the shaft installation hole of the movable cone with interference; The moving cone anti-reverse rotation mechanism includes a vertical shaft arranged on the frame, a braking shaft and a one-way clutch arranged inside the vertical shaft, and a universal coupling arranged between the braking shaft and the moving cone shaft; The inside of the vertical shaft is provided with a brake shaft hole that runs through the center of the vertical shaft, and a backstop installation groove that communicates with the lower end of the brake shaft hole. The one-way clutch is installed in the backstop installation groove, and the brake shaft passes through the brake shaft. In the shaft hole, the lower end of the brake shaft is connected with the one-way clutch; The eccentric top of the eccentric shaft sleeve is located in the bearing installation hole of the movable cone, the top bearing ring of the upper axial thrust bearing is positioned in the thrust bearing groove of the movable cone, and the lower end of the movable cone shaft is positioned and installed on the upper diameter In the roller bearing, the upper end of the vertical shaft is positioned and installed in the lower radial roller bearing, and the universal coupling is installed in the coupling stepped hole of the eccentric bushing; the universal coupling includes a shaft fixed under the movable cone shaft a torque disc on the end face, a brake disc fixed on the upper end of the brake shaft, and a floating disc arranged between the torque disc and the brake disc; the lower end face of the floating disc is provided with a lower connecting groove, The upper end surface is provided with an upper connection groove, the lower connection groove and the upper connection groove are perpendicular to each other and connected in the middle, and there are two oil storage tanks in the upper connection groove, and the two oil storage grooves are respectively arranged on both sides of the middle part of the lower connection groove; the torque The disc is arranged in the upper connection groove of the floating disk with clearance fit, and the upper end of the brake disc is arranged in the lower connection groove of the floating disk with clearance fit. 2. A multi-cylinder cone crusher according to claim 1, characterized in that: the coupling stepped hole of the eccentric bushing and the upper bearing groove, the lower bearing groove, and the central through hole of the eccentric bottom pass through a thin The oil channel communicates, and the lower bearing groove communicates with the center through hole of the eccentric bottom and the upper bearing groove through the thin oil channel. 3. A multi-cylinder cone crusher according to claim 2, characterized in that: the central through hole at the eccentric bottom is a positive through hole. 4. A multi-cylinder cone crusher according to claim 2, characterized in that: the lower end of the eccentric bushing is fixed with bevel teeth of the eccentric bushing, and the inner end of the bevel teeth of the eccentric bushing axially limits the lower The outer bearing ring of a radial roller bearing. 5. A multi-cylinder cone crusher according to claim 2, characterized in that: the upper end of the eccentric shaft sleeve is provided with a bearing retaining ring, and the bearing retaining ring axially positions the upper radial roller bearing. 6. A multi-cylinder cone crusher according to claim 1, characterized in that: the upper end surface of the vertical shaft is also provided with a pressure plate, the brake disc and the floating disc are located above the pressure plate, braking Both the lower end surface of the disc and the lower end surface of the floating disc are smoothly matched with the upper end surface of the pressure plate. 7. A multi-cylinder cone crusher according to claim 6, characterized in that: the outer ring of the one-way clutch is fixed by cutting screws. 8. A multi-cylinder cone crusher according to claim 1, characterized in that: the outer wall surface of the movable cone is also provided with a movable cone liner, and the inner surface of the lower end of the movable cone liner is in contact with the The outer surface of the lower end of the movable cone is closely fitted; the inner surface of the upper end of the movable cone liner and the outer surface of the upper end of the movable cone form a movable cone groove for filling epoxy resin, and the upper end of the movable cone shaft is threaded. Fastening nut, the fastening nut axially locates the movable cone liner. 9. A multi-cylinder cone crusher according to claim 8, characterized in that a cutting ring is provided between the fastening nut and the upper end of the movable cone liner. 10. A multi-cylinder cone crusher according to claim 9, characterized in that a protective cap is provided above the fastening nut.