CN101947475B - Cone crusher - Google Patents

Abstract

The invention discloses a cone crusher, which comprises a frame and a movable cone main shaft arranged in the frame, wherein the lower end of the movable cone main shaft is provided with an eccentric mechanism, the eccentric mechanism is in transmission connection with a transmission assembly, a supporting assembly for supporting the movable cone main shaft is arranged below the eccentric mechanism, a hydraulic lifting system for changing the height of the supporting assembly is arranged below the supporting assembly, the hydraulic lifting system comprises a hydraulic cylinder body which is fixed on the lower part of the frame and provided with a cavity and a piston which is arranged in the cavity and moves up and down, the supporting assembly is arranged at the upper end of the piston, and the lower end of the hydraulic cylinder body is provided with a hydraulic oil port which is externally connected with a hydraulic station and communicated with the cavity. The cone crusher has the advantages of novel and unique structure and stable operation, improves the rotational speed of an eccentric sleeve, improves the work efficiency and yield thereof, prolongs the service life of a machine, reduces the use cost and avoids 'teleflex' and running vehicle.

Description

a cone crusher

technical field

The invention relates to mining machinery equipment, in particular to a cone crusher.

Background technique

Most of the traditional hydraulic cone crushers are rotary mechanisms with sliding eccentric shaft sleeves, the swing speed of the moving cone is low, and the crushing efficiency is low. For example, a name authorized by the State Intellectual Property Office of China on January 14, 2009 is called "cone crusher". The patent for invention, the authorized announcement number is CN201179454Y, the patent specification discloses a cone crusher, including a frame and a main shaft, an eccentric shaft sleeve is installed in the center of the lower part of the frame, a large conical gear is installed on the upper part of the eccentric shaft sleeve, and the frame There is a bowl-shaped bearing frame in the middle, and the cone body is fixed on the upper end of the main shaft and sits on the bowl-shaped bearing frame. The lower end of the main shaft passes through the bowl-shaped bearing frame and is inserted into the eccentric shaft sleeve. The acetabular wall is placed inside the adjustment sleeve to form a fixed cone, and the small bevel gear meshed with the large bevel gear is connected to the motor power through a transmission shaft and a coupling. The use of dry oil seal also has the following defects: the amount of wear between the eccentric bushing and the main shaft is large; if the main shaft's self-rotating speed is too low, it will cause "turning sleeves", which will accelerate the partial wear of the eccentric bushing; There is a gap, when the crusher changes from no-load to heavy-load, the eccentric bushing will be impacted by a load, which will cause the eccentric bushing to break; if the gap between the main shaft and the eccentric bushing is too small, it will cause a speeding phenomenon, that is, the main shaft Locking occurs with the eccentric shaft sleeve; the speed of the eccentric shaft sleeve is difficult to increase, and the amount of wear is large; the cost of the mechanism itself is relatively low; but if comprehensive consideration is taken into account, such as maintenance, accidents, and customers caused by parking In terms of loss, its cost is very high; the end face of the bottom support disc is a plane structure without an oil storage tank, so the frictional resistance between the discs is large and the wear speed is fast.

Contents of the invention

The problem to be solved by the present invention is to provide a cone crusher with novel structure, uniqueness and stable operation, which improves the rotating speed of the eccentric sleeve, improves the working efficiency and output of the cone crusher, improves the service life of the machine, and reduces the use cost. Avoid the occurrence of "turning sleeve" and flying car.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a cone crusher, including a frame and a movable cone main shaft arranged in the frame, an eccentric mechanism is provided at the lower end of the movable cone main shaft, and the eccentric mechanism is connected to the transmission assembly by transmission. Below the eccentric mechanism is a support assembly supporting the main shaft of the movable cone, and a hydraulic lifting system for changing the height of the support assembly is provided below the support assembly. and a piston that moves up and down in the inner chamber, the support assembly is arranged on the upper end of the piston, and a hydraulic oil port connected to an external hydraulic station is provided at the lower end of the hydraulic cylinder body to communicate with the inner chamber.

Further, the hydraulic cylinder block is provided with a lubricating channel I, and the piston is provided with a lubricating channel II, the lubricating channel I communicates with the lubricating channel II, the entrance of the lubricating channel I is located at the lower end of the outer wall of the hydraulic cylinder block, and the lubricating channel The outlet of II is located on the upper end face of the piston.

Further, the frame includes an upper frame and a lower frame, the upper end of the movable cone main shaft is positioned in the upper frame through bearings, the lower end of the movable cone main shaft passes through the eccentric mechanism and is pressed on the supporting assembly, and the movable cone main shaft is A moving cone is provided; the transmission assembly includes a transmission main shaft arranged in the lower frame, the inner end of the transmission main shaft is provided with a bevel gear for linkage with the eccentric mechanism, and the outer end of the transmission main shaft extends out of the lower frame and is provided with a The pulley driven by the motor.

Further, the movable cone main shaft is provided with a stepped section with a larger diameter, and the movable cone is provided with a stepped hole matched with the stepped section to position the movable cone on the main shaft of the movable cone, and a cone is arranged on the movable cone. The body cover is also provided with a threaded bushing matched with the thread of the movable cone main shaft on the movable cone spindle, and the threaded bush is pressed on the cone cover so that the inner side surface of the lower end of the cone sleeve is against the outer surface of the lower end of the movable cone.

Further, the support assembly includes an upper disc, a middle disc and a lower disc, the upper disc is fixed on the lower end shaft head of the movable cone main shaft, the middle disc is arranged between the upper disc and the lower disc, and the lower disc The disc is fixed on the upper surface of the piston, and the lower surface of the upper disc is provided with a convex spherical surface I, the upper surface of the lower disc is provided with a convex spherical surface II, and the upper surface of the middle disc is provided with a convex spherical surface I. The inner concave spherical surface I is provided with the inner concave spherical surface II which cooperates with the outer convex spherical surface II on the lower surface of the middle disc. The mating surfaces of the three discs in the supporting assembly are processed into a spherical structure, which has an automatic centering effect and enhanced lubrication, which reduces the frictional resistance between the discs and improves the service life.

Further, radial groove I and annular groove I are provided on the convex spherical surface I, radial groove II and annular groove II are provided on the convex spherical surface II; There is a connection block between the lower end shaft heads of the cone spindle, and the upper disk is fixed on the lower end shaft head of the movable cone spindle through the connection block. There is a boss I on the end surface, and the connecting block is fixed on the lower end shaft head of the movable cone spindle through the interference fit between the boss I and the groove. The center hole I of the boss II is provided with a ring groove on the side wall of the part passing through the center hole I, and the ring groove is provided with a retaining ring for positioning the upper disc; the middle disc is provided with a center hole II, and the lower disc A central hole III is provided on the piston, and a boss III corresponding to the center hole III is arranged on the upper end surface of the piston. The outlet of the lubricating channel II is arranged on the upper end surface of the boss III. The grooves are provided to facilitate oil conduction and enhance lubrication; the retaining ring is used to position the upper disc, which is convenient for installation and replacement; the center hole II and center hole III are set to facilitate the lubricating oil in the lubrication channel II to fully lubricate the support assembly.

Further, the eccentric mechanism includes a central sleeve arranged on the lower frame and an eccentric sleeve arranged in the central sleeve, a bearing assembly I is arranged between the eccentric sleeve and the central sleeve, and an eccentric lining is arranged in the eccentric sleeve. The movable cone main shaft passes through the eccentric bushing and is pressed on the supporting assembly. The bearing assembly II is arranged between the eccentric bushing and the movable cone main shaft. The lower end of the eccentric bushing is provided with a gear that meshes with the bevel gear on the transmission assembly.

Further, the bearing assembly I includes a bearing I arranged on the end surface of the outer surface of the eccentric sleeve and a bearing II arranged on the lower end surface of the outer surface of the eccentric sleeve, and the outer surface of the eccentric sleeve is provided with the lower end surface of the inner ring of the locating bearing I and the bearing II The annular protrusion on the upper end surface of the inner ring, the spacer ring on the lower end surface of the outer ring of the positioning bearing I and the upper end surface of the outer ring of the bearing II are arranged in the center sleeve, and the connecting cylinder on the upper end surface of the positioning bearing I is arranged above the central sleeve, The connecting cylinder is positioned on the movable cone, the lower end surface of the inner ring of the bearing II is positioned through the gear, and the bearing stop ring for positioning the lower end surface of the outer ring of the bearing II is fixed on the lower end surface of the eccentric sleeve by screws; Bearing III on the cone spindle, a step on the upper end surface of the inner ring of the positioning bearing III is provided on the movable cone spindle, and a shaft sleeve on the lower end surface of the inner ring of the positioning bearing I II is arranged on the shaft head at the lower end of the movable cone spindle, and the sleeve touches on the connection block. Three rolling bearings realize the rotation between the eccentric sleeve and the center sleeve on the frame and the main shaft of the moving cone, which increases the speed of the eccentric sleeve and reduces the size of the eccentric sleeve and the center sleeve on the frame as well as the size of the eccentric sleeve and the moving cone. The coefficient of friction between the spindles.

Further, the connecting cylinder is provided with a counterweight, and a lubricating passage III is provided in the cylinder body of the connecting cylinder, the inlet of the lubricating passage III is arranged on the outer side wall of the connecting cylinder, and the outlet of the lubricating passage III is arranged on the outer wall of the connecting cylinder. Lower end of inner wall.

After adopting the above-mentioned technical scheme, the present invention has the following advantages: use three rolling bearings to realize the rotation between the eccentric sleeve, the center sleeve on the frame and the movable cone main shaft, increase the rotating speed of the eccentric sleeve, thereby improving the operation of the cone crusher Efficiency and output; at the same time reduce the friction coefficient between the eccentric sleeve and the center sleeve on the frame and reduce the friction coefficient between the eccentric sleeve and the movable cone main shaft, which improves the service life of the machine and reduces the cost of use, and there will be no "turn sleeve " and the occurrence of flying car; the use of the center sleeve facilitates the maintenance of the machine; the end surface of the disc in the support assembly is added into a spherical structure, which reduces the frictional resistance between the discs; there are grooves on the disc , which increases the oil storage capacity of the discs and enhances the lubrication effect, thereby further reducing the resistance between the discs; the height of the main shaft of the moving cone and the moving cone is adjusted by the hydraulic cylinder, which is convenient for adjustment and accurate in positioning.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of an embodiment of the present invention;

Fig. 2 is the structural representation of support assembly;

Figure 3 is an enlarged view of B in Figure 2;

Fig. 4 is the bottom view of convex spherical surface I;

Figure 5 is an enlarged view of A in Figure 1;

Fig. 6 is an enlarged view of point C in Fig. 1 .

Detailed ways

As shown in Figures 1 to 6, a schematic structural view of an embodiment of the present invention, a cone crusher includes a frame 1 and a movable cone main shaft 2 arranged in the frame, and the frame includes an upper frame 11 and a lower frame 12. The lower end of the movable cone main shaft is provided with an eccentric mechanism 3, and the eccentric mechanism is in transmission connection with the transmission assembly 4. The transmission assembly includes a transmission main shaft 41 arranged on the lower frame, and the inner end of the transmission main shaft is provided with a bevel gear 43 which is linked with the eccentric mechanism. The outer end of the drive shaft extends out of the lower frame and is provided with a pulley 42 for interlocking with the motor. A support assembly 5 is provided below the eccentric mechanism to support the movable cone spindle. The upper end of the movable cone spindle is positioned on the upper frame through a bearing. Among them, the lower end of the movable cone main shaft passes through the eccentric mechanism and is pressed on the support assembly. The movable cone main shaft is provided with a movable cone body 21, and the movable cone main shaft is provided with a stepped section 22 with a larger diameter. The stepped hole 23 matched with the section locates the movable cone on the movable cone main shaft, and the movable cone is provided with a cone sleeve 24, and the movable cone main shaft is also provided with a threaded bushing 25 matched with the thread of the movable cone main shaft. The bushing is pressed on the cone sleeve so that the inner surface of the lower end of the cone sleeve is against the outer surface of the lower end of the moving cone; a hydraulic lifting system 6 for changing the height of the supporting assembly is provided below the supporting assembly, and the hydraulic lifting system includes The lower part of the frame has a hydraulic cylinder block 61 with an inner cavity 63 and a piston 62 that moves up and down in the inner cavity. The support assembly is arranged at the upper end of the piston. The lumen is connected.

Described supporting assembly comprises upper disk 51, middle disk 52 and lower disk 53, and upper disk is fixed on the lower end axle nose of movable cone main shaft, and middle disk is arranged between upper disk and lower disk, and lower The disc is fixed on the upper end surface of the piston. The lower surface of the upper disc is provided with a convex spherical surface I511, the upper surface of the lower disc is provided with a convex spherical surface II531, and the upper surface of the middle disc is provided with a convex spherical surface I. The inner concave spherical surface I521 of the middle disk is provided with an inner concave spherical surface II522 cooperating with the outer convex spherical surface II, and the outer convex spherical surface I is provided with a radial groove I512 and an annular groove I513. The outer convex spherical surface The II is provided with a radial groove II532 and an annular groove II533; a connecting block 54 is provided between the upper disk and the lower end shaft head of the movable cone spindle, and the upper disk is fixed on the lower end shaft of the movable cone spindle through the connecting block On the head, a groove 26 is provided on the bottom surface of the shaft head at the lower end of the movable cone spindle, and a boss I541 is provided on the upper surface of the connection block, and the connection block is fixed on the lower end of the movable cone spindle through the interference fit between the boss I and the groove On the shaft head, the lower end surface of the connection block is provided with a boss II542, and the upper disk is provided with a center hole I514 of the sleeve boss II, and the side wall of the part of the center hole I on the boss II is provided with a ring groove 543, and the ring The groove is provided with a retaining ring 544 for positioning the upper disc; the middle disc is provided with a center hole II523, the lower disc is provided with a center hole III534, and the upper end of the piston is provided with a boss III621 correspondingly positioned with the center hole III , the outlet of the lubricating channel II is set on the upper end surface of the boss III.

Described eccentric mechanism comprises the central sleeve 31 that is located on the lower frame and the eccentric sleeve 32 that is located in the central sleeve, is provided with bearing assembly 1 between the eccentric sleeve and the central sleeve, is provided with the eccentric bushing in the eccentric sleeve 33. The movable cone main shaft passes through the eccentric bushing and is pressed on the support assembly. A bearing assembly II is provided between the eccentric bushing and the movable cone main shaft. The lower end of the eccentric bushing is provided with a gear 34 that meshes with the bevel gear on the transmission main shaft; The bearing assembly I includes a bearing I35 arranged on the end surface of the outer surface of the eccentric sleeve and a bearing II36 arranged on the lower end surface of the outer surface of the eccentric sleeve. The annular projection 321 on the end face is provided with a spacer ring 37 on the lower end face of the outer ring of the positioning bearing I and the upper end face of the outer ring of the bearing II in the central sleeve, and the connecting cylinder 7 on the upper end face of the positioning bearing I is arranged above the central sleeve. The connecting cylinder is positioned on the moving cone, the lower end surface of the inner ring of the bearing II is positioned by the gear 34, and the bearing stop ring 8 for positioning the lower end surface of the outer ring of the bearing II is fixed on the lower end surface of the eccentric sleeve by screws; the bearing assembly II includes a mounting The bearing III38 on the movable cone spindle is provided with a step 27 on the upper end surface of the inner ring of the positioning bearing III on the movable cone spindle, and a shaft sleeve 28 on the lower end surface of the inner ring of the positioning bearing III is arranged on the shaft head at the lower end of the movable cone spindle. Slip onto the connection block.

In the above embodiment, the hydraulic cylinder block is provided with a lubricating channel I611, and the piston is provided with a lubricating channel II621. The lubricating channel I communicates with the lubricating channel II. The entrance of the lubricating channel I is located at the lower end of the outer wall of the hydraulic cylinder block. The outlet of II is set on the upper end surface of the piston; there is a lubricating channel III72 in the barrel of the connecting cylinder, the inlet of the lubricating channel III is set on the outer wall of the connecting cylinder, and the outlet of the lubricating channel III is set on the inner wall of the connecting cylinder At the lower end, the lubricating channel I, the lubricating channel II, and the lubricating channel III are lubricated up and down simultaneously to ensure the sufficient lubrication of the rolling bearing. The dotted line I and the dotted line II in Fig. 5 respectively indicate the lubrication channel I, the lubrication channel II and the lubrication channel II Lubricating oil flow direction.

In addition, a counterweight 71 is provided in the connecting cylinder to increase the balance of the present invention in the working state. There is also clearance fit between the eccentric bushing and the eccentric sleeve, and bearing III fits with the taper surface of the movable cone main shaft. The outer wall of the center sleeve is horizontally provided with installation ears, and the installation ears are provided with installation holes, and the center sleeve is fixed on the frame through bolts through the installation holes, which is convenient for installation.

Except above-mentioned preferred embodiment, the present invention also has other embodiments, and those skilled in the art can make various changes and deformations according to the present invention, as long as they do not depart from the spirit of the present invention, all should belong to the scope defined in the appended claims of the present invention scope.

Claims (5)

1. gyratory crusher; Comprise frame (1) and be located at the mantle main shaft (2) in the frame; Mantle main shaft lower end is provided with eccentric stiffener (3), and eccentric stiffener and transmission component (4) are in transmission connection, and the eccentric stiffener below is provided with the bearing assembly (5) of supporting mantle main shaft; Below bearing assembly, be provided with the hydraulic lifting system (6) that changes the bearing assembly height; It is characterized in that: said hydraulic lifting system comprises that being fixed on frame lower has the hydraulic cylinder (61) of inner chamber (63) and be located at the piston (62) that moves up and down in the inner chamber, and said bearing assembly is located at the upper end of piston, and the hydraulic oil port (612) that is provided with external Hydraulic Station in the hydraulic cylinder lower end is communicated with inner chamber; Said bearing assembly comprises disk (51), middle disk (52) and lower disc (53); Last disk is fixed on the lower end spindle nose of mantle main shaft; Middle disk is located between disk and the lower disc; Lower disc is fixed on the piston upper surface, is provided with evagination sphere I (511) at the lower surface of last disk, is provided with evagination sphere II (531) at the upper surface of lower disc; Upper surface at middle disk is provided with the interior concave spherical surface I (521) that cooperates with evagination sphere I, is provided with the interior concave spherical surface II (522) that cooperates with evagination sphere II at the lower surface of middle disk.

2. a kind of gyratory crusher according to claim 1; It is characterized in that: said hydraulic cylinder is provided with lubrication channel I (611); On piston, be provided with lubrication channel II (621); Lubrication channel I and lubrication channel II are communicated with, and the inlet of lubrication channel I is located at the lateral wall lower end of hydraulic cylinder, and the outlet of lubrication channel II is located on the upper surface of piston.

3. a kind of gyratory crusher according to claim 1; It is characterized in that: said frame comprises upper spider (11) and lower bearing bracket (12); The upper end of mantle main shaft is positioned in the upper spider through bearing part; The lower end of mantle main shaft is passed eccentric stiffener and is pressed on the bearing assembly, and the mantle main shaft is provided with mantle body (21); Said transmission component comprises the transmission main shaft (41) that is located in the lower bearing bracket, and the inner of transmission main shaft is provided with bevel gear (43) and eccentric stiffener interlock, and the outer end of transmission main shaft is stretched out lower bearing bracket and is provided with the belt wheel (42) that is used for the motor interlock.

4. a kind of gyratory crusher according to claim 3; It is characterized in that: said mantle main shaft is provided with diameter and becomes big ladder section (22); Being provided with the shoulder hole (23) that cooperates with the ladder section in the mantle body is positioned at the mantle body on the mantle main shaft; On the mantle body, be provided with cone cover (24), on the mantle main shaft, also be provided with the screw-thread bush (25) that cooperates with the mantle spindle thread, screw-thread bush is pressed in cone and puts the lower end medial surface of cone cover is against on the mantle body lower outside face.

5. a kind of gyratory crusher according to claim 1 is characterized in that: said evagination sphere I is provided with radial groove I (512) and ring-shaped groove I (513), and said evagination sphere II is provided with radial groove II (532) and ring-shaped groove II (533); Be provided with contiguous block (54) between the lower end spindle nose of said upward disk and mantle main shaft; Last disk is fixed on the lower end spindle nose of mantle main shaft through contiguous block; The bottom face of the lower end spindle nose of mantle main shaft is provided with groove (26), and the upper surface of contiguous block is provided with boss I (541), and contiguous block is fixed on the lower end spindle nose of mantle main shaft through boss I and groove interference fit; The lower surface of contiguous block is provided with boss II (542); Last disk is provided with the centre bore I (514) of suit boss II, and the sidewall that passes centre bore I part on the boss II is provided with annular groove (543), is provided with the back-up ring (544) that disk is gone up in the location in the annular groove; Middle disk is provided with center hole II (523), and lower disc is provided with center hole II I (534), and the upper surface of piston is provided with the boss III (621) with center hole II I corresponding matching location, and the outlet of said lubrication channel II is located on the upper surface of boss III.

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