CN112404760A - Method for assembling lining plate of multi-cylinder cone crusher - Google Patents
Method for assembling lining plate of multi-cylinder cone crusher Download PDFInfo
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- CN112404760A CN112404760A CN202011132286.0A CN202011132286A CN112404760A CN 112404760 A CN112404760 A CN 112404760A CN 202011132286 A CN202011132286 A CN 202011132286A CN 112404760 A CN112404760 A CN 112404760A
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- Prior art keywords
- cone
- lining plate
- locking bolt
- fixed
- moving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/004—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/005—Lining
Abstract
The invention discloses a method for assembling a lining plate of a multi-cylinder cone crusher, wherein the installation of a moving cone lining plate comprises the following steps: part and tool preparation; dropping the moving cone lining plate on the moving cone; placing a cutting ring at the top of the movable cone; screwing a locking bolt onto the movable cone through the cutting ring; centering and positioning a lining plate of the movable cone on the movable cone; heating the moving cone lining plate; tightening the locking bolt; welding a cutting ring; filling epoxy resin; the installation of fixed cone welt includes: part and tool preparation; placing a fixed cone on a fixed cone lining plate to enable the fixed cone lining plate and the fixed cone to be aligned and in place; mounting a square head bolt, a spherical nut and a wedge block; screwing the spherical nut to ensure that the wedge blocks correctly prop against the fixed cone lining plate; checking whether the matching surface of the fixed cone lining plate and the fixed cone is attached tightly; filling epoxy resin; and a stop block and a nut lock are arranged to limit the rotation of the square head bolt and the spherical nut, and the like. The invention can ensure that the lining plate is installed correctly, firmly and reliably; the installation time of the lining plate of the multi-cylinder cone crusher is saved, and therefore the replacement efficiency of the lining plate of the crusher is improved.
Description
Technical Field
The invention relates to the technical field of crushers, in particular to a method for assembling a lining plate of a multi-cylinder cone crusher.
Background
The multi-cylinder cone crusher is typical crushing equipment for medium-sized and fine-sized hard materials, adopts a 'lamination crushing' principle, improves the yield of primary crushing, and is simpler and more convenient to maintain and lower in operation cost. The structure strength is improved by adopting measures of separating the movable cone from the main shaft, fixing the main shaft, only making the movable cone perform rotary and oscillating motion and the like.
A broken chamber is constituteed to multi-cylinder cone crusher movable cone welt and fixed cone welt, wherein the fixed cone welt is immovable during the breakage, the movable cone welt is driven by eccentric mechanism and is made the pendulum motion along fixed cone welt internal surface, in the place that the movable cone welt is close to the fixed cone welt, the material of broken intracavity is broken by the extrusion and the bending of movable cone welt, the place of the skew fixed cone welt of movable cone welt, broken material falls from the awl end because of action of gravity, whole breakage is gone on in proper order along the internal surface with the process of unloading in succession. In the working process, collision, extrusion and friction occur between materials of the moving cone lining plate and the fixed cone lining plate continuously, so that the moving cone lining plate and the fixed cone lining plate are quickly abraded.
The moving cone lining plate and the fixed cone lining plate need to be frequently replaced in the actual production of the multi-cylinder cone crusher, and the crusher cannot be used for production during the replacement of the lining plates, so that the time for replacing the lining plates is an important index of the multi-cylinder cone crushing production operation, the less the time required for replacing the lining plates is, the more the time for producing equipment is, the corresponding increase of the equipment output is realized, and the economic benefit generated by the equipment is increased along with the increase of the equipment output. The lining plate hoisting tool can reduce the replacement time of the lining plate of the crusher, thereby improving the economic benefit.
At present, the installation method of the lining plate of the multi-cylinder cone crusher applied to the field is various, the lining plate can be mainly divided into a large number of types, one type is that a large-scale torque wrench is adopted, and the type is mainly used in large-scale crusher manufacturing enterprises; the other type is the adoption of a force application rod, which is mostly used in crusher application sites and small crusher manufacturers. No matter a crusher manufacturer or a crusher user, the matching rate of the large torque wrench is less than 1%, so that the lining plate for multi-cylinder cone crushing is installed in 99% of the existing lining plate locking mode by using a forcing rod. However, such methods have several disadvantages: 1. a special locking bolt pre-tightening tool is not provided, so that the locking force of the lining plate is not enough, the lining plate is easy to loosen and crack in the production process, the equipment cannot run, and even the movable cone copper sleeve is damaged; 2. the lining plate pre-tightening device is used without a clear lining plate pre-tightening condition, the locking bolt is locked in order to ensure the fastening of the lining plate, and as a result, the locking bolt cannot be dismounted when the lining plate is replaced next time, and the locking bolt is required to be replaced each time the lining plate is replaced by adopting a destructive trial dismounting method; 3. the assembly clearance of the lining plate is not required, the clearance of the matching surface of the lining plate is not checked, and the matching condition and the pre-tightening state of the lining plate cannot be judged; 4. when the method is used, no fixing method, flow and special tool are provided, so that a lot of preparation time and actual installation operation time are needed; 5. the safety is poor, the locking of locking bolt needs the moment of torsion of 6000Nm above, and the scene usually needs to be strikeed with the sledgehammer and fasten locking bolt, if do not have safeguard measure easily trigger the incident.
Disclosure of Invention
The invention aims to provide a method for mounting a lining plate of a multi-cylinder cone crusher, which comprises a method for mounting a moving cone lining plate and a method for mounting a fixed cone lining plate, standardizes the method for mounting the lining plate and the mounting requirement, defines the technical parameters for mounting the lining plate and the locking condition of the lining plate, and can ensure the accuracy and the reliability of the mounting of the lining plate. The efficiency of breaker welt change can be improved, the breaker down time is reduced, the output of improvement breaker to improve the economic benefits of the bringing of breaker.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for assembling a lining plate of a multi-cylinder cone crusher comprises the following steps:
the installation of the moving cone lining plate comprises the following steps:
SA1, part and tool preparation, and early-stage treatment of the moving cone and the moving cone lining plate;
SA2, dropping the moving cone lining plate onto the moving cone;
SA3, placing a cutting ring at the top of the movable cone;
SA4, screwing a locking bolt onto the movable cone through the cutting ring;
SA5, hammering the locking bolt with a hammer to screw down so as to make the lining plate of the movable cone centered and in place on the movable cone;
SA6, checking whether the matching surfaces of the lining plate of the movable cone and the movable cone are tightly attached by using a feeler gauge, and repeating the previous step until the matching surfaces are tightly attached if the matching surfaces are not tightly attached;
SA7, heating the moving cone lining plate;
SA8, continuously screwing the locking bolt by using a locking bolt spanner;
SA9, welding the cutting ring and the moving cone lining plate between the locking bolt and the cutting ring;
SA10, filled epoxy;
the installation of the fixed cone lining plate comprises the following steps:
SB1, part and tool preparation, and pre-treatment of a fixed cone and a fixed cone lining plate;
SB2, placing the fixed cone on the fixed cone lining plate, and centering and positioning the fixed cone lining plate and the fixed cone;
SB3, mounting square head bolts, spherical nuts and wedges;
SB4, tightening the spherical nut to make the wedge block correctly push against the fixed cone lining plate;
SB5, checking whether the matching surface of the fixed cone lining plate and the fixed cone is tightly attached by using a clearance gauge, and repeating the previous step until the matching surface is tightly attached if the matching surface is not tightly attached;
SB6, filling epoxy resin;
SB7, checking to confirm that the wedge block and the spherical nut are correctly pre-tightened, and installing a stop block and a nut lock to limit the rotation of the square bolt and the spherical nut;
SB8, welding stop block, square head bolt, spherical nut and wedge block.
Specifically, in step SA1, the epoxy resin filler and the part to be filled should be placed in a room temperature environment of 16-32 ℃ before filling. The threads of the driver cone and the lockbolt are inspected to remove any burrs or nicks that may be present and to clean the threads thoroughly, and an anti-seizure agent is applied to the threads. The paint on the matching surfaces of the lining plate and the movable cone which are possibly arranged is polished off, and the outer surface of the movable cone is thinly coated with a layer of lubricating oil, so that the epoxy resin filler can be prevented from being adhered to the movable cone or the fixed cone.
Specifically, in step SA2, before the moving cone lining plate is dropped onto the moving cone, it is checked whether there is a pouring hole on the moving cone lining plate, if not, two elongated slots of 25mm × 40mm are cut at opposite positions spaced by 180 ° at the top of the moving cone lining plate to pour epoxy resin, and a circle of dry oil of 25mm width is coated on the lower edge of the moving cone surface, and then the moving cone lining plate is dropped onto the moving cone.
Specifically, in step SA4, before the locking bolt is installed, a layer of lotai LB8150 silver-based anti-seizing glue is applied to the threaded surfaces of the locking bolt and the movable cone and the mating surfaces of the locking bolt, the movable cone and the cutting ring. The clearance between the locking bolt and the cutting ring must be equal, during assembly, the moving cone lining plate must be correctly positioned and aligned with the moving cone before the locking bolt is screwed down, the moving cone lining plate cannot be corrected by screwing the locking bolt, and the clearance between the locking bolt and the cutting ring must be measured before the locking bolt is screwed down. The positioning of the lining plate of the movable cone can be corrected by knocking the top or lifting the bottom by a hand hammer, and the deviation is within 1mm or less. If the locking bolt is not replaced, it is checked whether the locking bolt is just pressing on the cutting ring. If the installation is incorrect, the thread of the locking bolt or the moving cone can be broken, and the moving cone lining plate can not be fixed on the moving cone.
Specifically, in step SA6, the fit surface clearance between the moving cone lining plate and the moving cone should be less than 0.2 mm. If the area of the movable cone is provided with a gap due to abrasion, the gap is blocked by clay, fiber or mixture, and leakage is avoided in the pouring process.
Specifically, in step SA7, a mark line is vertically drawn on the locking bolt and the cutting ring, and then heated to about 55 ℃ by heating the lower portion of the mantle plate.
Specifically, in step SA8, the locking bolt should be rotated by about 25mm by continuing to tighten the locking bolt with the locking bolt wrench, checking the marking line. The 25mm data source is based on factory experiments, which are tested by vertically drawing a mark line on the locking bolt and the cutting ring after the step SA6 is completed, and pre-tightening the locking bolt with a large torque wrench until the required torque force is reached, and measuring the displacement of the mark line on the locking bolt. Repeated experiments show that after the step SA6 is completed, the locking bolt can reach the pre-tightening requirement after rotating for 25 mm.
Specifically, in step SA9, after the locking bolt is screwed onto the movable cone, a weld is welded between the cutting ring and the movable cone lining plate in a completely opposite manner between the movable cone and the cutting ring, and the weld does not prevent the feeding disc from pressing on the locking bolt.
Specifically, in step SA10, after the moving-cone liner plate is cooled, the entire cavity below the moving-cone liner plate is filled with epoxy resin filler and poured until the cavity is slightly lower than the upper edge of the moving-cone liner plate. And pouring epoxy resin filler by using a pouring hole on the movable cone lining plate or two elongated slots of 25mm multiplied by 40mm in opposite directions at 180-degree intervals at the top of the movable cone lining plate. A chute is made of sheet iron or hard board, and epoxy resin filler is guided into the filling cavity. In order to accelerate the pouring speed, the movable cone can be poured at multiple points on the top of the movable cone. If pouring is carried out through the notch opening, the notch opening is covered by a steel plate with the thickness of 3mm after pouring is finished, and the steel plate is welded on the moving cone lining plate. This is done to prevent dust and moisture from seeping into the threads of the locking bolt and the driver cone.
Specifically, in step SB1, the paint on the matching surfaces of the fixed cone lining board and the fixed cone, which may exist, is polished off, and the fixed cone lining board is placed on a proper skid to ensure that the fixed cone is completely attached to the fixed cone lining board after being placed; and slightly coating a layer of lubricating oil on the inner side of the fixed cone to prevent the epoxy resin filler from being adhered to the fixed cone, and marking the highest point of the spiral line of the fixed cone lining plate by using chalk.
Specifically, in the step SB2, the fixed cone is placed on the fixed cone lining plate, so that the chalk mark made in the step SB1 is located at the center of the positioning block on the adapter ring; the distance between the outer diameter of the flange at the upper part of the fixed cone lining plate and the inner diameter of the fixed cone is measured at four different positions which are separated by 90 degrees, the difference value of the symmetrical points is within 2mm, the fixed cone lining plate is ensured to be positioned at the center of the fixed cone, and the fixed cone lining plate and the fixed cone mounting surface can be damaged by loosening or tilting.
Specifically, in step SB3, before installation, a layer of anti-seizure glue is applied to the threaded surfaces of the square-headed bolt and the spherical nut, and the square-headed bolt and the spherical nut are installed first, and the spherical surface of the spherical nut must be abutted against the wedge block; placing each wedge block in the middle of a positioning block at the top of the fixed cone adapter ring, and pushing the wedge block forwards until the wedge block is contacted with the fixed cone lining plate; the center of the inclined plane of each wedge block component is ensured to be smooth and have no defects, otherwise, the sliding on the spiral line of the fixed cone lining plate can be blocked; checking each contact point between the wedge block and the fixed cone lining plate to ensure that the wedge block is contacted with the fixed cone lining plate at the center of the inclined surface of the wedge block; if necessary, removing or inserting a shim plate from or under the wedge to obtain the correct contact point, the shim plate must be welded together with the adapter ring; the square-head bolt and the spherical nut are placed behind the wedge block, and the head of the square-head bolt is ensured to be positioned in the clamping groove on the fixed cone.
Specifically, in the step SB4, an opening wrench is used for alternately screwing each nut in a symmetrical mode until all wedges are pressed on the spiral line of the fixed cone lining plate; the wedge assembly must be firmly pressed and properly installed in the fixed cone.
Specifically, in step SB5, a feeler gauge is used to check along the periphery of the joint surface of the fixed cone and the fixed cone lining plate to see whether the fixed cone lining plate is tightly attached to the fixed cone, and the gap between the fixed cone lining plate and the fixed cone lining plate should not be larger than 0.02 mm. If the area of the fixed cone is porous due to abrasion, clay, joint compound or glass cement is used to fill the pores to prevent the filler from leaking when pouring.
Specifically, in step SB6, the epoxy resin filler is poured into the entire filling cavity behind the tapered liner plate to ensure that the distance between the upper surface of the epoxy resin and the lower surface of the adapter ring is between 8-10 mm.
Specifically, in step SB7, after the filler is cured, the tightening conditions of all wedges and spherical nuts should be rechecked; the nut lock is clamped on the spherical nut, and the nut lock is fastened on the wedge block by a long cotter pin; the nut lock can avoid the loosening of the fixed cone lining plate in the fixed cone caused by the loosening of the spherical nut.
Specifically, in step SB8, a long steel stopper is welded on the fixed cone, and should be just welded above the head of the square head bolt, and the stopper will prevent the square head bolt from sliding upwards when the crusher is in operation, thereby preventing the fixed cone lining plate from loosening; the glass fiber insulating material is used for sealing the square head bolt, the face seeking nut, the wedge block and other components, and the problem that dust and dirt enter to cause the future disassembly difficulty of the fixed cone lining plate is avoided.
Furthermore, in the locking bolt wrench, a through hole is formed in the center of the head of the locking bolt wrench for mounting a fastening bolt, and a plurality of connecting pins are mounted on the head of the locking bolt wrench; the locking bolt wrench is fixedly connected with the locking bolt through the fastening bolt, the connecting pins are matched with the pin holes in the locking bolt, and the connecting pins on the locking bolt wrench can drive the locking bolt to rotate along with the locking bolt wrench when the locking bolt wrench is rotated; the use is safe and reliable.
Furthermore, in the method for mounting the fixed cone lining plate, a gap must be reserved between the top end of the wedge block and the side wall of the fixed cone lining plate, if the top end of a certain wedge block is abutted against the side wall of the fixed cone lining plate due to casting errors, a base plate must be arranged below the wedge block to ensure that the inclined surface part of the wedge block is firmly contacted with the fixed cone lining plate, and if the base plate is used for adjustment, the base plate is required to be spot-welded on the fixed cone; the use of shims above 6 mm is not allowed if it is necessary to provide clearance between the top of the wedge and the fixed cone backing plate.
Compared with the prior art, the invention has the following characteristics:
1. the assembly method of the heating lining plate is adopted, so that the moving cone lining plate is easy to lock, the locking bolt is required to be screwed for 25mm after heating, and the pretightening force of the locking bolt is ensured to be in a required range. The lining plate is ensured to be installed correctly, firmly and reliably, and the stable operation of the crusher is guaranteed;
2. the heating precondition (the fit clearance of the lining plate is less than 0.2mm) and the heating temperature (55 ℃) are specified, so that the waste caused by false pre-tightening and overheating due to early heating is avoided, and the manpower, material resources and financial resources are saved;
3. when the locking bolt is not excessively pre-tightened, the threads of the locking bolt are protected by the anti-seizure glue, and the locking bolt is smoothly detached when the lining plate is replaced. The reusability of the locking bolt is ensured, the locking bolt does not need to be replaced every time the lining plate is replaced, and the disassembling time of the locking bolt and the demand of the locking bolt are saved;
4. a special tool for a locking bolt wrench is adopted to assist the locking bolt to pre-tighten. Locking bolt spanner and locking bolt fixed connection, the sledgehammer can not take place locking bolt spanner and locking bolt and throw off when strikeeing locking bolt spanner, has reduced the potential safety hazard, has improved welt installation effectiveness simultaneously.
5. The method is simple to operate, high in universality and suitable for factories and construction sites.
6. The lining plate of the crusher is ensured to be installed correctly, and the demand of locking bolt accessories is reduced; the efficiency of welt change is improved, has reduced the down time of breaker, directly improves the output of breaker, increases breaker economic benefits to bring more economic benefits for the user.
Drawings
FIG. 1 is a schematic view of the assembly of a moving cone liner plate;
FIG. 2 is a schematic view of a lock bolt assembly;
FIG. 3 is a schematic view of the use of a locking bolt wrench;
FIG. 4 is a schematic view of the fit between the lining plate and the moving cone;
FIG. 5 is a schematic view of the movable cone liner plate assembled with epoxy resin filling;
FIG. 6 is a schematic view of a locking bolt wrench;
fig. 7 is a schematic view of the assembly of the fixed cone liner plate.
FIG. 8 is a schematic view of a marking line of the fixed cone liner;
FIG. 9 is a schematic view showing the gap between the top end of the wedge and the fixed cone lining plate;
FIG. 10 is a schematic view of a sequence of tightening the spherical nut;
FIG. 11 is a schematic view of the square head bolt and the nut;
FIG. 12 is a schematic view of the fitting of the fixed cone liner plate with the fixed cone;
FIG. 13 is a schematic view of the tapered liner plate assembled with epoxy resin fill;
FIG. 14 is a schematic view of the assembled relationship between a wedge and an adaptive change positioning block;
FIG. 15 is a schematic view of the assembly relationship between the nut lock and the spherical nut;
FIG. 16 is a schematic view showing the assembling relationship between the lag bolt and the fixed cone;
fig. 17 is a schematic view of a top cutting gate of a moving cone liner plate.
In the figure: 1. the novel steel ball screw comprises a movable cone, 2 parts of a movable cone lining plate, 3 parts of a locking bolt, 4 parts of a cutting ring, 5 parts of a fastening bolt, 6 parts of a locking bolt wrench, 7 parts of epoxy resin, 8 parts of a sledgehammer, 9 parts of a connecting pin, 10 parts of a pin hole, 11 parts of a fixed cone, 12 parts of a fixed cone lining plate, 13 parts of an adapter ring, 14 parts of a square head bolt, 15 parts of a spherical nut, 16 parts of a wedge block, 17 parts of a base plate, 18 parts of a stop block, 19 parts of a nut lock, 20 parts of a split pin, 21 parts of a clearance gauge, 22 parts of a skid, 23 parts of glass fibers, 24 parts of a positioning block and 25.
Detailed Description
Referring to fig. 1 to 17, a method for assembling a lining plate of a multi-cylinder cone crusher includes: a method for installing the moving cone lining plate 2 and a method for installing the fixed cone lining plate 12. The tool and the materials related to the installation of the moving cone lining plate comprise a moving cone 1, a moving cone lining plate 2, a cutting ring 4, a locking bolt 3, a locking bolt wrench 6, epoxy resin 7, a feeler gauge, a tape measure, an electric welding machine, a 312 stainless steel welding rod and a Letai LB8150 silver-based anti-occlusion adhesive. The tools and materials related to the installation of the fixed cone lining plate comprise a fixed cone 11, a fixed cone lining plate 12, an adapter ring 13, a wedge block 16, a square-head bolt 14, a stop block 18, a spherical nut 15, a nut lock 19, a base plate 17, a split pin 20, epoxy resin 7, a clearance gauge, a measuring tape, an electric welding machine, a 506 welding rod and a le Tai LB8150 silver-based anti-occlusion adhesive.
Referring to fig. 1-7, the moving cone liner plate 2 is installed as follows:
(1) preparing parts and tools, and carrying out early-stage treatment on the movable cone 1 and the movable cone lining plate 2: the epoxy resin 7 filler and the part to be filled should be placed in a room temperature environment of 16-32 c in advance before casting. The threads of the driver cone 1 and the lockbolt 3 are inspected, any burrs or indentations that may be present are removed and the threads are thoroughly cleaned and coated with an anti-seizure agent. The paint on the matching surfaces of the movable cone lining plate 2 and the movable cone 1 which are possibly present is polished off, and a layer of lubricating oil is thinly coated on the outer surface of the movable cone 1, so that the epoxy resin 7 filler can be prevented from being adhered to the movable cone 1.
(2) Dropping the moving cone lining plate 2 on the moving cone 1: before dropping the moving cone lining plate 2 on the moving cone 1, checking whether a pouring hole is arranged on the moving cone lining plate 2, if not, cutting two elongated slots (figure 7) with the width of 25mm multiplied by 40mm at the opposite positions of 180 degrees interval on the top of the moving cone lining plate 2 to pour epoxy resin 7, coating a circle of dry oil with the width of 25mm on the lower edge of the surface of the moving cone 1, and then dropping the moving cone lining plate 2 on the moving cone.
(3) A cutting ring 4 is placed on the top of the movable cone 1.
(4) Referring to fig. 2, a locking bolt 3 is screwed to the tap bit 1 through a cutting ring 4; before the locking bolt 3 is installed, a layer of lotai LB8150 silver-based anti-biting glue needs to be brushed on the thread surfaces of the locking bolt 3 and the movable cone 1 and the matching surfaces of the locking bolt 3, the movable cone 1 and the cutting ring 4. The clearance between the locking bolt 3 and the cutting ring 4 must be equal, and during the equipment, move awl welt 2 must correctly fix a position to align with moving awl 1 before screwing up locking bolt 3, can not rely on screwing up locking bolt 3 and rectify moving awl welt 2, before screwing up locking bolt 3, the clearance a between locking bolt 3 and the cutting ring 4 must be measured. Striking the top or raising the bottom with the sledge hammer 8 corrects the positioning of the mantle liner 2, a to a1 being within 1mm or less. If the locking bolt 3 is not replaced, it is checked whether the locking bolt 3 is pressed exactly against the cutting ring 4. If the installation is incorrect, the thread of the locking bolt 3 or the moving cone 1 is broken, and the moving cone lining plate 2 cannot be fixed on the moving cone 1.
(5) Referring to fig. 1 and 3, the locking bolt wrench 6 is struck with a sledge hammer 8 to tighten the locking bolt 3 down to center and seat the moving cone liner 2 on the moving cone 1.
(6) Referring to fig. 4, the clearance b between the matching surfaces of the moving cone lining plate 2 and the moving cone 1 is not larger than 0.02mm by using the feeler 21 to check whether the matching surfaces are close to each other, and if the matching surfaces are not close to each other, the previous step is repeated until the matching surfaces are close to each other. If the area of the movable cone 1 is provided with a gap due to abrasion, the gap is blocked by clay, fiber or mixture, and leakage is avoided in the pouring process.
(7) The moving cone lining plate 2 is heated, a mark line is vertically drawn on the locking bolt 3 and the cutting ring 4, then the lower part (the part matched with the moving cone 1) of the heating lining plate 2 is heated to about 55 ℃, and at the moment, the moving cone lining plate 2 can be touched by hands, but cannot be pressed on by the hands.
(8) The tightening of the locking bolt 3 is continued with the locking bolt wrench 6, the marking line is checked and the locking bolt 3 should be turned over about 25 mm. The locking bolt wrench 6 can be struck by a sledge hammer 8 during tightening, and if a large torque wrench is available in the factory, 25000Nm of torque is required at maximum for tightening the locking bolt 3.
(9) Between the locking bolt 3 and the cutting ring 4, the cutting ring 4 and the moving cone lining plate 2 are welded, after the locking bolt 3 is screwed on the moving cone 2, between the moving cone 1 and the cutting ring 4, a welding seam (small-sized crusher) of 2 x 50mm or a welding seam (medium-sized crusher) of 4 x 50mm is welded between the cutting ring 4 and the locking bolt 3 according to a completely reverse mode, 312 stainless steel welding rods are used for welding, and the welding cannot prevent a feeding disc from pressing on the locking bolt.
(10) Referring to fig. 5 and 7, after the moving cone lining plate 2 is cooled, the epoxy resin 7 is filled, and the whole cavity below the moving cone lining plate 2 is filled with the epoxy resin 7 and is poured until the position is slightly lower than the upper edge of the moving cone lining plate 2. And pouring the epoxy resin 7 filler by using a pouring hole on the moving cone lining plate 2 or two elongated slots of 25mm multiplied by 40mm in opposite directions at 180-degree intervals at the top of the moving cone lining plate 2. A thin sheet of iron or cardboard is used as a chute to guide the epoxy resin 7 filler into the filling cavity. In order to accelerate the pouring speed, the movable cone 1 can be poured at multiple points on the top. If pouring is carried out through the slotted opening, the slotted opening is covered by a steel plate with the thickness of 3mm after pouring is finished, and the steel plate is welded on the moving cone lining plate 2. This is done to prevent dust and moisture from penetrating into the threads of the locking bolt 3 and the driver cone 1.
Referring to fig. 8-17, the installation of the fixed cone liner 12 is as follows:
(1) preparing parts and tools, and carrying out pretreatment on a fixed cone 11 and a fixed cone lining plate 12: the epoxy resin 7 filler and the part to be filled should be placed in a room temperature environment of 16-32 c in advance before casting. And (3) polishing away paint on the matching surfaces of the fixed cone lining plate 12 and the fixed cone 11 which may exist, and placing the fixed cone lining plate 12 on a proper skid 22 to ensure that the fixed cone 11 is completely attached to the fixed cone lining plate 12 after being placed. And a layer of lubricating oil is lightly coated on the inner side of the fixed cone 11 to prevent the epoxy resin 7 filler from adhering to the fixed cone 11. A mark is made with chalk on the apex of the helix of the fixed-cone backing 12 (fig. 9).
(2) Referring to fig. 10, the fixed cone 11 is placed on the fixed cone liner 12 such that the chalk mark made in step (1) is centered on the locating block 24 on the adapter ring 13. The distance f between the outer diameter of the flange at the upper part of the fixed cone lining plate 12 and the inner diameter of the fixed cone 11 is measured at four different positions which are separated by 90 degrees, the difference value of the symmetrical point f is within 2mm, the fixed cone lining plate 12 is ensured to be positioned at the center of the fixed cone 11, and the fixed cone lining plate 12 and the mounting surface of the fixed cone 11 can be damaged by loosening or tilting the fixed cone lining plate 12.
(3) Referring to fig. 10, 12, 15, 17, the lag bolt 14 and the spherical nut 15 and the wedge 16 are installed: before installation, a layer of anti-seizure glue is coated on the thread surfaces of the square-head bolt 14 and the spherical nut 15, the square-head bolt 14 and the spherical nut 15 are installed firstly, and the spherical surface of the spherical nut 15 is required to be propped against the wedge block 16. Each wedge 16 is placed in the middle of a locating block 24 on the top of the adaptor ring 13 and the wedge 16 is pushed forward until it contacts the fixed-cone backing plate 12. Ensuring that the centre of the inclined surface of each wedge 16 assembly is smooth and free of defects which would otherwise impede sliding on the helix of the fixed cone backing plate 12. Each point of contact between the wedge 16 and the fixed cone liner 12 is checked to ensure that the wedge 16 is in contact with the fixed cone liner 12 at the centre of the inclined surface of the wedge 16. If necessary, the shim plate 17 must be welded to the adapter ring 13 by removing it from under the wedge 16 or inserting the shim plate 17 under the wedge 16 to obtain the correct point of contact. The lag bolt 14 and the ball nut 15 are placed behind the wedge 16, ensuring that the head of the lag bolt 14 is located in the slot 25 on the fixed cone 11.
(4) Referring to fig. 10 and 11, the spherical nut 15 is tightened so that the wedges 16 are properly against the fixed-cone liner 12, and the nuts are alternately tightened in a symmetrical manner by a single open wrench (referring to fig. 11, the spherical nuts 15 are tightened in the order of 1, 2, 3, 4, 5, 6) until all the wedges 16 are pressed against the spiral line of the fixed-cone liner 12. The wedge 16 assembly must be firmly pressed and properly installed in the fixed cone 11.
(5) Referring to fig. 8, 10 and 13, a clearance d between the fixed cone lining plate 12 and the fixed cone lining plate 11 should not be larger than 0.02mm by using a clearance gauge to check along the periphery of the joint surface of the fixed cone lining plate 11 and the fixed cone lining plate 12 to see whether the fixed cone lining plate 12 is tightly attached to the fixed cone 11. If the portion of the fixed cone 11 has voids due to abrasion, the voids are filled with clay, joint compound or glass cement to prevent the filler from leaking when poured.
(6) Referring to fig. 14, epoxy 7 is filled and the epoxy 7 fill poured into the entire fill cavity behind the tapered liner 12 ensures that the distance e between the upper surface of the epoxy 7 and the lower surface of the adaptor ring 13 is between 8-10 mm.
(7) Referring to fig. 14, 16, after the filler is cured, all wedges 16 and spherical nuts 15 should be rechecked for tightness. The nut lock 19 is snapped onto the ball nut 15 and the nut lock 19 is secured to the wedge 16 by a long cotter pin 20. The nut lock 19 can prevent the fixed cone lining plate 12 in the fixed cone 11 from loosening caused by the loosening of the spherical nut 15.
(8) Referring to fig. 8 and 17, a long steel block 18 of 12mm x 40mm is welded on the fixed cone 11, and should be welded right above the head of the square head bolt 14, and the block 18 will prevent the square head bolt 14 from sliding upwards during the operation of the crusher, so as to prevent the fixed cone lining plate 12 from loosening. The glass fiber 23 insulating material is used for sealing the square head bolt 14, the face nut 15, the wedge block 16 and other components, so that the fixed cone lining plate 12 is prevented from being difficult to disassemble in the future due to the fact that dust and dirt enter.
The epoxy resin 7 filler is a tough and elastic non-metal filler. It is prepared into various specifications of matching finished products, and each box is provided with a large bucket, a small bucket and two buckets of epoxy resin 7 filler and a mixing stirring rod. The use of epoxy resin 7 filler does not require special equipment for preparation and handling. The epoxy resin 7 filler cannot be reused, but is a consumable used along with the wear of the moving cone lining plate 2 and the fixed cone lining plate 12. The use of the epoxy resin 7 filler does not require special training in mixing and filling, and the mixing of the filler can be done at the job site, with instructions in each set of finished products. The epoxy 7 filler, once mixed, must be filled immediately and cannot be delayed. It may also be necessary to subsequently mix the filler until the void is completely filled. The pouring can be done at any convenient time.
Wherein, the temperature of the epoxy resin 7 is lower than-10 ℃, the filler of the epoxy resin 7 can be cured slowly and is difficult to be reliably injected into a small gap due to being too viscous, and the epoxy resin 7 is soaked in warm water before being unsealed; temperatures above 38 ℃ will risk solidifying in the barrel before pouring and soaking in cold water before unsealing. Epoxy resin 7 filler cannot be used when epoxy resin 7 is poured at 16-32 ℃ and the feeding temperature of the crusher exceeds 75 ℃. The unopened epoxy 7 filling can be stored almost safely indefinitely.
Wherein, locking bolt spanner 6, 6 head centers of locking bolt spanner set up the through-hole and be used for installing fastening bolt 5, a plurality of connecting pins 9 of 6 head installations of locking bolt spanner, connecting pin 9 is preferably detachable, during the use, through fastening bolt 5 and locking bolt 3 fixed connection, a plurality of connecting pins 9 cooperate with a plurality of pinhole 10 on the locking bolt 3, a plurality of connecting pins 9 on the locking bolt spanner 6 can drive locking bolt 3 and follow locking bolt spanner 6 and rotate together when rotating locking bolt spanner 6. The use is safe and reliable.
When the fixed cone lining plate 12 is installed, a gap (c >0) must be formed between the top end of the wedge 16 and the side wall of the fixed cone lining plate 12, if the top end of a certain wedge 16 is abutted against the side wall of the fixed cone lining plate 12 due to casting errors, a backing plate 17 must be placed under the wedge to firmly contact the inclined surface part of the wedge 16 with the fixed cone lining plate 12, and if the backing plate 17 is used for adjustment, the backing plate 17 should be spot-welded to the fixed cone 11. This is not allowed if the use of a shim plate 17 of more than 6 mm is required to provide clearance between the top of the wedge 16 and the tapered liner 12.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for installing a lining plate of a multi-cylinder cone crusher is characterized by comprising the steps of installing a moving cone lining plate and installing a fixed cone lining plate;
the installation of the moving cone lining plate comprises the following steps:
SA1, part and tool preparation, and early-stage treatment of the moving cone and the moving cone lining plate;
SA2, dropping the moving cone lining plate onto the moving cone;
SA3, placing a cutting ring at the top of the movable cone;
SA4, screwing a locking bolt onto the movable cone through the cutting ring;
SA5, hammering the locking bolt with a hammer to screw down so as to make the lining plate of the movable cone centered and in place on the movable cone;
SA6, checking whether the matching surfaces of the lining plate of the movable cone and the movable cone are tightly attached by using a feeler gauge, and repeating the previous step until the matching surfaces are tightly attached if the matching surfaces are not tightly attached;
SA7, heating the moving cone lining plate;
SA8, continuously screwing the locking bolt by using a locking bolt spanner;
SA9, welding the cutting ring and the moving cone lining plate between the locking bolt and the cutting ring;
SA10, filled epoxy;
the installation of the fixed cone lining plate comprises the following steps:
SB1, part and tool preparation, and pre-treatment of a fixed cone and a fixed cone lining plate;
SB2, placing the fixed cone on the fixed cone lining plate, and centering and positioning the fixed cone lining plate and the fixed cone;
SB3, mounting square head bolts, spherical nuts and wedges;
SB4, tightening the spherical nut to make the wedge block correctly push against the fixed cone lining plate;
SB5, checking whether the matching surface of the fixed cone lining plate and the fixed cone is tightly attached by using a clearance gauge, and repeating the previous step until the matching surface is tightly attached if the matching surface is not tightly attached;
SB6, filling epoxy resin;
SB7, checking to confirm that the wedge block and the spherical nut are correctly pre-tightened, and installing a stop block and a nut lock to limit the rotation of the square bolt and the spherical nut;
SB8, welding stop block, square head bolt, spherical nut and wedge block.
2. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in step SA2, before dropping the moving cone lining plate onto the moving cone, checking whether there is a pouring hole on the moving cone lining plate, if not, cutting two elongated slots 25mm × 40mm at opposite positions 180 ° apart at the top of the moving cone lining plate to pour epoxy resin, and coating a circle of dry oil 25mm wide on the lower edge of the moving cone surface, and then dropping the moving cone lining plate onto the moving cone.
3. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SA4, before the locking bolt is installed, a layer of Loctite LB8150 silver-based anti-occlusion glue is required to be brushed on the thread surfaces of the locking bolt and the movable cone and the matching surfaces of the locking bolt, the movable cone and the cutting ring; the clearance between the locking bolt and the cutting ring must be equal, during assembly, the moving cone lining plate must be correctly positioned and aligned with the moving cone before the locking bolt is screwed, the moving cone lining plate cannot be corrected by screwing the locking bolt, and the clearance between the locking bolt and the cutting ring must be measured before the locking bolt is screwed; the positioning of the lining plate of the movable cone can be corrected by knocking the top or lifting the bottom by a hand hammer, and the deviation is within 1mm or less; if the locking bolt is not replaced, checking whether the locking bolt is just pressed on the cutting ring; if the installation is incorrect, the thread of the locking bolt or the moving cone can be broken, and the moving cone lining plate can not be fixed on the moving cone.
4. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SA7, vertically drawing a mark line on the locking bolt and the cutting ring, and heating the lower part of the moving cone lining plate to 55 ℃; in step SA8, the locking bolt is tightened further with a locking bolt wrench, the marking line is checked, and the locking bolt should be rotated by 25 mm.
5. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SA8, a through hole is formed in the center of the head of the locking bolt wrench for mounting a fastening bolt, and a plurality of connecting pins are mounted on the head of the locking bolt wrench; through fastening bolt and locking bolt fixed connection, a plurality of connecting pins and the cooperation of a plurality of pinholes on the locking bolt, a plurality of connecting pins on the locking bolt spanner can drive locking bolt and follow locking bolt spanner and rotate together when rotating locking bolt spanner.
6. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SA9, welding is carried out between a locking bolt and a cutting ring and between the cutting ring and a moving cone lining plate, after the locking bolt is screwed on a moving cone, welding seams are welded between the moving cone and the cutting ring and between the cutting ring and the locking bolt in a completely opposite mode, and the welding cannot prevent a feeding disc from pressing on the locking bolt; in the step SA10, after the moving cone lining plate is cooled, filling the whole cavity below the moving cone lining plate with epoxy resin filler, and pouring until the cavity is slightly lower than the upper edge of the moving cone lining plate; pouring epoxy resin filler by using a pouring hole on the movable cone lining plate or two elongated slots of 25mm multiplied by 40mm in opposite directions at 180-degree intervals at the top of the movable cone lining plate; using sheet iron or hardboard as a chute to guide the epoxy resin filler into the filling cavity; in order to accelerate the pouring speed, the movable cone can be poured at multiple points on the top; if pouring is carried out through the notch opening, the notch opening is covered by a steel plate with the thickness of 3mm after pouring is finished, and the steel plate is welded on the moving cone lining plate.
7. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SB1, polishing off paint on the matching surface of the fixed cone lining plate and the fixed cone, and placing the fixed cone lining plate on a proper skid to ensure that the fixed cone is completely attached to the fixed cone lining plate after being placed; and slightly coating a layer of lubricating oil on the inner side of the fixed cone to prevent the epoxy resin filler from being adhered to the fixed cone, and marking the highest point of the spiral line of the fixed cone lining plate by using chalk.
8. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SB2, a fixed cone is placed on the fixed cone lining plate, so that the chalk mark made in the step SB1 is positioned at the center of the positioning block on the adapter ring; the distance between the outer diameter of the flange at the upper part of the fixed cone lining plate and the inner diameter of the fixed cone is measured at four different positions which are separated by 90 degrees, the difference value of the symmetrical points is within 2mm, the fixed cone lining plate is ensured to be positioned at the center of the fixed cone, and the fixed cone lining plate and the fixed cone mounting surface can be damaged by loosening or tilting.
9. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in the step SB3, before installation, a layer of anti-occlusion glue is coated on the thread surfaces of the square-head bolt and the spherical nut, the square-head bolt and the spherical nut are installed firstly, and the spherical surface of the spherical nut is required to be propped against the wedge block; placing each wedge block in the middle of a positioning block at the top of the fixed cone adapter ring, and pushing the wedge block forwards until the wedge block is contacted with the fixed cone lining plate; the center of the inclined plane of each wedge block component is ensured to be smooth and have no defects, otherwise, the sliding on the spiral line of the fixed cone lining plate can be blocked; checking each contact point between the wedge block and the fixed cone lining plate to ensure that the wedge block is contacted with the fixed cone lining plate at the center of the inclined surface of the wedge block; if necessary, removing or inserting a shim plate from or under the wedge to obtain the correct contact point, the shim plate must be welded together with the adapter ring; the square-head bolt and the spherical nut are placed behind the wedge block, and the head of the square-head bolt is ensured to be positioned in the clamping groove on the fixed cone.
10. The method for mounting a lining plate of a multi-cylinder cone crusher according to claim 1, characterized in that: in step SB8, a long steel stopper is welded on the fixed cone just above the head of the square head bolt, and this stopper will prevent the square head bolt from sliding upwards during the operation of the crusher, thereby preventing the fixed cone lining plate from loosening.
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| CN202011132286.0A CN112404760B (en) | 2020-10-21 | 2020-10-21 | Method for assembling lining plate of multi-cylinder cone crusher |
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| CN202011132286.0A CN112404760B (en) | 2020-10-21 | 2020-10-21 | Method for assembling lining plate of multi-cylinder cone crusher |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953804A (en) * | 2021-10-18 | 2022-01-21 | 南昌矿机集团股份有限公司 | Movable cone assembling device and method of hydraulic cone crusher |
| EP4245418A1 (en) * | 2022-03-14 | 2023-09-20 | Sandvik SRP AB | Retaining mechanism and tool for mounting and dismounting a crusher |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3920956A1 (en) * | 1989-04-21 | 1990-10-25 | Hans Joachim Giebel | Wearing plate with cylindrical hole bore - has threaded bolt going through and bearing in form of ring or weld steam |
| CN202778649U (en) * | 2012-07-30 | 2013-03-13 | 河北二十冶工程技术有限公司 | Leveling device for installation of lining plate of crusher spindle |
| RU151572U1 (en) * | 2014-11-06 | 2015-04-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Сибирская государственная автомобильно-дорожная академия (СибАДИ)" | CONE CRUSHER |
| CN204564211U (en) * | 2015-04-15 | 2015-08-19 | 攀钢集团工程技术有限公司 | Moving cone of cone crusher structure |
| CN208373165U (en) * | 2018-04-25 | 2019-01-15 | 北方重工富勒（沈阳）矿业有限公司 | A kind of fixed cone of cone crusher liner plate locking device |
| CN110801885A (en) * | 2019-11-12 | 2020-02-18 | 南昌矿山机械有限公司 | Multi-cylinder hydraulic cone crusher |
| CN111215604A (en) * | 2019-11-13 | 2020-06-02 | 太原钢铁(集团)有限公司 | Method for preventing moving cone lining plate of crusher from loosening |
-
2020
- 2020-10-21 CN CN202011132286.0A patent/CN112404760B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3920956A1 (en) * | 1989-04-21 | 1990-10-25 | Hans Joachim Giebel | Wearing plate with cylindrical hole bore - has threaded bolt going through and bearing in form of ring or weld steam |
| CN202778649U (en) * | 2012-07-30 | 2013-03-13 | 河北二十冶工程技术有限公司 | Leveling device for installation of lining plate of crusher spindle |
| RU151572U1 (en) * | 2014-11-06 | 2015-04-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Сибирская государственная автомобильно-дорожная академия (СибАДИ)" | CONE CRUSHER |
| CN204564211U (en) * | 2015-04-15 | 2015-08-19 | 攀钢集团工程技术有限公司 | Moving cone of cone crusher structure |
| CN208373165U (en) * | 2018-04-25 | 2019-01-15 | 北方重工富勒（沈阳）矿业有限公司 | A kind of fixed cone of cone crusher liner plate locking device |
| CN110801885A (en) * | 2019-11-12 | 2020-02-18 | 南昌矿山机械有限公司 | Multi-cylinder hydraulic cone crusher |
| CN111215604A (en) * | 2019-11-13 | 2020-06-02 | 太原钢铁(集团)有限公司 | Method for preventing moving cone lining plate of crusher from loosening |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953804A (en) * | 2021-10-18 | 2022-01-21 | 南昌矿机集团股份有限公司 | Movable cone assembling device and method of hydraulic cone crusher |
| CN113953804B (en) * | 2021-10-18 | 2022-09-27 | 南昌矿机集团股份有限公司 | Movable cone assembling device and method of hydraulic cone crusher |
| EP4245418A1 (en) * | 2022-03-14 | 2023-09-20 | Sandvik SRP AB | Retaining mechanism and tool for mounting and dismounting a crusher |
| WO2023174950A1 (en) * | 2022-03-14 | 2023-09-21 | Sandvik Srp Ab | Retaining mechanism and tool for mounting and dismounting a crusher |
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