CN114588963B - A heavy-duty multi-cylinder cone crusher and method - Google Patents

Abstract

The invention discloses a heavy multi-cylinder cone crusher and a method thereof, wherein the crusher comprises a frame assembly, a movable cone assembly, a fixed cone assembly and an eccentric assembly, wherein the fixed cone assembly is located on the frame assembly, an anti-rotation device is arranged in the movable cone assembly and is arranged in the frame assembly by matching with a main shaft through the anti-rotation device, the movable cone assembly is matched with the fixed cone assembly to form a crushing cavity, and the eccentric assembly drives the movable cone assembly to do circumferential oscillation. The invention integrally adopts a heavy structural design, a large crushing force design, a dynamic cone self-transmission prevention design, an eccentric structure and a thrust bearing structure are optimized, and the intelligent upgrading is realized. Compared with the traditional multi-cylinder cone crusher, the capacity is improved by 80% under the same motor power, the energy consumption of the crusher is greatly reduced, and the cost and efficiency of a boosted mine enterprise are reduced.

Description

A heavy-duty multi-cylinder cone crusher and method

Technical field

The invention belongs to the field of mining equipment, and specifically relates to a heavy-duty multi-cylinder cone crusher and a method.

Background technique

Multi-cylinder cone crusher is a typical crushing equipment for medium and fine crushing of hard materials. It adopts the "laminated crushing" principle to improve the yield of primary crushing, easier and more convenient maintenance and lower operating costs. The structural strength is improved by taking measures such as separating the movable cone from the main shaft, fixing the main shaft, and only the movable cone performs a swing movement.

In the 1850s, with the development of hydraulic technology, the cone crusher could use hydraulic pressure to adjust the discharge port and achieve overload protection. This is the hydraulic cone crusher. It has a very wide range of applications in many industries with its unique performance advantages. . With the continuous development and improvement of hydraulic cone crushers, it has reached the level of serialization, standardization and standardization. High-performance cone crusher has superior performance and can meet the process requirements of "more crushing and less grinding". Under the guidance of the reform and opening up policy, my country's infrastructure construction has developed rapidly, which has made the crusher market very hot. In recent years, domestic users have introduced various advanced cone crushers from abroad, among which the GP series, HP series, H1800 and S1800 series hydraulic cone crushers are the most popular. On this basis, we strive to create advanced domestic hydraulic cone crushers with their main performance It is close to foreign advanced cone crushers and has been improved.

Due to its special structure, multi-cylinder cone crusher has small size, large installed power, high speed, high working efficiency, laminated crushing and high finished product quality. It also has a relatively simple structure, exquisite appearance design, low manufacturing cost, few parts and easy automatic control.

With the increasing application of multi-cylinder cone crushers, the crushers are constantly exposed to some problems. At present, the multi-cylinder cone and fixed cone structure of the multi-cylinder cone crusher has the following disadvantages: 1. High energy consumption; 2. Small crushing force; 3. The distribution plate wears quickly; 4. The structural strength is low, the frame is cracked, and the adjustment ring Broken, adjusting ring, locking ring, and fixed cone threads are seriously worn; 5. The oil return speed is slow, oil accumulates inside the frame, and the lubricating oil is thrown out by the counterweight; 6. The rotating cone rotates, which may easily cause the failure of the copper sleeve inside the moving cone. .

Contents of the invention

The purpose of the present invention is to provide a heavy-duty multi-cylinder cone crusher and method, which adopts heavy-duty structural design, large crushing force design, dynamic cone anti-self-rotation design, optimized eccentric structure and thrust bearing structure, and intelligent upgrade. Compared with traditional multi-cylinder cone crushers, the production capacity is increased by 80% under the same motor power, which greatly reduces the energy consumption of the crusher and helps mining companies reduce costs and increase efficiency.

In order to achieve the above object, the technical solution adopted by the present invention is: a heavy-duty multi-cylinder cone crusher, including a frame assembly, a moving cone assembly, a fixed cone assembly and an eccentric assembly. The fixed cone assembly is located on the frame. On the assembly, the moving cone assembly is equipped with an anti-rotation device, and is installed in the frame assembly in conjunction with the main shaft through the anti-rotation device. The moving cone assembly cooperates with the fixed cone assembly to form a crushing cavity, and the eccentric assembly drives the moving cone assembly. Make a circular swing.

Furthermore, it also includes a thrust bearing, which is supported between the eccentric assembly and the frame assembly. The thrust bearing includes an upper thrust bearing and a lower thrust bearing. A plurality of lubricating oil grooves are evenly opened on the matching surfaces of the upper thrust bearing and the lower thrust bearing, and the two ends of the lubricating oil grooves penetrate the inner and outer surfaces of the upper thrust bearing.

Furthermore, the upper thrust bearing is evenly provided with a number of through-mounting holes.

Furthermore, the lubricating oil groove includes two connected inclined surfaces, the two inclined surfaces are respectively a first inclined surface and a second inclined surface, the first inclined surface is a gentle slope surface, and the second inclined surface is a steep slope surface.

Further, the inclination angle of the gentle slope surface is the first included angle α, the inclination angle of the steep slope surface is the second included angle β, the first included angle α is greater than 60°, the second included angle β is less than 30°, and the depth h of the lubricating oil groove is set to 1/3 to 1/2 of the thickness H of the upper thrust bearing.

Further, the mounting hole is provided at the bottom of the lubricating oil groove.

Further, the lower thrust bearing is provided with a measuring chamber for accommodating lubricating oil. The top of the measuring chamber is provided with an opening for lubricating oil to enter, and a sensor installation hole for installing a temperature sensor is provided at the bottom of the measuring chamber. The sensor is installed The hole is connected to the measuring greenhouse, and a wire trough is provided on the outer surface of the lower thrust bearing on the back of the measuring greenhouse, and the wire trough is connected to the sensor installation hole.

Further, the measuring chamber is hole-shaped, and its opening faces the mating surface of the lower thrust bearing and the upper thrust bearing.

Furthermore, the measuring greenhouses are divided into two groups, with two in each group, and the two groups of measuring greenhouses are arranged at 180°.

Furthermore, the wire groove is provided on the opposite surface of the matching surface of the lower thrust bearing and the upper thrust bearing.

Further, the cross-section of the groove is designed to be rectangular, semi-circular, or U-shaped, preferably U-shaped cross-section. The two ends of the groove are connected to the inner circular outer wall and the outer circular outer wall of the lower thrust bearing.

Furthermore, a plurality of screw holes are provided on the outer circumferential wall of the lower thrust bearing, preferably 5 or 7 screw holes.

Further, the anti-rotation device includes a moving cone sphere, a spherical tile, a spherical tile frame and a main shaft. The spherical tile frame is fixed on the main shaft, the spherical tile is fixed in the spherical tile frame, the moving cone sphere is fixed in the moving cone, and the moving cone sphere sits on the main shaft. On the spherical tile, and freely sliding on the spherical surface of the spherical tile, a universal joint is provided between the moving cone and the main shaft. The two ends of the universal joint are respectively connected to the top of the moving cone and the spherical tile frame, and the top of the moving cone and the universal joint. The ends fit together to form a sliding pair.

Furthermore, one end of the universal joint is a spline shaft, and a spline sleeve is installed on the upper part of the moving cone. The spline shaft and the spline sleeve are connected by splines, and the spline shaft and the spline sleeve can slide relative to each other.

Further, the top of the moving cone is covered with an upper connecting plate through bolts, and the spline sleeve is detachably installed on the upper connecting plate through bolts.

Furthermore, a coupling is installed on the spherical bearing frame through the lower connecting plate, and the lower part of the universal joint is connected to the coupling through bolts.

Furthermore, a locking material distribution device is also provided on the top of the moving cone assembly. The locking material distribution device includes a locking nut and a material distribution plate. The material distribution plate is located on the lock nut and is fixed by a connecting bolt group. The material distribution plate The top is recessed inward to provide a material storage cavity, and a lifting lug is provided in the storage cavity. The top of the lifting lug is lower than the top surface of the storage cavity.

Furthermore, the outer diameters of the outer circles of the material distribution plate and the locking nut are consistent.

Furthermore, a countersunk hole is provided on the inner wall of the storage chamber, and the side of the locking nut is recessed inward to form a groove for operating the connecting bolt group. A circular hole obliquely facing upward is provided in the groove and passes directly through the upper end face of the locking nut. One end of the connecting bolt group is arranged in the countersunk hole, and the other end passes through the circular hole and is arranged in the groove.

Further, a positioning seat is provided at the bottom of the material distribution plate, and the outer diameter of the outer circle of the positioning seat is smaller than the inner diameter of the inner circle of the locking nut.

Further, the moving cone lining plate is installed on the moving cone, and a welding ring is installed on the moving cone lining plate. The locking nut is provided with an internal thread to connect with the moving cone thread, and the moving cone lining plate is locked on the moving cone through the welding ring. , weld the welding ring to the moving cone lining plate and locking nut respectively.

Further, the frame assembly includes a plurality of clear-cavity oil cylinders and a frame main body. The clear-cavity oil cylinders have the function of lifting the fixed cone assembly under the action of the hydraulic system; the frame assembly is provided with a The inner rib is provided with an oil return chamber on one side for the horizontal shaft assembly and the eccentric assembly transmission meshing transmission. The inner rib adopts a U-shaped structure, and an oil return port is provided at the bottom of the oil return chamber. The maximum diameter of the bottom of the rack is 3900mm.

Furthermore, the eccentric assembly includes an eccentric sleeve and a counterweight, the counterweight is installed on the eccentric sleeve, the eccentric sleeve includes a first rotating axis, i.e., the central axis of the inner hole of the eccentric sleeve, a second rotating axis, i.e., the central axis of the upper outer circle of the eccentric sleeve, an eccentric angle, i.e., the angle α between the first rotating axis and the second rotating axis, and an eccentric distance, i.e., the distance e between the first rotating axis and the second rotating axis on the top surface of the eccentric sleeve; the eccentric angle α is set in the range of 1°30′-2°, and the eccentric distance is set in the range of 35-38mm.

Further, it also includes an adjusting ring assembly. The adjusting ring assembly includes an adjusting ring, a locking ring, a locking cylinder and a hydraulic motor. The adjusting ring sits on the frame assembly. The adjusting ring is provided with internal threads and is connected with the fixed frame. Cone external thread connection; the locking ring is set on the adjustment ring. The locking ring is equipped with internal threads and is connected with the fixed cone external thread. The locking cylinder is installed on the locking ring, and the movable end of the locking cylinder is located on the adjustment ring. , the hydraulic motor is set on the adjustment ring and drives the fixed cone assembly to rotate. There are 18 locking cylinders and 3 hydraulic motors. The outer diameter D of the adjustment ring is greater than 3500mm. It adopts a heavy-duty design of an overall annular structure. The minimum wall thickness at the internal thread is more than 200mm. The weight of a single adjustment ring is more than 10000kg. The outer diameter D of the locking ring is greater than 2800mm, and it adopts a heavy-duty design with an overall annular structure. The minimum wall thickness at the internal thread is 250mm, and a minimum of 3 turns of full-thread threads are designed. There is a valve core in the locking cylinder, and the lower part of the cylinder adopts a flange design. There is a threaded pressure plate on the top of the locking cylinder. The pressure plate is positioned with the locking ring pin. All locking cylinders adopt the top oil inlet method. , 18 locking cylinders are connected in series pipelines.

A method for controlling the temperature of a lower thrust bearing of a multi-cylinder cone crusher, including four measuring greenhouses set on the lower thrust bearing and a sensor installation hole arranged at the bottom of the measuring greenhouse. The sensor installation hole is connected to the measuring greenhouse, and the measuring greenhouse There is an opening for lubricating oil to enter, a temperature sensor is installed in the sensor installation hole, and the lubricating oil is stored in the measuring chamber; set the temperature parameters t1, t2, t3 and t4 set by the system, where t1<t2<t3< t4; According to the oil temperature in each measuring chamber measured by the four temperature sensors, the measured values of the four temperature sensors are T1, T2, T3 and T4 respectively; calculate the average temperature T of the lower thrust bearing monitored by the four temperature sensors; When T<t1, it is prohibited to start the crusher; when T<t2, feeding is prohibited; when T>t3, feeding is stopped; when T>t4, the crusher is stopped; when T1, T2, T3 and T4 are any If the deviation between the two exceeds Δt, the system issues an alarm signal of "abnormal temperature of the lower thrust bearing sensor".

Compared with the existing technology, the present invention has the following beneficial effects: 1. High energy efficiency, 80% higher production capacity than similar crushers with the same power; 2. The eccentric angle of the eccentric sleeve is optimized, and a heavy counterweight is used, which has a large crushing force and can Crushing hard materials improves the strength of the crusher and ensures the stability and reliability of the crusher; 3. A material lining can be formed on the top of the distributing disc grinding machine, which results in less wear and long life of the distributing disc; 4. Heavy-duty design, overall strength High, the weight is twice that of similar crushers; 5. The oil return port is at the bottom, the oil returns quickly, and there is no oil accumulation; 6. The moving cone has no rotational movement, and the moving cone only swings in a circle when the crusher is running, and does not rotate. Movement makes the copper sleeve on the movable cone roll on the spherical tile frame when the crusher is running without load. There is no sliding friction, small load and less heat. The copper sleeve on the movable cone will not be burned even if it is run without load for a long time. And since there is no rotational motion in the moving cone, intermittent feeding will not affect the motion state of the moving cone, and there is no reciprocating motion, which reduces the failure rate of the copper sleeve under the moving cone and is more efficient and reliable. 7. The thrust bearing has good heat dissipation effect, is more suitable for high strength, large crushing force, and has a large slope angle. The deep oil groove is not easy to wear, and slight wear will not cause lubrication failure; and the lubricating oil groove allows a large amount of wear, and the upper thrust bearing has a long life, which increases The operating cost of the crusher increases the startup time of the crusher. 7. The temperature of the thrust bearing can be monitored. By measuring the temperature of the greenhouse oil, it can indirectly reflect the temperature of the lower thrust bearing and predict the working status of the lower thrust bearing, thereby better monitoring the operating status of the crusher and reducing the failure of the crusher. Predicted downtime.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a top view of the frame of the present invention;

Figure 3 is a cross-sectional view of part A-A in Figure 2;

Figure 4 is a cross-sectional view of part B-B in Figure 3;

Figure 5 is a cross-sectional view of part C-C in Figure 3;

Fig. 6 is a cross-sectional view of the D-D portion in Fig. 3;

Figure 7 is a cross-sectional view of part E-E in Figure 3;

Figure 8 is a cross-sectional view of part G-G in Figure 2;

Figure 9 is a schematic diagram of the anti-rotation device of the moving cone of the present invention;

Figure 10 is a schematic structural diagram of the locking and distributing device of the present invention;

Figure 11 is a top view of the eccentric tack of the present invention;

Figure 12 is a schematic cross-sectional view of the eccentric sleeve A-A of the present invention;

Figure 13 is a schematic structural diagram of the upper thrust bearing of the present invention;

Figure 14 is a top view of the upper thrust bearing of the present invention.

Figure 15 is a cross-sectional view of part A-A in Figure 14;

Figure 16 is a cross-sectional view of part B-B in Figure 14;

Figure 17 is a schematic structural diagram of the lower thrust bearing of the present invention;

Figure 18 is a top view of the lower thrust bearing of the present invention;

Figure 19 is a cross-sectional view of part A-A in Figure 18.

Figure 20 is a cross-sectional view of part B-B in Figure 18;

Fig. 21 is a cross-sectional view of the C-C portion in Fig. 20;

Figure 22 is a top view of the adjusting ring assembly of the present invention;

FIG23 is a top view of the adjusting ring assembly of the present invention without the hydraulic motor;

Figure 24 is a cross-sectional view of part A-A in Figure 23;

Figure 25 is an enlarged schematic diagram of part B in Figure 24;

Figure 26 is a schematic cross-sectional view of the locking cylinder of the adjusting ring assembly of the present invention;

In the picture: 1. Frame assembly, 2. Moving cone assembly, 3. Locking and distributing device, 4. Eccentric sleeve, 5. Upper thrust bearing, 6. Lower thrust bearing, 7. Adjustment ring assembly, 8 .Fixed cone assembly;

101. Internal ribs, 102. Oil return chamber, 103. Oil return port;

201. Moving cone, 202. Lower connecting plate, 203. Coupling, 204. Universal joint, 205. Spline sleeve, 206. Upper connecting plate, 207. Spherical tile, 208. Spindle, 209. Spherical tile frame, 2010. Moving cone sphere;

302. Moving cone lining plate, 303. Locking nut, 304. Material distribution plate, 305. Welding ring, 306. Connecting bolt group, 307. Storage chamber, 308. Lifting lugs, 309. Countersunk hole, 3010. Concave Slot, 3011. round hole;

401. eccentric angle, 402. eccentric distance, 403. first rotation axis, 404. second rotation axis;

501. Lubricating oil groove, 502. Mounting hole, 5001. First inclined surface, 5002. Second inclined surface, 5003. First angle, 5004. Second angle, 5005. Depth h, 5006. Thickness H;

601. Measuring greenhouse, 602. Sensor mounting hole, 603. Wire trough, 604. Screw hole;

701. Adjusting ring, 702. Locking ring, 703. Locking cylinder, 704. Hydraulic motor, 705. Cylinder block, 706. Valve core, 707. Flange, 708. Pressure plate, 709. Pin.

Detailed ways

Referring to Figure 1, a heavy-duty multi-cylinder cone crusher includes a frame assembly 1, a moving cone assembly 2, a fixed cone assembly 8 and an eccentric assembly. The fixed cone assembly 8 is located on the frame assembly 1. An anti-rotation device is provided in the movable cone assembly 2, and is installed in the frame assembly 1 in conjunction with the spindle 208 through the anti-rotation device. The movable cone assembly 2 cooperates with the fixed cone assembly 8 to form a crushing cavity, and the eccentric assembly drives the movable cone. Assembly 2 makes a circular swing;

Referring to Figures 13 to 16, a thrust bearing is also included. The thrust bearing is supported between the eccentric assembly and the frame assembly 1. The thrust bearing includes an upper thrust bearing 5 and a lower thrust bearing 6. Between the upper thrust bearing 5 and the frame assembly 1 A number of lubricating oil grooves 501 are evenly provided on the mating surface of the lower thrust bearing 6, and both ends of the lubricating oil grooves 501 penetrate the inner and outer surfaces of the upper thrust bearing 5; the upper thrust bearing 5 is evenly provided with a number of through-mounting mounting holes 502. The upper thrust bearing 5 is installed on the eccentric assembly through the mounting hole 502, and rotates together with the eccentric assembly, so that the lubricating oil flows very smoothly, thereby achieving a good heat dissipation effect. Moreover, as the upper thrust bearing 5 rotates, due to the effects of gravity and rotation, the lubricating oil in the oil groove is more easily spread evenly along its gentle slope to form an oil film between the upper thrust bearing 5 and the lower thrust bearing 6 . And the installation with the eccentric assembly can be completed through the mounting hole 502 provided at the bottom of the lubricating oil tank 501, without the need for extra parts.

Among them, the lubricating oil groove 501 includes two connected inclined surfaces, the two inclined surfaces are a first inclined surface 5001 and a second inclined surface 5002 respectively. The first inclined surface 5001 is a gentle slope, and the second inclined surface 5002 is a steep slope; the inclination angle of the gentle slope is An included angle 5003α, the inclination angle of the steep slope is a second included angle 5004β, the first included angle 5003α is greater than 60°, the second included angle 5004β is less than 30°, the depth h5005 of the lubricating oil groove 501 is set to 1 of the thickness H5006 of the upper thrust bearing 5 /3 to 1/2. The inclination angle of the two slopes of the lubricating oil groove 5011 is increased, and the bottom is deepened. Slight wear will not cause lubrication failure. The lubricating oil groove 5011 allows a large amount of wear, and the upper thrust bearing 5 has a long life, which increases the operating cost of the crusher and increases the startup time of the crusher. The first included angle 5003α may be set to 75° to 80°, and the second included angle 5004β may be set to 10° to 20°.

The mounting hole 502 is provided at the bottom of the lubricating oil groove 501 . The mounting hole 502 is provided at the bottom of the lubricating oil groove 501, which can also protect the oil film and prevent the acute angle of the mounting hole 502 from easily damaging the oil film when it is subjected to impact loads. It is more suitable for large equipment under large impact loads.

Referring to Figures 17 to 21, a measuring chamber 601 for containing lubricating oil is provided in the lower thrust bearing 6, an opening for the lubricating oil to enter is provided at the top of the measuring chamber 601, and a sensor mounting hole 602 for installing a temperature sensor is provided at the bottom of the measuring chamber 601, the sensor mounting hole 602 is connected to the measuring chamber 601, and a wire groove 603 is provided on the outer surface of the lower thrust bearing 6 on the back of the measuring chamber 601, and the wire groove 603 is connected to the sensor mounting hole 602. The measuring chamber 601 is provided on the lower thrust bearing 6 and the sensor mounting hole 602 is provided, so that the temperature measuring device can be conveniently installed to monitor the temperature of the lower thrust bearing 6; when measuring the temperature, the oil temperature of the measuring chamber 601 can indirectly reflect the temperature of the lower thrust bearing 6, and the working state of the lower thrust bearing 6 can be predicted, so as to better monitor the operating state of the crusher and reduce the unpredictable failure shutdown of the crusher.

Among them, the measuring chamber 601 is hole-shaped, and its opening faces the mating surface of the lower thrust bearing 6 and the upper thrust bearing 5 .

Among them, the measuring greenhouses 601 are divided into two groups, two in each group, and the two groups of measuring greenhouses 601 are arranged at 180°.

Among them, the wire groove 603 is opened on the opposite surface of the mating surface of the lower thrust bearing 6 and the upper thrust bearing 5 .

The cross section of the groove is designed to be rectangular, semicircular, or U-shaped, preferably a U-shaped cross section, and both ends of the wire groove 603 are connected to the inner circle outer wall and the outer circle outer wall of the lower thrust bearing 6 .

Therein, a plurality of screw holes 604 are further provided on the outer wall of the outer circle of the lower thrust bearing 6, and preferably 5 or 7 screw holes 604 are provided.

Referring to FIG9 , the anti-rotation device includes a moving cone sphere 2010, a spherical tile 207, a spherical tile frame 209 and a main shaft 208. The spherical tile frame 209 is fixed on the main shaft 208, the spherical tile 207 is fixed in the spherical tile frame 209, the moving cone sphere 2010 is fixed in the moving cone 201, the moving cone sphere 2010 sits on the spherical tile 207 and slides freely on the spherical surface of the spherical tile 207, and a universal joint 204 is provided between the moving cone 201 and the main shaft 208, and the two ends of the universal joint 204 are respectively connected to the top of the moving cone 201 and the spherical tile. The tile frame 209, the top of the moving cone 201 and the end of the universal joint 204 cooperate to form a sliding pair; a universal joint 204 is provided between the moving cone 201 and the main shaft 208, and the two ends of the universal joint 204 are respectively connected to the top of the moving cone 201 and the spherical tile frame 209, so that when the crusher is running, the moving cone 201 only swings in a circle and does not rotate, so that the copper sleeve on the moving cone 201 rolls on the spherical tile frame 209 when the crusher is running without load, without sliding friction, small load, less heat, and even if the moving cone 201 is running without load for a long time, the copper sleeve on the moving cone 201 will not burn. In addition, since the moving cone 201 does not rotate, intermittent feeding will not affect the movement state of the moving cone 201, and there is no reciprocating motion, which reduces the failure rate of the copper sleeve under the moving cone 201.

Among them, one end of the universal joint 204 is a spline shaft, and a spline sleeve 205 is installed on the upper part of the moving cone 201. The spline shaft and the spline sleeve 205 are spline-connected, and the spline shaft and the spline sleeve 205 can slide relative to each other. It is convenient to install the universal joint 204, and the effect of non-rotation and relative sliding can be achieved without changing the structure of the moving cone 201.

Among them, the top of the moving cone 201 is covered with an upper connecting plate 206 through bolts, and the spline sleeve 205 is detachably installed on the upper connecting plate 206 through bolts. It can facilitate the installation and connection of the spline sleeve 205 and facilitate later maintenance.

Among them, a coupling 203 is installed on the lower connecting plate 202 of the spherical tile frame 209, and the lower part of the universal joint 204 is connected to the coupling 203 through bolts. It is convenient to install and support the universal joint 204, and it is easy to disassemble during later maintenance.

Referring to Figure 10, a locking material distribution device 3 is also provided on the top of the moving cone assembly 2. The locking material distribution device 3 includes a lock nut 303 and a material distribution plate 304. The material distribution plate 304 is located on the lock nut 303. And fixed by the connecting bolt group 306, the top of the material distribution plate 304 is recessed inward to provide a material storage cavity 307. The storage cavity 307 is provided with a lifting lug 308, and the top of the lifting lug 308 is lower than the top surface of the storage cavity 307. Lifting lugs 308 are provided in the storage cavity 307. The top of the lifting lugs 308 is lower than the top surface of the storage cavity 307. Materials are stored in the storage cavity 307. The materials to be crushed fall onto the materials in the storage cavity 307 and then enter the crushing chamber. The cavity will not directly flush the material distribution tray 304, thus avoiding the erosion of the material distribution tray 304 and causing wear of the distribution tray 304. The material distribution tray 304 has a long service life; and the lifting lugs 308 can facilitate the lifting of the material distribution tray 304. After the material storage chamber 307 is full of materials, the materials will not directly wash into the lifting lugs 308, so that the lifting lugs 308 will not be worn.

Among them, the outer diameters of the material distribution plate 304 and the locking nut 303 are consistent. When the multi-cylinder cone crusher is working, it uses swing extrusion to crush the rebound materials and the materials that overflow the distribution tray 304 when there is too much incoming material cannot contact the bottom of the distribution tray 3044. Therefore, it is effectively guaranteed that the bottom of the distribution tray 304 will not be worn. Condition.

Among them, the inner wall of the storage chamber 307 is provided with a countersunk hole 309, and the side of the locking nut 303 is recessed inward to provide a groove 3010 for operating the connecting bolt group 306. The groove 3010 is provided with an oblique upward circular hole 3011 through On the upper end surface of the locking nut 303, the connecting bolt group 306 has one end set in the countersunk hole 309, and the other end passes through the round hole 3011 and is set in the groove 3010. It is ensured that the nuts and screw heads connecting the bolt group 306 will not be worn, and the subsequent disassembly and maintenance are easy to ensure.

Among them, a positioning seat is provided at the bottom of the material distribution tray 304. The outer diameter of the outer circle of the positioning seat is smaller than the inner diameter of the inner circle of the locking nut 303, which facilitates the hoisting, positioning and installation of the material distribution tray 304.

Among them, the moving cone lining plate 302 is installed on the moving cone 201. The moving cone lining plate 302 is installed with a welding ring 305. The locking nut 303 is provided with internal threads and is threadedly connected to the moving cone 201. The moving cone lining plate 302 is connected through the welding ring 305. Lock it on the moving cone 201, and weld the welding ring 305 to the moving cone lining plate 302 and the locking nut 303 respectively.

Referring to Figures 2 to 8, the frame assembly 1 includes a plurality of clear cavity cylinders and a frame body. The clear cavity cylinders have the function of lifting the fixed cone assembly 8 under the action of the hydraulic system. ; Further, the frame assembly 1 is provided with an inner rib 101, and one side of the inner rib 101 is provided with an oil return chamber 102 for the horizontal shaft assembly and the eccentric assembly transmission meshing transmission. The inner rib 101 adopts a U-shaped structure. An oil return port 103 is provided at the bottom of the oil return chamber 102, and the maximum diameter of the bottom of the frame is 3900mm.

Referring to Figures 11 and 12, the eccentric assembly includes an eccentric sleeve 4 and a counterweight. The counterweight is installed on the eccentric sleeve 4. The eccentric sleeve 4 includes a first rotation axis 403, which is the central axis of the inner hole of the eccentric sleeve 4, a second The rotation axis 404 is the central axis of the upper outer circle of the eccentric sleeve 4, the eccentricity angle 401 is the angle α between the first rotation axis 403 and the second rotation axis 404, the eccentricity 402, and the first rotation axis 403 and the second rotation axis on the top surface of the eccentric sleeve 4. The two rotary axes 404 are at a distance e; the eccentricity angle 401α is set in the range of 1°30′-2°, and the eccentricity 402 is set in the range of 35-38mm. Heavy counterweights are used, and the eccentricity angle is optimized to ensure large crushing force, thereby achieving It can withstand the powerful crushing force of heavy-duty crushers and meet their continuous operation requirements for crushing hard materials.

Referring to Figures 22 to 26, an adjustment ring 701 assembly 7 is also included. The adjustment ring 701 assembly 7 includes an adjustment ring 701, a locking ring 702, a locking cylinder 703 and a hydraulic motor 704. The adjustment ring 701 sits on the machine. On the frame assembly 1, the adjusting ring 701 is provided with internal threads and is connected with the external threads of the fixed cone; the locking ring 702 is provided on the adjusting ring 701, and the locking ring 702 is provided with internal threads and is connected with the external threads of the fixed cone. The locking cylinder 703 is installed on the locking ring 702. The movable end of the locking cylinder 703 is located on the adjusting ring 701. The hydraulic motor 704 is installed on the adjusting ring 701 and drives the fixed cone assembly 8 to rotate. Among them, there are 18 locking cylinders 703 and 3 hydraulic motors 704. The outer diameter D of the adjustment ring 701 is greater than 3500mm. It adopts a heavy-duty design of an overall annular structure. The minimum wall thickness at the internal thread is more than 200mm. The weight of a single piece of the adjustment ring 701 is more than 10000kg. . The outer diameter D of the locking ring 702 is greater than 2800mm, and it adopts a heavy-duty design with an overall annular structure. The minimum wall thickness at the internal thread is 250mm, and it is designed with at least 3 turns of full threads. A valve core 706 is provided in the cylinder body 705 of the locking cylinder 703. The lower part of the cylinder body 705 adopts a flange 707 design. A threaded pressure plate 708 is provided above the locking cylinder 703. The pressure plate 708 is positioned with the locking ring 702 pin 709. , all locking cylinders 703 adopt the top oil inlet method, and the 18 locking cylinders 703 are connected by series pipelines.

A temperature control method for a lower thrust bearing of a multi-cylinder cone crusher, comprising four measuring chambers 601 arranged on a lower thrust bearing 6 and a sensor mounting hole 602 arranged at the bottom of the measuring chamber 601, wherein the sensor mounting hole 602 is connected to the measuring chamber 601, an opening for lubricating oil to enter is provided on the measuring chamber 601, a temperature sensor is installed in the sensor mounting hole 602, and lubricating oil is stored in the measuring chamber 601; temperature parameters t1, t2, t3 and t4 set by the system are set, wherein t1<t2<t3<t4; According to the oil temperature of each measuring chamber 601 measured by four temperature sensors, the measurement values of the four temperature sensors are T1, T2, T3 and T4 respectively; the average temperature T of the lower thrust bearing 6 monitored by the four temperature sensors is calculated; when T<t1, it is prohibited to start the crusher; when T<t2, feeding is prohibited; when T>t3, feeding is stopped; when T>t4, the crusher is stopped; when the deviation of any two of T1, T2, T3 and T4 exceeds Δt, the system sends out an "abnormal temperature of the lower thrust bearing 6 sensor" alarm signal.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A heavy-duty multi-cylinder cone crusher, which is characterized by: including a frame assembly, a moving cone assembly, a fixed cone assembly and an eccentric assembly. The fixed cone assembly is located on the frame assembly, and the moving cone assembly An anti-rotation device is installed inside the crusher, and the anti-rotation device is installed in the frame assembly in conjunction with the main shaft. The movable cone assembly cooperates with the fixed cone assembly to form a crushing cavity. The eccentric assembly drives the movable cone assembly to perform circular swing; the eccentric assembly A thrust bearing is provided between the Chenghe frame assembly. The thrust bearing includes an upper thrust bearing and a lower thrust bearing. A number of lubricating oil grooves are evenly provided on the mating surfaces of the upper thrust bearing and the lower thrust bearing. Both ends of the lubricating oil groove penetrate the upper thrust bearing. Bearing inner and outer surfaces; The anti-rotation device includes a moving cone ball, a spherical bearing, a spherical bearing frame and a main shaft. The spherical bearing frame is fixed on the main shaft, the spherical bearing is fixed in the spherical bearing frame, the moving cone ball is fixed in the moving cone, the moving cone ball sits on the spherical bearing and slides freely on the spherical surface inside the spherical bearing. A universal joint is provided between the moving cone and the main shaft. The two ends of the universal joint are respectively connected to the top of the moving cone and the spherical bearing frame, and the top of the moving cone and the end of the universal joint cooperate to form a sliding pair; one end of the universal joint is a spline shaft, a spline sleeve is installed on the upper part of the moving cone, the spline shaft and the spline sleeve are splined, the spline shaft and the spline sleeve can slide relatively, the top of the moving cone is covered with an upper connecting plate by bolts, the spline sleeve is detachably installed on the upper connecting plate by bolts, the spherical bearing frame is installed with a coupling through the lower connecting plate, and the lower part of the universal joint is connected to the coupling by bolts. 2. A heavy-duty multi-cylinder cone crusher according to claim 1, characterized in that: a measuring chamber for containing lubricating oil is provided in the lower thrust bearing, and an opening for lubricating oil to enter is provided at the top of the measuring chamber. A sensor mounting hole for installing a temperature sensor is provided at the bottom of the measuring greenhouse. The sensor mounting hole is connected to the measuring greenhouse. A wire trough is provided on the outer surface of the lower thrust bearing on the back of the measuring greenhouse. The wire trough is connected to the sensor mounting hole. 3. A heavy-duty multi-cylinder cone crusher according to claim 1, characterized in that: the top of the moving cone assembly is also provided with a locking and distributing device, and the locking and distributing device includes a locking nut and a distributing plate. The material tray is located on the locking nut and is fixed by the connecting bolt group. The top of the material distribution tray is recessed inward to provide a material storage cavity. There are lifting lugs in the storage cavity. The top of the lifting lugs is lower than the top surface of the storage cavity. . 4. A heavy-duty multi-cylinder cone crusher according to claim 3, characterized in that: the outer diameter of the material distribution plate and the locking nut are consistent, the inner wall of the storage chamber is provided with a countersunk hole, and the locking nut The side is recessed inward with a groove for operating the connecting bolt group. There is a round hole diagonally upward in the groove that goes straight to the upper end of the locking nut. One end of the connecting bolt group is set in the countersunk hole, and the other end is set through the round hole. in the groove. 5. A heavy-duty multi-cylinder cone crusher according to claim 1, characterized in that: the frame assembly includes a plurality of clear-cavity oil cylinders and a frame body, and the clear-cavity oil cylinder has the function of moving the fixed cone under the action of the hydraulic system. The assembly has the function of lifting and lifting; the frame assembly is provided with internal ribs, and one side of the internal ribs is provided with an oil return chamber for the horizontal shaft assembly and the eccentric assembly transmission meshing transmission. The internal ribs adopt a U-shaped structure. There is an oil return port at the bottom of the oil return chamber. 6. A heavy-duty multi-cylinder cone crusher according to claim 1, characterized in that: the eccentric assembly includes an eccentric sleeve and a counterweight, the counterweight is installed on the eccentric sleeve, the eccentric sleeve includes a first rotating axis, i.e., the central axis of the inner hole of the eccentric sleeve, a second rotating axis, i.e., the central axis of the upper outer circle of the eccentric sleeve, an eccentric angle, i.e., the angle α between the first rotating axis and the second rotating axis, and an eccentric distance, i.e., the distance e between the first rotating axis and the second rotating axis on the top surface of the eccentric sleeve; the eccentric angle α is set in the range of 1°30′-2°, and the eccentric distance is set in the range of 35-38mm. 7. A heavy-duty multi-cylinder cone crusher according to claim 1, characterized in that: it also includes an adjusting ring assembly, the adjusting ring assembly includes an adjusting ring, a locking ring, a locking cylinder and a hydraulic motor, the adjusting ring sits on the frame assembly, the adjusting ring is provided with an internal thread and is connected to the external thread of the fixed cone; the locking ring is arranged on the adjusting ring, the locking ring is provided with an internal thread and is connected to the external thread of the fixed cone, the locking cylinder is installed on the locking ring, the movable end of the locking cylinder sits on the adjusting ring, the hydraulic motor is arranged on the adjusting ring and drives the fixed cone assembly to rotate; a valve core is arranged in the cylinder body of the locking cylinder, the lower part of the cylinder body adopts a flange design, a threaded pressure plate is arranged on the top of the locking cylinder, the pressure plate is positioned with the locking ring pin, the locking cylinders all adopt the top oil inlet method, and the locking cylinders are connected with series pipelines. 8. A heavy-duty multi-cylinder cone crusher according to claim 7, characterized in that: the adjustment ring adopts a heavy-duty design of an integral annular structure, the minimum wall thickness at the internal thread is more than 200mm, and the weight of a single piece of the adjustment ring is more than 10,000kg. 9. A heavy-duty multi-cylinder cone crusher according to claim 7, characterized by: the outer diameter D of the locking ring is greater than 2800mm, using a heavy-duty design of an overall annular structure, the minimum wall thickness at the internal thread is 250mm, and the minimum design 3 turns of full thread. 10. A method for controlling the temperature of the lower thrust bearing of a multi-cylinder cone crusher, which is characterized by: a thrust bearing is provided between the eccentric assembly and the frame assembly. The thrust bearing includes an upper thrust bearing and a lower thrust bearing. The upper thrust bearing There are a number of lubricating oil grooves evenly arranged on the mating surface of the lower thrust bearing. Both ends of the lubricating oil groove penetrate the inner and outer surfaces of the upper thrust bearing; the lower thrust bearing is equipped with four measuring chambers for containing lubricating oil. The top of the chamber is provided with an opening for lubricating oil to enter, and a sensor mounting hole for installing a temperature sensor is provided at the bottom of the measuring chamber. The sensor mounting hole is connected to the measuring chamber, and is opened on the outer surface of the lower thrust bearing on the back of the measuring chamber. There is a wire trough connected to the sensor mounting hole; a temperature sensor is installed in the sensor mounting hole, and lubricating oil is stored in the measuring chamber; set the temperature parameters t1, t2, t3 and t4 set by the system, where t1<t2<t3 <t4; According to the oil temperature in each measuring chamber measured by the four temperature sensors, the measured values of the four temperature sensors are T1, T2, T3 and T4 respectively; calculate the average temperature T of the lower thrust bearing monitored by the four temperature sensors. ;When T<t1, it is forbidden to start the crusher; when T<t2, feeding is forbidden; when T>t3, feeding is stopped; when T>t4, the crusher is stopped; when T1, T2, T3 and T4 If the deviation between any two exceeds Δt, the system will issue an "abnormal temperature of the lower thrust bearing sensor" alarm signal.