Integrated module combined type double-roller crusher

Abstract

According to the integrated module combined type double-roller crusher provided by the invention, a highly-integrated module combination mode is adopted, the double-roller units can be combined according to actual requirements, the motor is directly integrated on the main machine, and the equipment integration degree is improved by adopting a direct-connection and direct-drive driving mode. The double-roller crusher comprises a rack base and more than one double-roller unit stacked on the rack base along the height direction, the double-roller unit comprises a fixed roller, a motor A directly connected with the fixed roller, a movable roller and a motor B directly connected with the movable roller; the motor A and the motor B are flange type direct-connection direct-drive permanent magnet motors; a motor shell direct connection flange of the motor A is connected with a motor direct connection end bearing seat at the corresponding end of a roller shaft of the fixed roller, and the power output end of the motor A is directly connected with the roller shaft of the fixed roller through a coupler; a motor shell direct connection flange of the motor B is connected with a motor direct connection end bearing seat at the corresponding end of the roller shaft of the movable roller, and the power output end of the motor B is directly connected with the roller shaft of the movable roller through a coupler.

Description

Technical Field

[0001] The present invention relates to a double-roll crusher, in particular to an integrated modular combined double-roll crusher, belonging to the technical field of double-roll crushers of powder processing equipment. Background Art

[0002] The double-roll crusher is a key piece of equipment used in the fuel crushing process before sintering iron in the metallurgical industry. It consists of fixed and movable rollers that rotate relative to each other. During actual crushing, the fuel (coke or coal) is located in the gap between the two rollers. Pressure loads are applied to the roller surfaces of the movable rollers via the two ends of the roller shaft, squeezing and crushing the fuel between the rollers to produce products of uniform shape (particle size).

[0003] 1. Process Flow: The traditional fuel crushing process for sintered mixed ore is divided into two steps: primary crushing and fine crushing. Primary crushing is performed by a two-roll crusher, while fine crushing (including coarse and fine crushing) is performed by a four-roll crusher. The two-roll crusher for primary crushing and the four-roll crusher for fine crushing are generally installed in two separate buildings. The product from the primary two-roll crusher is transported by belt conveyor to the four-roll crusher for coarse and fine crushing for further crushing.

[0004] The process flow of traditional fuel crusher is as follows: Figure 1 As shown, the traditional process flow for fuel crushing before sintering consists of two steps: primary crushing and fine crushing. A belt conveyor transports the fuel to a two-roll crusher for primary crushing. From there, the fuel is transported via a stacker and reclaimer hopper and belt conveyor to a four-roll crusher for fine crushing. Because the two-roll crusher's capacity exceeds that of the four-roll crusher, the stacker and reclaimer hopper acts as a buffer. Otherwise, variable frequency speed regulation of the conveyor would be required to control the feed rate to the two-roll crusher to match the four-roll crusher's capacity. Generally, the two-roll crusher and the four-roll crusher are located in separate factory buildings, and various belt conveyors are required to support the fuel transport between the two and four rollers.

[0005] In some cases, because the two-roller crusher has a higher capacity than the four-roller crusher (for models with a roller diameter of φ1200: 90 tons / hour for two-rollers and 40 tons / hour for four-rollers), the crushed product must be stored in a stacker to store the excess capacity of the two-roller crusher. To address this, conveyor speed regulation is currently commonly used to reduce the feed rate of the two-roller crusher, allowing the two-roller to directly feed the four-roller evenly. This also wastes energy as the two-roller pulls the small cart. Furthermore, this process itself increases the plant's floor space, infrastructure, and investment in auxiliary equipment.

[0006] 2. Equipment Structure: Traditional double-roll crushers have been around for over 100 years. They typically utilize two motor / reducer sets located on either side of the main frame. Two sets of couplings or two sets of pulleys (sprockets) drive one or two sets of rollers (in a two-roll crusher) or four-roll crusher. This type of transmission requires a large floor space, requires significant investment in plant and equipment foundations, has low transmission efficiency, and is difficult, labor-intensive, and time-consuming to install.

[0007] like Figure 2 and Figure 3 The structural model of the traditional two-roll crusher and the schematic diagram of the transmission system are shown in the figure. Figure 4 and Figure 5 The structure model and transmission system principle diagram of the traditional four-roll crusher are shown in the figure. The motor reducer unit of the traditional two-roll and four-roll crusher is located on one side of the main machine, and the other side is the main machine of the two-roll or four-roll crusher. Each has its own base foundation, which occupies a large area.

[0008] 3. Motor traction: At present, the traction motor of the traditional roller crusher is still limited to ordinary AC motors. The general configuration has a large installed power (two 45KW units for two-roll crushers; one 90KW and one 55KW for four-roll crushers), high energy consumption, no speed regulation, and a reducer transmission ratio is required to achieve constant speed traction to meet the linear speed requirements of the roller surface transmission. This motor traction method no longer meets the current energy-saving, high-efficiency, green and low-carbon requirements.

[0009] 4. In terms of roller gap control and setting:

[0010] Roller crushers with traditional constant thrust loading (spring loading or cylinder loading) have been on the market for over 100 years. While the constant thrust loading method has evolved from spring loading to cylinder switch-controlled loading, the constant thrust loading method has not fundamentally changed. However, traditional roller crushers with constant thrust loading have many drawbacks in actual operation:

[0011] (1) The setting of the working roll gap adopts the method of initial pad (rigid block). The roll surface cannot be used as a reference, and there is no direct connection with the changes in roll diameter and roll surface due to long-term wear. Affected by the uneven load of the material falling, the roll surface wears unevenly, the roll diameter and roll surface change greatly, the oil cylinder is affected by the uneven load and the impact of falling iron, and the synchronization deviation is large. In addition, due to vibration, the initial pads at the ends of the two roll shafts are very easy to fall off. Under the influence of the above factors, the two roll shafts become torsionally unbalanced, the roll gap opening is unstable, and the particle size is uneven. The particle size of less than 0.5mm and greater than 5mm increases, resulting in uneven ore temperature in the subsequent sintering process, high solid fuel consumption, low drum strength, and low sintered ore qualification rate.

[0012] (2) Due to the impact of eccentric load, the two oil cylinders at the shaft end deviate greatly and are not synchronized. The movable roller shaft and the bearing seats at both ends of the roller shaft are twisted. In the absence of follow-up self-adaptive compensation, a large twisting and overturning moment is generated, resulting in frequent equipment failures such as cylinder bursting, piston rod and core rod bending and breaking, high equipment operating costs and low efficiency.

[0013] (3) Due to the large size and weight of the roller assembly, only a rough clearance fit can be used for assembly with the frame to facilitate the hoisting of the assembled large and heavy roller assembly onto the frame guide rails. When the crusher is running under load, the large gap between the rolling bearing seat and the frame guide rails will cause the roller surface to be subjected to stress and eccentric loads, resulting in vibration and jumping. Since the frame is mostly welded together with steel plates, long-term vibration will cause fatigue cracking of the frame welds, resulting in the frame being replaced, repaired, or scrapped.

[0014] (4) Loading method of spring and cylinder switch quantity control:

[0015] Spring loading method: Before loading (tightening the compression spring), the roll gap must be visually determined and the initial pad (rigid stop iron) must be placed. A manual wrench is then used to set the constant thrust (spring force). Setting the spring force in this manner is labor-intensive, and manually placing the pad requires climbing up and down while the equipment is operating, posing a significant risk of personal injury.

[0016] Conventional hydraulic cylinder constant thrust loading, while simpler in that it relies on oil pressure to set the thrust, is similar to spring loading in that it still requires manual placement of a shim to determine the initial roll gap. However, the shim setting method has no direct correlation with roll wear, roll diameter, or changes in roll surface. Furthermore, the shim itself is prone to falling off.

[0017] The aforementioned spring-loaded, conventional hydraulic cylinder switch-loaded loading methods and the manual roll gap setting for initial pad placement are not absolute values for the parallel roll gap between the two rollers. The crushed fuel particle size does not correspond to the actual roll gap. The roll gap wears with the roller surface, and changes in roll diameter and roll surface require frequent, experimental, and manual adjustments. Summary of the Invention

[0018] In view of this, the present invention provides an integrated modular combined roller crusher, which adopts a highly integrated modular combination and can combine roller units according to actual needs, thereby simplifying the process flow; and the motor is directly integrated into the main machine, adopting a direct-connected direct-drive drive method, thereby improving the equipment integration.

[0019] The technical solution of the present invention is: an integrated modular combined roller crusher, comprising: a frame base and one or more roller units stacked on the frame base in a height direction;

[0020] The roller unit includes: a fixed roller, a motor A directly connected to the fixed roller, a movable roller, and a motor B directly connected to the movable roller;

[0021] The motor A and motor B are both flange-type direct-connected direct-drive permanent magnet motors;

[0022] The motor housing direct-connection flange of the motor A is directly connected to the motor direct-connection end bearing seat at the corresponding end of the fixed roller shaft, and the power output end of the motor A is directly connected to the roller shaft of the fixed roller through a coupling;

[0023] The motor housing direct-connection flange of the motor B is directly connected to the motor direct-connection end bearing seat at the corresponding end of the roller shaft of the movable roller, and the power output end of the motor B is directly connected to the roller shaft of the movable roller through a coupling.

[0024] As a preferred embodiment of the present invention, the roller unit is mounted on the frame base via a frame body;

[0025] The top of the frame is detachably mounted with an upper frame crossbeam, which is equipped with a feeding unit.

[0026] Flange connecting plates are symmetrically provided on two opposite sides of the frame body for use in the expansion and assembly of the roller units.

[0027] As a preferred embodiment of the present invention, when there is only one pair of roller units, a two-roll crusher is formed;

[0028] When two of the roller units are integrated, a four-roll crusher is formed, wherein the two roller units are stacked up and down and supported on the frame base; wherein the bottom roller unit located at the bottom is used for fine crushing; and the upper stacked roller unit located at the top is used for coarse crushing;

[0029] When three of the roller units are integrated, a six-roller crusher is formed; the three roller units are stacked up and down and supported on the frame base; the upper stacked roller unit located at the top is used as the primary crushing roller unit to complete the primary crushing process; the upper stacked roller unit located in the middle is used for coarse crushing, and the bottom roller unit located at the bottom is used for smooth roller fine crushing.

[0030] As a preferred embodiment of the present invention, the upper and lower parts of the bearing seats at both ends of the roller shaft of the movable roller are provided with torsional self-adaptive compensation devices;

[0031] The axial direction of the roller is the horizontal direction, and the radial direction in the horizontal plane is the longitudinal direction;

[0032] The torsion self-adaptive compensation device comprises: a longitudinal compensation base plate, a longitudinally movable transverse guide plate and a transversely movable rotation compensation plate;

[0033] The longitudinal compensation base plate is arranged on the frame, and the longitudinal movable transverse guide plate is slidably matched with the longitudinal compensation base plate and can move longitudinally relative to the longitudinal compensation plate;

[0034] The transversely movable rotation compensation plate is in sliding cooperation with the longitudinally movable transverse guide plate, and can move transversely relative to the longitudinally movable transverse guide plate;

[0035] The laterally movable rotational compensation plate is rotationally matched with the bearing seat at the corresponding position, and the direction of the rotation axis is along the vertical direction. The bearing seat can rotate around the vertical direction relative to the laterally movable rotational compensation plate.

[0036] As a preferred embodiment of the present invention, the cylinder heads of the two cylinders of the roller gap control group paired synchronous cylinder device in the roller crusher are respectively hinged to the cylinder brackets, and the piston rods of the two cylinders are respectively hinged to the spherical seats at the corresponding positions of the movable rollers.

[0037] As a preferred embodiment of the present invention, the tops of the bearing seats at both ends of the roller shafts of the fixed roller and the movable roller are respectively matched with the frame guide rails through gap adjustment wedge blocks, and the gap between the bearing seat and the frame guide rails is adjusted by the gap adjustment wedge blocks.

[0038] As a preferred embodiment of the present invention, when the pair of rollers is used for fine crushing, both the movable roller and the fixed roller are provided with a turning device for efficiently repairing roller surface wear; the turning device for efficiently repairing roller surface wear repairs the roller surface by turning.

[0039] As a preferred embodiment of the present invention, the roller surface wear efficient repair turning device is installed on the frames on both sides of the bottom roller unit, and includes: a mounting frame, a Y-direction feed unit, a cutting tool clamping table, an X-direction roller surface laser detection element, an X-direction table feed carriage, an L carriage and a Y-direction position laser detection element;

[0040] The axial direction of the roller shaft in the roller unit is the Y direction, and the radial direction in the horizontal plane is the X direction;

[0041] The X-axis roller surface laser detection element is used to detect the radial height of the roller surface to determine the position that needs turning and repairing;

[0042] The L-shaped carriage is in sliding engagement with the mounting frame and can be moved relative to the mounting frame in the Y direction under the drive of the Y-direction feeding unit, thereby driving the X-direction roller surface laser detection element to move in the Y direction to detect the radial height of the roller surface at different axial positions;

[0043] The X-axis tool carriage feed carriage is mounted on the L-axis carriage, slidingly cooperates with the L-axis carriage, and can move relative to the L-axis carriage in the X-axis direction;

[0044] The cutting tool clamping tool table is mounted on the X-axis tool table feed carriage; the cutting tool in the cutting tool clamping tool table faces the roller surface and is fed in the X direction under the action of the X-axis tool table feed carriage to perform turning repair on the roller surface;

[0045] The X-axis roller surface laser detection element is installed on the X-axis tool platform feed carriage and is also used to monitor the feed amount of the X-axis tool platform feed carriage.

[0046] As a preferred embodiment of the present invention, the Y-direction feed unit includes a Y-direction lead screw arranged along the Y-direction on the mounting frame, a Y-direction lead screw nut threadedly engaged with the Y-direction lead screw, a Y-direction servo motor arranged at one end of the Y-direction lead screw for driving the Y-direction lead screw to rotate, and a plurality of Y-direction linear guide rails arranged along the Y-direction on the mounting frame;

[0047] The L carriage is slidably engaged with the mounting frame via a Y-direction linear guide rail, and the Y-direction lead screw nut is connected to the L carriage, capable of driving the L carriage to move along the Y direction;

[0048] The X-axis tool table feed carriage also uses a ball screw to convert the rotation of the X-axis servo motor into a linear motion feed mode.

[0049] As a preferred embodiment of the present invention, the roller gap control group pair-type synchronous cylinder device in the roller crusher adopts a constant roller gap roller crusher control system based on an electro-hydraulic servo control pressure position closed loop;

[0050] A uniform material distribution device is provided in the feeding unit of the double-roll crusher.

[0051] Beneficial effects:

[0052] (1) The integrated modular combined roller crusher of the present invention adopts a highly integrated modular combination, and can combine roller units according to actual needs. When combined, the longitudinal expansion combination is directly achieved through symmetrical flange connection and bolt fastening to form a two-roller, four-roller or six-roller crusher configuration. As a result, the six-roller crusher can meet the needs of simplifying the process flow of new projects and reducing the project investment scale. The new two-roller and four-roller crushers can also solve the problem of replacing and updating old equipment.

[0053] (2) In the roller unit of the integrated modular combined roller crusher of the present invention, the motor is directly integrated into the main machine in terms of motor traction; a direct drive method is adopted in which a flange permanent magnet motor is directly connected to the roller shaft bearing seat and the motor rotor is connected to the roller shaft, which not only improves the integration of the equipment, but also improves the transmission efficiency of the equipment, and greatly reduces the installed power and power consumption of the roller crusher.

[0054] (3) In the present invention, a wedge block pair clearance adjustment measure is adopted above the bearing seat in the connection between the roller assembly and the frame guide rail, which can not only enlarge the gap to facilitate the installation of the roller assembly on the frame, but also adjust the matching clearance between the bearing seat and the guide rail to the optimal state.

[0055] (4) In the present invention, longitudinal (radial direction of the roller shaft), transverse (axial direction of the roller shaft), and rotational follow-up self-adaptive compensation units for the bearing seat are added to the upper and lower planes of the movable roller bearing seat, which can eliminate the roller shaft torsional overturning moment caused by factors such as eccentric load, thereby effectively protecting the equipment from damage caused by the above reasons.

[0056] (5) When the roller unit is used for fine crushing, the roller gap of the fine crushing roller unit is small and the roller surface requirements are high. Based on this, the movable roller and the fixed roller of the fine crushing roller unit are both equipped with an efficient turning device for roller surface wear repair, which can efficiently detect and turn the roller surface. The efficient turning device for the fine crushing roller surface wear repair adopts advanced technical means such as servo motors, ball screws, linear guides, and laser detection elements to scan and read the numerical values (axial position values, radial size values) in the axial and radial directions of the roller surface. When the roller surface is axially fed and cut, an efficient turning method of radial high working feed and radial low fast feed is adopted to minimize the roller surface repair time and improve the repair efficiency. In addition, due to the new motor direct-connected direct-drive single roller drive method, the roller surface repair turning can be driven by a single roller, the speed is adjustable, the driving power is greatly reduced, and the energy saving effect is outstanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is the process flow chart of the traditional process of crushing fuel before sintering in metallurgy iron;

[0058] Figure 2 This is a schematic diagram of the structural model of a traditional two-roll crusher;

[0059] Figure 3 This is a schematic diagram of the transmission system principle of a traditional two-roll crusher;

[0060] Figure 4 This is a schematic diagram of the structural model of a traditional four-roll crusher;

[0061] Figure 5 This is a schematic diagram of the transmission system principle of a traditional four-roll crusher;

[0062] Figure 6 Schematic diagram of the structure of a novel two-roll crusher including a roller unit according to the present invention;

[0063] Figure 7 Schematic diagram of the transmission of a novel two-roll crusher including a pair of roller units according to the present invention;

[0064] Figure 8Schematic diagram of the structure of a novel four-roll crusher including two roller units of the present invention;

[0065] Figure 9 Schematic diagram of the transmission of a novel four-roll crusher including two roller units according to the present invention;

[0066] Figure 10 Schematic diagram of the structure of a novel six-roll crusher including three roller units according to the present invention;

[0067] Figure 11 Schematic diagram of the transmission of the novel six-roll crusher including three roller units of the present invention;

[0068] Figure 12 This is a transmission diagram of the roller shaft of the present invention being directly connected and driven by a motor;

[0069] Figure 13 Exploded diagram of the structure of the bearing seats at both ends of the movable roller equipped with a torsion self-adaptive compensation unit and a gap adjustment wedge;

[0070] Figure 14 A cross-sectional view showing the installation of torsional self-adaptive compensation units and gap adjustment wedges for the bearing seats at both ends of the movable roller;

[0071] Figure 15 This is a schematic diagram of a paired double-hinged shaft synchronous cylinder with a deviation correction and unloading protection function;

[0072] Figure 16 Schematic diagram of the cutting unit for repairing the wear on the surface of the fine crushing roller;

[0073] Among them: 1-frame base, 2-feeding unit, 3-upper frame crossbeam, 4-roller unit, 41-bottom roller unit, 42-upper superimposed roller unit, 5-protective cover, 6-motor A, 7-motor housing direct connection flange, 8-tensioning coupling, 9-motor direct connection end bearing seat, 10-fixed roller, 11-movable roller, 12-roller shaft, 13-motor B, 14-fuel, 15-conveyor;

[0074] 16-High-efficiency turning device for repairing roller surface wear, 161-Mounting frame, 162-X-axis servo motor, 163-Y-axis lead screw nut, 164-Y-axis lead screw, 165-Y-axis servo motor, 166-Y-axis linear guide, 167-Cutting tool clamping table, 168-X-axis roller surface laser detection element, 169-X-axis tool table feed slide, 170-L slide, 171-Y-axis position laser detection element;

[0075] 17-encoder, 18-encoder end bearing seat;

[0076] 19 - Self-adaptive compensating device for deflection and torsion below the movable roller bearing seat, 191 - longitudinal compensation base plate, 192 - longitudinally movable transverse guide plate, 193 - transversely movable rotation compensation plate; 20 - Self-adaptive compensating device for deflection and torsion above the movable roller bearing seat;

[0077] 22-roll gap control paired synchronous cylinder device, 221-cylinder B, 222-cylinder A, 223-paired synchronous cylinder correction and unloading unit, 224-cylinder bracket, 225-pillow seat, 226-spherical seat;

[0078] 23- Clearance adjustment wedge. DETAILED DESCRIPTION

[0079] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0080] Example 1:

[0081] In view of the defects and shortcomings of the traditional double-roll crusher mentioned in the above technical background, in today's era of increasingly high requirements for low-carbon environmental protection and intelligent automation, this embodiment provides a modular, low-energy-consuming, fully automatic double-roll crusher that can simplify the process flow and highly integrate the equipment.

[0082] The double-roll crusher adopts a modular structure and can be combined into two-roller, four-roller, and six-roller crushers according to usage requirements, thus creating conditions for simplifying the process design.

[0083] This new double-roll crusher utilizes two working rolls (a fixed roll and a movable roll) as a single double-roll unit. This modular double-roll crusher includes a frame base 1 and one or more double-roll units 4 mounted on the frame base 1. These double-roll units 4 are stacked and extended longitudinally (i.e., height-wise). The bottommost double-roll unit 4, located directly on the frame base 1, is the bottom double-roll unit 41, while the double-roll unit above it is the top stacked double-roll unit 42. The bottom double-roll unit 41 can be configured as a primary crushing double-roll unit (hardened rollers) for a two-roll crusher or a fine crushing double-roll unit (smooth rollers) for a four-roll or six-roll crusher, using either plain or hardened rollers. The top stacked double-roll unit 42, using hardened rollers, can function as the upper coarse crushing stacked double-roll unit for a four-roll crusher or the top primary crushing stacked double-roll unit for a six-roll crusher. The new two-roll and four-roll crusher models are suitable for retrofitting and upgrading older production line equipment, while the new six-roll crusher model is more suitable for new plant designs with simplified process flows.

[0084] Specifically, when there is only one roller unit 4, that is, only the bottom roller unit 41 is provided, the following can be formed: Figure 6 and Figure 7The new two-roll crusher shown in the figure has the bottom roller unit 41 as the primary crushing roller unit (the plain roller should be replaced with a cladding roller); when the two roller units are combined, namely, a bottom roller unit 41 and an upper cladding roller unit 42, a roller unit as shown in the figure is formed. Figure 8 and Figure 9 In the new four-roll crusher shown in FIG, the bottom roller unit 41 is the fine crushing roller frame unit of the new four-roll crusher, and the upper superimposed roller unit 42 is the coarse crushing roller unit of the new four-roll crusher; when the three roller units 4 are combined, namely, one bottom roller unit 41 and two upper superimposed roller units 42, the following is formed: Figure 10 and Figure 11 In the new six-roller crusher shown in the figure, the two upper superimposed roller units 42 are respectively the primary crushing roller unit and the coarse crushing roller unit of the new six-roller crusher, and the upper superimposed roller unit 42 adopts two surfacing rollers; at this time, from top to bottom, the top primary crushing roller unit, the middle coarse crushing roller unit and the bottom fine crushing roller unit (smooth roller) of the new six-roller crusher and the frame base 1 constitute a complete combination of the new six-roller crusher.

[0085] In addition, the modular combined roller crusher further comprises a feeding unit 2 arranged on the top of the frame, and the feeding unit 2 realizes uniform material dropping through the feeding port of the upper frame crossbeam 3.

[0086] When there is only one roller unit 4 forming a two-roll crusher, it can be used alone for primary crushing. Figure 6 and Figure 7 As shown, the two-roller crusher includes: a frame base 1, a bottom roller unit 41 arranged on the frame base 1, and a feeding unit 2 arranged on the top of the frame; the outer covers of the fixed roller and the movable roller in the bottom roller unit 41 are equipped with protective covers 5; the feeding unit 2 is installed at the feeding port on the top of the frame; the fuel 14 to be crushed is transported to the feeding unit 2 by a conveyor 15 (generally a belt conveyor) and enters the roller gap through the feeding unit 2.

[0087] When two roller units (a bottom roller unit 41 and an upper superimposed roller unit 42) are integrated to form a four-roll crusher, the four-roll crusher can be used for fine crushing, completing both coarse and fine crushing steps. Figure 8 and Figure 9As shown, the four-roll crusher comprises a frame base 1, a bottom roller unit 41 and an upper stacked roller unit 42 mounted on the frame, and a feed unit 2 mounted on top of the frame. The upper stacked roller unit 42 and the bottom roller unit 41 are stacked and supported on the frame. The bottom roller unit 41, located at the bottom, is used for fine crushing, while the upper stacked roller unit 42, located at the top, is used for coarse crushing. The fuel 14 to be crushed is transported to the feed unit 2 by a conveyor 15 (typically a belt conveyor), where it enters the roller gap. The fixed and movable rollers in the bottom roller unit 41 and the upper stacked roller unit 42 are covered with protective covers 5.

[0088] When three roller units (a bottom roller unit 41 and two upper superimposed roller units 42) are integrated to form a six-roller crusher, the primary crushing and fine crushing processes can be integrated into one six-roller crusher, that is, the primary crushing of the two-roller crusher and the four-roller crusher of the traditional process flow are combined into a new model, which reduces the plant area, reduces the material conveying equipment, simplifies the process flow, and saves infrastructure and equipment investment.

[0089] like Figure 10 and Figure 11 As shown, the six-roll crusher includes a frame base 1, three roller units (a bottom roller unit 41 and two upper stacked roller units 42) mounted on the frame base 1, an upper frame crossbeam 3, and a feed unit 2. The bottom roller unit 41 and two upper stacked roller units 42 are supported vertically and side by side on the frame base 1. This novel six-roll crusher can integrate both primary and fine crushing processes, with the upper stacked roller unit 42 at the top serving as the primary crushing roller unit for primary crushing. The two lower roller units are used for fine crushing, with the middle upper stacked roller unit 42 for coarse crushing and the lower bottom roller unit 41 for fine crushing. The fuel 14 to be crushed is transported to the feeding unit 2 by a conveyor 15 (usually a belt conveyor), and enters the top primary crushing (roller gap 20mm), the middle coarse crushing (roller gap 8mm), and the bottom fine crushing (roller gap 6mm) through the feeding unit 2. The external covers of the fixed rollers and movable rollers in each pair of roller units are equipped with protective covers 5.

[0090] Thus, the frame base 1, the bottom pair of rollers unit 41 (surfacing rollers), the upper frame crossbeam 3 and the feeding unit 2 can be combined into a new two-roller crusher; the frame base 1, the bottom pair of rollers unit 41 (plain rollers), the upper superimposed pair of rollers unit 42, the upper frame crossbeam 3 and the feeding unit 2 can be combined into a new four-roller crusher; the frame base 1, the bottom pair of rollers unit 41 (plain rollers), the two upper superimposed pair of rollers units 42, the upper frame crossbeam 3 and the feeding unit 2 can be combined into a new six-roller crusher.

[0091] The roller unit 4 is installed on the frame base 1 through the frame. In order to facilitate the longitudinal expansion and combination, flange connecting plates are symmetrically provided on the two opposite sides of the frame, and the upper frame cross beam 3 is detachably installed on the top of the frame. When assembling, it is only necessary to remove the top upper frame cross beam 3, and realize the longitudinal (i.e. height direction) expansion and combination through symmetrical flange connection and bolt tightening to form a new two-roller, new four-roller or new six-roller crusher configuration, and finally install the upper frame cross beam 3 feeding unit 2 on the top of the frame.

[0092] This machine can be configured in two-, four-, or six-roller configurations, achieving breakthrough results in reducing equipment footprint, streamlining process flows, enabling intelligent automated control, reducing staff, lowering costs, increasing efficiency, and reducing carbon emissions. This machine is a general-purpose equipment for the powder processing industry and a key technology area for the fuel crushing process before sintering pre-iron mixed ore in the metallurgical industry.

[0093] Example 2:

[0094] Based on the above embodiment 1, the following improvements are made in terms of motor selection, motor connection and roller shaft drive of the roller unit 4:

[0095] The roller unit 4 in this embodiment is different from the traditional method of installing the motor reducer on the side of the main machine, and instead uses a more energy-saving flange-type direct-connected direct-drive permanent magnet variable-frequency speed-regulating motor, that is, the roller unit 4 in this embodiment is a motor direct-connected direct-drive roller unit.

[0096] like Figure 12 As shown, the roller unit 4 includes a fixed roller 10, a motor A6 directly connected to the fixed roller 10, and a movable roller 11, also directly connected to the motor B13. The fixed roller 10 has its shaft mounted on the guide rails on the fixed roller side of the main frame via bearing blocks at both ends. The movable roller 11 also has its shaft mounted on the guide rails on the movable roller side of the main frame via bearing blocks at both ends.

[0097] Motor A6 and motor B13 are both flange-type direct-coupled direct-drive permanent magnet motors. A flange-type direct-coupled direct-drive permanent magnet motor means that the motor housing has a motor housing direct-coupled flange 7 on the end face of the power output end. The flange-type direct-coupled direct-drive permanent magnet motor is directly connected to the bearing seat at the motor end corresponding to the roller shaft 12 (that is, the motor direct-coupled end bearing seat 9) through the motor housing direct-coupled flange 7. The power output end of the flange-type direct-coupled direct-drive permanent magnet motor is directly connected to the corresponding roller shaft 12 through the tension coupling 8; that is, the connection flange 7 of motor A6 is directly connected to the motor direct-coupled end bearing seat 9 at the corresponding end of the roller shaft 12 of the fixed roller 10, and the power output end of motor A6 is directly connected to the roller shaft 12 of the fixed roller 10 through the tension coupling 8; similarly, the motor housing direct-coupled flange of motor B13 is directly connected to the motor direct-coupled end bearing seat at the corresponding end of the roller shaft of the movable roller 11, and the power output end of motor B13 is directly connected to the roller shaft of the movable roller 11 through the tension coupling 8. An encoder 17 is provided at the other end of the roller shaft 12 , and the roller shaft 12 is supported by an encoder end bearing seat 18 .

[0098] As an example, when a flange-type direct-coupled, direct-drive permanent magnet motor is connected to the roller shaft 12, the stator mounting opening (i.e., the motor housing direct-coupled flange 7) is securely connected to the inner opening of the bearing seat 9 at the motor's direct-coupled end using positioning screws. A high-load tension sleeve coupling secures the inner-hole rotor to the end of the roller shaft 12, which extends deep into the inner hole. Simultaneously, the bearing seats and radial bearings at both ends of the roller shaft 12 act as a positioning mechanism, and the rotor is locked and suspended between the motor stator gaps via the tension coupling. The constant torque deflection magnetic field of the flange-type direct-coupled, direct-drive permanent magnet motor drives the permanent magnet rotor, which in turn rotates the roller shaft 12 via the tension coupling.

[0099] Both the fixed roller 10 and the movable roller 11 are driven by a direct-connected direct-drive permanent magnet motor. After adopting this drive mode, the motor A6 and the motor B13 can be directly integrated into the main frame. This changes the traditional structure in which two sets of motor / reducer units are arranged on one side of the main frame. The use of the motor directly driving the roller shaft in the present invention can improve the equipment integration, reduce the equipment footprint, and significantly reduce the installed capacity.

[0100] This new model utilizes a constant-torque flanged permanent magnet speed-regulating motor with a direct connection between the stator flange and the motor-end bearing seat 9 of the roller shaft 12. The inner rotor utilizes a tension coupling to connect to the roller shaft end for direct drive, maximizing the new model's highly integrated nature. Compared to traditional models, this significantly reduces the equipment's installation footprint, while also improving transmission efficiency and significantly reducing installed power. The energy-saving advantages of the permanent magnet motor also enhance the new model's overall energy savings, reaching up to 50% compared to traditional models.

[0101] In view of the heavy tasks of energy saving and consumption reduction and automation transformation of traditional models, the new model of integrated modular combined roller crusher provided in this embodiment leaves a lot of room for improvement in structural design.

[0102] The standard frame base is designed as the standard lower roller unit installation base, and the standard upper frame crossbeam is designed as the crossbeam of the standard upper superimposed roller unit.

[0103] Taking the transformation of the traditional two-roller crusher as an example, the new model standard frame base 1, bottom roller unit 41, standard upper frame beam 3 and feed unit 2 are selected for combination. Only the same specification of surfacing rollers are selected on the bottom roller unit 41 to complete the combination of the new two-roller crusher, and then the entire machine is replaced to complete the transformation.

[0104] Taking the transformation of a traditional four-roller crusher as an example, the new standard frame base 1, the bottom roller unit 41, the upper superimposed roller unit 42, the standard upper frame beam 3 and the feed unit 2 are combined to complete the combination of the new four-roller crusher, and then the entire machine can be replaced to complete the transformation.

[0105] Energy saving effect description:

[0106] The installed capacity of the traditional two-roll crusher is 90kW with two 45kW motor reducer units. The installed capacity of the traditional four-roll crusher is 145kW with one 90kW motor reducer unit and one 55kW motor reducer unit.

[0107] Taking the six-roller crusher as an example, the new model solves the problem of simplifying the process flow. Its installed capacity is: primary crushing 2×11kw, two groups totaling 22kw; coarse crushing 2×18.5kw, two groups totaling 37kw; fine crushing 2×37kw, two groups totaling 74kw; totaling 133kw.

[0108] The installed capacity of the traditional two-roll crusher is 90kW, and that of the four-roll crusher is 145kW, for a total of 235kW. The energy-saving characteristic of the new six-roll crusher's 133kW permanent magnet motor is 70% of that of an ordinary motor (AC motor), and the actual power consumption capacity is reduced by 101kW.

[0109] From the above description, it can be seen that the direct-connected direct-drive mode of the permanent magnet motor used in the present invention can improve the equipment integration, reduce the equipment footprint, improve the transmission efficiency, and significantly reduce the installed capacity. In addition, the energy-saving characteristics of the permanent magnet motor save nearly 50% of the energy consumption compared with the traditional motor traction, and the low-carbon and environmental protection indicators are more superior.

[0110] The double-roll crusher of the present invention is an integrated modular combined double-roll crusher with high safety, intelligent automation, energy saving, environmental protection and high efficiency.

[0111] Example 3:

[0112] On the basis of the above-mentioned embodiment 2, further, a torsion self-adaptive compensation device is provided on the upper and lower surfaces of the bearing seats at both ends of the roller shaft of the movable roller 11; the torsion here includes lateral and longitudinal offsets and twisting around the vertical direction, wherein the axial direction of the roller shaft 12 is lateral and the radial direction in the horizontal plane is longitudinal.

[0113] In order to solve the problems of the movable roller 11 of the traditional machine being subjected to eccentric load and the roller shaft being skewed due to the asynchronous oil cylinder, the oil cylinder through-core rod is torsionally twisted, and the piston rod and the through-core rod are bent, deformed, or even broken and damaged; in this embodiment, a torsion self-adaptive compensation device is provided above and below the bearing seats at both ends of the roller shaft of the movable roller 11, that is, a torsion self-adaptive compensation device is provided at the upper and lower parts of the bearing seat 9 at the motor direct-connected end of the roller shaft of the movable roller 11, and a torsion self-adaptive compensation device is provided at the upper and lower parts of the bearing seat 18 at the encoder end of the roller shaft of the movable roller 11; the upper one is the upper torsion self-adaptive compensation device 20 of the movable roller bearing seat, and the lower one is the lower torsion self-adaptive compensation device 19 of the movable roller bearing seat, as shown in FIG. Figure 13 and Figure 14 shown.

[0114] The upper torsion self-adaptive compensation device 20 of the movable roller bearing seat and the lower torsion self-adaptive compensation device 19 of the movable roller bearing seat have the same structure and are used to enable the corresponding bearing seats to have longitudinal, lateral and vertical torsional freedom, thereby enabling the roller shaft of the movable roller 11 to have corresponding freedom.

[0115] The torsional self-adaptive compensation device includes: a longitudinal compensation base plate 191, a longitudinally movable transverse guide plate 192 and a transversely movable rotational compensation plate 193; the relationship between the three is: the longitudinally movable transverse guide plate 192 can move longitudinally along the longitudinal compensation base plate 191, and the transversely movable rotational compensation plate 193 can move laterally along the longitudinally movable transverse guide plate 192 and rotate with the bearing seat at the corresponding position (that is, the bearing seat at the corresponding position can rotate relative to the transversely movable rotational compensation plate 193), and relative rotation compensation can be performed. Specifically: the longitudinal compensation base plate 191 is arranged on the frame, and a longitudinal linear slide is provided on the longitudinal compensation base plate 191. The longitudinally movable transverse guide plate 192 slides with the linear slide on the longitudinal compensation base plate 191 and can move longitudinally relative to the longitudinal compensation plate 191; the longitudinally movable transverse guide plate 192 is provided with a transverse linear slide, and the transversely movable rotational compensation plate 193 slides with the linear slide on the longitudinally movable transverse guide plate 192 and can move transversely relative to the longitudinally movable transverse guide plate 192; the transversely movable rotational compensation plate 193 rotates with the bearing seat at the corresponding position, and the direction of the rotation axis is along the vertical direction. The bearing seat can rotate around the vertical direction relative to the transversely movable rotational compensation plate 193.

[0116] The self-adaptive compensation action of the upper torsion self-adaptive compensation device 20 of the movable roller bearing seat is the same as the self-adaptive compensation action of the lower torsion self-adaptive compensation device 19 of the movable roller bearing seat.

[0117] Note: The fixed roller 10 is not provided with a bearing seat upper / lower torsion self-adaptive compensation device.

[0118] The roller unit 4 also includes a roller gap control pair type synchronous cylinder device 22, which realizes roller gap control through cylinder B221 and cylinder A222 (both are paired volumetric synchronous cylinders, respectively connected to the bearing seats at both ends of the roller shaft of the active roller 11).

[0119] like Figure 15 As shown, in this example, further, the cylinder heads of the cylinder A222 and the cylinder B221 (both are synchronous cylinders) in the roll gap control unit 22 are respectively hinged to the cylinder bracket 224, and the cylinder bracket 224 is installed on the pillow seat 225, and the pillow seat 225 is a pillow seat for connecting the cylinder and the frame; the piston rods of the cylinder B221 and the cylinder A222 are respectively hinged to the spherical seat 226 at the corresponding position of the active roller 11; that is, the synchronous cylinder in the roll gap control group synchronous cylinder device 22 is connected to the main frame frame through the pillow seat 225, and the connection between the piston rod and the bearing seat adopts an articulated method, which can realize the self-adaptation of the working center of the bearing seat of the active roller 11, and completely solve the awkward state caused by the active roller 11 being subjected to unbalanced load and the cylinder being out of sync, thereby eliminating the frequent equipment failures such as bending and breaking of the piston rod and the core rod, reducing the equipment damage rate and reducing the operating cost.

[0120] In addition, this embodiment changes the rough clearance matching method of the traditional model for convenient assembly of the bearing seats at both ends of the fixed roller 10 and the movable roller 11 roller shaft 12 and the frame guide rail, and adopts the matching method of the gap adjustment wedge block 23, so that the gap between the bearing seat and the frame guide rail becomes adjustable, and it is more convenient to install the large and heavy roller shaft assembly into the frame guide rail. At the same time, because the upper and lower clearances of the bearing seat can be adjusted to the optimal state, the up and down jumping of the roller shaft when working with load is reduced, thereby reducing the vibration and noise of the equipment.

[0121] like Figure 13 As shown, taking the movable roller 11 as an example, the top of the bearing seats at both ends of the roller shaft 12 of the movable roller 11 is provided with gap adjusting wedge blocks 23, and the top of the bearing seat is matched with the frame guide rail through the gap adjusting wedge blocks 23. The gap adjusting wedge blocks 23 slide longitudinally relative to the top of the bearing seat, and the gap between the bearing seat and the frame guide rail can be adjusted by the longitudinal position of the gap adjusting wedge blocks 23; it can be understood that: when the movable roller 11 is provided with a bearing seat torsional self-adaptive compensation device, the gap adjusting wedge blocks 23 are arranged on the top of the torsional self-adaptive compensation device 20 on the bearing seat of the movable roller.

[0122] Example 4:

[0123] On the basis of the above-mentioned embodiments 1 to 3, the integrated modular combined roller crusher is further optimized as follows.

[0124] When the roller unit 4 is used for fine crushing, such as the bottom roller unit 41 in a four-roller crusher and a six-roller crusher, the rollers for fine crushing are smooth rollers with small roller gaps, and higher requirements are placed on the roller surface. Therefore, both the movable roller 11 and the fixed roller 10 of the bottom roller unit 41 for fine crushing are provided with an efficient turning device 16 for repairing roller surface wear, which can efficiently detect and turn the roller surface.

[0125] First, the axial direction of the roller shaft in the roller unit 4 is set as the Y direction, and the radial direction in the horizontal plane is set as the X direction.

[0126] Roller surface wear repair high-efficiency turning device 16 uses turning to repair the roller surface, such as Figure 16 As shown, the high-efficiency turning device 16 for repairing worn roller surfaces is mounted on the machine frames on both sides of the bottom roller unit 41 and includes a mounting frame 161, a Y-axis feed unit supported on the mounting frame 161, an X-axis roller surface laser detection element 168, an X-axis tool table feed carriage 169, an L-axis carriage 170, a Y-axis position laser detection element 171, and a cutting unit. The mounting frame 161 can be mounted on the machine frame using a quick-release crossbeam.

[0127] The X-axis roller surface laser detection element 168 is a roller surface detection sensor used to detect the radial height of the roller surface to determine the location requiring turning repair. The X-axis roller surface laser detection element 168 is a non-contact laser measurement transmitter that uses a non-contact method to detect roller surface height.

[0128] As an example, the X-axis roller surface laser detection element 168 is used to detect the axial and circumferential concave and convex positions of the roller surface and feed the detection results back to the measurement and control unit. The measurement and control unit analyzes the positions that need to be cut and repaired based on the detection results (turning high instead of low, that is, cutting the protruding positions on the roller surface).

[0129] The Y-direction feed unit uses a screw-nut assembly to convert the rotation of the Y-direction servo motor 165 into linear motion, driving the X-direction roller surface laser detection element 168 to move along the Y-direction to detect the roller surface at different axial positions (it can be understood that by rotating the roller, different circumferential positions of the roller surface are detected); at the same time, the Y-direction feed unit is also used to drive the cutting unit to move along the Y-direction to perform cutting and repairing at different axial positions (it can be understood that by rotating the roller, different circumferential positions of the roller surface are cut and repaired).

[0130] As an example, the Y-direction feed unit includes a Y-direction lead screw 164 arranged along the Y-direction on the mounting frame 161, a Y-direction lead screw nut 163 threadedly engaged with the Y-direction lead screw 164 (the Y-direction lead screw 164 and the Y-direction lead screw nut 163 form a ball screw), a Y-direction servo motor 165 arranged at one end of the Y-direction lead screw 164 for driving the Y-direction lead screw 164 to rotate, and a plurality of Y-direction linear guide rails 166 arranged along the Y-direction on the mounting frame 161.

[0131] The L carriage 170 is slidably engaged with the mounting frame 161 via the Y-direction linear guide rail 166 , and the Y-direction lead screw nut 163 is connected to the axial L carriage 170 , and can drive the L carriage 170 to move along the Y-direction.

[0132] The roller surface detection sensor may be mounted on the L carriage 170 .

[0133] The X-axis tool table feed carriage 169 is mounted on the L-axis carriage 170 (specifically, on the horizontal portion of the L-axis carriage 170), slidably engaged with the L-axis carriage 170, and capable of moving relative to the L-axis carriage 170 in the X-axis. For example, the X-axis tool table feed carriage 169 also utilizes a screw-nut assembly to convert the rotation of the X-axis servo motor 162 into linear motion for feeding.

[0134] The cutting unit is installed on the X-axis tool table feed slide 169, and the cutting unit includes a cutting tool and a cutting tool clamping tool table 167 for mounting the cutting tool on the X-axis tool table feed slide 169; the cutting tool faces the roller surface and is fed in the X direction (radially cuts into the roller surface) under the action of the X-axis tool table feed slide 169 to perform cutting repair on the roller surface.

[0135] As an example, the X-axis roller surface laser detection element 168 is set on the X-axis tool table feed drag plate 169. At this time, the X-axis roller surface laser detection element 168 can also be used to monitor the feed amount of the X-axis tool table feed drag plate 169, thereby accurately controlling the feed amount.

[0136] The Y-axis roller surface laser detection element 171 is used to detect the Y-axis position of the L carriage 170 on the mounting bracket 161 .

[0137] It can be understood that the X-axis servo motor, Y-axis servo motor and cutting unit are all controlled by the measurement and control unit, and can perform efficient fast feed / working feed turning under the control of the measurement and control unit, reducing power consumption and improving roller surface repair efficiency.

[0138] Therefore, the roller surface wear repair device adopts advanced technical means such as servo motor, ball screw, linear guide, laser detection element, etc. to scan and read the numerical values (axial position value, radial size value) in the axial and radial directions of the roller surface, determine the position that needs cutting repair, and then adopt an efficient turning method of high feed and low fast feed (that is, cutting repair is performed at high places, and fast movement is made at low places when cutting repair is not required), so as to minimize the roller surface repair time and improve the repair efficiency.

[0139] Example 5:

[0140] On the basis of the above-mentioned embodiment 1 to embodiment 4, further:

[0141] The roll gap control group-type synchronous cylinder device 22 adopts the constant roll gap roll crusher control system based on electro-hydraulic servo control disclosed in patent 202011491959.1; the roll gap control between the movable roll 11 and the fixed roll 10 roll surface adopts the constant roll gap electro-hydraulic servo control technology of pressure and position closed loop and the double-hinged shaft group-type synchronous cylinder device with correction and unloading protection function (see Figure 15 The pair-type synchronous oil cylinder deflection correction and unloading unit 223 of the oil cylinder A222 in the pair-type synchronous oil cylinder device 22 of the roller gap control provides the necessary conditions for the real-time deflection correction and unloading protection control of the pair-type synchronous oil cylinder device.

[0142] On this basis, the rod end and cylinder head incorporate spherical surfaces and self-adaptive hinges, completely eliminating the torsional strain caused by roller torsion on the cylinder rod end, ensuring proper cylinder operation and preventing damage. This system also ensures zero contact between the two roller surfaces in all conditions (such as tapered roller ends), ensuring parallel zero contact between the two roller surfaces. The roller gap is controlled by an electro-hydraulic servo closed-loop system under the pull-back action of the paired synchronous cylinders, enabling absolute setting of the gap. This replaces the traditional initial pad gap setting method, ensuring a consistent relationship between the gap and the crushed product size, making it easier and more accurate to obtain the optimal process value for the crushing roller gap, and increasing product qualification by nearly 20%. This system also lays the foundation for subsequent fuel crushing output size detection and large-scale closed-loop control for setting and adjusting the gap for each crushing unit. Furthermore, it enables intelligent remote automatic control.

[0143] Example 6:

[0144] In this embodiment, the feeding unit 2 adopts the uniform material distribution device for the feeding port of the roller crusher disclosed in Patent 202321889434.2; an "uniform material distribution device for the feeding port" is added at the feeding port of the upper crossbeam of the crusher to maximize the uniform distribution of the feeding, reduce the equipment overload and uneven wear of the roller surface caused by uneven material dropping, increase the service life of the roller skin by 2 to 3 times, effectively reduce the replacement frequency of the roller shaft, improve the utilization rate of the equipment, and reduce the operating cost of the equipment.

[0145] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated modular combined roller crusher, characterized in that: include: A frame base (1) and one or more roller units (4) stacked on the frame base (1) in a height direction; The roller unit comprises: a fixed roller (10), a motor A (6) directly connected to the fixed roller (10), a movable roller (11), and a motor B (13) directly connected to the movable roller; The motor A (6) and the motor B (13) are both flange-type direct-connected direct-drive permanent magnet motors; The motor housing direct-connection flange (7) of the motor A (6) is directly connected to the motor direct-connection end bearing seat at the corresponding end of the roller shaft (12) of the fixed roller (10), and the power output end of the motor A (6) is directly connected to the roller shaft of the fixed roller (10) through a coupling; The motor housing direct-connection flange (7) of the motor B (13) is directly connected to the motor direct-connection end bearing seat at the corresponding end of the roller shaft (12) of the movable roller (11), and the power output end of the motor B (13) is directly connected to the roller shaft (12) of the movable roller (11) through a coupling.

2. The integrated modular combined roller crusher according to claim 1, characterized in that: The roller unit (4) is mounted on the frame base (1) via a frame body; An upper frame crossbeam (3) is detachably mounted on the top of the frame, and a feeding unit (2) is provided on the upper frame crossbeam (3); Flange connecting plates are symmetrically provided on two opposite sides of the frame body for use in the expansion and assembly of the roller units.

3. The integrated modular combined roller crusher according to claim 1, characterized in that: When there is only one pair of roller units (4), a two-roller crusher is formed; When two of the roller units (4) are integrated, a four-roller crusher is formed, wherein the two roller units (4) are stacked up and supported on the frame base (1); wherein the bottom roller unit (41) located at the bottom is used for fine crushing; and the upper stacked roller unit (42) located at the top is used for coarse crushing; When three of the roller units (4) are integrated, a six-roller crusher is formed; the three roller units (4) are stacked up and down and supported on the frame base (1); the upper stacked roller unit (42) located at the top is used as a primary crushing roller unit for completing the primary crushing process; the upper stacked roller unit (42) located in the middle is used for coarse crushing, and the bottom roller unit (41) located at the bottom is used for smooth roller fine crushing.

4. The integrated modular combined roller crusher according to any one of claims 1 to 3, characterized in that: Torsion self-adaptive compensation devices are provided on the upper and lower parts of the bearing seats at both ends of the roller shaft of the movable roller (11); The axial direction of the roller is the horizontal direction, and the radial direction in the horizontal plane is the longitudinal direction; The torsion self-adaptive compensation device comprises: a longitudinal compensation base plate (191), a longitudinally movable transverse guide plate (192) and a transversely movable rotation compensation plate (193); The longitudinal compensation base plate (191) is arranged on the frame, and the longitudinal movable transverse guide rail plate (192) is slidably matched with the longitudinal compensation base plate (191) and can move longitudinally relative to the longitudinal compensation plate (191); The transversely movable rotation compensation plate (193) is in sliding cooperation with the longitudinally movable transverse guide plate (192) and is capable of transversely moving relative to the longitudinally movable transverse guide plate (192); The transversely movable rotational compensation plate (193) is rotationally matched with a bearing seat at a corresponding position, and the direction of the rotation axis is along the vertical direction. The bearing seat can rotate around the vertical direction relative to the transversely movable rotational compensation plate (193).

5. The integrated modular combined roller crusher according to claim 4, characterized in that: The cylinder heads of the two oil cylinders of the roller gap control group paired synchronous oil cylinder device (22) in the roller crusher are respectively hinged to the oil cylinder bracket (224), and the piston rods of the two oil cylinders are respectively hinged to the spherical seats (226) at the corresponding positions of the movable roller (11).

6. The integrated modular combined roller crusher according to claim 1-3, characterized in that: The tops of the bearing seats at both ends of the roller shafts of the fixed roller (10) and the movable roller (11) are respectively matched with the frame guide rails through gap adjustment wedge blocks (23), and the gap between the bearing seat and the frame guide rail is adjusted through the gap adjustment wedge blocks (23).

7. The integrated modular combined roller crusher according to claim 3, characterized in that: When the pair of roller units (4) is used for fine crushing, the movable roller (11) and the fixed roller (10) are both provided with a roller surface wear efficient repair turning device (16); the roller surface wear efficient repair turning device (16) repairs the roller surface by turning.

8. The integrated modular combined roller crusher according to claim 7, characterized in that: The roller surface wear efficient repair turning device (16) is installed on the frames on both sides of the bottom roller unit (41), and includes: a mounting frame (161), a Y-direction feeding unit, a cutting tool clamping table (167), an X-direction roller surface laser detection element (168), an X-direction table feeding carriage (169), an L carriage (170), and a Y-direction position laser detection element (171); The axial direction of the roller shaft in the roller unit (4) is the Y direction, and the radial direction in the horizontal plane is the X direction; The X-axis roller surface laser detection element (168) is used to detect the radial height of the roller surface to determine the position that needs turning and repairing; The L-shaped carriage (170) is in sliding cooperation with the mounting frame (161), and can be moved relative to the mounting frame (161) along the Y direction under the drive of the Y-direction feeding unit, thereby driving the X-direction roller surface laser detection element (168) to move along the Y direction to detect the radial height of the roller surface at different axial positions; The X-direction tool table feed carriage (169) is mounted on the L carriage (170), is slidably matched with the L carriage (170), and can move relative to the L carriage (170) along the X-direction; The cutting tool clamping table (167) is mounted on the X-axis table feed carriage (169); the cutting tool in the cutting tool clamping table (167) faces the roller surface and is fed in the X direction under the action of the X-axis table feed carriage (169) to perform turning repair on the roller surface; The X-axis roller surface laser detection element (168) is installed on the X-axis tool platform feed carriage (169) and is also used to monitor the feed amount of the X-axis tool platform feed carriage (169).

9. The integrated modular combined roller crusher according to claim 8, characterized in that: The Y-direction feeding unit comprises a Y-direction lead screw (164) arranged along the Y-direction on the mounting frame (161), a Y-direction lead screw nut (163) threadedly engaged with the Y-direction lead screw (164), a Y-direction servo motor (165) arranged at one end of the Y-direction lead screw (164) for driving the Y-direction lead screw (164) to rotate, and a plurality of Y-direction linear guide rails (166) arranged along the Y-direction on the mounting frame (161); The L carriage (170) is slidably matched with the mounting frame (161) via a Y-direction linear guide rail (166), and the Y-direction lead screw nut (163) is connected to the L carriage (170) to drive the L carriage (170) to move along the Y direction; The X-axis tool table feed carriage (169) also uses a ball screw to convert the rotation of the X-axis servo motor (162) into a linear motion feed mode.

10. The integrated modular combined roller crusher according to any one of claims 1 to 3, characterized in that: The roller gap control group paired synchronous oil cylinder device (22) in the roller crusher adopts a constant roller gap roller crusher control system based on an electro-hydraulic servo control pressure position closed loop; A uniform material distribution device is provided in the feeding unit (2) of the double-roll crusher.

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