High-efficiency special screening and pulling breaker

Abstract

The utility model relates to the technical field of breaker, disclose a kind of high-efficiency special screening pull break breaker, comprising: rack, feeding inlet, crushing mechanism and discharge port are sequentially arranged from top to bottom in rack, and at least one side in feeding inlet is rotatably provided with crushing counterattack plate, and crushing counterattack plate is used to carry out preliminary crushing to material, and crushing mechanism is used to carry out secondary crushing to material.The utility model improves the crushing efficiency of material by the mutual cooperation of crushing counterattack plate and crushing mechanism, thereby improves work efficiency, and greatly reduces crushing time.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a high-efficiency special screening and pulverizing crusher. Background Technology

[0002] A pulverizing crusher, also known as a toothed roller crusher, is a mechanical device that uses two relatively rotating toothed rollers to crush materials. It is mainly used for coarse, medium, and fine crushing of brittle materials such as coal, ore, limestone, and oil shale.

[0003] Most crushers on the market crush solid materials in a single operation, with a crushing ratio of 3 to 5. To improve crushing efficiency, the crushed material needs to be recycled and crushed multiple times, which reduces work efficiency and consumes too much crushing time. Utility Model Content

[0004] This application discloses a high-efficiency special screening and crushing machine to solve the problems of low single-pass crushing efficiency and excessive crushing time in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solution: A high-efficiency special screening and crushing machine includes: The frame contains, from top to bottom, a feed inlet, a crushing mechanism, and a discharge outlet. A crushing impact plate is rotatably installed on at least one side of the feed inlet. The crushing impact plate is used for the initial crushing of the material. The crushing mechanism is used to further crush materials.

[0006] Furthermore, the crushing mechanism includes two parallel driving shafts and driven shafts. The driving shaft is connected to multiple crushing power rollers along its axial direction, and the driven shaft is connected to multiple crushing non-power rollers along its axial direction. The multiple crushing power rollers and multiple crushing non-power rollers are arranged alternately.

[0007] Furthermore, the crushing power roller includes a crushing cone ring, a mounting cylinder, and a crushing cone; The outer wall of the crushing cone ring is evenly distributed with multiple mounting cylinders, and the crushing cones are installed on the mounting cylinders. The crushing cones are used to crush materials.

[0008] Furthermore, the mounting cylinder has a mounting hole, and a positioning part is formed between one end of the mounting hole and the crushing cone. The positioning part is used to position the installation of the crushing cone. A first connector is fitted onto the crushing cone inside the mounting hole. The first connector is used to position the crushing cone radially. A second connector is provided in the mounting hole and is connected to one end of the crushing cone. The second connector is used to position the crushing cone axially.

[0009] Furthermore, the positioning part includes a slot and a boss; The slot is opened at one end of the mounting hole, and the boss is connected to the crushing cone. The boss and the slot can be engaged to achieve the pre-positioning of the crushing cone and the mounting hole.

[0010] Furthermore, the mounting holes include a first shaft hole and a second shaft hole; The diameter of the first shaft hole is smaller than that of the second shaft hole. The crushing cone is inserted into the first shaft hole. A groove is provided at the end of the first shaft hole away from the second shaft hole. The first connecting piece is located in the first shaft hole, and the second connecting piece is located in the second shaft hole.

[0011] Furthermore, the crushing cone includes a crushing cone body and a connecting shaft; One end of the crushing cone is connected to a connecting shaft. A boss is installed on the end of the connecting shaft near the crushing cone, and an internal threaded hole is opened on the end of the connecting shaft away from the crushing cone. The connecting shaft can be inserted into the first shaft hole and extends to the connection between the first shaft hole and the second shaft hole.

[0012] Furthermore, a drive mechanism is provided on one side of the frame, which is connected to the drive shaft and is used to drive the drive shaft to rotate.

[0013] Furthermore, hydraulic tilting mechanisms are provided on both sides of the frame. These mechanisms are used to open the frame so that the internal structure of the frame can be inspected and repaired.

[0014] Furthermore, a retraction mechanism is provided between the driving shaft and the driven shaft. The retraction mechanism is used to adjust the retraction of the driven shaft when it encounters a hard object, so as to protect the equipment.

[0015] The technical solution adopted in this utility model can achieve the following beneficial effects: 1. This utility model improves the crushing efficiency of materials by combining the crushing impact plate and the crushing mechanism, thereby improving work efficiency and greatly reducing crushing time. 2. This utility model has stronger crushing capacity and higher crushing efficiency by adding a non-powered roller. The non-powered roller only passively participates in crushing when it needs to be crushed. Qualified materials are screened through the gap between the powered roller and the non-powered roller without being crushed, resulting in less over-crushing. 3. This utility model can control the precision of the output particle size (such as the pass rate, the proportion of fine particles and over-crushed particles) by adjusting the gap between the powered roller and the unpowered roller. 4. The equipment of this utility model has lower vibration, better stability, and is safer and more reliable. It can quickly respond to changes in working conditions or market particle size requirements and has a high degree of intelligence. 5. The equipment of this utility model has a compact overall structure, occupies a small area, and reduces energy consumption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic front cross-sectional view of the overall structure disclosed in some embodiments of this application; Figure 2 This is a schematic front view of the overall structure disclosed in some embodiments of this application; Figure 3 This is a schematic diagram of the overall three-dimensional structure disclosed in some embodiments of this application; Figure 4 This is a cross-sectional structural schematic diagram of the crushing power roller disclosed in some embodiments of this application; Figure 5 yes Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the structure of a crushing cone disclosed in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the crushing cone ring and mounting cylinder disclosed in some embodiments of this application; Figure 8 This is a three-dimensional structural schematic diagram of the crushing power roller disclosed in some embodiments of this application.

[0018] In the picture: 100 - Frame; 110 - Feed inlet; 111 - Crushing impact plate; 120 - Discharge outlet; 200 - Crushing mechanism; 210 - Driving shaft; 220 - Driven shaft; 230 - Crushing power roller; 231 - Crushing cone ring; 232 - Mounting cylinder; 233 - Crushing cone; 2331 - Crushing cone body; 2332 - Connecting shaft; 234 - Mounting hole; 2341 - First shaft hole; 2342 - Second shaft hole; 235 - Positioning part; 2351 - Slot; 2352 - Boss; 236 - First connecting piece; 237 - Second connecting piece; 2371 - Internal threaded hole; 2372 - Flat washer; 2373 - Spring washer; 238 - Groove; 240 - Crushing non-powered roller; 300 - Drive mechanism; 310 - Mounting base; 320 - Drive component; 330 - Reducer; 340 - First coupling; 350 - Second coupling; 400 - Hydraulic tilting mechanism; 410 - Inspection side door; 420 - Telescopic component; 500 - Crash Issue; 10-Inspection and observation door. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] The terms "first," "second," "third," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," "third," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] The utility model concept of this application is described here: During the crushing process, most crushers on the market crush solid materials in one go, with a crushing ratio of 3 to 5. In order to improve crushing efficiency, the crushed material needs to be recycled and crushed multiple times, which reduces work efficiency and consumes too much crushing time. Using multiple crushers will result in a large footprint and high energy consumption. Moreover, multiple crushing can easily cause over-crushing of materials, and it is impossible to selectively screen qualified materials while crushing them.

[0022] Based on this, the inventor provides a high-efficiency special screening and crushing machine, which improves crushing efficiency and working efficiency, greatly reduces crushing time, has a compact overall structure, occupies less space, reduces energy consumption, and completes selective screening of qualified materials during the crushing process, reducing over-crushing.

[0023] The following is in conjunction with the appendix Figures 1 to 8 This application provides a detailed description of a high-efficiency special screening, crushing, and pulverizing machine through specific embodiments and application scenarios.

[0024] Reference Figure 1A high-efficiency special screening and crushing machine includes: The frame 100 has a feed inlet 110, a crushing mechanism 200 and a discharge outlet 120 arranged sequentially from top to bottom inside the frame 100. Specifically, both the inlet 110 and the outlet 120 are funnel-shaped.

[0025] A crushing impact plate 111 is rotatably installed on at least one side of the feed inlet 110. The crushing impact plate 111 is used for preliminary crushing of the material. Specifically, an adjuster is installed on the side wall of the frame 100 corresponding to the crushing impact plate 111. This adjuster can be used to adjust the angle between the crushing impact plate 111 and the horizontal plane, control the feeding direction and the material distribution effect, so that the material can enter the crushing mechanism 200 evenly and can perform preliminary crushing on large materials. The crushing impact plate 111 has serrated protrusions that are beneficial for crushing. The serrated protrusions can bite and split the material. When the material falls and impacts, the serrated protrusions can effectively embed into the surface of the material to prevent it from sliding, so that the crushing force is more concentrated on the material, generating huge local stress, which makes it easier for the material to break (especially for brittle materials), greatly improving the efficiency of the first crushing. In this embodiment, there are two crushing impact plates 111, located on both sides above the crushing mechanism 200, and the two crushing impact plates 111 are set at different heights.

[0026] Reference Figure 2 and Figure 3 A maintenance observation window 10 is installed on the side wall of the frame 100 corresponding to the feed inlet 110. The staff can observe the condition of the materials and equipment through the maintenance observation window 10, and can also open the maintenance observation window 10 to inspect or replace the crushing impact plate 111.

[0027] The crushing mechanism 200 is used to further crush the material.

[0028] Specifically, the crushing ratio of the crushing mechanism 200 is between 5 and 6.

[0029] This invention improves the crushing efficiency of materials by cooperating with the crushing impact plate 111 and the crushing mechanism 200, thereby increasing work efficiency and greatly reducing crushing time.

[0030] Among them, reference Figures 1 to 3 In this embodiment, hydraulic tilting mechanisms 400 are provided on both sides of the frame 100. The hydraulic tilting mechanisms 400 are used to open the frame 100 so as to inspect the internal structure of the frame 100.

[0031] Specifically, the hydraulic tilting mechanism 400 can completely expose the internal structure of the frame 100, eliminating the problems of obstructed vision and insufficient operating space during maintenance. Maintenance personnel can directly observe the wear and connection status of the crushing mechanism 200, and can also easily access the internal core components, providing ample operating space for maintenance actions (such as bolt tightening, component disassembly and replacement, and oil cleaning); significantly shortening maintenance time and increasing the effective operating time of the equipment (reducing downtime costs).

[0032] Reference Figures 1 to 3 The hydraulic tilting mechanism 400 includes maintenance side doors 410 rotatably opened on both sides of the frame 100. One end of the maintenance side door 410 is hinged to a telescopic member 420, and the other end of the telescopic member 420 is hinged to an extension section at the lower part of the maintenance side door 410. Preferably, the telescopic member 420 is a hydraulic cylinder, the specific structure and working principle of which are common knowledge and will not be described in detail here. The maintenance side door 410 is provided with multiple maintenance observation windows 10, which facilitates the staff to observe the interior and perform maintenance with a small workload. Traditional disassembly requires heavy equipment such as cranes and jacks, and the labor intensity is extremely high when manually handling and aligning. The hydraulic tilting mechanism 400 realizes the tilting of the frame through automatic drive, eliminating the need for manual direct support or operation of heavy components, and greatly reducing the physical consumption of maintenance personnel.

[0033] Reference Figure 1 In this embodiment, the crushing mechanism 200 includes two parallel active rotating shafts 210 and driven rotating shafts 220. The active rotating shaft 210 is connected to a plurality of crushing power rollers 230 along its axial direction, and the driven rotating shaft 220 is connected to a plurality of crushing non-powered rollers 240 along its axial direction. The plurality of crushing power rollers 230 and the plurality of crushing non-powered rollers 240 are arranged alternately.

[0034] Specifically, the active rotating shaft 210 and the driven rotating shaft 220 are horizontally arranged. Both ends of the active and driven rotating shafts 210 and 220 are connected to the frame 100 via bearing seats, and the active and driven rotating shafts 210 and 220 are rotatably connected to the bearing seats. The staggered arrangement of the crushing powered roller 230 and the crushing unpowered roller 240 forms a crushing space similar to shearing and compression. When material enters the crushing mechanism 200, the active rotating shaft 210 drives the crushing powered roller 230 to rotate. Through the relative movement with the crushing unpowered roller 240 on the driven rotating shaft 220, shearing, compression, and tearing effects are generated on the material, adapting to the processing of large-diameter materials. The crushing unpowered roller 240 is only activated when crushing is required. The crushing process involves active participation, allowing qualified materials to pass directly through the gap between the crushing power rollers 230 and the crushing non-powered rollers 240 without being crushed, thus reducing over-crushing. The crushing non-powered rollers 240 rotate passively due to the material's movement or friction with the crushing power rollers 230, requiring no additional power and reducing power consumption. In this embodiment, the crushing power rollers 230 are toothed cone type, and the crushing non-powered rollers 240 are toothed cap type or toothed plate type. The active rotating shaft 210 is a fixed shaft, and the driven rotating shaft 220 is a moving shaft. By moving the driven rotating shaft 220, the distance between the crushing power rollers 230 and the crushing non-powered rollers 240 is adjusted, thereby controlling the material particle size.

[0035] Large and medium-sized materials enter the frame 100 together. The large materials are initially crushed into medium-sized materials by the crushing impact plate 111. Then, together with the medium-sized materials, they are crushed by the crushing powered roller 230 and the crushing unpowered roller 240. The crushing unpowered roller 240 only participates in crushing passively when crushing is needed, and plays a screening role at other times. The frame 100 achieves two-stage crushing of materials through the combination of crushing impact plate 111 + powered roller and unpowered roller. Qualified materials are not crushed and are directly screened through the gap between the powered roller and the unpowered roller, resulting in less over-crushing.

[0036] The parallel arrangement of the dual rotating shafts, combined with the staggered rollers, can form a stable clamping and crushing channel for the material, reducing the bouncing or deviation of the material during the crushing process, reducing equipment vibration and noise, reducing energy consumption, and improving the overall crushing ratio and processing efficiency of the equipment.

[0037] The crushing mechanism 200 of this equipment adopts a pair of opposing rotating differential crushing rollers. At the moment the material enters the crushing chamber, a composite stress field combining compression, shearing, rolling and stretching is constructed. It makes full use of the characteristic that the tensile strength of the material is much lower than its compressive strength. Through differential motion, tensile stress is actively applied, forcing the material to fracture along its internal grain boundaries and natural cracks and other weak surfaces. This achieves selective and efficient crushing of the "optimal crushing surface", which is both energy-saving and reduces over-crushing. At the same time, relative motion is generated at the meshing point of the two rollers to achieve automatic mutual cleaning and prevent sticking.

[0038] Among them, reference Figure 2 and Figure 3 In this embodiment, a drive mechanism 300 is provided on one side of the frame 100. The drive mechanism 300 is connected to the active rotating shaft 210 and is used to drive the active rotating shaft 210 to rotate.

[0039] Specifically, refer to Figure 3 The drive mechanism 300 includes a mounting base 310 disposed on one side of the frame 100. The mounting base 310 can be installed on the ground. A drive component 320 is mounted on one side of the top of the mounting base 310, and a reducer 330 is mounted on the other side of the top of the mounting base 310. The output shaft of the drive component 320 is connected to the reducer 330 through a first coupling 340, and the output shaft of the reducer 330 is connected to the drive shaft 210 through a second coupling 350. In this embodiment, the drive component 320 is preferably an electric motor. The specific structure and working principle of the electric motor and the reducer 330 are common knowledge and therefore will not be described in detail here.

[0040] The drive unit 320 transmits power to the reducer 330 through the first coupling 340, and the reducer 330 transmits power to the drive shaft 210 through the second coupling 350, thereby driving the drive shaft 210 to rotate, which in turn drives the crushing power roller 230 to rotate, thus realizing the crushing of materials.

[0041] Reference Figure 3 In this embodiment, a retraction mechanism 500 is provided between the active rotating shaft 210 and the driven rotating shaft 220. The retraction mechanism 500 is used to adjust the retraction of the driven rotating shaft 220 when it encounters a hard object, so as to protect the equipment.

[0042] Specifically, a retraction mechanism 500 is provided between the bearing housing of the driving shaft 210 and the bearing housing of the driven shaft 220. Two sets of retraction mechanisms 500 are provided, located between the two ends of the driving shaft 210 and the two ends of the driven shaft 220, respectively. The retraction mechanism 500 can be a traditional hydraulic retraction device or a mechanical safety device. A hydraulic retraction device controls the on / off state of power or adjusts the position of components through a hydraulic system. A mechanical safety device absorbs impact force through mechanical deformation, such as using the elastic deformation of a disc spring assembly to absorb overload impacts, protecting the core equipment. The specific structure and working principle of the two retraction mechanisms 500 are common knowledge and will not be described in detail here. In this embodiment, the retraction mechanism 500 adopts a mechanical safety device. The movement of the active rotating shaft 210 and the driven rotating shaft 220 can be achieved by the movement of the bearing seat. The distance between the powered roller and the unpowered roller can be adjusted by adjusting the retraction force of the retraction mechanism 500. The movement of the driven rotating shaft 220 is achieved by the sliding guide of the slider on the bearing seat and the sliding guide of the groove on the fixed plate installed on the side wall of the frame 100.

[0043] The retraction mechanism 500 adjusts the distance between the crushing power roller 230 and the crushing non-powered roller 240, allowing larger or harder materials to pass smoothly. This enables the power roller and non-powered roller to retract and reset, protecting the equipment from damage. It is safe and reliable, and the equipment does not need to be stopped, greatly reducing the number of unplanned downtimes, ensuring production continuity, and reducing economic losses caused by downtime.

[0044] Reference Figure 4 and Figure 8 In this embodiment, the crushing power roller 230 includes a crushing cone ring 231, a mounting cylinder 232, and a crushing cone 233; Multiple mounting cylinders 232 are evenly distributed around the outer wall of the crushing cone ring 231. A crushing cone 233 is mounted on the mounting cylinder 232 and is used to crush materials.

[0045] Specifically, the mounting cylinder 232 is welded or integrally formed onto the crushing cone ring 231; the number of mounting cylinders 232 is 4-12, and in this embodiment, the number of mounting cylinders 232 is 6; the multiple mounting cylinders 232 evenly distributed around the circumference of the crushing cone ring 231 form an annular crushing area, improving crushing efficiency and processing capacity; the crushing cone ring 231 is sleeved on the active rotating shaft 210, ensuring a unified power source and stable power transmission; during maintenance, the crushing cone 233 on a single mounting cylinder 232 can be disassembled without removing the entire crushing cone ring 231, enabling partial replacement and maintenance, reducing downtime and maintenance time and costs.

[0046] Reference Figure 5 and Figure 7 In this embodiment, the mounting cylinder 232 is provided with a mounting hole 234, and a positioning part 235 is formed between one end of the mounting hole 234 and the crushing cone 233. The positioning part 235 is used to position the installation of the crushing cone 233. Specifically, the mounting cylinder 232 has a through mounting hole 234; the initial position of the crushing cone 233 is pre-positioned by the positioning part 235, which takes into account both positioning accuracy and torque bearing capacity, and is safe and reliable.

[0047] Reference Figure 5 and Figure 6 A first connector 236 is provided inside the mounting hole 234 and sleeved on the crushing cone 233. The first connector 236 is used to position the crushing cone 233 radially. Specifically, the first connector 236 provides radial constraint to the crushing cone 233, further preventing the crushing cone 233 from loosening.

[0048] Reference Figure 5 and Figure 6A second connector 237 is provided in the mounting hole 234 and is connected to one end of the crushing cone 233. The second connector 237 is used to position the crushing cone 233 axially.

[0049] Specifically, the second connector 237 is connected to the end of the crushing cone 233 to form axial positioning, thereby achieving a further anti-loosening effect.

[0050] By forming a three-dimensional spatial positioning through radial and axial constraints, the overall displacement error of the crushing cone 233 can be controlled within 0.2mm, which is significantly better than the 0.5mm error level of the traditional single interference fit. Furthermore, the first connecting piece 236 and the second connecting piece 237 can be disassembled independently without replacing the entire mounting hole assembly, thus improving maintenance efficiency.

[0051] Reference Figure 5 and Figure 8 In this embodiment, the positioning part 235 includes a slot 2351 and a boss 2352; The slot 2351 is opened at one end of the mounting hole 234, and the boss 2352 is connected to the crushing cone 233. The boss 2352 and the slot 2351 can be engaged to achieve the pre-positioning of the crushing cone 233 and the mounting hole 234.

[0052] Specifically, the shapes of the slot 2351 and the boss 2352 are adapted to each other. In this embodiment, the slot 2351 and the boss 2352 are cross-shaped, and the slot 2351 and the boss 2352 are tapered, which facilitates the self-locking of the crushing cone 233 and the mounting hole 234, taking into account both positioning accuracy and torque bearing capacity, ensuring safety and reliability, and preventing the crushing cone 233 from loosening. The slot 2351 is opened on the mounting cylinder 232 at one end of the mounting hole 234. Through the snap-fit ​​cooperation between the boss 2352 and the slot 2351, the time for manual calibration and alignment is saved, ensuring the initial assembly accuracy, avoiding the possibility that the crushing cone 233 may undergo radial offset or circumferential torsion due to the lack of a reference when installing the first connecting piece 236 and the second connecting piece 237 later. It also enhances the stability during the assembly process, reduces the risk of component damage, reduces equipment maintenance costs, and extends the service life of the overall structure.

[0053] Reference Figure 5 and Figure 7 In this embodiment, the mounting hole 234 includes a first shaft hole 2341 and a second shaft hole 2342; The diameter of the first shaft hole 2341 is smaller than the diameter of the second shaft hole 2342. The crushing cone 233 is inserted into the first shaft hole 2341. A slot 2351 is provided at the end of the first shaft hole 2341 away from the second shaft hole 2342. The first connecting piece 236 is located in the first shaft hole 2341, and the second connecting piece 237 is located in the second shaft hole 2342.

[0054] Specifically, the mounting hole 234 is a stepped hole because the diameter of the first shaft hole 2341 is smaller than that of the second shaft hole 2342; and the first shaft hole 2341 is also a stepped hole. The first connecting piece 236 is sleeved on the end of the crushing cone 233, and the first connecting piece 236 contacts the step of the first shaft hole 2341, which facilitates the positioning of the first connecting piece 236 for installation; the second connecting piece 237 contacts the step at the connection between the first shaft hole 2341 and the second shaft hole 2342, which facilitates the positioning of the second connecting piece 237 for installation, improves the locking force of the second connecting piece 237, ensures stable transmission of axial preload, and facilitates disassembly and replacement.

[0055] By providing a tight-fitting mounting reference for the crushing cone 233 through the first shaft hole 2341, and reserving radial expansion space for the first connecting piece 236, the radial fixing function is ensured to be effective, and radial stress can be effectively dispersed to prevent the first shaft hole 2341 from wearing or deforming due to excessive local stress. A groove 2351 is provided at the end of the first shaft hole 2341 away from the second shaft hole 2342, which engages with the boss 2352 of the crushing cone 233, further restricting the radial movement of the crushing cone 233 and ensuring positioning accuracy during crushing operations. The second shaft hole 2342 prevents interference between the second connecting piece 237 and the inner wall of the second shaft hole 2342, and also provides space for the second connecting piece 236. The tightening / removal operation of component 237 provides ample operating space for tools (such as wrenches), and ensures that the second connector 237 only bears axial preload without bearing radial load, significantly extending the service life of the second connector 237. The hierarchical structure of the first shaft hole 2341 and the second shaft hole 2342 naturally forms an assembly logic of installing radial components first and then axial components, which can avoid assembly sequence errors and improve assembly efficiency. Furthermore, since the first shaft hole 2341 and the second shaft hole 2342 are functionally separated, it is not necessary to touch the radial mating part of the first connector 236 and the crushing cone 233 when disassembling the second connector 237, thus avoiding damage to the radial positioning structure during disassembly.

[0056] Reference Figure 5 and Figure 6 In this embodiment, the first connector 236 is an expansion coupling sleeve, and the first connector 236 is located between the crushing cone 233 and the mounting hole 234.

[0057] Specifically, the expansion sleeve (also known as an expansion sleeve) is a mechanical part that achieves a tight connection between the connected part and the base by causing radial elastic deformation of the inner and outer rings through axial force. Based on the pre-positioning of the positioning part 235, it rigidly connects the crushing cone 233 and the first shaft hole 2341 through uniform radial pressure, forming a clearance-free fit and completely restricting the radial displacement and circumferential rotation of the crushing cone 233. The expansion sleeve achieves surface contact through overall radial expansion, which can evenly distribute the pressure on the mating surface of the crushing cone 233 and the first shaft hole 2341, extending the service life of the crushing cone 233 by 20%-30%. Furthermore, the expansion sleeve achieves tightening by providing axial force through bolts and other fasteners, eliminating the need for complex processes such as heating, cooling, or heavy-duty pressing, making installation and disassembly convenient and significantly improving efficiency. This improves maintenance efficiency. The pre-positioning of the positioning part 235 provides a precise installation reference for the expansion coupling sleeve, ensuring that the expansion coupling sleeve can be evenly fitted between the crushing cone 233 and the first shaft hole 2341, avoiding uneven force on the expansion sleeve due to initial position offset. The rigid fixation of the expansion coupling sleeve can further lock the fit of the positioning part, preventing the slot 2351 and the boss 2352 from loosening or wearing under vibration conditions. This synergistic design of pre-positioning + precision fixing enables the crushing cone 233 to maintain stable positional accuracy under high-speed rotation and severe vibration conditions, significantly improving the operational reliability of the equipment.

[0058] Reference Figure 5 In this embodiment, one end of the crushing cone 233 is provided with an internal threaded hole 2371, and the second connecting piece 237 is threadedly engaged with the internal threaded hole 2371 to position the crushing cone 233 axially.

[0059] Specifically, during crushing operations, the crushing cone 233 is subjected not only to radial impact loads but also to axial movement due to material compression and equipment vibration. The second connecting piece 237 engages with the internal threaded hole 2371, directly restricting the axial movement of the crushing cone 233 through the self-locking characteristic and pre-tightening force of the thread. Simultaneously, it forms a three-dimensional constraint with the radial positioning of the tightening sleeve, ensuring the stability of the crushing cone 233's position in three-dimensional space. The second connecting piece 237 is easy to install and operate, reducing maintenance costs. During tightening, the axial position of the crushing cone 233 can be finely adjusted by controlling the thread insertion depth, with an accuracy of 0.1-0.2mm. This fine-tuning capability can compensate for pre-positioning issues. The expansion sleeve addresses potential axial errors in the assembly, ensuring the working end face of the crushing cone 233 is in the optimal working position, thereby guaranteeing stable crushing gaps and improving the uniformity of crushed product particle size. The expansion sleeve achieves a rigid connection between the crushing cone 233 and the first shaft hole 2341 through radial surface contact, while the threaded second connector 237 pulls the crushing cone 233 axially, forming a gapless, all-around rigid whole between the crushing cone 233, the expansion sleeve, and the mounting hole 234. This not only fully constrains the displacement freedom of the crushing cone 233 and improves the operational stability of the equipment under impact and vibration conditions, but also reduces processing and maintenance costs, demonstrating significant technical practicality and industrial application value.

[0060] Reference Figure 5 and Figure 6 In this embodiment, the crushing cone 233 includes a crushing cone body 2331 and a connecting shaft 2332; One end of the crushing cone 2331 is connected to a connecting shaft 2332. A boss 2352 is installed on the end of the connecting shaft 2332 near the crushing cone 2331. An internal threaded hole 2371 is opened on the end of the connecting shaft 2332 away from the crushing cone 2331. The connecting shaft 2332 can be inserted into the first shaft hole 2341 and extends to the connection between the first shaft hole 2341 and the second shaft hole 2342.

[0061] Specifically, the crushing cone 2331 and the connecting shaft 2332 are integrally formed; the diameter of the end of the connecting shaft 2332 away from the crushing cone 2331 is smaller than the diameter of the rest of the connecting shaft 2332, which facilitates the installation of the expansion coupling sleeve; the diameter of the connecting shaft 2332 is slightly smaller than the first shaft hole 2341, which facilitates the installation of the connecting shaft 2332 into the first shaft hole 2341.

[0062] The crushing cone 2331 is in direct contact with solid materials and bears crushing loads such as compression and impact. It is the core actuator for realizing the crushing function of the equipment. The connecting shaft 2332 realizes the radial positioning of the crushing cone 233 in the first shaft hole 2341. At the same time, it provides axial space for the subsequent assembly of the second connecting piece 237, ensuring that the second connecting piece 237 can cooperate with the internal thread hole 2371 of the connecting shaft 2332 in the second shaft hole 2342 to form a complete axial fixing chain. Furthermore, the connecting shaft 2332 evenly transmits the crushing load borne by the crushing cone 2331 during operation to the mounting cylinder 232, avoiding load concentration that could lead to local structural damage.

[0063] Reference Figure 5 and Figure 6 In this embodiment, the second connector 237 is a bolt.

[0064] Specifically, the second connector 237 is a wing bolt, countersunk bolt, or socket head cap bolt. When the second connector 237 is a wing bolt with a handle, it can be operated without tools, achieving quick disassembly. Through the cooperation between the bolt and the internal threaded hole 2371, it completely resists the axial movement, impact load, and vibration interference generated during crushing operations. The stable preload can eliminate the axial clearance between the connecting shaft 2332 and the expansion sleeve and mounting hole 234, further improving the overall positioning accuracy. The assembly and maintenance efficiency is excellent, making it suitable for industrial mass production and on-site maintenance. Moreover, the radial rigidity constraint of the expansion sleeve can prevent the connecting shaft 2332 from deflecting when subjected to axial force, avoiding local wear of the thread profile due to unilateral force on the bolt, and extending the service life of the bolt.

[0065] Reference Figure 5 and Figure 6 In this embodiment, a flat washer 2372 and a spring washer 2373 are sequentially provided between one end of the crushing cone 233 and the second connecting member 237.

[0066] Specifically, the flat washer 2372 makes step contact with the connection between the first shaft hole 2341 and the second shaft hole 2342. A spring washer 2373 is placed at the end of the flat washer 2372 away from the connecting shaft 2332. The flat washer 2372 and the spring washer 2373 are fitted onto the outside of the bolt stud. By setting the flat washer 2372, the inherent defect of direct contact between the bolt and the connecting shaft 2332 is solved. When the bolt head is in direct contact with the end face of the connecting shaft 2332, the axial pressure during bolt tightening will be concentrated locally due to the small contact area, which can easily lead to indentation, deformation or even damage to the end face of the connecting shaft 2332. The flat washer 2372 increases the contact area and disperses the concentrated pressure to a larger area, avoiding damage to the end face of the connecting shaft 2332 due to excessive local stress, extending the service life of the crushing cone 233. In addition, the flat washer 2372 can fill the small end face gap, so that the preload of the bolt is evenly transmitted to the connecting shaft 2332. On the connecting shaft 2332, the reliability of axial positioning is ensured. By setting a spring washer 2373, a continuous anti-loosening preload is provided to resist vibration and loosening. When crushing materials, the crushing cone 2331 will generate strong vibration and impact. This vibration can easily cause gaps in the threaded fit between the bolt and the internal threaded hole 2371, leading to loosening. After the bolt is tightened, the spring washer 2373 will undergo elastic deformation, generating a continuous radial elastic force, so that the bolt thread and the thread surface of the internal threaded hole 2371 are always tightly fitted, eliminating the gaps caused by vibration and effectively preventing the bolt from loosening. In addition, during long-term operation, the thread surfaces of the bolt and the internal threaded hole 2371 may experience slight wear due to friction, or slight deformation due to temperature changes and load fluctuations, resulting in an increase in the fit clearance. The elastic deformation capacity of the spring washer 2373 can automatically compensate for these gaps, maintain the tightness of the threaded fit, and ensure that the axial positioning does not fail.

[0067] The flat washer 2372 and the spring washer 2373 can freely exert pressure dispersion and anti-loosening functions in the second shaft hole 2342 without being restricted by the shaft hole space, ensuring stable transmission of axial preload. The flat washer 2372 and the spring washer 2373 are both standardized and universal parts, with low procurement costs and convenient installation. They can be replaced individually after wear, without the need to replace the bolts or the crushing cone 233, which greatly reduces the maintenance cost and downtime of the equipment.

[0068] Reference Figure 6 and Figure 8 In this embodiment, the surface of the crushing cone 2331 is uniformly provided with multiple grooves 238, which are used for rapid discharge after crushing.

[0069] Specifically, by uniformly opening multiple grooves 238 on the surface of the crushing cone 2331, the crushing cone 2331 is shaped like a plum blossom petal, which further improves the crushing and refining of solid materials by the crushing cone 2331, and facilitates the rapid discharge of crushed materials from the grooves 238, thereby enhancing the crushing effect and improving the crushing efficiency.

[0070] When the crushed material is quickly discharged through the groove 238, the crushing chamber will not be hindered by the entry of new material due to the incomplete discharge of old material, ensuring that the equipment can continuously receive material to be crushed, significantly increasing the material processing capacity per unit time. Moreover, the rapid discharge of material through the groove 238 can reduce over-crushing, making the crushing process more in line with the target particle size requirements, reducing ineffective energy consumption. At the same time, it reduces the continuous friction between the retained material and the surface of the crushing cone 2331, which can reduce the wear rate of the surface of the crushing cone 2331, extend its service life, ensure that the particle size of the discharged material is more uniform, and improve the quality stability of the crushed product. Furthermore, the rapid discharge function of the groove 238 reduces material retention from the source, reduces the probability of blockage and hardening, reduces the number of manual cleanings, reduces maintenance costs, and improves the stability and continuity of equipment operation.

[0071] The above structural design enables the crushing ratio of the crushing mechanism 200 to reach between 5 and 6, thereby further improving the crushing efficiency when combined with the crushing impact plate 111.

[0072] By inserting the connecting shaft 2332 into the first shaft hole 2341, the pre-positioning of the crushing cone 2331 and the mounting hole 234 is achieved through the boss 2351 and the slot 2352. Then, the expansion coupling sleeve is inserted from the second shaft hole 2342 until the expansion coupling sleeve contacts the step of the first shaft hole 2341. The expansion coupling sleeve is tightened by providing axial force through fasteners such as bolts, which radially constrains the crushing cone 233 to further prevent loosening. Then, the flat washer 2372 and the spring washer 2373 are installed so that the flat washer 2372 contacts the step at the connection between the first shaft hole 2341 and the second shaft hole 2342. The crushing cone 233 is axially constrained by the threaded engagement of the bolt with the internal threaded hole 2371 to achieve a further anti-loosening effect.

[0073] In this embodiment, the equipment also includes an intelligent control system that can monitor the equipment status in real time, such as the equipment's operation / stop / maintenance status and time, and personnel and equipment safety; it has online intelligent detection capabilities, such as output, particle size, temperature measurement, speed measurement, vibration measurement, automatic lubrication detection, current, voltage, frequency, power detection, overcurrent protection detection, and limit switch breakage detection; it can also transmit real-time data to a remote control room to achieve remote intelligent control, such as alarms, shutdown inspections, output adjustment, motor speed regulation, and roller gap adjustment, to achieve unmanned operation.

[0074] Working principle: In use, large materials are fed into the feed inlet 110 and initially crushed by the crushing impact plate 111. Then, the material enters the crushing mechanism 200. The drive component 320 transmits power to the reducer 330 through the first coupling 340. The reducer 330 transmits power to the drive shaft 210 through the second coupling 350, thereby driving the drive shaft 210 to rotate, which in turn drives the crushing power roller 230 to rotate. The staggered arrangement of the crushing power roller 230 and the crushing non-powered roller 240 forms a crushing space similar to shearing and extrusion. When the material enters the crushing mechanism 200, the drive shaft 210 drives the crushing power roller 230 to rotate. Through the relative movement between the drive shaft 210 and the crushing non-powered roller 240 on the driven shaft 220, the material is crushed a second time. The crushed material is discharged from the discharge outlet 120.

[0075] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0076] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0077] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency special screening, crushing, and pulverizing crusher, characterized in that, include: The frame (100) is provided with a feed inlet (110), a crushing mechanism (200) and a discharge outlet (120) arranged sequentially from top to bottom. At least one side of the feed inlet (110) is rotatably provided with a crushing impact plate (111), which is used to perform preliminary crushing of the material; The crushing mechanism (200) is used to further crush the material.

2. The high-efficiency special screening and crushing machine according to claim 1, characterized in that, The crushing mechanism (200) includes two parallel active rotating shafts (210) and driven rotating shafts (220). The active rotating shaft (210) is connected to a plurality of crushing power rollers (230) along its axial direction, and the driven rotating shaft (220) is connected to a plurality of crushing non-powered rollers (240) along its axial direction. The plurality of crushing power rollers (230) and the plurality of crushing non-powered rollers (240) are arranged alternately.

3. The high-efficiency special screening and crushing machine according to claim 2, characterized in that, The crushing power roller (230) includes a crushing cone ring (231), a mounting cylinder (232), and a crushing cone (233); The outer wall of the crushing cone ring (231) is evenly distributed with multiple mounting cylinders (232), and a crushing cone (233) is provided on the mounting cylinder (232). The crushing cone (233) is used to crush the material.

4. The high-efficiency special screening and crushing machine according to claim 3, characterized in that, The mounting cylinder (232) has a mounting hole (234), and a positioning part (235) is formed between one end of the mounting hole (234) and the crushing cone (233). The positioning part (235) is used to position the installation of the crushing cone (233). A first connector (236) is provided in the mounting hole (234) and sleeved on the crushing cone (233). The first connector (236) is used to position the crushing cone (233) radially. The mounting hole (234) is provided with a second connector (237) that is connected to one end of the crushing cone (233). The second connector (237) is used to position the crushing cone (233) axially.

5. The high-efficiency special screening and crushing machine according to claim 4, characterized in that, The positioning part (235) includes a slot (2351) and a boss (2352); The slot (2351) is opened at one end of the mounting hole (234), the boss (2352) is connected to the crushing cone (233), and the boss (2352) and the slot (2351) can be engaged to realize the pre-positioning of the crushing cone (233) and the mounting hole (234).

6. The high-efficiency special screening and crushing machine according to claim 5, characterized in that, The mounting hole (234) includes a first shaft hole (2341) and a second shaft hole (2342); The diameter of the first shaft hole (2341) is smaller than that of the second shaft hole (2342). The crushing cone (233) is inserted into the first shaft hole (2341). A slot (2351) is provided at the end of the first shaft hole (2341) away from the second shaft hole (2342). The first connector (236) is located in the first shaft hole (2341), and the second connector (237) is located in the second shaft hole (2342).

7. The high-efficiency special screening and crushing machine according to claim 6, characterized in that, The crushing cone (233) includes a crushing cone body (2331) and a connecting shaft (2332); One end of the crushing cone (2331) is connected to a connecting shaft (2332). A boss (2352) is installed on the end of the connecting shaft (2332) near the crushing cone (2331). An internal threaded hole (2371) is opened on the end of the connecting shaft (2332) away from the crushing cone (2331). The connecting shaft (2332) can be inserted into the first shaft hole (2341) and extends to the connection between the first shaft hole (2341) and the second shaft hole (2342).

8. The high-efficiency special screening and crushing machine according to claim 2, characterized in that, A drive mechanism (300) is provided on one side of the frame (100). The drive mechanism (300) is connected to the active rotating shaft (210) and is used to drive the active rotating shaft (210) to rotate.

9. The high-efficiency special screening and crushing machine according to claim 1, characterized in that, The frame (100) is provided with hydraulic tilting mechanisms (400) on both sides. The hydraulic tilting mechanisms (400) are used to open the frame (100) so as to inspect the internal structure of the frame (100).

10. The high-efficiency special screening and crushing machine according to claim 2, characterized in that, A retraction mechanism (500) is provided between the driving shaft (210) and the driven shaft (220). The retraction mechanism (500) is used to adjust the retraction of the driven shaft (220) when it encounters a hard object, so as to protect the equipment.

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