A crusher

Abstract

The utility model relates to sinter crushing equipment technical field, the utility model provides a kind of crusher, it includes crusher main body, the inside of crusher main body is provided with grate plate adjusting mechanism, the grate plate adjusting mechanism includes hydraulic column, the hydraulic column is fixedly installed in the upper end of the crusher main body;Driving mechanism, the driving mechanism includes mounting bracket and single-tooth roller, the single-tooth roller rotation is installed in the inside of the crusher main body, one end of the single-tooth roller penetrates the crusher main body and is fixedly connected with synchronous wheel two;Crushing tooth, the crushing tooth includes mounting seat, locking piece and tooth handle, the mounting seat is fixedly installed in the surface of the connecting column. Through the above technical scheme, the technical problem that the single-tooth head in prior art is mostly integral welding or cast structure, cannot be replaced individually, and the replacement cycle of prior art is long, affects continuous productivity, and replacement cost is high is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of sintered ore crushing equipment, specifically, to a crusher. Background Technology

[0002] The core function of a single-roll crusher is to utilize the rotational motion of a single toothed roller, in conjunction with auxiliary crushing components, to perform primary crushing of these high-temperature, large sintered ores, controlling their particle size to below 50mm. This provides qualified raw materials for subsequent processes such as annular cooling (ensuring uniform cooling and preventing the core temperature of large pieces from failing to decrease), vibrating screening (separating different particle size grades to meet the blast furnace's requirements for stratification of the burden particle size), and blast furnace smelting (ensuring the permeability of the burden and reducing powder blockage). In the entire sintering production process chain, the single-roll crusher occupies a crucial "bridging" position: if the crushed particle size exceeds the standard, it will lead to a decrease of more than 30% in the cooling efficiency of the annular cooler, a surge in the load on the screening system, and even deterioration of the permeability of the blast furnace burden, affecting ironmaking output; if the equipment malfunctions and shuts down, it will directly force the sintering machine to stop production. Based on the capacity of a medium-sized steel enterprise, every hour of downtime will result in a loss of approximately 500 tons of sintered ores, with economic losses reaching hundreds of thousands of yuan.

[0003] In the existing technology, the tooth head and roller body of the single tooth roller are mostly integrally welded or cast. Due to the high hardness and high temperature of sintered ore, the tooth head wears quickly. When the tooth head wears to a certain extent, the entire single tooth roller needs to be replaced. If the entire single tooth roller is replaced, not only will the replacement cycle of the single tooth roller be long (usually requiring 8-12 hours of downtime), but it will also affect the production continuity of sintered ore crushing, and the replacement cost will be high. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a crusher that solves the technical problems of existing single-tooth heads being mostly integrally welded or cast structures, making individual replacement impossible, and having long replacement cycles that affect continuous production and high replacement costs.

[0005] According to one aspect, at least one embodiment of the present invention provides a crusher, comprising: The crusher body has a grate adjustment mechanism inside, which includes a hydraulic column fixedly installed at the upper end of the crusher body. The drive mechanism includes a mounting frame and a single toothed roller. The single toothed roller is rotatably installed inside the crusher body. One end of the single toothed roller passes through the crusher body and is fixedly connected to a synchronous pulley. The crushing tooth includes a mounting base, a locking element, and a tooth shank, wherein the mounting base is fixedly mounted on the surface of a single-toothed roller.

[0006] For example, in at least one embodiment of the present invention, a crusher is provided, which further includes: a mounting groove is provided on the surface of the mounting base, threaded holes are provided on both sides of the mounting base, a connecting column is fixedly connected to one end of the toothed shank, a locking hole is provided on the surface of the connecting column, the outer diameter of the connecting column matches the inner diameter of the mounting groove, and the toothed shank is inserted into the mounting base through the single toothed roller.

[0007] For example, in a crusher provided in at least one embodiment of the present invention, the locking member includes a locking bolt and a nut, and the connecting column is fixed to the mounting base through the locking member.

[0008] For example, in a crusher provided by at least one embodiment of the present invention, the crusher further includes: a tooth head fixedly connected to the bottom end of the tooth shank, the surface of the tooth head being provided with a wear-resistant layer, and the cross-section of the tooth head being trapezoidal.

[0009] For example, in a crusher provided by at least one embodiment of the present invention, the mounting base is spirally distributed on the outer wall of the single-toothed roller, and the mounting base and the single-toothed roller are an integral structure.

[0010] For example, in at least one embodiment of the present invention, a crusher further includes: a discharge chute fixedly connected to the bottom end of the crusher body, a cloth chute fixedly installed at the top end of the crusher body, and sliding tracks provided on both sides of the inner wall of the crusher body.

[0011] For example, in at least one embodiment of the present invention, a crusher further includes: an output end of the hydraulic column is fixedly connected to an installation plate, both ends of the installation plate are fixedly connected to sliders, the upper end of the installation plate is fixedly connected to a grate bar, the outer diameter of the slider matches the inner diameter of the slide rail, and the installation plate is slidably connected to the crusher body through the sliders.

[0012] For example, in at least one embodiment of the present invention, a crusher is further provided, including: a motor is fixedly installed at the upper end of the mounting frame, the output shaft of the motor is fixedly connected to a first synchronous pulley, the outer wall of the first synchronous pulley is drivenly connected to a synchronous belt, and the end of the synchronous belt away from the first synchronous pulley is drivenly connected to a second synchronous pulley.

[0013] The beneficial effects of the embodiments of this utility model are as follows: (1) In this utility model, a detachable tooth head design is adopted. When the tooth head is worn, only the worn tooth head needs to be replaced, without replacing the entire single tooth roller, which shortens the replacement time, saves maintenance costs, and effectively improves production continuity. The trapezoidal tooth head combined with the spiral distribution reduces the "material jamming" phenomenon in the crushing process, significantly improves the crushing efficiency, and greatly increases the qualified rate of the sintered ore after crushing. The wear-resistant layer significantly improves the wear resistance and high temperature resistance of the tooth head, extends its service life, reduces the number of downtime replacements, and reduces the labor intensity of workers.

[0014] (2) In this utility model, the mounting plate is driven by a hydraulic column to move back and forth within the range of the slide, so that the gap between the grate bar and the single toothed roller can be adjusted. The adjustment range is 20-80mm. By adjusting the gap within this range, the requirements of different processes for the crushing particle size of sinter can be met. When coarser sinter is required, the gap can be increased; when finer sinter is required, the gap can be decreased, which greatly improves the applicability of the crusher. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the grate adjustment mechanism in the embodiment; Figure 3 for Figure 1 A schematic diagram of the single-toothed roller structure in the embodiment; Figure 4 for Figure 3 A schematic diagram of the breaking tooth structure in the embodiment.

[0017] In the diagram: 1. Crusher body; 11. Discharge chute; 12. Feed chute; 13. Slide rail; 2. Grate adjustment mechanism; 21. Hydraulic column; 22. Mounting plate; 23. Sliding block; 24. Grate bar; 3. Drive mechanism; 31. Mounting frame; 32. Motor; 33. Synchronous pulley one; 34. Synchronous belt; 35. Synchronous pulley two; 36. Single toothed roller; 4. Crushing tooth; 41. Mounting seat; 42. Mounting groove; 43. Threaded hole; 44. Locking element; 45. Tooth shank; 46. Connecting column; 47. Locking hole; 48. Tooth head; 49. Wear-resistant layer. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-4As shown, it illustrates a crusher according to one embodiment of the present invention, including... The crusher body 1 has a grate adjustment mechanism 2 inside it. The grate adjustment mechanism 2 includes a hydraulic column 21, which is fixedly installed on the upper end of the crusher body 1. Drive mechanism 3 includes mounting frame 31 and single toothed roller 36. The single toothed roller 36 is rotatably installed inside the crusher body 1. One end of the single toothed roller 36 passes through the crusher body 1 and is fixedly connected to synchronous pulley 35. The crushing tooth 4 includes a mounting base 41, a locking element 44, and a tooth shank 45. The mounting base 41 is fixedly mounted on the surface of the single toothed roller 36.

[0025] Mounting base 41 has a mounting groove 42 on its surface and threaded holes 43 on both sides. One end of the toothed shank 45 is fixedly connected to a connecting post 46. The surface of the connecting post 46 has a locking hole 47. The outer diameter of the connecting post 46 matches the inner diameter of the mounting groove 42. The toothed shank 45 is inserted into the mounting base 41 through a single toothed roller 36.

[0026] The locking element 44 includes a locking bolt and a nut, and the connecting column 46 is fixed to the mounting base 41 through the locking element 44.

[0027] The bottom end of the toothed shank 45 is fixedly connected to a toothed head 48, the surface of which is provided with a wear-resistant layer 49, and the cross-section of the toothed head 48 is trapezoidal.

[0028] The mounting base 41 is spirally distributed on the outer wall of the single toothed roller 36, and the mounting base 41 and the single toothed roller 36 are an integral structure.

[0029] In some examples, by opening a mounting groove 42 on the surface of the mounting base 41 that matches the outer diameter of the single toothed roller 36, and by setting threaded holes 43 and locking holes 47 on the sides of the mounting base 41 and the connecting column 46 respectively, the toothed head 48 and the single toothed roller 36 can be detachably installed together with the locking part 44, which facilitates quick disassembly and replacement of the toothed head 48 in high temperature environments and reduces downtime. When installing the tooth 48, insert the connecting post 46 into the mounting groove 42, pass the locking bolt through the threaded hole 43 and screw it into the locking hole 47, and tighten the nut to make the tooth 48 securely installed. The locking bolts should be high-strength bolts (such as M24×80, grade 10.9 bolts). The bottom cross-section of the tooth 48 is trapezoidal. The trapezoidal structure of the tooth 48 can better adapt to the crushing requirements of high-temperature sintered ore, reduce the "material jamming" phenomenon, improve crushing efficiency, and make the crushed sintered ore particles more uniform. The wear-resistant layer 49 is made of tungsten carbide. Tungsten carbide has high hardness (HRC85-90) and good high temperature resistance (can be used for a long time in environments above 1000℃), which can effectively resist the wear and erosion of high-temperature sintered ore and extend the service life of the tooth 48 to 30-40 days; The mounting base 41 is spirally distributed on the outer peripheral wall of the single toothed roller 36. The spirally distributed teeth 48 can make the high-temperature sintered ore be subjected to a more uniform force during the crushing process, reduce the vibration and noise of the single toothed roller 36 (the vibration amplitude can be reduced by 15% to 20%), improve the stability of equipment operation, and further enhance the crushing effect. The mounting base 41 and the single toothed roller 36 are integrally formed. The integrally formed structure can improve the connection strength between the mounting base 41 and the single toothed roller 36, ensuring that the mounting base 41 will not loosen or break under heavy load conditions of crushing high temperature sintered ore, and ensuring the overall stability of the single toothed roller 36.

[0030] For example, such as Figures 1-2 As shown, a discharge chute 11 is fixedly connected to the bottom of the crusher body 1, a material feeding chute 12 is fixedly installed at the top of the crusher body 1, and slides 13 are provided on both sides of the inner wall of the crusher body 1.

[0031] The output end of the hydraulic column 21 is fixedly connected to the mounting plate 22, and the two ends of the mounting plate 22 are fixedly connected to the sliders 23. The upper end of the mounting plate 22 is fixedly connected to the grate bar 24. The outer diameter of the slider 23 matches the inner diameter of the slide rail 13. The mounting plate 22 is slidably connected to the crusher body 1 through the slider 23.

[0032] A motor 32 is fixedly installed at the upper end of the mounting bracket 31. The output shaft of the motor 32 is fixedly connected to a synchronous pulley 33. A synchronous belt 34 is driven to the outer wall of the synchronous pulley 33. The end of the synchronous belt 34 away from the synchronous pulley 33 is driven to the synchronous pulley 35. In some examples, the grate bars 24 are arranged vertically along the axial direction of the single-toothed roller 36, with gaps between adjacent grate bars 24, the gap width being 30-50 mm. The height of the grate bars 24 is adapted to the diameter of the single-toothed roller 36. The vertically arranged grate bars 24 cooperate with the teeth 48 above the single-toothed roller 36, forming multiple compressions and shears on the sinter during the rotation of the single-toothed roller 36, thus improving the crushing effect. At the same time, the gaps between adjacent grate bars 24 allow sinter that meets the particle size requirements to be discharged in time, playing a screening role, avoiding over-crushing, and improving crushing efficiency. The hydraulic column 21 drives the mounting plate 22 to move back and forth within the slide rail 13, making the gap between the grate bar 24 and the single-tooth roller 36 adjustable. The adjustment range is 20-80mm. By adjusting the gap within this range, the requirements of different processes for the crushing particle size of sinter can be met. When coarser sinter is required, the gap can be increased; when finer sinter is required, the gap can be decreased, which greatly improves the applicability of the crusher.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A crusher, characterized in that, include: The crusher body (1) is provided with a grate adjustment mechanism (2) inside the crusher body (1). The grate adjustment mechanism (2) includes a hydraulic column (21), which is fixedly installed at the upper end of the crusher body (1). The drive mechanism (3) includes a mounting frame (31) and a single toothed roller (36). The single toothed roller (36) is rotatably installed inside the crusher body (1). One end of the single toothed roller (36) passes through the crusher body (1) and is fixedly connected to a synchronous wheel (35). The crushing tooth (4) includes a mounting base (41), a locking element (44), and a tooth shank (45). The mounting base (41) is fixedly mounted on the surface of the single toothed roller (36).

2. The crusher according to claim 1, characterized in that, The mounting base (41) has a mounting groove (42) on its surface and threaded holes (43) on both sides. One end of the toothed shank (45) is fixedly connected to a connecting post (46). The surface of the connecting post (46) has a locking hole (47). The outer diameter of the connecting post (46) matches the inner diameter of the mounting groove (42). The toothed shank (45) is inserted into the mounting base (41) through the single toothed roller (36).

3. A crusher according to claim 2, characterized in that, The locking element (44) includes a locking bolt and a nut, and the connecting column (46) is fixed to the mounting base (41) by the locking element (44).

4. A crusher according to claim 2, characterized in that, The bottom end of the toothed shank (45) is fixedly connected to a toothed head (48), the surface of which is provided with a wear-resistant layer (49), and the cross-section of the toothed head (48) is trapezoidal.

5. A crusher according to claim 1, characterized in that, The mounting base (41) is spirally distributed on the outer wall of the single toothed roller (36), and the mounting base (41) and the single toothed roller (36) are an integral structure.

6. A crusher according to claim 1, characterized in that, The bottom end of the crusher body (1) is fixedly connected to a discharge chute (11), the top end of the crusher body (1) is fixedly installed with a material feeding chute (12), and the inner walls of the crusher body (1) are provided with slides (13).

7. A crusher according to claim 6, characterized in that, The output end of the hydraulic column (21) is fixedly connected to the mounting plate (22), and the two ends of the mounting plate (22) are fixedly connected to the slider (23). The upper end of the mounting plate (22) is fixedly connected to the grate bar (24). The outer diameter of the slider (23) matches the inner diameter of the slide rail (13). The mounting plate (22) is slidably connected to the crusher body (1) through the slider (23).

8. A crusher according to claim 1, characterized in that, A motor (32) is fixedly installed at the upper end of the mounting bracket (31). The output shaft of the motor (32) is fixedly connected to a synchronous pulley (33). A synchronous belt (34) is driven to the outer wall of the synchronous pulley (33). The end of the synchronous belt (34) away from the synchronous pulley (33) is driven to the synchronous pulley (35).

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