Crushing roller and roller type crushing equipment
By designing crushing grooves and raised groove walls on the crushing rollers, the problem of floating and jumping of the re-pulling material during the crushing process is solved, which improves the crushing efficiency and effect, ensures that the material is crushed as needed, and meets the requirements of the crystal pulling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGI GREEN ENERGY TECH CO LTD
- Filing Date
- 2025-03-05
- Publication Date
- 2026-04-28
AI Technical Summary
In the existing roller crushing equipment, when the silicon raw material for re-pulling needs to be crushed before being fed into the crystal pulling furnace during the crystal rod preparation process, the head and tail materials or the rod material float and jump, resulting in poor crushing effect and low efficiency.
Design a crushing roller, including a first roller shaft and a plurality of first crushing teeth distributed along its circumference, with crushing grooves formed between adjacent crushing teeth, and protrusions provided on the groove walls. The crushing grooves and protrusions are used to squeeze and crush materials, reduce the risk of floating, and improve crushing efficiency.
The design of the crushing slot and protrusions effectively restricts material from floating, improving crushing efficiency and effect, ensuring that materials are crushed as needed to meet the requirements of subsequent processes.
Smart Images
Figure CN224167594U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic technology, and in particular to a crushing roller and a roller crushing device. Background Technology
[0002] In the crystal rod preparation process, the silicon raw material for re-pulling needs to be crushed to a certain process size before being put into the crystal pulling furnace. However, when using existing roller crushing equipment to crush the head and tail materials or rods, the head and tail materials or rods will float and jump upwards, making it impossible to crush them downwards, resulting in poor crushing effect and low crushing efficiency. Utility Model Content
[0003] In view of the above problems, embodiments of this application are proposed to provide a crushing roller and a roller crushing device that overcomes or at least partially solves the above problems.
[0004] To address the aforementioned problems, in a first aspect, embodiments of this application disclose a crushing roller, comprising:
[0005] A first roller shaft has a plurality of first crushing teeth distributed along its circumference; each first crushing tooth includes a first sidewall and a second sidewall disposed opposite to each other.
[0006] A crushing groove is formed between two adjacent first crushing teeth; along the circumference of the first roller shaft, the first sidewall of one of the two adjacent first crushing teeth and the second sidewall of the other first crushing tooth form the groove wall of the crushing groove that is arranged opposite to each other.
[0007] At least one protrusion is provided on the first sidewall and / or the second sidewall.
[0008] Secondly, embodiments of this application disclose a roller crushing device, including a first crushing unit, at least one of which includes two crushing rollers arranged opposite to each other as described above.
[0009] The embodiments of this application include the following advantages:
[0010] In this embodiment, a crushing groove can be formed between two adjacent first crushing teeth, between the first sidewall of one first crushing tooth and the second sidewall of the other first crushing tooth, and the groove walls of the crushing groove are formed by oppositely arranged groove walls. Since at least one protrusion is provided on at least one of the first and second sidewalls, at least one protrusion can be provided on the groove wall of the crushing groove. In this way, during the rolling of the first roller, while the crushing groove restricts the material to be crushed, the protrusion on the groove wall of the crushing groove can be used to squeeze and crush the material to be crushed. This can reduce the risk of the material to be crushed floating, improve the crushing effect of the material to be crushed, and thus improve the efficiency of material crushing. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a crushing roller according to this application;
[0012] Figure 2 This is a schematic diagram of another crushing roller structure in this application;
[0013] Figure 3 This is a side view of a crushing roller according to this application;
[0014] Figure 4 This is a schematic diagram of the structure of the first crushing unit of this application;
[0015] Figure 5 This is a structural schematic diagram of a roller crusher according to this application;
[0016] Figure 6 This is a schematic diagram of another roller crusher according to this application.
[0017] Explanation of reference numerals in the attached figures:
[0018] 10. First crushing unit; 11. Crushing roller; 12. First coarse crushing roller; 13. Second coarse crushing roller; 21. First roller shaft; 22. First crushing tooth; 221. First side wall; 222. Second side wall; 24. Crushing groove; 241. First inscribed cylindrical surface; 25. Protrusion; 26. Tooth tip; 31. First crushing space; 311. Second inscribed cylindrical surface; 32. Second crushing space; 33. Third crushing space; 50. Second crushing unit; 51. Fine crushing roller; 511. Second roller shaft; 513. Second crushing tooth; 52. First fine crushing roller; 53. Second fine crushing roller. Detailed Implementation
[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims 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] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection 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 application based on the specific circumstances.
[0023] Firstly, one of the core concepts of the embodiments of this application lies in disclosing a crushing roller 11, such as... Figures 1 to 3 As shown, the crushing roller 11 includes: a first roller shaft 21, with a plurality of first crushing teeth 22 distributed circumferentially along the first roller shaft 21; each first crushing tooth 22 includes: a first sidewall 221 and a second sidewall 222 disposed opposite to each other; a crushing groove 24 is formed between two adjacent first crushing teeth 22; along the circumferential direction of the first roller shaft 21, the first sidewall 221 of one of two adjacent first crushing teeth 22 and the second sidewall 222 of the other first crushing tooth 22 form the groove wall of the crushing groove 24 disposed opposite to each other; at least one protrusion 25 is provided on the first sidewall 221 and / or the second sidewall 222. In this embodiment, the first sidewall 221 and the second sidewall 222 are disposed opposite to each other, and the first sidewall 221 and the second sidewall 222 are connected.
[0024] In this embodiment, a crushing groove 24 can be formed between two adjacent first crushing teeth 22, between the first sidewall 221 of one first crushing tooth 22 and the second sidewall 222 of the other first crushing tooth 22, and constitutes the groove wall of the crushing groove 24. Since at least one protrusion 25 is provided on at least one of the first sidewall 221 and the second sidewall 222, at least one protrusion 25 can be provided on the groove wall of the crushing groove 24. In this way, during the rolling of the first roller shaft 21, while the crushing groove 24 restricts the material to be crushed, the protrusion 25 on the groove wall of the crushing groove 24 can be used to squeeze and crush the material to be crushed, which can reduce the risk of the material to be crushed floating, improve the crushing effect of the material to be crushed, and thus improve the efficiency of material crushing.
[0025] In this embodiment, the crushing roller 11 can crush the material to be crushed into the required particle size, so that processes such as mineral processing, smelting, and crystal pulling can proceed smoothly. Taking the application of the crushing roller 11 in the field of crystal pulling technology as an example, the crushing roller 11 can be used to crush the bar stock into suitable sizes, so that the subsequent crystal pulling process can proceed smoothly. Specifically, when crushing the bar stock, two crushing rollers 11 can be used to compress the bar stock to crush it. The bar stock can be a cylinder or a prism, etc.
[0026] In this embodiment, the first roller 21 can rotate clockwise or counterclockwise to perform the crushing task. Figure 3 As shown, the first roller shaft 21 rotates in the direction of the arrow. Among two adjacent first crushing teeth 22, the first sidewall 221 of one first crushing tooth 22 and the second sidewall 222 of the adjacent first crushing tooth 22 form a crushing groove 24 for clamping the bar material. In this way, during the rolling of the first roller shaft 21, the crushing groove 24 can be used to clamp the bar material and crush it downward, thereby limiting the upward floating and jumping of the bar material.
[0027] Furthermore, during the crushing operation, two crushing rollers 11 are typically arranged opposite each other, using the first crushing teeth 22 on the two crushing rollers 11 to squeeze the bar stock, such as... Figure 5 As shown, under the compression constraint of the two crushing slots 24, the bar stock is simultaneously squeezed and crushed by the protrusions 25. On the one hand, the compression force on the bar stock can be increased to reduce the risk of the bar stock floating. On the other hand, the crushing capacity of the bar stock can be increased to improve the crushing efficiency of the bar stock.
[0028] Specifically, the crushing roller 11 may include a first roller shaft 21 and at least one first roller wheel, wherein a ring of first crushing teeth 22 arranged circumferentially along the first roller shaft 21 constitutes one first roller wheel. At least one first roller wheel may be sleeved on the first roller shaft 21. When there are multiple first roller wheels, they may be coaxially arranged and rotate synchronously under the drive of the first roller shaft 21. In this embodiment, the number of first roller wheels is not specifically limited; this embodiment only illustrates the case where one first roller wheel is arranged on the first roller shaft 21.
[0029] Specifically, the first roller and the first roller shaft 21 can be connected by a bushing, and the first roller shaft 21 and the bushing can be connected by a key or bolts, etc., to facilitate disassembly and improve maintenance efficiency.
[0030] Specifically, the material of the first crushing tooth 22 can be tungsten, cobalt, or a tungsten-cobalt alloy, etc. The material of the first crushing tooth 22 is not limited in the embodiments of this application.
[0031] Specifically, multiple first crushing teeth 22 in the same first roller are evenly spaced along the circumference of the first roller shaft 21, and a crushing groove 24 is formed between two adjacent first crushing teeth 22. In this embodiment, the size and number of crushing grooves 24 are not specifically limited.
[0032] In some embodiments, the first sidewall 221 and the second sidewall 222 of the breakage groove 24 can be smoothly connected, so that the groove wall of the breakage groove 24 is composed only of the first sidewall 221 and the second sidewall 222. In other embodiments, the first sidewall 221 and the second sidewall 222 can be connected by a transitional bottom wall, so that the first sidewall 221 and the second sidewall 222 form part of the groove wall of the breakage groove 24.
[0033] Specifically, the crushing groove 24 can be a through groove that extends along the axial direction of the first roller shaft 21, which facilitates clamping the bar stock.
[0034] In some embodiments, the first sidewall 221 and / or the second sidewall 222 can be designed as arc surfaces, the radius of which can be close to the radius of the first inscribed cylindrical surface 241 of the crushing groove 24, and the radius of the first inscribed cylindrical surface 241 can be close to the radius of the bar stock. Multiple protrusions 25 are designed on the groove wall of the crushing groove 24 to form wolf teeth on the groove wall of the crushing groove 24, thereby increasing the contact points with the bar stock and enhancing the crushing effect on the bar stock.
[0035] Specifically, at least one of the first sidewall 221 and the second sidewall 222 is provided with at least one protrusion 25, so that at least one protrusion 25 can be arranged on the groove wall of the breakage slot 24. In this embodiment, the shape and number of protrusions 25 are not specifically limited.
[0036] For example, multiple protrusions 25 can be spaced apart circumferentially and / or axially along the first roller shaft 21. In the direction perpendicular to the first roller shaft 21, the cross-sectional shape of the protrusions 25 can be triangular or conical, etc., so that the ends of the protrusions 25 away from the groove wall can form crushing tips, which can further improve the effect of the protrusions 25 in crushing the bar stock.
[0037] Specifically, the height and number of protrusions 25 are not specifically limited in this embodiment. Increasing the number of protrusions 25 can enhance the limiting effect of the crushing slot 24 and the crushing strength.
[0038] Specifically, the end of the first sidewall 221 away from the first roller shaft 21 forms a tooth tip 26, and the end of the protrusion 25 away from the first roller shaft 21 can form a crushing apex. When performing the crushing task, both the tooth tip 26 and the crushing apex can make point contact with the bar stock to apply pressure to the bar stock and achieve the purpose of crushing the bar stock.
[0039] In some alternative embodiments, the crushing slot 24 has a first inscribed cylindrical surface 241 extending axially along the first roller shaft 21; one of the first sidewall 221 and the second sidewall 222 is provided with at least one protrusion 25; in the same crushing slot 24, such as Figure 3 As shown, the end A of the protrusion 25 away from the first roller shaft 21, the end B of the side wall of the protrusion 25 away from the first roller shaft 21, and the wall C of the other side wall without the protrusion 25 pass through the first inscribed cylindrical surface 241.
[0040] In this embodiment of the application, in the same crushing slot 24, the end A of the protrusion 25 away from the first roller shaft 21, the end B of the side wall of the protrusion 25 away from the first roller shaft 21, and the wall C of the other side wall without the protrusion 25 can all apply extrusion pressure to the bar stock, thereby increasing the stress points of the bar stock and increasing the extrusion pressure on the bar stock, which can improve the convenience and reliability of limiting and crushing the bar stock.
[0041] For example, when a protrusion 25 is provided on the first sidewall 221, in the same crushing groove 24, the end A of the protrusion 25 away from the first roller shaft 21, the end B of the first sidewall 221 away from the first roller shaft 21, and the wall surface C of the second sidewall 222 pass through the first inscribed cylindrical surface 241; or, when a protrusion 25 is provided on the second sidewall 222, in the same crushing groove 24, the end A of the protrusion 25 away from the first roller shaft 21, the end B of the second sidewall 222 away from the first roller shaft 21, and the wall surface C of the first sidewall 221 pass through the first inscribed cylindrical surface 241.
[0042] In some alternative embodiments, the end of the protrusion 25 away from the first roller shaft 21 has a minimum distance of H1 from the root circle of the crushing roller 11 in the radial direction of the first roller shaft 21; the first crushing tooth 22 is provided with a sidewall of the protrusion 25, the end of the first roller shaft 21 away from the first roller shaft 21 has a minimum distance of H2 from the root circle of the crushing roller 11 in the radial direction of the first roller shaft 21; 0.4H2≤H1≤0.6H2.
[0043] In this embodiment, the root circle can be the circumferential surface where the root of the broken tooth is located.
[0044] In this embodiment, 0.4H2≤H1≤0.6H2, so that the protrusion 25 is close to the middle position of the side wall on which the protrusion 25 is provided, which helps to ensure the structural stability of the first crushing tooth 22 and helps to reduce the upward force exerted by the protrusion 25 on the bar, thereby improving the reliability of the crushing groove 24 in restricting the bar from floating.
[0045] In this embodiment of the application, the sidewall with the protrusion 25 can be at least one of the first sidewall 221 and the second sidewall 222.
[0046] Specifically, 20mm≤H1≤50mm, where H1 can be 20mm, 30mm, 45mm, or 50mm, etc.
[0047] Optionally, the first sidewall 221 may include either a curved surface or an inclined surface, making the structure of the first sidewall 221 more diverse.
[0048] Specifically, the first sidewall 221 can be an inclined surface, allowing the first sidewall 221 to contact the bar stock line. For example... Figures 1 to 3 As shown, the first sidewall 221 can also be a curved surface, allowing the first sidewall 221 to contact the bar stock surface. The curved surface may include an arc surface or a circular arc surface, etc.
[0049] Optionally, the second sidewall 222 may include either a curved surface or an inclined surface, allowing for greater structural diversity. The curved surface may include an arc-shaped surface or a circular arc surface, etc.
[0050] Specifically, such as Figures 1 to 3As shown, the second sidewall 222 can be an inclined surface, allowing it to contact the bar stock line. Alternatively, the second sidewall 222 can be a curved surface, allowing it to contact the bar stock surface.
[0051] In this embodiment, the first sidewall 221 can be either a curved surface or an inclined surface, and the second sidewall 222 can be either a curved surface or an inclined surface, so that the breakage slot 24 can present a variety of shapes.
[0052] For example, both the first sidewall 221 and the second sidewall 222 are curved surfaces. Along the direction perpendicular to the first roller shaft 21, the cross-sectional shape of the crushing groove 24 can be arc-shaped. Or, as... Figures 1 to 3 As shown, the first sidewall 221 is a curved surface, and the second sidewall 222 is an inclined surface.
[0053] In other embodiments, the first sidewall 221 and the second sidewall 222 may also present other unconventional shapes. For example, the cross-sectional shape of the crushing groove 24 along the direction perpendicular to the first roller shaft 21 may also be polygonal, such as a triangle, quadrilateral or pentagon, etc. This application embodiment does not specifically limit this.
[0054] In some specific embodiments, such as Figures 1 to 3 As shown, the first sidewall 221 is a curved surface with protrusions 25, and the second sidewall 222 is an inclined surface. The second sidewall 222 can be used to support and limit the bar stock. The end of the first sidewall 221 away from the first roller shaft 21 and the end of the protrusions 25 away from the first roller shaft 21 can contact the bar stock and squeeze, limit, and crush it.
[0055] The crushing roller 11 described in this application embodiment has at least the following advantages:
[0056] In this embodiment, a crushing groove 24 can be formed between two adjacent first crushing teeth 22, between the first sidewall 221 of one first crushing tooth 22 and the second sidewall 222 of the other first crushing tooth 22, and constitutes the groove wall of the crushing groove 24. Since at least one protrusion 25 is provided on at least one of the first sidewall 221 and the second sidewall 222, at least one protrusion 25 can be provided on the groove wall of the crushing groove 24. In this way, during the rolling of the first roller shaft 21, while the crushing groove 24 restricts the material to be crushed, the protrusion 25 on the groove wall of the crushing groove 24 can be used to squeeze and crush the material to be crushed, which can reduce the risk of the material to be crushed floating, improve the crushing effect of the material to be crushed, and thus improve the efficiency of material crushing.
[0057] Secondly, this application also discloses a roller crushing device, including a first crushing unit 10. The number of first crushing units 10 can be at least one, for example, one, two, three, etc. At least one first crushing unit 10 includes two crushing rollers 11 arranged opposite to each other as described above.
[0058] In this embodiment of the application, the two crushing rollers 11 in the first crushing unit 10 are arranged opposite to each other, so that the gap between the two crushing rollers 11 can be used to place the bar material, and the bar material is crushed by the first crushing teeth 22 in the two crushing rollers 11 together.
[0059] Specifically, in the first crushing unit 10, the first roller shafts 21 of the two crushing rollers 11 can be arranged at intervals. The first roller shafts 21 of the two crushing rollers 11 can be placed in parallel, and the first roller shafts 21 of the two crushing rollers 11 can roll towards each other or roll in the same direction, etc. This application embodiment does not make specific limitations on this.
[0060] Specifically, in the first crushing unit 10, the rotation speed of the first roller shaft 21 of the two crushing rollers 11 can be the same or different. When the rotation speed of the first roller shaft 21 of the two crushing rollers 11 is the same, it is convenient to improve the crushing efficiency.
[0061] For example, such as Figure 5 and Figure 6 As shown, the left crushing roller 11 rotates clockwise and the right crushing roller 11 rotates counterclockwise. The first crushing teeth 22 on the two crushing rollers 11 together squeeze the bar material downwards and crush it.
[0062] Specifically, such as Figure 5 and Figure 6 As shown, during the crushing process, the first roller shaft 21 on the left rotates clockwise, and the first roller shaft 21 on the right rotates counterclockwise. During the rotation of the first roller shafts 21 on both sides, the bar stock undergoes a state change from being wrapped to being pressed, and then to being squeezed, thereby achieving crushing. The minimum extrusion spacing meets the crushing size requirement, and this extrusion spacing can be designed according to actual needs. This embodiment of the application does not specifically limit this.
[0063] Optionally, in the two crushing rollers 11 of the first crushing unit 10, the crushing groove 24 on one crushing roller 11 and the crushing groove 24 on the other crushing roller 11 are arranged facing each other to form a crushing space; the crushing space has a second inscribed cylindrical surface 311 extending axially along the first roller shaft 21 of the crushing roller 11; the second inscribed cylindrical surface 311 passes through the end A of the protrusion 25 on the groove wall of at least one crushing groove 24, and / or, the groove wall of at least one of the crushing grooves 24 is away from the end of the first roller shaft 21.
[0064] In this embodiment of the application, the second inscribed cylindrical surface 311 passes through the end A of the protrusion 25 on the groove wall of at least one crushing groove 24 and the end of the groove wall away from the first roller shaft 21. During the crushing process, the end A of the protrusion 25 on the groove wall of at least one crushing groove 24 and the end of the groove wall away from the first roller shaft 21 can be used to squeeze and crush the bar material, effectively ensuring the crushing effect.
[0065] Specifically, the crushing space is a space that extends axially along the first roller shaft 21. When the bar stock is placed into the crushing space, the axial direction of the bar stock is aligned with the axial direction of the first roller shaft 21, and the circumferential surface of the bar stock can be squeezed using the tooth tips 26 and the protrusions 25. Figure 5 As shown, during the rotation of the first roller shaft 21, the openings of the crushing slots 24 located on the two crushing rollers 11 are always facing each other and enclosed to form a crushing space for accommodating the bar stock.
[0066] Specifically, the diameter of the second inscribed cylindrical surface 311 can be the same as or close to the diameter of the bar stock, such as... Figure 5 and Figure 6 As shown, taking the case where the diameter of the second inscribed cylindrical surface 311 is the same as the diameter of the bar stock as an example, the tooth tip 26 can squeeze the upper middle part of the bar stock, and the tooth tip 26 squeezes the bar stock downward, causing the bar stock to be squeezed downward and broken, which can prevent the bar stock from floating.
[0067] Specifically, the diameter of the second inscribed cylindrical surface 311 can be between 252 mm and 330 mm.
[0068] In some alternative embodiments, the groove wall of at least one crushing slot 24 forming the crushing space is located at the end away from the first roller shaft 21, and the distance between the groove wall and the axis of the second inscribed cylindrical surface 311 in the vertical direction is L, 10mm≤L≤20mm.
[0069] In this embodiment, 10mm≤L≤20mm facilitates downward compression of the bar stock through the groove wall of the crushing slot 24, thereby improving the reliability of downward crushing of the bar stock.
[0070] Specifically, during the crushing process of the bar stock, the end of the crushing groove 24 that forms the crushing space away from the first roller shaft 21 forms a tooth tip 26. In the vertical direction, the tooth tip 26 is a distance L above the axis of the second inscribed cylindrical surface 311, so that the tooth tip 26 can hold the bar stock in the middle and upper position. The tooth tip 26 can restrict the bar stock from floating upward and squeeze the bar stock downward to crush it. It can also avoid the first crushing tooth 22 from breaking due to excessive torque, thus ensuring the service life of the crushing tooth and reducing costs.
[0071] Optionally, when the first sidewall 221 of the crushing groove 24 forming the crushing space is located above the second sidewall 222 in the vertical direction, the end of the first sidewall 221 away from the first roller shaft 21 is spaced apart by a distance L from the axis of the second inscribed cylindrical surface 311. The axis of the second inscribed cylindrical surface 311 is perpendicular to the horizontal direction.
[0072] In the embodiments of this application, such as Figure 5 As shown, the first roller shafts 21 of the two crushing rollers 11 can roll towards each other in the direction of the arrow. The end of the first side wall 221 of the crushing groove 24 forming the crushing space away from the first roller shaft 21 can hold the bar material and squeeze and restrict the downward movement of the bar material, which can prevent the bar material from floating, improve the crushing efficiency of the bar material, and realize automation.
[0073] In other embodiments, when the second sidewall 222 of the crushing groove 24 forming the crushing space is located above the first sidewall 221 in the vertical direction, the distance L between the end of the second sidewall 222 away from the first roller shaft 21 and the axis of the second inscribed cylindrical surface 311 is determined by designing the rotation direction of the first roller shaft 21 of the two crushing rollers 11. This allows the end of the second sidewall 222 of the crushing groove 24 forming the crushing space away from the first roller shaft 21 to hold the bar stock and compress and restrict its movement, preventing it from floating and improving the efficiency of crushing the bar stock. The axis of the second inscribed cylindrical surface 311 is perpendicular to the horizontal direction.
[0074] In some alternative embodiments, at least one protrusion 25 is provided on the groove wall of at least one crushing groove 24 forming the crushing space to increase the contact point between the crushing roller 11 and the bar stock, thereby enhancing the compression and crushing effect on the bar stock.
[0075] In this embodiment of the application, the axial direction of the first roller shaft 21 is perpendicular to the vertical direction and the horizontal direction, respectively. The first roller shaft 21 of the two crushing rollers 11 can be arranged at intervals in the horizontal direction. The bar can be fed in the vertical direction. During the process of the first roller shaft 21 of the two crushing rollers 11 rolling towards each other, the bar can be crushed.
[0076] like Figure 5 As shown, the horizontal direction is parallel to the S1 direction, and the vertical direction is parallel to the S2 direction.
[0077] Optionally, the first inscribed cylindrical surface 241 of at least one crushing groove 24 forming the crushing space coincides with the second inscribed cylindrical surface 311, so as to crush the bar material by means of the protrusions 25 and tooth tips on at least one crushing roller 11.
[0078] For example, the first inscribed cylindrical surface 241 of the crushing groove 24 forming the crushing space coincides with the second inscribed cylindrical surface 311, which can simultaneously apply a balanced extrusion force to both sides of the bar stock, thereby enhancing the crushing force on the bar stock and protecting the first crushing tooth 22.
[0079] Optionally, in the two crushing rollers 11 arranged opposite each other, the projection of the first crushing tooth 22 of one crushing roller 11 onto the midpoint of the two crushing rollers 11 is at least partially overlapped with the projection of the first crushing tooth 22 of the other crushing roller 11 onto the midpoint of the two crushing rollers 11, so that the first crushing teeth 22 on the two crushing rollers 11 can apply extrusion force to the opposite sides of the bar stock respectively, so that the extrusion force on the bar stock in a certain area is greater, and the crushing force on the bar stock can be further improved.
[0080] In some embodiments, in the two crushing rollers 11 arranged opposite each other, the projection of the first crushing tooth 22 of one crushing roller 11 onto the midpoint of the two crushing rollers 11 coincides with the projection of the first crushing tooth 22 of the other crushing roller 11 onto the midpoint of the two crushing rollers 11, so that the slots of the two crushing slots 24 forming the crushing space are directly opposite each other in the horizontal direction.
[0081] In the embodiments of this application, in the first crushing unit 10, the two crushing rollers 11 are symmetrically arranged along the interval direction of the first roller shaft 21 of the two crushing rollers 11, so that the first crushing teeth 22 of the two crushing rollers 11 can apply force to the bar stock simultaneously, which facilitates the crushing effect on the bar stock.
[0082] Specifically, such as Figure 5 and Figure 6 As shown, the first roller shafts 21 of the two crushing rollers 11 are arranged at intervals in the horizontal direction, and the two crushing rollers 11 are arranged symmetrically in the horizontal direction. During the crushing of the bar stock, the tooth tips 26 and protrusions 25 of the left crushing roller 11 contact the bar stock, and the tooth tips 26 and protrusions 25 of the right crushing roller 11 can also contact the bar stock. The bar stock can be crushed at least at four points simultaneously, which can increase the compression and limiting effect on the bar stock and the crushing strength.
[0083] In some embodiments, in the two crushing rollers 11 arranged opposite each other, the projection of the first crushing tooth 22 of one crushing roller 11 onto the midpoint of the two crushing rollers 11 partially coincides with the projection of the first crushing tooth 22 of the other crushing roller 11 onto the midpoint of the two crushing rollers 11, such that the first crushing tooth 22 on one crushing roller 11 is arranged opposite to the groove of the crushing slot 24 of the other crushing roller 11. In this way, the crushing slot 24 of one crushing roller 11 can be used to restrict the bar stock, and then the tooth tip 26 of the other crushing roller 11 can be used to apply extrusion pressure to the bar stock, which facilitates the crushing of the bar stock.
[0084] In some alternative embodiments, such as Figure 4 As shown, in the two crushing rollers 11 arranged opposite each other, the first crushing teeth 22 of one crushing roller 11 and the first crushing teeth 22 of the other crushing roller 11 are alternately arranged along the axial direction of the first roller shaft 21. In this way, the first crushing teeth 22 of the two crushing rollers 11 can be used to crush the bar material, and interference between the first crushing teeth 22 of the two crushing rollers 11 can be avoided, thereby avoiding jamming of the first roller shaft 21 and ensuring the reliability of the rotation of the first roller shaft 21.
[0085] In some optional embodiments, the roller crusher further includes a second crushing unit 50, which is disposed on one side of the first crushing unit 10; the second crushing unit 50 includes two fine crushing rollers 51 arranged in pairs, each fine crushing roller 51 including a second roller shaft 511 and a plurality of second crushing teeth 513 circumferentially spaced along the second roller shaft 511; wherein the two fine crushing rollers 51 are arranged opposite to each other.
[0086] In this embodiment, the first crushing unit 10 can perform primary crushing of the bar stock using the first crushing tooth 22, and the second crushing unit 50 can perform secondary crushing of the bar stock using the second crushing tooth 513, so as to crush the bar stock to a suitable size.
[0087] Specifically, the first crushing unit 10 can coarsely crush the bar stock using the first crushing teeth 22 to obtain larger-sized fragments. The second crushing unit 50 is arranged to one side of the first crushing unit 10, and can further finely crush the fragments using the second crushing teeth 513 in the second crushing unit 50 to obtain smaller-sized fragments. Crushing the bar stock in multiple stages helps ensure that the surface metal of the fragments meets the standards and satisfies production requirements.
[0088] Specifically, the second crushing unit 50 can be located on the left, right or bottom side of the first crushing unit 10, and can further crush the bar stock after it has been crushed by the first crushing unit 10.
[0089] Specifically, at least one second roller can be provided on the second roller shaft 511. A ring of second crushing teeth 513 arranged circumferentially along the second roller shaft 511 constitutes a second roller. At least two second rollers can be arranged axially along the second roller shaft 511. In this embodiment, only the case of providing one second roller on the second roller shaft 511 is used as an example. The arrangement of the second rollers can refer to the arrangement of the first roller shaft. This embodiment will not elaborate further.
[0090] Specifically, the second roller shafts 511 of the two fine crushing rollers 51 can be parallel, and the second roller shafts 511 of the two fine crushing rollers 51 can move towards each other or in the same direction, etc. For example, Figure 5 and Figure 6As shown, the second roller shaft 511 of the two fine crushing rollers 51 can move towards each other. During the rotation of the second roller shaft 511, the second crushing teeth 513 of the two fine crushing rollers 51 can squeeze the two sides of the material to crush it.
[0091] Specifically, along the direction perpendicular to the second roller shaft 511, the shape of the second crushing tooth 513 can be triangular, trapezoidal, or rectangular, etc., and this embodiment does not specifically limit it.
[0092] In some embodiments, the second crushing teeth 513 of the two crushing rollers 51 are arranged alternately along the axial direction of the second roller shaft 511. In other embodiments, the projection of the second crushing tooth 513 of one crushing roller 51 onto the midpoint of the two crushing rollers 51 at least partially overlaps with the projection of the second crushing tooth 513 of the other crushing roller 51 onto the midpoint of the two crushing rollers 51, and can be specifically set with reference to the crushing roller 11 described above.
[0093] Specifically, the rotation speeds of the second roller shafts 511 of the two fine crushing rollers 51 can be the same or different. When the rotation speeds of the second roller shafts 511 of the two fine crushing rollers 51 are the same, it is easier to improve the crushing efficiency.
[0094] Optionally, the first roller shaft 21 of the two crushing rollers 11 and the second roller shaft 511 of the two fine crushing rollers 51 are parallel to each other, which can improve the convenience of using the crushing rollers 11 and the fine crushing rollers 51 together.
[0095] Furthermore, the two crushing rollers 11 arranged opposite each other may include a first coarse crushing roller 12 and a second coarse crushing roller 13, and the two fine crushing rollers 51 may include a first fine crushing roller 52 and a second fine crushing roller 53.
[0096] In some embodiments, the vertical direction is perpendicular to the axial direction of the first roller shaft 21 and the axial direction of the second roller shaft 511, respectively. In the vertical direction, the first fine crushing roller 52 is located below the first coarse crushing roller 12, and the second fine crushing roller 53 is located below the second coarse crushing roller 13. The axes of the first coarse crushing roller 12 and the second coarse crushing roller 13 are at the same height, and the axes of the first fine crushing roller 52 and the second fine crushing roller 53 are at the same height. A primary crushing space is formed between the first coarse crushing roller 12 and the second coarse crushing roller 13, and a secondary crushing space is formed between the first fine crushing roller 52 and the second fine crushing roller 53, so that the bar stock can first fall into the first crushing space 31 for primary crushing, and then fall into the second crushing space 32 for secondary crushing.
[0097] Optionally, the minimum distance between the root circles of the first coarse crushing roller 12 and the second coarse crushing roller 13 is A1, and the minimum distance between the root circles of the first fine crushing roller 52 and the second fine crushing roller 53 is A3, where A3 < A1.
[0098] In this embodiment, A3 < A1. Thus, after the first coarse crushing roller 12 and the second coarse crushing roller 13 cooperate to perform primary coarse crushing on the bar stock, the first fine crushing roller 52 and the second fine crushing roller 53 cooperate to perform secondary fine crushing on the bar stock, so that the size of the bar stock after crushing becomes smaller and smaller, making it easier to obtain smaller sized fragments.
[0099] In other embodiments, the vertical direction is perpendicular to the axial direction of the first roller shaft 21 and the axial direction of the second roller shaft 511, respectively. In the vertical direction, the first fine crushing roller 52 is located below the first coarse crushing roller 12, the second fine crushing roller 53 is located below the second coarse crushing roller 13, the axes of the first coarse crushing roller 12 and the second coarse crushing roller 13 are at the same height, and the axis of the first fine crushing roller 52 is located above the axis of the second fine crushing roller 53. A first crushing space 31 is formed between the first coarse crushing roller 12 and the second coarse crushing roller 13, a second crushing space 32 is formed between the first fine crushing roller 52 and the second coarse crushing roller 13, and a third crushing space 33 is formed between the first fine crushing roller 52 and the second fine crushing roller 53, so that the bar stock can first fall into the first crushing space 31 for primary crushing, then fall into the second crushing space 32 for secondary crushing, and then fall into the third crushing space 33 for tertiary crushing.
[0100] In other embodiments, the vertical direction is perpendicular to the axial direction of the first roller shaft 21 and the axial direction of the second roller shaft 511, respectively. In the vertical direction, the axis of the second fine crushing roller 53 is located below the axis of the first fine crushing roller 52, the axis of the first fine crushing roller 52 is located below the axis of the second coarse crushing roller 13, the axis of the second coarse crushing roller 13 is located below the axis of the first coarse crushing roller 12, a first crushing space 31 is formed between the first coarse crushing roller 12 and the second coarse crushing roller 13, a second crushing space 32 is formed between the first fine crushing roller 52 and the second coarse crushing roller 13, and a third crushing space 33 is formed between the first fine crushing roller 52 and the second fine crushing roller 53, so that the bar stock can first fall into the first crushing space 31 for primary crushing, then fall into the second crushing space 32 for secondary crushing, and then fall into the third crushing space 33 for tertiary crushing.
[0101] Optionally, the minimum distance between the tooth root circles of the first coarse crushing roller 12 and the second coarse crushing roller 13 is A1, the minimum distance between the tooth root circles of the first fine crushing roller 52 and the second coarse crushing roller 13 is A2, and the minimum distance between the tooth root circles of the first fine crushing roller 52 and the second fine crushing roller 53 is A3, where A3 < A2 < A1.
[0102] In this embodiment, A3 < A2 < A1. Thus, after primary coarse crushing of the bar stock, the first fine crushing roller 52 and the second fine crushing roller 53 work together to perform secondary fine crushing. Similarly, after primary coarse crushing of the bar stock by the first coarse crushing roller 12 and the second coarse crushing roller 13, the first fine crushing roller 52 and the second coarse crushing roller 13 work together to perform secondary fine crushing. The first fine crushing roller 52 and the second fine crushing roller 53 work together to further perform tertiary crushing of the bar stock, resulting in progressively smaller dimensions of the crushed bar stock, facilitating the production of smaller-sized fragments. Furthermore, multiple crushing stages reduce the force on the crushing teeth, thus protecting them.
[0103] In some embodiments, the minimum distance between the root circles of the two crushing rollers 11 arranged opposite each other is A1, and the diameter of the second inscribed cylindrical surface 311 is D, where 1.3D≤A1≤1.8D.
[0104] In the embodiment of the application, 1.3D≤A1≤1.8D can achieve the crushing of the bar material by using the first crushing tooth 22 to squeeze and crush it, while avoiding excessive reaction force on the first crushing tooth 22, thus ensuring the service life of the crushing roller 11.
[0105] Specifically, if A1 is too large, the size of the crushed material after primary crushing will be too large, which may cause the second roller 511 to jam; if A1 is too small, the tooth height of the first crushing tooth 22 will be too high, resulting in greater stress on the first roller 21, which may cause jamming or even tooth breakage. Maintaining a value of 1.3D≤A1≤1.8D ensures that the size of the crushed material obtained after primary crushing is more suitable for crushing by the second crushing unit 50, while simultaneously ensuring the service life of the first roller 21.
[0106] The roller crusher described in this application has at least the following advantages:
[0107] In this embodiment of the application, during the rolling process of the first roller, while the material to be crushed is restricted by the crushing groove, the protrusions on the groove wall of the crushing groove can be used to squeeze and crush the material to be crushed, which can reduce the risk of the material to be crushed floating, improve the crushing effect of the material to be crushed, and thus improve the efficiency of material crushing.
[0108] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.
[0109] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device 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 terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.
[0110] The above provides a detailed description of a crushing roller and a roller crushing device provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A crushing roller, characterized in that, include: A first roller shaft (21) has a plurality of first crushing teeth (22) distributed circumferentially along the first roller shaft (21); the first crushing teeth (22) include: a first sidewall (221) and a second sidewall (222) disposed opposite to each other. A crushing groove (24) is formed between two adjacent first crushing teeth (22); along the circumference of the first roller shaft (21), the first sidewall (221) of one of the two adjacent first crushing teeth (22) and the second sidewall (222) of the other first crushing tooth (22) constitute the groove wall of the crushing groove (24) which is arranged opposite to each other. At least one protrusion (25) is provided on the first sidewall (221) and / or the second sidewall (222).
2. The crushing roller according to claim 1, characterized in that, The protrusion (25) is located away from the end of the first roller shaft (21), and the minimum distance from the root circle of the crushing roller (11) in the radial direction of the first roller shaft (21) is H1. The first crushing tooth (22) is provided with a sidewall of the protrusion (25), away from the end of the first roller shaft (21), and in the radial direction of the first roller shaft (21), the minimum distance from the tooth root circle of the crushing roller (11) is H2; 0.4H2≤H1≤0.6H2.
3. The crushing roller according to claim 1, characterized in that, The first sidewall (221) includes one of a curved surface and an inclined surface; and / or, The second sidewall (222) includes one of a curved surface and an inclined surface.
4. The crushing roller according to claim 1, characterized in that, The crushing slot (24) has a first inscribed cylindrical surface (241) that extends axially along the first roller shaft (21); one of the first sidewall (221) and the second sidewall (222) is provided with at least one of the protrusions (25). In the same crushing slot (24), the end (A) of the protrusion (25) away from the first roller shaft (21), the end (B) of the side wall of the protrusion (25) away from the first roller shaft (21), and the wall (C) of the other side wall without the protrusion (25) pass through the first inscribed cylindrical surface (241).
5. A roller crushing device, characterized in that, Includes a first crushing unit (10), at least one of the first crushing units (10) includes two crushing rollers (11) as described in any one of claims 1-4 arranged opposite to each other.
6. The roller crusher according to claim 5, characterized in that, In the two crushing rollers (11), the crushing groove (24) on one crushing roller (11) and the crushing groove (24) on the other crushing roller (11) are arranged facing each other to form a crushing space; The crushing space has a second inscribed cylindrical surface (311) extending axially along the first roller shaft (21) of the crushing roller (11); the second inscribed cylindrical surface (311) passes through the end (A) of a protrusion (25) on the groove wall of at least one of the crushing slots (24), and / or, the groove wall of at least one of the crushing slots (24) is away from the end of the first roller shaft (21).
7. The roller crusher according to claim 6, characterized in that, The groove wall of at least one of the crushing slots (24) forming the crushing space, away from the end of the first roller shaft (21), is at a vertical distance L from the axis of the second inscribed cylindrical surface (311), where 10mm≤L≤20mm.
8. The roller crusher according to claim 7, characterized in that, When the first sidewall (221) in the crushing slot (24) forming the crushing space is above the second sidewall (222) along the vertical direction, the end of the first sidewall (221) away from the first roller (21) is spaced by a distance L from the axis of the second inscribed cylindrical surface (311). The axis of the second inscribed cylindrical surface (311), the vertical direction and the horizontal direction are perpendicular to each other.
9. The roller crusher according to claim 6, characterized in that, The minimum distance between the tooth root circles of the two crushing rollers (11) arranged opposite each other is A1, and the diameter of the second inscribed cylindrical surface (311) is D, 1.3D≤A1≤1.8D.
10. The roller crusher according to claim 6, characterized in that, The first inscribed cylindrical surface (241) of at least one of the breakage slots (24) forming the breakage space coincides with the second inscribed cylindrical surface (311).
11. The roller crusher according to claim 6, characterized in that, In the two crushing rollers (11) arranged opposite each other, the first crushing teeth (22) of one crushing roller (11) and the first crushing teeth (22) of the other crushing roller (11) are alternately arranged along the axial direction of the first roller shaft (21); or, In the two crushing rollers (11) arranged opposite to each other, the projection of the first crushing tooth (22) of one crushing roller (11) on the midpoint of the two crushing rollers (11) is at least partially coincident with the projection of the first crushing tooth (22) of the other crushing roller (11) on the midpoint of the two crushing rollers (11).
12. The roller crusher according to claim 5, characterized in that, The roller crusher also includes a second crushing unit (50), which is disposed on one side of the first crushing unit (10); The second crushing unit (50) includes two fine crushing rollers (51) arranged in pairs. Each fine crushing roller (51) includes a second roller shaft (511) and a plurality of second crushing teeth (513) distributed circumferentially along the second roller shaft (511). The two fine crushing rollers (51) are arranged opposite to each other.
13. The roller crusher according to claim 12, characterized in that, The first roller shafts (21) of the two crushing rollers (11) and the second roller shafts (511) of the two fine crushing rollers (51) are parallel to each other; The two crushing rollers (11) arranged opposite to each other include a first coarse crushing roller (12) and a second coarse crushing roller (13), and the two fine crushing rollers (51) arranged opposite to each other include a first fine crushing roller (52) and a second fine crushing roller (53). In the vertical direction, the first fine crushing roller (52) is located below the first coarse crushing roller (12), and the second fine crushing roller (53) is located below the second coarse crushing roller (13). The axes of the first coarse crushing roller (12) and the second coarse crushing roller (13) are at the same height, and the axis of the first fine crushing roller (52) is located above the axis of the second fine crushing roller (53). Alternatively, in the vertical direction, the axis of the second fine crushing roller (53) is located below the axis of the first fine crushing roller (52), the axis of the first fine crushing roller (52) is located below the axis of the second coarse crushing roller (13), and the axis of the second coarse crushing roller (13) is located below the axis of the first coarse crushing roller (12). The vertical direction is perpendicular to the axial direction of the first roller shaft (21) and the axial direction of the second roller shaft (511), respectively. A first crushing space (31) is formed between the first coarse crushing roller (12) and the second coarse crushing roller (13), a second crushing space (32) is formed between the first fine crushing roller (52) and the second coarse crushing roller (13), and a third crushing space (33) is formed between the first fine crushing roller (52) and the second fine crushing roller (53).
14. The roller crusher according to claim 13, characterized in that, The minimum distance between the tooth root circle of the first coarse crushing roller (12) and the tooth root circle of the second coarse crushing roller (13) is A1, the minimum distance between the tooth root circle of the first fine crushing roller (52) and the tooth root circle of the second coarse crushing roller (13) is A2, and the minimum distance between the tooth root circle of the first fine crushing roller (52) and the tooth root circle of the second fine crushing roller (53) is A3; wherein, A3 < A2 < A1.