Multi-edge-surface roller type crusher suitable for materials easy to slip
By designing a multi-faceted roller crusher with regular n-gon rollers and ceramic roller surface layers, the problem of low crushing efficiency of slippery materials is solved, achieving efficient crushing and cost control.
Patent Information
- Application Number
- CN202422708861.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-07
AI Technical Summary
When processing slippery materials, the existing roller crusher has the problems of low crushing efficiency and easy slipping of materials, especially for smooth or insufficiently tough materials, which are difficult to extrude effectively. In particular, the smooth materials in the existing technology are especially smooth graphite and resin polymers with certain toughness and brittleness.
The roller design adopts two rollers with regular polygonal shape. The longitudinal section of the roller is a regular n-gon. The edges are extruded face to face to form an extrusion groove. The ceramic roller surface layer improves the hard extrusion strength. When rotating, it generates a downward driving force to prevent the material from slipping.
It improves the crushing efficiency, avoids the material slipping and jumping, enhances the extrusion strength and reduces the production cost.
Smart Images
Figure CN223351766U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of crushing equipment, in particular to a multi-faceted roller crusher suitable for materials prone to slipping. Background Art
[0002] The basic principle of a roller crusher is to use a motor to drive two parallel mounted rollers (ceramic rollers) to rotate relative to each other, allowing the material to pass between the two rollers and be crushed by extrusion. The longitudinal cross-section of the roller used in the common roller crushers on the market is circular. For example, our company's existing patent CN209123994 discloses a full-ceramic roller crusher with a uniform material guiding function. The longitudinal cross-section of the ceramic roller used in this patent is circular, and the surface is a smooth ceramic surface. When this type of ceramic roller is crushing, the material passes between the two rollers and is subjected to sliding friction and extrusion force. For some materials with relatively smooth surfaces (such as graphite) or materials with a certain degree of toughness but insufficient brittleness (such as resin polymers), it will be difficult to bite the material, and the material will easily slip and not enter the gap, resulting in low crushing efficiency. In addition, the effective extrusion area of the roller with this structure is small. Utility Model Content
[0003] The utility model aims to provide a multi-faceted roller crusher suitable for materials that are prone to slipping.
[0004] The innovation of the present utility model lies in that the two rollers of the present application are regular n-gons, and when the edges of the two rollers are squeezed face to face, it is a hard extrusion with higher extrusion strength; and when the rollers rotate, the downward driving force generated can prevent the material from slipping and improve the crushing efficiency.
[0005] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is:
[0006] A multi-faceted roller crusher suitable for easily slippery materials includes a casing, a feed port is provided at the top of the casing, a discharge port is provided at the bottom of the casing, the interior of the casing is a crushing chamber, and two parallel rollers are provided in the crushing chamber, and the longitudinal sections of the two rollers are both regular n-gons, n>=6, and n is a positive integer; an extrusion groove is formed between the two opposite facets of the two rollers, and a rotating shaft is provided at the center of the two rollers, both ends of the rotating shaft are respectively connected to bearings provided on the casing, and one end of the rotating shaft is connected to a drive motor.
[0007] Furthermore, both ends of the rotating shaft are respectively connected to sliding bearings provided on the housing, and a gap adjustment rod is provided on the sliding bearing.
[0008] Furthermore, the two rollers have the same structure, which comprises a metal core layer, a transition bonding layer and a ceramic roller surface layer from the inside to the outside.
[0009] Furthermore, the thickness of the ceramic roller surface layer is not less than 2 cm.
[0010] The beneficial effects of the utility model are:
[0011] First, because the rollers of this application have a regular n-gonal longitudinal cross-section, an extrusion groove of a certain width and height is formed between the two opposing edges of the two rollers. When the edges of the two rollers face each other, the sliding friction extrusion of the original roller crusher (with a circular longitudinal cross-section) is transformed into a hard extrusion. The extrusion angle is much smaller than that of traditional rollers with a circular longitudinal cross-section, resulting in higher extrusion strength. The material can be quickly crushed and reduced in size between the two extrusion surfaces. In addition, the downward driving force generated by the regular polygonal rollers during rotation prevents material slippage and "jumping" of smooth materials, thereby improving crushing efficiency. Furthermore, even if the edges of one roller do not align synchronously with the edges of the other roller, a downward driving force can still be generated, preventing material slippage and "jumping" of smooth materials, thereby improving crushing efficiency.
[0012] Second: Compared with the gear-type roller, the roller of the present application has a simpler production process and lower production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of the utility model.
[0014] Figure 2 It is a top view of the utility model.
[0015] Figure 3 Schematic diagram of the roller structure.
[0016] In the figure: 10 is the casing, 11 is the feed port, 12 is the discharge port, 13 is the crushing chamber, 20 is the roller, 21 is the metal core layer, 22 is the transition bonding layer, 23 is the ceramic roller surface layer, 30 is the rotating shaft, 40 is the bearing, 50 is the sliding bearing, 60 is the driving motor, and 70 is the gap adjustment rod. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.
[0018] A multi-faceted roller crusher suitable for slippery materials includes a housing 10, a feed port 11 is provided on the top of the housing 10, a discharge port 12 is provided on the bottom of the housing 10, a crushing chamber 13 is provided inside the housing 10, and two rollers 20 are arranged in parallel in the crushing chamber 13. The longitudinal sections of the two rollers 20 are both regular n-gons, where n>=6, and n is a positive integer; an extrusion groove 24 is formed between the two opposite facets of the two rollers 20 (refer to Figure 3), a rotating shaft 30 is set in the center of the two rollers 24, both ends of the rotating shaft 30 are respectively connected to the bearings 40 set on the housing 10, and one end of the rotating shaft 30 is connected to the driving motor 60.
[0019] Furthermore, there's a linkage between the number of facets and their depth (i.e., the distance a single facet descends relative to its original circumferential vertex). Given a fixed roller 20 speed, the more facets there are, the more densely packed they are (i.e., the larger the number of sides n in a regular n-gon), and the more frequently they squeeze each other, theoretically increasing the crushing efficiency. However, if the facets are already in contact, the number of facets (i.e., the number of sides in a regular n-gon) cannot be increased. A roller 20 with many facets but a small facet depth is suitable for crushing smaller materials that easily engage the effective crushing zone and where the desired output is as small as possible. A roller 20 with fewer facets but a large facet depth is suitable for crushing larger materials that are less likely to engage the effective crushing zone, but the resulting output will be coarser. In this case, two or more layers of rollers 20 can be combined in an upper and lower arrangement, first coarsening and then finer, to achieve continuous processing of large, slippery materials.
[0020] Furthermore, both ends of the rotating shaft 20 are respectively connected to sliding bearings 50 provided on the housing 10 , and a gap adjustment rod 70 is provided on the sliding bearing 50 .
[0021] Furthermore, the gap adjustment rod 70 includes a screw, a spring sleeved on the screw, and an adjustment handle provided at the free end of the screw. The structure of the gap adjustment rod 70 is prior art and will not be described in detail here.
[0022] Furthermore, the gap adjustment rod 70 is used to adjust the gap distance between the two rollers 20 .
[0023] Furthermore, the two rollers 20 have the same structure, which comprises a metal core layer 21 , a transition bonding layer 22 and a ceramic roller surface layer 23 from the inside to the outside.
[0024] Furthermore, the thickness of the ceramic roller surface layer 23 is not less than 2 cm, and not less than 2 cm can ensure the strength of the ceramic roller surface layer 23 .
[0025] The embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
Claims
1. A multi-faceted roller crusher suitable for easily slippery materials, comprising a housing, a feed inlet at the top of the housing, a discharge outlet at the bottom of the housing, a crushing chamber within the housing, and two parallel rollers disposed within the crushing chamber, characterized in that: The longitudinal sections of the two rollers are both regular n-gons, n>=6, and n is a positive integer; an extrusion groove is formed between the two opposite edges of the two rollers, and a rotating shaft is set in the center of the two rollers, the two ends of the rotating shaft are respectively connected to the bearings set on the casing, and one end of the rotating shaft is connected to the drive motor.
2. A multi-faceted roller crusher suitable for slippery materials according to claim 1, characterized in that: Both ends of the rotating shaft are respectively connected to sliding bearings arranged on the casing, and a gap adjustment rod is arranged on the sliding bearing.
3. The multi-faceted roller crusher suitable for slippery materials according to claim 1, characterized in that: The two rollers have the same structure, which comprises a metal core layer, a transition bonding layer and a ceramic roller surface layer from the inside to the outside.
4. The multi-faceted roller crusher suitable for slippery materials according to claim 3, characterized in that: The thickness of the ceramic roller surface layer is not less than 2 cm.