CN216063546U - Broken tooth piece and single roll crusher - Google Patents
Broken tooth piece and single roll crusher Download PDFInfo
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- CN216063546U CN216063546U CN202121617535.5U CN202121617535U CN216063546U CN 216063546 U CN216063546 U CN 216063546U CN 202121617535 U CN202121617535 U CN 202121617535U CN 216063546 U CN216063546 U CN 216063546U
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- working face
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- crushing tooth
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Abstract
The utility model discloses a crushing tooth piece and a single-roller crusher, and solves the technical problems of poor wear resistance and short service life of the crushing tooth piece in the prior art. The surface of this broken tooth piece includes the working face and is located two non-working faces of broken tooth piece thickness direction and relative setting, and the working face includes that positive working face, reverse working face and tooth top are connected the face, all is provided with the gear cutting on positive working face and the reverse working face, sets up on positive working face, reverse working face and two non-working faces and all has the cladding to have the wearing layer, and the wearing layer comprises the wear-resisting piece that the interval set up. The crushing tooth piece can realize crushing work along with the forward rotation and the reverse rotation of the single-roll crusher, and can reversely rotate to utilize the other side to crush after the unilateral abrasion fails. Through setting up wear-resisting piece at broken tooth piece surface subregion piece interval, guarantee that broken tooth piece wearing and tearing are even, avoid the condition that the wearing layer large tracts of land fracture dropped, improve wear resistance, extension maintenance cycle and reduce the maintenance cost.
Description
Technical Field
The utility model relates to the technical field of sinter crushing equipment, in particular to a crushing tooth piece and a single-roller crusher.
Background
The single-roller crusher is used for crushing high-temperature sintering ores, the crushing tooth sheets of the single-roller crusher bear abrasion of the sintering ores at high temperature for a long time, and the single-roller crusher belongs to large equipment and is important equipment of a sintering production line, and the overhaul period of the single-roller crusher must be synchronous with the overhaul of an enterprise, so that the overhaul period and the service life of the single-roller crusher are particularly important to be prolonged. However, at present, the service life of a crushing tooth piece of a domestic large-scale sintering machine single-roll crusher is short, the service life of the crushing tooth piece is prolonged by adopting a method of casting an alloy block on the surface of the crushing tooth piece, but the technical problems of poor wear resistance and short service life still exist, the alloy block is worn quickly, the abrasion speed of the tooth piece is increased rapidly, the crushing capacity is reduced, only the scheduled maintenance and replacement can be carried out, the maintenance interval period is short, and the maintenance cost is high.
In conclusion, the crushing tooth piece in the prior art has the technical problems of poor wear resistance, short service life, short maintenance interval period and high maintenance cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a crushing tooth piece and a single-roller crusher, which obviously improve the wear resistance of the tooth piece and have long service cycle.
The technical scheme adopted for achieving the purpose of the utility model is that the crushing tooth piece is applied to a single-roller crusher, the outer surface of the crushing tooth piece comprises a working surface and two non-working surfaces which are positioned in the thickness direction of the crushing tooth piece and are oppositely arranged, the working surface comprises a forward working surface, a reverse working surface and a tooth top connecting surface, cutting teeth are arranged on the forward working surface and the reverse working surface, wear-resistant layers are respectively coated on the forward working surface, the reverse working surface and the two non-working surfaces, and each wear-resistant layer is composed of wear-resistant blocks which are arranged at intervals.
Further, the surface of the crushing tooth piece is provided with an installation grid, and each wear-resisting block is arranged in the installation grid respectively.
Furthermore, the crushing tooth piece also comprises a partition plate, the partition plate is arranged on the working surface and the non-working surface and is connected with the base body of the crushing tooth piece, and the installation grid is arranged on the partition plate.
Further, the wear-resistant blocks are arranged in the mounting grid in a surfacing mode.
Furthermore, the distance between two adjacent wear-resistant blocks is d, and d is less than or equal to 3 mm.
Further, the thickness H of the wear-resistant layer on the working surface is 45-55 mm, and the thickness H of the wear-resistant layer on the non-working surface is 20-30 mm.
Further, the forward working face and the reverse working face are both provided with at least one cutting tooth.
Furthermore, two cutting teeth are arranged on the forward working face and the reverse working face at intervals, and the cutting teeth close to the roll shaft of the single-roll crusher protrude out of the cutting teeth far away from the roll shaft.
Further, the protruding height difference of the cutting teeth close to the roller shaft is 10mm-20 mm.
Based on the same inventive concept, the utility model also provides a single-roller crusher, which comprises a roller shaft and at least two crushing tooth plate groups, wherein the at least two crushing tooth plate groups are distributed at intervals along the axial direction of the roller shaft; each crushing tooth piece group is composed of a plurality of crushing tooth pieces, and in the same crushing tooth piece group, the crushing tooth pieces are arranged at intervals along the circumferential direction of the roll shaft and are positioned on the same cross section.
According to the technical scheme, the crushing tooth piece is applied to a single-roller crusher, the outer surface of the crushing tooth piece comprises a working surface and two non-working surfaces which are located in the thickness direction of the crushing tooth piece and are oppositely arranged, the working surface comprises a forward working surface, a reverse working surface and a tooth top connecting surface, cutting teeth are arranged on the forward working surface and the reverse working surface and are used for crushing materials, and the crushing tooth piece is designed to be of a structure with the forward working surface and the reverse working surface, so that the crushing tooth piece can realize crushing work along with forward rotation and reverse rotation of the single-roller crusher. Set up all the cladding on positive working face, reverse working face and two non-working faces and have the wearing layer, the wearing layer comprises the wear-resisting piece that the interval set up, sets up wear-resisting piece through the sub-block interval in broken tooth piece surface, guarantees that broken tooth piece wearing and tearing are even, and the condition that the wearing layer large tracts of land fracture dropped can not appear, has improved wear resistance, has prolonged maintenance cycle and has reduced the maintenance cost.
The utility model provides a single-roller crusher, which comprises a roller shaft and at least two crushing tooth sheet groups, wherein the at least two crushing tooth sheet groups are distributed at intervals along the axial direction of the roller shaft, each crushing tooth sheet group is composed of a plurality of crushing tooth sheets, and in the same crushing tooth sheet group, the crushing tooth sheets are arranged at intervals along the circumferential direction of the roller shaft and are positioned on the same cross section, so that the working area of contact with materials is increased, and the crushing strength is improved. The single-roller crusher provided by the utility model has all the beneficial effects of the crushing tooth piece, the double-working-face structure of the crushing tooth piece enables one side of the crushing tooth piece to be reversely utilized after being worn and failed, the wear-resistant blocks are arranged on the outer surface of the crushing tooth piece at intervals, so that the crushing tooth piece is uniformly worn, a wear-resistant layer is prevented from being cracked and falling in a large area, the maintenance period is prolonged, the maintenance cost is reduced, and the integral service life of the crushing tooth piece is prolonged.
Drawings
Fig. 1 is a schematic perspective view of a crushing tooth piece provided in embodiment 1 of the present invention;
FIG. 2 is a schematic front view of the crushing tooth plate of FIG. 1;
FIG. 3 is a side view of the crushing tooth plate of FIG. 1;
fig. 4 is a schematic cross-sectional view of a single-roll crusher according to example 2 of the present invention.
Description of the drawings: 1-crushing tooth sheet, 2-working face, 21-forward working face, 22-reverse working face, 3-cutting tooth, 4-wear-resistant block, 5-partition plate and 6-roll shaft.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
In order to solve the technical problems of poor wear resistance, short service life, short maintenance interval period and high maintenance cost of the crushing tooth piece in the prior art, the utility model provides the crushing tooth piece and a single-roller crusher, which obviously improve the wear resistance of the tooth piece and have long service life. The utility model is described in detail below by means of two examples:
example 1
As shown in fig. 1-3, the crushing tooth piece 1 provided by the present invention is applied to a single-roll crusher, the outer surface of the crushing tooth piece 1 comprises a working surface 2 and two non-working surfaces which are located in the thickness direction of the crushing tooth piece 1 and are oppositely arranged, the working surface comprises a forward working surface 21, a reverse working surface 22 and a tooth top connecting surface, the tooth top connecting surface is transitionally connected with the forward working surface 21 and the reverse working surface 22, the forward working surface 21 and the reverse working surface 22 are both provided with cutting teeth 3, and the cutting teeth 3 are used for crushing materials. Forward working face 21, it has the wearing layer to set up equal cladding on reverse working face 22 and two non-working faces, the wearing layer comprises wear-resisting piece 4 that the interval set up, through designing broken tooth piece 1 for having forward working face 21 and reverse working face 22's structure, make broken tooth piece 1 can both realize broken work along with single roll crusher corotation and reversal, set up wear-resisting piece 4 through partitioning the piece interval on 1 surface of broken tooth piece, guarantee that 1 wearing and tearing of broken tooth piece are even, and the condition that the wearing layer large tracts of land fracture dropped can not appear, and the wear resistance is improved, the extension maintenance cycle and the reduction maintenance cost.
In order to arrange the wear-resistant blocks 4 on the working surface 2 and the non-working surface in a blocking manner, the surface of the crushing tooth piece 1 is provided with mounting grids, and each wear-resistant block 4 is arranged in each mounting grid.
In order to avoid the processing of installing grids on the base metal of the crushing tooth piece 1 and ensure the strength of the crushing tooth piece 1, the crushing tooth piece 1 provided by the utility model also comprises a partition plate 5, wherein the partition plate 5 is arranged on the working surface 2 and the non-working surface, the partition plate 5 is connected with the base body of the crushing tooth piece 1, and meanwhile, the installing grids are preset on the partition plate 5, so that the installation of the wear-resistant block 4 is facilitated. In this embodiment, the spacer 5 is welded to the base of the crushing blade 1.
The utility model does not specifically limit the setting method of the wear-resistant blocks 4, but the applicant finds that if the wear-resistant blocks 4 are set by adopting a conventional welding means, in order to reserve welding positions, gaps among the wear-resistant blocks 4 are inevitably large, materials in the gaps are easily worn off to cause the blocks to fall off, and later wear forms uneven waves, in order to enable the overall smoothness of the wear-resistant blocks 4 of the working surface 2, in the embodiment, the wear-resistant blocks 4 are welded in an installation grid in a surfacing mode, so that the distance between the adjacent wear-resistant blocks 4 is ensured, and the overall balance of the wear-resistant blocks 4 is improved.
In order to further prolong the service life of the wear-resistant layer and the crushing tooth piece 1, in the embodiment, the distance between two adjacent wear-resistant blocks 4 on the working surface 2 is d, and d is less than or equal to 3 mm. In order to ensure that after the crushing work for a period of time, even when the later period abrasion degree is quite large, the abrasion-resistant layer of the working face 2 is a relatively complete plane, preferably, the distance between the abrasion-resistant blocks 4 is about 2mm, the abrasion-resistant blocks 4 arranged at intervals in a subarea are equivalent to a whole, the whole abrasion is achieved, the mutual influence is avoided, and the technical problems that the abrasion speed of the base material of the crushing tooth piece 1 is rapidly increased and the crushing capacity is reduced due to the fact that a large piece of the abrasion-resistant layer falls off are solved.
In order to achieve the best protection performance and crushing performance, in the embodiment, the thickness H of the wear-resistant layer on the working surface 2 is 45 mm-55 mm, and the thickness H of the wear-resistant layer on the non-working surface is 20 mm-30 mm.
In order to realize the technical effects that the cutting teeth 3 are worn successively and the service life of the crushing tooth piece 1 is prolonged, the crushing tooth piece 1 provided by the utility model is provided with at least one cutting tooth 3 on the forward working surface 21 and the reverse working surface 22, on one hand, the crushing strength can be increased, on the other hand, after one cutting tooth 3 is worn, the crushing treatment can still be carried out through the rest cutting teeth 3, and the service life of the crushing tooth piece 1 is prolonged.
In this embodiment, two cutting teeth 3 are disposed on the forward working face 21 and the reverse working face 22 at intervals, and the cutting teeth 3 close to the roller shaft of the single-roll crusher protrude from the cutting teeth 3 far away from the roller shaft, so that the protruding cutting teeth 3 are preferentially used during crushing, and the cutting teeth 3 at the end portions are used as spare tooth heads.
The height difference between the two cutting teeth 3 is not particularly limited, and in order to achieve a better material crushing effect, in the embodiment, the protruding height difference of the cutting teeth 3 close to the roller shaft is preferably 10mm to 20 mm.
At present, a single-head design is adopted for crushing teeth 1 of a single-roller crusher of a domestic large-scale sintering machine, the single-head crushing teeth only operate in a single direction, the service life of the crushing teeth 1 is prolonged by adopting a mode of casting an alloy block on the working surface of the crushing teeth, the abrasion loss of the alloy block and a cast tooth base material is inconsistent in use, the alloy block protrudes outwards, the base material sinks inwards, the alloy block easily drops when reaching a certain degree, and after the alloy block is abraded, the abrasion speed of the base material rises sharply, the crushing capacity is reduced, and only the repair and replacement can be made.
Compared with the prior art, the crushing tooth piece 1 provided by the utility model is provided with the forward working surface 21 and the reverse working surface 22, so that the crushing tooth piece 1 on the other side can be reversely utilized after the single-side abrasion of the crushing tooth piece 1 fails, and the abrasion-resistant blocks 4 are arranged on the outer surface of the crushing tooth piece 1 at intervals, so that the crushing tooth piece 1 is uniformly abraded, the maintenance period is prolonged, the maintenance cost is reduced, and the integral service life of the crushing tooth piece 1 is prolonged.
Example 2
As shown in fig. 4, based on the same inventive concept, the present invention further provides a single-roll crusher, which includes a roll shaft 6 and at least two crushing tooth groups, wherein the at least two crushing tooth groups are distributed at intervals along the axial direction of the roll shaft 6, each crushing tooth group is composed of a plurality of crushing tooth sheets 1 provided in embodiment 1, and in the same crushing tooth group, each crushing tooth sheet 1 is arranged at intervals along the circumferential direction of the roll shaft 6 and is located on the same cross section to increase the working area contacting with the material and improve the crushing strength, and the number and the distribution of the crushing tooth sheets 1 are not limited by the present invention.
The axial spacing distribution along the roll shaft 6 is not particularly limited, for example, two adjacent crushing tooth blade groups can be different in number or the same in number, and for example, two adjacent crushing tooth blade groups with the same number are overlapped in the radial direction or have an included angle.
The single-roller crusher provided by the utility model has all the beneficial effects of the crushing tooth piece 1, the double-working-face structure of the crushing tooth piece 1 enables one side of the crushing tooth piece 1 to be reversely utilized after being worn and failed, the wear-resistant blocks 4 are arranged on the outer surface of the crushing tooth piece 1 at intervals, so that the crushing tooth piece 1 is uniformly worn, the wear-resistant layer is not cracked in a large area and falls off, the maintenance period is prolonged, the maintenance cost is reduced, and the integral service life of the crushing tooth piece 1 is prolonged.
Through the embodiment, the utility model has the following beneficial effects or advantages:
1) the crushing tooth piece provided by the utility model is provided with the forward working face and the reverse working face, so that the crushing tooth piece on the other side can be reversely utilized after the single-side abrasion of the crushing tooth piece fails, and the abrasion-resistant blocks are arranged on the outer surface of the crushing tooth piece at intervals in a partitioning manner, so that the crushing tooth piece is uniformly abraded, the maintenance period is prolonged, the maintenance cost is reduced, and the integral service life of the crushing tooth piece is prolonged.
2) According to the crushing tooth piece provided by the utility model, the wear-resistant blocks arranged at intervals in a subarea are equivalent to a whole, the crushing tooth piece belongs to integral abrasion, even if the later abrasion degree is large, the wear-resistant layer of the working surface is a relatively complete plane, the wear-resistant blocks cannot influence each other, and the technical problems that the abrasion speed of the base material of the crushing tooth piece is rapidly increased and the crushing capacity is reduced due to the fact that large wear-resistant layers fall off are solved.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a broken tooth piece is applied to single roll crusher, its characterized in that, the surface of broken tooth piece includes the working face and is located two non-working faces that broken tooth piece thickness direction and relative set up, the working face includes positive working face, reverse working face and tooth top connection face, positive working face with all be provided with on the reverse working face and cut the tooth, positive working face reverse working face and two set up equal cladding on the non-working face and have the wearing layer, the wearing layer comprises the wear-resisting piece that the interval set up.
2. The crushing tooth blade according to claim 1, wherein a surface of said crushing tooth blade is provided with a mounting grid, and each of said wear-resistant blocks is provided in said mounting grid, respectively.
3. The breaking tooth as claimed in claim 2 further comprising a spacer disposed on said working face and said non-working face and connected to said base of said breaking tooth, said spacer having said mounting grid disposed thereon.
4. A breaker tooth plate according to claim 2 wherein said wear resistant blocks are provided in said mounting grid by means of weld overlay.
5. The crushing tooth plate according to any one of claims 1-3, wherein the distance between two adjacent wear-resistant blocks is d, and d is less than or equal to 3 mm.
6. The crushing tooth plate according to claim 4, wherein the thickness H of the wear-resistant layer on the working face is 45mm to 55mm, and the thickness H of the wear-resistant layer on the non-working face is 20mm to 30 mm.
7. The breaker blade of claim 1 wherein said forward working surface and said reverse working surface each have at least one cutting tooth disposed thereon.
8. The breaker tooth plate of claim 7 wherein said forward working surface and said reverse working surface are spaced apart by two cutting teeth, said cutting teeth adjacent a roll shaft of said single roll crusher projecting beyond said cutting teeth remote from said roll shaft.
9. The crushing tooth blade according to claim 8, wherein the difference in the protruding height of said cutting teeth near said roller shaft is 10mm to 20 mm.
10. A single-roller crusher is characterized by comprising a roller shaft and at least two crushing tooth plate groups, wherein the at least two crushing tooth plate groups are distributed at intervals along the axial direction of the roller shaft; each crushing tooth group is composed of a plurality of crushing teeth as claimed in any one of claims 1 to 9, and in the same crushing tooth group, the crushing teeth are arranged at intervals along the circumferential direction of the roller shaft and are positioned on the same cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121617535.5U CN216063546U (en) | 2021-07-16 | 2021-07-16 | Broken tooth piece and single roll crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121617535.5U CN216063546U (en) | 2021-07-16 | 2021-07-16 | Broken tooth piece and single roll crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216063546U true CN216063546U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121617535.5U Active CN216063546U (en) | 2021-07-16 | 2021-07-16 | Broken tooth piece and single roll crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216063546U (en) |
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2021
- 2021-07-16 CN CN202121617535.5U patent/CN216063546U/en active Active
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