CN212820359U - Screening and crushing device - Google Patents
Screening and crushing device Download PDFInfo
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- CN212820359U CN212820359U CN202021563150.0U CN202021563150U CN212820359U CN 212820359 U CN212820359 U CN 212820359U CN 202021563150 U CN202021563150 U CN 202021563150U CN 212820359 U CN212820359 U CN 212820359U
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- teeth
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Abstract
The utility model discloses a screening and crushing device, which comprises a roller and screening and crushing teeth arranged outside the roller, wherein the screening and crushing teeth comprise plate teeth, wear-resistant main teeth and protective teeth; the inner ends of the plate teeth are fixedly connected to the outside of the roller; the wear-resistant main teeth are polygonal teeth and are connected to the back parts of the plate teeth; the protection tooth is connected to the plate tooth back and the plate tooth root. The utility model designs the screening and crushing teeth as assembling parts, which are composed of plate teeth, wear-resistant main teeth and protective teeth; the back of the plate tooth is provided with a hard alloy irregular polygonal wear-resistant main tooth which is matched with the shape of the plate tooth and has excellent wear resistance, and the back, the root and the reinforcing ribs of the plate tooth are provided with different numbers of hard alloy cylindrical protective teeth with excellent wear resistance; when in actual use, the wear-resistant main teeth and the protection teeth play a role of protecting the plate teeth and can delay the wear of the plate teeth, the crushing and grading efficiency of the screening and crushing device is improved, and the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of ore screening crushing equipment, especially, relate to a screening breaker.
Background
Large-size ores mined from shale oil ores, large-size coal blocks mined from coal and the like need to be crushed for multiple times to a certain specification, and ore washing and ore dressing can be carried out. The current crushing is 2-4 grades of crushing by a screening crusher, and a crushing plate and plate teeth of the crushing plate are all made of steel with smooth surfaces, as shown in figure 1. Due to the abrasive wear mechanism of the ore, the wear speed of the plate tooth is high, and related enterprises generally adopt a mode of coating and welding wear-resistant materials on main wear surfaces to delay wear in practical use, but the operation is complex, the effect is poor, and the ore screening, crushing and grading efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, thereby provide a screening breaker that wear-resisting effectual can guarantee ore screening crushing classification efficiency.
The utility model provides a screening and crushing device, which comprises a roller and screening and crushing teeth arranged outside the roller, wherein the screening and crushing teeth comprise plate teeth, wear-resistant main teeth and protective teeth; the inner ends of the plate teeth are fixedly connected to the outside of the roller; the wear-resistant main teeth are polygonal teeth and are connected to the back parts of the plate teeth; the protection tooth is connected to the plate tooth back and the plate tooth root.
The device also comprises a reinforcing rib, wherein the reinforcing rib is arranged along the circumferential direction of the outer ring of the roller and is connected between the two adjacent plate teeth.
Furthermore, a plurality of protection teeth are uniformly distributed on the reinforcing ribs.
Preferably, the plate teeth are plate bodies with flat surfaces, and the inner end surfaces of the plate teeth are matched with the arc surfaces of the roller.
In order to improve the wear-resisting effect, the wear-resisting main teeth are hard alloy polygonal wear-resisting main teeth, and the outer end faces of the wear-resisting main teeth are matched with the outer end faces of the plate teeth.
In order to further improve the wear-resisting effect, the protection tooth is a hard alloy cylindrical tooth, and the protection tooth is axially connected to the root of the plate tooth along the roller and radially connected to the back of the plate tooth along the roller.
Preferably, the protective teeth have a diameter of 8 to 15mm and a height of 8 to 40 mm.
In a specific embodiment, 2-4 protection teeth are arranged on the back of the plate tooth, and 2-10 protection teeth are arranged on two sides of the root of the plate tooth respectively; 2-6 protective teeth are arranged on the reinforcing ribs.
The utility model designs the screening and crushing teeth as assembling parts, which are composed of plate teeth, wear-resistant main teeth and protective teeth; the back of the plate tooth is provided with a hard alloy irregular polygonal wear-resistant main tooth which is matched with the shape of the plate tooth and has excellent wear resistance, and the back, the root and the reinforcing ribs of the plate tooth are provided with different numbers of hard alloy cylindrical protective teeth with excellent wear resistance; when in actual use, the wear-resistant main teeth and the protection teeth play a role of protecting the plate teeth and can delay the wear of the plate teeth, the crushing and grading efficiency of the screening and crushing device is improved, and the cost is reduced.
Drawings
Fig. 1 is a schematic view of a conventional sieving crushing plate tooth.
Fig. 2 is an assembly diagram of a preferred embodiment of the present invention.
Sequence numbers of the drawings:
1, rolling;
2-screening crushing teeth, 21-plate teeth, 22-wear-resistant main teeth and 23-protective teeth;
and 3, reinforcing ribs.
Detailed Description
As shown in figure 2, the screening and crushing device disclosed by the embodiment comprises a roller 1 and screening and crushing teeth 2 arranged outside the roller, wherein the screening and crushing teeth 2 on the same circumference are connected into a gear ring through reinforcing ribs 3.
The screening and crushing tooth 2 is an assembly part and is formed by assembling a plate tooth 21, a wear-resistant main tooth 22 and a protection tooth 23. The plate tooth 21 is a plate body with a flat surface, and the inner end surface of the plate tooth is matched with the arc surface of the roller.
The wear-resistant main teeth 22 are irregular polygonal teeth which are matched with the shape of the plate teeth and have excellent wear resistance, the wear-resistant main teeth are made of hard alloy, and the wear-resistant main teeth 22 can be fixed on the back of the plate teeth in a welding/bonding/matching assembly mode and the like so as to improve the wear resistance.
The protection teeth 23 are hard alloy cylindrical teeth, the diameter of the protection teeth is 8-15mm, the height of the protection teeth is 8-40mm, 2 protection teeth are arranged on the back of the plate tooth, 6 protection teeth are respectively arranged on two sides of the root of the plate tooth during assembly, the protection teeth on the root of the plate tooth are axially arranged along the roller, and the protection teeth on the back of the plate tooth and the reinforcing ribs are radially arranged along the roller. And 3 protective teeth are arranged on the reinforcing ribs.
The strengthening rib 3 is steel system circular arc muscle, and its radian matches in the outer lane of cylinder, and the inner of strengthening rib welds outside the cylinder, both ends link to each other with two board teeth respectively, and each strengthening rib links into the round with each screening damage tooth on the same circumference, improves the wholeness.
Compare in present screening crushing tooth, the utility model provides a screening crushing tooth has that wear resistance is good, advantage that crushing classification efficiency is high, has solved the problem that screening crushing board tooth wearing and tearing are faster, crushing classification efficiency is low among the hierarchical crushing process such as current jumbo size ore coal cinder. The crushing and grading efficiency of the screening and crushing device is improved, and the cost is reduced.
Claims (8)
1. The utility model provides a screening breaker, includes the cylinder and sets up the broken tooth of screening outside the cylinder, its characterized in that: the screening and crushing teeth comprise plate teeth, wear-resistant main teeth and protective teeth; the inner ends of the plate teeth are fixedly connected to the outside of the roller; the wear-resistant main teeth are polygonal teeth and are connected to the back parts of the plate teeth; the protection tooth is connected to the plate tooth back and the plate tooth root.
2. A screen crushing apparatus as claimed in claim 1, wherein: the device also comprises a reinforcing rib, wherein the reinforcing rib is arranged along the circumferential direction of the outer ring of the roller and is connected between the two adjacent plate teeth.
3. A screen crushing apparatus as claimed in claim 2, wherein: the reinforcing ribs are uniformly distributed with a plurality of protection teeth.
4. A screen crushing apparatus as claimed in claim 1, wherein: the plate teeth are plate bodies with smooth surfaces, and the inner end surfaces of the plate teeth are matched with the arc surfaces of the rollers.
5. A screen crushing apparatus as claimed in claim 1, wherein: the wear-resistant main teeth are hard alloy polygonal wear-resistant main teeth, and the outer end faces of the wear-resistant main teeth are matched with the outer end faces of the plate teeth.
6. A screen crushing apparatus as claimed in claim 1, wherein: the protection tooth is a hard alloy cylindrical tooth, and the protection tooth is axially connected to the root of the plate tooth along the roller and radially connected to the back of the plate tooth along the roller.
7. A screen crushing apparatus as claimed in claim 6, wherein: the diameter of the protection teeth is 8-15mm, and the height of the protection teeth is 8-40 mm.
8. A screen crushing apparatus as claimed in claim 2, wherein: 2-4 protection teeth are arranged on the back of the plate tooth, and 2-10 protection teeth are respectively arranged on two sides of the root part; 2-6 protective teeth are arranged on the reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021563150.0U CN212820359U (en) | 2020-07-31 | 2020-07-31 | Screening and crushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021563150.0U CN212820359U (en) | 2020-07-31 | 2020-07-31 | Screening and crushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212820359U true CN212820359U (en) | 2021-03-30 |
Family
ID=75125593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021563150.0U Active CN212820359U (en) | 2020-07-31 | 2020-07-31 | Screening and crushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212820359U (en) |
-
2020
- 2020-07-31 CN CN202021563150.0U patent/CN212820359U/en active Active
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