CN210357351U - Tooth row for roller crusher - Google Patents

Abstract

The utility model discloses a tooth row for a roller crusher, which comprises a wear-resistant layer and a bearing part; a plurality of crushing teeth are arranged on the end surface of the wear-resistant layer far away from the bearing part; the wear-resistant layer is fixed on the end face, far away from the mounting roller, of the bearing part; mounting threaded holes 30 are also formed in the wear-resistant layer and the bearing part; the mounting threaded hole penetrates through the wear-resistant layer and the bearing part. Use the embodiment of the utility model provides a can the quick replacement tooth row that has worn and torn the inefficacy and reduce the frequency of changing the tooth row.

Description

Tooth row for roller crusher

Technical Field

The utility model relates to a tooth row, more specifically relate to a tooth row for roller crusher.

Background

In the crushing of materials, crushing rolls are commonly used, and a typical crushing roll includes: crushing teeth and mounting rollers. The structure of the crushing roller is that a plurality of wear-resistant crushing tooth rows are respectively arranged on the outer circumferential surface of the mounting roller; then the crushing roller is rotated to crush the materials.

However, in the conventional crushing roller, after a certain period of use, the crushing teeth are seriously worn, and thus, the crushing teeth need to be frequently replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a tooth row for roller crusher is provided to the worn and torn tooth row of quick replacement and the frequency of reducing the broken tooth of change.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the embodiment of the utility model provides a tooth row for a roller crusher, which comprises a wear-resistant layer and a bearing part;

a plurality of crushing teeth are arranged on the end surface of the wear-resistant layer far away from the bearing part;

the wear-resistant layer is fixed on the end face, far away from the mounting roller, of the bearing part;

mounting threaded holes are formed in the wear-resistant layer and the bearing part;

the mounting threaded hole penetrates through the wear-resistant layer and the bearing part.

Optionally, the wear-resistant layer is made of wear-resistant high-chromium cast iron, and the bearing part is made of common cast iron.

Optionally, an end face of the bearing part far away from the mounting roller is further provided with an extension part extending towards the wear-resistant layer.

Optionally, the extension is coaxially disposed with the crushing teeth.

Optionally, the extension part is a conical protrusion integrally formed with the bearing part.

Optionally, the extension part is a fixing pin with threads on the surface;

one end of the fixing pin is inserted into a blind hole arranged on the bearing part and connected with the bearing part; the other end of the fixing pin is connected with the wear-resistant layer.

Optionally, the bearing part is provided with a fixing screw hole parallel to the mounting threaded hole;

and the fixing screw penetrates through the fixing screw hole to fix the wear-resistant layer.

Optionally, the crushing teeth are distributed on the end surface of the wear-resistant layer far away from the bearing part;

and the length of the tooth row in the direction along the axis of the mounting roller is equal to the length of the mounting roller.

Optionally, the projection of the crushing teeth on a plane perpendicular to the central axis of the mounting roll is asymmetric.

Optionally, at least two or more rows of crushing teeth are arranged on the tooth rows, and each row comprises a plurality of crushing teeth;

the crushing teeth in the same row are arranged in a linear array along the direction of the central axis of the mounting roller.

Compared with the prior art, the utility model has the following advantages:

use the embodiment of the utility model provides a, through set up the wearing layer on the terminal surface of bearing part, be a material for broken tooth among the prior art and make, improved the wearability of the terminal surface of tooth row with the material contact, improved the life-span, and then reduced the change frequency of tooth row.

Drawings

Fig. 1 is a first schematic structural diagram of a tooth row for a roller crusher according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a tooth row for a roller crusher according to an embodiment of the present invention;

fig. 3 is a third schematic structural diagram of a tooth row for a roller crusher according to an embodiment of the present invention;

fig. 4 is a fourth schematic structural diagram of a tooth row for a roller crusher according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Fig. 1 is a first schematic structural diagram of a tooth row for a roller crusher according to an embodiment of the present invention, as shown in fig. 1, the tooth row includes a wear-resistant layer 10 and a bearing portion 20;

a plurality of crushing teeth 101 are arranged on the end surface of the wear-resistant layer 10 far away from the bearing part 20;

the wear-resistant layer 10 is fixed on the end face of the bearing part 20 far away from the installation roller;

mounting threaded holes 30 are further formed in the wear-resistant layer 10 and the bearing part 20;

the mounting threaded hole 30 penetrates through the wear-resistant layer 10 and the bearing portion 20.

Use the utility model discloses during the embodiment, with the bottom and the installation roller contact of supporting part 20, then insert mounting nut installation screw hole 30, mounting nut passes wearing layer 10 and supporting part 20 in proper order and fixes wearing layer 10 and supporting part 20 on the installation roller.

Use the embodiment of the utility model provides a, through set up wearing layer 10 on the terminal surface of supporting part 20, wearing layer 10 is more wear-resisting for supporting part 20, consequently can improve life, is a material for broken tooth 101 among the prior art and makes, has improved the wearability of the terminal surface of row of teeth and material contact, has improved the life-span, and then has reduced the change frequency of row of teeth.

In addition, the tooth row that uses wear-resisting material to make among the prior art still, bearing portion 20 and wearing layer 10 are wear-resisting material and make promptly, lead to the cost higher, the embodiment of the utility model provides an in, use the comparatively low-priced material of wear-resisting material to make bearing portion 20, can reduce the use cost of tooth row.

In practical applications, the wear-resistant layer 10 is made of wear-resistant high-chromium cast iron, and the bearing portion 20 is made of common cast iron. It is emphasized that the wear-resistant high-chromium cast iron and the common cast iron are the existing materials, and the wear-resistant performance of the wear-resistant high-chromium cast iron is far higher than that of the common cast iron.

Fig. 2 is a second schematic structural view of a tooth row for a roller crusher according to an embodiment of the present invention, as shown in fig. 2, an extension portion 102 extending toward the wear-resistant layer 10 is further disposed on the end surface of the bearing portion 20 away from the mounting roller.

The extension part 102 extends into the wear-resistant layer 10, so that the contact area between the bearing part 20 and the wear-resistant layer 10 is increased, and the structural strength between the wear-resistant layer 10 and the bearing part 20 is improved.

In a specific implementation manner of the embodiment of the present invention, in order to avoid the protrusion of the extension portion 102 from causing the thickness of the wear-resistant layer 10 to become thinner, and further causing a part of the wear-resistant layer 10 to be worn out in advance, the extension portion 102 and the crushing teeth 101 are coaxially disposed.

In a specific implementation manner of the embodiment of the present invention, in order to facilitate the processing of the extension portion 102, the extension portion 102 is a conical protrusion integrally formed with the bearing portion 20.

In practice, the projections of the extensions 102 are arranged coaxially with the crushing teeth 101 provided on the wear layer 10.

Fig. 3 is a third structural schematic diagram of a tooth row for a roller crusher according to an embodiment of the present invention, as shown in fig. 3, the extension 102 is a fixing pin 40 with threads on a surface; one end of the fixing pin 40 is inserted into a blind hole arranged on the bearing part 20 and connected with the bearing part 20; the other end of the fixing pin 40 is connected to the wear-resistant layer 10.

In practical application, the wear-resistant layer 10 and the bearing part 20 are bonded by a thermal composite process, and after the wear-resistant layer 10 is worn, the wear-resistant layer 10 can be removed, so that the bearing part 20 can be reused. If the conical protrusion is used, after a plurality of times of shoveling operations, the conical protrusion gradually becomes smaller, so that the effect of enlarging the cross section of the conical protrusion is reduced, and the bonding strength between the new wear-resistant layer 10 and the bearing part 20 obtained by subsequent thermal compounding is further caused. Therefore, the embodiment of the utility model provides a, use the surface to be equipped with screwed fixed pin 40, after shoveling wearing layer 10, can unscrew remaining fixed pin 40, then with new fixed pin 40 screw in, compound wearing layer 10 of heat again, and then reached the purpose of reuse bearing part 20.

Fig. 4 is a schematic view of a fourth structure of a tooth row for a roller crusher according to an embodiment of the present invention, as shown in fig. 4, the bearing portion 20 is provided with a fixing screw hole parallel to the mounting screw hole 30;

the fixing screw 204 passes through the fixing screw hole to fix the wear-resistant layer 10.

In a specific implementation manner of the embodiment of the present invention, the array of crushing teeth 101 is distributed on the end surface of the wear-resistant layer 10 away from the bearing portion 20;

and the length of the tooth row in the direction along the axis of the mounting roller is equal to the length of the mounting roller.

Further, because wearing layer 10 is shoveled the back, probably shovels the part that fixed pin 40 stretches out supporting part 20 in the same direction as the area, consequently, remains the fixed pin 40 inside supporting part 20 and is difficult for taking out, consequently, for convenient taking out fixed pin 40, and then be convenient for change wearing layer 10 the utility model discloses in the embodiment, use set screw 204 to replace fixed pin 40, set screw 204 passes supporting part 20, and then the one end of set screw 204 stretches out the surface of supporting part orientation wearing layer 10 in order to play the effect of fixed pin 40, after shoveling wearing layer 10, can take out set screw 204 through the screw of screwing out, then, more the new set screw 204 that changes, the new wearing layer 10 of final thermal recombination.

Further, the projection of the crushing teeth 101 on a plane perpendicular to the central axis of the mounting roll is asymmetrical. As shown in fig. 1-4, the crushing teeth 101 of fig. 1-4 have different inclination angles of the left and right side walls, and the midpoint of the top end surface of the crushing tooth 101 is located on the left side right above the midpoint of the root of the crushing tooth.

Use the embodiment of the utility model provides a, regard as the material level of meeting with the great lateral wall of broken tooth inclination usually, when broken tooth 101 receives the striking of material, can improve the rigidity of broken tooth, reduce the probability that broken tooth 101 was broken, prolonged the life of tooth row.

Furthermore, at least more than two rows of crushing teeth are arranged on the tooth rows, and each row comprises a plurality of crushing teeth 101;

the crushing teeth 101 in the same row are arranged in a linear array along the direction of the central axis of the mounting roll.

As shown in fig. 1, four rows of crushing teeth are arranged at the top of the tooth row, each row of crushing teeth linearly extends along the direction of the central axis of the mounting roller, and a certain gap is formed between two adjacent crushing teeth 101 in the same row of crushing teeth.

Use the utility model discloses an embodiment can change a plurality of broken teeth when changing a row of teeth, changes for broken tooth one by one among the prior art, has improved change efficiency, has shortened operating time.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A tooth row for a roller crusher is characterized by comprising a wear-resistant layer and a bearing part;

a plurality of crushing teeth are arranged on the end surface of the wear-resistant layer far away from the bearing part;

the wear-resistant layer is fixed on the end face, far away from the mounting roller, of the bearing part;

mounting threaded holes are formed in the wear-resistant layer and the bearing part;

the mounting threaded hole penetrates through the wear-resistant layer and the bearing part.

2. The roller crusher tooth row according to claim 1, wherein the wear resistant layer is made of high chromium cast iron and the carrier is made of ordinary cast iron.

3. A roller crusher tooth row according to claim 1, characterized in that the end surface of the carrier part remote from the mounting roller is further provided with an extension part extending towards the wear resistant layer.

4. A roller crusher tooth row according to claim 3, characterized in that said extensions are arranged coaxially with said crushing teeth;

the extension part is a conical bulge integrated with the bearing part.

5. The row of teeth for a roller crusher according to claim 3, wherein said extension is a fixed pin with a thread on its surface;

one end of the fixing pin is inserted into a blind hole arranged on the bearing part and connected with the bearing part; the other end of the fixing pin is connected with the wear-resistant layer.

6. The roller crusher tooth row according to claim 5, wherein the bearing part is provided with a fixing screw hole parallel to the mounting screw hole;

and the fixing screw penetrates through the fixing screw hole to fix the wear-resistant layer.

7. A roller crusher tooth row according to claim 1, characterized in that the projections of said crushing teeth on a plane perpendicular to the central axis of the mounting roller are asymmetrically shaped.

8. The row of teeth for a roller crusher according to claim 1, wherein at least two or more rows of crushing teeth are provided on the row of teeth, and each row comprises a plurality of crushing teeth;

the crushing teeth in the same row are arranged in a linear array along the direction of the central axis of the mounting roller.

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