CN114918001A - Wear-resisting element, wear-resisting roller shaft and roller press with wear-resisting roller shaft - Google Patents

Abstract

The invention discloses a wear-resistant element, a wear-resistant roll shaft and a roll squeezer with the wear-resistant roll shaft, and relates to the technical field of roll pressers. According to the wear-resistant element, the wear-resistant roll shaft and the roll squeezer with the wear-resistant roll shaft, which are provided by the invention, through the arrangement of the wear-resistant element and the supporting part, the problems of poor structure and uneven stress of a conventional roll surface and a baffle ring are solved, the service life of the wear-resistant element is effectively prolonged, and the extrusion effect of materials passing through the roll shaft is improved.

Description

A wear-resistant element, a wear-resistant roller and a roller press with wear-resistant rollers

technical field

The invention relates to the technical field of roller presses, in particular to a wear-resistant element, a wear-resistant roller shaft and a roller press with wear-resistant roller shafts.

Background technique

In the production process of traditional building materials cement, metallurgical mining, chemical industry and other industries, the power consumption of grinding accounts for 60-70% of the total power consumption. It hinders the improvement of enterprise economic benefits and the large-scale production scale.

Due to the change of the grinding mechanism, the roller press (or high pressure roller mill) and its system technology can reduce the power consumption of the grinding system by 20-60% and increase the output by 25-200%, which is suitable for new or old factories. Expansion and transformation. With the development of grinding technology in recent years, roller presses (high pressure roller mills) based on the principle of material bed grinding have been widely used in the grinding of cement clinker, cement raw meal, slag, steel slag, iron ore, chemical industry, etc. In the field, it has achieved obvious energy-saving effect, and it is an ideal roller support for energy saving and consumption reduction, which saves energy, reduces power consumption, and achieves sustainable development. However, with the popularization of the application of roller presses (or high pressure roller mills), the extrusion rollers of traditional roller presses (or high pressure roller mills) face the following problems, as shown in Figure 1-3:

1. Conventional roller surface + side baffle (blocked on the end surface of the roller sleeve). Since the side baffle is movably blocked on the end face of the roller sleeve, the ejector rod and disc spring or spring resist the effect of the extrusion force of the material on the side baffle, so when the side baffle is subjected to the extrusion force of the material, it will be affected according to the force. Size away from and close to the end face of the roll sleeve. In the process that the side baffle is away from the end face of the roller sleeve, the edge will leak material, resulting in poor extrusion effect of the edge material, affecting the overall extrusion effect of the roller press (or high pressure roller mill). There is also a serious problem that the side baffle is blocked on the side. The side baffle does not rotate. When the material passes through the roller press (or high pressure roller mill), it is equivalent to the side baffle being fixed, and the material is passing through the roller. During the process of the press, the materials on both sides always rub against the side baffle, so that there is a concentrated wear area on the side baffle, and the side baffle has a relatively short life and needs to be replaced frequently.

2. Conventional roller surface + retaining ring (the retaining ring is fixed on the side of the roller sleeve by bolts). During the extrusion process of the material, since the baffle ring blocks the material from moving towards the edge, the material will gather at the junction of the baffle ring and the roller sleeve. The force in the width direction of the entire roll is small in the middle and large at both ends, and the force is very uneven. After the retaining ring is stressed, it will be away from the end face of the roller sleeve. During the process of moving away, a gap will be formed between the retaining ring and the end surface of the roller sleeve, and fine materials will enter the gap. The bolts are broken or the retaining ring is broken or the side of the roller sleeve is damaged.

Conventional roller surface + retaining ring (the retaining ring is clamped on the roller sleeve and fastened to the side of the roller sleeve by bolts). During the extrusion process of the material, since the baffle ring blocks the material from moving towards the edge, the material will gather at the junction of the baffle ring and the roller sleeve. The force in the width direction of the entire roll is small in the middle and large at both ends, and the force is very uneven. The retaining ring will tend to move away from the end face of the roller sleeve after being stressed. During this process, the force between the retaining ring and the groove of the roller sleeve is very large, and it is easy to break the groove close to the end face of the roller sleeve. The bolts on the driving side are broken or the retaining ring is broken, and the edge of the roller sleeve is also damaged.

SUMMARY OF THE INVENTION

The purpose of the present invention is: in view of the above-mentioned problems, the present invention provides a wear-resistant element, a wear-resistant roller shaft and a roller press with wear-resistant roller shaft, which solves the above-mentioned structural differences and The problem of uneven force effectively prolongs the service life of the wear-resistant element and improves the extrusion effect of the material when it passes through the roller shaft.

The technical scheme adopted in the present invention is as follows:

A wear-resistant element, comprising a working part that is in direct contact with materials, and an assembly part that connects the working part to a roller shaft support part, the working part abuts on the end face of the support part, and the assembly part is arranged at the end of the working part. One end is at least matched with the circumferential curved surface of the support part, the assembling part is provided with a plurality of assembling holes matched with the connecting piece, and the axis of the assembling holes is parallel to the working part.

Further, the working part includes a wear surface directly in contact with the material and a support surface abutting against the roller shaft support part, the wear surface and the support surface are arranged on both sides of the working part opposite to the support surface, and the assembly part is connected to the support. noodle.

Further, an end of the working portion opposite to the connecting and assembling portion is provided with a fixing portion that can be restricted to the fixing groove, and the fixing portion extends outward from the wear surface.

Further, a wear-resistant layer is provided on the wear surface.

Further, a plurality of the assembling holes are evenly distributed along the length direction of the assembling portion, and corrugated strips are arranged between two adjacent assembling holes.

A wear-resistant roller, comprising a roller body, the roller body comprising a support part for installing wear-resistant elements, and a rolling part acting on the material, the support part is provided at the end of the rolling part; The wear-resistant element includes a working part that is in direct contact with the material, and an assembly part that connects the working part to the support part. The assembly part is arranged at one end of the working part and matches at least the circumferential curved surface of the support part. The mounting hole is provided with a number of fitting holes matched with the connecting piece, and the axis of the fitting hole is parallel to the working part; the fitting part is detachably connected to the supporting part through the connecting piece, and the working part abuts against the supporting part and the rolling part one side of the connection.

Further, the ends of the adjacent wear-resistant elements can abut each other, and a plurality of the wear-resistant elements can cooperate with each other to form a wear-resistant ring matched with the support part, and the ends of the adjacent wear-resistant elements in the wear-resistant ring parts abut each other.

Further, the rolling portion is a cylindrical structure, the supporting portion protrudes radially from the rolling portion, and the paired supporting portions and the rolling portion cooperate with each other to form a concave rolling area; the supporting portion and the rolling portion cooperate with each other to form a concave rolling area; A ring-shaped fixing groove is provided at the junction of the rolling part, and a fixing part which can be restricted to the fixing groove is provided at the opposite end of the working part and the connecting and assembling part.

Further, the working part includes a wear surface directly in contact with the material, and a support surface abutting on the end surface of the support part, the wear surface and the support surface are arranged on both sides of the working part opposite to the support surface, and the assembly part is connected to the support surface. , the fixing portion extends outward from the wear surface.

A wear-resistant roller press, comprising a first roller and a second roller, the second roller including a support for installing wear-resistant elements, and a second roller for rolling materials The supporting part is arranged at the end of the second rolling part; the second rolling part is matched with the first rolling part of the first roller; the wear-resistant element includes a working part that is in direct contact with the material , and an assembly part that connects the working part to the support part, the assembly part is arranged at one end of the working part and matches at least the circumferential curved surface of the support part, and the assembly part is provided with a number of assembly holes matching the connecting parts, The axis of the assembling hole is parallel to the working part; the assembling part is detachably connected to the supporting part through the connecting piece, and the working part abuts on the side of the supporting part which is matched with the first roller shaft.

In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: the wear-resistant element matches the support part, the wear-resistant element rotates with the roller shaft, and is consistent with the running direction of the material, which can reduce the wear resistance of the material. The impact of the components; the width of the assembly part and the support part can be adjusted according to the needs, and the wider assembly part has a better bearing effect, which solves the problem that the conventional roller surface + retaining ring structure is easily broken and damaged; compared with the conventional fixed side baffle , the wear surface area is large, and each wear-resistant element re-enters the wear area after one rotation, and the total wear amount per unit time is evenly distributed by the entire wear-resistant ring, which can effectively improve the service life of the wear-resistant element.

Description of drawings

Fig. 1 is the structure schematic diagram of the traditional conventional roller surface + side baffle of a roller press (or called a high pressure roller mill);

Figure 2 is a schematic structural diagram of a conventional roller surface of a roller press (or a high-pressure roller mill) + a retaining ring (the retaining ring is fixed on the side of the roller sleeve by bolts);

Figure 3 is a schematic structural diagram of a conventional roller surface of a roller press (or a high-pressure roller mill) + a retaining ring (the retaining ring is stuck on the roller sleeve and fastened to the side of the roller sleeve by bolts);

Fig. 4 is the front view of the wear-resistant element of the present invention;

Figure 5 is a side view of the wear-resistant element of the present invention;

6 is a schematic structural diagram of the wear-resistant element of the present invention being installed on the roller shaft;

Figure 7 is a side view of the wear-resistant element of the present invention installed on the roller;

FIG. 8 is a schematic structural diagram of the cooperation of the first roller shaft and the second roller shaft of the present invention.

Markings in the figure: 1-first roller, 2-second roller, 3-supporting part, 4-wear-resistant element, 401-working part, 402-fitting part, 403-fixing part, 404-fitting hole, 9 -Connector, 16- Wear layer, 20- Fixing groove.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Example 1

A wear-resistant element, as shown in Figures 4-5, includes a working part 401 that is in direct contact with the material, and a fitting part 402 that connects the working part 401 to the roller shaft support part 3, the working part 401 abuts against the support The assembling part 402 is arranged on one end of the working part 401 and matches at least the circumferential curved surface of the supporting part 3; The axis of the fitting hole 404 is parallel to the working portion 401 .

The working part 401 includes a wear surface directly in contact with the material, and a support surface abutting against the roller shaft support part 3 , the wear surface and the support surface are disposed on both sides of the working part 401 opposite to the support surface, and the assembly part 402 is connected to the roller shaft support part 3 . support surface.

An end of the working portion 401 opposite to the connecting and assembling portion 402 is provided with a fixing portion 403 that can be restricted to the fixing groove 20 , and the fixing portion 403 extends outward from the wear surface. Specifically, the fixing portion 403 facilitates the installation and fixing of the wear ring. An L-shaped structure is formed between the fixing part 403 and the working part 401 , which can prevent materials from accumulating at the connection between the fixing part 403 and the fixing groove 20 .

A wear-resistant layer 16 is provided on the wear surface. Preferably, the wear-resistant layer 16 is a surfacing composite wear-resistant layer.

The plurality of assembling holes 404 are evenly distributed along the length direction of the assembling portion 402 , and corrugated strips are provided between two adjacent assembling holes 404 .

Specifically, the wear-resistant element 4 is matched with the support part 3, the wear-resistant element 4 rotates with the roller shaft, and is consistent with the running direction of the material, which can reduce the impact of the material on the wear-resistant element 4; the assembly part 402 and the support part 3 The width of the roller can be adjusted according to needs, and the wider assembly part 402 has a good bearing effect, which solves the problem that the conventional roller surface + retaining ring structure is easily broken and damaged.

Example 2

A wear-resistant roller, as shown in Figures 6-7, includes a roller body, the roller body includes a support portion 3 for installing a wear-resistant element 4, and a rolling portion acting on the material, the support The part 3 is set at the end of the rolling part; the wear-resistant element 4 includes a working part 401 that is in direct contact with the material, and an assembly part 402 that connects the working part 401 to the support part 3, and the assembly part 402 is set at the working part 401. One end of the mounting portion 401 and at least match the circumferential surface of the support portion 3, the mounting portion 402 is provided with a number of mounting holes 404 that match the connecting piece 9, and the axis of the mounting holes 404 is parallel to the working portion 401; the The assembling part 402 is detachably connected to the supporting part 3 through the connecting member 9 , and the working part 401 abuts against an end face of the supporting part 3 connected with the rolling part.

The ends of the adjacent wear-resistant elements 4 can abut each other, and a plurality of the wear-resistant elements 4 can cooperate with each other to form a wear-resistant ring matching the support part 3 , and the adjacent wear-resistant elements 4 in the wear-resistant ring The ends abut each other.

The rolling portion is a cylindrical structure, the supporting portion 3 protrudes from the rolling portion in the radial direction, and the paired supporting portions 3 and the rolling portion cooperate with each other to form a concave rolling area; the supporting portion 3 and the rolling portion cooperate with each other. A ring-shaped fixing groove 20 is provided at the junction of the rolling portion, and a fixing portion 403 that can be restricted to the fixing groove 20 is provided at the end of the working portion 401 opposite to the connecting and fitting portion 402 .

The working part 401 includes a wear surface directly in contact with the material, and a support surface abutting on the end surface of the support part 3 , the wear surface and the support surface are disposed on both sides of the working part 401 opposite to the support surface, and the assembly part 402 is connected to the support face, the fixing portion 403 extends outward from the wear face.

Specifically, compared with the conventional fixed side baffles, the wear surface area is large, and each wear-resistant element 4 rotates once before entering the wear area again, and the total wear amount per unit time is evenly distributed by the entire wear-resistant ring , which can effectively improve the service life of the wear-resistant element 4 . Preferably, the roller shaft body is integrally forged with the roller sleeve and the flange plate with both ends serving as the support portion 3, rather than being fastened by bolts, and the thickness of the flange plate can be selected according to needs.

Example 3

A roller press with wear-resistant rollers, as shown in FIG. 8 , includes a first roller 1 and a second roller 2, and the second roller 2 includes a support portion 3 for installing a wear-resistant element 4, and a second rolling part for rolling the material, the support part 3 is arranged at the end of the second rolling part; the second rolling part matches the first rolling part of the first roller shaft 1; The wear-resistant element 4 includes a working part 401 that is in direct contact with the material, and an assembly part 402 that connects the working part 401 to the support part 3 . The assembling part 402 is provided with a number of assembling holes 404 matching the connecting piece 9, the axis of the assembling hole 404 is parallel to the working part 401; the assembling part 402 is detachably connected to the connecting piece 9 Supporting part 3, the working part 401 abuts on the side of the supporting part 3 which is matched with the first roller shaft 1.

Specifically, the first roller 1 and the second roller 2 form a concave-convex shape, the second roller 2 does not move in the horizontal direction, the first roller 1 moves horizontally along the frame rail plate, and the first roller 1 moves During the process, it always moves between the two support parts 3. During the process of the material passing through the first roller shaft 1 and the second roller shaft 2, the materials on both sides are squeezed by the first rolling part and the second rolling part. In addition to being driven and driven, it is also driven by the downward movement of the support part 3 during the circular motion, so that the materials on both sides are subjected to greater force and the probability of forming a cake is greater.

The principles and implementations of the present invention are described herein by using specific embodiments, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in use, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Claims (10)

1. The utility model provides a wear-resisting component, its characterized in that includes the work portion with material direct contact and makes the work portion connect in the assembly portion of roller supporting part, work portion butt in the terminal surface of supporting part, the one end of work portion is located to the assembly portion to at least match with the circumference curved surface of supporting part, be equipped with a plurality of pilot holes that match with the connecting piece on the assembly portion.

2. A wear member in accordance with claim 1, characterized in that the working portion comprises a wear surface directly in contact with the material and a support surface abutting the roller support portion, the wear surface being arranged on both sides of the working portion opposite the support surface, the fitting portion being connected to the support surface.

3. A wear member in accordance with claim 2 in which the end of the working portion opposite the attachment formation is provided with a fixing portion which is captive to the retaining groove, the fixing portion extending outwardly from the wear surface.

4. A wear member in accordance with claim 2 or 3, wherein the wear surface is provided with a wear layer.

5. A wear member in accordance with claim 1, 2 or 3, in which a plurality of said fitting holes are uniformly distributed along the length of the fitting portion, and a fillet is provided between two adjacent fitting holes.

6. A wear-resistant roll shaft comprises a roll shaft body, and is characterized in that the roll shaft body comprises a supporting part for mounting a wear-resistant element and a roll pressing part acting on a material, wherein the supporting part is arranged at the end part of the roll pressing part; the wear-resistant element comprises a working part directly contacted with the material and an assembling part connecting the working part to the supporting part, the assembling part is arranged at one end of the working part and at least matched with the circumferential curved surface of the supporting part, and a plurality of assembling holes matched with the connecting piece are formed in the assembling part; the assembling part is detachably connected to the supporting part through a connecting piece, and the working part is abutted to one side end face of the supporting part connected with the rolling part.

7. The wear-resistant roller axle of claim 6 wherein a plurality of said wear-resistant elements cooperate to form a wear-resistant ring that mates with the support, adjacent ends of said wear-resistant elements in said wear-resistant ring abutting each other.

8. The wear-resistant roller shaft according to claim 6 or 7, wherein the roller pressing portion has a cylindrical structure, the supporting portions protrude from the roller pressing portion in a radial direction, and the paired supporting portions and the roller pressing portions cooperate with each other to form a concave roller pressing region; the supporting part is provided with a roll pressing part, the roll pressing part is provided with a supporting part, the supporting part is connected with the roll pressing part, the roll pressing part is provided with a rolling part, the rolling part is provided with a rolling part, and the rolling part is provided with a rolling part which is used for rolling the roll pressing part.

9. The wear-resistant roller shaft according to claim 8, wherein the working portion includes a wear surface directly contacting the material and a support surface abutting an end surface of the support portion, the wear surface being disposed opposite the support surface on both sides of the working portion, the fitting portion being connected to the support surface, and the fixing portion extending outward from the wear surface.

10. A roller press with a wear-resistant roller shaft comprises a first roller shaft and a second roller shaft, and is characterized in that the second roller shaft comprises a supporting part for mounting a wear-resistant element and a second rolling part for rolling a material, and the supporting part is arranged at the end part of the second rolling part; the second rolling part is matched with the first rolling part of the first roll shaft; the wear-resistant element comprises a working part directly contacted with the material and an assembling part connecting the working part to the supporting part, the assembling part is arranged at one end of the working part and at least matched with the circumferential curved surface of the supporting part, and a plurality of assembling holes matched with the connecting piece are formed in the assembling part; the assembling part is detachably connected to the supporting part through a connecting piece, and the working part is abutted to one side, matched with the first roll shaft, of the supporting part.

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