阅读说明：本技术 一种辊压机柱钉式辊边防护结构 (Stud type roller edge protection structure of roller press ) 是由 何亚民 丁亚卓 徐智平 于 2020-04-01 设计创作，主要内容包括：本发明公开了一种辊压机柱钉式辊边防护结构,涉及辊压机辊面保护技术领域。本发明包括辊套和护环,辊套的端面边缘设置有支承护环的台阶,护环可拆卸的连接辊套端面,且护环环绕辊套端面,护环的环面镶嵌有耐磨柱钉,耐磨柱钉至少包括错位布置的一号柱钉和二号柱钉,一号柱钉的直径和/或露头高度与二号柱钉不同。本发明通过在可拆卸的护环上设置错位布置的多种柱钉,使辊压机辊子边缘获得耐磨防护,达到延长辊子使用寿命,制造工艺简单且成本低廉。(The invention discloses a stud type roller edge protection structure of a roller press, and relates to the technical field of roller surface protection of the roller press. The roller sleeve comprises a roller sleeve and a protective ring, wherein the edge of the end face of the roller sleeve is provided with a step for supporting the protective ring, the protective ring is detachably connected with the end face of the roller sleeve and surrounds the end face of the roller sleeve, wear-resistant studs are embedded in the ring surface of the protective ring, the wear-resistant studs at least comprise a first stud and a second stud which are arranged in a staggered mode, and the diameter and/or the exposed height of the first stud are different from those of the second stud. The invention arranges a plurality of studs in staggered arrangement on the detachable guard ring, so that the edge of the roller press obtains wear-resistant protection, the service life of the roller is prolonged, the manufacturing process is simple and the cost is low.)

1. The utility model provides a roll squeezer stud (3) formula roller limit protective structure, includes roller shell (1) and retaining ring (2), and terminal surface (1b) edge of roller shell (1) is provided with step (1c) that support retaining ring (2), retaining ring (2) detachable connects roller shell (1) terminal surface (1b), just retaining ring (2) encircle roller shell (1) terminal surface (1b), its characterized in that, anchor ring (2a) of retaining ring (2) are inlayed and are had wear-resisting stud (3), and wear-resisting stud (3) are at least including a stud (3a) and No. two studs (3b) of dislocation arrangement, the diameter and/or the exposure height of a stud (3a) are different with No. two studs (3 b).

2. The roller press stud (3) type roller edge protection structure as claimed in claim 1, characterized in that the first studs (3a) are uniformly distributed on the ring surface (2a), and at least part of the second studs (3b) are arranged between two circumferentially adjacent first studs (3 a).

3. The roller press stud (3) type roller edge protection structure according to claim 2, wherein the diameter of the first stud (3a) is larger than that of the second stud (3b), the second stud (3b) is arranged at the edge of the near roller surface (1a) and the edge of the far roller surface (1a) of the ring surface (2a), and the second stud (3b) and the first stud (3a) are arranged at intervals in the circumferential direction.

4. The roller press stud (3) type roller edge protection structure according to claim 2, wherein the diameter of the first stud (3a) is larger than that of the second stud (3b), the second stud (3b) is arranged at the edge of the near roller surface (1a) and the edge of the far roller surface (1a) of the ring surface (2a), the second studs (3b) are arranged at intervals in the circumferential direction, and the arrangement density of the second studs (3b) at the edge of the near roller surface (1a) is larger than that of the edge of the far roller surface (1 a).

5. A roller edge protection structure of a roller press stud (3) according to any one of claims 1 to 4, characterized in that the wear stud (3) is radially embedded in the guard ring (2), the top of the wear stud (3) protrudes from the ring surface (2a) or the top of the wear stud (3) is flush with the ring surface (2 a).

6. Roller press stud (3) type edge protector according to any of claims 1 to 4, characterized in that in longitudinal section the ring surface (2a) is flush with the roller surface (1 a); or, in longitudinal section, the toroidal surface (2a) is higher than the roll surface (1 a); or in the longitudinal section, the outer diameter of the side of the guard ring (2) close to the roll surface (1a) is smaller than the outer diameter of the side of the guard ring (2) far away from the roll surface (1a), and the side of the ring surface (2a) close to the roll surface (1a) is connected with the roll surface (1 a).

7. Roller press stud (3) type roller edge guard structure according to any one of claims 1 to 4, characterized in that the guard ring (2) is formed in one piece; or the guard ring (2) comprises a plurality of guard blocks (2') which can be spliced into a ring.

8. Roller press stud (3) type roller edge guard structure according to claim 7, characterized in that, in longitudinal section, the step (1c) comprises a wedge (1d) limiting the axial movement of the edge guard block (2 ') along the roller shell (1), the edge guard block (2') having a head (2d) matching the wedge (1 d).

9. The roller press stud (3) type roller edge protection structure as claimed in any one of claims 1 to 4, characterized in that the diameter of the wear-resistant stud (3) is from 10mm to 20 mm; the outcrop height of the wear-resistant stud (3) is 0-10 mm.

10. A roller edge protection structure of the roller press stud (3) type according to any one of claims 1 to 4, characterized in that the wear-resistant stud (3) is made of cemented carbide, high-speed steel or high-chromium cast iron.

Technical Field

The invention relates to the technical field of roll surface protection of a roll squeezer, in particular to a stud type roll edge protection structure of the roll squeezer.

Background

In the industries of building material cement, metallurgical mines, coal, chemical industry and the like, the roller press has the advantages of high single machine yield, high operation rate, good reliability, low unit energy consumption and the like, and is quickly universally accepted by the industries. As the application field of the roller press is more and more extensive, the materials are more and more complex, and when the materials with stronger abrasiveness, larger particle size and non-uniformity are encountered, higher requirements on the wear resistance and the impact resistance of the roller surface are provided. In the edge area of the roll surface, problems such as too fast abrasion, edge breakage and the like often occur, and if the problems are not timely treated, the yield of the roll press and the service life of the roll surface are seriously affected.

At present, roller surface wear-resistant armor and wear-resistant material surfacing are mainly adopted as means for protecting the edge of the roller surface.

Chinese patent application publication No. CN104284729A discloses a press roll, which has a roller body, on one or both roller edges of which hard bodies are fastened as replaceable edge protection elements, the edge protection elements being made entirely or partially of a metal matrix composite material, the roller body having a plurality of circumferentially distributed and circumferentially spaced-apart pocket-like recesses on one or both roller edges, which recesses are each formed open laterally and upwardly, wherein only one hard body is inserted as a replaceable edge protection element in each pocket-like recess. The compression roller adopts the roller surface wear-resistant armor, and the roller surface wear-resistant armor is complex in production and preparation process and high in cost.

The Chinese patent application with the publication number of CN202803307U discloses a self-synchronizing abrasion roller of a roller press and a high-pressure roller mill, which takes the center of a roller surface as the center, studs are uniformly distributed in the range of the total width 1/3-3/4 of the roller surface of a roller body, and patterns are uniformly overlaid on the roller surface of the rest of the roller surface. The self-synchronous abrasion roller of the roller press and the high-pressure roller mill adopts a wear-resistant material surfacing mode to protect the edge of the roller surface, the roller surface edge protection structure has the advantages of long service life, need of periodic surfacing repair, limited repair times, block falling phenomenon and difficulty in meeting the field use requirements.

Disclosure of Invention

The invention aims to: can't compromise economy to current roll squeezer roller edge protection architecture and be suitable for and extension roller edge life, keep high wear resistance, the problem of shock resistance, a roll squeezer stud formula roller limit protective structure is provided, the terminal surface edge at the roller shell sets up the detachable retaining ring, and inlay the wear-resisting stud of diameter and/or outcrop height difference on the anchor ring of retaining ring, make roll squeezer roller edge obtain wear-resisting protection, can effectively prolong roller life, the protection architecture that can dismantle the retaining ring and combine the stud is convenient for overhaul the change, manufacturing process is simple and low cost.

The technical scheme adopted by the invention is as follows:

the utility model provides a roll squeezer stud formula roller limit protective structure, includes roller shell and retaining ring, and the terminal surface edge of roller shell is provided with the step of supporting retaining ring, retaining ring detachable connects the roller shell terminal surface, just the retaining ring encircles the roller shell terminal surface, the anchor ring of retaining ring is inlayed and is had wear-resisting stud, and wear-resisting stud includes a stud and No. two studs of dislocation arrangement at least, the diameter and/or the outcrop height of a stud are different with No. two studs.

Furthermore, the first studs are uniformly distributed on the ring surface, and at least part of the second studs are arranged between two circumferentially adjacent first studs.

Furthermore, the diameter of the first stud is larger than that of the second stud, the second stud is arranged on the edge of the near roller surface and the edge of the far roller surface of the ring surface, and the second stud and the first stud are arranged at intervals in the circumferential direction.

Furthermore, the diameter of a stud is greater than that of a second stud, the second stud is arranged on the edge of the near roller surface and the edge of the far roller surface of the ring surface, the second stud is arranged at intervals in the circumferential direction, and the arrangement density of the second stud on the edge of the near roller surface is greater than that of the edge of the far roller surface.

Furthermore, the wear-resistant stud is embedded into the guard ring along the radial direction, and the top of the wear-resistant stud protrudes out of the ring surface or is flush with the ring surface.

Furthermore, on the longitudinal section, the ring surface is flush with the roller surface; or, in longitudinal section, the ring surface is higher than the roll surface; or, in the longitudinal section, the outer diameter of the side of the guard ring close to the roller surface is smaller than the outer diameter of the side of the guard ring far away from the roller surface, and the side of the ring surface close to the roller surface is connected with the roller surface.

Further, the guard ring is integrally formed; or the guard ring comprises a plurality of guard edge blocks which can be spliced into a ring.

Further, in a longitudinal section, the step includes a wedge that limits the movement of the edge-protecting block in the axial direction of the sleeve, the edge-protecting block having a head that matches the wedge.

Further, the diameter of the wear-resistant stud isThe outcrop height of the wear-resistant stud is 0-10 mm.

Furthermore, the wear-resistant stud is made of hard alloy, high-speed steel or high-chromium cast iron.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the guard ring of the stud type roller edge protection structure of the roller press is detachably separated from the roller sleeve, studs with different diameters and/or exposed head heights are arranged on the guard ring in a staggered mode to play a role in resisting wear, the staggered arrangement mode of the studs is favorable for improving the wear resistance of the ring surface of the guard ring, slowing down the wear speed of the studs, improving the impact resistance of the roller surface and prolonging the service life of the roller; in addition, the retaining ring can be detached, and the stud can be quickly overhauled and replaced, so that online quick repair can be realized.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIGS. 1 and 2 are schematic structural views of a first embodiment of a stud type roll edge protection structure of a rolling machine according to the invention;

FIGS. 3 and 4 are schematic structural views of a second embodiment of the stud-type roll edge protection structure of the rolling machine;

FIG. 5 is a schematic structural view of a third embodiment of the stud-type roll edge protection structure of the rolling machine according to the invention;

FIGS. 6 and 7 are schematic structural views of a second embodiment of the stud-type roll edge protection structure of the rolling machine;

FIG. 8 is a side view of a stud-type roll edge guard structure of a roll squeezer employing a segmented retaining ring in accordance with the present invention;

FIG. 9 is a side view of a stud-type roll edge guard structure of a roll press employing an integral guard ring in accordance with the present invention;

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

According to the roller press stud 3 type roller edge protection structure disclosed by the invention, in order to protect the roller edge from abrasion, the roller sleeve 1 is provided with steps 1c at the edges of two side end surfaces 1b, and a replaceable guard ring 2 is embedded in the steps 1 c. The edge of the end face 1b of the roller sleeve 1 is inwards recessed from the radial direction of the sleeve and the axial direction of the sleeve to form a step 1c, the step 1c can be formed by cutting, and the step 1c provides support for the guard ring 2 from the radial direction and the axial direction. The guard ring 2 is detachably connected with the end surface 1b of the roller sleeve 1 by a connecting mode including but not limited to metal adhesive bonding and bolt connection. The ring surface 2a of the shroud ring 2 forms an extension of the roll surface 1a of the roll shell 1 and provides wear protection for the roll edges. Inlay wear-resisting stud 3 on the anchor ring 2a of retaining ring 2, during wear-resisting stud 3 accessible was inlayed into the hole site of setting on anchor ring 2a by modes such as sticky, wear-resisting stud 3 excessive wearing and tearing back rethread removal were changed and are maintained.

The wear-resistant studs 3 are uniformly distributed in a conventional arrangement mode. In order to prolong the service life of the retaining ring 2 and the studs 3, the studs 3 of different types are arranged in a staggered mode in a better embodiment. Specifically, the guard ring 2 is at least embedded with a first stud 3a and a second stud 3b which are arranged in a staggered mode, and the diameter and/or the outcrop height of the first stud 3 a.

Fig. 1 and 2 show a first embodiment of arrangement of studs 3, a retaining ring 2 is embedded in a step 1c at the edge of an end face 1b of a roller sleeve 1, wear-resistant studs 3 are uniformly arranged on a ring surface 2a of the retaining ring 2, and the diameters and exposed heights of all the wear-resistant studs 3 are consistent.

Fig. 3 and 4 show a second embodiment of arrangement of studs 3, a retaining ring 2 is embedded in a step 1c at the edge of an end surface 1b of a roller sleeve 1, a wear-resistant stud 3 is embedded on the retaining ring 2, the wear-resistant stud 3 comprises a first stud 3a and a second stud 3b, wherein the first stud 3a with a larger diameter is uniformly arranged on a ring surface 2a, and the second stud 3b with a smaller diameter is mainly arranged at the edge of a roller surface 1a close to the ring surface 2a and the edge of a roller surface 1a far away from the ring surface 2a, i.e. the second stud 3b is mainly arranged at two sides of a first stud 3a belt, and the first studs 3a and the second studs 3b are alternately arranged at intervals in the circumferential direction of the retaining ring 2. The exposed height of the first stud 3a is the same as that of the second stud 3 b.

Fig. 5 shows a third embodiment of arrangement of studs 3, a retaining ring 2 is embedded in a step 1c at the edge of an end surface 1b of a roller sleeve 1, a wear-resistant stud 3 is embedded in the retaining ring 2, the wear-resistant stud 3 comprises a first stud 3a and a second stud 3b, wherein the first stud 3a with a larger diameter is uniformly arranged on a ring surface 2a, the second stud 3b with a smaller diameter is mainly arranged at the edge of a near roller surface 1a of the ring surface 2a and the edge of a far roller surface 1a, the second stud 3b is circumferentially arranged at intervals, and the arrangement density of the second stud 3b at the edge of the far roller surface 1a is greater than that of the second stud 3b at the edge of the near roller surface 1 a. The exposed height of the first stud 3a is the same as that of the second stud 3 b.

Fig. 6 and 7 show the fourth embodiment that stud 3 arranged, embedded grommet 2 in the step 1c at 1b edge of the terminal surface of roller shell 1, inlay wear-resisting stud 3 on grommet 2, wear-resisting stud 3 includes a stud 3a and No. two studs 3b, wherein, the great stud 3a of diameter evenly arranges on anchor face 2a, sets up the less No. two studs 3b of diameter between the adjacent stud 3a, in 2 circumferencial directions of grommet, the interval sets up in turn No. one stud 3a and No. two studs 3b, and the outcrop height of a stud 3a is greater than No. two studs 3 b.

In the fifth embodiment that stud 3 was arranged, embedded grommet 2 in the step 1c at 1b edge of the 1 terminal surface of roller shell, inlay wear-resisting stud 3 on grommet 2, wear-resisting stud 3 includes a stud 3a and No. two studs 3b, wherein, a stud 3a evenly arranges on anchor face 2a, sets up No. two studs 3b between the adjacent stud 3a, in 2 circumferencial directions of grommet, a stud 3a sets up with No. two studs 3b interval in turn, the outcrop height of a stud 3a is greater than the outcrop height of No. two studs 3b, and the diameter of a stud 3a is the same with the diameter of No. two studs 3 b.

Optionally, a radial blind hole is formed in the guard ring 2, so that the wear-resistant stud 3 is radially embedded into the guard ring 2. The radially arranged wear-resistant studs 3 have a greater impact resistance. In the way of fitting the wear-resistant stud 3 to the annular surface 2a of the guard ring 2, as in the embodiment shown in fig. 1 and 5, the top of the wear-resistant stud 3 protrudes from the annular surface 2 a; in another embodiment, the wear stud 3 may be flush on top with the annulus 2a as shown. Wherein, the scheme that the wear-resistant stud 3 protrudes out of the ring surface 2a enables the ring surface 2a to be easier to form a self-abrasive pad.

Alternatively, in the way of matching the ring surface 2a of the guard ring 2 with the roll surface 1a, as in the embodiment shown in fig. 1 and 5, in the longitudinal section of the roll, the ring surface 2a is flush with the roll surface 1a, and the edge of the ring surface 2a close to the roll surface 1a is connected with the roll surface 1 a; in another embodiment, the ring surface 2a is higher than the roller surface 1a on the longitudinal section of the roller, and the edge of the ring surface 2a close to the roller surface 1a can be provided with a chamfer to form a transition connected with the roller surface 1 a; in the third embodiment, in the longitudinal section of the roll, the outer diameter of the guard ring 2 on the side close to the roll surface 1a is smaller than the outer diameter of the guard ring 2 on the side far from the roll surface 1a, and more specifically, the ring surface 2a of the guard ring 2 is inclined, and the side close to the roll surface 1a of the ring surface 2a is in contact with the roll surface 1 a. It should be noted that the connection between the ring surface 2a and the roll surface 1a as described herein does not mean a seamless connection therebetween, but means that the two are substantially connected as a whole, allowing for a gap due to the provision of a chamfer or the like.

Alternatively, in the structure of the grommet 2, fig. 8 shows a first embodiment of the grommet 2, wherein the grommet 2 comprises a plurality of detachable grommet blocks 2 ', and the grommet blocks 2' are sequentially spliced into the grommet 2 in a ring shape. Fig. 9 shows a second embodiment of the grommet 2, in which the grommet 2 is integrally formed as a ring-shaped unitary structure.

Optionally, on the basis of the split type retaining ring 2, fig. 4 shows a preferred embodiment of assembling the edge protection block 2 'with the step 1c of the roller sleeve 1, wherein the edge protection block 2' comprises a head portion 2d and a base portion 2e, the head portion 2d of the edge protection block 2 'forms an extension of the roller surface 1a, the base portion 2e of the edge protection block 2' is connected with the end surface 1b of the roller sleeve 1, the step 1c is provided with a wedge portion 1d at a position matching the head portion 2d of the edge protection block 2 ', the head portion 2d of the edge protection block 2' is embedded into the wedge portion 1d to prevent the edge protection block 2 'from moving axially along the roller sleeve 1, and the edge protection block 2' has stronger impact resistance and pressure bearing capacity.

Optionally, the diameter of the wear-resistant stud 3 is preferably 10mm to 20 mm. The outcrop height of the wear-resistant stud 3 is preferably 0-10 mm.

Optionally, in order to improve the strength and wear resistance of the stud 3, the wear-resistant stud 3 is made of cemented carbide, high-speed steel or high-chromium cast iron. To ensure the structural strength of the guard ring 2, the guard ring 2 is preferably made of structural alloy steel, such as structural alloy steel 42CrMo, structural alloy steel 35CrMo, structural alloy steel 34Cr2Ni2Mo, and the like.

The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.