CN218516912U - Roller sleeve of roller grinding part of wear-resistant coal mill - Google Patents
Roller sleeve of roller grinding part of wear-resistant coal mill Download PDFInfo
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- CN218516912U CN218516912U CN202222807225.0U CN202222807225U CN218516912U CN 218516912 U CN218516912 U CN 218516912U CN 202222807225 U CN202222807225 U CN 202222807225U CN 218516912 U CN218516912 U CN 218516912U
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- roller shell
- bearing frame
- annular wedge
- wear
- roller
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Abstract
The utility model discloses a wear-resisting type coal pulverizer grinding roller roll barrel relates to MPF2200 medium speed pulverizer series grinding roller assembly technical field, has solved current roller shell and bearing frame and has adopted clearance fit to cause the roller shell to be great with the bearing moment of torsion to cause the technical problem that roller shell and bearing frame radial slip operation and wearing and tearing, including roller shell and bearing frame, roller shell one end fixed mounting is on the bearing frame, the roller shell other end is connected through excessively cooperating the structure with the bearing frame, excessively cooperate the structure including the annular wedge, annular wedge fixed mounting is between the roller shell other end and bearing frame, set up threaded hole on the annular wedge, the utility model discloses an install excessively complex annular wedge between axle bed and roller shell for bearing frame and roller shell zero clearance fit reduce the moment of torsion between axle bed and the roller shell, and fixed with annular wedge and axle bed through the stay bolt, rethread fastener protects, only need during the dismouting the long bolt and the screw can, the installation is dismantled simple and conveniently.
Description
Technical Field
The utility model relates to a MPF2200 medium speed pulverizer series grinding roller assembly technical field specifically is a wear-resisting type coal pulverizer grinding roller portion roller shell.
Background
In the MPF2200 medium speed coal mill series grinding roller assembly, the assembling form of the roller sleeve and the bearing seat is the cylindrical hole matching, the roller sleeve and the bearing seat adopt the clearance matching, the defect is that the clearance exists between the roller sleeve and the bearing seat, the grinding roller assembly can generate very large torque in the continuous operation process, the torque is directly transmitted to the fixed pressing plate, the fixed pressing plate is difficult to bear and breaks, and finally the roller sleeve and the bearing seat slide radially to operate and wear, because the material of the roller sleeve is high-hardness wear-resistant alloy steel, the material of the bearing seat is nodular cast iron, the hardness difference of the material can lead the bearing seat with low hardness to wear rapidly, the roller sleeve operates at reduced speed along the radial direction along with the increase of the wear of the bearing seat, thereby greatly reducing the efficiency of coal grinding and the yield, and causing the damage of equipment after long-time operation.
The technical problem that the roller sleeve and the bearing seat are abraded due to the fact that the roller sleeve and the bearing seat are large in torque and cause radial sliding operation of the roller sleeve and the bearing seat is caused by the fact that the roller sleeve and the bearing seat are in clearance fit exists in the traditional technical scheme, and a novel roller sleeve for solving the problem needs to be designed at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a wear-resisting type coal pulverizer grinding roller portion roller shell has solved current roller shell and bearing frame and has adopted clearance fit to cause the roller shell to be great with the bearing moment of torsion to cause roller shell and bearing frame radial sliding operation and the technical problem of wearing and tearing.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a wear-resisting type coal pulverizer grinding roller portion roller shell, includes roller shell and bearing frame, roller shell one end fixed mounting is on the bearing frame, the roller shell other end is connected through excessively cooperating the structure with the bearing frame, excessively cooperate the structure including the annular wedge, annular wedge fixed mounting is between the roller shell other end and bearing frame, set up threaded hole on the annular wedge, set up the thread groove on the bearing frame, threaded hole has connect the stay bolt soon, and stay bolt one end runs through the screw hole, the stay bolt runs through the end and connects in the thread groove soon, fixed mounting has fastener on the annular wedge.
Preferably, the fastening device comprises a protection plate, the protection plate covers the side wall surface of the annular wedge, the protection plate is fixedly connected with the annular wedge through a screw, a gasket is sleeved on the screw, and the gasket is in contact with the protection plate.
Preferably, the end face of the protection plate is flush with the end face of the roller sleeve and the end face of the bearing seat.
Preferably, the gasket is made of an elastic gasket material.
Preferably, a preformed groove is formed in the threaded hole, and the head of the long bolt is located in the preformed groove.
Preferably, the annular wedge is of a conical configuration.
Preferably, the threaded hole, the thread groove and the long bolt are in one group, and at least one group of the threaded hole, the thread groove and the long bolt is provided.
Advantageous effects
The utility model provides a wear-resisting type coal pulverizer grinding roller shell has solved current roller shell and bearing frame and has adopted clearance fit to cause the roller shell to operate and the technical problem of wearing and tearing with bearing frame radial slip greatly with the bearing moment of torsion, the utility model discloses an install excessive complex ring wedge between axle bed and roller shell for bearing frame and roller shell zero clearance fit reduce the moment of torsion between axle bed and the roller shell, and fixed with ring wedge and axle bed through the stay bolt, rethread fastener protects, only need during the dismouting the stay bolt and the screw can, the installation is dismantled simple and conveniently.
Drawings
Fig. 1 is the utility model discloses a structural schematic diagram of wear-resisting type coal pulverizer grinding roller portion roller shell.
In the figure: 1-roller sleeve; 2-bearing seat; 3-a ring wedge; 4-a threaded hole; 5-thread groove; 6-long bolt; 7-protection plate; 8-a screw; 9-a gasket; 10-reserving a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a wear-resisting type coal pulverizer grinding roller portion roller shell, includes roller shell 1 and bearing frame 2, 1 one end fixed mounting of roller shell is on bearing frame 2, the 1 other end of roller shell is connected through excessively cooperating the structure with bearing frame 2, excessively cooperate the structure including annular wedge 3, 3 fixed mounting of annular wedge between the 1 other end of roller shell and bearing frame 2, set up threaded hole 4 on the annular wedge 3, set up thread groove 5 on the bearing frame 2, threaded hole 4 internal rotation has long bolt 6, and 6 one end of long bolt runs through threaded hole 4, long bolt 6 runs through the end and connects soon in thread groove 5, fixed mounting has fastener on the annular wedge 3, fastener includes guard plate 7, 7 lid of guard plate are adorned on annular wedge 3 terminal surface, through 8 fixed connection of screw between guard plate 7 and the annular wedge 3, 8 last cover of screw are equipped with packing ring 9, packing ring 9 contacts with guard plate 7, 7 terminal surface and the side wall looks parallel and level of bearing frame 2 terminal surface of annular wedge 7, packing ring 9 adopts the elastic gasket material, be equipped with reservation thread groove 10 on the threaded hole, the long bolt 6 is located 10 the annular wedge portion 10, the bolt structure is a set of annular wedge 4, the thread groove 5 and the threaded hole 4, the threaded hole and the threaded hole 5, the threaded hole and the threaded hole are at least, the threaded hole 5.
The detailed connection means is well known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
The embodiment is as follows: according to the attached drawing 1 of the specification, a roller sleeve 1 and a bearing seat 2 are fixed through a conical annular wedge 3 in a conical excessive matching mode, one end of the roller sleeve 1 is fixedly connected with the bearing seat 2, the annular wedge 3 is fixedly installed between the other end of the roller sleeve 1 and the bearing seat 2, a long bolt 6 is screwed in a threaded hole 4 until the bolt 6 is screwed in a threaded groove 5, the annular wedge 3 is adopted to enable objects between the roller sleeve 1 and the bearing seat 2 to be in clearance fit, abrasion cannot occur between the bearing seat 2 and the roller sleeve 1, the radial sliding phenomenon generated by the roller sleeve 1 and the bearing seat 2 is eliminated, the safety and stability of equipment are ensured, in order to prevent the annular wedge 3 from being abraded, a protection plate 7 is fixedly installed on the annular wedge 3 through a screw 8 and an elastic washer 9, and accordingly the protection effect on the annular wedge 3 is achieved.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Claims (7)
1. The utility model provides a wear-resisting type coal pulverizer grinding roller portion roller shell, includes roller shell (1) and bearing frame (2), roller shell (1) one end fixed mounting is on bearing frame (2), roller shell (1) other end is connected through excessively cooperating the structure with bearing frame (2), its characterized in that, excessively cooperate the structure including annular wedge (3), annular wedge (3) fixed mounting is between roller shell (1) other end and bearing frame (2), set up threaded hole (4) on annular wedge (3), set up thread groove (5) on bearing frame (2), threaded hole (4) internal rotation has connect stay bolt (6), and stay bolt (6) one end runs through threaded hole (4), stay bolt (6) run through the end and connect soon in thread groove (5), fixed mounting has fastener on annular wedge (3).
2. The grinding roll sleeve of the grinding roll part of the wear-resistant coal mill as claimed in claim 1, wherein the fastening device comprises a protection plate (7), the protection plate (7) is covered on the side wall surface of the annular wedge (3), the protection plate (7) is fixedly connected with the annular wedge (3) through a screw (8), a gasket (9) is sleeved on the screw (8), and the gasket (9) is in contact with the protection plate (7).
3. A wear resistant coal mill grinding roll barrel as claimed in claim 2, in which the end surfaces of the protection plate (7) are flush with the end surfaces of the barrel (1) and the bearing chock (2).
4. A wear-resistant coal mill grinding roll portion roll cover according to claim 2, characterized in that the washer (9) is made of an elastic washer material.
5. A wear-resistant coal mill grinding roll portion roll cover according to claim 1, characterized in that the threaded hole (4) is provided with a pre-groove (10), and the head of the long bolt (6) is located in the pre-groove (10).
6. A wear-resistant coal mill grinding roll portion roll cover according to claim 1, characterized in that the annular wedge (3) is of a conical configuration.
7. The grinding roll portion sleeve of the wear-resistant coal mill according to claim 1, characterized in that the threaded holes (4), the threaded grooves (5) and the long bolts (6) are in one group, and at least one group of the threaded holes (4), the threaded grooves (5) and the long bolts (6) is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222807225.0U CN218516912U (en) | 2022-10-24 | 2022-10-24 | Roller sleeve of roller grinding part of wear-resistant coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222807225.0U CN218516912U (en) | 2022-10-24 | 2022-10-24 | Roller sleeve of roller grinding part of wear-resistant coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218516912U true CN218516912U (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222807225.0U Active CN218516912U (en) | 2022-10-24 | 2022-10-24 | Roller sleeve of roller grinding part of wear-resistant coal mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118320936A (en) * | 2024-06-17 | 2024-07-12 | 山东硕源工业装备集团有限公司 | Medium-speed pulverizer grinding roller with compound roller shell |
-
2022
- 2022-10-24 CN CN202222807225.0U patent/CN218516912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118320936A (en) * | 2024-06-17 | 2024-07-12 | 山东硕源工业装备集团有限公司 | Medium-speed pulverizer grinding roller with compound roller shell |
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