Working roll and mounting roll seat

Abstract

The utility model discloses a working roll and a mounting roll seat, and belongs to the technical field of working rolls. Comprising a main shaft, a roller ring and a roller sleeve are installed outside the main shaft, a conical barrel is arranged on the outer side of the roller ring, the roller sleeve is installed on the outer side of the roller ring, and the roller ring is located between the main shaft and the roller sleeve; connecting sleeves are mounted at the two ends of the roll ring and are suitable for connecting the roll ring and the roll sleeve; connecting cavities are formed between the two ends of the roller sleeve and the two ends of the roller ring, and positioning screws are installed in the connecting cavities. And the positioning screw is suitable for being fixedly mounted on the connecting sleeve. The utility model solves the problem that in the prior art, the roller sleeve and the roller ring are mostly connected on the roller ring by adopting a taper sleeve and are connected at two ends, and the inner part lacks connection strength to reinforce the connection of the roller sleeve and the roller ring.

Description

Technical Field

[0001] The utility model belongs to the technical field of working rolls and relates to a working roll and a mounting roll seat. Background Art

[0002] A work roll is a component used to support and transport materials or objects. It is typically cylindrical and made of metal or other materials and is widely used in various mechanical equipment. Most work rolls support, transport, and process materials. In many mechanical equipment, work rolls support materials to ensure stability and safety during processing. Work rolls consist of solid rolls and rolls with sleeves. When operating in high-temperature, high-pressure, high-speed, or high-load environments, the roll surface is susceptible to damage such as wear and cracking. To protect the quality of the rolls and extend their service life, roll sleeves or roll rings are typically installed. For example, in hot-rolling rolls, the use of roll sleeves can effectively prevent wear and cracking on the roll surface. Reference CN202122582798.3 describes a work roll that is easy to maintain. In the prior art, roll sleeves and roll rings are often connected to the roll ring using tapered sleeves at both ends. This lacks the internal connection strength needed to strengthen the connection between the roll sleeve and roll ring.

[0003] In summary, a working roll and a mounting roll seat are proposed in the present invention. Summary of the Invention

[0004] In order to solve the above technical problems, the inventors have come up with the technical solution of the present utility model through practice and summary. The present utility model discloses that the basic concept of the technical solution adopted by the present utility model to solve the above technical problems is:

[0005] A working roll comprises a main shaft, a roll ring and a roll sleeve mounted outside the main shaft, a tapered cylinder being arranged on the outside of the roll ring, the roll sleeve being mounted on the outside of the roll ring, and the roll ring being located between the main shaft and the roll sleeve;

[0006] Connecting sleeves are installed at both ends of the roller ring, and the connecting sleeves are suitable for connecting the roller ring and the roller sleeve;

[0007] A connecting cavity is provided between the two ends of the roller sleeve and the roller ring, and a positioning screw is installed in the connecting cavity; the positioning screw is suitable for being fixedly installed on the connecting sleeve.

[0008] In a further technical solution, the connecting sleeve includes a connecting portion and an extending portion, and the connecting portion and the extending portion are integrally connected;

[0009] A connecting groove is provided on the connecting portion and is located on the side facing away from the roller ring; a connecting bolt is installed in the connecting groove, and the bolt body of the connecting bolt is suitable for fixing the connecting sleeve and the roller ring and is threadedly connected to the roller ring.

[0010] In a further technical solution, notched surfaces are provided at both ends of the roller ring, and the extension portion is adapted to the notched surfaces; the roller ring and the main shaft are connected by installing a flat key.

[0011] In a further technical solution, a retaining ring is fixedly mounted on the outer end of the roller sleeve, and the diameter of the retaining ring is larger than the diameter of the connecting sleeve.

[0012] In a further technical solution, mounting seats are installed at both ends of the main shaft, and the mounting seats include a bearing seat, an end cover and a blind cover. The end cover and the blind cover are installed on both sides of the bearing seat respectively, and the bearing seat, the end cover and the blind cover are threadedly connected by mounting position bolts. The blind cover is located on the side of the bearing seat away from the roller sleeve;

[0013] A spherical roller bearing is installed in the bearing seat; the outer ring of the spherical roller bearing is connected to the bearing seat, and the inner ring of the spherical roller bearing is connected to the main shaft.

[0014] In a further technical solution, shaft end retaining rings and spacer sleeves are respectively installed on both sides of the inner ring of the spherical roller bearing. The shaft end retaining rings are located at the end of the main shaft and are connected by installing end bolts; the spacer sleeve is sleeved on the main shaft and has an end cover sleeved on the outside, and the spacer sleeve is suitable for abutting against the connecting sleeve.

[0015] In a further technical solution, the bolt body end of the positioning bolt extends into the retaining ring, the main shaft is a stepped shaft and the middle diameter is larger than the diameter at both ends; positioning screw holes are opened on the mounting seat and are located at both ends of the mounting seat.

[0016] Beneficial effects

[0017] The utility model has the following advantages:

[0018] The utility model installs a conical cylinder, which has a strengthening connection effect and can achieve a similar sleeve expansion effect, thereby realizing a tight connection between the roller sleeve and the roller ring.

[0019] This embodiment features a connecting sleeve, which connects the roller ring and sleeve to strengthen the connection. Set screws and connecting bolts are used to secure the connection. Notches are provided on the end faces of the roller ring to better fit the extension. Because the spindle's central diameter is larger than its end diameters, the extension of the connecting sleeve fits snugly where the diameter changes, achieving a contact fit.

[0020] The utility model is provided with a retaining ring, which can block the crushed materials generated by the working roller conveying the material as much as possible, block them outside the main shaft, reduce the wear of the main shaft and the main shaft and the connecting sleeve, and the main shaft and the end cover, and play a protective effect.

[0021] The utility model adopts a spacer sleeve and a shaft end retaining ring located on both sides of the spherical roller bearing to achieve the positioning effect of the spherical roller bearing, and can also achieve the positioning and limiting effect of the abutment connecting sleeve through the spacer sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 This is a cross-sectional view of a working roll according to Example 1 of the present utility model;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0025] Figure 3 This is a cross-sectional view of a working roll and a mounting roll seat of Example 2 of the present utility model;

[0026] Figure 4 for Figure 3 A magnified view of part B;

[0027] Figure 5 This is a schematic top view of Example 2 of the present utility model.

[0028] In the figure: 1. Main shaft; 2. Roller ring; 24. Connecting cavity; 3. Roller sleeve; 4. Connecting sleeve; 41. Positioning screw; 42. Connecting part; 43. Extension part; 44. Connecting bolt; 5. Flat key; 6. Retaining ring; 7. Bearing seat; 8. End cover; 9. Blind cover; 10. Spherical roller bearing; 11. Shaft end retaining ring; 12. Spacer; 13. End bolt; 14. Positioning bolt; 15. Positioning screw hole; 16. Tapered cylinder. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] like Figure 1 and 2FIG. 1 is an embodiment of the present invention, which includes a working roll comprising a main shaft 1, a roll ring 2 and a roll sleeve 3 mounted outside the main shaft 1, a tapered cylinder 16 being provided on the outside of the roll ring 2, the roll sleeve 3 being mounted on the outside of the roll ring 2, and the roll ring 2 being located between the main shaft 1 and the roll sleeve 3;

[0033] Connecting sleeves 4 are installed at both ends of the roller ring 2, and the connecting sleeves 4 are suitable for connecting the roller ring 2 and the roller sleeve 3;

[0034] A connecting cavity 24 is provided between the ends of the roller sleeve 3 and the roller ring 2, and a positioning screw 41 is installed in the connecting cavity 24; the positioning screw 41 is adapted to be fixedly mounted on the connecting sleeve 4. The tapered tube 16 can be installed by pre-drilling the roller sleeve and then using thermal expansion and contraction. This provides a reinforced connection, similar to the expansion effect of the sleeve, for a tight connection between the roller sleeve and the roller ring.

[0035] like Figure 2 As shown, the connecting sleeve 4 includes a connecting portion 42 and an extending portion 43, which are integrally connected. The connecting portion 42 is provided with a connecting groove, located on the side facing away from the roller ring 2. A connecting bolt 44 is installed in the connecting groove. The bolt body of the connecting bolt 44 is suitable for fixing the connecting sleeve 4 and the roller ring 2 and is threadedly connected to the roller ring 2. The roller ring 2 has notched surfaces at both ends, and the extending portion 43 is adapted to fit into the notched surfaces. The roller ring 2 and the main shaft 1 are connected by installing a flat key 5.

[0036] A retaining ring 6 is fixedly mounted on the outer end of the roller sleeve 3, and the diameter of the retaining ring 6 is larger than the diameter of the connecting sleeve 4. This embodiment is provided with a connecting sleeve, which is connected between the roller ring and the roller sleeve to strengthen the connection, and is fastened by positioning screws and connecting bolts respectively. A notched surface is provided on the end face of the roller ring to better fit the extension. Since the middle diameter of the main shaft is larger than the diameters at both ends, the extension of the connecting sleeve can fit in the diameter change position to achieve abutment and fit. Adhesive material can be filled in the connecting cavity to achieve the connection strength of the roller sleeve, roller ring and connecting sleeve. This embodiment is provided with a retaining ring, which can block the debris generated by the working roller conveying material as much as possible, block it outside the main shaft, reduce the wear of the main shaft, the main shaft and the connecting sleeve, and the main shaft and the end cover, and play a protective role.

[0037] Example 2

[0038] like Figure 3-5, is another embodiment of the present invention. On the basis of Example 1, mounting seats are installed at both ends of the main shaft 1, and the mounting seats include a bearing seat 7, an end cover 8 and a blind cover 9. The end cover 8 and the blind cover 9 are installed on both sides of the bearing seat 7, respectively, and the bearing seat 7, the end cover 8 and the blind cover 9 are threadedly connected by mounting position bolts 14. The blind cover 9 is located on the side of the bearing seat 7 away from the roller sleeve 3;

[0039] A spherical roller bearing 10 is installed in the bearing seat 7 ; the outer ring of the spherical roller bearing 10 is connected to the bearing seat 7 , and the inner ring of the spherical roller bearing 10 is connected to the main shaft 1 .

[0040] like Figure 4 As shown, a shaft end retaining ring 11 and a spacer sleeve 12 are respectively installed on both sides of the inner ring of the spherical roller bearing 10. The shaft end retaining ring 11 is located at the end of the main shaft 1 and is connected by installing end bolts 13; the spacer sleeve 12 is sleeved on the main shaft 1, and an end cover 8 is sleeved on the outside. The spacer sleeve 12 is suitable for abutting against the connecting sleeve 4.

[0041] like Figure 3 As shown, the end of the positioning bolt 14 extends into the retaining ring 6. The main shaft 1 is a stepped shaft with a larger diameter in the middle than at the ends. The mounting seat is provided with positioning screw holes 15 at both ends. This embodiment utilizes spacers and shaft end retaining rings on both sides of the spherical roller bearing to achieve positioning of the spherical roller bearing. The spacers can also be used to achieve positioning and limiting effects when abutting the connecting sleeve.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0043] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A working roll, characterized in that: The invention comprises a main shaft (1), a roller ring (2) and a roller sleeve (3) are installed outside the main shaft (1), a tapered cylinder (16) is provided outside the roller ring (2), the roller sleeve (3) is installed outside the roller ring (2), and the roller ring (2) is located between the main shaft (1) and the roller sleeve (3); Connecting sleeves (4) are installed at both ends of the roller ring (2), and the connecting sleeves (4) are suitable for connecting the roller ring (2) and the roller sleeve (3); A connecting cavity (24) is provided between the two ends of the roller sleeve (3) and the roller ring (2), and a positioning screw (41) is installed in the connecting cavity (24); the positioning screw (41) is suitable for being fixedly installed on the connecting sleeve (4).

2. A working roll according to claim 1, characterized in that: The connecting sleeve (4) comprises a connecting portion (42) and an extending portion (43), wherein the connecting portion (42) and the extending portion (43) are integrally connected; The connecting portion (42) is provided with a connecting groove, and is located on the side facing away from the roller ring (2); a connecting bolt (44) is installed in the connecting groove, and the bolt body of the connecting bolt (44) is suitable for fixing the connecting sleeve (4) and the roller ring (2), and is threadedly connected to the roller ring (2).

3. A working roll according to claim 2, characterized in that: Both ends of the roller ring (2) are provided with notched surfaces, and the extension portion (43) is adapted to the notched surfaces; The roller ring (2) and the main shaft (1) are connected by installing a flat key (5).

4. A working roll according to claim 3, characterized in that: A retaining ring (6) is fixedly mounted on the outer end of the roller sleeve (3), and the diameter of the retaining ring (6) is larger than the diameter of the connecting sleeve (4).

5. A roller mount for the working roll according to claim 4, characterized in that: Mounting seats are installed at both ends of the main shaft (1), and the mounting seats include a bearing seat (7), an end cover (8) and a blind cover (9). The end cover (8) and the blind cover (9) are installed on both sides of the bearing seat (7), respectively. The bearing seat (7), the end cover (8) and the blind cover (9) are threadedly connected by mounting position bolts (14). The blind cover (9) is located on the side of the bearing seat (7) away from the roller sleeve (3); A spherical roller bearing (10) is installed in the bearing seat (7); the outer ring of the spherical roller bearing (10) is connected to the bearing seat (7), and the inner ring of the spherical roller bearing (10) is connected to the main shaft (1).

6. The mounting roller seat according to claim 5, characterized in that: An axial end retaining ring (11) and a spacer sleeve (12) are respectively installed on both sides of the inner ring of the spherical roller bearing (10); the axial end retaining ring (11) is located at the end of the main shaft (1) and is connected by installing end head bolts (13); the spacer sleeve (12) is sleeved on the main shaft (1) and is sleeved with an end cover (8) on the outside; the spacer sleeve (12) is suitable for abutting against the connecting sleeve (4).

7. The mounting roller seat according to claim 6, characterized in that: The bolt body end of the position bolt (14) extends into the retaining ring (6); the main shaft (1) is a stepped shaft with a middle diameter larger than the diameters at both ends; positioning screw holes (15) are provided on the mounting seat and are located at both ends of the mounting seat.

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