Roller end shaft sleeve

Abstract

The utility model discloses a roller end shaft sleeve which comprises a shaft sleeve body with a tool withdrawal groove in the inner side, two grooves are correspondingly formed in an inner hole of the shaft sleeve body, lining plates are arranged in the two grooves and fixedly connected with the shaft sleeve body through connecting bolts, and check blocks matched with the tool withdrawal groove are arranged at the ends of the inner sides of the lining plates. And the stop block extends into the inner side of the tool withdrawal groove. In addition, chamfers can be arranged at the positions, located at the ends of the two sides of the check block, of the lining plate. According to the roller end shaft sleeve, reliable positioning of the lining plate in the roller end shaft sleeve can be greatly improved, loosening and falling of the connecting bolt are eradicated, stable rolling of a roller is guaranteed, meanwhile, the chamfer is additionally arranged on the side face of the end of the lining plate, the diameter of a tool withdrawal groove of the shaft sleeve can be effectively reduced, and the strength of the shaft sleeve is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission equipment and relates to a roller end sleeve. Background Art

[0002] The transmission shaft is an important component for transmitting power and is widely used in industrial production, especially in steel production enterprises. With the continuous improvement of steel rolling technology and automation, higher requirements are placed on the transmission accuracy and stability of the transmission shaft. The roller end sleeve is an important component of the transmission shaft that connects the rolling mill rolls. The performance of the roller end sleeve directly affects the transmission accuracy and service life of the transmission shaft, and affects the quality of steel rolling.

[0003] Figure 1-5 The schematic diagram of the existing roller end sleeve assembly is shown: two grooves are correspondingly arranged inside the sleeve 1', and two liner plates 2' are respectively arranged in the grooves and connected to the sleeve 1' through connecting bolts 3' to ensure that the liner plates and the sleeve are relatively fixed, and a backing groove 11' is arranged at the inner hole of the sleeve 1' at the inner end of the liner plate 2'. During the steel rolling process, since both the liner plate and the sleeve are subjected to frequent impacts and vibrations transmitted by the roller, the liner plate connecting bolts will become looser and looser, and in severe cases, the liner plate connecting bolts will be sheared off, affecting the normal rolling of the roller.

[0004] At the same time, since the liner is placed inside the sleeve, a backlash groove is provided inside the sleeve. After assembly, one end of the liner is tightly attached to the backlash groove of the sleeve. In order to avoid interference between the liner and the rounded corner of the backlash groove, which causes the liner to be unable to be assembled in place, it is necessary to increase the diameter of the backlash groove of the sleeve, which results in a thinning of the sleeve wall thickness and reduces the strength of the sleeve. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the utility model provides a roller end sleeve, which greatly improves the reliable positioning of the liner in the roller end sleeve, prevents the loosening and falling off of the connecting bolts, ensures the stable rolling of the roller, and at the same time, adds a chamfer on the side of the liner end, which can effectively reduce the diameter of the sleeve's backing groove and increase the sleeve strength.

[0006] The technical solution of the utility model to solve the technical problem is as follows:

[0007] The utility model discloses a roller end shaft sleeve, comprising a shaft sleeve with a knife retreat groove on the inner side, wherein two grooves are correspondingly provided in the inner hole of the shaft sleeve, lining plates are arranged in the two grooves and are connected and fixed to the shaft sleeve by connecting bolts, and a stopper matched with the knife retreat groove is arranged at the inner end of the lining plate, and the stopper extends into the inner side of the knife retreat groove.

[0008] Preferably, the lining plate is provided with chamfers at the end positions on both sides of the stopper.

[0009] Preferably, the stopper is arranged at a middle position of the inner end portion of the lining plate.

[0010] Preferably, the lining plate and the stop block are integrally formed and processed as a whole piece, or the lining plate and the stop block can be detachably connected, and the lining plate and the stop block are processed separately and then assembled together.

[0011] When the lining plate and the stopper are connected in a detachable manner, a first sinker matched with the stopper is provided at the stopper installation position on the lining plate, and a plurality of first screw holes are evenly provided on the first sinker; a plurality of second sinkers and second bottom holes corresponding to the first screw holes on the first sinker are provided on the stopper, and the stopper is installed in the first sinker and is connected and fixed by fasteners passing through the corresponding first screw holes and second bottom holes.

[0012] Preferably, the fastener is a hexagon socket bolt.

[0013] Compared with the prior art, the roller end sleeve provided by the utility model has the following beneficial effects:

[0014] (1) The utility model has a novel and reasonable design, a simple structure, is easy to implement, has a low production cost and a good effect.

[0015] (2) The utility model can effectively improve the reliable positioning of the liner in the roller end sleeve by arranging a stopper matched with the backing groove at the end of the liner, prevent the loosening and falling off of the connecting bolts, and ensure the stable rolling of the roller.

[0016] (3) The utility model can effectively reduce the diameter of the backing groove during the processing of the roller end sleeve by adding a chamfer to the inner end of the liner, thereby improving the overall strength of the sleeve.

[0017] (4) The utility model provides a first countersunk platform and a first screw hole on the lining plate, and provides a second countersunk hole and a second bottom hole on the stopper, so as to facilitate the connection between the stopper and the lining plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the arrangement of the liner in the existing roller end sleeve;

[0019] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure;

[0020] Figure 3 yes Figure 1 A top view schematic diagram of the existing liner;

[0021] Figure 4 for Figure 3 A schematic cross-sectional view of XX;

[0022] Figure 5 for Figure 3 Front view of the diagram;

[0023] Figure 6 It is a structural schematic diagram of the utility model;

[0024] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure;

[0025] Figure 8 for Figure 6 A top view schematic diagram of the existing liner;

[0026] Fig. 9 for Figure 8 Schematic cross-section diagram of YY;

[0027] Fig.10 for Figure 8 Front view of the diagram;

[0028] Fig.11 for Fig.10 A magnified schematic diagram of point A;

[0029] Fig.12 for Figure 6 A schematic top view of the middle stopper;

[0030] Fig.13 for Fig.12 A schematic cross-sectional view of ZZ;

[0031] Figure 1-5 Middle: 1', shaft sleeve; 11', undercut groove; 2', lining plate; 3', connecting bolt;

[0032] Figure 6-13 In the figure: 1. Bushing; 11. Backing groove; 2. Lining plate; 21. First sinker; 22. First screw hole; 23. Chamfer; 3. Connecting bolt; 4. Stopper; 41. Second sinker; 42. Second bottom hole; 5. Fastener. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the disclosure belongs. The "upper", "lower", "left", "right", "front", "back", "inside", "outside" and the like used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. The places not described in detail in the utility model are all known technologies of technicians in the technical field.

[0034] Embodiment 1:

[0035] As attached Figure 6-13 As shown, the utility model is a roller end sleeve, comprising a sleeve 1 with a backing groove 11 on the inner side, two grooves correspondingly provided in the inner hole of the sleeve 1, liner plates 2 are arranged in the two grooves and connected and fixed to the sleeve 1 by connecting bolts 3, and a stopper 4 adapted to the backing groove 11 is arranged at the inner end of the liner plate 2, and the stopper 4 extends into the inner side of the backing groove 11. Through the stopper 4 in the above structure, the positioning of the liner plate 2 in the groove of the inner hole of the sleeve 1 can be improved, the connection effect between the liner plate and the sleeve can be improved, the loosening and falling off of the connecting bolts can be prevented, and the stable rolling of the roller can be ensured.

[0036] Furthermore, the stopper 4 is disposed at the middle position of the inner end of the liner 2 , which more effectively improves the installation and use effect of the liner 2 on the inner side of the shaft sleeve 1 .

[0037] Example 2

[0038] On the basis of Example 1, the liner 2 is provided with chamfers 23 at the end positions on both sides of the block 4. The chamfers 23 can effectively reduce the diameter of the backing groove during the processing of the roller end sleeve and improve the overall strength of the sleeve.

[0039] Embodiment 3:

[0040] On the basis of Embodiment 1 or 2, the lining plate 2 and the stopper 4 are integrally formed and processed as a whole piece.

[0041] Embodiment 4:

[0042] Based on Example 1 or 2, the lining plate 2 and the stopper 4 are detachably connected, and the lining plate 2 and the stopper 4 are processed separately and then assembled together. When the stopper 4 is damaged, only the stopper is replaced without replacing the entire stopper.

[0043] In order to facilitate the installation and replacement of the stopper on the lining plate, a first sinking platform 21 adapted to the stopper 4 is provided at the installation position of the stopper 4 on the lining plate 2, and a plurality of first screw holes 22 are evenly provided at the first sinking platform 21; a plurality of second sinking platforms 41 and second bottom holes 42 corresponding to the first screw holes 22 at the first sinking platform 21 are provided on the stopper 4, and the stopper 4 is installed in the first sinking platform 21 and connected and fixed by fasteners 5 passing through the corresponding first screw holes 22 and second bottom holes 42. Further, the fasteners 5 are hexagon socket head bolts.

Claims

1. A roller end sleeve, comprising a sleeve (1) having a cutter groove (11) on the inner side, wherein the inner hole of the sleeve (1) is provided with two grooves corresponding to each other, and lining plates (2) are arranged in the two grooves and are connected and fixed to the sleeve (1) by connecting bolts (3), characterized in that: A stopper (4) adapted to the tool retreat groove (11) is provided at the inner end of the lining plate (2), and the stopper (4) extends into the inner side of the tool retreat groove (11).

2. A roller end sleeve according to claim 1, characterized in that: The lining plate (2) is provided with chamfers (23) at the end positions on both sides of the stopper (4).

3. The roller end sleeve according to claim 1, characterized in that: The stopper (4) is arranged at a middle position of the inner end portion of the lining plate (2).

4. A roller end sleeve according to any one of claims 1 to 3, characterized in that: The lining plate (2) and the stopper (4) are integrally formed.

5. A roller end sleeve according to any one of claims 1 to 3, characterized in that: The lining plate (2) and the stopper (4) are detachably connected.

6. A roller end sleeve according to claim 5, characterized in that: A first sinker (21) adapted to the stopper (4) is provided at the mounting position of the stopper (4) on the lining plate (2), and a plurality of first screw holes (22) are evenly provided on the first sinker (21); a plurality of second sinkers (41) and second bottom holes (42) corresponding one to one to the first screw holes (22) on the first sinker (21) are provided on the stopper (4), and the stopper (4) is mounted in the first sinker (21) and connected and fixed by fasteners (5) passing through the corresponding first screw holes (22) and the second bottom holes (42).

7. A roller end sleeve according to claim 6, characterized in that: The fastener (5) is a hexagon socket bolt.

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