Rolling mill roller way fixing device

Abstract

The utility model belongs to the technical field of rolling mills, and particularly relates to a rolling mill roller way fixing device which comprises a cross beam, a bearing seat, a sleeving piece, a limiting plate and a locking piece, through precise matching of multiple structures, a bolt for fixing the bearing seat is effectively prevented from loosening in the long-term use process, and therefore the operation stability and safety of equipment are improved. According to the design of the device, the device comprises a six-edge pipe structure of a sleeving piece, a sleeving hole of a limiting plate, a protruding strip on the outer side of a positioning pipe and a groove in the inner side of the limiting plate, and precise locking of adjacent parts is achieved through the structures; the locking piece comprises a positioning column, a spring, a lower pressing ring and a pin, stable contact between the limiting plate and the sleeving piece is guaranteed, the problem of looseness or displacement of the device in the using process is solved, the service life of the device is remarkably prolonged, and the production efficiency of the device is remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling mills, and particularly relates to a fixing device for a roller table of a rolling mill. Background Art

[0002] As the main equipment for producing steel plates in a steel rolling mill, the supporting transport roller table plays a crucial role in the entire production process. These roller tables are not only responsible for transporting slab or steel plates, but also bear huge weights and impact forces brought by high-speed operation. Due to the large number of general transport roller tables, combined with the large weight of the slab and the high rolling speed, the roller tables are frequently impacted by the slab or steel plates during long-term use, resulting in the fixing bolts of the bearing seats being prone to loosening. Once this loosening phenomenon occurs, it will directly affect the normal operation of the equipment, cause production failures, and further affect the smoothness and efficiency of production.

[0003] The existing fixing devices for roller tables usually adopt a simple bolt connection method and lack effective anti-loosening measures, making the bolts for fixing the bearing seats prone to loosening under long-term use or large changes in force. This not only increases the frequency and difficulty of maintenance work, but may also cause production stagnation and economic losses. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a fixing device for a roller table of a rolling mill, which can effectively avoid the loosening problem of the bolts for fixing the bearing seats during use and ensure the normal operation of the rolling mill.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fixing device for a roller table of a rolling mill includes a cross beam, on which bearing seats are connected at equal intervals along its length direction by bolts, a sleeve member is sleeved on the nut of the fixing bolt of adjacent bearing seats, and a limiting plate is sleeved on adjacent sleeve members;

[0007] A first positioning hole is penetrated through the top of the cross beam, and the first positioning hole is located at the center of adjacent bearing seats;

[0008] A locking member is inserted into the first positioning hole, and the locking member penetrates through the limiting plate. The locking member is used to lock the position of the limiting plate.

[0009] Further, the sleeve member is arranged in a hexagonal tube structure, and a positioning tube is fixedly connected to the top of the sleeve member;

[0010] Symmetrically penetrating sleeve holes are opened on the upper end face of the limiting plate, and the positioning tube penetrates through the sleeve holes.

[0011] Further, a convex strip is fixedly connected to the outer side of the positioning tube, and the convex strips are distributed at equal intervals around the central axis of the positioning tube;

[0012] Grooves corresponding to the convex strips are formed on the inner side wall of the sleeve hole.

[0013] Further, the locking member includes a positioning column, and a retaining disc is fixedly connected to the bottom end of the positioning column;

[0014] A second positioning hole is formed through the center of the top of the limiting plate, and the positioning column passes through the second positioning hole and the first positioning hole.

[0015] Further, a spring is sleeved on the positioning column, and the spring is located above the limiting plate;

[0016] A pressing ring is sleeved on the positioning column, and the pressing ring is located on the top of the spring.

[0017] Further, a pin hole is formed through the side surface of the top of the positioning column, and a pin for limiting the position of the pressing ring is inserted into the pin hole.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The rolling mill roller path fixing device provided by the present utility model effectively solves the problem that the bolts for fixing the bearing seat are prone to loosening in the prior art through a clever structural design. The bearing seats arranged at equal intervals along the length direction of the cross beam are ensured not to loosen under long-term stress or vibration through the multiple fixing structures of bolts with the sleeve member and the limiting plate, thereby improving the operation stability of the equipment. This structure not only simplifies the installation and maintenance process of the device, but also significantly reduces the risk of equipment failure caused by bolt loosening, and improves the production efficiency and safety of the rolling mill.

[0020] The design of the hexagonal tube structure of the sleeve member enables it to fit tightly with the nut, and through the precise cooperation of the positioning tube and the limiting plate, relative rotation between adjacent components is prevented. This design effectively avoids the problem of device failure caused by the loosening of the bearing seat bolts, and at the same time ensures the structural stability and reliability of the entire device during operation.

[0021] The convex strip on the outer side of the positioning tube is engaged with the groove on the inner side of the limiting plate, realizing effective locking of the positioning tube, and further enhancing the connection strength between the sleeve member and the limiting plate. Through this engaging structure, the present utility model can prevent any loosening between the sleeve member and the limiting plate caused by external forces, thereby improving the overall service life of the device.

[0022] The design of the locking component includes positioning posts, springs, a pressing ring, and pins. The precise cooperation of these components enables the limiting plate to maintain a stable state after installation. The arrangement of the spring and the pressing ring ensures close contact between the limiting plate and the positioning component by continuously applying pressure. Meanwhile, the use of pins further prevents the position deviation of the pressing ring. This design significantly improves the locking effect of the device, effectively preventing any displacement or loosening problems during the use of the device, thus ensuring the normal operation and safe production of the rolling mill roller path. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0025] Figure 3 is a schematic structural diagram of the positioning component of the present utility model Figure 1 ;

[0026] Figure 4 is a schematic structural diagram of the positioning component of the present utility model Figure 2 ;

[0027] Figure 5 is a schematic structural diagram of the limiting plate of the present utility model;

[0028] Figure 6 is a schematic structural diagram of the locking component of the present utility model.

[0029] In the drawings, the list of components represented by each reference numeral is as follows:

[0030] 1. Cross beam; 11. First positioning hole;

[0031] 2. Bearing seat;

[0032] 3. Positioning component; 31. Positioning tube; 311. Ridge;

[0033] 4. Limiting plate; 41. Second positioning hole; 42. Sleeve hole; 421. Groove;

[0034] 5. Locking component; 51. Positioning post; 511. Stop disc; 512. Pin connection hole;

[0035] 52. Spring; 53. Pressing ring; 54. Pin. Detailed Embodiment

[0036] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific scope of protection requested by the present utility model.

[0037] Refer to Figures 1-6 , a fixing device for a rolling mill roller table, comprising a cross beam 1, on which a plurality of bearing seats 2 are connected at equal intervals along its length direction by bolts; each bearing seat 2 is used to support the rolling mill roller table, so that the rolling mill roller table can run stably on the cross beam 1. Sleeve positioners 3 are sleeved on the fixing bolts of adjacent bearing seats 2. The sleeve positioners 3 are tightly sleeved on the nuts to prevent the nuts from loosening during operation, thus avoiding equipment failures caused by bolt loosening; Limiting plates 4 are sleeved on adjacent sleeve positioners 3. The setting of the limiting plates 4 is used to limit the axial movement of the sleeve positioners 3, so that the sleeve positioners 3 can always be in a stable position; A first positioning hole 11 is penetrated through the top of the cross beam 1, and the first positioning hole 11 is located at the center of adjacent bearing seats 2 to ensure that the locking member 5 can effectively position the limiting plate 4 and the sleeve positioner 3; A locking member 5 is inserted into the first positioning hole 11. The locking member 5 penetrates through the limiting plate 4 and locks the position of the limiting plate 4 through a limiting structure, thereby ensuring the stability of the entire device.

[0038] Refer to Figures 2-4 , the sleeve positioner 3 is set as a hexagonal tube structure, which helps to increase the contact area with the nut and provide a better locking effect; A positioning tube 31 is fixedly connected to the top of the sleeve positioner 3. The positioning tube 31 cooperates with the limiting plate 4 to prevent the sleeve positioner 3 from rotating and ensure its stability during use; Sleeve holes 42 are symmetrically penetrated through the upper end face of the limiting plate 4. The setting of the sleeve holes 42 cooperates with the positioning tube 31, so that the positioning tube 31 can smoothly pass through the sleeve holes 42, thereby firmly connecting the sleeve positioner 3 and the limiting plate 4 together and avoiding loosening problems caused by external forces.

[0039] Refer to Figures 3-5 , a convex strip 311 is fixedly connected to the outer side of the positioning tube 31. The convex strips 311 are distributed at equal intervals around the central axis of the positioning tube 31, and the convex strips 311 correspond to the grooves 421 on the inner side wall of the sleeve hole 42; Through the mutual engagement between the grooves 421 and the convex strips 311, the positioning tube 31 can be effectively prevented from rotating relative to the sleeve hole 42, so as to ensure that the relative positions of the sleeve positioner 3 and the limiting plate 4 remain unchanged and further improve the overall stability of the device.

[0040] Refer to Figure 6 , the locking member 5 includes a positioning column 51. A retaining disk 511 is fixedly connected to the bottom end of the positioning column 51. The retaining disk 511 is located below the limiting plate 4 and is used to support the positioning column 51 and prevent it from moving downward; A second positioning hole 41 is penetrated through the center of the top of the limiting plate 4. The positioning column 51 passes through the second positioning hole 41 and the first positioning hole 11, so that the positioning column 51 can stably pass through the limiting plate 4 and cooperate with the first positioning hole 11 on the cross beam 1, thereby realizing the effective fixation of the limiting plate 4.

[0041] Refer to Figure 6 A spring 52 is sleeved on the positioning post 51. The spring 52 is located above the limiting plate 4. The setting of the spring 52 can apply a downward pressure on the limiting plate 4, so as to keep the close contact between the limiting plate 4 and the sleeve member 3 and prevent it from loosening during operation. A pressing ring 53 is also sleeved on the positioning post 51. The pressing ring 53 is located at the top of the spring 52. Through the compression of the spring 52 by the pressing ring 53, the spring 52 is kept in a predetermined pressure state, so as to ensure the locking effect of the limiting plate 4.

[0042] Refer to Figure 6 A pin hole 512 is formed through the side surface of the top of the positioning post 51. A pin 54 for limiting the position of the pressing ring 53 is inserted into the pin hole 512. The insertion of the pin 54 ensures that the pressing ring 53 will not move up or down at the predetermined position, further ensuring the stable compression state of the spring 52, so as to realize the reliable locking of the limiting plate 4 and the sleeve member 3 and prevent any loosening and failure of the device during use.

[0043] The working principle of the utility model is as follows:

[0044] During use, the sleeve member 3 is sleeved on the nut of the bolt of the fixed bearing seat 2, and the screw on the bolt passes through the positioning tube 31. Then, the sleeve hole 42 formed on the limiting plate 4 is sleeved on the positioning tube 31.

[0045] A convex strip 311 is fixedly connected to the outer side of the positioning tube 31. The convex strips 311 are evenly distributed around the central axis of the positioning tube 31.

[0046] A groove 421 corresponding to the convex strip 311 is formed on the inner side wall of the sleeve hole 42. Through the mutual engagement between the groove 421 and the convex strip 311, the relative rotation between the sleeve member 3 and the limiting plate 4 can be avoided.

[0047] Then, the positioning post 51 is passed through the first positioning hole 11 and the second positioning hole 41, and the spring 52 and the pressing ring 53 are sleeved on the positioning post 51 in turn. Finally, the pin 54 is inserted into the pin hole 512.

[0048] By setting the locking member 5, the position of the limiting plate 4 can be locked, and the limiting plate 4 can lock the position of the sleeve member 3. The sleeve member 3 can lock the nut on the bolt of the fixed bearing seat 2, so as to avoid the loosening of the bolt on the fixed bearing seat 2 during use.

[0049] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in the art without special explanation and limitation.

Claims

1. A fixing device for a rolling mill roller table, comprising a cross beam (1), and bearing seats (2) are connected to the cross beam (1) at equal intervals along its length direction by bolts, and it is characterized in that: A positioning member (3) is sleeved on the nut of the fixing bolt of the adjacent bearing seat (2), and a limiting plate (4) is sleeved on the adjacent positioning member (3); A first positioning hole (11) is formed through the top of the cross beam (1), and the first positioning hole (11) is located at the center of the adjacent bearing seat (2); A locking member (5) is inserted into the first positioning hole (11), and the locking member (5) penetrates through the limiting plate (4). The locking member (5) is used to lock the position of the limiting plate (4).

2. The fixing device for the mill roller table according to claim 1, wherein: The positioning member (3) is arranged in a hexagonal tube structure, and a positioning tube (31) is fixedly connected to the top of the positioning member (3); Through holes (42) are symmetrically formed through the upper end face of the limiting plate (4), and the positioning tube (31) penetrates through the through holes (42).

3. A rolling mill roller table fixing device according to claim 2, characterized in that: A convex strip (311) is fixedly connected to the outer side of the positioning tube (31), and the convex strips (311) are evenly distributed around the central axis of the positioning tube (31); A groove (421) corresponding to the convex strip (311) is formed on the inner side wall of the through hole (42).

4. The rolling mill roller table fixing device according to claim 1, characterized in that: The locking member (5) includes a positioning column (51), and a retaining disc (511) is fixedly connected to the bottom end of the positioning column (51); A second positioning hole (41) is formed through the center of the top of the limiting plate (4), and the positioning column (51) passes through the second positioning hole (41) and the first positioning hole (11).

5. The fixing device for the mill roller table according to claim 4, characterized in that: A spring (52) is sleeved on the positioning column (51), and the spring (52) is located above the limiting plate (4); A pressing ring (53) is sleeved on the positioning column (51), and the pressing ring (53) is located on the top of the spring (52).

6. The fixed device for the mill roller table according to claim 5, characterized in that: A pin hole (512) is formed through the side surface of the top of the positioning column (51), and a pin (54) for limiting the position of the pressing ring (53) is inserted into the pin hole (512).

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