Side roll supporting bearing structure of eighteen-roll mill

Abstract

The utility model discloses a side roll supporting bearing structure of an eighteen-roll mill, which comprises an outer sleeve, an inner shaft is connected in the outer sleeve, a supporting assembly is arranged in the middle of the inner shaft, the supporting assembly comprises three groups of top plates positioned in the inner shaft, the three groups of top plates are of a triangular structure, and the three groups of top plates are arranged in the outer sleeve. And a compression spring is installed at the back end of each set of top plates, a guide rod is arranged in each compression spring and is of a telescopic structure, and a contact plate is fixed to the end, away from the top plates, of each guide rod. By arranging the supporting assembly, after the working face of the inner shaft is adjusted, a worker rotates a screw rod through a tool, the screw rod rotates along the inner shaft to drive two sets of extrusion plates to move towards the middle in the inner shaft, and in the moving process, the extrusion plates make contact with contact plates to drive top plates to move towards the outer side of the inner shaft; therefore, the top plate abuts against the outer sleeve in a contact mode, and connection looseness caused by gaps is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a side roller support bearing structure of an eighteen-roller rolling mill. Background Art

[0002] In the 18-roll rolling mill, it includes support rolls, intermediate rolls, working rolls, side rolls and 8 sets of side roll support bearings for supporting the side rolls. The side roll support bearings include supporting outer rings and inner ring shafts. In the past, when the side roll support bearings were installed on the frame of the rolling mill, both ends of the inner ring shaft were fixed on the bearing seat, and then the outer ring was supported to roll in contact with the side rolls.

[0003] Chinese patent publication number CN208695946U discloses a side roller support bearing and its eighteen-roll rolling mill, the side roller support bearing comprises a supporting outer ring, an inner ring shaft and a rolling body, the two ends of the inner ring shaft respectively form mounting sections, the inner ring shaft mounting section is circumferentially provided with at least two indexing holes; the mounting sections on both sides of the inner ring shaft are respectively sleeved with indexing bushings, and the indexing bushings on both sides are fixed; at least one pin hole is provided on the indexing bushing, a limit pin is inserted into the pin hole, the limit pin passes through the pin hole and is inserted into the indexing hole of the inner ring shaft, and limits the rotation of the inner ring shaft relative to the indexing bushing; the eighteen-roll rolling mill comprises a frame, the frame is provided with a side roller support bearing; the side roller support bearing and its eighteen-roll rolling mill increase the service life of the side roller support bearing.

[0004] However, compared with the existing technology and comparative documents, during the use of the existing 18-roller rolling mill, although the side roller support bearing structure increases the service life of the bearing by adjusting the working surface, after the adjustment is completed, the upper working surface is subjected to greater wear, resulting in a large gap between it and the outer sleeve after rotation adjustment, which easily leads to loose connection. Utility Model Content

[0005] The main purpose of the utility model is to provide a side roller support bearing structure of an eighteen-roller rolling mill.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] The side roller support bearing structure of the eighteen-roll rolling mill includes an outer sleeve, an inner shaft is connected to the outer sleeve, a support assembly is installed in the middle of the inner shaft, the support assembly includes three groups of top plates located in the inner shaft, the three groups of top plates are triangular structures, and a compression spring is installed at the back end of each group of top plates, a guide rod is arranged in the compression spring, the guide rod is a telescopic structure, a contact plate is fixed to the end of the guide rod away from the top plate, extrusion plates are symmetrically arranged between the contact plates, and the connection between the contact plate and the extrusion plate is an inclined structure, and a screw is connected to the outside of the extrusion plate.

[0008] Preferably, the inner shaft includes a cavity and a slot, and the extrusion plate is located in the cavity, the top plate is located in the slot, and the top plate is slidably connected to the inner shaft through the slot.

[0009] Preferably, mounting seats are symmetrically fixed at both ends of the inner shaft, and the screw rod passes through the mounting seat and is connected to the inner shaft thread, and a through groove for the screw rod to rotate is opened in the mounting seat.

[0010] Preferably, the distal ends of the two groups of screw rods are provided with fixing grooves for connecting tools, and the fixing grooves are polygonal structures.

[0011] Preferably, three groups of through holes are evenly formed on the mounting seat, and the angle between each group of through holes is 120°.

[0012] Preferably, a bushing is nested on the outer side of the mounting seat, a connecting hole is formed on the bushing, and the connecting hole corresponds to the through hole in a vertical plane.

[0013] The beneficial technical effects are:

[0014] 1. By setting the support assembly, after adjusting the working surface of the inner shaft, the staff can use the tool to rotate the screw, and the screw rotates along the inner shaft to drive the two sets of extrusion plates to move toward the middle of the inner shaft. During the movement, the contact between the extrusion plate and the contact plate drives the top plate to move toward the outside of the inner shaft, so that the top plate and the outer sleeve are in contact with each other to avoid the existence of gaps and cause loose connections.

[0015] 2. During the adjustment process, if there is no gap, the top plate cannot be moved out of the inner shaft. At this time, the top plate is against the outer sleeve. During the extrusion process, the guide rod and the compression spring are forced to shrink, which can effectively ensure the removal distance of the top plate at the worn working surface, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of a side roll support bearing structure of an 18-high rolling mill according to the utility model;

[0017] Figure 2 A main sectional view of a preferred embodiment of a side roll support bearing structure of an 18-high rolling mill according to the utility model;

[0018] Figure 3 A right sectional view of a preferred embodiment of a side roll support bearing structure of an 18-high rolling mill according to the utility model;

[0019] Figure 4 It is a schematic diagram of the connection relationship between the inner shaft, the mounting seat and the through hole in a preferred embodiment of the side roller support bearing structure of the eighteen-roller rolling mill according to the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Outer sleeve; 2. Inner shaft; 201. Cavity; 202. Empty slot; 3. Support assembly; 301. Top plate; 302. Compression spring; 303. Guide rod; 304. Contact plate; 305. Extrusion plate; 306. Screw; 4. Mounting seat; 5. Through hole; 6. Bushing; 7. Connecting hole. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0023] like Figure 1-Figure 4 As shown, the side roller support bearing structure of the 18-high rolling mill provided in this embodiment includes an outer sleeve 1, an inner shaft 2 is connected to the outer sleeve 1, a support assembly 3 is installed in the middle of the inner shaft 2, and the support assembly 3 includes three groups of top plates 301 located in the inner shaft 2. The three groups of top plates 301 are triangular structures, and a compression spring 302 is installed at the back end of each group of top plates 301. The compression spring 302 can ensure the normal movement of the top plate 301. A guide rod 303 is arranged in the compression spring 302, and the guide rod 303 can 01 is guided by the movement of the guide rod 303, the guide rod 303 is a telescopic structure, a contact plate 304 is fixed on the end of the guide rod 303 away from the top plate 301, the contact plate 304 can contact with the extrusion plate 305, the extrusion plates 305 are symmetrically arranged between the contact plates 304, the extrusion plates 305 can extrude the contact plates 304, and the connection between the contact plates 304 and the extrusion plates 305 is an inclined structure, the outside of the extrusion plate 305 is connected with a screw 306, the screw 306 can adjust the position of the extrusion plate 305.

[0024] like Figure 2-Figure 3 As shown, the inner shaft 2 includes a cavity 201 and a slot 202. The slot 202 can guide the top plate 301, and the extrusion plate 305 is located in the cavity 201. The cavity 201 facilitates the movement of the extrusion plate 305. The top plate 301 is located in the slot 202, and the top plate 301 is slidably connected to the inner shaft 2 through the slot 202.

[0025] like Figure 1-Figure 4 As shown, mounting seats 4 are symmetrically fixed at both ends of the inner shaft 2, and the screw 306 passes through the mounting seats 4 and is threadedly connected to the inner shaft 2. A through groove for the screw 306 to rotate is opened in the mounting seat 4, so that the screw 306 can rotate along the mounting seat 4 and the inner shaft 2.

[0026] like Figure 1 and Figure 4As shown, the distal ends of the two sets of screw rods 306 are provided with fixing grooves for connecting tools, and the fixing grooves are polygonal structures, which are convenient for the staff to use tools to drive the screw rods 306 to rotate.

[0027] like Figure 2 As shown, three groups of through holes 5 are evenly formed on the mounting seat 4, and the angle between each group of through holes 5 is 120°, so as to facilitate fixing the inner shaft 2 at the working surface at different positions.

[0028] like Figure 1-Figure 2 As shown, a bushing 6 is nested on the outside of the mounting seat 4, a connecting hole 7 is opened on the bushing 6, and the connecting hole 7 corresponds to the through hole 5 in the vertical plane, so that the staff can adjust it according to the wear of the working surface of the inner shaft 2, and use a fixing device to fix the inner shaft 2 through the connecting hole 7 and the through hole 5.

[0029] Working principle of the device: When the device is used, the staff installs the bushing 6 on the outside of the mounting seat 4 according to the use requirements, and then uses the fixing pin to fix the inner shaft 2 in the mounting seat 4 through the connecting hole 7 and the through hole 5, and fixes the bushing 6 on the external equipment. When the working surface of the inner shaft 2 is worn, the staff pulls out the fixing pin and rotates the inner shaft 2 so that the other through hole 5 corresponds to the connecting hole 7 on the bushing 6, and uses the fixing pin again to connect and fix. After the fixing is completed, the staff uses a tool to rotate the screw 306, and the screw 306 rotates along the inner shaft 2 to drive the two sets of extrusion plates 305 to move toward the middle of the inner shaft 2. During the movement, the contact between the extrusion plate 305 and the contact plate 304 drives the top plate 301 to move toward the outside of the inner shaft 2, so that the top plate 301 contacts and abuts against the outer sleeve 1, avoiding the existence of gaps and causing the connection to become loose.

[0030] During the adjustment process, for the area where no gap appears, the top plate 301 cannot be moved out of the inner shaft 2. At this time, the top plate 301 is against the outer sleeve 1. During the extrusion process, the guide rod 303 and the compression spring 302 are forced to contract, which can effectively ensure the removal distance of the top plate 301 at the worn working surface, thereby improving practicality.

[0031] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. The side roller support bearing structure of the 18-high rolling mill is characterized by: The invention comprises an outer sleeve (1), wherein an inner shaft (2) is connected to the outer sleeve (1), a support assembly (3) is installed in the middle of the inner shaft (2), and the support assembly (3) comprises three groups of top plates (301) located in the inner shaft (2), the three groups of top plates (301) are triangular in structure, and a compression spring (302) is installed at the back end of each group of top plates (301), a guide rod (303) is arranged in the compression spring (302), and the guide rod (303) is a telescopic structure, a contact plate (304) is fixed to one end of the guide rod (303) away from the top plate (301), and extrusion plates (305) are symmetrically arranged between the contact plates (304), and the connection between the contact plates (304) and the extrusion plates (305) is an inclined structure, and a screw rod (306) is connected to the outside of the extrusion plate (305).

2. The side roller support bearing structure of the 18-high rolling mill according to claim 1, characterized in that: The inner shaft (2) comprises a cavity (201) and an empty slot (202), the extrusion plate (305) is located in the cavity (201), the top plate (301) is located in the empty slot (202), and the top plate (301) is slidably connected to the inner shaft (2) via the empty slot (202).

3. The side roller support bearing structure of the 18-high rolling mill according to claim 2, characterized in that: The inner shaft (2) has mounting seats (4) symmetrically fixed at both ends, and the screw rod (306) passes through the mounting seat (4) and is threadedly connected to the inner shaft (2), and a through groove for the screw rod (306) to rotate is provided in the mounting seat (4).

4. The side roller support bearing structure of the 18-high rolling mill according to claim 3, characterized in that: The distal ends of the two groups of screw rods (306) are provided with fixing grooves for connecting tools, and the fixing grooves are polygonal structures.

5. The side roller support bearing structure of the 18-high rolling mill according to claim 4, characterized in that: The mounting seat (4) is evenly provided with three groups of through holes (5), and the angle between each group of through holes (5) is 120°.

6. The side roller support bearing structure of the 18-high rolling mill according to claim 5, characterized in that: A bushing (6) is nested on the outside of the mounting seat (4), a connecting hole (7) is provided on the bushing (6), and the connecting hole (7) corresponds to the position of the through hole (5) on the vertical plane.

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