Roller axial adjusting mechanism and rolling equipment

Abstract

The utility model provides a roller axial adjusting mechanism and rolling equipment, the roller axial adjusting mechanism comprises a roller shaft, the two ends of the roller shaft are respectively assembled in a first bearing seat and a second bearing seat on a box body through a first bearing and a second bearing; an outer ring of the first bearing and an outer ring of the second bearing are in sliding fit with the first bearing seat and the second bearing seat respectively; an elastic piece capable of providing axial elastic force for the first bearing is arranged in the first bearing seat, and a driving piece capable of pushing the second bearing to move axially is arranged in the second bearing seat. The roller axial adjusting mechanism can solve the problems that an existing roller axial adjusting process is tedious in operation and low in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling equipment, in particular to a roller axial adjustment mechanism and rolling equipment. Background Art

[0002] With the development of the steel industry and the influence of market demand, the quality requirements of rebar products have been improved, and the high-speed bar production process has been widely used in recent years. Compared with the rolling speed of ordinary bars (18m / s), the current maximum rolling speed of high-speed bars is about 45m / s, and it also has the advantages of good product appearance quality and high yield rate.

[0003] The pinch roller is the key equipment for clamping the rods in the high-speed rod production line. The equipment diagram is as follows: Figure 1 The motor drives the gear distribution box through the coupling, and the upper and lower output shafts are connected to the upper and lower roller shafts of the pinch roller (body) through the cross universal coupling to drive the roller ring. The clamping roller includes an upper roller shaft 03 and a lower roller shaft 08 which can approach or move away from each other, and ring rollers are arranged on the upper roller shaft 03 and the lower roller shaft 08, wherein the upper roller shaft 03 is installed on the upper swing seat 02 through a bearing, and a roller ring is installed on it, the axis center of the upper swing shaft 04 is fixed (positioned on the box body 10 through a bearing), and the upper swing seat 02 can swing up and down around the upper swing shaft 04; the lower roller shaft 08 is installed on the lower swing seat 09 through a bearing, and a roller ring is installed on it, the axis center of the lower swing shaft 07 is fixed (positioned on the box body 10 through a bearing), and the lower swing seat 09 swings up and down around the lower swing shaft 07; the lower end of the connecting rod 05 of the cylinder 01 is hinged to the lower swing seat 09, and the upper end of the connecting rod 05 of the cylinder 01 is connected to the piston rod of the cylinder 01; the connecting plate 06 is hinged to the upper swing seat 02 and the lower swing seat 09 to make them open and close symmetrically. When the piston rod of cylinder 01 extends, the upper swing seat 02 swings upward, and the lower swing seat 09 swings downward, and the roll gap opens; when the piston rod of cylinder 01 retracts, the upper swing seat 02 swings downward, and the lower swing seat 09 swings upward, and the roll gap closes, forming a roller ring that clamps the workpiece.

[0004] While the roller ring is clamped up and down, axial alignment adjustment is also required to ensure the consistency of the hole shape and the rod. However, due to the high speed of high-speed bar rolling, a small gap in the equipment may cause large vibration. Therefore, a new axial adjustment device is needed to solve the problem of axial adjustment of the roller in a high-speed rolling environment. Utility Model Content

[0005] The utility model aims to provide a roller axial adjustment mechanism and rolling equipment, so as to solve the problems of complicated operation and low efficiency in the existing roller axial adjustment process.

[0006] On the one hand, the utility model provides an axial adjustment mechanism for a rolling mill roller, which includes a rolling shaft, wherein the two ends of the rolling shaft are respectively assembled in a first bearing seat and a second bearing seat on a box body through a first bearing and a second bearing, and the outer ring of the first bearing and the outer ring of the second bearing are respectively slidably matched with the first bearing seat and the second bearing seat; an elastic member that can provide axial elastic force for the first bearing is provided in the first bearing seat, and a driving member that can push the second bearing to move axially is provided in the second bearing seat.

[0007] The roller axial adjustment mechanism described in the utility model is used for axial adjustment of the roller shaft of the roller in the rolling mill. During the axial adjustment process, the elastic parts and the driving parts at both ends of the roller shaft are coordinated to adjust the driving part at one end of the roller shaft, and the elastic part at the other end of the roller shaft is pressed and followed. The adjustment is convenient, there is no axial gap during the adjustment process, the adjustment time is shortened, and the adjustment accuracy is improved.

[0008] The roller axial adjustment mechanism of the utility model utilizes elastic parts with prestress to keep the axial force stable all the time, eliminates the axial gap, is beneficial to reduce the vibration of the roller shaft, and improves the stability of the equipment.

[0009] In a preferred embodiment of the present invention, the first bearing and the second bearing are both single-row tapered roller bearings, and the large-diameter ends of the two groups of tapered rollers in the two single-row tapered roller bearings are close to each other.

[0010] In this embodiment, the tapered roller bearing improves the axial load-bearing capacity of the bearing, which is beneficial to the stable operation of the equipment.

[0011] In a preferred embodiment of the present invention, a first transparent cover is provided in the first bearing seat, and the outer ring of the first bearing and one end of the elastic member are axially pressed against two sides of the first transparent cover respectively.

[0012] In this embodiment, the first transparent cover is provided so that the axial elastic force provided by the elastic member can be transmitted to the first bearing through the first transparent cover, thereby ensuring that the elastic member can stably play the role of axial compensation.

[0013] In a preferred embodiment of the present invention, an end cover is connected to the outer side of the first bearing seat, and the other end of the elastic member axially abuts against the end cover.

[0014] In this embodiment, the first bearing seat is open on both sides, with a roller shaft passing through the inner side and an end cover sealed on the outer side. The provision of the end cover can facilitate the disassembly and installation of the elastic member, thereby facilitating the replacement of the elastic member.

[0015] In a preferred embodiment of the present invention, a first retaining ring is further provided in the first bearing seat, and the inner ring of the first bearing and the first positioning shoulder of the roller shaft are axially pressed against two sides of the first retaining ring respectively.

[0016] In this embodiment, the first retaining ring can seal the inner side of the first bearing to prevent the lubricating oil in the first bearing from flowing out.

[0017] In a preferred embodiment of the present invention, a first sealing ring is provided between the outer side surface of the first retaining ring and the inner side surface of the first bearing seat.

[0018] In this embodiment, the provision of the first sealing ring can further improve the sealing effect of the first bearing.

[0019] In a preferred embodiment of the present invention, the driving member is an adjusting bolt, a bolt connection seat is connected to the outer side of the second bearing seat, the adjusting bolt is threadedly connected to the bolt connection seat, and the adjusting bolt is coaxially arranged with the roller shaft.

[0020] In this embodiment, the driving member is an adjusting bolt, and the axial adjustment of the roller shaft can be achieved by rotating the adjusting bolt. The structure is simple and the adjustment process is relatively convenient.

[0021] In a preferred embodiment of the present invention, a second transparent cover is provided in the second bearing seat, and the outer ring of the second bearing and one end of the adjusting bolt are axially pressed against two sides of the second transparent cover respectively.

[0022] In this embodiment, the second transparent cover is arranged so that the axial driving force provided by the driving member can be transmitted to the second bearing through the second transparent cover, thereby ensuring that the roller shaft can move axially under the action of the driving member.

[0023] In a preferred embodiment of the present invention, a second retaining ring is further provided in the second bearing seat, and the inner ring of the second bearing and the second positioning shoulder of the roller shaft are axially pressed against two sides of the second retaining ring respectively.

[0024] In this embodiment, the second retaining ring can seal the inner side of the second bearing to prevent the lubricating oil in the second bearing from flowing out.

[0025] In a preferred embodiment of the present invention, a second sealing ring is provided between the outer side surface of the second retaining ring and the inner side surface of the second bearing seat.

[0026] In this embodiment, the provision of the second sealing ring can further improve the sealing effect of the second bearing.

[0027] On the other hand, the utility model also provides a rolling equipment, which has at least one group of upper rollers and lower rollers arranged opposite to each other up and down, wherein the first roller shaft in the upper roller and the second roller shaft in the lower roller are both provided with the roller axial adjustment mechanism as described above.

[0028] The rolling equipment described in the utility model is provided with the above-mentioned roller axial adjustment mechanism. During the axial adjustment process, the elastic part at one end of the roller shaft is adjusted through the cooperation of the elastic parts and the driving parts at both ends of the roller shaft, and the elastic part at the other end of the roller shaft is pressed and followed, which is convenient for adjustment. There is no axial gap during the adjustment process, which shortens the adjustment time, improves the adjustment accuracy, and at the same time improves the stability of the rolling equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0030] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0031] Figure 1 This is a schematic diagram of the structure of the pinch roller of the utility model;

[0032] Figure 2 It is a structural schematic diagram of the roller axial adjustment mechanism of the utility model;

[0033] Figure 3 It is a schematic diagram of the structure of the rolling equipment described in the utility model.

[0034] Description of reference numerals:

[0035] 01. Cylinder; 02. Upper swing seat; 03. Upper roller shaft; 04. Upper swing shaft; 05. Connecting rod; 06. Connecting plate; 07. Lower swing shaft; 08. Lower roller shaft; 09. Lower swing seat; 10. Box;

[0036] 20. roller shaft; 21. first roller shaft; 22. second roller shaft; 23. first positioning shoulder; 24. second positioning shoulder;

[0037] 30. First bearing seat; 31. First bearing; 32. First transparent cover; 33. End cover; 34. First retaining ring; 35. First sealing ring;

[0038] 40. second bearing seat; 41. second bearing; 42. second transparent cover; 43. second retaining ring; 44. second sealing ring;

[0039] 50. Elastic parts;

[0040] 60. Adjusting bolt; 61. Bolt connection seat. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0042] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] Implementation method 1:

[0045] like Figure 2 As shown, the utility model provides a roller axial adjustment mechanism, which includes a roller shaft 20, and the two ends of the roller shaft 20 are respectively assembled in the first bearing seat 30 and the second bearing seat 40 on the box body 10 through the first bearing 31 and the second bearing 41, and the outer ring of the first bearing 31 and the outer ring of the second bearing 41 are respectively slidably matched with the first bearing seat 30 and the second bearing seat 40; the first bearing seat 30 is provided with an elastic member 50 that can provide axial elastic force for the first bearing 31, and the second bearing seat 40 is provided with a driving member that can push the second bearing 41 to move axially.

[0046] The roller axial adjustment mechanism described in the utility model is used for axial adjustment of the roller shaft 20 of the roller in the rolling mill. During the axial adjustment process, through the cooperation of the elastic members 50 and the driving member at both ends of the roller shaft 20, the driving member at one end of the roller shaft 20 is adjusted, and the elastic member 50 at the other end of the roller shaft 20 is pressed and followed, which is convenient for adjustment. There is no axial gap during the adjustment process, which shortens the adjustment time and improves the adjustment accuracy.

[0047] The roller axial adjustment mechanism of the utility model utilizes the elastic member 50 with prestress to keep the axial force stable all the time, eliminates the axial gap, is beneficial to reduce the vibration of the roller shaft 20, and improves the stability of the equipment.

[0048] The detailed structure of the roller axial adjustment mechanism of the utility model and the position and connection relationship between the various components will be described in detail below.

[0049] It should be noted that the terms “left” and “right” in the following text are based on Figure 2 The directions shown are taken as the standard, and the “inside” and “outside” mentioned above are relative to the inside and outside of the box body 10 .

[0050] First, if Figure 2 As shown, mounting holes for installing the rolling rollers are opened on two opposite side walls of the box body 10, and the first bearing seat 30 and the second bearing seat 40 are respectively passed through the two mounting holes. The first bearing seat 30 and the second bearing seat 40 are fixed to the side walls of the box body 10 by bolts.

[0051] The first bearing 31 and the second bearing 41 are respectively sleeved on both ends of the roller shaft 20, and the first bearing 31 and the second bearing 41 are respectively assembled into the first bearing seat 30 and the second bearing seat 40, wherein the inner ring of the first bearing 31 and the inner ring of the second bearing 41 are respectively interference fit with the roller shaft 20, that is, the first bearing 31 and the second bearing 41 cannot move axially relative to the roller shaft 20, and the outer ring of the first bearing 31 and the outer ring of the second bearing 41 are respectively transition fit or clearance fit with the inner side wall of the first bearing seat 30 and the inner side wall of the second bearing seat 40, so that the first bearing 31 can move axially relative to the first bearing seat 30, and the second bearing 41 can move axially relative to the second bearing seat 40, that is, the roller shaft 20 can move axially relative to the bearing seat.

[0052] Secondly, an elastic member 50 capable of providing axial elastic force for the first bearing 31 is disposed in the first bearing seat 30. The elastic member 50 is disposed on the axial outer side of the roller shaft 20. The two ends of the elastic member 50 are respectively against the outer shell wall of the first bearing seat 30 and the first bearing 31. The elastic member 50 assembled in the first bearing seat 30 has an initial prestress, such as Figure 2As shown, the elastic member 50 can provide the first bearing 31 (ie, the roller shaft 20 ) with an axial leftward elastic force.

[0053] A driving member capable of pushing the second bearing 41 to move axially is disposed in the second bearing seat 40. The driving member is connected to the second bearing seat 40 and is located axially outside the roller shaft 20. The driving member can be configured as a telescopic rod, and one end of the driving member abuts against the second bearing 41. Figure 2 As shown, the driving member can supply the second bearing 41 (ie, the roller shaft 20 ) with an axial driving force to the right.

[0054] The specific adjustment process of the roller axial adjustment mechanism described in the utility model is as follows:

[0055] When the roller 20 needs to be adjusted to the right, the operating driving member increases its driving force to the right on the second bearing 41. At this time, the first bearing 31 will move to the right with the roller 20 and compress the elastic member 50. When the roller 20 moves to the right to the predetermined position, the current driving force (or position) of the driving member is maintained. The two ends of the roller 20 are locked in position under the action of the driving member and the elastic member 50, thereby realizing the adjustment of the roller 20 to the right.

[0056] When the roller 20 needs to be adjusted to the left, the operating driving member reduces its driving force to the right on the second bearing 41. At this time, the first bearing 31 drives the roller 20 and the second bearing 41 to move to the left under the elastic force of the elastic member 50. When the roller 20 moves to the left to the predetermined position, the current driving force (or position) of the driving member is maintained. The two ends of the roller 20 are locked in position under the action of the driving member and the elastic member 50, thereby realizing the adjustment of the roller 20 to the left.

[0057] As described above, during the adjustment of the roller shaft 20, bidirectional adjustment of the roller shaft 20 can be achieved by adjusting the driving member on one side of the box body 10, which is simple and convenient to operate; at the same time, there is no axial gap during the adjustment process, and multiple adjustments are not required, which shortens the adjustment time and improves the adjustment accuracy.

[0058] The structure and connection relationship of the preferred embodiment of the axial adjustment mechanism of the roller 20 described in the present utility model will be described in detail below.

[0059] According to one embodiment of the present utility model, Figure 2 As shown, the first bearing 31 and the second bearing 41 are both single-row tapered roller bearings, and the large diameter ends of the two groups of tapered rollers in the two single-row tapered roller bearings are close to each other. The tapered roller bearing improves the axial load-bearing capacity of the bearing, which is conducive to the stable operation of the equipment.

[0060] Preferably, without considering the cost, the first bearing 31 and the second bearing 41 can be configured as double-row tapered roller bearings to further improve the radial load-bearing capacity of the bearings.

[0061] According to one embodiment of the present utility model, Figure 2 As shown, a first transparent cover 32 is provided in the first bearing seat 30, and the outer ring of the first bearing 31 and one end of the elastic member 50 are axially pressed against two sides of the first transparent cover 32. The arrangement of the first transparent cover 32 enables the axial elastic force provided by the elastic member 50 to be transmitted to the first bearing 31 through the first transparent cover 32, thereby ensuring that the elastic member 50 can stably play the role of axial compensation.

[0062] Specifically, the first transparent cover 32 is a disc-shaped structure, the outer edge of its left side abuts against the radial outer side of the outer ring of the first bearing 31, and the right side abuts against one end of the elastic member 50. The first transparent cover 32 can move axially in the first bearing seat 30 under the action of the elastic member 50 and the first bearing 31.

[0063] According to one embodiment of the present utility model, Figure 2 As shown, an end cover 33 is connected to the outer side of the first bearing seat 30, and the other end of the elastic member 50 axially abuts against the end cover 33. The first bearing seat 30 is in the form of openings on both sides, with the roller shaft 20 passing through the inner side, and the outer side is sealed by the end cover 33. The arrangement of the end cover 33 can facilitate the disassembly and installation of the elastic member 50, and thus facilitate the replacement of the elastic member 50; the end cover 33 is connected to the outer opening of the first bearing seat 30 by bolts.

[0064] According to one embodiment of the present utility model, Figure 2 As shown, a first retaining ring 34 is further provided in the first bearing seat 30, and the inner ring of the first bearing 31 and the first positioning shoulder 23 of the roller shaft 20 are axially pressed against the two sides of the first retaining ring 34. The first retaining ring 34 can seal the inner side of the first bearing 31 to prevent the lubricating oil in the first bearing 31 from flowing out.

[0065] Specifically, the first retaining ring 34 is a circular ring structure, which is passed through the right end of the roller shaft 20. The right side of the first retaining ring 34 abuts against the radial inner side of the inner ring of the first bearing 31, and the left side abuts against the first positioning shoulder 23 of the roller shaft 20. The outer side is in sealing contact with the inner side of the first bearing seat 30; the first retaining ring 34 can move axially in the first bearing seat 30 together with the roller shaft 20.

[0066] According to one embodiment of the present utility model, Figure 2As shown, a first sealing ring 35 is provided between the outer side surface of the first retaining ring 34 and the inner side surface of the first bearing seat 30. The provision of the first sealing ring 35 can further improve the sealing effect of the first bearing 31.

[0067] According to one embodiment of the present utility model, Figure 2 As shown, the driving member is an adjusting bolt 60, and a bolt connection seat 61 is connected to the outer side of the second bearing seat 40 by bolts. The adjusting bolt 60 is threadedly connected to the bolt connection seat 61, and the adjusting bolt 60 is coaxially arranged with the roller shaft 20. The driving member is the adjusting bolt 60, and the axial adjustment of the roller shaft 20 can be achieved by rotating the adjusting bolt 60. The structure is simple and the adjustment process is relatively convenient.

[0068] When the roller shaft 20 needs to be adjusted to the right, the adjusting bolt 60 is rotated to move it toward the second bearing 41 ; when the roller shaft 20 needs to be adjusted to the left, the adjusting bolt 60 is rotated to move it away from the second bearing 41 .

[0069] According to one embodiment of the present utility model, Figure 2 As shown, a second transparent cover 42 is provided in the second bearing seat 40, and the outer ring of the second bearing 41 and one end of the adjusting bolt 60 are axially pressed against two sides of the second transparent cover 42. The second transparent cover 42 is provided so that the axial driving force provided by the driving member can be transmitted to the second bearing 41 through the second transparent cover 42, thereby ensuring that the roller shaft 20 can move axially under the action of the driving member.

[0070] Specifically, the second transparent cover 42 is a disc-shaped structure, the outer edge of its right side abuts against the radial outer side of the outer ring of the second bearing 41, and the left side abuts against the free end of the adjusting bolt 60; the second transparent cover 42 can move axially in the second bearing seat 40 under the action of the adjusting bolt 60 and the second bearing 41.

[0071] According to one embodiment of the present utility model, Figure 2 As shown, a second retaining ring 43 is further provided in the second bearing seat 40, and the inner ring of the second bearing 41 and the second positioning shoulder 24 of the roller shaft 20 are axially pressed against the two sides of the second retaining ring 43. The second retaining ring 43 can seal the inner side of the second bearing 41 to prevent the lubricating oil in the second bearing 41 from flowing out.

[0072] Specifically, the second retaining ring 43 is a circular ring structure, which is passed through the left end of the roller shaft 20. The left side of the second retaining ring 43 abuts against the radial inner side of the inner ring of the second bearing 41, and the right side abuts against the second positioning shoulder 24 of the roller shaft 20. The outer side is in sealing contact with the inner side of the second bearing seat 40; the second retaining ring 43 can move axially in the second bearing seat 40 together with the roller shaft 20.

[0073] According to one embodiment of the present utility model, Figure 2 As shown, a second sealing ring 44 is provided between the outer side surface of the second retaining ring 43 and the inner side surface of the second bearing seat 40. The provision of the second sealing ring 44 can further improve the sealing effect of the second bearing 41.

[0074] Implementation method 2:

[0075] like Figure 3 As shown, the utility model also provides a rolling equipment, which has at least one group of upper rollers and lower rollers arranged opposite to each other up and down, wherein the first roller shaft 21 in the upper roller and the second roller shaft 22 in the lower roller are both provided with a roller axial adjustment mechanism as described in embodiment one.

[0076] The rolling equipment described in the utility model is provided with the above-mentioned roller axial adjustment mechanism. During the axial adjustment process, through the cooperation of the elastic members 50 and the driving members at both ends of the roller shaft 20, the elastic member 50 at one end of the roller shaft 20 is adjusted, and the elastic member 50 at the other end of the roller shaft 20 is pressed and followed, which is convenient for adjustment. There is no axial gap during the adjustment process, which shortens the adjustment time, improves the adjustment accuracy, and at the same time improves the stability of the rolling equipment operation.

[0077] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific embodiment of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A roller axial adjustment mechanism, characterized in that: It includes a roller shaft, the two ends of which are respectively assembled in a first bearing seat and a second bearing seat on a box body through a first bearing and a second bearing, the outer ring of the first bearing and the outer ring of the second bearing are respectively slidably matched with the first bearing seat and the second bearing seat; an elastic member that can provide axial elastic force for the first bearing is provided in the first bearing seat, and a driving member that can push the second bearing to move axially is provided in the second bearing seat.

2. The roller axial adjustment mechanism according to claim 1, characterized in that: The first bearing and the second bearing are both single-row tapered roller bearings, and the large-diameter ends of the two groups of tapered rollers in the two single-row tapered roller bearings are close to each other.

3. The roller axial adjustment mechanism according to claim 2, characterized in that: A first transparent cover is arranged in the first bearing seat, and the outer ring of the first bearing and one end of the elastic member are axially pressed against two sides of the first transparent cover respectively.

4. The roller axial adjustment mechanism according to claim 3, characterized in that: An end cover is connected to the outer side of the first bearing seat, and the other end of the elastic member axially abuts against the end cover.

5. The roller axial adjustment mechanism according to any one of claims 1 to 4, characterized in that: A first retaining ring is further provided in the first bearing seat, and the inner ring of the first bearing and the first positioning shoulder of the roller shaft are axially pressed against two sides of the first retaining ring respectively.

6. The roller axial adjustment mechanism according to claim 5, characterized in that: A first sealing ring is provided between the outer side surface of the first retaining ring and the inner side surface of the first bearing seat.

7. The roller axial adjustment mechanism according to claim 2, characterized in that: The driving member is an adjusting bolt, the outer side of the second bearing seat is connected with a bolt connection seat, the adjusting bolt is threadedly connected to the bolt connection seat, and the adjusting bolt is coaxially arranged with the roller shaft.

8. The roller axial adjustment mechanism according to claim 7, characterized in that: A second transparent cover is arranged in the second bearing seat, and the outer ring of the second bearing and one end of the adjusting bolt are axially pressed against two sides of the second transparent cover respectively.

9. The roller axial adjustment mechanism according to claim 7 or 8, characterized in that: A second retaining ring is also provided in the second bearing seat, and the inner ring of the second bearing and the second positioning shoulder of the roller shaft are axially pressed against two sides of the second retaining ring respectively.

10. The roller axial adjustment mechanism according to claim 9, characterized in that: A second sealing ring is provided between the outer side surface of the second retaining ring and the inner side surface of the second bearing seat.

11. A rolling equipment, characterized in that: The rolling equipment comprises at least one set of upper rollers and lower rollers arranged opposite to each other up and down, wherein the first roller shaft in the upper roller and the second roller shaft in the lower roller are both provided with a roller axial adjustment mechanism as described in any one of claims 1-10.

Images