Quick assembling structure for holding roller of large horizontal ring rolling mill

Abstract

The utility model discloses a quick assembly structure for a holding roller of a large horizontal ring rolling mill, which relates to the technical field of equipment parts of the large horizontal ring rolling mill and comprises a holding roller shaft, a lower holding roller, a holding roller seat, an upper holding roller, a lower holding roller gland, a holding roller bearing spacer bush, a middle holding roller gland, an upper holding roller gland and a holding roller top gland. The device is compact in structure, high in stability, small in occupied space and convenient to install and maintain, all the assemblies are fixed through bolts, assembly and disassembly are more convenient, and production efficiency is improved; the split modular holding roller can be quickly and correspondingly replaced when a certain part is damaged, so that the maintenance time and cost are reduced; and the roller holding shaft and the components on the outer side of the roller holding shaft are made of S355NL, and the damaged components can be reused after being welded and repaired, so that the maintenance cost is greatly reduced, and the resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of components of large horizontal ring rolling machines, and particularly to a quick assembly structure for the holding rollers of a large horizontal ring rolling machine. Background Technique

[0002] In the prior art, the holding rollers of large ring rolling machines generally adopt an integral structure. However, the use of integral holding rollers has the following problems: 1. Time-consuming and laborious maintenance and disassembly: When maintenance or replacement is required for the integral holding roller, the entire holding roller needs to be disassembled, which greatly increases the difficulty and time of maintenance; 2. The extension of the maintenance cycle will lead to production interruption, thus affecting the production rhythm and production efficiency; 3. Short service life: The integral holding roller generally needs 3-day maintenance after being used for 2 months, which indicates that there are problems with the durability of the integral holding roller and thus more frequent maintenance is required; 4. The material of the existing integral holding roller is 42CRMO. 42CRMO is a commonly used alloy steel with good strength and toughness, but its non-weldable property means that once damaged, it may not be repaired by welding and can only be replaced as a whole, which increases the maintenance cost and waste of resources.

[0003] A large horizontal ring rolling machine with the application number: CN201120440825.7 uses an integral holding roller, and the use of the integral holding roller has problems such as time-consuming and laborious maintenance and disassembly, affecting the production rhythm and production efficiency, and short service life. Content of the Utility Model

[0004] The purpose of the utility model is to provide a quick assembly structure for the holding rollers of a large horizontal ring rolling machine to solve the problems of time-consuming and laborious maintenance and disassembly, affecting the production rhythm and production efficiency, and short service life of the integral holding roller as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A quick assembly structure for the holding rollers of a large horizontal ring rolling machine, including a vertical holding roller shaft, and a lower holding roller, a holding roller seat, and an upper holding roller are sequentially sleeved on the outside of the holding roller shaft from bottom to top. A lower holding roller gland is provided between the lower holding roller and the holding roller seat. The holding roller seat includes a lower holding roller seat, an upper holding roller seat, and a holding roller seat connecting plate that connects the two holding roller seats into one body on the outside. An upper holding roller is arranged between the lower holding roller seat and the upper holding roller seat. An inner circular ring-shaped holding roller bearing spacer and an outer middle holding roller gland are provided between the upper holding roller and the lower holding roller seat. An inner circular ring-shaped holding roller bearing spacer and an outer upper holding roller gland are provided between the upper holding roller and the upper holding roller seat. A holding roller top gland is provided at the top of the upper holding roller seat and the top end of the holding roller shaft.

[0006] Preferably, the holding roller shaft includes a large-diameter lower holding roller shaft body and a small-diameter upper holding roller shaft body that are coaxial. At the bottom end of the lower holding roller shaft body, a radially annularly concave holding roller shaft annular groove is provided and a holding roller limit key is clamped. In the upper middle part of the lower holding roller shaft body, a lower shaft body convex ring that protrudes radially outward is provided. On the side wall of the lower holding roller shaft body below the lower shaft body convex ring, a vertical radially concave lower holding roller key installation groove is provided and a plurality of radially concave keyway screw holes are provided therein. A lower holding roller key fixed by a bolt is embedded in the lower holding roller key installation groove, and a lower holding roller is clamped by the lower holding roller key; at the top end of the upper holding roller shaft body, a reduced-diameter upper shaft body connecting shaft is coaxially provided and a concave axial center screw hole is provided at the axial center of its top end. On the same circumference outside the axial center screw hole, a plurality of annularly arranged screw holes are evenly provided. A holding roller pressing cover is provided through the axial center screw hole and the plurality of annularly arranged screw holes; on the side wall of the upper holding roller shaft body, an upper holding roller key installation groove that is on the same vertical line as the lower holding roller key installation groove is vertically provided and a plurality of radially concave keyway screw holes are provided therein. An upper holding roller key fixed by a bolt is embedded in the upper holding roller key installation groove, and an upper holding roller is clamped by the upper holding roller key.

[0007] Preferably, the lower holding roller includes a cylindrical lower holding roller main body and a lower holding roller key groove that is vertically penetrated and concave on its inner wall and is clamped and fixed with the lower holding roller key. The bottom end of the lower holding roller main body is provided with an upwardly concave lower holding roller circular groove. On the same circumference of the top plane of the lower holding roller circular groove, a plurality of lower holding roller screw holes are evenly provided. A holding roller limit ring fixed by a bolt is embedded in the lower holding roller circular groove; the inner diameter of the holding roller limit ring is equal to the outer diameter of the holding roller limit key.

[0008] Preferably, the lower roller holder is circularly arranged and sleeved above the lower shaft convex ring of the lower shaft body of the roller shaft. A plurality of annularly arranged lower roller holder through holes are uniformly arranged along the axial direction on the same circumference of the annular side wall of the lower roller holder. A lower roller holder horizontal connecting plate horizontally extending out and connected and fixed to the roller holder connecting plate is arranged at the middle of the outer side wall of the lower roller holder. A lower roller pressing cover is arranged below the lower roller holder, and a middle roller pressing cover is arranged above it; the upper roller holder is circularly arranged and sleeved outside the connecting shaft of the upper shaft body. A plurality of annularly arranged upper roller holder through holes are uniformly arranged along the axial direction on the same circumference of the annular side wall of the upper roller holder. An upper roller holder horizontal connecting plate horizontally extending out and connected and fixed to the roller holder connecting plate is arranged at the middle of the outer side wall of the upper roller holder. An upper roller pressing cover is arranged below the upper roller holder through hole, and a roller top pressing cover is arranged above it; at the side of the top end of the roller holder connecting plate opposite to the roller shaft, a connecting plate flange horizontally extending outwards is arranged, and a plurality of vertical flange through holes are arranged on the connecting plate flange.

[0009] Preferably, the upper roller is an upper roller main body arranged in a cylindrical shape, and a vertically penetrating and concave upper roller key groove is arranged on its inner wall, and the upper roller key groove is arranged in a clamping manner with the upper roller key.

[0010] Preferably, the lower roller pressing cover includes a cylindrical lower roller pressing cover sleeve. An inner plate of the lower roller pressing cover radially extending towards the axis and abutted against the side wall of the lower shaft convex ring is arranged on the inner wall of the lower roller pressing cover sleeve. An outer plate of the lower roller pressing cover radially extending outwards is arranged on the outer side wall of the lower roller pressing cover sleeve, and a plurality of lower roller pressing cover through holes corresponding to the lower roller holder through holes one by one are arranged on the same circumference of the outer plate.

[0011] Preferably, the structure of the middle roller pressing cover is the same as that of the lower roller pressing cover, including a vertically cylindrical middle roller pressing cover sleeve. An inner plate of the middle roller pressing cover radially extending towards the axis and abutted against the outer wall of the roller bearing spacer is arranged on the inner wall of the middle roller pressing cover sleeve. An outer plate of the middle roller pressing cover radially extending outwards is arranged on the outer side wall of the middle roller pressing cover sleeve, and a plurality of middle roller pressing cover through holes corresponding to the lower roller holder through holes one by one are arranged on the same circumference of the outer plate of the middle roller pressing cover.

[0012] Preferably, the structure of the upper holding roll gland is the same as that of the lower holding roll gland, including a vertical cylindrical upper holding roll gland sleeve. An upper holding roll gland inner plate that radially protrudes towards the axis and abuts against the outer wall of the holding roll bearing spacer is provided on the inner wall of the upper holding roll gland sleeve. An upper holding roll gland outer plate that radially protrudes outwards is provided on the outer side wall of the upper holding roll gland sleeve, and a plurality of upper holding roll gland through holes corresponding to the upper holding roll seat through holes of the upper holding roll seat are provided on the same circumference of the upper holding roll gland outer plate.

[0013] Preferably, the holding roll top gland includes an inner holding roll inner gland and an outer holding roll outer gland. The holding roll inner gland includes a disc-shaped inner gland main board. A vertically downward inner gland flange is provided at the edge of the inner gland main board. The inner diameter of the inner gland flange is equal to the diameter of the connecting shaft of the upper shaft body. A plurality of inner gland through holes corresponding to the annularly arranged screw holes are provided on the same circumference of the inner gland main board. The holding roll outer gland includes an outer gland cover that bowl-shapedly covers the outside of the holding roll inner gland. An outer gland flat plate that radially protrudes outwards is provided on the outer side of the vertical side wall of the outer gland cover. A plurality of outer gland through holes corresponding to the upper holding roll seat through holes of the upper holding roll seat are provided on the same circumference of the outer gland flat plate.

[0014] Preferably, the holding roll shaft and the lower holding roll, holding roll seat, upper holding roll, lower holding roll gland, holding roll bearing spacer, middle holding roll gland, upper holding roll gland, and holding roll top gland installed on its outer side are all made of S355NL.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model replaces the traditional integral holding roll with a split-structured holding roll and designs the holding roll into a modular structure. Thus, when a certain component is damaged, the corresponding component can be quickly replaced without replacing the entire holding roll, thereby greatly reducing the maintenance time and cost.

[0017] 2. The holding roll shaft and the lower holding roll, holding roll seat, upper holding roll, lower holding roll gland, holding roll bearing spacer, middle holding roll gland, upper holding roll gland, and holding roll top gland installed on its outer side are all made of S355NL, enabling the holding roll shaft and its installed accessories provided by the present utility model to be reused after repair, thereby greatly reducing the maintenance cost and avoiding waste of resources.

[0018] 3. Compact structure: By sequentially sleeving components such as the lower holding roll, holding roll seat, and upper holding roll on the holding roll shaft, the overall structure is designed compactly, occupying a small space and being convenient for installation and maintenance. And by using the bolt fixing method, the assembly and disassembly of each component are more convenient, improving the production efficiency.

[0019] 4. High stability: By setting the roll holding limit key, roll holding bearing spacer, roll holding gland, etc., the stability of the structure is enhanced, and vibration and wear during operation are reduced. Brief Description of the Drawings

[0020] Figure 1 Schematic diagram of the present utility model;

[0021] Figure 2 is Figure 1 structural schematic diagram;

[0022] Figure 3 Front view and top view of the roll holding shaft;

[0023] Figure 4 The upper part is Figure 3 Cross-sectional view taken along A-A, and the lower part is cross-sectional view taken along B-B in the cross-sectional view taken along A-A;

[0024] Figure 5 Front view and cross-sectional view of the upper roll holding key;

[0025] Figure 6 Front view and cross-sectional view of the lower roll holding key;

[0026] Figure 7 Front view, top view, and bottom view of the lower roll holding;

[0027] Figure 8 Top view and cross-sectional view of the roll holding limit key;

[0028] Figure 9 Bottom view and cross-sectional view of the roll holding limit ring;

[0029] Figure 10 Top view and cross-sectional view of the upper roll holding;

[0030] Figure 11 Front view of the roll holding seat;

[0031] Figure 12 is Figure 11 top view and bottom view;

[0032] Figure 13 Top view and cross-sectional view of the lower roll holding gland;

[0033] Figure 14 Top view and cross-sectional view of the roll holding bearing spacer;

[0034] Figure 15 Top view and cross-sectional view of the middle roll holding gland;

[0035] Figure 16 Top view and cross-sectional view of the upper roll holding gland;

[0036] Figure 17It is the top view and sectional view of the inner gland of the supporting roller;

[0037] Figure 18 It is the top view and sectional view of the outer gland of the supporting roller;

[0038] In the figure: supporting roller shaft - 1, lower shaft body of the supporting roller - 101, upper shaft body of the supporting roller - 102, annular groove of the supporting roller shaft - 103, supporting roller limit key - 104, convex ring of the lower shaft body - 105, key installation groove of the lower supporting roller - 106, keyway screw hole - 107, lower supporting roller key - 108, connecting shaft of the upper shaft body - 109, axial center screw hole - 110, annularly arranged screw holes - 111, key installation groove of the upper supporting roller - 112, upper supporting roller key - 113, lower supporting roller - 2, lower supporting roller main body - 21, keyway of the lower supporting roller - 22, circular groove of the lower supporting roller - 23, screw hole of the lower supporting roller - 24, supporting roller limit ring - 25, supporting roller seat - 3, lower supporting roller seat - 31, through hole of the lower supporting roller seat - 311, horizontal connecting plate of the lower supporting roller seat - 312, upper supporting roller seat - 32, through hole of the upper supporting roller seat - 321, horizontal connecting plate of the upper supporting roller seat - 322, connecting plate of the supporting roller seat - 33, folded edge of the connecting plate - 331, upper supporting roller - 4, upper supporting roller main body - 41, keyway of the upper supporting roller - 42, lower gland of the supporting roller - 5, sleeve of the lower gland of the supporting roller - 51, inner plate of the lower gland of the supporting roller - 52, outer plate of the lower gland of the supporting roller - 53, through hole of the lower gland of the supporting roller - 54, supporting roller bearing spacer - 6, middle gland of the supporting roller - 7, sleeve of the middle gland of the supporting roller - 71, inner plate of the middle gland of the supporting roller - 72, outer plate of the middle gland of the supporting roller - 73, through hole of the middle gland of the supporting roller - 74, upper gland of the supporting roller - 8, sleeve of the upper gland of the supporting roller - 81, inner plate of the upper gland of the supporting roller - 82, outer plate of the upper gland of the supporting roller - 83, through hole of the upper gland of the supporting roller - 84, top gland of the supporting roller - 9, inner gland of the supporting roller - 91, main board of the inner gland - 911, folded edge of the inner pressing plate - 912, through hole of the inner pressing plate - 913, outer gland of the supporting roller - 92, cover of the outer gland - 921, flat plate of the outer gland - 922, through hole of the outer gland - 923. Detailed implementation manners

[0039] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Please refer to Figures 1 - 18 , Figure 1 which is a schematic diagram of the present invention; Figure 2 is Figure 1 a structural schematic diagram; Figure 3 is the front view and top view of the supporting roller shaft; Figure 4 The upper part is Figure 3 a sectional view taken along A - A, and the lower part is a sectional view of B - B in the sectional view taken along A - A; Figure 5 is the front view and sectional view of the upper supporting roller key; Figure 6It is the front view and sectional view of the lower holding roller key; Figure 7 It is the front view, top view, and bottom view of the lower holding roller; Figure 8 It is the top view and sectional view of the holding roller limit key; Figure 9 It is the bottom view and sectional view of the holding roller limit ring; Figure 10 It is the top view and sectional view of the upper holding roller; Figure 11 It is the front view of the holding roller seat; Figure 12 It is for Figure 11 the top view and bottom view;

[0041] Figure 13 It is the top view and sectional view of the lower holding roller gland; Figure 14 It is the top view and sectional view of the holding roller bearing spacer; Figure 15 It is the top view and sectional view of the middle holding roller gland; Figure 16 It is the top view and sectional view of the upper holding roller gland; Figure 17 It is the top view and sectional view of the inner holding roller gland; Figure 18 It is the top view and sectional view of the outer holding roller gland.

[0042] The utility model provides a rapid assembly structure for holding rollers of a large horizontal ring rolling machine, which includes a holding roller shaft 1 vertically arranged at the axis center. A lower holding roller 2, a holding roller seat 3, and an upper holding roller 4 are sequentially sleeved on the outside of the holding roller shaft 1 from bottom to top. A lower holding roller gland 5 sleeved on the outside of the holding roller shaft 1 is arranged between the lower holding roller 2 and the holding roller seat 3. The holding roller seat 3 includes a lower holding roller seat 31, an upper holding roller seat 32, and a holding roller seat connecting plate 33 that connects the two holding roller seats into one body on the outside. An upper holding roller 4 sleeved on the outside of the holding roller shaft 1 is arranged between the lower holding roller seat 31 and the upper holding roller seat 32. A holding roller bearing spacer 6 on the inner side and a middle holding roller gland 7 on the outer side, both sleeved on the outside of the holding roller shaft 1, are arranged between the upper holding roller 4 and the lower holding roller seat 31. An inner holding roller bearing spacer 6 and an upper holding roller gland 8 on the outer side, both sleeved on the outside of the holding roller shaft 1, are arranged between the upper holding roller 4 and the upper holding roller seat 32. A holding roller top gland 9 at the top of the upper holding roller seat 32 and located at the top end of the holding roller shaft 1 is arranged.

[0043] The holding roller shaft 1 includes a cylindrical lower holding roller shaft body 101 and an upper holding roller shaft body 102 that are coaxially arranged, and the diameter of the lower holding roller shaft body 101 is greater than that of the upper holding roller shaft body 102. At the bottom end of the lower holding roller shaft body 101, there is a radially annularly concave holding roller shaft annular groove 103, and a holding roller limit key 104 is clamped through the holding roller shaft annular groove 103. In the upper middle part of the lower holding roller shaft body 101, there is a radially outwardly protruding lower shaft body convex ring 105. On the side wall of the lower holding roller shaft body 101 below the lower shaft body convex ring 105, there is a vertically radially concave lower holding roller key installation groove 106, and a plurality of radially concave keyway screw holes 107 are arranged in the lower holding roller key installation groove 106. And a lower holding roller key 108 fixed by bolts is embedded in the lower holding roller key installation groove 106, and a lower holding roller 2 is clamped through the lower holding roller key 108;

[0044] At the top end of the upper holding roller shaft body 102, a diameter-reduced upper shaft body connecting shaft 109 is coaxially arranged. At the center of the top end of the upper shaft body connecting shaft 109, there is a concave center screw hole 110, and a plurality of annularly arranged screw holes 111 are uniformly arranged on the same circumference outside the center screw hole 110. A holding roller pressing cover 9 is arranged through the center screw hole 110 and the plurality of annularly arranged screw holes 111 together; On the side wall of the upper holding roller shaft body 102, there is a vertically arranged upper holding roller key installation groove 112 on the same vertical line as the lower holding roller key installation groove 106, and a plurality of radially concave keyway screw holes 107 are arranged in the upper holding roller key installation groove 112. And an upper holding roller key 113 fixed by bolts is embedded in the upper holding roller key installation groove 112, and an upper holding roller 4 is clamped through the upper holding roller key 113.

[0045] The lower holding roller 2 includes a cylindrical lower holding roller main body 21, and a vertically penetrating and concave lower holding roller key groove 22 is arranged on the inner wall of the lower holding roller main body 21, and the lower holding roller key groove 22 is clamped and fixed with the lower holding roller key 108; At the bottom end of the lower holding roller main body 21, there is an upwardly concave lower holding roller circular groove 23, and a plurality of lower holding roller screw holes 24 are uniformly arranged on the top plane of the lower holding roller circular groove 23 on the same circumference. A holding roller limit ring 25 fixed by bolts is embedded in the lower holding roller circular groove 23; The inner diameter of the holding roller limit ring 25 is equal to the outer diameter of the holding roller limit key 104.

[0046] The holding roller seat 3 includes a lower holding roller seat 31, an upper holding roller seat 32, and a holding roller seat connecting plate 33 that connects the two holding roller seats into one body on the outside;

[0047] The lower roller holder 31 is arranged in a circular ring shape and sleeved above the lower shaft convex ring 105 of the lower shaft body 101 of the roller shaft. A plurality of annularly arranged lower roller holder through holes 311 are uniformly arranged along the axial direction on the same circumference of its annular side wall. A horizontally extending lower roller holder horizontal connecting plate 312 is arranged at the middle of the outer side wall of the lower roller holder 31 and is fixedly connected to the roller holder connecting plate 33. A lower roller pressing cover 5 is arranged below the lower roller holder 31, and a middle roller pressing cover 7 is arranged above it.

[0048] The upper roller holder 32 is arranged in a circular ring shape and sleeved outside the upper shaft connecting shaft 109. A plurality of annularly arranged upper roller holder through holes 321 are uniformly arranged along the axial direction on the same circumference of its annular side wall. A horizontally extending upper roller holder horizontal connecting plate 322 is arranged at the middle of the outer side wall of the upper roller holder 32 and is fixedly connected to the roller holder connecting plate 33. An upper roller pressing cover 8 is arranged below the upper roller holder through hole 321, and a roller top pressing cover 9 is arranged above it.

[0049] At the top of the roller holder connecting plate 33, on the side opposite to the roller shaft 1, a connecting plate folded edge 331 extending horizontally outward is provided, and a plurality of vertical folded edge through holes 332 are arranged on the connecting plate folded edge 331 for assisting in fixing the roller holder connecting plate 33.

[0050] The upper roller 4 is an upper roller main body 41 arranged in a cylindrical shape, and a vertically penetrating and concave upper roller key groove 42 is arranged on its inner wall. The upper roller key groove 42 is clamped with the upper roller key 113.

[0051] The lower roller pressing cover 5 is sleeved outside the lower shaft convex ring 105 and includes a vertically cylindrical lower roller pressing cover sleeve 51. A lower roller pressing cover inner plate 52 extending radially towards the axis is arranged on the inner wall of the lower roller pressing cover sleeve 51, and the lower roller pressing cover inner plate 52 abuts against the side wall of the lower shaft convex ring 105. A lower roller pressing cover outer plate 53 extending radially outward is arranged on the outer side wall of the lower roller pressing cover sleeve 51, and a plurality of lower roller pressing cover through holes 54 corresponding to the lower roller holder through holes 311 one by one are arranged on the same circumference of the lower roller pressing cover outer plate 53, so that the lower roller pressing cover 5 and the lower roller holder 31 can be connected into one body by bolts.

[0052] The roller bearing spacer 6 is arranged in a circular ring shape and sleeved outside the upper shaft body 102 of the roller shaft.

[0053] The structure of the middle holding roll gland 7 is the same as that of the lower holding roll gland 5, including a vertical cylindrical middle holding roll gland sleeve 71. On the inner wall of the middle holding roll gland sleeve 71, there is a middle holding roll gland inner plate 72 extending radially towards the axis, and the middle holding roll gland inner plate 72 abuts against the outer wall of the holding roll bearing spacer 6. On the outer side wall of the middle holding roll gland sleeve 71, there is a middle holding roll gland outer plate 73 extending radially outwards, and on the same circumference of the middle holding roll gland outer plate 73, there are a plurality of middle holding roll gland through holes 74 corresponding one-to-one to the lower holding roll seat through holes 311, so that the middle holding roll gland 7 and the lower holding roll seat 31 can be connected into one body by bolts.

[0054] The structure of the upper holding roll gland 8 is the same as that of the lower holding roll gland 5, including a vertical cylindrical upper holding roll gland sleeve 81. On the inner wall of the upper holding roll gland sleeve 81, there is an upper holding roll gland inner plate 82 extending radially towards the axis, and the upper holding roll gland inner plate 82 abuts against the outer wall of the holding roll bearing spacer 6. On the outer side wall of the upper holding roll gland sleeve 81, there is an upper holding roll gland outer plate 83 extending radially outwards, and on the same circumference of the upper holding roll gland outer plate 83, there are a plurality of upper holding roll gland through holes 84 corresponding one-to-one to the upper holding roll seat through holes 321 of the upper holding roll seat 32, so that the upper holding roll gland 8 and the upper holding roll seat 32 can be connected into one body by bolts.

[0055] The holding roll top gland 9 includes an inner holding roll inner gland 91 and an outer holding roll outer gland 92. The holding roll inner gland 91 includes a disc-shaped inner gland main board 911. At the edge of the inner gland main board 911, there is a vertically downward inner gland pressing edge 912, and the inner diameter of the inner gland pressing edge 912 is equal to the diameter of the upper shaft body connecting shaft 109. On the same circumference of the inner gland main board 911, there are also a plurality of inner gland through holes 913 corresponding one-to-one to the annularly arranged screw holes 111, and the holding roll inner gland 91 can be fixed to the top of the holding roll shaft 1 by bolts; the holding roll outer gland 92 includes an outer gland cover 921 in the shape of a bowl covering the outside of the holding roll inner gland 91, and on the outer side of the vertical side wall of the outer gland cover 921, there is an outer gland flat plate 922 extending radially outwards. On the same circumference of the outer gland flat plate 922, there are a plurality of outer gland through holes 923 corresponding one-to-one to the upper holding roll seat through holes 321 of the upper holding roll seat 32, so that the holding roll outer gland 92 and the upper holding roll seat 32 can be connected into one body by bolts.

[0056] In addition, the material of the holding roll shaft 1 provided by the present utility model and the lower holding roll 2, holding roll seat 3, upper holding roll 4, lower holding roll gland 5, holding roll bearing spacer 6, middle holding roll gland 7, upper holding roll gland 8, and holding roll top gland 9 installed on its outer side all adopt S355NL. Therefore, after the holding roll shaft 1 and the lower holding roll 2, holding roll seat 3, upper holding roll 4, lower holding roll gland 5, holding roll bearing spacer 6, middle holding roll gland 7, upper holding roll gland 8, and holding roll top gland 9 installed on its outer side are replaced, they can all be repaired by welding. As a result, the holding roll shaft provided by the present utility model and its installed accessories can be reused after repair, thus greatly reducing the maintenance cost and avoiding waste of resources.

[0057] The present utility model replaces the traditional integral holding roll with a split-structured holding roll and designs the holding roll into a modular structure. Therefore, when a certain component is damaged, the corresponding component can be quickly replaced without replacing the entire holding roll, thereby greatly reducing the maintenance time and cost. The material of the holding roll shaft and the lower holding roll, holding roll seat, upper holding roll, lower holding roll gland, holding roll bearing spacer, middle holding roll gland, upper holding roll gland, and holding roll top gland installed on its outer side all adopt S355NL. As a result, the holding roll shaft provided by the present utility model and its installed accessories can be reused after repair, thus greatly reducing the maintenance cost and avoiding waste of resources. Compact structure: By sequentially sleeving components such as the lower holding roll, holding roll seat, and upper holding roll on the holding roll shaft, the entire structure is designed compactly, occupying a small space and being convenient for installation and maintenance. And by using the bolt fixation method, the assembly and disassembly of each component are more convenient, improving the production efficiency. High stability: By setting a holding roll limit key, holding roll bearing spacer, holding roll gland, etc., the stability of the structure is enhanced, and the vibration and wear during operation are reduced.

[0058] Although the embodiments of the present utility model have been shown and described, obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, for those of ordinary skill in the art, it can be understood that without departing from the principle and spirit of the present utility model and without making creative efforts, all other embodiments obtained by various changes, modifications, substitutions, and variations of these embodiments belong to the scope of protection of the present utility model.

Claims

1. A large-scale horizontal ring rolling machine roller quick assembly structure, characterized in that: The invention comprises a vertical embracing roller shaft (1) and a lower embracing roller (2), an embracing roller seat (3) and an upper embracing roller (4) are sleeved on the outer side thereof from bottom to top in sequence, a lower embracing roller pressure cover (5) is arranged between the lower embracing roller (2) and the embracing roller seat (3), the embracing roller seat (3) comprises a lower embracing roller seat (31) and an upper embracing roller seat (32) and an embracing roller seat connecting plate (33) for connecting the two embracing roller seats into one body on the outer side, and a lower embracing roller seat (31) and an upper embracing roller seat (32) are provided between the lower embracing roller seat (31) and the upper embracing roller seat (32). An upper embracing roller (4) is arranged between the upper embracing roller (4) and the lower embracing roller seat (31); an inner annular embracing roller bearing spacer (6) and an outer middle embracing roller pressure cover (7) are arranged between the upper embracing roller (4) and the upper embracing roller seat (32); an inner annular embracing roller bearing spacer (6) and an outer upper embracing roller pressure cover (8) are arranged between the upper embracing roller (4) and the upper embracing roller seat (32); and an embracing roller top pressure cover (9) is arranged at the top of the upper embracing roller seat (32) and the top end of the embracing roller shaft (1).

2. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 1 is characterized in that: The roller holding shaft (1) comprises a coaxial lower large-diameter roller holding shaft lower shaft body (101) and an upper small-diameter roller holding shaft upper shaft body (102); a radial annular concave roller holding shaft annular groove (103) is provided at the bottom end of the roller holding shaft lower shaft body (101) and a roller holding limit key (104) is clamped thereon; a lower shaft body convex ring (105) protruding radially outward is provided at the middle upper part of the roller holding shaft lower shaft body (101); A vertical radially inwardly concave lower holding roller key installation groove (106) is provided on the side wall of the lower shaft body (101) of the holding roller shaft below the lower shaft body convex ring (105), and a plurality of radially inwardly concave keyway screw holes (107) are provided therein; a lower holding roller key (108) fixed by bolts is embedded in the lower holding roller key installation groove (106), and a lower holding roller (2) is clamped and installed by the lower holding roller key (108); An upper shaft connecting shaft (109) with a reduced diameter is coaxially arranged at the top end of the upper shaft body (102) of the embracing roller shaft, and an inwardly concave axial screw hole (110) is arranged at the axial center of the top end thereof; a plurality of annularly arranged screw holes (111) are evenly arranged on the same circumference outside the axial screw hole (110); a embracing roller top pressure cover (9) is arranged through the axial screw hole (110) and the plurality of annularly arranged screw holes (111); an upper embracing roller key installation groove (112) is vertically arranged on the side wall of the upper shaft body (102) of the embracing roller shaft on the same vertical line as the lower embracing roller key installation groove (106), and a plurality of radially inwardly concave keyway screw holes (107) are arranged therein; an upper embracing roller key (113) fixed by bolts is embedded in the upper embracing roller key installation groove (112), and an upper embracing roller (4) is clamped and arranged through the upper embracing roller key (113).

3. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 2 is characterized in that: The lower embracing roller (2) comprises a cylindrical lower embracing roller body (21) and a lower embracing roller keyway (22) is arranged on the inner wall thereof and is vertically penetrated and concave and is clamped and fixed with the lower embracing roller key (108); a lower embracing roller circular groove (23) which is concave upward is arranged at the bottom end of the lower embracing roller body (21); a plurality of lower embracing roller screw holes (24) are evenly arranged on the same circumference on the top plane of the lower embracing roller circular groove (23); and a embracing roller limiting ring (25) fixed by bolts is embedded in the lower embracing roller circular groove (23); the inner diameter of the embracing roller limiting ring (25) is equal to the outer diameter of the embracing roller limiting key (104).

4. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 3 is characterized in that: The lower embracing roller seat (31) is arranged in an annular shape and is sleeved on the upper part of the lower shaft body convex ring (105) of the lower shaft body (101) of the embracing roller shaft. A plurality of annularly arranged lower embracing roller seat through holes (311) are evenly arranged along the axial direction on the same circumference of the annular side wall of the lower embracing roller seat (31). A lower embracing roller seat horizontal connecting plate (312) is arranged in the middle of the outer side wall of the lower embracing roller seat (31) and is horizontally extended to the embracing roller seat connecting plate (33) for connection and fixing. A lower embracing roller pressure cover (5) is arranged below the lower embracing roller seat (31) and a middle embracing roller pressure cover (7) is arranged above the upper embracing roller seat (32). The upper embracing roller seat (32) is arranged in an annular shape and is sleeved on the outer side of the upper shaft body connecting shaft (109). A plurality of annularly arranged upper roller seat through holes (321) are evenly arranged along the axial direction on the same circumference of the annular side wall of the upper roller seat (32); a horizontal upper roller seat connecting plate (322) extending horizontally and connected and fixed to the roller seat connecting plate (33) is arranged in the middle of the outer side wall of the upper roller seat (32); an upper roller pressure cover (8) is arranged below the upper roller seat through hole (321) and an upper roller top pressure cover (9) is arranged above the upper roller seat through hole (321); a connecting plate folding edge (331) extending horizontally outward is arranged at the top end of the roller seat connecting plate (33) on the side opposite to the roller shaft (1), and a plurality of vertical folding edge through holes (332) are arranged on the connecting plate folding edge (331).

5. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 4 is characterized in that: The upper holding roller (4) is a cylindrical upper holding roller body (41), and a vertically penetrating and inwardly concave upper holding roller keyway (42) is provided on the inner wall thereof. The upper holding roller keyway (42) is clamped with the upper holding roller key (113).

6. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 5 is characterized in that: The lower holding roller pressure cover (5) comprises a cylindrical lower holding roller pressure cover sleeve (51), the inner wall of the lower holding roller pressure cover sleeve (51) is provided with a lower holding roller pressure cover inner plate (52) extending radially toward the axis center and resting against the side wall of the lower shaft body convex ring (105), the outer wall of the lower holding roller pressure cover sleeve (51) is provided with a lower holding roller pressure cover outer plate (53) extending radially outward, and a plurality of lower holding roller pressure cover through holes (54) corresponding to the lower holding roller seat through holes (311) are provided on the same circumference thereof.

7. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 6 is characterized in that: The structure of the middle roll pressure cover (7) is the same as that of the lower roll pressure cover (5), including a vertical cylindrical middle roll pressure cover sleeve (71), an inner wall of the middle roll pressure cover sleeve (71) is provided with a middle roll pressure cover inner plate (72) extending radially toward the axis and resting against the outer wall of the roll bearing spacer (6), an outer wall of the middle roll pressure cover sleeve (71) is provided with a middle roll pressure cover outer plate (73) extending radially outward, and a plurality of middle roll pressure cover through holes (74) corresponding to the lower roll seat through holes (311) are provided on the same circumference of the middle roll pressure cover outer plate (73).

8. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 7 is characterized in that: The structure of the upper holding roller pressure cover (8) is the same as that of the lower holding roller pressure cover (5), comprising a vertical cylindrical upper holding roller pressure cover sleeve (81), an upper holding roller pressure cover inner plate (82) extending radially toward the axis and resting against the outer wall of the holding roller bearing spacer (6) is arranged on the inner wall of the upper holding roller pressure cover sleeve (81), an upper holding roller pressure cover outer plate (83) extending radially outward is arranged on the outer wall of the upper holding roller pressure cover sleeve (81), and a plurality of upper holding roller pressure cover through holes (84) corresponding to the upper holding roller seat through holes (321) of the upper holding roller seat (32) are arranged on the same circumference of the upper holding roller pressure cover outer plate (83).

9. The large-scale horizontal ring rolling machine roller quick assembly structure according to claim 8 is characterized in that: The roller holding top pressure cover (9) comprises an inner roller holding inner pressure cover (91) and an outer roller holding outer pressure cover (92), the roller holding inner pressure cover (91) comprises a disc-shaped inner pressure cover main board (911), an inner pressure plate folding edge (912) vertically downward is provided at the edge of the inner pressure cover main board (911), the inner diameter of the inner pressure plate folding edge (912) is equal to the diameter of the upper shaft body connecting shaft (109), and a plurality of screw holes arranged in an annular manner are provided on the same circumference of the inner pressure cover main board (911). (111) one-to-one corresponding inner pressure plate through holes (913); the outer pressure cover (92) of the holding roller includes an outer pressure cover (921) with a bowl shape arranged on the outer side of the inner pressure cover (91) of the holding roller, an outer pressure cover flat plate (922) extending radially outward is arranged on the outer side of the vertical side wall of the outer pressure cover (921), and a plurality of outer pressure cover through holes (923) corresponding to the upper holding roller seat through holes (321) of the upper holding roller seat (32) are arranged on the same circumference of the outer pressure cover flat plate (922).

10. The large-scale horizontal ring rolling machine roller quick assembly structure according to any one of claims 1 to 9, characterized in that: The material of the roller holding shaft (1) and the lower roller (2), roller holding seat (3), upper roller (4), lower roller pressure cover (5), roller bearing spacer (6), middle roller pressure cover (7), upper roller pressure cover (8) and roller top pressure cover (9) installed on the outer side thereof are all S355NL.

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