CN207971207U - Mill intermediate calender rolls system axial direction positioning device - Google Patents

Abstract

The utility model provides an axial positioning device for the middle roll system of a 20-high rolling mill, which comprises a frame, a drive side roll shifting cylinder, an operation side roll shifting cylinder, a front door, a rear door, a roll system and a thrust bearing device, and the roll system includes The working rolls and the intermediate roll system, the front door and the rear door are respectively installed on both sides of the frame, the operation side shifting roll cylinder is installed on the outside of the front door, the transmission side shifting roll cylinder is installed on the outside of the rear door, and the two ends of the middle roll system are equipped with Thrust bearing device, wherein the thrust bearing device at one end is connected to the operation side roller shifting cylinder, and the thrust bearing device at the other end is connected to the transmission side roller shifting cylinder. The axial positioning device for the intermediate roll system of the twenty-high rolling mill described in the utility model has the following advantages: the intermediate roll system is convenient for direct grinding without dismantling the roll system, the structure of the roll system is simplified, the bearing force is more effective, and the use of larger The direction of the force bears the load, which enhances the service life of the bearing.

Description

Axial positioning device for middle roll system of twenty-high rolling mill

technical field

The utility model belongs to the field of metallurgical steel rolling machinery equipment, in particular to an axial positioning device for an intermediate roll system of a 20-high rolling mill.

Background technique

The production level of steel is an important symbol to measure the modernization level of a country. my country's iron and steel has developed rapidly. Cold-rolled strip steel has always occupied an important proportion of steel production. It is widely used in civil, industrial, construction, subway and other fields, showing excellent mechanical properties. With the rapid development of the economy, the demand for product output is increasing day by day, the product quality is more high-precision, and the requirements for production equipment are higher. It is very necessary to improve the equipment performance and production efficiency. Therefore, it is necessary to strengthen the structural function of the rolling mill and save operating time and disassembly of the roll system. time.

There are three types of twenty-high cold rolling mills currently in use: Sendzimir integral arch type, Sendewei four-column type and Froling traditional rack type. It is used to roll high-performance materials such as carbon steel, stainless steel, and hard alloy, and is used to roll thin strips or extremely thin strips. These twenty-high rolling mills are composed of a vertically symmetrical middle roll system and two middle roll systems, and the two middle rolls are divided into two middle driving rolls and two middle idler rolls. For a roll system with push-push structure roll shifting in the middle, there are bearings and bearing seats at both ends of the middle roll to achieve axial positioning, and frictionally contact with the thrust block on the head of the roll shifting cylinder. For the two intermediate driving rollers, the driving side is connected with the shaft coupling, and one end of the operating side has a bearing and a bearing seat to achieve axial positioning, and is in frictional contact with the thrust block on the front door. For the two intermediate idler roller systems, there are bearings and bearing seats at both ends to achieve axial positioning, and are in frictional contact with the thrust block on the head of the roll shifting cylinder. The centerlines of all bearings of the roll system coincide with the centerlines of the first and second intermediate rolls, are on the same center line, and are connected to the ends of the rolls to form an independent roll system.

The utility model breaks the conventional mechanism, changes the existing bearing and bearing seat to be fixed on the roll, and puts the bearing and bearing seat on the front and rear doors and the friction block of the roll shifting hydraulic cylinder on the front and rear doors, and the center line of the roll and the center line of the bearing In a vertical state, the end of the roll and the outer ring of the bearing are in a state of rolling friction. In this case, the first and second intermediate rolls are in a bare roll state like the work rolls, which is convenient for direct grinding without dismantling the roll system, and simplifies the structure of the roll system. In addition, from the point of view of the bearing force, the bearing is loaded in a larger force direction, which increases the service life of the bearing.

Contents of the invention

In view of this, the utility model aims to propose an axial positioning device for the intermediate roll system of a twenty-high rolling mill, which can solve the above-mentioned technical problems.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

An axial positioning device for the middle roll system of a twenty-high rolling mill, including a frame, a drive side shifting cylinder, an operating side shifting cylinder, a front door, a rear door, a roll system and a thrust bearing device, and the roll system includes a working roll and an intermediate roll The front door and the rear door are respectively installed on both sides of the frame, the operation side roll shifting cylinder is installed on the outside of the front door, the transmission side roll shifting cylinder is installed on the outside of the rear door, and thrust bearing devices are installed at both ends of the middle roll system. The thrust bearing device at one end is connected to the operation side shifting cylinder, and the thrust bearing device at the other end is connected to the transmission side roller shifting cylinder.

The intermediate roll system includes the first layer of intermediate rolls, the second layer of intermediate idler rolls, the second layer of intermediate drive rolls, the second layer of intermediate idler rolls and the second layer of intermediate drive rolls are arranged on the outer layer of the first layer of intermediate rolls, and the working rolls In the innermost layer, the thrust bearing device includes the first layer intermediate thrust bearing device, the second layer intermediate thrust bearing device, the work roll thrust bearing device and the drive side two intermediate idler roller thrust bearing devices, the first layer middle The first layer of intermediate thrust bearing device is installed at both ends of the roller, and the second layer of intermediate thrust bearing device is installed on the operation side of the second layer of intermediate idler roller and the operation side of the second layer of intermediate drive roller. The drive side is equipped with two intermediate idler roller thrust bearing devices on the drive side, and the two ends of the work roll are equipped with work roll thrust bearing devices.

Further, the second-layer intermediate thrust bearing device includes a first bearing seat, a pin shaft, a roller bearing, a spacer and a baffle, the first bearing seat is fixed on the front door, and the two roller bearings are fixed through the pin shaft on the second On the first bearing seat, the two roller bearings are in rolling contact with the end of the second-layer intermediate drive roller and the end of the second-layer intermediate idler roller respectively, and the centerline of the second-layer intermediate drive roller and the centerline of the second-layer intermediate idler roller Both are perpendicular to the centerline of the roller bearings, and a spacer is provided between the two roller bearings.

Further, a slot is provided at the bottom of the pin, and a baffle is inserted into the slot, and the baffle is clamped at the lower end of the first bearing seat to limit the position of the pin.

Further, the thrust bearing device of the two intermediate idle rollers on the transmission side includes a roller bearing, a first mandrel, a nut and a second bearing seat, the second bearing seat is fixed on the rear door, and a roller bearing is fixed by the first mandrel and the nut On the second bearing seat, the roller bearing is in rolling contact with the transmission side end of the second layer of intermediate idler roller, and the centerline of the second layer of intermediate idler roller is perpendicular to the centerline of the roller bearing.

Further, the first-layer intermediate thrust bearing device includes a roller bearing, a second mandrel, a bolt and a third bearing seat, and thrust blocks are fixed at the ends of the cylinder rods of the drive side roll shifting cylinder and the operating side roll shifting cylinder, The third bearing seat is fixed on the thrust block, and the two roller bearings run through the second mandrel. The upper and lower ends of the second mandrel are fixed on the third bearing seat by bolts. The center line of the bearing is in a vertical state, and the ends of the two first-layer intermediate rollers are in rolling contact with the outer rings of the two roller bearings respectively.

Further, the center line of the bolt is perpendicular to the center line of the second mandrel.

Further, the outer layer of the intermediate roll system is provided with a layer of backing rolls.

Further, the roll system includes two sets of symmetrically arranged upper and lower roller system units, and each roll system unit includes four backing rollers, two second-layer intermediate drive rollers, a second-layer intermediate idler roller, two first-layer Intermediate rolls and one working roll, four backing rolls on the outermost layer, working rolls on the innermost layer, two first layer intermediate rolls in direct contact with the work rolls, second layer intermediate idler rolls on the two first layer intermediate rolls between.

Compared with the prior art, the axial positioning device for the intermediate roll system of the twenty-high rolling mill of the utility model has the following advantages: the intermediate roll system is convenient for direct grinding without dismantling the roll system, the structure of the roll system is simplified, and the bearing is stressed. It is more effective, and bears the load with a larger force direction, which enhances the service life of the bearing.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the structural representation that the utility model is applied on the rolling mill;

Fig. 2 is a schematic diagram of the right view structure of the front door in Fig. 1;

Fig. 3 is a left view structural schematic diagram of the rear door in Fig. 1;

Figure 4 is a schematic diagram of the arrangement of the roller system (the same letters indicate the same components);

Fig. 5 is a sectional view of plane A-A in Fig. 2;

Fig. 6 is a cross-sectional view of B-B plane in Fig. 2;

Fig. 7 is a sectional view of plane C-C in Fig. 3;

Explanation of reference signs:

1-drive side roll shifting cylinder; 2-back door; 3-second middle idler roller; 4-first middle middle roll; 5-work roll; 6-frame; 7-front door; 8-operation side roll shifting ;9-the first layer intermediate thrust bearing device; 10-the second layer intermediate thrust bearing device; 11-the work roll thrust bearing device; 12-the drive side two intermediate idler roller thrust bearing device; 13-backing roller ;14-the second intermediate drive roller; 15-pin shaft; 16-roller bearing; 17-spacer; 18-first bearing seat; 19-baffle plate; The third bearing seat; 23-thrust block; 24-nut; 25-the first mandrel; 26-the second bearing seat.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention through specific situations.

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figure 1-7, an axial positioning device for the intermediate roll system of a twenty-high rolling mill includes a frame 6, a drive side roll shifting cylinder 1, an operating side roll shifting cylinder 8, a front door 7, a rear door 2, a roll system and Thrust bearing device, the roll system is installed on the bearing housing, the roll system includes the work roll 5 and the intermediate roll system, the front door 7 and the rear door 2 are respectively installed on both sides of the frame 6, and the outer side of the front door 7 is installed to operate the side shifting roll Cylinder 8, the drive side shifting roller cylinder 1 is installed on the outside of the rear door 2, and the two ends of the middle roller system are equipped with thrust bearing devices, and the thrust bearing device at one end is connected to the operating side shifting roller cylinder 8, and the thrust bearing The device is connected to the drive side shifting roller cylinder 1.

The intermediate roll system includes the first intermediate roll 4, the second intermediate idler roll 3, and the second intermediate drive roll 14, the second intermediate idler roll 3 and the second intermediate drive roll 14 are arranged on the first intermediate roll 4 The outer layer, the work roll 5 is in the innermost layer, and the thrust bearing device includes the first layer intermediate thrust bearing device 9, the second layer intermediate thrust bearing device 10, the work roll thrust bearing device 11 and the transmission side two intermediate idlers Roller thrust bearing device 12, the first layer of intermediate thrust bearing device 9 is arranged at both ends of the first layer of intermediate roller 4, the operating side of the second layer of intermediate idler roller 3, and the operating side of the second layer of intermediate driving roller 14 are provided with the second layer Two layers of intermediate thrust bearing devices 10, the drive side of the second layer of intermediate idler rollers 3 is provided with two intermediate idler roller thrust bearing devices 12 on the drive side, and the two ends of the work rolls 5 are provided with work roll thrust bearing devices 11.

The second layer of intermediate thrust bearing device 10 includes a first bearing seat, a pin shaft, a roller bearing, a spacer and a baffle plate, the first bearing seat 18 can be fixed on the front door 7 by bolts, and the two roller bearings 16 are fixed by pins. The shaft 15 is penetrated and fixed on the first bearing housing 18, and the two roller bearings 16 are respectively in rolling contact with the end of the second-layer intermediate drive roller 14 and the end of the second-layer intermediate idler roller 3, and the center of the second-layer intermediate drive roller 14 The centerlines of the line and the second layer of intermediate idler rollers 3 are perpendicular to the centerlines of the roller bearings 16, and a spacer 17 is provided between the two roller bearings 16.

The bottom of the pin shaft 15 is provided with a slot, and a baffle plate 19 is inserted in the slot, and the baffle plate 19 is stuck on the lower end of the first bearing seat 18 to limit the position of the pin shaft 15 .

The two intermediate idler roller thrust bearing devices 12 on the transmission side include a roller bearing 16, a first mandrel 25, a nut 24 and a second bearing seat 26, and the second bearing seat 26 can be fixed on the rear door 2 by bolts, and a roller bearing 16 is fixed on the second bearing seat 26 through the first mandrel 25 and the nut 24, the roller bearing 16 is in rolling contact with the transmission side end of the second layer of intermediate idler roller 3, and the center line of the second layer of intermediate idler roller 3 is in contact with the roller Bearing 16 center line is vertical state.

The first-layer intermediate thrust bearing device 9 includes a roller bearing 16, a second mandrel 21, a bolt 20 and a third bearing seat 22, and the ends of the cylinder rods of the drive side roll shifting cylinder 1 and the operating side roll shifting cylinder 8 are both The thrust block 23 is fixed, the third bearing seat 22 is fixed on the thrust block 23, the two roller bearings 16 run through the second mandrel 21, and the upper and lower ends of the second mandrel 21 are fixed on the third bearing seat by bolts 20 22 , the centerline of the first layer of intermediate rollers 4 is perpendicular to the centerline of the roller bearings 16, and the ends of the two first layer of intermediate rollers 4 are in rolling contact with the outer rings of the two roller bearings 16 respectively.

The center line of the bolt 20 is perpendicular to the center line of the second mandrel 21 .

The outer layer of the intermediate roll system is provided with a layer of backing roll 13 .

The roller system includes two sets of roller system units arranged symmetrically up and down, and each roller system unit includes four backing rollers 13, two second-layer intermediate drive rollers 14, a second-layer intermediate idler roller 3, two first Layer intermediate roll 4 and one work roll 5, four backing rolls 13 are located in the outermost layer, work roll 5 is located in the innermost layer, two first layer intermediate rolls 4 directly contact the work roll 5, the second layer intermediate idler roll 3 Located between two first layer intermediate rolls 4.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. An axial positioning device for the intermediate roll system of a twenty-high rolling mill, characterized in that it includes a frame (6), a drive side roll shifting cylinder (1), an operating side roll shifting cylinder (8), a front door (7), Back door (2), roll system and thrust bearing device, the roll system includes working rolls (5) and intermediate roll system, the front door (7) and the back door (2) are installed on both sides of the frame (6) respectively, the front door The outer side of (7) is installed with the operation side roll shifting cylinder (8), and the outer side of the rear door (2) is installed with the transmission side roll shifting cylinder (1). The bearing device is connected to the roller shifting cylinder (8) on the operation side, and the thrust bearing device at the other end is connected to the roller shifting cylinder (1) on the transmission side; The intermediate roll system comprises a first layer of intermediate rolls (4), a second layer of intermediate idler rolls (3), a second layer of intermediate drive rolls (14), a second layer of intermediate idler rolls (3) and a second layer of intermediate drive rolls ( 14) Set on the outer layer of the first intermediate roll (4), the work roll (5) is on the innermost layer, and the thrust bearing device includes the first intermediate thrust bearing device (9), the second intermediate thrust bearing device (10), the work roll thrust bearing device (11) and the two intermediate idler roller thrust bearing devices (12) on the drive side, and the first layer intermediate thrust bearing device ( 9), the operation side of the second layer intermediate idler roller (3) and the operation side of the second layer intermediate drive roller (14) are provided with the second layer intermediate thrust bearing device (10), and the second layer intermediate idler roller (3) Two intermediate idler roller thrust bearing devices (12) on the transmission side are set on the transmission side of the drive side, and the two ends of the work roll (5) are provided with a work roller thrust bearing device (11). 2. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 1, characterized in that: the second-layer intermediate thrust bearing device (10) includes a first bearing seat, a pin shaft, a roller bearing, The spacer and baffle, the first bearing seat (18) is fixed on the front door (7), the two roller bearings (16) are fixed on the first bearing seat (18) through the pin shaft (15), the two roller bearings (16) Rolling contact with the end of the second layer of intermediate drive roller (14) and the end of the second layer of intermediate idler roller (3) respectively, the center line of the second layer of intermediate drive roller (14) and the second layer of intermediate idler roller The centerlines of (3) are all perpendicular to the centerline of the roller bearings (16), and spacer sleeves (17) are provided between the two roller bearings (16). 3. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 2, characterized in that: a slot is provided at the bottom of the pin shaft (15), and a baffle (19) is inserted into the slot, and the baffle (19) is stuck in the first bearing seat (18) lower end to pin shaft (15) limit. 4. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 1, characterized in that: the thrust bearing device (12) of the two intermediate idler rolls on the transmission side includes a roller bearing (16), a first core Axle (25), nut (24) and the second bearing seat (26), the second bearing seat (26) is fixed on the rear door (2), and a roller bearing (16) passes through the first mandrel (25) and the nut ( 24) Fixed on the second bearing seat (26), the roller bearing (16) is in rolling contact with the transmission side end of the second layer intermediate idler roller (3), and the center line of the second layer intermediate idler roller (3) is in contact with the roller Bearing (16) center line is vertical state. 5. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 1, characterized in that: the first layer intermediate thrust bearing device (9) includes a roller bearing (16), a second mandrel ( 21), bolts (20) and the third bearing seat (22), the ends of the cylinder rods of the transmission side roller shifting cylinder (1) and the operating side roller shifting cylinder (8) are fixed with thrust blocks (23), the third bearing The seat (22) is fixed on the thrust block (23), and the two roller bearings (16) run through the second mandrel (21), and the upper and lower ends of the second mandrel (21) are fixed on the second mandrel (20) by bolts (20). On the three bearing housings (22), the center line of the first layer of intermediate rollers (4) is perpendicular to the center line of the roller bearings (16), and the ends of the two first layer of intermediate rollers (4) are respectively aligned with the two roller bearings. The outer ring of (16) is in rolling contact. 6. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 5, characterized in that: the axis line of the bolt (20) and the center line of the second mandrel (21) are perpendicular to each other. 7. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 1, characterized in that: the outer layer of the intermediate roll system is provided with a layer of backing rolls (13). 8. The axial positioning device for the intermediate roll system of a twenty-high rolling mill according to claim 1, wherein the roll system includes two sets of symmetrically arranged upper and lower roller system units, and each roller system unit includes four backing rollers (13), two second-layer intermediate drive rolls (14), one second-layer intermediate idler roll (3), two first-layer intermediate rolls (4) and one work roll (5), four backing rolls (13) is located in the outermost layer, the work roll (5) is located in the innermost layer, the two first layer intermediate rolls (4) directly contact the work roll (5), the second layer intermediate idler roll (3) layer between intermediate rolls (4).