JPH042322B2 - - Google Patents

Description

[Detailed Description of the Invention] <Object of the Invention> Industrial Application Field The present invention relates to a width-adjusting rolling roll, and in detail:
It is used for rolling steel materials such as H-beam steel, and automatically changes the rolling width online while being incorporated into the rolled material.
It relates to an adjustable width rolling roll.

BACKGROUND ART Conventionally, a universal rolling mill in which horizontal rollers and vertical rollers are assembled in the same stand has been used for rolling H-section steel. That is, as shown in FIG.
a, 1a, and the horizontal roller 3 rolls the upper and lower webs 1b, 1b of the H-section steel 1 and the inner surfaces of both flanges. Note that the reference numeral 23 indicates a chock.

However, as shown in Fig. 5, the vertical roller 2 has a barrel length with ample margin for the flange width, so it can be used for rolling different sizes of flange widths, whereas the horizontal roller 2 3 is an integrated product with both ends pivotally supported, so it is not possible to roll H-beams with different sizes of web lengths.

Furthermore, since the horizontal roller 3 rolls down the inner surface of the flange with its end face, the end face wears more severely than the barrel part, and even when rolling the same size, as the amount of rolling increases, the web length becomes insufficient and dimensional accuracy deteriorates. As a result, the rollers had to be replaced frequently.

To solve this problem, a shim-adjustable horizontal roller as shown in FIG. 6 has recently been proposed.
This is achieved by fitting a sleeve roller 5 onto an arbor 4 whose both ends are pivoted by jocks 23, and by incorporating adjusting plates 7, 8 and 9 between these sleeve rollers 5, the length of the roll barrel can be adjusted. It is possible.

However, shim-adjustable horizontal rollers have the following problems: (1) The adjustment plate cannot be replaced on the rolling line, (2) Adjustment requires a long time, reducing production efficiency, and (3) Fine adjustment is difficult. It was not practical due to problems such as:

Problems to be Solved by the Invention The present invention aims to solve the problems of the prior art as described above. Specifically, the present invention aims to solve the problems of the prior art as described above. We propose a width-adjustable rolling roller that can adjust the width and roll H-section steel of different sizes without changing rolls.

<Structure of the Invention> Means for Solving the Problems and Their Effects In other words, the roll according to the present invention includes a pair of sleeve rollers that approach or separate from each other.
an adjustment rod protruding from the opposing surface of one sleeve roller along its central axis, and a sheath-like body with which the adjustment rod is aligned protruding from the opposing surface of the other sleeve roller along its central axis; An engagement device is provided for engaging the opposing surfaces of both sleeve rollers with each other, and an adjustment drive shaft is passed through the adjustment rod and the sheath along a common axis, and the adjustment drive shaft is connected to the adjustment rod and the sheath. It is characterized in that it meshes with the sheath-like body in a left-right symmetrical reverse screw relationship, and further includes a rotational drive source that rotationally drives the adjustment drive shaft.

Therefore, the structure of this means and its operation will be explained in more detail with reference to FIGS. 1 and 2 as follows.

First, FIG. 1 is a cross-sectional view of a width adjusting horizontal roller according to one embodiment of the present invention, and the width of this roller can be adjusted online, and moreover, the width is adjusted via a driving motor and a floating shaft (not shown). Rotationally driven.

This width adjusting horizontal roller is a combination of a pair of sleeve rollers 11 and 20 facing each other. Among these sleeve rollers, an adjustment rod 112 is integrally protruded along approximately the central axis of one of the sleeve rollers, for example, the sleeve roller 11, and approximately the central axis of the other sleeve roller, for example, the sleeve roller 20. A sheath 202 is protruded along the sheath 202, and the adjustment rod 112 is aligned within the sheath 202. Therefore, each sleeve roller 11, 20
can slide relative to each other along the central axis, and the distance between the pair of sleeve rollers 11 and 20, that is,
Width can be adjusted.

Furthermore, an engaging device is provided to engage and integrate the opposing surfaces 11a and 20a of the pair of sleeve rollers 11 and 20. This engagement device can be configured as a normal locking device if the opposing surfaces can be detachably integrated, but usually, each opposing surface 11a, 20a has an engagement recess 12 as shown in FIG. The engaging protrusion 21 is provided in the engaging recess 12.
For example, rotational torque from a drive motor (not shown) connected to the end of one sleeve roller 11 is transmitted to the other sleeve roller 20 in synchronization with the sleeve roller 11. The other sleeve rollers 20 rotate.

Next, an adjustment mechanism is provided in order to move these sleeve rollers 11 and 20 closer together or apart when adjusting the width.
The adjustment drive shaft 30 is engaged with the sheath-like body 202 along its central axis. That is, the adjustment drive shaft 3
For example, a left-handed threaded portion 35 is provided at the tip of the 0, and a right-handed threaded portion 34 is provided at the middle portion in a reverse thread relationship, and the threaded portions 112a and 202a that mesh with these threaded portions 35 and 34 are adjusted. Rod 11
2 and the tip of the sheath-like body 202, so that the threaded portion 35 and the threaded portion 112a, and the threaded portion 34 and the threaded portion 202a are engaged with each other. With this configuration, the sleeve rollers 11 and 20 can be moved in the axial direction by rotation of the adjustment drive shaft 30. Further, one end of the adjustment drive shaft 30 is connected to a screw drive actuator 33 via a coupling 31 and a clutch 32. In this, the sheath-like body 202 is fixed to a part of the clutch 32 and the actuator 24, and is rotatably supported by a chock 23 via a bearing 22, while an end of the case 24 is attached to one side of the chock 23. The parts are fixed and connected.

Therefore, when the sleeve rollers 11 and 20 move in the axial direction (when changing the rolling width), they are connected to the actuator 33 by the clutch 32, and the adjustment drive shaft 3
0 is driven. Further, when rolling the H-section steel 10, the adjusting drive shaft 30 and the actuator 33 are separated by the clutch 32, and the drive motor connected to the shaft end of one sleeve roller 11 moves the adjustment drive shaft 30 and the actuator 33 together. The local sleeve roller 20 is rotationally driven. At this time, the other sleeve roller 20 is connected to the engagement recess 12 and the engagement protrusion 2.
Since it is connected to one sleeve roller 11 by an engagement mechanism consisting of 1, torque is transmitted;
Both sleeve rollers 11 and 20 move to the bearing 2 at the same speed.
2 Rotate on top. In addition, at this time, the adjustment drive shaft 30
The sleeve rollers 11 and 20 are engaged with each other by a screw pair at the shaft end, and are separated from the actuator 33 by a clutch 32, so that they are assembled in the case 24 together with the sleeve rollers 11 and 20. It is rotatably supported by a bearing 25.

Therefore, the manner of adjusting the rolling width of the width-adjusting roll having the above configuration will be explained in more detail as follows.

First, the rotation of the sleeve rollers 11 and 20 is stopped, and the clutch 32 is operated to connect the actuator 33 and the adjustment drive shaft 30. Adjustment drive shaft 3
0 has a right-handed threaded portion 34 and a left-handed threaded portion 35.
are provided in a left-right symmetrical reverse screw relationship, and the threaded portion 35 engages with the threaded portion 112a of the adjustment rod 112 of one sleeve roller 11,
The threaded portion 34 is engaged with the threaded portion 202a of the sheath-like body 202 of the other sleeve roller 20. When the adjustment drive shaft 30 is rotated by the actuator 33, the adjustment drive shaft 30 is connected to the chock 23 through the case 24 and has a degree of freedom only in rotational movement and does not move in the axial direction. Threaded part 3
Both sleeve rollers 11 and 20 are moved toward or away from each other by the same amount by the axial moving force transmitted from rollers 4 and 35, thereby making it possible to change and adjust the rolling width. At this time, one sleeve roller 11
The driving side shaft of the sleeve roller 20 slides in the axial direction between the outer periphery of the shaft and the inner race of the bearing 22, and the other end slides in the axial direction between the outer periphery of the shaft and the inner periphery of the other sleeve roller 20.
The sliding surfaces of the other sleeve roller 20 are the outer periphery of the other sleeve roller 20, the inner race of the bearing 22, the outer periphery of the non-drive side shaft of the one sleeve roller 11, and the inner periphery of the other sleeve roller 20.

Further, the present invention can be configured as shown in FIG. 2 in addition to being configured as shown in FIG. 1. When configured as shown in FIG. Sleeve rollers 11, 2
0 can be moved in the axial direction to change the rolling width.

That is, like the roller shown in FIG. 1, the roller shown in FIG.
20 is moved in the axial direction and in the opposite direction by the same amount to adjust the rolling width. However, in the roller shown in FIG. 2, the outer box 48, the drive actuator 49 of the adjustment drive shaft, and the rotary joint 50 are sequentially connected to the shaft end of the rotary drive shaft 30, and one end of these is fixed to the chock 23. The outer box 4 is not connected to the case 51
8. Actuator 49 for screw drive parts
In addition, the rotary joint 50 rotates via the adjustment drive shaft 30 in synchronization with the pair of sleeve rollers 11 and 20.

To explain in more detail, first, the adjustment drive shaft 30
The free end of the actuator 49 is connected to the actuator 49 via the outer box 48.
Meanwhile, a connecting rod 53 is passed through a through hole 30a formed along the central axis of the adjustment drive shaft 30, and an output shaft 52 of the actuator 49 is connected to one end of the connecting rod 53. The connecting rod 53 is the adjustment drive shaft 3
0, has degrees of freedom in the rotational direction and axial direction,
The other end of the connecting rod 53 is removably engaged with the adjustment rod 112 of one sleeve roller 11, and is movable in the axial direction with respect to the adjustment rod 112, making it removable but not free in the direction of rotation. It rotates in synchronization with one sleeve roller 11.

With this configuration, now actuator 4
When the actuator 9 is driven, the output shaft 52 is prevented from rotating by one sleeve roller 11 via the connecting rod 53, so the actuator 49 rotates.
Furthermore, the adjustment drive shaft 30 rotates via the outer box 48 connected to the actuator 49 main body. At this time, even though both sleeve rollers 11 and 20 are rotating, the output shaft 52 of the actuator 49 is rotating in the same direction at the same speed as both sleeve rollers 11 and 20 via the connecting rod 53. , the actuator 49, the outer box 48, and the adjustment drive shaft 30 have a speed difference relative to both sleeve rollers 11, 20, and the threaded portion 3 at the end of the adjustment drive shaft 30
Both sleeve rollers 11 and 2 that mesh with 5 and 34
The threaded portion at the 0-axis end moves in the axial direction at the same speed but in the opposite direction.

In this case, the actuator 49 can use any rotational drive source such as a hydraulic motor or an electric motor, and power, hydraulic oil, etc. are supplied to the actuator via the rotary joint 50.

As is clear from the above explanation, with the width adjusting rolling roller according to the present invention, the rolling width of the roller can be changed automatically and quickly while it is installed in a rolled material stand, and one type of roller can be used. It is possible to roll H-beams of different sizes with different web lengths. In addition, in response to wear on the side of the roller that rolls the inner surface of the flange, by changing and adjusting the rolling width of the roller according to the amount of wear, there is no need to replace or modify the roller, improving roll consumption and rolling efficiency. etc. can be greatly improved.

In addition, it is necessary to prevent scale, steam, dust, etc. generated during rolling from entering the roller fitting part, resulting in an increase in sliding resistance and the occurrence of corrosion. It must be configured as shown in the figure.

That is, as described above, in the width adjusting roller according to the present invention, the rolling portion of one sleeve roller 11 and the rolling portion of the other sleeve roller 20 are independently separated, and the interval between them changes as the rolling width is adjusted and changed. However, this interval increases in proportion to the rolling width. In the rolling of hot steel materials, scale and dust are generated significantly, and steam is often generated due to roll cooling water and descaling water, resulting in an extremely poor atmosphere near the rolling rolls. The inside of the width adjustment roller installed under such conditions has the above-mentioned spacing, that is, the engagement recess 12 for torque transmission and the engagement protrusion 2.
Scale, steam, etc. enter from the meshing part of 1,
These mating surfaces, a pair of sleeve rollers 1
1 and 20, and further the adjustment drive shaft 3
This causes wear and corrosion due to an increase in sliding resistance and the enmeshment of scale in the threaded portions of the screws. Moreover, this tends to cause a lack of precision in changing the rolling width adjustment and shorten the life of both sleeve rollers.

Therefore, in order to effectively and simply prevent steam, scale dust, etc. generated around the rolling mill from entering the width adjusting roller, it is preferable to seal as follows.

First, as shown in FIG. 4, a cylindrical cover 55 is provided protruding from the opposing surface 11a of one sleeve roller 11 at the engaging portion of the engaging recess 12 and the engaging protrusion 21 of the pair of sleeve rollers 11 and 20. On the other hand, a cylindrical cover 56 is provided protruding from the opposing surface 20a of the other sleeve roller 20, and the outer diameter of this cover 56 is made smaller than the inner diameter of the cover 55, so that both covers 55, 5
6 are constructed such that they can be inserted into and removed from each other as shown in FIG. When the pair of covers 55 and 56 are configured to be removable and removable in this way, these covers 55 and 56 move following the axial movement of each sleeve roller 11 and 20, so that the covers 55 and 56 are always overlapped. Therefore, scale, dust, etc. do not directly enter through the gap between the pair of sleeve rollers 11 and 20.

Along with this, the case 24, one end of which is fixed to the chock 23, is provided with an oil mist supply port 58 as shown in FIG. 2, and a supply pipe 57 is connected to the supply port 58. 57 is connected to a compressed air supply source and a lubricating oil supply source, and case 2
Supply oil mist into 4. The oil mist supplied from here is compressed air containing lubricating oil (oil mist), and is filled in the case 24.
In particular, the oil mist is applied to the other sleeve roller 2.
It enters the inside of the sheath-like body 202 of No. 0 through the supply port 59 provided in the sheath-like body 202. In other words, the oil mist reaches the space formed between the inner wall surface of the sheath-shaped body 202 and the free end surface of the adjustment rod 112, and furthermore, the oil mist reaches the space formed between the inner wall surface of the sheath-shaped body 202 and the outer peripheral surface of the adjustment rod 112. Through the sliding surfaces, it reaches the engaging recesses 12 and engaging protrusions 21 of the pair of sleeve rollers 11 and 20, in other words, the internal space surrounded by the pair of covers 55 and 56, and both covers 55 , 56 is supplied with oil mist, and when the internal pressure is raised above atmospheric pressure, the overlapping portion of both covers 55, 56 can be completely air-sealed.

Therefore, fine dust and water vapor are completely prevented from entering through the overlapping portion of the covers 55 and 56. In addition, the oil mist supplied from the supply port 58 of the case 24 supplies lubricating oil by reaching the sliding surfaces of various parts, meshing parts such as screws, bearings, etc., and removes scale, dust, water vapor, etc. In addition to preventing intrusion, lubrication reduces wear on mechanical parts and extends their lifespan.

<Effects of the Invention> As explained in detail above, the roller according to the present invention includes a pair of sleeve rollers that approach or separate from each other, and a roller that extends from the opposing surface of one of these sleeve rollers along its central axis. An engagement in which an adjusting rod is provided protruding from the other sleeve roller, and a sheath-like body in which the adjusting rod is aligned is provided protruding from the opposing surface of the other sleeve roller along its central axis, and the opposing surfaces of both sleeve rollers are engaged with each other. It consists of a device.

Therefore, the rolling width can be adjusted freely and online simply by moving the pair of sleeve rollers closer together or farther apart.Since the opposing surfaces of each sleeve roller are provided with an engaging device that engages and integrates them with each other, each Even if the sleeve rollers are configured separately and independently, they work as an integrated roller during rolling and there is no problem in rolling. In addition, since a sheath-like body and an adjustment rod are provided from the facing surface of each sleeve roller, and are aligned with each other, an adjustment drive shaft that meshes with these is provided, and the adjustment drive shaft is rotated to adjust the sheath-like body and adjustment rod. If the rods are moved closer or farther apart, the rolling width can be adjusted very easily on-line.

Moreover, covers are provided protruding from each opposing surface of both sleeve rollers, and these covers are configured to be able to be inserted into and removed from each other, and the engagement device is surrounded by these covers. With this configuration, it is extremely easy and effective for scale, dust, water droplets, water vapor, etc. generated during rolling to enter the rolling roller torque transmission section or each sliding section through the gap between the pair of sleeve rollers. can be prevented.

Furthermore, a case is provided to house the matching portion of the sheath-shaped body and the adjustment rod, and this case is provided with a supply port for oil mist, etc., and the sheath-shaped body is also provided with an opening for supplying oil mist, etc., into the case. Provide a supply port.

With this configuration, it is possible to effectively prevent scale, dust, water droplets, water vapor, etc. generated during rolling due to oil mist mixed into the compressed air from the supply port from entering the rolling roller torque transmission part or each sliding part. In addition, it becomes possible to simultaneously lubricate mechanical components, thereby extending the life of each component and improving operating efficiency.

[Brief explanation of drawings]

FIG. 1 is a front view showing a part of a width adjusting rolling roller in cross section according to one embodiment of the present invention, and FIG. 2 is a front view showing a part of a width adjusting rolling roller in cross section according to another embodiment. , FIG. 3 is an explanatory diagram of a pair of cover parts, FIG. 4 is a longitudinal cross-sectional view taken along line A-A in FIG. 2, and FIGS. 5 and 6 are front views of a conventional H-section steel rolling mill. It is a front view showing a part in cross section. Code 1... H-shaped steel, 2... Vertical roller, 3...
Horizontal roller, 4... Arbor, 5... Sleeve roll, 6... Tightening bolt, 7... Shim adjustment plate,
8...Shim adjustment plate, 9...Shim adjustment plate, 10...
H-shaped steel, 11...One sleeve roller, 12...
...Engagement recess, 30...Other sleeve roller, 2
DESCRIPTION OF SYMBOLS 1... Engagement protrusion, 22... Bearing, 23... Chock, 24... Case, 30... Adjustment drive shaft, 31
...Cupling, 32...Clutch, 33...
Actuator, 57... Supply pipe for oil mist, etc., 58... Supply port for oil mist, etc.

Claims (1)

[Scope of Claims] 1. Among a pair of sleeve rollers that approach or move away from each other, an adjustment rod is provided protruding from the opposing surface of one sleeve roller along its central axis, while the adjustment rod is protruded from the opposing surface of the other sleeve roller. A sheath-shaped body with which the adjusting rod is aligned is provided protrudingly along the central axis, and an engagement device is provided for engaging opposing surfaces of both sleeve rollers with each other, and the sheath-shaped body is aligned along the common axis of the adjusting rod and the sheath-shaped body. The adjustment drive shaft is inserted through the adjustment drive shaft, and the adjustment drive shaft is engaged with the adjustment rod and the sheath-like body in a symmetrical reverse threaded relationship, and further a rotational drive source is provided for rotationally driving the adjustment drive shaft. A width-adjustable rolling roll characterized by comprising: 2 Of a pair of sleeve rollers that approach or move away from each other, an adjustment rod is provided protruding from the opposing surface of one sleeve roller along its central axis, while the adjustment rod is provided along the central axis from the opposing surface of the other sleeve roller. A sheath-like body with which the adjustment rod is aligned is provided protrudingly, an engagement device is provided for mutually engaging the opposing surfaces of both sleeve rollers, and the adjustment drive shaft passes through the adjustment rod and the sheath-like body along a common axis. At the same time, the adjustment drive shaft is engaged with the adjustment rod and the sheath-shaped body in a symmetrical reverse screw relationship, and furthermore, a rotational drive source is provided for rotationally driving the adjustment drive shaft, and furthermore, both sleeve rollers are connected to each other. A width-adjusting rolling roll characterized in that a cover is provided protruding from each opposing surface of the roll, the covers are configured to be able to be inserted into and removed from each other, and the engagement device is surrounded by the covers. 3 Of a pair of sleeve rollers that approach or separate from each other, an adjustment rod is provided protruding from the opposing surface of one sleeve roller along its central axis, while the adjustment rod is provided along the central axis from the opposing surface of the other sleeve roller. A sheath-like body with which the adjustment rod is aligned is provided protrudingly, an engagement device is provided for engaging opposing surfaces from both sleeve rollers with each other, and an adjustment drive shaft is provided along a common axis of the adjustment rod and the sheath-like body. The adjustment drive shaft is made to mesh with the adjustment rod and the sheath-like body in a symmetrical reverse threaded relationship, and furthermore, a rotational drive source for rotationally driving the adjustment drive shaft is provided. A case is provided to house a matching portion of the sheath-like body and the adjustment rod, and the case is provided with a supply port for oil mist, etc., and the sheath-like body is also provided with a supply port for oil mist, etc., which opens into the case. A width-adjustable rolling roll.