CN210059344U

CN210059344U - Axial adjusting device for roller

Info

Publication number: CN210059344U
Application number: CN201920561261.9U
Authority: CN
Inventors: 娄霆; 熊化平; 王俊; 桂芳; 申晓庆; 张宏兵; 陈志良
Original assignee: Hefei Baisheng Science and Technology Development Co Ltd
Current assignee: Hefei Baisheng Science and Technology Development Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-02-14
Anticipated expiration: 2029-04-23

Abstract

The utility model aims at providing an axial adjusting device convenient to realize online real-time regulation, and the reliable accuracy of transmission, long service life, the little roll of noise, including fixing the servo motor in the rolling mill frame, the one end of telescopic link links to each other with servo motor's output shaft, still is provided with actuating mechanism in the rolling mill frame, and the worm cooperation that sets up on the other end of actuating mechanism drive telescopic link and the roll axial adjustment sleeve outer lane or break away from the cooperation. The servo motor is directly fixed on the rolling mill frame, and due to the support of the rolling mill frame, the vibration quantity of the servo motor is small when the servo motor works, the transmission of an output shaft is stable, redundant pressure cannot be applied to the meshing of the worm gear and the worm, the worm gear and the worm are stable in meshing, the abrasion quantity is small, the noise is low, and the service life is long.

Description

Axial adjusting device for roller

Technical Field

The utility model relates to a steel rolling equipment, specifically speaking is exactly a device for adjusting rolling mill roll axial position.

Background

When the wire rod is processed, notches which are matched with each other and are arranged on rolling mill rollers are depended on, if the notches are staggered with each other or the positions of the notches are not completely opposite to each other, the rolled product has quality problems of section shape, size deviation and the like, and a waste product can be rolled out in serious cases. In view of this, it is necessary to axially adjust a pair of rolls which cooperate to ensure that the cooperating notches in the rolls are aligned.

The applicant of the utility model previously filed a patent named axial adjusting device for a roller (patent number: CN102310086B), the side of the tooth on the outer ring of the axial adjusting sleeve is provided with an external thread and forms a screw nut fit with an internal thread arranged on the inner ring of the adjusting positioning ring, the adjusting positioning ring is fixedly connected with a main bearing seat, the outer end of the worm extends to the outside of the adjusting positioning ring and is connected with the output shaft of a hydraulic motor or a servo motor, and a controller outputs a control signal to drive the hydraulic motor or the servo motor to rotate. However, the hydraulic motor or the servo motor is directly and always connected to the outer rod end of the worm, the hydraulic motor or the servo motor is supported by the worm, vibration is inevitably generated when the hydraulic motor or the servo motor works, abrasion of a worm and gear meshing part is increased, the service life is influenced, and noise is high. And the hydraulic motor or the servo motor rotates due to the vibration in the rolling process and the vibration of a transmission shaft between the worm and the motor, so that the roller moves axially, the hole pattern of a rolling hole deforms, and the quality of a piece to be rolled is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an axial adjusting device of roll convenient to realize online real-time adjustment, and the transmission is reliable accurate, long service life, noise are little.

In order to realize the purpose, the utility model discloses a technical scheme be: the axial adjusting device for the roller comprises a servo motor fixed on a rolling mill frame, one end of a telescopic rod is connected with an output shaft of the servo motor, a driving mechanism is further arranged on the rolling mill frame, and the other end of the telescopic rod is driven by the driving mechanism to be matched with or separated from a worm arranged on an outer ring of an axial adjusting sleeve of the roller.

By adopting the scheme, the servo motor is directly fixed on the rolling mill frame, and due to the support of the rolling mill frame, the vibration quantity of the servo motor is small when the servo motor works, the transmission of an output shaft is stable, redundant pressure cannot be applied to the meshing of the worm gear, the worm gear is stable in meshing, the abrasion quantity is small, the noise is low, and the service life is long.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a partially enlarged schematic view of fig. 1.

Detailed Description

For ease of illustration and ease of understanding, several basic directional and positional concepts are first described and defined. The up and down directions are directed to a state where the roll is horizontally placed, and the following description will be given by taking this state as an example only. The rolling mill can be placed in a vertical mode of the roller to perform rolling.

Because steel is the forbidden area of safety in its periphery in rolling process, operating personnel is unable in the rolling process and realizes online adjustment, the utility model provides a scheme is for realizing providing probably of online axial adjustment, is showing the control and the rolling precision that have improved steel rolling equipment, not only provides the assembly guarantee for the reduction of rejection rate to can in time discover whether the product is out of tolerance and can rectify poor adjustment rapidly, practiced thrift the plenty of time in addition, and alleviate workman's intensity of labour, specific scheme is as follows:

as shown in fig. 1-3, an axial adjusting device for a roller includes a servo motor 20 fixed on a rolling mill stand 10, one end of a telescopic rod 30 is connected to an output shaft of the servo motor 20, the rolling mill stand 10 is further provided with a driving mechanism, and the driving mechanism drives the other end of the telescopic rod 30 to be engaged with or disengaged from a worm 50 arranged on an outer ring of an axial adjusting sleeve for the roller. The servo motor 20 is directly fixed on the rolling mill frame 10, and due to the support of the rolling mill frame 10, the vibration quantity of the servo motor 20 is small when the servo motor works, the transmission of an output shaft is stable, redundant pressure cannot be applied to the meshing of a worm gear, the worm gear is stable in meshing, the abrasion quantity is small, the noise is low, and the service life is long. Meanwhile, the servo motor 20 as a power mechanism has the effect that the source of the driving signal can be provided by the controller, so long as the controller outputs the driving adjustment signal, the servo motor 20 can timely and accurately respond, and especially, the accuracy and the reliability of the adjustment can be ensured.

Considering the position where the servo motor 20 is to be disposed with good stability or to be avoided from other parts, the servo motor 20 is preferably disposed on the upper portion of the rolling mill stand 10, one end of the telescopic rod 30 is connected to the output shaft of the servo motor 20 through the first universal joint 31, the other end is connected to the second universal joint 32, the second universal joint 32 is connected to the shaft sleeve 61 rotatably disposed on the lifting rod frame 60, and the shaft sleeve 61 is connected to the rod end socket type key or socket type square shaft or square hole of the worm 50. Through the setting of first universal joint 31 and second universal joint 32, just so need not consider servo motor 20's output shaft to be located the requirement that worm 50 is just followed and both want the collineation, what position is fit for installing servo motor 20 just installs servo motor 20 where, can both guarantee the effective transmission of power. Besides the drive mode of key connection, the drive mode of a square shaft, a square hole or a multi-edge shaft can be selected.

As shown in fig. 2, because the worm 50 only translates along the rod core direction, the sleeve 61 sleeved with the worm 50 also only translates correspondingly, one end of the lifting rod frame 60 is connected with the rod end of the piston rod 41 of the oil cylinder 40, the rod core of the piston rod 41 is arranged in parallel with the rod core of the worm 50, and the sleeve 61 is connected with the overhanging end of the lifting rod frame 60 when rotating. The length of the telescopic rod 30 driven by the oil cylinder 40 is changed to enable the shaft sleeve 61 to be matched with or separated from the worm 50, and the lifting rod frame 60 is arranged to ensure the translational motion of the shaft sleeve 61.

Further, for smooth torque transmission, the telescopic rod 30 has a spline sleeve 33 at an upper section and a spline shaft 34 at a lower section, and the lower end of the spline shaft 34 is connected with the bushing 61. The spline sleeve 33 is arranged at the upper section and the spline shaft lever 34 is arranged at the lower end, so that sundries and dust can be prevented from entering the joint of the spline sleeve and the spline shaft lever and influencing the transmission of torque.

In order to ensure the accuracy of the sleeve 61 sleeving the worm 50, the sleeve 61 is positioned right above the worm 50, and the axis of the sleeve 61 is collinear with the rod axis of the worm 50.

The worm 50 is arranged on an axial adjusting sleeve outer ring of the upper roll chock 70, teeth and the worm 50 are further arranged on the axial adjusting sleeve outer ring to form a worm gear mechanism, and external threads are arranged beside the teeth on the axial adjusting sleeve outer ring and are matched with internal threads arranged on an adjusting positioning ring inner ring fixed on the upper roll chock 70 to form a screw nut. Detailed description of the invention the applicant of the present invention has discussed in detail in the patent entitled "axial adjustment device for a roll" (patent No.: CN102310086B), and the discussion is not repeated here.

As an integral roller system, the roller system is integrally pushed into or pulled out of a rolling mill frame, and the scheme that the power mechanism is matched with or separated from a worm is adopted, so that the roller system is convenient to replace, and the phenomenon of interference with other parts cannot occur.

Claims

1. An axial adjustment device of a roller, characterized in that: the rolling mill comprises a servo motor (20) fixed on a rolling mill stand (10), one end of a telescopic rod (30) is connected with an output shaft of the servo motor (20), a driving mechanism is further arranged on the rolling mill stand (10), and the other end of the telescopic rod (30) is driven by the driving mechanism to be matched with or separated from a worm (50) arranged on an outer ring of a roller axial adjusting sleeve.

2. Axial adjustment device of a roll according to claim 1, characterized in that: the servo motor (20) is arranged on the upper portion of the rolling mill frame (10), one end of the telescopic rod (30) is connected with an output shaft of the servo motor (20) through a first universal joint (31), the other end of the telescopic rod is connected with a second universal joint (32), the second universal joint (32) is connected with a shaft sleeve (61) which is rotatably arranged on the lifting rod frame (60), and the shaft sleeve (61) is connected with a rod end insert type key or an insert type square shaft and a square hole of the worm (50).

3. The axial adjustment device of a roll according to claim 2, characterized in that: one end of the lifting rod frame (60) is connected with the rod end of a piston rod (41) of the oil cylinder (40), the rod core of the piston rod (41) is arranged in parallel with the rod core of the worm (50), and the shaft sleeve (61) is connected with the overhanging end of the lifting rod frame (60) when rotating.

4. The axial adjustment device of a roll according to claim 1, 2 or 3, characterized in that: the upper section of the telescopic rod (30) is a spline sleeve (33), the lower section of the telescopic rod is a spline shaft rod (34), and the lower end of the spline shaft rod (34) is connected with a shaft sleeve (61).

5. The axial adjustment device of a roll according to claim 4, characterized in that: the shaft sleeve (61) is positioned right above the worm (50), and the shaft core of the shaft sleeve (61) is collinear with the rod core of the worm (50).

6. Axial adjustment device of a roll according to claim 1, characterized in that: the worm (50) is arranged on an axial adjusting sleeve outer ring of the upper roll bearing seat (70), teeth and the worm (50) are further arranged on the axial adjusting sleeve outer ring to form a worm gear mechanism, and external threads are arranged beside the teeth on the axial adjusting sleeve outer ring and form screw rod nut matching with internal threads arranged on an adjusting positioning ring inner ring fixed on the upper roll bearing seat (70).