CN219188131U

CN219188131U - Axial adjusting mechanism for roller of rolling mill

Info

Publication number: CN219188131U
Application number: CN202223089892.6U
Authority: CN
Inventors: 张子念; 周德洪; 张俊
Original assignee: Cisdi Equipment Co ltd
Current assignee: Cisdi Equipment Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-06-16
Anticipated expiration: 2032-11-16

Abstract

The utility model belongs to the field of mechanical equipment, and relates to a rolling mill roller axial adjustment mechanism, which comprises a support and a worm supported on the support, wherein one end of the worm is directly connected with the output end of a speed reducer, the other end of the worm passes through an input gear of a gear mechanism to be fixed with the input gear, and the output end of the gear mechanism is connected with an encoder; the other end of the speed reducer is also connected with an executing element, a bevel gear is also arranged in the support, and the worm is meshed with the bevel gear; the actuator and the encoder are both connected to a remote control system. The motion condition of the adjusting mechanism is detected through the encoder, so that the motion condition is fed back to the remote control system, the remote control system processes the signals and then sends the signals to the executing element, the executing element provides power to drive the mechanism to move, and the remote adjustment of the mechanism is realized. The adjusting mechanism is applied to a rolling mill roller system, realizes axial adjustment of the rolling mill roller, is safe and reliable, acts fast, is convenient to operate, and saves time and labor in adjustment.

Description

Axial adjusting mechanism for roller of rolling mill

Technical Field

The utility model belongs to the field of mechanical equipment, and relates to a rolling mill roller axial adjusting mechanism.

Background

The traditional rolling mill roller axial adjusting mechanism is divided into a mechanical axial adjusting mechanism and a hydraulic axial adjusting mechanism.

For the traditional mechanical axial adjusting mechanism, a single-thread sleeve and worm-and-wheel type is adopted for axial adjustment. By adopting the single thread sleeve, axial play easily occurs in the thread clearance between threads, and the axial positioning is inaccurate. After axial movement, axial dislocation can occur between the worm wheel and the worm, so that the worm is not fully meshed with the worm wheel, unbalanced load is easy to occur, and the service lives of the worm and the worm wheel are influenced.

For the traditional hydraulic axial adjusting mechanism, a hydraulic servo system is adopted, and the mechanism similar to a hydraulic cylinder structure is added for axial adjustment. The mechanism is easy to leak hydraulic oil, so that inaccurate positioning, axial movement and the like are caused, the input cost to a servo system is high, and the later maintenance cost is also high.

The traditional rolling mill roller axial mechanism has the problems of axial float, high failure rate, high input cost, difficult adjustment and maintenance and the like, and the maintenance environment is severe, so that the time and the labor are wasted, and the requirement of high yield cannot be met. Therefore, the axial adjusting mechanism of the rolling mill roller is particularly important, and the axial adjusting mechanism is high in stability, simple to maintain, time-saving and labor-saving.

Disclosure of Invention

Therefore, the utility model aims to provide the axial adjustment mechanism for the roller of the rolling mill, which overcomes the existing problems, saves adjustment time, ensures convenience in operation and improves stability of equipment.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the axial roller regulating mechanism for rolling mill includes one support, one worm with one end connected directly to the output end of the speed reducer and the other end fixed to the input gear of the gear mechanism, and one encoder connected to the output end of the gear mechanism; the other end of the speed reducer is also connected with an executing element, a bevel gear is also arranged in the support, and the worm is meshed with the bevel gear; the actuator and the encoder are both connected to a remote control system.

Optionally, two ends of the worm are supported on the support through the flange plate and the supporting sleeve.

Optionally, the left end and the right end of the support are connected with the internal thread sleeves, and the support is connected with the two pairs of internal thread sleeves through bolts; the left end and the right end of the bevel gear are connected with external thread sleeves, and the bevel gear is connected with the two pairs of external thread sleeves through threads.

Optionally, gaps are arranged on the left side and the right side of the bevel gear, and the two pairs of external thread sleeves are meshed with each other in the two pairs of internal thread sleeves.

Optionally, a bearing is arranged in the external thread sleeve and is fixed by two pairs of external thread sleeves; the bearing inner ring is also internally provided with a horn sleeve and a connecting sleeve, the horn sleeve and the connecting sleeve clamp the bearing inner ring in the middle, and the horn sleeve and the connecting sleeve are fixedly connected through bolts.

Optionally, the rolling mill roller is sleeved in the horn sleeve, and the rolling mill roller is fixed with the connecting sleeve through a large bolt.

Optionally, the gear mechanism is fixedly installed on the support, the gear mechanism is mainly composed of an input gear, an output gear and a plurality of intermediate transmission gears matched between the input gear and the output gear, the worm penetrates through a central hole of the input gear and is fixedly connected with the input gear, and the encoder is connected with the output gear of the gear mechanism; one end of the worm, which penetrates out of the gear mechanism, is an extension part which is designed into a flat square structure convenient for manual adjustment.

Alternatively, the intermediate gear in the gear mechanism may be 1 or more.

Alternatively, the actuator is an electric or hydraulic or pneumatic motor.

Alternatively, two arrangements are integrally provided, either vertically or horizontally.

Optionally, a flange is further fixed on the support, and the speed reducer is fixed on the flange.

Optionally, the encoder is equipped with the protection casing outward, prevents that the foreign matter from getting into, avoids the interference, improves detection accuracy.

The utility model has the beneficial effects that: the utility model relates to a rolling mill roller axial adjusting mechanism, which detects the motion condition of the adjusting mechanism through an encoder, so that the motion condition is fed back to a remote control system, the remote control system processes signals and then sends the signals to an execution element, the execution element provides power to drive the mechanism to move, and the remote adjustment of the mechanism is realized; meanwhile, the automatic adjustment can be realized, the manual adjustment position is also realized, the manual adjustment position is convenient for the installation and the disassembly of equipment, and the manual adjustment can be realized after the automatic system fails.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a horizontal arrangement of a rolling mill roller axial adjustment mechanism according to the present utility model;

FIG. 2 is a schematic diagram showing the arrangement relationship of the bevel gear and worm of the present utility model

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a schematic view of the gear mechanism and encoder assembly of the present utility model

FIG. 5 is a schematic view of a vertical arrangement of a rolling mill roller axial adjustment mechanism according to the present utility model.

Reference numerals: actuator 1, speed reducer 2, flange 3, support 4, worm 5, helical gear 6, support sleeve 7, gear mechanism 8, encoder assembly 9, external thread sleeve 10, internal thread sleeve 11, mill roll 12, horn sleeve 13, bearing 14, connection sleeve 15, large bolt 16, gear housing 17, input gear 18, intermediate gear 19, output gear 20, coupling 21, encoder support 22, encoder 23, boot 24.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present utility model by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the utility model; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present utility model, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 5, the axial adjustment mechanism for a rolling mill roller comprises an executing element 1, a speed reducer 2, a flange 3, a support 4, a worm 5, a bevel gear 6, a supporting sleeve 7, a gear mechanism 8, an encoder assembly 9, an external thread sleeve 10, an internal thread sleeve 11, a rolling mill roller 12, a horn sleeve 13, a bearing 14, a connecting sleeve 15, a large bolt 16 and other main parts. The output end of the executing element 1 is directly connected with the input end of the speed reducer 2, the output end of the speed reducer 2 is directly connected with one end of the worm 5, the speed reducer 2 is fixed on the flange 3, and the flange 3 is fixed on the support 4; the worm 5 is supported on the support 4 through the flange 3 and the supporting sleeve 7; the bevel gear 6 is arranged in the support 4, and the bevel gear 6 is meshed with the worm 5; the helical gear 6 is assembled with an external thread sleeve 11, a rolling mill roller 12, a horn sleeve 13, a bearing 14, a connecting sleeve 15 and a large bolt 16, and two pairs of internal thread sleeves 10 are fixed on a support 4; the gear mechanism 8 is fixedly arranged on the support 4, and the gear mechanism 8 mainly comprises an input gear, an output gear and an intermediate gear matched between the input gear and the output gear; the other end of the worm 5 passes through the central hole of the input gear of the gear mechanism 8, is connected with the input gear, is prolonged, and is provided with a flat square structure D at the prolonged end. The encoder 23 in the encoder assembly 9 is connected with the output gear 20 of the gear mechanism 8 through a coupler 21, wherein the actuator 1 and the encoder 23 are connected with a remote control system; the encoder 23 is provided with a protective cover 24 to prevent foreign matters from entering, avoid interference and improve detection accuracy.

In this example, as shown in fig. 2, the teeth of the helical gear 6 mesh with the threads of the worm 5, and the helical gear 6 is disposed perpendicularly intersecting the worm 5. The worm 5 moves along the axial direction of the helical gear 6, the moving range is within the range of the tooth width of the helical gear 6, and the transmission meshing degree of the helical gear 6 and the worm 5 is not affected.

In this embodiment, as shown in fig. 3, the left and right ends of the support 4 are connected with the female screw sleeves 10, and the support 4 is connected with the two pairs of female screw sleeves 10 through bolts; the left end and the right end of the bevel gear 6 are connected with the external thread sleeves 11, the bevel gear 6 is connected with the two pairs of external thread sleeves 11 through bolts, gaps are formed in the left side and the right side of the bevel gear 6, the gap is formed in the left side, the gap is formed in the B position, and the gap is formed in the right side. The two pairs of external threads 11 intermesh within the two pairs of internal threads 10. The bearing 14 is arranged in the external thread sleeve 11, and the outer ring of the bearing 14 is fixed in the middle by two pairs of external threads 11; the horn sleeve 13 and the connecting sleeve 15 are arranged in the inner ring of the bearing 14, the inner ring of the bearing 14 is fixed in the middle, and the horn sleeve 13 and the connecting sleeve 15 are connected and fixed through bolts. The roller 12 is sleeved in the horn sleeve 15, and the roller 12 is fixed with the connecting sleeve 15 through a large bolt 16.

In the present embodiment, as shown in fig. 4, the gear mechanism 8 includes main components such as a gear housing 17, an input gear 18, an intermediate gear 19, and an output gear 20. The gear box 17 is of a split structure and consists of a box body and a box cover, the box cover is fixed on the box body through bolts, the gear in the gear box body is convenient to install, and the gear box 17 is integrally fixed on the support 4. The input gear 18 is supported on the gear housing 17 through bearings on the left and right sides, and the worm 5 passes through the input gear 18 and is fixed. The left and right ends of the intermediate gear 19 are supported by bearings on the gear housing 17 and mesh with the input gear 18. The left and right ends of the output gear 20 are supported on the gear housing 17 through bearings and meshed with the intermediate gear 19, and the left shaft end of the output gear 20 is provided with a thin shaft and extends out of the gear housing 17.

The encoder assembly 9 comprises a coupler 21, an encoder bracket 22, an encoder 23 and a protective cover 24. An encoder bracket 22 is mounted on the gear housing 17, an encoder 23 is mounted on the encoder bracket 22, and a coupling 21 connects together the input shaft of the encoder 23 to the elongated thin shaft of the output gear 20. A protective cover 24 is mounted on the gear housing 17 and covers the encoder 23.

The number of teeth of the input gear 17 is consistent with that of the output gear 20, the transmission ratio of the gear mechanism 8 is 1, the output gear can transmit the motion condition of the worm 5 in a ratio of 1:1, the encoder 23 is connected with the output gear 20 to detect the motion condition of the gear mechanism 8, the axial position of the rolling mill roller 12 is indirectly obtained through the worm 5, the helical gear 6, the external thread sleeve 11, the horn sleeve 13, the bearing 14, the connecting sleeve 15 and the condition of the large bolt 16, and is timely fed back to a remote control system, the state of the mechanism can be known through monitoring the motion condition of the mechanism, whether the state deviates from the set position or not, whether the position of the mechanism needs to be adjusted or not, the remote control system signals to control the executing element 1, the executing element 1 provides power to drive the speed reducer 2 to move, the speed reducer 2 drives the worm 5 to rotate, the helical gear 6 in the support 4 is driven by the worm 5, and the external thread sleeve 11 is driven by the rotation of the helical gear 6. The internal thread sleeve 10 is fixed, the external thread sleeve 11 rotates in the internal thread sleeve 10, and the external thread sleeve 11 moves in the internal thread sleeve 10 in the axial direction, so that the rolling mill roller 12 is driven to move in the axial direction, the remote axial adjustment of the rolling mill roller 12 is realized, and the unmanned remote automatic adjustment can be realized theoretically.

In this embodiment, the encoder 23 records the number of turns of the output gear of the gear mechanism 8, the worm 5 is directly connected with the output shaft of the speed reducer 2, the actuator 1 is directly connected with the input shaft of the speed reducer 2, and the number of turns of the actuator 1 can be obtained by converting the transmission ratio of the gear mechanism 8 and the transmission ratio of the speed reducer 2. The gear ratio of the worm 5 meshed with the bevel gear 6, the lead of the internal thread 10 or the lead of the external thread 11 can be converted into the axial displacement of the external thread 11 from the number of the remote moving coils of the actuator 1, thereby obtaining the axial displacement of the rolling mill roller 12.

According to the utility model, the power provided by the executing element 1 is matched with the speed reducer 2 to further optimize the power, so that low-speed heavy load is realized, and the worm 5 rotates more stably and accurately by transmitting the power through the speed reducer 2; the worm 5 rotates in meshing with the bevel gear 6, the external thread sleeve 11 moves relatively in the internal thread sleeve 10, the worm 5 and the bevel gear 6 also move relatively, the meshing degree of the bevel gear 6 and the worm 5 is not changed, and the transmission is more reliable. The gear mechanism 8 is connected with the worm 5, the rotation condition of the worm 5 is transmitted to the encoder 23, the encoder 23 can judge the movement condition of the helical gear 6 and the internal and external thread sleeves through the movement condition of the worm 5, so that the movement condition of the whole system is known, the encoder 23 transmits signals to the remote control system, the remote control system processes the signals and then sends instructions to the execution element 1, the execution element 1 executes operation according to the instructions, the remote axial adjustment of the rolling mill roller is realized, and the rolling mill roller is not required to be adjusted by workers on site, and is safe, reliable, quick in action, convenient to operate, time-saving and labor-saving in adjustment.

In this embodiment, the output shaft of speed reducer 2 is external spline, and the terminal surface of worm 5 is interior splined hole, and connected mode is spline connection, has the transmission big moment of torsion, and installation is dismantled conveniently, advantages such as simple structure.

In this embodiment, worm 5 passes gear mechanism 8 to the extension, the extension end sets up flat square structure D here, uses spanner card owner D department, can rotate worm 5, thereby realizes manual adjustment, and manual adjustment combines together with automatic adjustment, and safe and reliable is more convenient when the maintenance is installed.

In the embodiment, the mechanism formed by meshing the bevel gear 6 and the worm 5 has the advantages that the meshing degree cannot be influenced after the bevel gear 6 and the worm 5 are axially dislocated in the effective range, the bearing capacity is high, and the transmission is more stable.

In this embodiment, two pairs of internal thread sleeves 10 are meshed with two pairs of external thread sleeves 11, and the two pairs of internal thread sleeves are used in pairs, so that the internal clearance between the internal thread sleeves and the external thread sleeves is eliminated, the transmission precision is improved, the bearing capacity is increased, and the axial movement is prevented. The left moving stroke of the external thread sleeve 11 and the bevel gear 6 in the internal thread sleeve 10 is the gap size at the position B, the right moving stroke of the external thread sleeve 11 and the bevel gear 6 in the internal thread sleeve 10 is the gap size at the position C, and the gap at the position B and the gap at the position C are just the effective range of dislocation of the bevel gear 6 and the worm 5. The external thread 11 is effectively prevented from being tripped in the moving process of the internal thread sleeve 10, and the bevel gear 6 and the worm 5 are ensured to be normally meshed, so that the safety and reliability are ensured.

In this embodiment, as shown in fig. 1 and 5, there are two arrangements of the axial adjustment mechanism of the rolling mill roller, and fig. 1 is a horizontal arrangement, and is usually used in a vertical rolling mill, so as to facilitate maintenance operation of the vertical rolling mill; FIG. 3 is a vertical arrangement, typically used in a horizontal rolling mill, to facilitate maintenance operations of the horizontal rolling mill. In order to ensure the unification of the roller system structure, the structure of the axial adjusting mechanism of the roller of the rolling mill is also unified, and the horizontal arrangement structure is directly rotated by 90 degrees, so that the vertical arrangement mode is adopted, and the interchangeability is good. It should be noted that both the horizontal arrangement of fig. 1 and the vertical arrangement of fig. 5 can employ a vertical rolling mill and a horizontal rolling mill, but only the convenience of maintenance and operation is affected.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims

1. An axial roller adjusting mechanism of a rolling mill is characterized in that: the device comprises a support, a worm supported on the support, wherein one end of the worm is directly connected with the output end of a speed reducer, and the other end of the worm passes through an input gear of a gear mechanism to be fixed with the input gear; the other end of the speed reducer is also connected with an executing element, a bevel gear is also arranged in the support, and the worm is meshed with the bevel gear; the left end and the right end of the support are connected with the internal thread sleeves, and the support is connected with the two pairs of internal thread sleeves through bolts; the left end and the right end of the bevel gear are connected with the external thread sleeves, the bevel gear is connected with the two pairs of external thread sleeves through bolts, gaps are arranged on the left side and the right side of the bevel gear, and the two pairs of external thread sleeves are meshed with each other in the two pairs of internal thread sleeves.

2. A rolling mill roller axial adjustment mechanism according to claim 1, characterized in that: the inside of the external thread sleeve is provided with a bearing which is fixed by two pairs of external thread sleeves; the bearing inner ring is also internally provided with a horn sleeve and a connecting sleeve, the horn sleeve and the connecting sleeve clamp the bearing inner ring in the middle, and the horn sleeve and the connecting sleeve are fixedly connected through bolts.

3. A rolling mill roller axial adjustment mechanism according to claim 2, characterized in that: the rolling mill roller is sleeved in the horn sleeve, and the rolling mill roller and the connecting sleeve are fixed through a large bolt.

4. A rolling mill roller axial adjustment mechanism according to claim 1, characterized in that: the output end of the gear mechanism is also connected with an encoder; the actuator and the encoder are both connected to a remote control system.

5. The rolling mill roller axial adjustment mechanism of claim 4, wherein: the gear mechanism is fixedly arranged on the support, and mainly comprises an input gear, an output gear and an intermediate gear matched between the input gear and the output gear, wherein a worm penetrates through a central hole of the input gear and is fixedly connected with the input gear, and an encoder is connected with the output gear of the gear mechanism through a coupler; one end of the worm, which penetrates out of the gear mechanism, is an extension part which is designed into a flat square structure convenient for manual adjustment.

6. The rolling mill roller axial adjustment mechanism of claim 5, wherein: the gear ratio of the gear mechanism is 1.

7. A rolling mill roller axial adjustment mechanism according to claim 1, characterized in that: the actuating element is an electric motor or a hydraulic motor or a pneumatic motor.

8. A rolling mill roller axial adjustment mechanism according to claim 1, characterized in that: the whole is provided with two arrangement modes, namely vertical arrangement or horizontal arrangement.

9. A rolling mill roller axial adjustment mechanism according to claim 1, characterized in that: the support is also fixed with a flange plate, and the speed reducer is fixed on the flange plate.

10. A rolling mill roller axial adjustment mechanism according to claim 1, characterized in that: the encoder is equipped with the protection casing outward, prevents that the foreign matter from getting into, avoids the interference, improves detection accuracy.