A ring rolling machine cone roller drive structure and method

Abstract

The present application belongs to the technical field of transmission equipment, and particularly relates to a kind of ring rolling machine taper roller transmission structure and method, including taper roller, reduction motor, transmission connection part, taper roller, reduction motor is installed on frame, the spindle of reduction motor is hollow structure, one end of taper roller installs extension section, the spindle of reduction motor is coaxial with the extension section of taper roller through shaft sleeve and is connected by transmission connection part to realize transmission connection;During transmission, two thrust bearings bear the axial force of taper roller, cylindrical bearing supports the extension section of taper roller in radial direction, effectively avoids the axial movement and radial swing of taper roller extension section, ensures accurate torque transmission, transmission is stable;Meanwhile, the connection mode of each component is detachable adaptation, and the maintenance and replacement of single component are facilitated, further reduce equipment failure rate, prolong the overall service life of transmission structure.

Description

Technical Field

[0001] This invention belongs to the field of transmission equipment technology, specifically relating to a conical roller transmission structure and method for a ring rolling mill. Background Technology

[0002] Ring rolling mills are core equipment in the field of ring component processing. The conical roller, as a key transmission component of the ring rolling mill, directly affects the processing accuracy of ring components, equipment operating efficiency, and long-term economic efficiency due to its transmission stability, ease of assembly, and maintenance costs. Currently, existing conical roller transmission methods and corresponding transmission structures for ring rolling mills still have many technical shortcomings, making it difficult to meet the demands of high efficiency, precision, and low cost in industrial production.

[0003] Existing tapered rollers and tie rods mostly use threaded connections, which require cumbersome thread tightening during assembly and gradual loosening during disassembly. This is not only time-consuming and labor-intensive, significantly reducing assembly and disassembly efficiency, but also prone to jamming and stripping after long-term use, further increasing maintenance difficulty. In addition, the existing transmission structure requires disassembling multiple connecting parts before the tapered roller, geared motor, and main shaft can be separated from the main frame. The operation process is cumbersome, seriously affecting equipment maintenance efficiency and limiting its use. Summary of the Invention

[0004] This invention addresses the technical problems existing in the prior art by providing a conical roller drive structure and method for a ring rolling mill.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a conical roller transmission structure and method for a ring rolling mill, comprising a conical roller, a geared motor, and a transmission connection part. The conical roller and the geared motor are mounted on a frame. The main shaft of the geared motor has a hollow structure. An extension section is installed at one end of the conical roller. The main shaft of the geared motor is coaxially engaged with the extension section of the conical roller through a bushing, and the transmission connection is realized through the transmission connection part.

[0006] Preferably, the transmission connection part includes a bearing unit, a connecting unit, and a mating unit. The mating unit is detachably installed at one end of the tapered roller extension section. The connecting unit is inserted into the main shaft of the geared motor and is detachably connected to the mating unit. The bearing unit includes a bushing, which is a bearing sleeve. The bushing is sleeved between the tapered roller extension section and the main shaft of the geared motor to ensure the coaxiality of the tapered roller and the main shaft of the geared motor.

[0007] Preferably, the bearing unit includes a bearing sleeve assembly and several limiting components. The bearing sleeve assembly is detachably installed in the frame, and the limiting components are installed between the bearing sleeve assembly and the tapered roller extension section.

[0008] Preferably, the bearing sleeve assembly includes a bearing sleeve, two thrust bearings, a cylindrical bearing, an internal spline, and an external spline. The bearing sleeve is an annular structure with an inner ring. Several flat grooves are formed on the inner wall of one end of the inner ring of the bearing sleeve. These grooves are evenly distributed circumferentially around the central axis of the bearing sleeve. Several planar grooves are formed on the outer surface of one end of the tapered roller extension section. These grooves are evenly distributed circumferentially along the central axis of the tapered roller. The thrust bearings and the cylindrical bearing are installed inside the inner ring of the bearing sleeve, and the thrust bearings, cylindrical bearing, and bearing sleeve are coaxially arranged. The two thrust bearings are located on both sides of the inner ring of the bearing sleeve, and the cylindrical bearing is located between the two thrust bearings. The internal spline is fixedly installed inside the inner ring of the bearing sleeve and is coaxially arranged with the bearing sleeve. The external spline is fixedly installed on the outer circumference of the main shaft of the geared motor, and the internal spline and the external spline form a spline fit.

[0009] Preferably, the limiting component includes a connecting key, and threaded holes are formed on the top surface of the connecting key and the bottom surface of the flat groove.

[0010] Preferably, the connection unit includes a pushing component and a locking component. The pushing component is detachably mounted on the main shaft of the geared motor, and the locking component is connected to the pushing component.

[0011] Preferably, the pushing component includes a hydraulic cylinder and a bearing housing. The bearing housing is sleeved on the outer periphery of the geared motor spindle and fixedly connected to the spindle, and rotates synchronously with the spindle. The fixed end of the hydraulic cylinder is fixedly connected to the bearing housing, and the hydraulic cylinder and the bearing housing are coaxially arranged.

[0012] Preferably, the locking assembly includes a pull rod and a shift fork, with one end of the pull rod fixedly connected to the moving end of the hydraulic cylinder, and the shift fork fixedly installed on the other end of the pull rod.

[0013] Preferably, the mating unit includes an end cap, with several threaded holes at one end of the end cap and at one end of the tapered roller extension. A bolt passes through two threaded holes on the same axis to fix the end cap to one end of the tapered roller extension. A placement groove is provided at one end of the tapered roller extension, and an elongated groove is provided at one end of the end cap. The shift fork passes through the elongated groove and enters the placement groove.

[0014] A method for driving a conical roller in a ring rolling mill, employing the aforementioned conical roller drive structure, comprises the following steps:

[0015] Step 1: Pre-installation and positioning of the transmission mechanism:

[0016] The tapered roller and the geared motor are respectively fixed to the inner and outer sides of the frame, with the cylindrical extension section of the tapered roller with the larger diameter end facing the hollow main shaft of the geared motor, ensuring that the central axes of the two are coaxial; after pre-installing two thrust bearings and one cylindrical bearing on the bearing sleeve, the bearing sleeve assembly is fixed in the frame mounting hole by bolts through the corresponding screw holes of the bearing sleeve and the frame mounting hole, ensuring that the bearing sleeve is coaxial with the main shaft of the geared motor and the tapered roller extension section;

[0017] Step 2: Connecting the spline drive pair:

[0018] When the geared motor spindle is started to rotate at low speed, the external spline fixed on its outer circumference moves towards the internal spline of the inner ring of the bearing sleeve. The external spline and the internal spline of the inner hole of the bearing sleeve are circumferentially aligned, smoothly inserted axially, and fully engaged, so that the external spline and the internal spline are precisely engaged to form a spline fit, realizing the torque transmission connection between the geared motor spindle and the bearing sleeve.

[0019] Step 3: Limiting the transmission between the tapered roller and the bearing sleeve:

[0020] Push the tapered roller so that its extension section extends into the inner ring of the bearing sleeve and precisely mates with the inner ring of the cylindrical bearing inside the bearing sleeve; place the connecting key between the flat groove of the inner ring of the bearing sleeve and the flat groove of the tapered roller extension section, and fix the connecting key in place by bolting through the corresponding threaded holes of the flat groove and the connecting key, thereby restricting the relative circumferential rotation between the tapered roller and the bearing sleeve.

[0021] Step 4: Connect the mating unit with the locking assembly:

[0022] The end cap is fixed to one end of the tapered roller extension section with bolts, so that the long groove of the end cap is precisely connected with the circular placement groove of the tapered roller extension section; the bearing housing is sleeved on the outer circumference of the main shaft of the geared motor, and the oil cylinder is pre-fixed to the bearing housing to ensure that the oil cylinder and the bearing housing are coaxial.

[0023] Step 5: Locking the locking components:

[0024] The moving end of the control cylinder extends, pushing the pull rod and shift fork towards the end cover, so that the shift fork passes through the long slot of the end cover and extends into the placement slot of the tapered roller; the pull rod, cylinder and shift fork are rotated 90° around the axis so that the shift fork and the long slot of the end cover are in a cross-perpendicular state, realizing the locking of the tapered roller and the geared motor transmission mechanism, and at this time the bearing seat is fixedly installed on the main shaft of the geared motor;

[0025] Step Six: Start the transmission:

[0026] When the geared motor is started, its main shaft rotates and transmits torque to the bearing sleeve through the meshing of the external and internal splines. The bearing sleeve drives the tapered roller to rotate synchronously through the circumferential limiting action of the connecting key. During the transmission process, the two thrust bearings bear the axial force of the tapered roller, and the cylindrical bearing provides radial support to the extension section of the tapered roller, ensuring the smooth rotation of the tapered roller and realizing the transmission of the ring rolling operation.

[0027] Step 7: Disconnect the transmission:

[0028] When maintenance is required, turn off the geared motor, reverse the pull rod and shift fork until they are aligned with the long slot of the end cover, control the moving end of the hydraulic cylinder to retract, drive the shift fork out of the placement slot, and release the lock; then separate the tapered roller and bearing sleeve, and the geared motor and bearing sleeve assembly to complete the disassembly of the transmission mechanism.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0030] (1) Significantly improve assembly and disassembly efficiency and save operation time: The tapered roller and the tie rod abandon the traditional threaded connection method and use a hydraulic cylinder and a shift fork to achieve pull-lock and separation. When installing the transmission structure, the hydraulic cylinder pushes the shift fork to accurately connect and lock with the tapered roller, eliminating the need for cumbersome thread tightening operations. When disassembling, the hydraulic cylinder can drive the shift fork to retract, first pushing the tapered roller out of the main frame, and then releasing the detachable connection between the geared motor and the main frame, realizing the rapid separation of the geared motor and the main shaft from the main frame, significantly shortening the installation and disassembly time, and improving equipment maintenance and operation efficiency. Compared with the traditional coupling connection, this invention abandons the circumferential bolt fastening form and adopts a hydraulic cylinder-driven shift fork axial push-pull and circumferential rotation locking structure, which fundamentally solves the problems of cumbersome coupling disassembly and assembly, difficult alignment, easy loosening and seizing of bolts, and easy damage to parts during disassembly, realizing the rapid, reliable, and safe connection and separation of the tapered roller and the transmission mechanism, significantly improving the assembly and disassembly efficiency and equipment operation stability.

[0031] (2) Ensure transmission stability and improve the rolling precision: Several connecting keys are installed between the flat groove of the bearing sleeve and the flat groove of the tapered roller extension section by bolts to achieve stable transmission between the bearing sleeve and the tapered roller; even if the connecting keys wear out due to long-term use, the connecting keys can still be tightened by tightening the bolts to effectively prevent the tapered roller from shaking, ensure smooth transmission of the tapered roller, and thus ensure the rolling precision and reduce product quality defects caused by unstable transmission.

[0032] (3) Reduce maintenance costs and facilitate later maintenance: The key connection of the bearing sleeve adopts an internal spline structure. The external spline and the internal spline sleeve form a spline fit. When the internal spline sleeve wears due to long-term transmission, it is not necessary to replace the entire bearing sleeve. Only the internal spline sleeve needs to be replaced to restore the transmission performance, which greatly saves maintenance costs. At the same time, it simplifies the maintenance process, improves the convenience of maintenance, and extends the service life of the entire transmission structure.

[0033] (4) Smooth and reliable transmission, extending the service life of components: During the transmission process, the two thrust bearings bear the axial force of the tapered roller, and the cylindrical bearing provides radial support for the extension section of the tapered roller, effectively preventing axial movement and radial sway of the extension section of the tapered roller, ensuring accurate torque transmission and smooth transmission; at the same time, the connection method of each component is detachable and adaptable, which facilitates the maintenance and replacement of individual components, further reducing the equipment failure rate and extending the overall service life of the transmission structure. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0035] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0037] Figure 3 yes Figure 2 A magnified view of part A;

[0038] Figure 4 This is a schematic diagram of the mating structure between the connecting unit and the end cap. Figure 1 ;

[0039] Figure 5 This is a schematic diagram of the mating structure between the connecting unit and the end cap. Figure 2 ;

[0040] Figure 6 This is a structural diagram of the connecting unit;

[0041] Figure 7 This is a simplified diagram showing the fit of the bearing sleeve, internal spline, external spline, and spindle.

[0042] Figure 8 This is a schematic diagram of the end cap structure;

[0043] Figure 9 This is a diagram illustrating the fit between the bearing sleeve and the connecting key. Figure 1 ;

[0044] Figure 10 This is a diagram illustrating the fit between the bearing sleeve and the connecting key. Figure 2 ;

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Conical roller; 2. Gear motor; 3. Bearing sleeve; 4. Thrust bearing; 5. Cylindrical bearing; 6. External spline; 7. Flat groove; 8. Connecting key; 9. Hydraulic cylinder; 10. Bearing housing; 11. Tie rod; 12. Shift fork; 13. End cap; 15. Long groove. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0048] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0049] Example 1

[0050] The following is combined with Figures 1-7 The conical roller drive structure and method of a ring rolling mill in Example 1 are further described below, such as... Figure 1 As shown, it includes a conical roller 1, a geared motor 2, and a transmission connection part. The conical roller 1 and the geared motor 2 are mounted on a frame. The main shaft of the geared motor 2 has a hollow structure. An extension section is installed at one end of the conical roller 1. The main shaft of the geared motor 2 is coaxially engaged with the extension section of the conical roller 1 through a bushing, and the transmission connection part is used to achieve the transmission connection.

[0051] The cone roller 1 and the geared motor 2 are respectively installed on the inner and outer sides of the frame. The extension section of the cone roller 1 is located on the larger diameter circular end face of the cone roller 1, and the extension section is cylindrical.

[0052] When the cone roller 1 and the geared motor 2 are mounted on the frame, the transmission connection connects the cone roller 1 and the main shaft of the geared motor 2. When the main shaft of the geared motor 2 rotates, the torque transmitted through the transmission connection drives the cone roller 1 to rotate.

[0053] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the transmission connection part includes a bearing unit, a connecting unit, and a mating unit. The mating unit is detachably installed at one end of the extension section of the tapered roller 1. The connecting unit is inserted into the main shaft of the geared motor 2 and is detachably connected to the mating unit. The bearing unit includes a bushing, which is a bearing sleeve 3. The bushing is sleeved between the extension section of the tapered roller 1 and the main shaft of the geared motor 2 to ensure the coaxiality of the main shafts of the tapered roller 1 and the geared motor 2.

[0054] The main shaft of the geared motor 2 has a hollow structure, and its inner diameter is adapted to the outer diameter of the connecting unit, which can accommodate the connecting unit. When the tapered roller 1 and the geared motor 2 are installed on the frame, the mating unit is first installed at one end of the extension section of the tapered roller 1, and then the tapered roller 1 is pushed to drive the mating unit to move towards the geared motor 2, so that the mating unit docks with the connecting unit pre-installed in the main shaft of the geared motor 2. At the same time, the bearing unit connects the main shaft of the tapered roller 1 and the geared motor 2, keeping their centers coaxial, and ensuring the stable transmission of the tapered roller 1.

[0055] like Figure 3 As shown, the bearing unit includes a bearing sleeve assembly and several limiting assemblies. The bearing sleeve assembly is detachably installed in the frame, and the limiting assemblies are installed between the bearing sleeve assembly and the extension section of the tapered roller 1.

[0056] The bearing sleeve assembly is installed in the mounting hole at the corresponding position of the frame, and is directly opposite the connection area between the main shaft of the geared motor 2 and the extension section of the tapered roller 1. The limiting assembly is installed between the bearing sleeve assembly and the extension section of the tapered roller 1. The limiting assembly is in contact with the outer surface of the extension section of the tapered roller 1 and the inner wall of the bearing sleeve assembly.

[0057] like Figure 3 , Figure 7 As shown, the bearing sleeve assembly includes a bearing sleeve 3, two thrust bearings 4, a cylindrical bearing 5, an internal spline, and an external spline 6. The bearing sleeve 3 is an annular structure with an inner ring. Several flat grooves 7 are opened on the inner wall of one end of the inner ring of the bearing sleeve 3. The several flat grooves 7 are evenly distributed circumferentially around the central axis of the bearing sleeve 3. Several planar grooves are opened on the outer surface of one end of the extension section of the tapered roller 1. The several planar grooves are evenly distributed circumferentially along the central axis of the tapered roller 1. The thrust bearings 4 and the cylindrical bearing 5 are installed in the inner ring of the bearing sleeve 3, and the thrust bearings 4, the cylindrical bearing 5, and the bearing sleeve 3 are coaxially arranged. The two thrust bearings 4 are located on both sides of the inner ring of the bearing sleeve 3 to bear axial force. The cylindrical bearing 5 is located between the two thrust bearings 4 to support the extension section of the tapered roller 1. The internal spline is fixedly installed in the inner ring of the bearing sleeve 3 and is coaxially arranged with the bearing sleeve 3. The external spline 6 is fixedly installed on the outer circumference of the main shaft of the geared motor 2, and the internal spline and the external spline 6 form a spline fit.

[0058] The internal spline and external spline 6 are coaxially arranged to achieve stable power transmission between the main shaft of the geared motor 2 and the inner ring of the bearing sleeve 3. The torque of the main shaft is accurately transmitted to the inner ring of the bearing sleeve 3, thereby driving the conical roller 1 to rotate. The spline fit can realize the synchronous rotation of the internal spline and the inner ring of the bearing sleeve 3, while facilitating assembly and disassembly and reducing maintenance costs. The diameter of the extension section of the conical roller 1 is adapted to the inner ring of the bearing sleeve 3, and its length meets the requirements for positioning when inserted into the inner ring of the bearing sleeve 3. After the extension section of the conical roller 1 is inserted into the inner ring of the bearing sleeve 3, it cooperates with the inner ring of the cylindrical bearing 5 in the inner ring of the bearing sleeve 3. The cylindrical bearing 5 is responsible for supporting the extension section and realizing the flexible rotation of the conical roller 1. The thrust bearing 4 is responsible for bearing the axial force of the conical roller 1 and preventing the axial movement of the extension section of the conical roller 1. The number of flat grooves 7 is the same as that of the planar grooves.

[0059] Several screw holes are opened on the other end face of the bearing sleeve 3. Several screw holes are also opened in the mounting hole of the frame. A bolt is passed through two screw holes that are on the same axis and aligned with each other. The bearing sleeve 3 is installed in the mounting hole in the frame to fix the bearing sleeve. The thrust bearing 4 and the cylindrical bearing 5 are installed in the inner ring of the bearing sleeve 3. The main shaft of the geared motor 2 drives the external spline 6 to move in the direction of the internal spline. The external spline 6 and the internal spline form a spline engagement. At the same time, the extension section of the tapered roller 1 is inserted into the inner ring of the bearing sleeve 3. The limiting component is located between the tapered roller 1 and the inner ring of the bearing sleeve 3. A set of limiting components is installed between a flat groove 7 in the inner ring of the bearing sleeve 3 and the flat groove of the tapered roller 1. They are respectively in contact with the inner wall of the tapered roller 1 and the inner ring of the bearing sleeve 3, restricting the relative circumferential rotation between the extension section of the tapered roller 1 and the inner ring of the bearing sleeve 3, and improving the transmission stability.

[0060] like Figure 3 As shown, the limiting component includes a connecting key 8, and threaded holes are provided on the top surface of the connecting key 8 and the bottom surface of the flat groove 7.

[0061] The threaded hole on the flat groove 7 passes through the inner ring of the bearing sleeve 3. After the connecting key 8 is placed in the flat groove 7 inside the inner ring of the bearing sleeve 3, a bolt is passed through two threaded holes on the same axis. First, the bolt passes through the threaded hole on the flat groove 7, and then it is screwed into the threaded hole on the connecting key 8. The connecting key 8 is installed inside the inner ring of the bearing sleeve 3. That is, the connecting key 8 is located between the tapered roller 1 and the inner wall of the inner ring of the bearing sleeve 3. The connecting key 8 is located between the flat groove 7 and the flat groove inside the inner ring of the bearing sleeve 3, and it fits against the inner wall of the flat groove 7 and the inner wall of the flat groove. The connecting key 8 can prevent the tapered roller 1 from shaking and increase stability.

[0062] like Figure 4 As shown, the connection unit includes a pushing component and a locking component. The pushing component is detachably mounted on the main shaft of the geared motor 2, and the locking component is connected to the pushing component.

[0063] The push assembly is mounted on the main shaft of the geared motor 2, the locking assembly is connected to the mating unit, and the mating unit is connected to the extension section of the cone roller 1. When the main shaft of the geared motor 2 rotates, it drives the connecting unit to rotate. Through the transmission of the push assembly, the locking assembly, and the mating unit, the cone roller 1 is driven to rotate.

[0064] like Figure 5 As shown, the pushing assembly includes a hydraulic cylinder 9 and a bearing seat 10. The bearing seat 10 is sleeved on the outer periphery of the main shaft of the geared motor 2 and is fixedly connected to the main shaft, and rotates synchronously with the main shaft. The fixed end of the hydraulic cylinder 9 is fixedly connected to the bearing seat 10, and the hydraulic cylinder 9 and the bearing seat 10 are coaxially arranged.

[0065] The bearing housing 10 is installed on the main shaft of the geared motor 2, and then the bearing housing 10 is fixedly connected to the oil cylinder 9 to ensure coaxial arrangement. The oil cylinder 9 is driven to rotate by the main shaft of the geared motor 2. The end of the oil cylinder 9 is connected to a rotary joint, and the rotary joint is connected to the oil port of the oil cylinder 9 to realize oil supply operation when the oil cylinder 9 rotates.

[0066] like Figure 6 As shown, the locking assembly includes a pull rod 11 and a shift fork 12. One end of the pull rod 11 is fixedly connected to the moving end of the hydraulic cylinder 9, and the shift fork 12 is fixedly installed on the other end of the pull rod 11.

[0067] The shift fork 12 is a rectangular long strip structure that can be locked with the mating unit. The pull rod 11 and the shift fork 12 move with the moving end of the oil cylinder 9. After moving, the shift fork 12 is connected to the mating unit and locked with the mating unit, realizing the transmission connection between the cone roller 1 and the main shaft of the reduction motor 2.

[0068] like Figure 5 As shown, the mating unit includes an end cap 13. Several threaded holes are opened at one end of the end cap 13 and at one end of the extension section of the cone roller 1. Bolts pass through two threaded holes on the same axis to fix the end cap 13 to one end of the extension section of the cone roller 1. A placement groove is opened at one end of the extension section of the cone roller 1, and an elongated groove 15 is opened at one end of the end cap 13. The shift fork 12 passes through the elongated groove 15 and enters the placement groove.

[0069] The placement groove has a circular structure. First, the end cap 13 is fixedly installed on one end of the extension section of the tapered roller 1. Then, the bearing seat 10 is fixedly installed on the main shaft of the geared motor 2. Subsequently, the moving end of the control cylinder 9 extends, driving the pull rod 11 and the shift fork 12 to move towards the end cap 13. The shift fork 12 passes through the long groove 15 and enters the placement groove. Then, the pull rod 11, the cylinder 9, and the shift fork 12 rotate 90 degrees around the axis. At this time, the shift fork 12 and the long groove 15 are in a mutually perpendicular state and arranged in a cross shape. Then, the cylinder 9 is fixedly connected to the bearing seat 10. The two ends of the shift fork 12 are limited by the end face of the end cap 13. The shift fork 12 is kept in the placement groove, realizing the locking connection.

[0070] A method for driving a conical roller in a ring rolling mill, employing the aforementioned conical roller drive structure, comprises the following steps:

[0071] Step 1: Pre-installation and positioning of the transmission mechanism:

[0072] The tapered roller 1 and the geared motor 2 are respectively fixed to the inner and outer sides of the frame, so that the cylindrical extension section of the larger diameter end of the tapered roller 1 faces the hollow main shaft of the geared motor 2, ensuring that their central axes are coaxial; after pre-installing two thrust bearings 4 and one cylindrical bearing 5 on the bearing sleeve 3, the bearing sleeve assembly is fixed in the frame mounting hole by bolts through the corresponding screw holes of the bearing sleeve 3 and the frame mounting hole, ensuring that the bearing sleeve 3 is coaxial with the main shaft of the geared motor 2 and the extension section of the tapered roller 1;

[0073] Step 2: Connecting the spline drive pair:

[0074] When the main shaft of the geared motor 2 is started to rotate at low speed, the external spline 6 fixed on its outer circumference moves towards the inner spline of the inner ring of the bearing sleeve 3. The external spline 6 and the inner spline of the inner hole of the bearing sleeve 3 are circumferentially aligned, smoothly inserted axially and fully engaged, so that the external spline 6 and the inner spline are precisely engaged to form a spline fit, thereby realizing the torque transmission connection between the main shaft of the geared motor 2 and the bearing sleeve 3.

[0075] Step 3: Limiting the transmission between the tapered roller and the bearing sleeve:

[0076] Push the tapered roller 1 so that the extension of the tapered roller 1 extends into the inner ring of the bearing sleeve 3 and precisely matches the inner ring of the cylindrical bearing 5 inside the bearing sleeve 3; place the connecting key 8 between the flat groove 7 of the inner ring of the bearing sleeve 3 and the flat groove of the extension of the tapered roller 1, and fix the connecting key 8 in place by bolting through the corresponding threaded holes of the flat groove 7 and the connecting key 8, thereby restricting the relative circumferential rotation between the tapered roller 1 and the bearing sleeve 3;

[0077] Step 4: Connect the mating unit with the locking assembly:

[0078] The end cap 13 is fixed to one end of the extension section of the tapered roller 1 with bolts, so that the long groove 15 of the end cap 13 is precisely connected with the circular placement groove of the extension section of the tapered roller 1; the bearing seat 10 is sleeved on the outer periphery of the main shaft of the geared motor 2, and the oil cylinder 9 is pre-fixed to the bearing seat 10 to ensure that the oil cylinder 9 and the bearing seat 10 are coaxial.

[0079] Step 5: Locking the locking components:

[0080] The moving end of the control cylinder 9 extends, pushing the pull rod 11 and the shift fork 12 towards the end cover 13, so that the shift fork 12 passes through the long slot 15 of the end cover 13 and extends into the placement slot of the tapered roller 1; the pull rod 11, the cylinder 9 and the shift fork 12 are rotated 90° around the axis, so that the shift fork 12 and the long slot 15 of the end cover 13 are in a cross-perpendicular state, realizing the locking of the tapered roller 1 and the transmission mechanism of the reduction motor 2, and at this time the bearing seat 10 is fixedly installed on the main shaft of the reduction motor 2;

[0081] Step Six: Start the transmission:

[0082] When the geared motor 2 is started, its main shaft rotates and transmits torque to the bearing sleeve 3 through the meshing of the external spline 6 and the internal spline. The bearing sleeve 3 drives the tapered roller 1 to rotate synchronously through the circumferential limiting action of the connecting key 8. During the transmission process, the two thrust bearings 4 bear the axial force of the tapered roller 1, and the cylindrical bearing 5 provides radial support to the extension section of the tapered roller 1 to ensure that the tapered roller 1 rotates smoothly and realizes the transmission of the ring rolling operation.

[0083] Step 7: Disconnect the transmission:

[0084] When maintenance is required, turn off the geared motor 2, rotate the pull rod 11 and the shift fork 12 in the opposite direction until they are aligned with the long groove 15 of the end cover 13, control the moving end of the hydraulic cylinder 9 to retract, drive the shift fork 12 out of the placement groove, and release the lock; then separate the cone roller 1 from the bearing sleeve 3, and the geared motor 2 from the bearing sleeve assembly to complete the disassembly of the transmission mechanism.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A conical roller drive structure for a ring rolling mill, characterized in that, The device includes a conical roller (1), a geared motor (2), and a transmission connection part. The conical roller (1) and the geared motor (2) are mounted on a frame. The main shaft of the geared motor (2) has a hollow structure. An extension section is installed at one end of the conical roller (1). The main shaft of the geared motor (2) is coaxially engaged with the extension section of the conical roller (1) through a bushing, and the transmission connection part is used to achieve the transmission connection. The transmission connection part includes a bearing unit, a connecting unit, and a mating unit. The mating unit is detachably installed at one end of the extension section of the conical roller (1). The connecting unit is inserted into the main shaft of the geared motor (2) and is detachably connected to the mating unit. The bearing unit includes a bushing, which is a bearing sleeve (3). The bushing is sleeved on the extension section of the conical roller (1) and the geared motor (2). 2) Between the main shafts, to ensure the coaxiality of the main shafts of the tapered roller (1) and the geared motor (2); the bearing unit includes a bearing sleeve assembly and several limiting components. The bearing sleeve assembly is detachably installed in the frame, and the limiting components are installed between the bearing sleeve assembly and the extension section of the tapered roller (1); the bearing sleeve assembly includes a bearing sleeve (3), and also includes two thrust bearings (4), a cylindrical bearing (5), an inner spline, and an outer spline (6). The bearing sleeve (3) is an annular structure with an inner ring. Several flat grooves (7) are opened on the inner wall of one end of the inner ring of the bearing sleeve (3). The several flat grooves (7) are evenly distributed circumferentially around the central axis of the bearing sleeve (3). Several planar grooves are opened on the outer surface of one end of the extension section of the tapered roller (1). The planar grooves are evenly distributed circumferentially along the central axis of the conical roller (1). Thrust bearings (4) and cylindrical bearings (5) are installed in the inner ring of the bearing sleeve (3), and the thrust bearings (4), cylindrical bearings (5), and bearing sleeve (3) are coaxially arranged. The two thrust bearings (4) are located on both sides of the inner ring of the bearing sleeve (3), and the cylindrical bearings (5) are located between the two thrust bearings (4). The inner spline is fixedly installed in the inner ring of the bearing sleeve (3), and the inner spline is coaxially arranged with the bearing sleeve (3). The outer spline (6) is fixedly installed on the outer circumference of the main shaft of the geared motor (2), and the inner spline and the outer spline (6) form a spline fit. The limiting component includes a connecting key (8), and the top surface of the connecting key (8) and the bottom surface of the flat groove (7) are both A threaded hole is provided; the connecting unit includes a pushing component and a locking component. The pushing component is detachably installed on the main shaft of the geared motor (2), and the locking component is connected to the pushing component; the pushing component includes a hydraulic cylinder (9) and a bearing seat (10). The bearing seat (10) is sleeved on the outer circumference of the main shaft of the geared motor (2) and fixedly connected to the main shaft, and rotates synchronously with the main shaft. The fixed end of the hydraulic cylinder (9) is fixedly connected to the bearing seat (10), and the hydraulic cylinder (9) and the bearing seat (10) are coaxially arranged; the locking component includes a pull rod (11) and a shift fork (12). One end of the pull rod (11) is fixedly connected to the moving end of the hydraulic cylinder (9), and the shift fork (12) is fixedly installed on the other end of the pull rod (11);The mating unit includes an end cap (13). Several threaded holes are opened at one end of the end cap (13) and at one end of the extension section of the conical roller (1). Bolts pass through two threaded holes on the same axis to fix the end cap (13) to one end of the extension section of the conical roller (1). A placement groove is opened at one end of the extension section of the conical roller (1), and an elongated groove (15) is opened at one end of the end cap (13). The shift fork (12) passes through the elongated groove (15) and enters the placement groove.

2. A method for driving a conical roller in a ring rolling mill, characterized in that, The transmission steps using the conical roller drive structure of the ring rolling mill as described in claim 1 are as follows: Step 1: Pre-installation and positioning of the transmission mechanism: The tapered roller (1) and the geared motor (2) are respectively fixed on the inner and outer sides of the frame, so that the cylindrical extension section of the larger diameter end of the tapered roller (1) faces the hollow main shaft of the geared motor (2) to ensure that the central axes of the two are coaxial; after pre-installing two thrust bearings (4) and one cylindrical bearing (5) on the bearing sleeve (3), the bearing sleeve assembly is fixed in the frame mounting hole by bolts through the corresponding screw holes of the bearing sleeve (3) and the frame mounting hole, ensuring that the bearing sleeve (3) is coaxial with the main shaft of the geared motor (2) and the extension section of the tapered roller (1); Step 2: Connecting the spline drive pair: When the main shaft of the geared motor (2) is started to rotate at low speed, the external spline (6) fixed on its outer circumference moves towards the inner spline of the inner ring of the bearing sleeve (3). The external spline (6) and the inner spline of the inner hole of the bearing sleeve (3) are aligned circumferentially, smoothly inserted axially and fully engaged, so that the external spline (6) and the inner spline are precisely engaged to form a spline fit, thereby realizing the torque transmission connection between the main shaft of the geared motor (2) and the bearing sleeve (3). Step 3: Limiting the transmission between the tapered roller and the bearing sleeve: Push the tapered roller (1) so that the extension of the tapered roller (1) extends into the inner ring of the bearing sleeve (3) and precisely matches the inner ring of the cylindrical bearing (5) inside the bearing sleeve (3); place the connecting key (8) between the flat groove (7) of the inner ring of the bearing sleeve (3) and the flat groove of the extension of the tapered roller (1), and fix the connecting key (8) in place by passing a bolt through the corresponding threaded hole of the flat groove (7) and the connecting key (8), thereby restricting the relative circumferential rotation between the tapered roller (1) and the bearing sleeve (3); Step 4: Connect the mating unit with the locking assembly: The end cap (13) is fixed to one end of the extension section of the tapered roller (1) by bolts, so that the long groove (15) of the end cap (13) is precisely connected to the circular placement groove of the extension section of the tapered roller (1); the bearing seat (10) is fitted onto the outer circumference of the main shaft of the geared motor (2), and the oil cylinder (9) is pre-fixed to the bearing seat (10) to ensure that the oil cylinder (9) and the bearing seat (10) are coaxial; Step 5: Locking the locking components: Extend the moving end of the control cylinder (9) to push the pull rod (11) and the shift fork (12) toward the end cover (13), so that the shift fork (12) passes through the long groove (15) of the end cover (13) and extends into the placement groove of the cone roller (1); rotate the pull rod (11), the cylinder (9) and the shift fork (12) around the axis by 90° so that the shift fork (12) and the long groove (15) of the end cover (13) are in a cross-perpendicular state, thereby locking the cone roller (1) with the transmission mechanism of the geared motor (2), and at this time, fix the bearing seat (10) onto the main shaft of the geared motor (2); Step Six: Start the transmission: Start the geared motor (2), its main shaft rotates and transmits torque to the bearing sleeve (3) through the meshing of the external spline (6) and the internal spline; the bearing sleeve (3) drives the cone roller (1) to rotate synchronously through the circumferential limiting effect of the connecting key (8); during the transmission process, the two thrust bearings (4) bear the axial force of the cone roller (1), and the cylindrical bearing (5) provides radial support to the extension section of the cone roller (1) to ensure that the cone roller (1) rotates smoothly and realizes the transmission of the ring rolling operation; Step 7: Disconnect the transmission: When maintenance is required, turn off the geared motor (2), rotate the pull rod (11) and the shift fork (12) in the opposite direction until they are aligned with the long groove (15) of the end cover (13), control the moving end of the hydraulic cylinder (9) to retract, drive the shift fork (12) out of the placement groove, and release the lock; then separate the cone roller (1) from the bearing sleeve (3), the geared motor (2) from the bearing sleeve assembly, and complete the disassembly of the transmission mechanism.

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