Ring rolling machine
Through the design of the tilt installation motor and transition connection plate, the rigidity of the chassis of the roller roller reducer is enhanced, and the maze structure and dual bearing components are adopted to solve the problem of easy deformation and easy seal damage of the reducer, achieving efficient meshing stability and low-cost maintenance.
Patent Information
- Application Number
- CN202422365683.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The reducer case of the traditional ring roller is prone to deformation, resulting in unstable engagement, and the sealing structure is prone to damage, which has high maintenance costs, making it difficult to meet the needs of high-power equipment.
The motor is installed inclined and fixed reducer with a transition connection plate and positioning member, which enhances the box stiffness and adopts a maze structure and a dual bearing design to improve engagement stability and seal reliability.
It improves the stiffness of the reducer case, reduces deformation, extends service life, reduces maintenance costs, and improves the reliability and maintenance efficiency of equipment.
Smart Images
Figure CN223129227U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical transmission, and particularly relates to a ring rolling mill. Background Art
[0002] The ring rolling mill is mainly used for rolling ring-shaped metal parts. Compared with traditional rotary forging, its precision, efficiency and economy are significantly improved. With the rapid development of industries such as power transmission and wind power installation towers, the demand for ring-shaped installation base parts with a diameter exceeding 10m is increasing. The traditional rotary forging mode cannot meet the large-scale supply demand, so it is necessary to accelerate the development of high-power ring rolling mills to solve the equipment replacement speed brought about by market development.
[0003] The ring rolling mill is mainly equipped with a main reducer and upper and lower conical roller reducers. The upper and lower conical roller reducers are generally suspended and installed on the frame at an inclination of ±15°. The motor is suspended at the input end of the reducer and supported by a bracket. The reducer is suspended on the frame, and the motor is suspended on the reducer. The overall weight reaches more than 30 tons, resulting in that the reducer not only needs to transmit torque but also bear its own and the motor's weight. The reducer may have large deformation, making operation, installation and maintenance difficult. The reliability of the whole machine is not high, and the deformation of the box body for installing the reducer may occur under long-term use, thus affecting the meshing smoothness of the reducer. Moreover, in the existing reducer design, its sealing structure mostly adopts contact-type skeleton seals, with low service life of the seals and high maintenance costs. When the power is increased, the assembly and disassembly design of the original reducer structure is unreasonable, and it is not easy to maintain and replace damaged parts.
[0004] Therefore, how to design a ring rolling mill to at least partially solve the above drawbacks is a technical problem that those skilled in the art need to solve at present. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a ring rolling mill, which can improve the stiffness of the reducer box body, reduce the deformation of the box body, improve the meshing smoothness of the reducer, and thus improve the service life of the reducer.
[0006] To achieve the above purpose, the utility model provides a ring rolling mill, comprising:
[0007] A motor frame with a motor installed on the top, and the output end of the motor is inclined with respect to the horizontal plane;
[0008] A reducer, with a box body on the outside. The box body includes a left box body for connecting to the main frame and a right box body for connecting to the motor frame. The input end of the reducer is connected to the output end of the motor through a coupling;
[0009] The transition connecting plate is arranged between the right box body and the motor frame. The transition connecting plate is provided with a first through hole and a second through hole. The right box body is provided with a third through hole corresponding to the first through hole for the penetration of the first positioning member, and the motor frame is provided with a fourth through hole corresponding to the second through hole for the penetration of the second positioning member. The transition connecting plate is further provided with a positioning table capable of abutting against the bottom of the motor frame.
[0010] Preferably, the speed reducer includes an input shaft system, a second shaft system meshing with the input shaft system, a third shaft system meshing with the second shaft system, and an output shaft system meshing with the third shaft system. An output spline for transmitting torque to the main machine is provided at one end of the output shaft system away from the right box body.
[0011] Preferably, the left box body includes a box body main body and an extension part connected to each other. The extension part is located between the box body main body and the main machine and is used for accommodating the output spline.
[0012] Preferably, a first bearing assembly and a second bearing assembly are provided on the output shaft system. The first bearing assembly and the second bearing assembly are oppositely arranged on two side walls of the box body main body, and the right box body is provided with a receiving groove for accommodating the second bearing assembly.
[0013] Preferably, the first bearing assembly includes a first bearing seat, and the first bearing seat is detachably connected to the box body main body through a first connecting member; the second bearing assembly includes a second bearing seat, and the second bearing seat is detachably connected to the right box body through a second connecting member.
[0014] Preferably, the first bearing assembly further includes a first bearing. A first end cover for fixing the first bearing assembly is provided at the outer end of the first bearing seat. The first end cover is provided with a first cavity for collecting the lubricating oil flowing out along the first bearing. An annular blocking member extending towards the output shaft system is provided in the first end cover to divide the first cavity into an adjacent first accommodation space and a second accommodation space. An oil return main channel arranged at an angle to the output shaft system, a first channel communicating the oil return main channel with the first accommodation space, and a second channel communicating the oil return main channel with the second accommodation space are provided on the first bearing seat.
[0015] Preferably, a third bearing assembly is provided at the neck of the input shaft system. Both the third bearing assembly and the second bearing assembly include a second bearing, an oil slinger abutting against the inner ring of the second bearing, and an oil separating ring abutting against the outer ring of the second bearing. The oil separating ring includes a blocking ring extending inwards to the outer periphery of the oil slinger.
[0016] Preferably, the neck of the input shaft system is provided with a third end cover for fixing the third bearing assembly, and the output shaft system is provided with a second end cover for fixing the second bearing assembly, and the third end cover and the second end cover are both provided with a first protrusion on the side facing the retaining ring, and the outer circumferential wall of the oil slinger ring is provided with a bending structure, the bending structure includes a first bending portion extending radially and a second bending portion connected to the end of the first bending portion facing away from the oil slinger ring, and the second bending portion extends to the outer periphery of the first protrusion, and the outer sides of the third end cover and the second end cover are both provided with sealing members.
[0017] Preferably, the third bearing in the third bearing assembly is specifically a tapered roller bearing, and the second bearing in the second bearing assembly is specifically a cylindrical roller bearing.
[0018] Preferably, a first rib plate for reinforcing the strength of the box body is provided between the box body and the extension portion, and a second rib plate for reinforcing the strength of the box body is provided at the top and bottom of the box body.
[0019] Compared with the above-mentioned background technology, the ring rolling machine provided by the utility model includes a motor frame, a reducer and a transition connecting plate. A motor is installed on the top of the motor frame, and the output end of the motor is inclined compared to the horizontal plane; a box body is provided on the outside of the reducer, and the box body includes a left box body for connecting to the main frame and a right box body for connecting to the motor frame. The input end of the reducer is connected to the output end of the motor through a coupling; the transition connecting plate is arranged between the right box body and the motor frame, and a first through hole and a second through hole are provided on the transition connecting plate, and the right box body is provided with a third through hole corresponding to the first through hole for the penetration of the first positioning member, and the motor frame is provided with a fourth through hole corresponding to the second through hole for the penetration of the second positioning member, and the transition connecting plate is also provided with a positioning platform that can abut against the bottom of the motor frame.
[0020] Specifically, the motor is installed obliquely to the motor frame, and the output end of the motor is connected to the reducer. The transition connecting plate is fixed relative to the right box body outside the reducer by the penetration of the first positioning piece. Then, the transition connecting plate is fixed relative to the motor frame by the penetration of the second positioning piece, so that the right box body is installed to the preset position of the motor frame. A positioning platform that can abut the bottom of the motor frame is also provided on the transition connecting plate, so that the combined gravity fulcrum of the reducer and the outer box body is lowered, reducing the bending deformation of the outer box body of the reducer under stress, which can improve the rigidity of the reducer case, improve the meshing stability of the reducer, and thus improve the service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.
[0022] Figure 1 Structural schematic diagram of the ring rolling machine provided by the embodiment of the present invention;
[0023] Figure 2 Structural sectional view of the speed reducer provided by the embodiment of the present invention;
[0024] Figure 3 Structural schematic diagram of the speed reducer provided by the embodiment of the present invention;
[0025] Figure 4 Structural sectional view during the installation of the transition connecting plate provided by the embodiment of the present invention;
[0026] Figure 5 Structural schematic diagram of the cooperation between the oil slinger and the oil separator ring provided by the embodiment of the present invention;
[0027] Figure 6 Structural schematic diagram of the first bearing housing and the second bearing housing provided by the embodiment of the present invention;
[0028] Figure 7 For Figure 6 Partial enlarged view.
[0029] Wherein:
[0030] 100 - Motor;
[0031] 200 - Motor frame, 210 - Second positioning member;
[0032] 300 - Speed reducer, 310 - Coupling, 320 - Input shaft system, 330 - Second shaft system, 340 - Third shaft system, 350 - Output shaft system, 360 - Output spline;
[0033] 410 - Left housing, 411 - Housing body, 412 - Extension part, 413 - First rib plate, 414 - Second rib plate, 415 - Fixing hole, 420 - Right housing, 421 - First positioning member, 422 - Accommodating groove;
[0034] 500 - Transition connecting plate, 510 - Positioning table;
[0035] 610 - First bearing housing, 611 - Main oil return passage, 612 - First passage, 613 - Second passage, 620 - First bearing, 630 - First end cover, 640 - First cavity, 641 - First accommodation space, 642 - Second accommodation space, 650 - Stopper;
[0036] 710 - Second bearing, 720 - Oil slinger, 721 - Bent structure, 7211 - First bent portion, 7212 - Second bent portion, 730 - Oil separation ring, 731 - Retaining ring, 740 - Second end cover, 741 - First protrusion, 750 - Seal, 760 - Second bearing housing;
[0037] 810 - Third bearing, 820 - Third end cover. Detailed implementation manners
[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0039] In order to enable those skilled in the art in the technical field to better understand the solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.
[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.
[0041] The purpose of the present utility model is to provide a ring rolling machine, which can improve the stiffness of the housing of the speed reducer 300, reduce the deformation of the housing, improve the meshing smoothness of the speed reducer 300, and further improve the service life of the speed reducer 300.
[0042] Please refer to Figure 1 , to achieve the above purpose, the present utility model provides a ring rolling machine, including a motor frame 200, a speed reducer 300, and a transition connection plate 500.
[0043] The motor 100 is installed at the top of the motor frame 200, and the output end of the motor 100 is inclined with respect to the horizontal plane. The housing of the motor 100 is detachably fixed to the motor frame 200 through a connecting member. Among them, the inclination angle of the output end of the motor 100 with respect to the horizontal plane is preferably ±15°. The connecting member can be a bolt or the like, as long as the above object can be achieved.
[0044] A housing is provided outside the speed reducer 300. The housing includes a left housing 410 for connecting to the main frame and a right housing 420 for connecting to the motor frame 200. The input end of the speed reducer 300 is connected to the output end of the motor 100 through a coupling 310, and the speed reducer 300 is fixed to the main frame and the motor frame 200 through the housing to relatively fix its own position.
[0045] Please refer to Figure 4 , a transition connecting plate 500 is arranged between the right housing 420 and the motor frame 200. The transition connecting plate 500 is provided with a first through hole and a second through hole. The right housing 420 is provided with a third through hole corresponding to the first through hole for the penetration of a first positioning member 421. The motor frame 200 is provided with a fourth through hole corresponding to the second through hole for the penetration of a second positioning member 210. The transition connecting plate 500 is further provided with a positioning table 510 that can abut against the bottom of the motor frame 200.
[0046] It can be understood that for the provided first through hole and the third through hole, by penetrating the first positioning member 421, the relative positions of the transition connecting plate 500 and the right housing 420 can be positioned, and then the transition connecting plate 500 and the right housing 420 can be stably connected through bolts; for the provided second through hole and the fourth through hole, by penetrating the second positioning member 210, the relative positions of the transition connecting plate 500 and the motor frame 200 can be positioned, and then the transition connecting plate 500 and the motor frame 200 can be stably connected through bolts.
[0047] The motor 100 is inclined and installed on the motor frame 200. The output end of the motor 100 is connected to a speed reducer 300. By penetrating the first positioning member 421, the position of the transition connecting plate 500 is fixed relative to the right housing 420 outside the speed reducer 300. Then, by penetrating the second positioning member 210, the position of the transition connecting plate 500 is fixed relative to the motor frame 200, so that the right housing 420 is installed at a preset position on the motor frame 200. The transition connecting plate 500 is further provided with a positioning table 510 that can abut against the bottom of the motor frame 200, so that the combined gravity fulcrum of the speed reducer 300 and the outer housing is lower, reducing the bending deformation of the outer housing of the speed reducer 300 due to stress, improving the stiffness of the housing of the speed reducer 300, improving the meshing smoothness of the speed reducer 300, and further improving the service life of the speed reducer 300.
[0048] It should be noted that the left housing 410 is close to the main machine, and a plurality of fixing holes 415 are provided on the left housing 410. By passing fixing members through the fixing holes 415, the left housing 410 is fixedly connected to the main machine, so that the motor 100 and the speed reducer 300 are fixed relative to the main machine.
[0049] Please refer to Figure 2 , wherein, the speed reducer 300 includes an input shaft system 320, a second shaft system 330 meshing with the input shaft system 320, a third shaft system 340 meshing with the second shaft system 330, and an output shaft system 350 meshing with the third shaft system 340. An output spline 360 for transmitting torque to the main machine is provided at one end of the output shaft system 350 facing away from the right housing 420.
[0050] Power is output by the motor 100, enters the input shaft system 320 of the speed reducer 300 through the coupling 310, and after being decelerated by the second shaft system 330, the third shaft system 340 and the output shaft system 350, the torque is transmitted to the main machine by the output spline 360, completing the power transmission process of the speed reducer 300. The coupling 310 adopts an elastic coupling.
[0051] Please refer to Figure 3 , in this embodiment, the left housing 410 includes a housing body 411 and an extension portion 412 connected to each other. The extension portion 412 is located between the housing body 411 and the main machine and is used to accommodate the output spline 360. Considering that the speed reducer 300 adopts a suspension installation method and the housing is easily deformed by gravity, a first rib plate 413 for strengthening the housing strength is provided between the housing body 411 and the extension portion 412, and second rib plates 414 for strengthening the housing strength are provided at the top and bottom of the housing body 411. The overall housing and the arrangement of the first rib plate 413 and the second rib plate 414 are used to enhance the stiffness of the housing, reducing the weight of the speed reducer 300 compared to the conventional intermediate parting surface housing, and at the same time ensuring sufficient connection strength for the connection between the motor 100 and the speed reducer 300.
[0052] Considering that the speed reducer 300 of the present application is increased from two-stage reduction to three-stage reduction, both the power and the reduction ratio of the speed reducer 300 are larger than those of the speed reducer 300 in the existing ring rolling machine. After the output torque of the speed reducer 300 is increased, the bearings are correspondingly enlarged, resulting in interference between the bearings of the output shaft system 350 of the speed reducer 300 and its output large gear, and it is impossible to assemble and disassemble in sequence.
[0053] Please refer to Figure 6 and Figure 7, in this embodiment, preferably, a first bearing assembly and a second bearing assembly are provided on the output shaft system 350. The first bearing assembly and the second bearing assembly are oppositely arranged on two side walls of the box body 411. The right box body 420 is provided with a receiving groove 422 for receiving the second bearing assembly; the first bearing assembly includes a first bearing seat 610, and the first bearing seat 610 is detachably connected to the box body 411 through a first connecting member; the second bearing assembly includes a second bearing seat 760, and the second bearing seat 760 is detachably connected to the right box body 420 through a second connecting member. The double-bearing seat structure can ensure that when the reducer 300 is assembled and disassembled, the right box body 420 can be integrally installed on the right side of the reducer 300, which is convenient for improving the assembly, disassembly and installation efficiency of the reducer 300.
[0054] The first bearing assembly further includes a first bearing 620. An outer end of the first bearing seat 610 is provided with a first end cover 630 for fixing the first bearing assembly. The first end cover 630 is provided with a first cavity 640 for collecting lubricating oil flowing out along the first bearing 620. An annular blocking member 650 extending towards the output shaft system 350 is arranged inside the first end cover 630 to divide the first cavity 640 into adjacent first accommodation space 641 and second accommodation space 642. Annular partition members radially extending towards the outside of the output shaft system 350 are arranged in both the first accommodation space 641 and the second accommodation space 642. A labyrinth is formed by the annular blocking member 650 and the annular partition members to slow down the transfer speed of the lubricating oil in the first cavity 640.
[0055] A main oil return channel 611 arranged at an angle with the output shaft system 350, a first channel 612 communicating the main oil return channel 611 with the first accommodation space 641, and a second channel 613 communicating the main oil return channel 611 with the second accommodation space 642 are provided on the first bearing seat 610. Through the labyrinth and the inclined-plane oil return device (the main oil return channel 611, the first channel 612, the second channel 613), it is ensured that the reducer 300 has reliable sealing and no wear in the inclined installation, high-temperature and humid environments, the service life of the reducer 300 is improved, and the maintenance cost is reduced.
[0056] Please refer to Figure 5 and Figure 7 , in this embodiment, a third bearing assembly is provided on the neck of the input shaft system 320. Both the third bearing assembly and the second bearing assembly include a second bearing 710, an oil slinger 720 abutting against the inner ring of the second bearing 710, and an oil separating ring 730 abutting against the outer ring of the second bearing 710. The oil separating ring 730 includes a retaining ring 731 extending inwards to the outer periphery of the oil slinger 720. A small gap is formed between the retaining ring 731 and the oil slinger 720 by the retaining ring 731 extending inwards to the outer periphery of the oil slinger 720, preventing the lubricating oil from quickly flowing from the second bearing 710 to the side of the retaining ring 731 away from the second bearing 710.
[0057] Among them, the neck of the input shaft system 320 is provided with a third end cover 820 for fixing the third bearing assembly, and the output shaft system 350 is provided with a second end cover 740 for fixing the second bearing assembly. The third end cover 820 and the second end cover 740 are both provided with a first protrusion 741 on the side facing the retaining ring 731, and the outer circumferential wall of the oil slinger 720 is provided with a bending structure 721, and the bending structure 721 includes a radially extending first bending portion 7211 and a second bending portion 7212 connected to the end of the first bending portion 7211 away from the oil slinger 720, and the second bending portion 7212 extends to the outer periphery of the first protrusion 741, and the outer sides of the third end cover 820 and the second end cover 740 are both provided with a sealing member 750.
[0058] The first bending portion 7211 and the second bending portion 7212 are bent relative to each other, and the second bending portion 7212 extends to the outer periphery of the first protrusion 741, so that the first bending portion 7211 and the retaining ring 731 form a labyrinth structure, and the second bending portion 7212 extends to the outer periphery of the first protrusion 741, thereby further improving the sealing effect of the labyrinth structure. By providing a seal 750 on the outer sides of the third end cover 820 and the second end cover 740, the seal 750 is V-shaped, and one end of the seal 750 is inserted into a smaller gap between the third end cover 820 and the input shaft system 320 or between the second end cover 740 and the output shaft system 350, it is possible to prevent the lubricating oil from flowing out along the gap. Through the sealing technology combining a small mechanical gap, a labyrinth structure and a V-shaped sealing ring, the reducer 300 can be installed at an angle of ±15° to ensure that the internal lubricating oil does not leak, external moisture cannot enter, and the seal is free of wear, thereby improving the service life of the reducer 300 and reducing the maintenance cost of replacing the skeleton seal.
[0059] In addition, the third bearing 810 in the third bearing assembly is specifically a tapered roller bearing, and the second bearing 710 in the second bearing assembly is specifically a cylindrical roller bearing.
[0060] In summary, for the ring rolling mill provided by the present application, the input shaft system 320 and the output shaft system 350 of the speed reducer 300 adopt a combined sealing structure of an oil slinger 720, an oil separator ring 730 and a seal 750, which improves the sealing reliability of the speed reducer 300 and reduces the maintenance cost; the integral housing setting of the speed reducer 300 improves the stiffness of the housing, reduces the deformation of the housing, improves the meshing smoothness of the speed reducer 300 and extends the service life of the speed reducer 300 through the positioning settings of the first positioning member 421, the second positioning member 210 and the transition connecting plate 500; the output shaft system 350 of the speed reducer 300 adopts a double bearing seat setting, which can ensure that when the speed reducer 300 is assembled and disassembled, the right housing 420 assembly can be integrally installed or lifted from the lower housing assembly, facilitating the assembly efficiency and disassembly difficulty of the speed reducer 300 and improving the assemblability and maintainability of the speed reducer 300; the first rib plate 413 and the second rib plate 414 are used to enhance the stiffness of the housing, reducing the weight of the speed reducer 300 compared with the conventional intermediate parting surface housing, and at the same time ensuring sufficient connection strength between the motor 100 and the speed reducer 300; the settings of the annular spacer, the annular stopper 650, the main oil return passage 611, the first passage 612 and the second passage 613 adopted by the output shaft system 350 of the speed reducer 300 ensure reliable sealing of the speed reducer 300 in an inclined installation, high-temperature and humid environment, extend the service life of the speed reducer 300 and reduce the maintenance and use cost; with such settings, a ring rolling mill that is easy to assemble and maintain and has reliable sealing is provided to solve the problems of difficult assembly and disassembly of the original speed reducer 300 and easy wear and damage of the seal, and improve the overall stiffness and service life of the speed reducer 300.
[0061] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.
[0062] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.
[0063] Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.
Claims
1. A ring rolling machine, characterized in that, Including: A motor frame, on which a motor is mounted at the top, and the output end of the motor is inclined with respect to the horizontal plane; A speed reducer, with a box body on the outside, the box body includes a left box body for connecting to the main frame and a right box body for connecting to the motor frame, and the input end of the speed reducer is connected to the output end of the motor through a coupling; A transition connecting plate is arranged between the right box body and the motor frame. The transition connecting plate is provided with a first through hole and a second through hole. The right box body is provided with a third through hole corresponding to the first through hole for the penetration of a first positioning member, and the motor frame is provided with a fourth through hole corresponding to the second through hole for the penetration of a second positioning member. The transition connecting plate is further provided with a positioning table that can abut against the bottom of the motor frame.
2. The rotary ring rolling mill according to claim 1, wherein, The speed reducer includes an input shaft system, a second shaft system meshing with the input shaft system, a third shaft system meshing with the second shaft system, and an output shaft system meshing with the third shaft system. An output spline for transmitting torque to the main machine is provided at one end of the output shaft system away from the right box body.
3. The rotary ring rolling mill according to claim 2, characterized in that, The left box body includes a box body main body and an extension part connected to each other. The extension part is located between the box body main body and the main machine and is used to accommodate the output spline.
4. The rotary ring rolling mill according to claim 3, characterized in that, A first bearing assembly and a second bearing assembly are provided on the output shaft system. The first bearing assembly and the second bearing assembly are oppositely arranged on both side walls of the box body main body, and the right box body is provided with a receiving groove for receiving the second bearing assembly.
5. The ring rolling machine according to claim 4, characterized in that, The first bearing assembly includes a first bearing seat, and the first bearing seat is detachably connected to the box body main body through a first connecting member; the second bearing assembly includes a second bearing seat, and the second bearing seat is detachably connected to the right box body through a second connecting member.
6. The rotary ring rolling mill according to claim 5, wherein, The first bearing assembly further includes a first bearing. A first end cover for fixing the first bearing assembly is provided at the outer end of the first bearing seat. The first end cover is provided with a first cavity for collecting the lubricating oil flowing out along the first bearing. An annular blocking member extending towards the output shaft system is provided inside the first end cover to divide the first cavity into adjacent first accommodation space and second accommodation space. The first bearing seat is provided with an oil return main channel arranged at an angle with the output shaft system, a first channel communicating the oil return main channel with the first accommodation space, and a second channel communicating the oil return main channel with the second accommodation space.
7. The rotary ring rolling mill according to claim 4, characterized in that, A third bearing assembly is provided at the neck of the input shaft system. Both the third bearing assembly and the second bearing assembly include a second bearing, an oil slinger abutting against the inner ring of the second bearing, and an oil separating ring abutting against the outer ring of the second bearing. The oil separating ring includes a blocking ring extending inwards to the outer periphery of the oil slinger.
8. The ring rolling mill according to claim 7, characterized in that, The neck of the input shaft system is provided with a third end cover for fixing the third bearing assembly, and the neck of the output shaft system is provided with a second end cover for fixing the second bearing assembly. The third end cover and the second end cover are both provided with a first protrusion on the side facing the retaining ring, and the outer circumferential wall of the oil slinger ring is provided with a bending structure, the bending structure includes a first bending portion extending radially and a second bending portion connected to an end of the first bending portion away from the oil slinger ring, and the second bending portion extends to the outer periphery of the first protrusion, and the outer sides of the third end cover and the second end cover are both provided with sealing members.
9. The rotary ring rolling mill according to claim 7, wherein, The third bearing in the third bearing assembly is specifically a tapered roller bearing, and the second bearing in the second bearing assembly is specifically a cylindrical roller bearing.
10. The rotary ring rolling mill according to claim 3, characterized in that, A first rib plate for reinforcing the strength of the box body is disposed between the box body and the extension portion, and a second rib plate for reinforcing the strength of the box body is disposed at the top and bottom of the box body.