A vertical ring rolling machine for forging process
By designing a sliding rod and a limiting plate, the offset problem of the vertical ring rolling mill when processing asymmetrical or unevenly shaped ring forgings is solved, achieving a more uniform rolling effect and higher production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING MINGSHENG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
When processing ring forgings with asymmetrical structures or uneven material properties, existing vertical ring rolling mills are prone to causing the ring-shaped parts to shift, affecting dimensional accuracy and causing equipment vibration, thus reducing production efficiency.
The medium in the fixed tube is squeezed by a sliding rod and flows into the cavity of the hollow roller through the guide hose, causing the sliding limit plate to extend. The length of the hollow roller changes with the radius of the component, limiting the component's offset. Synchronous coupling is achieved through the limit claw and the linear grinding mechanism to ensure uniform rolling effect.
It effectively limits the offset of the ring forging, improves the uniformity of the rolling effect and production efficiency, reduces equipment vibration, and improves machining accuracy.
Smart Images
Figure CN224406338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring rolling mill technology, and in particular to a vertical ring rolling mill for forging. Background Technology
[0002] A ring rolling mill is a key piece of equipment used for forming and processing ring forgings. It reduces the wall thickness and increases the diameter of the ring blank through continuous localized plastic deformation, thereby obtaining ring forgings with the required dimensions and properties. Based on structural layout differences, ring rolling mills can be divided into two main categories: vertical and horizontal. Vertical ring rolling mills have vertically arranged work rolls and are suitable for processing large ring forgings, offering advantages such as small footprint and convenient loading. Horizontal ring rolling mills have horizontally arranged work rolls, offering higher efficiency in processing small and medium-sized ring parts and facilitating automated control. Both types of equipment are widely used in aerospace, wind power equipment, rail transportation, and other fields, and are core equipment in the production of ring components.
[0003] During the operation of a ring rolling mill, the rolling roller, as the core actuator, applies radial pressure to the annular component to achieve material elongation and deformation. However, as the diameter of the annular component increases, its thickness also increases accordingly. To ensure uniform rolling effect across different parts, the rolling roller is usually designed with a longer diameter. However, an excessively long rolling roller can easily cause relative displacement of the annular component during operation, especially when processing workpieces with asymmetrical structures or uneven material properties. This displacement not only affects the dimensional accuracy of the annular forging but can also cause equipment vibration and reduce production efficiency.
[0004] Based on the above viewpoints, this utility model proposes a vertical ring rolling mill for forging. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vertical ring rolling mill for forging. This vertical ring rolling mill utilizes a sliding rod to compress a medium in a fixed tube. This medium flows into the cavity of a hollow rolling roller through a guide hose, causing a sliding limiting disc slidably connected to the front end of the hollow rolling roller to extend forward. This allows the length of the hollow rolling roller to change along with the component during rolling, while the sliding limiting disc restricts component displacement. The change in the length of the hollow rolling roller along with the component radius not only effectively restricts component displacement but also makes the rolling effect more uniform.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A vertical ring rolling mill for forging includes an outer frame, a reduction mechanism mounted on the rear side of the outer frame, a drive motor mounted on the input end of the reduction mechanism and poweredly connected to the input shaft of the reduction mechanism, and a rotating positioning roller poweredly connected to the output shaft of the reduction mechanism. It also includes:
[0008] A linear compaction unit, wherein the linear compaction unit is slidably connected to the middle position of the outer frame and is positioned above the rotating positioning roller;
[0009] Mounting bracket, which is fixed to the top of the rear side wall of the outer frame;
[0010] A drive electric cylinder is installed in the middle of the upper side wall of the mounting frame and is used to drive the linear compaction unit to slide in the groove opened in the inner wall of the outer frame.
[0011] A suspension bracket is fixedly connected to the rear side wall of the linear compaction unit.
[0012] A sliding rod, which is fixedly connected to the center of the suspension bracket;
[0013] A fixed tube is fixedly connected to the top of the deceleration mechanism and sleeved on the outer wall of the sliding rod. The inner wall of the fixed tube and the outer wall of the sliding rod are sealed together by a sealing element.
[0014] A hollow roller, wherein the hollow roller is rotatably connected to the center of the linear rolling assembly via a bearing and the hollow roller is hollow in shape;
[0015] A sliding limiting plate is slidably connected to the front end of a hollow rolling roller, and the outer wall of the sliding limiting plate and the inner wall of the hollow rolling roller are sealed together by a sealing element.
[0016] A flow guiding hose, one end of which is fixedly connected to the bottom of the fixed pipe, and the other end of which is connected to the rear end of the hollow roller through a rotary joint, provides a passage for the flow of medium between the fixed pipe and the cavity of the hollow roller.
[0017] Preferably, a linear grinding mechanism is slidably connected in the inner groove of the outer frame. The movable end of the drive electric cylinder is fixed to the linear grinding mechanism through the frame. A connecting plate is fixedly connected to the rear side of the frame where the linear grinding mechanism is connected to the movable end of the drive electric cylinder. Fixed pipes are pin-connected to both sides of the connecting plate. The middle position of the fixed pipe is rotatably connected to the inner wall of the outer frame. The other end of the fixed pipe is connected to the rear pin of the linear rolling assembly.
[0018] Preferably, the linear polishing mechanism includes two sliders that can slide within the outer frame of the linear polishing mechanism and a conical polishing roller fixed to the bottom of the sliders.
[0019] Preferably, rotating frames are rotatably connected to both sides of the rear side wall of the outer frame, a connecting rod is fixedly connected to the rear end of the rotating frame, a limiting claw is fixedly connected to the front end of the rotating frame, a guide plate is fixedly connected to the bottom of the connecting plate, and a guide rod for guiding the sliding of the guide plate is fixedly connected to the bottom of the outer frame. A drive rod is pin-connected to the guide plate, and the top of the drive rod is pin-connected to the inner side of the connecting rod.
[0020] Preferably, the limiting claw includes an arc-shaped rod and a rotating roller rotatably connected to the top of the rod.
[0021] Preferably, the bottom of the outer frame is equipped with a protective mechanism, which includes a frame fixed to the bottom of the outer frame, a protective frame connected to the frame by a pin, and an electric push cylinder installed on the frame for driving the protective frame to rotate.
[0022] This utility model has the following beneficial effects:
[0023] In this invention, while the mounting frame adjusts the distance between the linear compaction group and the rotating positioning roller, the hollow compaction roller drives the sliding rod to move closer to the inside of the fixed tube, thereby squeezing the medium in the fixed tube. The medium flows into the cavity of the hollow compaction roller through the guide hose, causing the sliding limiting disc slidably connected to the front end of the hollow compaction roller to extend forward. This allows the length of the hollow compaction roller to change along with the component when it is compacting it, while the sliding limiting disc is used to limit the component's offset. The fact that the length of the hollow compaction roller changes along with the radius of the component not only effectively limits the component's offset but also makes the compaction effect more uniform.
[0024] In this invention, the expansion of the limiting claw and the sliding of the linear rolling assembly and the linear grinding mechanism are mechanically synchronized with the drive rod through the connecting plate and the guide plate, respectively, so that the ring rolling machine can be efficiently and synchronously coupled with each other according to the changes of the components. Attached Figure Description
[0025] Figure 1 This is an overall view of a vertical ring rolling mill for forging proposed in this utility model;
[0026] Figure 2 This is a rear view of a vertical ring rolling mill for forging according to the present invention.
[0027] Figure 3 for Figure 2 An isometric side section view along point AA;
[0028] Figure 4 for Figure 3 Enlarged view of point B along the middle edge;
[0029] Figure 5 This is a schematic diagram of the rear structure of a vertical ring rolling mill for forging according to the present invention.
[0030] Legend:
[0031] 1. External frame; 2. Drive motor; 3. Reduction mechanism; 4. Linear rolling assembly; 5. Limiting claw; 6. Rotary positioning roller; 7. Protective mechanism; 8. Linear grinding mechanism; 9. Hollow rolling roller; 10. Sliding limiting plate; 11. Drive cylinder; 12. Mounting frame; 13. Connecting plate; 14. Rotating frame; 15. Connecting rod; 16. Guide plate; 17. Drive rod; 18. Guide rod; 19. Suspension bracket; 20. Sliding rod; 21. Fixing pipe; 22. Flow guiding hose. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Example: Refer to Figures 1-5 This utility model provides an embodiment of a vertical ring rolling mill for forging, comprising an outer frame 1, a reduction mechanism 3 mounted on the rear side of the outer frame 1, a drive motor 2 mounted on the input end of the reduction mechanism 3 and poweredly connected to the input shaft of the reduction mechanism 3, and a rotating positioning roller 6 poweredly connected to the output shaft of the reduction mechanism 3. It also includes: a linear rolling assembly 4, which is slidably connected to the middle position of the outer frame 1 and positioned above the rotating positioning roller 6; a mounting frame 12, which is fixed to the top of the rear side wall of the outer frame 1; and a drive cylinder 11, which is mounted on the middle position of the upper side wall of the mounting frame 12 and used to drive the linear rolling assembly 4 to slide within a groove opened in the inner wall of the outer frame 1. A suspension bracket 19 is fixedly connected to the rear side wall of the linear compaction group 4. A sliding rod 20 is fixedly connected to the center of the suspension bracket 19. A fixed tube 21 is fixedly connected to the top of the reduction mechanism 3 and sleeved on the outer side wall of the sliding rod 20. The inner wall of the fixed tube 21 and the outer wall of the sliding rod 20 are sealed together by a sealing element. A hollow compaction roller 9 is rotatably connected to the center of the linear compaction group 4 by a bearing and is hollow. A sliding limit plate 10 is slidably connected to the front end of the hollow compaction roller 9 and the outer wall of the sliding limit plate 10 and the inner wall of the hollow compaction roller 9 are sealed together by a sealing element.
[0034] The flow guide hose 22 has one end fixedly connected to the bottom of the fixed pipe 21, and the other end connected to the rear end of the hollow roller 9 through a rotary joint. The flow guide hose 22 provides a passage for the flow of medium between the fixed pipe 21 and the cavity of the hollow roller 9. This ring rolling machine mainly utilizes the drive cylinder 11 to drive the linear rolling assembly 4 to adjust the distance between the linear rolling assembly 4 and the rotating positioning roller 6, thereby rolling the ring-shaped component and changing its diameter. Simultaneously, while the mounting frame 12 adjusts the distance between the linear rolling assembly 4 and the rotating positioning roller 6, the hollow rolling roller 9 drives the sliding rod 20 to move closer to the inside of the fixed tube 21, thereby squeezing the medium in the fixed tube 21. This medium flows into the cavity of the hollow rolling roller 9 through the guide hose 22, causing the sliding limiting disc 10, which is slidably connected to the front end of the hollow rolling roller 9, to extend forward. This allows the length of the hollow rolling roller 9 to change along with the component when rolling it, while the sliding limiting disc 10 is used to limit the component's offset. The fact that the length of the hollow rolling roller 9 changes along with the component's radius not only effectively limits the component's offset but also makes the rolling effect more uniform.
[0035] A linear grinding mechanism 8 is slidably connected to the inner groove of the outer frame 1. The movable end of the drive cylinder 11 is fixed to the linear grinding mechanism 8 via the frame. A connecting plate 13 is fixedly connected to the rear side of the frame where the linear grinding mechanism 8 and the movable end of the drive cylinder 11 are connected. Fixed pipes 21 are pin-connected to both sides of the connecting plate 13. The middle position of the fixed pipe 21 is rotatably connected to the inner wall of the outer frame 1. The other end of the fixed pipe 21 is connected to the rear pin of the linear compaction group 4. When the drive cylinder 11 drives the linear grinding mechanism 8 to descend, it will press the rear end of the fixed pipe 21 downward through the connecting plate 13. At the same time, the fixed pipe 21 is a lever structure, and its front end will deflect upward, thereby driving the linear compaction group 4 to slide in the opposite direction.
[0036] The linear grinding mechanism 8 includes two sliders that can slide within the outer frame of the linear grinding mechanism 8 and a conical grinding roller fixed to the bottom of the sliders. Since local protrusions will appear on the front and back of the part when it is being rolled, the linear grinding mechanism 8 can be used to grind the front and back side walls of the part to make the part forming effect better.
[0037] Rotating frames 14 are rotatably connected to both sides of the rear side wall of the outer frame 1. A connecting rod 15 is fixedly connected to the rear end of the rotating frame 14, and a limiting claw 5 is fixedly connected to the front end of the rotating frame 14. A guide plate 16 is fixedly connected to the bottom of the connecting plate 13, and a guide rod 18 is fixedly connected to the bottom of the outer frame 1 to guide the sliding of the guide plate 16. A drive rod 17 is pin-connected to the guide plate 16, and the top of the drive rod 17 is pin-connected to the inner side of the connecting rod 15. When the connecting plate 13 moves upward, it drives the drive rod 17 to slide upward through the guide plate 16, thereby causing the inner side of the connecting rod 15 to deflect upward, so that the rotating frame 14 drives the limiting claw 5 to open. This allows the limiting claw 5 to expand according to the change of the component radius. At the same time, the expansion of the limiting claw 5 and the sliding of the linear rolling group 4 and the linear grinding mechanism 8 are mechanically synchronized through the connecting plate 13, the guide plate 16 and the drive rod 17, so that the ring rolling machine can be efficiently and synchronously coupled with the changes of the components.
[0038] The limiting claw 5 includes an arc-shaped rod and a rotating roller rotatably connected to the top of the rod. The arc-shaped rod further limits the offset of the component, while the rotating roller makes the contact between the limiting claw 5 and the component smoother. A protective mechanism 7 is installed at the bottom of the outer frame 1. The protective mechanism 7 includes a frame fixed to the bottom of the outer frame 1, a protective frame connected to the frame by a pin, and an electric pusher cylinder installed on the frame to drive the protective frame to rotate. The protective frame is used to prevent the component from popping out during crushing.
[0039] Working Principle: This ring rolling mill mainly utilizes the drive cylinder 11 to drive the linear rolling assembly 4 to adjust the distance between the linear rolling assembly 4 and the rotating positioning roller 6, thereby rolling the ring-shaped component and changing its diameter. Simultaneously, while the mounting frame 12 adjusts the distance between the linear rolling assembly 4 and the rotating positioning roller 6, the hollow rolling roller 9 drives the sliding rod 20 to move closer to the inside of the fixed tube 21, thus squeezing the medium in the fixed tube 21. This medium flows into the cavity of the hollow rolling roller 9 through the guide hose 22, causing the sliding limiting disc 10, which is slidably connected to the front end of the hollow rolling roller 9, to extend forward. This allows the length of the hollow rolling roller 9 to change along with the component during rolling, while the sliding limiting disc 10 restricts component displacement. The change in length of the hollow rolling roller 9 along with the component radius effectively limits... The offset of the components also makes the rolling effect more uniform. When the drive cylinder 11 drives the linear grinding mechanism 8 to descend, it will press the rear end of the fixed tube 21 downward through the connecting plate 13. At the same time, the fixed tube 21 is a lever structure, and its front end will deflect upward, thereby driving the linear rolling group 4 to slide in the opposite direction. When the connecting plate 13 moves upward, it will drive the drive rod 17 to slide upward through the guide plate 16, thereby driving the inner side of the connecting rod 15 to deflect upward, so that the rotating frame 14 drives the limiting claw 5 to open, thereby allowing the limiting claw 5 to expand according to the change of the component radius. At the same time, the expansion of the limiting claw 5 and the sliding of the linear rolling group 4 and the linear grinding mechanism 8 are mechanically synchronized with the drive rod 17 through the connecting plate 13, the guide plate 16, and the connecting plate 17, respectively, so that the ring rolling machine can be efficiently and synchronously coupled with the changes of the components.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vertical ring rolling machine for forging processing, comprising an outer frame (1), a speed reduction mechanism (3) installed at the rear side of the outer frame (1), a driving motor (2) installed on the input end of the speed reduction mechanism (3) and in power connection with the input shaft of the speed reduction mechanism (3), and a rotary positioning roller (6) in power connection with the output shaft rod of the speed reduction mechanism (3), characterized in that: Also includes: Linear compaction unit (4), which is limited and slidably connected to the middle position of the outer frame (1) and positioned above the rotating positioning roller (6); Mounting bracket (12), which is fixed to the top of the rear side wall of the outer frame (1); Drive cylinder (11), which is installed in the middle of the upper side wall of the mounting frame (12) and is used to drive the linear rolling group (4) to slide in the groove opened in the inner wall of the outer frame (1); The suspension bracket (19) is fixedly connected to the rear side wall of the linear compaction unit (4); A sliding rod (20) is fixedly connected to the center of the suspension bracket (19); Fixed tube (21), the fixed tube (21) is fixedly connected to the top of the deceleration mechanism (3) and sleeved on the outer wall of the sliding rod (20). The inner wall of the fixed tube (21) and the outer wall of the sliding rod (20) are sealed together by a sealing element. Hollow rolling roller (9), the hollow rolling roller (9) is rotatably connected to the center of the linear rolling group (4) by bearing and the hollow rolling roller (9) is hollow; A sliding limiting plate (10) is slidably connected to the front end of the hollow rolling roller (9), and the outer wall of the sliding limiting plate (10) and the inner wall of the hollow rolling roller (9) are sealed together by a sealing element. The flow guide hose (22) is fixedly connected at one end to the bottom of the fixed pipe (21), and its other end is connected to the rear end of the hollow rolling roller (9) through a rotary joint. The flow guide hose (22) provides a passage for the flow of medium between the fixed pipe (21) and the cavity of the hollow rolling roller (9).
2. The vertical ring rolling mill for forging according to claim 1, characterized in that: A linear grinding mechanism (8) is slidably connected in the inner groove of the outer frame (1). The movable end of the drive cylinder (11) is fixed to the linear grinding mechanism (8) through the frame. A connecting plate (13) is fixedly connected to the rear side of the frame where the linear grinding mechanism (8) and the movable end of the drive cylinder (11) are connected. A fixing pipe (21) is pin-connected to both sides of the connecting plate (13). The middle position of the fixing pipe (21) is rotatably connected to the inner wall of the outer frame (1). The other end of the fixing pipe (21) is connected to the rear pin of the linear rolling group (4).
3. A vertical ring rolling mill for forging according to claim 2, characterized in that: The linear polishing mechanism (8) includes two sliders that can slide within the outer frame of the linear polishing mechanism (8) and a conical polishing roller fixed to the bottom of the sliders.
4. A vertical ring rolling mill for forging according to claim 2, characterized in that: Rotating frames (14) are rotatably connected to both sides of the rear side wall of the outer frame (1). A connecting rod (15) is fixedly connected to the rear end of the rotating frame (14). A limiting claw (5) is fixedly connected to the front end of the rotating frame (14). A guide plate (16) is fixedly connected to the bottom of the connecting plate (13). A guide rod (18) is fixedly connected to the bottom of the outer frame (1) to guide the sliding of the guide plate (16). A drive rod (17) is pin-connected to the guide plate (16). The top of the drive rod (17) is pin-connected to the inner side of the connecting rod (15).
5. A vertical ring rolling mill for forging according to claim 4, characterized in that: The limiting claw (5) includes an arc-shaped rod and a rotating roller rotatably connected to the top of the rod.
6. A vertical ring rolling mill for forging according to claim 1, characterized in that: The bottom of the outer frame (1) is equipped with a protective mechanism (7), which includes a frame fixed to the bottom of the outer frame (1), a protective frame connected to the frame by a pin, and an electric push cylinder installed on the frame and used to drive the protective frame to rotate.