Shaft radial roller ring movement shaft lifting device
By introducing a lubrication ring and a supply pipe into the axial radial ring rolling mill, the problem of insufficient lubrication in the guiding mechanism is solved, enabling high-precision lifting of the mandrel and efficient utilization of lubricating oil, preventing movement deviation and jamming, and improving the ring forming quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU DINGRUN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-07
AI Technical Summary
After prolonged use of the radial ring rolling mill, insufficient lubricant in the guide mechanism for mandrel lifting leads to an increased coefficient of friction, causing deviation in the motion trajectory and jamming, which affects the quality of ring forming.
The lubrication system includes a lubrication ring and a supply pipe. A micro pump periodically supplies lubricating oil to ensure uniform coating on the outside of the limit rod. Combined with a sealing ring, a closed oil-containing space is constructed to prevent lubricating oil leakage and achieve a stable lubrication state.
It significantly reduces the coefficient of friction, avoids scratches and wear on metal surfaces, ensures that the spindle body maintains high-precision linear motion during lifting, extends the effective working time of lubricating oil, and prevents movement skew and jamming.
Smart Images
Figure CN224463623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring workpiece processing technology, and in particular to a core shaft lifting device for a radial ring rolling machine. Background Technology
[0002] Axial and radial ring rolling mill is a mechanical device used for processing ring-shaped workpieces. It applies pressure to the ring blank through mandrels in both axial and radial directions, causing the blank to undergo continuous local plastic deformation during rotation, thereby achieving thinning of the ring wall, enlargement of the diameter, and shaping of the cross-sectional profile. When the mandrel is raised or lowered, a special drive assembly is required to drive the mandrel to move.
[0003] During the operation of the radial ring rolling mill, the mandrel's lifting and lowering motion relies on a guiding mechanism for precise guidance. As the equipment operates continuously for extended periods, the lubricant inside the guiding mechanism gradually decreases due to evaporation, leakage, and frictional losses. This deterioration in lubrication significantly increases the friction coefficient of the guiding mechanism, leading to uneven distribution of motion resistance. This, in turn, can cause deviations in the mandrel's lifting and lowering trajectory, jamming, and other phenomena, resulting in damage to the guiding components and affecting the quality of the ring forming. Utility Model Content
[0004] The purpose of this invention is to solve the problem that insufficient lubricant occurs inside the guide mechanism for mandrel lifting after prolonged use, which leads to mandrel misalignment and jamming. Therefore, this invention proposes a mandrel lifting device for a radial ring rolling machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mandrel lifting device for a radial rolling mill, comprising a mandrel body, a lifting platform fixedly connected to one end of the mandrel body, an electric telescopic rod provided on one side of the lifting platform, the drive end of the electric telescopic rod fixedly connected to one side of the lifting platform, cylinders fixedly connected to the four corners of the lifting platform, limit rods movably passing through the interior of each of the four cylinders, a lubrication assembly fixedly installed at one end of each cylinder, a lubrication oil supply assembly fixedly connected to one side of the lubrication assembly, the lubrication assembly comprising a lubrication ring and a supply pipe, the output end of the supply pipe fixedly connected to the outer side of the lubrication ring, and the lubrication ring being located on the outer side of the limit rod.
[0006] Preferably, the supply pipe includes an annular pipe and several output pipes, one end of the several output pipes is fixedly connected to the inner side of the annular pipe, and the other end of the several output pipes is fixedly connected to the outer side of the lubrication ring.
[0007] Preferably, sealing rings are fixedly bonded to both ends inside the lubrication ring, and the inner side of the sealing ring is attached to the outer side of the limiting rod.
[0008] Preferably, the lubricating oil supply assembly includes a micro pump, a lubricating oil tank, and an electrically controlled valve. The input end of the micro pump is fixedly connected to one end of the lubricating oil tank, the output end of the micro pump is fixedly connected to one end of the electrically controlled valve, and the other end of the electrically controlled valve is fixedly connected to the input end of the supply pipe.
[0009] Preferably, a positioning base is fixedly installed on the other side of the lifting platform by bolts, and the other end of the spindle body is fixedly connected to the inside of the positioning base.
[0010] Preferably, a retaining ring is fixedly installed on the outer side of the other end of the mandrel body.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, the lubricating oil flows evenly into the interior of the lubrication ring through the output pipe, so that the lubricating oil is evenly coated on the outside of the limiting rod. This ensures that there is sufficient lubricating oil between the cylinder and the limiting rod when adjusting the height, which significantly reduces the friction coefficient between the cylinder and the limiting rod and avoids scratches and wear on the metal surface caused by dry friction. The stable lubrication state can ensure that the spindle body always maintains a high-precision linear motion trajectory during the lifting process, and effectively suppresses the movement distortion and jamming caused by uneven friction.
[0013] 2. In this invention, the sealing ring, with its precisely designed sealing structure, creates a closed oil-containing space inside the lubrication ring, effectively blocking the radial leakage path of the lubricating oil. This design allows the lubricating oil to form a stable wetting layer inside the lubrication ring, ensuring continuous and sufficient contact with the limiting rod, significantly extending the effective working time of the lubricating oil. Attached Figure Description
[0014] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a core shaft lifting device for a radial ring rolling mill;
[0015] Figure 2 This utility model provides a schematic diagram of the transmission relationship between the lifting platform and the electric telescopic rod in the core shaft lifting device of a radial ring rolling machine;
[0016] Figure 3 This utility model provides a schematic diagram of the connection relationship between the lubricating oil supply component and the lubrication component in the core shaft lifting device of a radial ring rolling machine;
[0017] Figure 4 This utility model presents a three-dimensional structural diagram of the lubrication component in the core shaft lifting device of a radial ring rolling machine.
[0018] Legend: 1. Mandrel body; 11. Material retaining ring; 2. Lifting platform; 21. Positioning base; 22. Cylinder; 3. Electric telescopic rod; 4. Limiting rod; 5. Lubrication assembly; 51. Lubrication ring; 511. Sealing ring; 52. Supply pipe; 521. Ring pipe; 522. Output pipe; 6. Lubricating oil supply assembly; 61. Miniature pump; 62. Lubricating oil tank; 63. Electrically controlled valve. Detailed Implementation
[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0021] Example 1: As Figures 1-4 As shown, this utility model provides a mandrel lifting device for a radial rolling mill, including a mandrel body 1. A lifting platform 2 is fixedly connected to one end of the mandrel body 1. An electric telescopic rod 3 is provided on one side of the lifting platform 2, and the drive end of the electric telescopic rod 3 is fixedly connected to one side of the lifting platform 2. Cylinders 22 are fixedly connected to the four corners of the lifting platform 2, and limit rods 4 movably pass through the interior of each of the four cylinders 22. A lubrication assembly 5 is fixedly installed at one end of each cylinder 22, and a lubricating oil supply assembly 6 is fixedly connected to one side of the lubrication assembly 5. The lubrication assembly 5 includes a lubrication ring 51 and a supply pipe 52. The output end of the supply pipe 52 is fixedly connected to the outer side of the lubrication ring 51. The lubrication ring 51 is located outside the limit rod 4. The supply pipe 52 includes an annular tube 52. The system includes a series of output pipes 522, with one end of each pipe fixedly connected to the inner side of the annular pipe 521 and the other end of each pipe fixedly connected to the outer side of the lubrication ring 51. The lubricating oil supply assembly 6 includes a micro pump 61, a lubricating oil tank 62, and an electrically controlled valve 63. The input end of the micro pump 61 is fixedly connected to one end of the lubricating oil tank 62, and the output end of the micro pump 61 is fixedly connected to one end of the electrically controlled valve 63. The other end of the electrically controlled valve 63 is fixedly connected to the input end of the supply pipe 52. A positioning base 21 is fixedly installed on the other side of the lifting platform 2 by bolts. The other end of the spindle body 1 is fixedly connected to the inside of the positioning base 21, and a baffle ring 11 is fixedly installed on the outer side of the other end of the spindle body 1.
[0022] The specific settings and functions of this embodiment are described below. The electric telescopic rod 3 drives the lifting platform 2 to move vertically along the constraint direction of the limiting rod 4, thereby driving the mandrel body 1 to adjust its height in the vertical direction. During the lifting process, the micro pump 61 periodically pumps out the lubricating oil inside the lubricating oil tank 62, and at the same time opens the electric control valve 63, so that the lubricating oil enters the supply pipe 52, and then flows evenly into the interior of the lubricating ring 51 through the output pipe 522, so that the lubricating oil is evenly coated on the outside of the limiting rod 4. This ensures that there is sufficient lubricating oil between the cylinder 22 and the limiting rod 4 during height adjustment, significantly reducing the coefficient of friction between the cylinder 22 and the limiting rod 4, avoiding scratches and wear on the metal surface caused by dry friction. The stable lubrication state ensures that the mandrel body 1 always maintains a high-precision linear motion trajectory during the lifting process, effectively suppressing the movement distortion and jamming caused by uneven friction. The retaining ring 11 can prevent iron filings from splashing during the stretching deformation of the annular workpiece.
[0023] Example 2: Figures 1-4 As shown, the axial radial ring rolling mill mandrel lifting device of this utility model includes a mandrel body 1. One end of the mandrel body 1 is fixedly connected to a lifting platform 2. An electric telescopic rod 3 is provided on one side of the lifting platform 2. The driving end of the electric telescopic rod 3 is fixedly connected to one side of the lifting platform 2. Cylinders 22 are fixedly connected to the four corners of the lifting platform 2. Limiting rods 4 are movably passed through the interior of each of the four cylinders 22. A lubrication component 5 is fixedly installed at one end of the cylinder 22. A lubricating oil supply component 6 is fixedly connected to one side of the lubrication component 5. The lubrication component 5 includes a lubrication ring 51 and a supply pipe 52. The output end of the supply pipe 52 is fixedly connected to the outside of the lubrication ring 51. The lubrication ring 51 is located on the outside of the limiting rod 4. Sealing rings 511 are fixedly bonded to both ends inside the lubrication ring 51. The inner side of the sealing ring 511 is attached to the outside of the limiting rod 4.
[0024] The overall effect of this embodiment is that when lubricating oil is injected into the lubrication ring 51 through the supply pipe 52 and the output pipe 522, the sealing ring 511, with its precisely designed sealing structure, constructs a closed oil-containing space inside the lubrication ring 51, effectively blocking the radial leakage path of the lubricating oil. This design allows the lubricating oil to form a stable wetting layer inside the lubrication ring 51, ensuring that it maintains continuous and sufficient contact with the limiting rod 4, significantly extending the effective action time of the lubricating oil.
[0025] Thanks to the barrier effect of the sealing ring 511, not only is the consumption of lubricating oil reduced, the efficient use of lubricating medium is achieved, and the cost of use is reduced, but it can also effectively prevent external dust, metal shavings and other impurities from entering the lubrication area, avoiding abrasive wear caused by foreign matter mixing in.
[0026] The device is used and works as follows: The electric telescopic rod 3 drives the lifting platform 2 to move vertically up and down along the constraint direction of the limiting rod 4, thereby driving the spindle body 1 to adjust its height in the vertical direction. During the lifting process, the micro pump 61 periodically pumps out the lubricating oil inside the lubricating oil tank 62, and at the same time opens the electric control valve 63, so that the lubricating oil enters the supply pipe 52, and then flows evenly into the interior of the lubricating ring 51 through the output pipe 522, so that the lubricating oil is evenly coated on the outside of the limiting rod 4.
[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model 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 for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A mandrel lifting device for a radial ring rolling mill, comprising a mandrel body (1), characterized in that: One end of the spindle body (1) is fixedly connected to a lifting platform (2). An electric telescopic rod (3) is provided on one side of the lifting platform (2). The drive end of the electric telescopic rod (3) is fixedly connected to one side of the lifting platform (2). Cylinders (22) are fixedly connected to the four corners of the lifting platform (2). Limit rods (4) are movably passed through the interior of the four cylinders (22). A lubrication assembly (5) is fixedly installed at one end of the cylinder (22). A lubricating oil supply assembly (6) is fixedly connected to one side of the lubrication assembly (5). The lubrication assembly (5) includes a lubrication ring (51) and a supply pipe (52). The output end of the supply pipe (52) is fixedly connected to the outside of the lubrication ring (51). The lubrication ring (51) is located on the outside of the limit rod (4).
2. The radial ring rolling mill core shaft lifting device according to claim 1, characterized in that: The supply pipe (52) includes an annular pipe (521) and several output pipes (522). One end of the several output pipes (522) is fixedly connected to the inside of the annular pipe (521), and the other end of the several output pipes (522) is fixedly connected to the outside of the lubrication ring (51).
3. The radial ring rolling mill core shaft lifting device according to claim 1, characterized in that: The two ends of the lubrication ring (51) are fixedly bonded with sealing rings (511), and the inner side of the sealing ring (511) is attached to the outer side of the limiting rod (4).
4. The radial ring rolling mill core shaft lifting device according to claim 1, characterized in that: The lubricating oil supply assembly (6) includes a micro pump (61), a lubricating oil tank (62), and an electrically controlled valve (63). The input end of the micro pump (61) is fixedly connected to one end of the lubricating oil tank (62), the output end of the micro pump (61) is fixedly connected to one end of the electrically controlled valve (63), and the other end of the electrically controlled valve (63) is fixedly connected to the input end of the supply pipe (52).
5. The radial ring rolling mill core shaft lifting device according to claim 1, characterized in that: The other side of the lifting platform (2) is fixedly installed with a positioning base (21) by bolts, and the other end of the spindle body (1) is fixedly connected to the inside of the positioning base (21).
6. The radial ring rolling mill core shaft lifting device according to claim 1, characterized in that: A retaining ring (11) is fixedly installed on the outer side of the other end of the mandrel body (1).