Novel auxiliary supporting device for carrier roller
By designing a new type of idler roller auxiliary support device, the problem of uneven mandrel force caused by uneven ring height in the ring rolling mill was solved, thus achieving efficient ring forming and improving production efficiency.
Patent Information
- Application Number
- CN202520131222.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In ring rolling machines, uneven ring height leads to uneven stress on the mandrel, making it prone to breakage, increasing processing costs and the risk of ring oxidation. Furthermore, waiting for the mandrel to finish processing results in power consumption and ring quality issues.
A novel idler roller auxiliary support device is designed, including an auxiliary bracket, a hydraulic cylinder, an idler roller, and a support base. The support point position of the mandrel is controlled by a hydraulic system to improve the bending and torsional strength of the mandrel and change the friction mode to rolling friction to stabilize the ring forming.
It improved the yield of ring components, reduced the risk of mandrel breakage, reduced processing and energy consumption, and improved production efficiency and economic benefits.
Smart Images
Figure CN223748459U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ring rolling mill technical field, and specifically is a new type of roll auxiliary support device. BACKGROUND
[0002] According to the ring hot rolling of the blank of the existing forging equipment ring rolling mill, it is mainly used in the flange industry and bearing industry. Because the height of the rolled ring is different, the length of the mandrel is different. Because the blank ring is sleeved on the lower supporting mandrel of the ring rolling mill during the rolling process, when the height of the ring is high, the rolling pressure will increase, if the auxiliary support device is not used, the ring will be under the action of the rolling pressure, the mandrel will be in a cantilever beam structure, which will cause uneven stress of the mandrel, and the mandrel will be easily broken, causing the ring and the mandrel to be scrapped, and the mandrel needs to be reprocessed, which will greatly increase the processing cost, and before the new mandrel is processed, the ring to be rolled cannot be rolled in the furnace, if the waiting time is too long, the ring in the furnace will be over-forged with the increase of time and temperature, causing the oxide skin to fall off, the ring to not reach the predetermined volume and weight, or the ring to be over-forged and melted, causing a serious accident. If the heating is suspended, the temperature of the ring will decrease, and the ring needs to be heated again after the mandrel is processed, which will cause a large amount of power consumption and increase the rolling cost of the ring. SUMMARY
[0003] In order to solve the above problems, the utility model aims at providing a new type of roll auxiliary support device.
[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a new type of roll auxiliary support device, which comprises an auxiliary support and an auxiliary support cylinder for realizing left and right sliding of the auxiliary support through a first guide rail plate on a base, a roll which can slide left and right is arranged in the middle of the auxiliary support through an auxiliary sliding block and a second guide rail plate, the auxiliary sliding block is driven to move back and forth by an auxiliary cylinder arranged at one end of the auxiliary support, a vertical auxiliary roll assembly is arranged on the other side close to the roll, a support seat for supporting the mandrel is arranged at the top of the auxiliary support, and a plummer block bearing and a mandrel sleeve are arranged in the support seat.
[0005] Further, a plummer block bearing which can rotate freely is arranged in the support seat, and a mandrel sleeve for inserting the mandrel is fixed to the inner side wall of the plummer block bearing.
[0006] Further, the main body of the auxiliary support cylinder is arranged and fixed at one end of the base through the hinge shaft of the auxiliary support cylinder, and the telescopic end of the auxiliary support cylinder is connected with the first pin shaft inserted in the auxiliary support.
[0007] Further, the main body of the auxiliary cylinder is fixed and supported at one end of the auxiliary support through the fixed hinge shaft of the auxiliary cylinder, and the telescopic end of the auxiliary cylinder is connected with the auxiliary sliding block through the second pin shaft.
[0008] Furthermore, the height of the mandrel sleeve is higher than the upper end of the idler roller and auxiliary idler roller assembly.
[0009] Furthermore, the support base consists of a cover, a round nut, a locking washer, a spacer, a bushing, and a self-aligning roller bearing.
[0010] Furthermore, the idler roller and auxiliary idler roller assembly consists of a roller frame cover, a sealing cover, a pusher plate, an idler roller, an idler roller shaft, a roller frame cover, an anti-rotation plate, and a self-aligning roller bearing.
[0011] With the above settings, when the workpiece is placed on the ring rolling machine, the auxiliary support cylinder advances rapidly to a position away from the mandrel, and then slowly advances until the mandrel sleeve completely covers the end of the mandrel, allowing the mandrel to act as two fulcrums, thus improving the mandrel's bending and torsional strength. Under the action of the auxiliary cylinder, the auxiliary roller assembly extends to the height of the ring, which limits the height of the ring, greatly increasing the ring forming rate, reducing scrap, and allowing the workpiece to be rolled as quickly as possible. The roller assembly and auxiliary roller assembly change from sliding friction to rolling friction, which can better assist product forming on vertical ring rolling machines, especially large vertical ring rolling machines, and improve the ring product yield.
[0012] This new type of idler roller auxiliary support device greatly improves the yield of ring parts, increases the working efficiency of rolling mill expansion, reduces the labor intensity of workers, and improves the economic benefits of enterprises. Attached Figure Description
[0013] The present invention will now be further described with reference to the accompanying drawings.
[0014] Fig. 1 This is a schematic diagram of the main structure of this utility model;
[0015] Fig. 2 This is a side view of the structure of this utility model. Detailed Implementation
[0016] like Figs. 1-2 As shown, a novel idler roller auxiliary support device includes an auxiliary bracket 1 and an auxiliary bracket cylinder 4 that pushes the auxiliary bracket 1 to slide left and right via a first guide rail plate 3 on a base 2. An idler roller 7 that can slide left and right is provided in the middle of the auxiliary bracket 1 via an auxiliary slider 5 and a second guide rail plate 6. The auxiliary slider 5 is driven to move back and forth by an auxiliary cylinder 8 provided at one end of the auxiliary bracket 1. A vertical auxiliary idler roller assembly 9 is provided on the other side near the idler roller 7. A support seat 10 for supporting a mandrel is provided at the top of the auxiliary bracket 1. The support seat 10 contains a self-aligning bearing 11 and a mandrel sleeve 12. That is, the support seat 10 contains a self-aligning bearing 11 that can rotate freely. The inner side wall of the self-aligning bearing 11 is fixed with a mandrel sleeve 12 for inserting the mandrel.
[0017] The main body of the auxiliary support oil cylinder 4 is fixed at one end of the base 2 through the hinge shaft of the auxiliary support oil cylinder 4, and the telescopic end of the auxiliary support oil cylinder 4 is connected with the first pin shaft 13 in the auxiliary support 1. The main body of the auxiliary oil cylinder 8 is fixed and supported at one end of the auxiliary support 1 through the fixed hinge shaft 14 of the auxiliary oil cylinder 8, and the telescopic end of the auxiliary oil cylinder 8 is connected with the auxiliary sliding block 5 through the second pin shaft 15. The height of the mandrel sleeve 12 is higher than the upper end of the supporting roller 7 and the auxiliary supporting roller assembly 9. The supporting seat 10 is composed of a cover, a round nut, a stop washer, a spacer sleeve, a shaft sleeve and a self-aligning roller bearing, and the supporting roller 7 and the auxiliary supporting roller assembly 9 are composed of a roller frame cover, a sealing cover, a pushing plate, a supporting roller, a supporting roller shaft, a roller frame cover, an anti-rotation plate and a self-aligning roller bearing.
[0018] The working principle of the utility model is as follows:
[0019] The whole auxiliary support adopts an advanced hydraulic system, and the whole system is composed of an overflow valve, an electromagnetic reversing valve, a one-way valve, a gear pump and other important hydraulic elements to form a sealed system. When the workpiece is on the ring rolling machine and works, the auxiliary support oil cylinder 4 will fast advance to the vicinity of the mandrel under the program prepared by the operator, and then slowly advance to the mandrel sleeve 12 to completely cover the end of the mandrel, so that the mandrel can be subjected to the action of two fulcrums, the bending and torsional strength of the mandrel is improved; the supporting roller 7 is extended to the height position of the ring piece under the action of the auxiliary oil cylinder 8, and plays a certain limiting role on the height of the ring piece, (note: the height of the vertical ring rolling machine is not rolled) which can greatly increase the forming rate of the ring piece, reduce the scrap rate, and make the workpiece complete the rolling as soon as possible. After the workpiece is expanded, the auxiliary oil cylinder 8 is slowly retracted to make the auxiliary sliding block drive the supporting roller 7 to exit the rolling, the supporting seat 10 is slowly retracted to the end of the mandrel under the program controlled by the operator through the auxiliary support oil cylinder 4, and then the supporting seat 10 is quickly retracted to the end of the mandrel through the oil cylinder 4 after the supporting seat is completely separated from the mandrel. The workpiece is convenient to disassemble, the labor productivity is improved, the auxiliary support 1 and the auxiliary sliding block 5 are welded structures, so that the structure has good stability and low cost.
[0020] The supporting roller 7 and the auxiliary supporting roller assembly 9 change from original sliding friction to rolling friction, which can better assist the product forming on the vertical ring rolling machine, especially on the large vertical ring rolling machine, and improve the finished product rate of the ring piece.
[0021] The above merely illustrates the specific implementation of the utility model, and is not used to limit the scope of the utility model. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the utility model shall fall within the protection scope of the utility model.
Claims
1. A novel idler roller auxiliary support device, comprising an auxiliary support (1) and an auxiliary support cylinder (4) that pushes the auxiliary support (1) to slide left and right via a first guide rail plate (3) on a base (2), characterized in that: The auxiliary support (1) is provided with a sliding roller (7) that can slide left and right through the auxiliary slider (5) and the second guide plate (6). The auxiliary slider (5) is driven to move back and forth by the auxiliary oil cylinder (8) provided at one end of the auxiliary support (1). A vertical auxiliary roller assembly (9) is provided on the other side near the roller (7). A support seat (10) for supporting the mandrel is provided on the top of the auxiliary support (1). The support seat (10) contains a self-aligning bearing (11) and a mandrel sleeve (12).
2. The novel idler roller auxiliary support device as described in claim 1, characterized in that: The support base (10) is provided with a self-aligning bearing (11) that can rotate freely, and a mandrel sleeve (12) for inserting the mandrel is fixed on the inner side wall of the self-aligning bearing (11).
3. The novel idler roller auxiliary support device as described in claim 1, characterized in that: The main body of the auxiliary support cylinder (4) is fixed to one end of the base (2) by its own hinge, and the telescopic end of the auxiliary support cylinder (4) is connected to the first pin (13) in the auxiliary support (1).
4. The novel idler roller auxiliary support device as described in claim 1, characterized in that: The main body of the auxiliary cylinder (8) is fixedly supported at one end of the auxiliary bracket (1) by its own fixed hinge (14), and the telescopic end of the auxiliary cylinder (8) is connected to the auxiliary slider (5) by the second pin (15).
5. The novel idler roller auxiliary support device as described in claim 1, characterized in that: The height of the mandrel sleeve (12) is higher than the upper end of the idler roller (7) and the auxiliary idler roller assembly (9).
6. The novel idler roller auxiliary support device as described in claim 1, characterized in that: The support base (10) consists of a cover, a round nut, a locking washer, a spacer, a bushing, and a self-aligning roller bearing.
7. The novel idler roller auxiliary support device as described in claim 1, characterized in that: The idler roller (7) and auxiliary idler roller assembly (9) consist of roller frame cover, sealing cover, pusher plate, idler roller, idler roller shaft, roller frame cover, anti-rotation plate and self-aligning roller bearing.