Ring rolling machine mounting structure for gear box flange forge piece

Abstract

The utility model discloses a mounting structure of a ring rolling machine for a gear box flange forge piece, which comprises a workbench for supporting a ring piece, a main rolling wheel, a core roller and two conical rollers, a plurality of grooves are arranged on the workbench, and balls are arranged in the grooves; the ring pieces are placed on the balls, the ring pieces are clamped between the main rolling wheel and the core roller in the horizontal direction, the ring pieces are clamped between the two conical rollers in the vertical direction, the main rolling wheel drives the ring pieces and the core roller to rotate, and the ring pieces are matched with the balls to roll. By arranging the balls and supporting the ring piece, the balls are matched with rotation of the ring piece to rotate synchronously based on flexibility of the balls, friction resistance between the ring piece and the workbench and heat generated by friction are reduced, broaching efficiency is improved, efficient cooling is achieved, and the service life of the tool is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to ring rolling mill technical field, concretely relates to a ring rolling mill mounting structure for gear box flange forge piece. BACKGROUND

[0002] Ring rolling mill is also called hole expanding machine, and is mainly divided into horizontal ring rolling mill and vertical ring rolling mill; the horizontal ring rolling mill is suitable for manufacturing large and super large ring pieces, such as large flange forge pieces for wind power, and can simultaneously realize axial rolling and radial rolling, and has wide application range.

[0003] The existing horizontal ring rolling mill places the forge piece on a workbench, and the friction generated by the rotation of the main rolling wheel and the contact with the forge piece drives the rotation of the forge piece, in this process, the high-temperature forge piece rotates on the workbench and generates large friction between the workbench, which further causes the following problems: 1) increases the resistance of the forge piece rotation, affecting the efficiency of ring rolling and hole expanding; 2) more heat is generated by friction, affecting the cooling efficiency; 3) the workpiece is severely worn, reducing the service life of the device. SUMMARY

[0004] The utility model aims at overcoming the defects in the prior art, and provides a ring rolling mill mounting structure for gear box flange forge piece, which reduces the friction resistance during hole expanding, improves the hole expanding efficiency, and prolongs the service life of the tooling.

[0005] In order to achieve the above technical effects, the technical scheme of the utility model is as follows: a ring rolling mill mounting structure for gear box flange forge piece, comprising a workbench supporting a ring piece, a main rolling wheel, a core roller and two tapered rollers, a plurality of grooves are provided on the workbench, and a plurality of balls are provided in the grooves; the ring piece is placed on the balls, the ring piece is clamped between the main rolling wheel and the core roller in the horizontal direction, and the ring piece is clamped between the two tapered rollers in the vertical direction; the main rolling wheel drives the rotation of the ring piece and the core roller, and the ring piece rolls in cooperation with the plurality of balls.

[0006] Preferably, the workbench is two, and the two workbenches are symmetrically arranged on the two sides of the core roller; a gap is left between the two workbenches for the core roller to pass through.

[0007] Preferably, the balls are symmetrically arranged on the two sides of the core roller.

[0008] Preferably, the tapered roller comprises an upper taper and a lower taper, the upper edge line of the lower taper abuts against the lower surface of the ring piece; and the upper edge line of the lower taper is coplanar with the plane where the top ends of the plurality of balls are located.

[0009] Preferably, a guide rail is further provided, and the workbench and the tapered roller are arranged on the guide rail and move along the guide rail.

[0010] Preferably, the technical scheme further comprises a limiting and guiding assembly, the limiting and guiding assembly comprises a fixing seat fixedly arranged on the guide rail and a guiding roller abutting against the ring piece, and the fixing seat and the guiding roller are elastically connected.

[0011] Preferably, two limiting and guiding assemblies are arranged on the two workbenches respectively.

[0012] The utility model discloses the advantages and beneficial effects lie in: the setting of the ball, the ring piece is placed on the ball and rotates with the main roller, the ball rotates synchronously with the rotation of the ring piece, reduces the friction resistance and the heat generated by friction between the ring piece and the workbench, improves the reaming efficiency and high -efficient cooling, prolongs the service life of the tooling. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the stereogram structure schematic diagram of the example gear box flange forging ring rolling machine mounting structure (including ring piece);

[0014] Figure 2 is the stereogram structure schematic diagram of the example gear box flange forging ring rolling machine mounting structure (not including ring piece);

[0015] Figure 3 is Figure 2 the top view schematic diagram;

[0016] Figure 4 is Figure 3 the section view at A-A in

[0017] Figure 5 is Figure 4 the enlarged schematic view at B in

[0018] Figure 6 is the top view of another example gear box flange forging ring rolling machine mounting structure (not including core roller support seat);

[0019] In the drawing: 1, workbench; 11, groove; 12, ball; 13, gap; 2, main roller; 3, core roller; 31, outer sleeve; 32, core roller main shaft; 4, taper roller; 41, upper taper; 42, lower taper; 5, guide rail; 6, limiting and guiding assembly; 61, fixing seat; 62, guiding roller; 63, movable block; 64, guiding rod; 65, compression spring; 66, connecting rod; 7, core roller support seat; 71, first oil cylinder; 72, second oil cylinder; 8, ring piece; 9, positioning roller; 10, hydraulic motor. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] In the description of the utility model, it needs to explain that, unless otherwise stated, the meaning of "multiple" is more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In the description of the utility model, it also needs to explain that, unless otherwise stated and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally formed connection; It can be mechanical connection, or electrical connection; It can be directly connected, or indirectly connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] As shown in Figures 1-6 The embodiment of the ring rolling machine mounting structure for gear box flange forgings comprises a workbench 1 supporting a ring piece 8, a main roller 2, a core roller 3 and two taper rollers 4. A plurality of grooves 11 are arranged on the workbench 1, and a plurality of balls 12 are arranged in the grooves 11. The ring piece 8 is placed on the balls 12, the main roller 2 and the core roller 3 are clamped in the ring piece 8 along the horizontal direction, and the two taper rollers 4 are clamped in the ring piece 8 along the vertical direction. The main roller 2 drives the rotation of the ring piece 8 and the core roller 3, and the ring piece 8 rolls in cooperation with the plurality of balls 12.

[0024] The existing horizontal ring rolling machine rotates in place, the core roller 3 is arranged in the ring piece 8 and abuts against and rolls the ring piece 8 towards the main roller 2, the rotation of the main roller 2 drives the rotation of the ring piece 8 and the core roller 3 (the rotation direction of the main roller 2 is opposite to the rotation direction of the core roller 3, and the rotation direction of the ring piece 8 is the same as the rotation direction of the core roller 3), thereby realizing the radial rolling of the ring piece 8. The ring piece 8 is clamped between the two taper rollers 4, and the rotation speed of the taper roller 4 is the same as that of the main roller 2 and the core roller 3, and the axial rolling of the ring piece 8 is realized by the rolling of the two taper rollers 4.

[0025] In this embodiment, the first direction is the width direction of the workbench 1, and the second direction is the length direction of the workbench 1. The ring piece 8 is clamped between the main roller 2 and the core roller 3 along the second direction, and the core roller is arranged in the middle of the workbench 1 along the first direction.

[0026] Along the length of the worktable 1, the main rolling roller 2 is located in front of the worktable 1, and the two conical rollers 4 are located behind the worktable 1; along the width of the worktable 1, the core roller 3 is located in the middle of the worktable 1; furthermore, when the ring rolling machine is not working, the core roller 3 is located above the center line of the worktable 1, and when the ring rolling machine is working, the core roller 3 is located in the middle of the worktable 1.

[0027] The main roller 2 is driven to rotate by a hydraulic motor 10; the hydraulic motor 10 is located below and connected to the main roller 2, and is mounted on the base surface. The cone roller 4 is also driven to rotate by the hydraulic motor 10.

[0028] The core roller 3 is mounted on the core roller support 7, which controls the movement of the core roller 3. The core roller support 7 is located in front of the main rolling roller 2 and fixedly mounted on the base surface. Specifically, the core roller support 7 includes a first hydraulic cylinder 71 and a second hydraulic cylinder 72. The first hydraulic cylinder 71 is connected to the core roller 3 and controls the core roller 3 to move in the vertical direction. The second hydraulic cylinder 72 is connected to the first hydraulic cylinder 71 and controls the core roller 3 to move in the length direction of the worktable 1.

[0029] The worktable 1 is provided with multiple balls 12, and the ring 8 is placed on the balls 12. The balls 12 are limited in the groove 11 and can rotate in all directions in the groove 11. When the ring 8 is driven to rotate by the main rolling wheel 2, the balls 12 rotate synchronously with the rotation of the ring 8, thereby reducing the friction between the ring 8 and the worktable 1, reducing the resistance of the worktable 1 to the ring 8, improving the smoothness and efficiency of the rotation of the ring 8, reducing the heat generated by friction, and facilitating efficient cooling.

[0030] The core roller 3 includes two parts: an outer sleeve 31 and a core roller main shaft 32. The outer sleeve 31 is fixedly connected to the core roller support 7, and the core roller main shaft 32 is sleeved on the outer sleeve 31 and rotatably connected to the outer sleeve 31.

[0031] like Figures 1-3 and Figure 6 As shown, in another preferred embodiment, there are two worktables 1, which are symmetrically arranged on both sides of the core roller 3; a gap 13 is left between the two worktables 1 for the core roller 3 to pass through.

[0032] The structure of the workbench 1 facilitates the fixing of the core roller 3 to the ring 8, ensuring that the core roller 3 fully abuts against the inner ring surface of the ring 8; it also facilitates the movement of the core roller 3, allowing adjustment of the distance between the core roller 3 and the main rolling roller 2 to accommodate the rolling of rings 8 with different wall thicknesses; on the other hand, it reduces the contact area between the ring 8 and the workbench 1, thereby reducing the frictional resistance when the ring 8 rotates.

[0033] In this embodiment, the gap 13 includes two segments: a rectangular segment and a trapezoidal segment. The trapezoidal segment is adapted to the shape of the cone roller 4, thereby facilitating the feeding and movement of the cone roller 4 within the gap 13 between the two worktables 1.

[0034] Furthermore, the balls 12 are symmetrically arranged on both sides of the core roller 3.

[0035] The ball bearings 12 are symmetrically arranged to ensure the balance of the ring 8 when it is placed horizontally.

[0036] like Figures 1-3 As shown, in another preferred embodiment, the tapered roller 4 includes an upper cone 41 and a lower cone 42, the upper edge of the lower cone 42 abuts against the lower surface of the ring 8; the upper edge of the lower cone 42 is coplanar with the plane containing the top ends of the plurality of balls 12.

[0037] In this embodiment, the lower cone 42 is in line contact with the ring 8, and the upper edge of the lower cone 42 is the line tangent to the lower surface of the ring 8; the upper cone 41 is in line contact with the ring 8, and the lower edge of the upper cone 41 is the line tangent to the upper surface of the ring 8.

[0038] The upper edge of the lower cone 42 is coplanar with the plane containing the top of the ball 12. The lower cone 42 further supports the ring 8 to ensure the balance of the ring 8.

[0039] like Figures 1-2 As shown, in another preferred embodiment, a guide rail 5 is also provided, and the worktable 1 and the cone roller 4 are both provided on the guide rail 5 and move along the guide rail 5.

[0040] The guide rail 5 allows for adjustable spacing between the worktable 1 and the main rolling roller 2; at the same time, the position of the cone roller 4 along the length of the worktable 1 can be adjusted to accommodate the position of the ring 8 with its gradually increasing outer diameter.

[0041] like Figures 1-3 and Figure 6 As shown, in another preferred embodiment, a limiting guide component 6 is also included. The limiting guide component 6 includes a fixed seat 61 fixedly disposed on the guide rail 5 and a guide roller 62 abutting against the ring 8. The fixed seat 61 and the guide roller 62 are elastically connected.

[0042] The fixed base 61 is elastically connected to the guide roller 62, so that the guide roller 62 always abuts against the ring 8 to limit the position of the ring 8 and provide guidance for the ring 8 during the hole enlargement process. As the outer diameter of the ring 8 gradually increases, the distance between the fixed base 61 and the guide roller 62 gradually decreases.

[0043] Specifically, in this embodiment, a movable block 63 is fixedly connected to the guide roller 62, and a guide rod 64 is provided between the movable block 63 and the fixed seat 61; one of the movable block 63 and the fixed seat 61 is fixedly connected to the guide rod 64, and the other is slidably connected to the guide rod 64. A compression spring 65 is sleeved on the guide rod 64, and the compression spring 65 is provided between the fixed seat 61 and the movable block 63 to adjust the distance between the fixed seat 61 and the guide roller 62.

[0044] Further, as shown in Figure 6 The fixed seat 61 and the guide roller 62 are connected through the connecting rod 66, one end of the connecting rod 66 is fixedly connected with the guide roller 62, the other end is hingedly connected with the fixed seat 61, the connecting rod 66 and the fixed seat 61 are arranged at an angle, a compression spring 65 is arranged between the connecting rod 66 and the fixed seat 61 and they elastically move at an angle. Specifically, as the outer diameter of the ring piece 8 gradually increases, the ring piece 8 abuts against the guide roller 62, the compression spring 65 is compressed, and the angle between the connecting rod 66 and the fixed seat 61 gradually decreases.

[0045] Further, the two limiting guide assemblies 6 are arranged on the two workbenches 1 respectively. The two limiting guide assemblies 6 are arranged to reduce the shaking of the forgings during the rolling process.

[0046] Further, as shown in Figures 1-2 Further, the two limiting guide assemblies 6 are arranged on the two workbenches 1 respectively. The two limiting guide assemblies 6 are arranged to reduce the shaking of the forgings during the rolling process.

[0047] The use process of the utility model: the interval between the workbench 1 and the main roller 2 is adjusted, and the ring piece 8 is placed on the ball 12 of the workbench 1; the first oil cylinder 71 is started to make the core roller 3 move downward and pass through the ring piece 8 and be placed in the gap 13 of the workbench 1, the second oil cylinder 72 is started to adjust the interval between the core roller 3 and the main roller 2 so that the ring piece 8 is clamped between the core roller 3 and the main roller 2; the limiting guide assembly 6 is fixed on the guide rail 5 and the guide roller 62 abuts against the ring piece 8; the relative position of the taper roller 4 and the ring piece 8 is adjusted, so that the ring piece 8 is clamped between the lower taper 42 and the upper taper 41; at the same time, the main roller 2 and the taper roller 4 are driven to rotate, and the ring piece 8 and the core roller 3 rotate synchronously with the rotation of the main roller 2; during the rolling process, the core roller gradually feeds towards the main roller 2 to roll the ring piece 8, the inner diameter of the ring piece 8 gradually increases, until the outer ring surface of the ring piece 8 abuts against the positioning roller 9, the core roller stops the feeding motion.

[0048] The above only describes the preferred embodiments of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. A ring rolling mill mounting structure for gearbox flange forgings, comprising a worktable (1) supporting a ring (8), a main rolling roller (2), a core roller (3), and two conical rollers (4), characterized in that, The workbench (1) is provided with a plurality of grooves (11), and ball bearings (12) are provided in the grooves (11); a ring (8) is placed on the ball bearings (12), and a ring (8) is sandwiched between the main rolling wheel (2) and the core roller (3) in the horizontal direction, and a ring (8) is sandwiched between the two cone rollers (4) in the vertical direction. The main rolling wheel (2) drives the ring (8) and the core roller (3) to rotate, and the ring (8) rolls in cooperation with the plurality of ball bearings (12).

2. The mounting structure for a ring rolling mill for gearbox flange forgings according to claim 1, characterized in that, There are two worktables (1), which are symmetrically arranged on both sides of the core roller (3); a gap (13) is left between the two worktables (1) for the core roller (3) to pass through.

3. The mounting structure for a ring rolling mill for gearbox flange forgings according to claim 2, characterized in that, The balls (12) are symmetrically arranged on both sides of the core roller (3).

4. The mounting structure for a ring rolling mill for gearbox flange forgings according to claim 3, characterized in that, The cone roller (4) includes an upper cone (41) and a lower cone (42). The upper edge of the lower cone (42) abuts against the lower surface of the ring (8). The upper edge of the lower cone (42) is coplanar with the plane containing the top ends of the plurality of balls (12).

5. The mounting structure for a ring rolling mill for gearbox flange forgings according to claim 3, characterized in that, A guide rail (5) is also provided, and the worktable (1) and the cone roller (4) are both located on the guide rail (5) and move along the guide rail (5).

6. The mounting structure for a ring rolling mill for gearbox flange forgings according to claim 5, characterized in that, It also includes a limiting guide assembly (6), which includes a fixed seat (61) fixedly disposed on the guide rail (5) and a guide roller (62) abutting against the ring (8), wherein the fixed seat (61) and the guide roller (62) are elastically connected.

7. The mounting structure for a ring rolling mill for gearbox flange forgings according to claim 6, characterized in that, Two limit guide components (6) are provided, and the two limit guide components (6) are respectively provided on the two worktables (1).

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