CN111842742B - Bevel gear driven single-ring roller rotary rolling mechanism - Google Patents

Abstract

The invention discloses a single-ring roller rotary rolling mechanism driven by a bevel gear, which comprises a ring roller assembly, a rack, a bottom plate seat and a transmission assembly, wherein the rack is arranged on the rack; the ring roller assembly is arranged in the frame; the frame is arranged above the bottom plate seat and is rotationally connected with the bottom plate seat; the transmission assembly is fixedly arranged on the frame; the transmission assembly penetrates through the machine frame and is meshed with the driven bevel gear of the ring roller assembly. The invention reversely utilizes the meshing principle of the bevel gear, adopts the method that the driven gear integrally rotates around the driving gear, combines the swinging of the ring roller bracket and the meshing relation of the driving gear and the driven gear, solves the problems of interference and spatial layout of the adjustment of the feeding angle and the roll changing transmission, and has compact mechanism layout, space saving and ingenious and reasonable adjustment principle.

Description

A bevel gear-driven single-ring roll rolling mechanism

technical field

The invention relates to the technical field of spinning and rolling, in particular to a single-ring roll spinning mechanism driven by a bevel gear.

Background technique

Tube-shaped workpieces are used in a huge amount in the industry, and most of the high-end tube-shaped workpieces are realized by spinning or rolling. In the existing spinning machines and rolling mills, the outer surface of the deformation die is mostly in contact with the outer surface of the workpiece. The contact angle of the rotary wheel or roller and the blank of the tubular workpiece is small, and the contact angle of the deformation area is small, which is prone to longitudinal cracks and obvious ripples on the surface. defect.

Therefore, a ring roll spinning mechanism is designed to make the inner surface of the ring roll contact and spin the tubular workpiece, so that the deformation area in contact with the tubular blank has a larger wrap angle and the material has a smaller circumference. The radial deformation rate and the radial deformation rate are higher, and the metal axial elongation rate is larger at the same time.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a bevel gear-driven single-ring roll rolling mechanism, so as to solve the above-mentioned problems in the prior art, and to be able to adjust the feeding angle and to interfere with the roll change transmission and the spatial layout problems, so as to make the rolling mill run smoothly. The mechanism layout is compact, space-saving and the adjustment principle is ingenious and reasonable.

In order to achieve the above purpose, the present invention provides the following solution: the present invention provides a single ring roll rotating mechanism driven by bevel gears, comprising: a ring roll assembly, a frame, a base plate and a transmission assembly; the ring roll assembly is installed on the inside the frame; the frame is arranged above the base plate and is rotatably connected with the base plate; the transmission assembly is fixedly arranged on the frame; the transmission assembly penetrates the frame and It meshes with the driven bevel gear of the ring roller assembly; the center of the vertical surface of the frame is provided with a frame round hole.

Preferably, the present invention is based on that the inner surface of the ring roll is in contact with the outer surface of the tubular workpiece and spin-rolled, so that the deformation zone in contact with the tubular blank has a larger wrap angle, and the material has smaller circumferential deformation and The radial deformation rate and the large axial elongation of the metal are an economical and rapid technology for forming thin-walled rotary parts; at the same time, it can realize the individual adjustment of the reduction reduction, the roll deflection angle and the feeding angle , Through the vertical arrangement of the driving bevel gear shaft and the axis of the tubular workpiece, the interference problem between the roller transmission device and the support at both ends of the tubular workpiece, the transmission of the tubular workpiece and the adjustment of the feeding angle are solved. Adjustment and main drive layout issues.

Preferably, the rack has a rectangular structure.

The ring roller assembly further includes a ring roller, a ring roller cylinder, a first support bearing and a bracket; the ring roller is a ring cylinder-shaped roller; the ring roller is installed on the inner surface of the ring roller cylinder, and the driven The bevel gear is mounted on the ring roller body, and a bearing is provided on both sides of the driven bevel gear.

Preferably, the ring roller can be installed on the inner surface of the ring roller cylinder or at one end of the ring roller cylinder.

The inner surface of the ring roller is convex toward the central axis of the ring roller, and is an annular surface formed by sweeping the arc-shaped curve generatrix.

A first circular hole is formed in the center of the two opposite side surfaces of the bracket; a sleeve is formed outward from the center of the other two side surfaces of the bracket; the two first circular holes are connected to the ring roller body through the bearing. The two sleeves are respectively installed in the circular holes of the two frames; the first circular hole and the central axis of the ring roller body are coincident.

The bottom of the frame is also provided with a bottom plate, and the bottom plate includes a center part and is placed on a first extension part on one side of the center part; The transmission assembly is fixedly arranged on the first extension part.

The transmission assembly includes a driving bevel gear shaft, a motor and a coupling; two bearings are sleeved on the coupling, and the coupling completely penetrates the inner cavity of the sleeve; one end of the coupling is connected to the inner cavity of the sleeve. The driving bevel gear shaft is connected with a key, and the other end is drivingly connected with the output end of the motor; the driving bevel gear shaft is meshed with the driven bevel gear; the driving bevel gear shaft, the coupling and the sleeve are connected. The central axis coincides.

Preferably, the central axis of the ring roller is set as X1, and the central axis of the driving bevel gear shaft is set as X2,

Preferably, the shaft end feather key or guide flat key of the driving bevel gear shaft is connected with the coupling; the main and driven bevel gears are vertically meshed, and the vertices of their respective taper angles α1 and α2 converge on the shaft of the ring roller To the intersection of X1 and the axis X2 of the drive bevel gear shaft.

A side push adjusting jack wire and a feeding angle adjusting jack wire are also provided; the side push adjusting jack wire is arranged on two opposite surfaces of the rack-mounted transmission device; the feeding angle adjusting jack wire is arranged on the machine. The other two opposite surfaces of the frame are provided; a plurality of the side push adjustment jacks and the feed angle adjustment jacks are provided, and they all penetrate through the vertical surfaces to which they belong and are in conflict with the side walls of the bracket.

A frame adjusting top wire is also provided; two uprights are also formed on the edge of the upper surface of the base plate, and the two uprights are symmetrical with respect to the center of the second circular hole; the two uprights are both provided with the same mounting holes; There are two frame adjusting jacks, which are installed in the mounting holes of the two uprights, and are arranged on the same side as the feeding angle adjusting jacks, respectively penetrating the respective vertical surfaces and colliding with the side walls of the brackets.

The preferred frame adjustment top wire, side push adjusting top wire and feeding angle adjusting top wire adjust the position of the ring roll, respectively generating the adjustment angle γ, the thinning amount Δt, and the feeding angle β, so that the blank can be adjusted according to different requirements. Forming spin rolling is performed.

The present invention discloses the following technical effects: the present invention reversely utilizes the meshing principle of bevel gears, adopts the method that the driven gear integrally rotates around the driving gear, and combines the swing of the ring roller support with the meshing relationship between the main and driven gears, It solves the problems of the adjustment of the feeding angle and the interference of the roller changing drive and the space layout, so that the mechanism layout of the spinning mill is compact, space-saving, and the adjustment principle is ingenious and reasonable.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic diagram of the ring roll assembly of the present invention.

Figure 3 is a schematic view of the structure of the ring roll of the present invention.

Figure 4 is an isometric view of the frame structure of the present invention.

FIG. 5 is a schematic diagram of the structure of the base plate seat of the present invention.

FIG. 6 is a schematic diagram of the structure of the stent of the present invention.

Figure 7 is a schematic diagram of the transmission assembly of the present invention.

Among them, 1- ring roller assembly; 11- ring roller; 12- ring roller body; 13- driven bevel gear; 14- annular surface; 2- frame; 21- frame hole, 22- boss; 23 - bottom plate; 24 - first extension part; 3 - bottom plate seat; 31 - second round hole; 32 - column; 4 - bracket; 41 - first round hole; 42 - sleeve; 5 - transmission assembly; 51 - active Bevel gear shaft; 52-coupling; 53-motor; 6-side push adjustment jack; 7-feed angle adjustment jack; 8-rack adjustment jack; 9-tube-shaped workpiece; 10-mandrel ; X1 - the central axis of the ring roller; X2 - the central axis of the driving bevel gear shaft; α - taper angle; γ - adjustment angle; Δt - thinning amount and β - feeding angle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The present invention provides a bevel gear-driven single-ring roll rolling mechanism, comprising: a ring roll assembly 1, a frame 2, a base plate 3 and a transmission assembly 5; the ring roll assembly 1 is installed in the frame 2; the frame 2 is provided with Above the bottom plate base 3 and rotatably connected with the bottom plate base 3; the transmission assembly 5 is fixedly arranged on the frame 2; the transmission assembly 5 penetrates the frame 2 and meshes with the driven bevel gear 13 of the ring roller assembly 1; A frame round hole 21 is defined in the center of the surface.

The ring roller assembly 1 also includes a ring roller 11, a ring roller body 12 and a bracket 4; the ring roller 11 is a ring cylindrical roller; the ring roller 11 is installed on the inner surface of the ring roller body 12, and the driven bevel gear 13 is installed on the ring roller On the cylinder body 12 , a bearing is provided on both sides of the driven bevel gear 13 .

The inner surface of the ring roller 11 protrudes toward the central axis of the ring roller 11 , and is swept by the arc-shaped curved generatrix to form an annular curved surface 14 .

A first circular hole 41 is formed in the center of the two opposite sides of the bracket 4; a sleeve 42 is formed outward from the center of the other two side surfaces of the bracket 4; the two first circular holes 41 are matched with the ring roller body 12 through bearings; two sets of The cylinders 42 are respectively installed in the circular holes 21 of the two racks.

The bottom of the rack 2 is also provided with a bottom plate 23, the bottom plate 23 includes a center portion, and a first extension portion 24 is arranged on one side of the center portion; Inside the opened second round hole 31 ; the first extension portion 24 is fixedly provided with a transmission assembly 5 .

The transmission assembly 5 includes a driving bevel gear shaft 51, a motor 53 and a coupling 52; the coupling 52 is sleeved with two bearings, and the coupling 52 completely penetrates the inner cavity of the sleeve 42; one end of the coupling 52 is connected to the driving cone The gear shaft 51 is connected with a key, and the other end is connected with the output end of the motor 53; the driving bevel gear shaft 51 meshes with the driven bevel gear 13; the central axis of the driving bevel gear shaft 51, the coupling 52 and the sleeve 42 coincide.

It is also provided with a side push adjustment jack wire 6 and a feed angle adjustment jack wire 7; the side push adjustment jack wire 6 is arranged on the two opposite surfaces of the frame 2 where the transmission device 5 is installed; the feed angle adjustment jack wire 7 is arranged on the other side of the frame. Two opposite surfaces; the side push adjusting top wire 6 and the feeding angle adjusting top wire 7 are provided with a number of them, and they all run through the vertical surfaces to which they belong and are in conflict with the side walls of the bracket 4 .

A rack adjusting top wire 8 is also provided; two uprights 32 are also formed on the edge of the upper surface of the base plate 3, and the two uprights 32 are symmetrical about the center of the second circular hole 31; the two uprights 32 are both provided with the same mounting holes; There are two jack wires 8 installed in the two mounting holes, and are arranged on the same side as the feed angle adjustment jack wires 7 , and respectively penetrate through their respective elevations and interfere with the side walls of the bracket 4 .

In the present invention, the spinning process of the tubular workpiece 9 is as follows: the inner surface of the tubular workpiece 9 is sleeved on the outer surface of the mandrel 10, and is placed through the circular holes 21 of the two stands along the direction parallel to the axis X1. It is placed in the center hole of the ring roller 11 and the ring roller body 12 and is in contact with the annular curved surface 14; the side push adjustment jack screw 6 is adjusted, and the annular curved surface 14 on the inner surface of the ring roller 11 is pressed into the outer surface of the tubular workpiece 9 to form For the reduction amount Δt, the indentation point is A. Adjust the feed angle adjustment jack screw 7, so that the ring roller assembly 1 rotates around the X2 axis, while each driven bevel gear 13 rotates around the axis X2 of the driving bevel gear 51 as a whole without changing the meshing relationship with the driving bevel gear 51, The two ring rollers 11 are deflected with respect to the X1 axis with the press-in point A as a support point to form a feed angle β. The frame adjustment top wire 8 is adjusted, so that the rectangular frame rotates around the common center line of rotation of the boss 22 and the second circular hole 31 to form an adjustment angle γ, which is used to change the spinning process parameters such as the reduction amount. and the contact angle between the ring roller and the tubular workpiece.

In an embodiment of the present invention, there are four side push adjusting jack wires 6 and feeding angle adjusting jack wires 7 on a vertical surface at equal intervals.

In another embodiment of the present invention, in order to facilitate installation, the rack 2 and the bracket 4 can be divided into upper and lower parts for assembly.

In yet another embodiment of the present invention, taking the processing of a seamless steel pipe with a blank size of φ57 mm as an example, the equipment structure is adjusted to meet the processing requirements. The blank size of the tubular workpiece 9 is: outer diameter φ57mm, wall thickness 35mm; core mold 10 size: inner diameter φ50mm The inner surface of the tubular workpiece 9 is sleeved on the outer surface of the mandrel 10 .

The specific adjustment process is as follows:

The ring roller 11 is installed on the inner surface of the ring roller body 12, and the feed angle adjustment jack screw 7 runs, so that the sleeves 42 in the two sets of brackets 4 rotate around the axis X2 of the frame hole 21 in the frame 2, and the feeding angle is adjusted. The advance angle β1=05°; the frame adjusts the top screw 8 to run, pushes the frame 2 to rotate around the boss 22 and the second round hole 31 in the axis, and adjusts the adjustment angle γ=10°; the tubular workpiece 9 and the core mold 10 Move through the other two frame holes 21 and the two first holes 41 of the two groups of brackets 4 along the axis X1 to the lowest axial position with the annular curved surface 14; The annular surface 14 of the shaped roller 11 is in contact with the outer surface of the blank of the tubular workpiece 9, and the base point A for the adjustment of the thinning amount is determined. The thinning amount and the thinning amount after adjustment are Δt=1.5mm respectively.

The transmission assembly 5 is running, and the motors 53 are respectively installed on the extension parts 24; when the motor 53 is running, the driving bevel gear shaft 51 is driven to rotate in the sleeve 42 through the coupling 52, and the driven bevel gear 13 is driven to rotate; the driven bevel gear 13 It is connected with the ring roller body 12 and drives the ring roller body 12 to rotate around the axis X2 in the first circular hole 41 of the bracket 4; the ring roller 11 is installed on the inner surface of the ring roller body 12 and rotates with the ring roller body 12 . The motor input speed n=800rpm, the bevel gear reduction ratio i=4, and the ring roller output speed n'=200rpm.

The blank is fed at a constant speed, and the feeding speed is v=2mm/s. The blank of the tubular workpiece 9 is processed uniformly under the rotation of the ring roller 11.

The present invention discloses the following technical effects: the present invention reversely utilizes the meshing principle of bevel gears, adopts the method that the driven gear integrally rotates around the driving gear, and combines the swing of the ring roller support with the meshing relationship between the main and driven gears, It solves the problems of the adjustment of the feeding angle and the interference of the roller changing drive and the space layout, so that the mechanism layout of the spinning mill is compact, space-saving, and the adjustment principle is ingenious and reasonable.

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The above-mentioned embodiments are only to describe the preferred modes of the present invention, but not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Variations and improvements should fall within the protection scope determined by the claims of the present invention.

Claims (1)

1. A bevel gear-driven single-ring roll rolling mechanism, characterized in that it comprises: a ring roll assembly (1), a frame (2), a base plate seat (3) and a transmission assembly (5); the ring roll The assembly (1) is installed in the frame (2); the frame (2) is arranged above the bottom plate seat (3) and is rotatably connected with the bottom plate seat (3); the transmission assembly ( 5) fixedly arranged on the frame (2); the transmission assembly (5) penetrates the frame (2) and meshes with the driven bevel gear (13) of the ring roller assembly (1); A frame round hole (21) is provided in the center of the vertical surface of the frame (2); The ring roller assembly (1) further comprises a ring roller (11), a ring roller body (12) and a bracket (4); the ring roller (11) is a ring roller; the ring roller (11) is installed On the inner surface of the ring roller body (12), the driven bevel gear (13) is mounted on the ring roller body (12), and a bearing is provided on each side of the driven bevel gear (13); The inner surface of the ring roller (11) protrudes toward the central axis of the ring roller (11), and is swept by an arc-shaped curve generatrix to form an annular surface (14); The bottom of the frame (2) is further provided with a bottom plate (23), the bottom plate (23) includes a central portion and a first extension portion (24) arranged on one side of the central portion; the central bottom of the central portion faces A boss (22) is formed at the bottom, and the boss (22) is installed in the second round hole (31) opened on the base plate seat (3); the first extension part (24) is fixedly provided with a the transmission assembly (5); A first circular hole (41) is formed in the center of two opposite side surfaces of the bracket (4); a sleeve (42) is formed outwardly from the center of the other two side surfaces of the bracket (4); the two first circular holes (41) Matching with the ring roller body (12) through the bearing; the two sleeves (42) are respectively installed in the two frame holes (21); A side push adjustment jack wire (6) and a feed angle adjustment jack wire (7) are also provided; the side push adjustment jack wire (6) is arranged on two opposite sides of the frame (2) where the transmission assembly (5) is installed. face; the feeding angle adjusting top wire (7) is arranged on the other two opposite surfaces of the frame; the side push adjusting top wire (6) and the feeding angle adjusting top wire (7) are provided with several, And all of them penetrate through their respective facades and are in conflict with the side walls of the bracket (4); a frame adjustment top wire (8) is also provided; the upper surface edge of the bottom plate seat (3) is also formed with two uprights (32), The two uprights (32) are symmetrical with respect to the center of the second circular hole (31); the two uprights (32) are both provided with the same mounting holes; the frame adjustment jacks (8) are provided with two , installed in the two mounting holes, and arranged on the same side as the feed angle adjustment jack wire (7); the frame adjustment jack wire (8) is adjusted so that the rectangular frame surrounds the boss (22) and the common center line of rotation of the second circular hole (31) to rotate; The transmission assembly (5) includes a driving bevel gear shaft (51), a motor (53) and a coupling (52); two bearings are sleeved on the coupling (52), and the coupling ( 52) Completely penetrate the inner cavity of the sleeve (42); one end of the coupling (52) is keyed to the drive bevel gear shaft (51), and the other end is drive-connected to the output end of the motor (53) ; the driving bevel gear shaft (51) meshes with the driven bevel gear (13); the central axes of the driving bevel gear shaft (51), the coupling (52) and the sleeve (42) coincide; also A blank is provided, the blank completely penetrates the two frame holes (21); the blank includes a mandrel (10) and a tubular workpiece (9) sleeved on the outer surface of the mandrel (10). ; The outer surface of the tubular workpiece (9) is in contact with the annular curved surface (14).

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