阅读说明：本技术 一种锥齿轮传动的单环辊旋轧机构 (Bevel gear driven single-ring roller rotary rolling mechanism ) 是由 李华英 仇云龙 李怀洲 孙振平 于 2020-08-26 设计创作，主要内容包括：本发明公开一种锥齿轮传动的单环辊旋轧机构,包括环辊组件,机架,底板座和传动组件；环辊组件安装于机架内；机架设置于底板座上方,并与底板座转动连接；传动组件固定设置于机架上；传动组件贯穿机架并与环辊组件的从动锥齿轮啮合。本发明反向利用了锥齿轮啮合原理,采用从动齿轮整体绕主动齿轮旋转的方法,将环辊支架的摆动与主、从动齿轮的啮合关系结合在一起,解决了送进角的调整与换辊传动的干涉和空间布局问题,使机构布局紧凑、节省空间且调整原理巧妙合理。(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.)

1. A single ring roller rotary rolling mechanism driven by bevel gears is characterized by comprising: the device comprises a ring roller assembly (1), a frame (2), a bottom plate seat (3) and a transmission assembly (5); the ring roller assembly (1) is arranged in the frame (2); the rack (2) is arranged above the bottom plate seat (3) and is rotationally connected with the bottom plate seat (3); the transmission assembly (5) is fixedly arranged on the rack (2); the transmission assembly (5) penetrates through the frame (2) and is meshed with a driven bevel gear (13) of the ring roller assembly (1); a frame round hole (21) is formed in the center of the vertical face of the frame (2).

2. The bevel gear driven single ring roll spin-rolling mechanism of claim 1, wherein: 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-shaped roller; the ring roller (11) is arranged on the inner surface of the ring roller barrel body (12), the driven bevel gear (13) is arranged on the ring roller barrel body (12), and two bearings are respectively arranged on two sides of the driven bevel gear (13).

3. The bevel gear driven single ring roll spin-rolling mechanism of claim 2, wherein: the inner surface of the ring roller (11) protrudes to the central axis of the ring roller (11) and is swept by an arc-shaped curved bus to form an annular curved surface (14).

4. The bevel gear driven single ring roll spin-rolling mechanism of claim 3, wherein: the centers of two opposite side surfaces on the bracket (4) are respectively provided with a first round hole (41); the centers of the other two side surfaces of the bracket (4) are respectively outwards formed with a sleeve (42); the two first round holes (41) are matched with the annular roller body (12) through the bearing; the two sleeves (42) are respectively arranged in the two rack round holes (21).

5. The bevel gear driven single ring roll spin-rolling mechanism of claim 1, wherein: the bottom of the rack (2) is also provided with a bottom plate (23), the bottom plate (23) comprises a central part and a first extending part (24) arranged on one side of the central part; a boss (22) is formed on the central bottom surface of the central part downwards, and the boss (22) is arranged in a second round hole (31) formed in the bottom plate seat (3); the transmission component (5) is fixedly arranged on the first extending part (24).

6. The bevel gear driven single ring roll spin-rolling mechanism of claim 4, wherein: the transmission assembly (5) comprises a driving bevel gear shaft (51), a motor (53) and a coupling (52); two bearings are sleeved on the coupler (52), and the coupler (52) completely penetrates through the inner cavity of the sleeve (42); one end of the coupler (52) is connected with the driving bevel gear shaft (51) in a key mode, and the other end of the coupler is in transmission connection with the output end of the motor (53); the driving bevel gear shaft (51) is meshed with the driven bevel gear (13); the central axes of the driving bevel gear shaft (51), the shaft coupling (52) and the sleeve (42) are superposed.

7. The bevel gear driven single ring roll spin-rolling mechanism of claim 1, wherein: a lateral pushing adjusting jackscrew (6) and a feeding angle adjusting jackscrew (7) are also arranged; the lateral pushing adjusting jackscrews (6) are arranged on two opposite surfaces of the rack (2) where the transmission device (5) is arranged; the feeding angle adjusting jackscrews (7) are arranged on the other two opposite surfaces of the rack; the side-push adjusting jackscrew (6) and the feeding angle adjusting jackscrew (7) are provided with a plurality of jackscrews, penetrate through the vertical faces of the side-push adjusting jackscrews and are abutted against the side wall of the support (4).

8. The bevel gear driven single ring roll spin-rolling mechanism of claim 7, wherein: a frame adjusting jackscrew (8) is also arranged; two upright columns (32) are further formed on the edge of the upper surface of the bottom plate seat (3), and the two upright columns (32) are centrosymmetric with respect to the second round hole (31); the two upright posts (32) are provided with the same mounting holes; the two frame adjusting jackscrews (8) are arranged in the two mounting holes, arranged on the same side with the feed angle adjusting jackscrew (7) and respectively penetrate through the vertical faces and are abutted against the side wall of the support (4).

9. The bevel gear driven single ring roll spin-rolling mechanism of claim 3 further provided with a blank that extends completely through both said frame circular holes (21); the blank comprises a core rod (10) and a pipe-shaped workpiece (9) sleeved on the outer surface of the core rod (10); the outer surface of the tubular workpiece (9) is in contact with the annular curved surface (14).

Technical Field

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

Background

The tubular workpiece is used in large quantity in industry, and the high-end tubular workpiece is realized by spinning or rolling. Most of the existing spinning machines and rolling mills are in contact with the outer surface of a deformation die and the outer surface of a workpiece, and the contact wrap angle of a spinning wheel or a roller of the existing spinning machines and a blank contact deformation area of a tubular workpiece is small, so that the defects of longitudinal cracks, obvious ripples on the surface and the like are easily generated.

Therefore, a ring roller rotary rolling mechanism is designed, so that the inner surface of a ring roller is used for carrying out contact and rotary rolling processing on a tubular workpiece, a larger wrap angle is formed in a contact deformation area with a tubular blank, the material has smaller circumferential deformation and radial deformation rate, and the metal axial elongation is larger.

Disclosure of Invention

The invention aims to provide a single-ring roller rotary rolling mechanism driven by a bevel gear, which aims to solve the problems in the prior art, can solve the problems of interference and spatial layout between adjustment of a feed angle and roller change transmission, and enables the mechanism layout of a rotary rolling machine to be compact, the space to be saved and the adjustment principle to be ingenious and reasonable.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a single-ring roller rotary rolling mechanism driven by a bevel gear, which comprises: the device comprises a ring roller assembly, a frame, a bottom plate seat and a transmission assembly; 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 rack; the transmission assembly penetrates through the machine frame and is meshed with the driven bevel gear of the ring roller assembly; a frame round hole is formed in the center of each vertical face of the frame.

Preferably, the method is based on the contact and the spin-rolling processing of the inner surface of the ring roller and the outer surface of the tubular workpiece, so that a contact deformation area with a tubular blank has a larger wrap angle, the material has smaller circumferential deformation and radial deformation rate, and simultaneously has larger metal axial elongation, thereby being a technology for economically and rapidly forming a thin-wall revolving body part; meanwhile, the independent adjustment of the reduction amount, the deflection angle and the feeding angle of the roller can be realized, and the problems of interference of the roller transmission device and the support of two ends of the tubular workpiece, the transmission of the tubular workpiece, the adjustment of the feeding angle and the main transmission layout are solved through the vertical arrangement of the driving bevel gear shaft and the axis of the tubular workpiece.

Preferably, the frame is a rectangular structure.

The ring roller assembly further comprises a ring roller, a ring roller barrel, a first support bearing and a bracket; the ring roller is a ring-shaped roller; the ring roller is arranged on the inner surface of the ring roller barrel, the driven bevel gear is arranged on the ring roller barrel, and two bearings are respectively arranged on two sides of the driven bevel gear.

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

The inner surface of the ring roller protrudes to the central axis of the ring roller, and is an annular curved surface formed by sweeping an arc-shaped curved bus.

The centers of two opposite side surfaces on the bracket are respectively provided with a first round hole; the centers of the other two side surfaces of the bracket are respectively outwards formed with a sleeve; the two first round holes are matched with the ring roller body through the bearing; the two sleeves are respectively arranged in the round holes of the two racks; the first round hole is superposed with the central axis of the ring roller body.

The bottom of the rack is also provided with a bottom plate, and the bottom plate comprises a central part and a first extending part arranged on one side of the central part; a boss is formed downwards on the central bottom surface of the central part and is arranged in a second round hole formed in the bottom plate seat; the transmission assembly is fixedly arranged on the first extending part.

The transmission assembly comprises a driving bevel gear shaft, a motor and a coupler; two bearings are sleeved on the coupler, and the coupler completely penetrates through the inner cavity of the sleeve; one end of the coupler is connected with the drive bevel gear shaft in a key mode, and the other end of the coupler is in transmission connection with the output end of the motor; the driving bevel gear shaft is meshed with the driven bevel gear; the central axes of the driving bevel gear shaft, the shaft coupling and the sleeve are overlapped.

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

preferably, a shaft end sliding key or a guide flat key of the driving bevel gear shaft is connected with the coupler; the driving bevel gear and the driven bevel gear are vertically meshed, and the vertexes of the respective branch taper angles alpha 1 and alpha 2 converge at the intersection point of the axial direction X1 of the ring roller and the axial line X2 of the driving bevel gear shaft.

A lateral pushing adjusting jackscrew and a feeding angle adjusting jackscrew are also arranged; the lateral pushing adjusting jackscrews are arranged on two opposite surfaces of the rack mounting transmission device; the feeding angle adjusting jackscrews are arranged on the other two opposite surfaces of the rack; the side-push adjusting jackscrew and the feeding angle adjusting jackscrew are provided with a plurality of jackscrews, penetrate through the vertical faces of the side-push adjusting jackscrews and are abutted against the side wall of the support.

A frame adjusting jackscrew is also arranged; two upright columns are further formed on the edge of the upper surface of the bottom plate seat, and the two upright columns are symmetrical about the center of the second round hole; the two upright posts are provided with the same mounting holes; the two frame adjusting jackscrews are arranged in the mounting holes of the two stand columns, arranged on the same side with the feeding angle adjusting jackscrew, and respectively penetrate through the vertical surfaces and are abutted against the side wall of the bracket.

The optimized frame adjusting jackscrew, the side pushing adjusting jackscrew and the feeding angle adjusting jackscrew adjust the position of the ring roller to respectively generate an adjusting angle gamma, a thinning amount delta t and a feeding angle beta, thereby forming and rolling the blank according to different requirements.

The invention discloses the following technical effects: 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 leads the mechanism layout of the rotary rolling mill to be compact, saves the space and has ingenious and reasonable adjustment principle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic view of the ring roller assembly of the present invention.

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

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

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

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

FIG. 7 is a schematic view of the transmission assembly of the present invention.

Wherein, 1-ring roller assembly; 11-ring rolls; 12-ring roll body; 13-driven bevel gear; 14-an annular curved surface; 2-a frame; 21-round hole of frame, 22-boss; 23-a base plate; 24-a first extension; 3-a baseplate seat; 31-a second circular aperture; 32-upright post; 4-a scaffold; 41-a first circular aperture; 42-a sleeve; 5-a transmission assembly; 51-driving bevel gear shaft; 52-a coupling; 53-a motor; 6-laterally pushing and adjusting a jackscrew; 7-adjusting a jackscrew by a feeding angle; 8-adjusting a jackscrew of the frame; 9-a tubular workpiece; 10-a core rod; X1-Ring roll center axis; x2-central axis of driving bevel gear shaft; an alpha-taper angle; a gamma-adjustment angle; Δ t-reduction and β -feed angle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides a single-ring roller rotary rolling mechanism driven by a bevel gear, which comprises: the device comprises a ring roller assembly 1, a frame 2, a bottom plate seat 3 and a transmission assembly 5; the ring roller assembly 1 is arranged in the frame 2; the frame 2 is arranged above the bottom plate seat 3 and is rotationally connected with the bottom plate seat 3; the transmission assembly 5 is fixedly arranged on the frame 2; the transmission assembly 5 penetrates through the frame 2 and is meshed with a driven bevel gear 13 of the ring roller assembly 1; a frame round hole 21 is arranged at the center of the vertical surface of the frame 2.

The ring roller assembly 1 also comprises a ring roller 11, a ring roller body 12 and a bracket 4; the ring roller 11 is a ring-shaped roller; the ring roller 11 is arranged on the inner surface of the ring roller body 12, the driven bevel gear 13 is arranged on the ring roller body 12, and two bearings are respectively arranged on two sides of the driven bevel gear 13.

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

The centers of two opposite side surfaces on the bracket 4 are respectively provided with a first round hole 41; the centers of the other two side surfaces of the bracket 4 are respectively outwards formed with a sleeve 42; the two first round holes 41 are matched with the ring roller body 12 through bearings; the two sleeves 42 are respectively installed in the two frame round holes 21.

The bottom of the frame 2 is also provided with a bottom plate 23, the bottom plate 23 comprises a central part and a first extending part 24 arranged on one side of the central part; a boss 22 is formed downwards on the central bottom surface of the central part, and the boss 22 is arranged in a second round hole 31 formed in the bottom plate seat 3; the first extension 24 is fixedly provided with a transmission assembly 5.

The transmission assembly 5 includes a drive bevel gear shaft 51, a motor 53 and a coupling 52; two bearings are sleeved on the coupler 52, and the coupler 52 completely penetrates through the inner cavity of the sleeve 42; one end of the coupler 52 is connected with the driving bevel gear shaft 51 in a key way, and the other end is in transmission connection with the output end of the motor 53; the drive bevel gear shaft 51 is meshed with the driven bevel gear 13; the central axes of the drive bevel gear shaft 51, the coupling 52 and the socket 42 coincide.

A lateral pushing adjusting jackscrew 6 and a feeding angle adjusting jackscrew 7 are also arranged; the side-push adjusting jackscrews 6 are arranged on two opposite surfaces of the rack 2 where the transmission device 5 is arranged; the feeding angle adjusting jackscrews 7 are arranged on the other two opposite surfaces of the frame; the side-push adjusting jackscrew 6 and the feed angle adjusting jackscrew 7 are provided with a plurality of jackscrews, and penetrate through the vertical surfaces of the side-push adjusting jackscrews and are abutted against the side wall of the bracket 4.

A frame adjusting jackscrew 8 is also arranged; two upright posts 32 are further formed on the edge of the upper surface of the bottom plate base 3, and the two upright posts 32 are centrosymmetric about the second round hole 31; the two upright columns 32 are provided with the same mounting holes; the two frame adjusting jackscrews 8 are arranged in the two mounting holes, arranged on the same side with the feed angle adjusting jackscrew 7, and respectively penetrate through the vertical surfaces and are abutted against the side wall of the bracket 4.

In the invention, the spin-rolling process of the tubular workpiece 9 comprises the following steps: the inner surface of the tubular workpiece 9 is sleeved on the outer surface of the mandrel 10, passes through the two frame round holes 21 along the direction parallel to the axis X1, is arranged in the central holes of the ring roller 11 and the ring roller barrel 12 and is contacted with the annular curved surface 14; and (3) laterally pushing the adjusting jackscrew 6 for adjustment, pressing the annular curved surface 14 on the inner surface of the ring roller 11 into the outer surface of the tubular workpiece 9 to form a thinning amount delta t, and setting a pressing point A. The feed angle adjusting jackscrew 7 is adjusted to rotate the ring roller assembly 1 around the axis X2, and simultaneously, each driven bevel gear 13 integrally rotates around the axis X2 of the drive bevel gear 51 without changing the meshing relationship with the drive bevel gear 51, so that the two ring rollers 11 deflect relative to the axis X1 with the press-in point a as a supporting point to form a feed angle β. The frame adjusting jackscrew 8 is adjusted to enable the rectangular frame to rotate around the common rotation center line of the boss 22 and the second round hole 31 to form an adjusting angle gamma for changing the spin-rolling process parameters such as the rolling reduction and the contact angle of the ring roller and the tubular workpiece.

In one embodiment of the present invention, four lateral pushing adjustment jackscrews 6 and four feed angle adjustment jackscrews 7 are uniformly arranged on one vertical surface at equal intervals.

In another embodiment of the invention, the frame 2 and the frame 4 may be split into two halves for assembly, one on top of the other, for ease of installation.

In another embodiment of the present invention, the seamless steel pipe with a blank size of phi 57mm is processed, and the equipment structure is adjusted to meet the processing requirement. The blank size of the tubular workpiece 9 is: the outer diameter is phi 57mm, and the wall thickness is 35 mm; the size of the core mold 10 is: the inner surface of the tubular workpiece 9 with the inner diameter phi of 50mm is sleeved on the outer surface of the core rod 10.

The specific adjustment assembly process is as follows:

the ring roller 11 is arranged on the inner surface of the ring roller barrel 12, the feed angle adjusting jackscrew 7 runs to enable the sleeves 42 in the two groups of brackets 4 to rotate around the axis X2 of the circular hole 21 of the frame 2, and the adjusted feed angle beta 1 is 05 degrees; the rack adjusting jackscrew 8 runs to push the rack 2 to rotate around the boss 22 and the second round hole 31 in the axis, and the adjusting angle gamma is adjusted to be 10 degrees; the tubular workpiece 9 and the core mold 10 are moved along the axis X1 through the other two frame circular holes 21 and the two first circular holes 41 of the two sets of frames 4 to the lowest axial position with the annular curved surface 14; adjusting the side-push adjusting jackscrew 6 to enable the annular curved surfaces 14 of the two groups of annular cylindrical rollers 11 to be in contact with the outer surface of the blank of the tubular workpiece 9, determining a thinning amount adjusting base point A, withdrawing the tubular workpiece 9, and moving the side-push adjusting jackscrew 6 to enable the base point A to move towards the axis X1 to adjust the thinning amount, wherein the thinning amount after adjustment is delta t equal to 1.5 mm.

The transmission assembly 5 is operated, the motors 53 being respectively mounted on the extensions 24; when the motor 53 runs, the driving bevel gear shaft 51 is driven by the coupler 52 to rotate in the sleeve 42, and the driven bevel gear 13 is driven to rotate; the driven bevel gear 13 is connected with the ring roller body 12 and drives the ring roller body 12 to rotate around an axis X2 in the first round hole 41 of the bracket 4; the ring roller 11 is mounted on the inner surface of the ring roller body 12 and rotates with the ring roller body 12. The motor input rotation speed n is 800rpm, the bevel gear reduction ratio i is 4, and the ring roller output rotation speed n' is 200 rpm.

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

The invention discloses the following technical effects: 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 leads the mechanism layout of the rotary rolling mill to be compact, saves the space and has ingenious and reasonable adjustment principle.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.