CN115653329A

CN115653329A - Self-adaptive synchronous driving mechanism

Info

Publication number: CN115653329A
Application number: CN202211398848.5A
Authority: CN
Inventors: 彭敏林; 慎辰; 潘润道; 罗一恒; 王宏敏; 胡世南; 李福森; 闫孟娇
Original assignee: China Shipbuilding NDRI Engineering Co Ltd
Current assignee: China Shipbuilding NDRI Engineering Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-01-31

Abstract

The invention relates to a self-adaptive synchronous driving mechanism which comprises a driving piece, a follower and a guide rail, wherein the driving piece and the follower are both arranged on the guide rail, a sliding block is fixed at the rear end of the driving piece, a horizontal sliding rail perpendicular to the guide rail is arranged at the front end of the follower, and the horizontal sliding rail is used for butting the sliding block. Compared with the prior art, the invention arranges the horizontal sliding rail and the sliding block between the driver and the follower, when the follower is in working and non-working states and the clearance between the follower and the guide rail is changed, the driver moves through the horizontal sliding rail, the sliding block and the follower, the original precision is still kept with the guide rail, and the normal working is ensured.

Description

Self-adaptive synchronous driving mechanism

Technical Field

The invention relates to the field of mechanical equipment, in particular to a self-adaptive synchronous driving mechanism.

Background

The deck structure of the ocean platform mainly comprises a panel, a steel beam, a supporting column and other components, wherein installation identification positions of the components such as the section steel beam and the supporting column need to be planned and drawn on the deck panel in the manufacturing process, then the components such as the section steel beam are installed, and finally the deck structure is automatically welded.

At present, the intelligent group is generally adopted to realize full-automatic line marking and group assembling on the portal. The intelligent pairing portal is generally driven by a driving gear and a rack. The load difference of the gantry system is large when the gantry system works and does not work, certain errors exist in the acceleration and deceleration process, and the precision requirement of the running driving gear is higher than the running precision of the gantry, so that the gantry system and the driving gear are easy to influence each other, extra load is generated, and normal work is influenced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a self-adaptive synchronous driving mechanism, which realizes the isolation of driving and a gantry and avoids mutual influence.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a self-adaptation synchronous drive mechanism, includes driving piece, follower and guide rail, the driving piece with the follower all install in on the guide rail, the rear end of driving piece is fixed with the slider, the front end of follower is provided with the horizontal slide rail of perpendicular to guide rail, horizontal slide rail is used for the butt joint the slider.

In another preferred embodiment, a first concave-convex pattern is arranged in the horizontal sliding rail, a second concave-convex pattern is arranged on the surface of the sliding block, and when the horizontal sliding rail is connected with the sliding block, the first concave-convex pattern is embedded with the second concave-convex pattern.

In another preferred example, the driving member includes a bracket, and an idler module and a driving module mounted on the bracket, the idler module and the driving module respectively clamp the guide rail from two sides, and the horizontal sliding rail is fixed on the bracket.

In another preferred example, the driving module comprises a motor and a driving gear connected with an output shaft of the motor, one side of the guide rail is provided with a rack, and the driving gear is meshed with the rack.

In another preferred example, the guide wheel module includes an eccentric shaft and a guide wheel, the eccentric shaft includes a first shaft and a second shaft, the second shaft is fixed on the bottom of the first shaft, the axes of the first shaft and the second shaft are staggered, and the guide wheel is fixed on the second shaft for contacting the guide rail.

In another preferred embodiment, the guide wheel module further includes an anti-rotation plate, the anti-rotation plate is provided with a through hole having a geometric shape, the top of the first shaft rod is provided with a cylinder having a shape matching the through hole, and after the through hole of the anti-rotation plate is connected to the cylinder, one side edge of the anti-rotation plate abuts against the bracket to limit the rotation of the anti-rotation plate.

In another preferred example, the outer edge of the anti-rotation plate is a first regular polygon, the through hole of the anti-rotation plate is a second regular polygon, and the first regular polygon and the second regular polygon are coaxially arranged.

In another preferred example, a threaded column is arranged at the top of the first shaft rod, a mounting hole is arranged on the support, and the threaded column passes through the mounting hole and then is fixed through a nut.

In another preferred embodiment, the guide wheel is an annular guide wheel, and is sleeved on the outer ring of the second shaft rod.

In another preferred example, the follower is a mast foot mounted on the rail by a wheel.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention arranges a horizontal sliding track and a sliding block between the driver and the follower, when the follower is in working and non-working states and the clearance between the follower and the guide track changes, the driver moves through the horizontal sliding track and the sliding block and the follower relative to each other, and the driver and the guide track still keep the original precision, thereby ensuring the normal working.

2. Horizontal slide rail and slider are provided with the concave-convex line of gomphosis each other, improve connection stability.

3. The driving module drives the mechanism to move through the driving gear structure matched with the guide wheel, and the movement is smooth and stable.

4. The eccentric shaft is arranged in the guide wheel module to fix the guide wheel, the gap between the guide wheel and the driving module can be adjusted by rotating the eccentric shaft, the most appropriate gap between the guide wheel and the guide rail is ensured, the running precision of the driving module is ensured, and the driving module can be applied to intelligent pairing gantries.

5. The guide wheel module is provided with an anti-rotation plate, so that the adjusted eccentric shaft can be locked, the rotation angle of the eccentric shaft is prevented from changing, and the reliability is high.

6. The outer edge and the through hole of the anti-rotation plate adopt the concentric regular polygon, the shape structure can evenly subdivide the rotating angle, and meanwhile, the angle fine adjustment and the fixation of the eccentric shaft are considered.

7. The guide wheel adopts the annular guide wheel, simple structure, and stability is good.

Drawings

Fig. 1 is a schematic structural diagram of the bottom of a smart portal stand bar.

FIG. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic front view of the present invention.

Fig. 4 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 3.

Fig. 5 is a schematic structural view of the eccentric shaft.

FIG. 6 is a schematic sectional view taken along line B-B of FIG. 5.

FIG. 7 is a schematic structural view of an anti-rotation plate.

Reference numerals are as follows: 1. the device comprises a driving piece 11, a support 111, a side plate 112, a top plate 113, a bottom plate 12, a motor 13, a driving gear 14, an eccentric shaft 141, a first shaft rod 142, a second shaft rod 15, a guide wheel 16, an anti-rotation plate 17, a threaded column 18, a column body 19, a connecting part 2, a follower 3, a guide rail 31, a rack 4, a sliding block 5, a horizontal sliding rail 6 and a wheel.

Detailed Description

Unless otherwise defined, technical or scientific terms used herein in the specification and claims should have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

All numerical values recited herein as between the lowest value and the highest value are intended to mean all values between the lowest value and the highest value in increments of one unit when there is more than two units difference between the lowest value and the highest value.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, 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.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail below with reference to specific embodiments and with reference to the accompanying drawings. It is noted that in the detailed description of these embodiments, in order to provide a concise description, all features of an actual implementation may not be described in detail.

Examples

As shown in fig. 1, the present embodiment provides a bottom structure of a smart portal, including a driver 1, a follower 2, and a guide rail 3. The driving member 1 and the follower 2 are arranged in front and back and connected, and are jointly arranged on the guide rail 3, and the driving member 1 can drive the follower 2 to move. In the present embodiment, the follower 2 is a mast foot, in particular mounted on the guide rail 3 by means of wheels 6, see fig. 2.

As shown in fig. 2, a slider 4 is fixed to the rear end of the driver 1, a horizontal rail 5 perpendicular to the guide rail 3 is provided to the front end of the follower 2, and the driver 1 and the follower 2 are fitted and connected to each other via the slider 4 and the horizontal rail 5. Therefore, when the gap between the follower 2 and the guide rail 3 changes in the working state and the non-working state, the driver 1 moves relative to the guide rail 3 through the horizontal sliding rail 5, the sliding block 4 and the follower 2, the original precision is kept between the driver and the guide rail 3, and the normal working can be ensured. In another preferred embodiment, a first concave-convex pattern is arranged in the horizontal sliding rail 5, a second concave-convex pattern is arranged on the surface of the sliding block 4, and when the horizontal sliding rail 5 is connected with the sliding block 4, the first concave-convex pattern is embedded with the second concave-convex pattern, so that the smoothness and the stability of connection of the two are improved.

As shown in fig. 3 and 4, the driving member 1 includes a bracket 11, and an idler module and a driving module, which clamp the guide rail 3 from both sides, respectively, are mounted on the bracket 11.

The bracket 11 comprises a side plate 111, a top plate 112 and a bottom plate 113, wherein the front side of the side plate 111 is connected with the top plate 112 and the bottom plate 113, and the top plate 112 and the bottom plate 113 are arranged in parallel up and down. The side plate 111 is provided at the rear side with a slider 4 for abutting against the follower 2. Each of the guide wheel modules includes an eccentric shaft 14, a guide wheel 15, and an anti-rotation plate 16, the eccentric shaft 14 is fixed on the top plate 112 and the bottom plate 113, the guide wheel 15 is installed at the bottom of the eccentric shaft 14, and the anti-rotation plate 16 is installed at the top of the eccentric shaft 14. The driving module comprises a motor 12 and a driving gear 13 connected with an output shaft of the motor 12, a rack 31 is arranged on one side of the guide rail 3, and the driving gear 13 is meshed with the rack 31. The guide rail 3 is thereby clamped between the guide wheel 15 and the drive gear 13, and the entire entraining mechanism is moved on the guide rail 3 when the motor 12 is started.

As shown in fig. 5 and 6, the eccentric shaft 14 includes a first shaft rod 141 and a second shaft rod 142, the second shaft rod 142 is fixed to the bottom of the first shaft rod 141, and the axes of the first shaft rod 141 and the second shaft rod 142 are arranged to be offset. Meanwhile, the diameter of the second shaft 142 is larger than that of the first shaft 141, so that a bottom stepped surface is formed between the second shaft 142 and the first shaft 141. The connecting part 19, the geometric column 18 and the threaded column 17 are arranged on the top of the first shaft rod 141 from bottom to top in sequence. The diameter of the connecting portion 19 is smaller than the diameter of the first shaft 141, so that a top step surface is formed between the connecting portion 19 and the top of the first shaft 141. Two mounting holes are formed in the top plate 112 and the bottom plate 113, and the eccentric shaft 14 is fixed in the mounting holes, which is specifically shown in fig. 3 and 5: the first shaft rod 141 sequentially penetrates through the mounting hole of the bottom plate 113 and the mounting hole of the top plate 112, and the bottom step surface is abutted against the bottom surface of the bottom plate 113 for limiting; meanwhile, the connection portion 19 of the first shaft rod 141 penetrates the mounting hole of the top plate 112. It is noted that the height of the connecting portion 19 is slightly less than the thickness of the top plate 112, and the geometric post 18 and threaded post 17 protrude from the top of the top plate 112. The rotation-preventing plate 16 is firstly sleeved on the column body 18, and then the nut is screwed on the threaded column 17 to fix the whole eccentric shaft 14 and the bracket 11. The anti-rotation plate 16 is provided with a through hole matching the geometric cylinder 18, and one side of the anti-rotation plate 16 abuts against the side plate 111 to prevent itself from rotating. Therefore, the rotation-preventing plate 16 can lock the adjusted eccentric shaft 14, and the rotation angle is prevented from changing. The guide wheel 15 is an annular guide wheel 15, and is sleeved on the outer ring of the second shaft rod 142, and the annular guide wheel 15 is simple in structure and good in stability.

In the using process: the guide wheel 15 is fixed by arranging the eccentric shaft 14, and the gap between the guide wheel 15 and the driving gear, namely the gap between the guide wheel 15, the driving gear and the guide rail 3 can be adjusted by rotating the angle of the eccentric shaft 14, so that the most appropriate gap adjustment is realized, and the installation accuracy is ensured. After the gap adjustment is completed, the rotation prevention plate 16 is fitted over the column 18 and then the nut is tightened to fix the position.

In another preferred embodiment, the outer edge and the through hole of the rotation-preventing plate 16 are coaxial regular polygons, and the shape structure can evenly subdivide the rotation angle and simultaneously take account of the fine angle and the fixation of the eccentric shaft 14. For example, as shown in fig. 7, the anti-rotation plate 16 has a first regular polygon with the number of sides; the through holes of the anti-rotation plates 16 are second regular polygons, and the number of the sides is as follows; the regular octagon and the regular hexagon have a certain deviation angle with each other. Therefore, when the side edge of each regular octagon is attached to the side plate 111, the inner eccentric shaft 14 can be adjusted by 6 angles, so that the inner and outer 48 combinations can divide the circumference uniformly, the eccentricity is divided uniformly, and the stability and the accuracy are both considered.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a self-adaptation synchronous driving mechanism, its characterized in that, includes driving piece (1), follower (2) and guide rail (3), driving piece (1) with follower (2) all install in on guide rail (3), the rear end of driving piece (1) is fixed with slider (4), the front end of follower (2) is provided with horizontal slide rail (5) of perpendicular to guide rail (3), horizontal slide rail (5) are used for the butt joint slider (4).

2. The adaptive synchronous driving mechanism according to claim 1, wherein a first concave-convex pattern is provided in the horizontal sliding rail (5), a second concave-convex pattern is provided on the surface of the sliding block (4), and when the horizontal sliding rail (5) is connected to the sliding block (4), the first concave-convex pattern is embedded with the second concave-convex pattern.

3. An adaptive synchronous drive according to claim 1, characterized in that the drive member (1) comprises a bracket (11), and a guide wheel module and a drive module mounted on the bracket (11), the guide wheel module and the drive module respectively clamping the guide rail (3) from both sides, the horizontal sliding rail (5) being fixed on the bracket (11).

4. An adaptive synchronous drive mechanism according to claim 3, characterized in that the drive module comprises a motor (12) and a drive gear (13) connected to an output shaft of the motor (12), a rack gear (31) is arranged on one side of the guide rail (3), and the drive gear (13) is meshed with the rack gear (31).

5. An adaptive synchronous drive mechanism according to claim 3, characterized in that the guide wheel module comprises an eccentric shaft (14) and a guide wheel (15), the eccentric shaft (14) comprises a first shaft rod (141) and a second shaft rod (142), the second shaft rod (142) is fixed at the bottom of the first shaft rod (141), the axes of the first shaft rod (141) and the second shaft rod (142) are arranged in a staggered manner, and the guide wheel (15) is fixed on the second shaft rod (142) for contacting the guide rail (3).

6. The self-adaptive synchronous driving mechanism is characterized in that the guide wheel module further comprises an anti-rotation plate (16), a through hole with a geometric shape is formed in the anti-rotation plate (16), a column body (18) matched with the through hole in shape is arranged at the top of the first shaft rod (141), after the through hole of the anti-rotation plate (16) is connected with the column body (18), one side edge of the anti-rotation plate (16) is attached to the support (11), and the rotation of the anti-rotation plate (16) is limited.

7. The adaptive synchronous drive mechanism according to claim 6, wherein the outer edge of the anti-rotation plate (16) is a first regular polygon, the through hole of the anti-rotation plate (16) is a second regular polygon, and the first regular polygon and the second regular polygon are coaxially arranged.

8. The adaptive synchronous drive mechanism according to claim 5, wherein a threaded column (17) is arranged at the top of the first shaft (141), a mounting hole is formed in the bracket (11), and the threaded column (17) is fixed through a nut after passing through the mounting hole.

9. An adaptive synchronous drive mechanism according to claim 5, wherein the guide wheel (15) is a ring-shaped guide wheel, and is sleeved on the outer ring of the second shaft rod (142).

10. An adaptive synchronous drive mechanism according to claim 1, characterized in that the follower (2) is a mast foot mounted on the guide rail (3) by means of wheels (6).