A device for turning over a draft tube

Abstract

The application relates to the technical field of ship processing, and provides a turning-over device for a flow guide pipe, which comprises a base, a supporting assembly, a rotating frame, a driving assembly and a bracket assembly; the supporting assembly is arranged on the base; the rotating frame is a semicircular structure and can slidably abut against the supporting assembly; the driving assembly is arranged on the base; the driving assembly is connected with the rotating frame and is used for driving the rotating frame to rotate along the direction of the outer circumferential wall of the rotating frame; and the bracket assembly is arranged on the rotating frame and is used for lifting the flow guide pipe. The turning-over device for the flow guide pipe avoids quality safety hazards, makes the turning-over of the flow guide pipe easy, improves the turning-over efficiency, is safe and reliable, and reduces the labor intensity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship processing, in particular to a turning device for a flow guide pipe. BACKGROUND

[0002] The conventional turning of the flow guide pipe is performed by using a crane and a hand-operated hoist. However, most of the flow guide pipes, especially the air flow guide pipes, are made of composite materials such as glass fiber reinforced plastic or carbon fiber. The surface of the flow guide pipe is generally made of glass fiber reinforced plastic, the middle part is made of composite material, and the inner part is made of steel structure. The shape of the flow guide pipe is a double-curved surface wing type ring cavity structure. Overall, the linear type of the flow guide pipe is complex, and the surface is brittle. In the past, the installation of the flow guide pipe was performed after the installation of the tail shaft and the propeller. The turning method was to use a crane and a hand-operated hoist in cooperation. The cable was used to bind the flow guide pipe. The manual operation was used to bind the flow guide pipe with ropes, to tie the hoisting knots, and to adjust the position of the hoisting knots many times to adjust the suitable hoisting posture of the flow guide pipe and the turning state. This manual operation method of binding the flow guide pipe with ropes and turning the flow guide pipe with the hoist completely depends on the skill and experience of the operator to ensure the stability of the binding of the flow guide pipe, the appropriate position of the knot, the accuracy of the turning and the adjustment of the hoist. There are many uncontrollable factors, and the binding time of the flow guide pipe is long. Especially, the surface of the flow guide pipe is brittle and has low hardness, and the ability to resist tension and pressure is low. The surface and the circular arc transition position of the flow guide pipe are easily damaged and broken. During the turning of the flow guide pipe by 90 degrees, the turning of the flow guide pipe has a slow rising process. This turning needs repeated adjustment of the hoist. The labor intensity is large, the operation time is long, and the hoist hanging position and the binding are often adjusted repeatedly or many times to normally turn the flow guide pipe. Especially, the surface of the flow guide pipe is brittle and has low strength, which is easily scratched and squeezed to break the flow guide pipe cavity, affecting the smoothness of the surface of the flow guide pipe, the smoothness of the flow guide pipe, the flow direction of the flow guide pipe, and the quality and safety hidden danger. SUMMARY

[0003] The purpose of the present application is to provide a turning device for a flow guide pipe, which avoids quality and safety hidden dangers, makes the turning of the flow guide pipe easy, improves the turning efficiency, is safe and reliable, and reduces the labor intensity.

[0004] In order to solve the above technical problems, the present application provides a turning device for a flow guide pipe, which comprises a base, a support assembly, a rotating frame, a driving assembly and a bracket assembly. The support assembly is arranged on the base. The rotating frame is a semicircular structure which is slidably abutted to the support assembly. The driving assembly is arranged on the base. The driving assembly is connected to the rotating frame for driving the rotating frame to rotate along the outer circumferential wall thereof. The bracket assembly is arranged on the rotating frame for lifting the flow guide pipe.

[0005] Preferably, the support assembly comprises a support base and a support roller, the support base is arranged on the base, and two ends of the support roller are arranged on the support base through bearings; the outer circumferential wall of the rotating frame abuts against the support roller.

[0006] Preferably, the support assembly further comprises a clamping roller, the clamping roller is arranged on the support base and abuts against the side wall of the rotating frame.

[0007] Preferably, the support assembly is arranged in four groups, and two groups are symmetrically arranged.

[0008] Preferably, the rotating frame is arranged in two groups of oppositely arranged rotating frames, and the two rotating frames are connected through a connecting rod; each rotating frame abuts against two groups of the support assembly.

[0009] Preferably, the driving assembly comprises a driving chain, a driving wheel, a first driving shaft and a first driving motor; the first driving motor is arranged on the base; the first driving shaft is arranged on the base through a bearing, and one end of the first driving shaft is connected to the first driving motor, and the other end of the first driving shaft is connected to the driving wheel; the driving chain is arranged along the outer circumferential wall of the rotating frame, and the driving chain is meshingly connected with the driving wheel.

[0010] Preferably, the rotating frame is provided with a climbing ladder.

[0011] Preferably, the rotating frame has a horizontal mounting surface and a vertical mounting surface; the bracket assembly comprises four groups of support brackets, and the four groups of support brackets are symmetrically arranged on the horizontal mounting surface in pairs; each group of support brackets comprises a support plate, a support block, a first adjusting screw rod, a first screw nut and an adjusting bolt, the support plate is arranged on the rotating frame, and the support plate is provided with a slide; the first adjusting screw rod is arranged on the support plate through a bearing, and the first adjusting screw rod is arranged in parallel with the slide; the first screw nut is rotatably arranged on the first adjusting screw rod; the support block is slidably arranged on the slide, and the support block is connected with the first screw nut; the adjusting bolt is connected with one end of the first adjusting screw rod; wherein, rotating the adjusting bolt drives the first adjusting screw rod to rotate, thereby realizing the sliding of the support block along the slide.

[0012] Preferably, the bracket assembly further comprises two groups of lifting brackets, the lifting brackets are arranged on the vertical mounting surface, each group of the lifting brackets comprises a second driving motor, two oppositely arranged second adjusting lead screws, two second screw nuts, a lifting plate and a lifting block, the lifting plate is arranged on the rotating frame, and the second driving motor is arranged on the lifting plate; one end of each second adjusting lead screw is arranged on the rotating frame through a bearing and is connected with the second driving motor, and the other end of each second adjusting lead screw is slidably inserted into the lifting block; the second screw nuts are correspondingly and rotatably arranged on the second adjusting lead screws; and the lifting block is connected with the second screw nuts.

[0013] Preferably, the turning-over device further comprises a pressing assembly arranged on the top of the rotating frame, and the pressing assembly comprises a pressing plate and a third driving motor, the third driving motor is arranged on the rotating frame, and the pressing plate is connected with the third driving motor.

[0014] The turning-over device for the guide pipe has the following beneficial effects:

[0015] The turning-over device for the guide pipe can complete a maximum 90-degree turning-over of the guide pipe, replaces the traditional manual binding of the guide pipe by using a rope and the turning-over method by using a crane and a hand-operated hoist, avoids the problems that the guide pipe is difficult to be stably bound by the rope and the lifting point of the hoist and the knot is not easy to adjust, avoids the quality safety hidden danger, makes the turning-over of the guide pipe easy, improves the turning-over efficiency, is safe and reliable, and reduces the labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view structural schematic diagram of the turning-over device for the guide pipe provided by the embodiment of the present application;

[0017] Figure 2 is a side view structural schematic diagram of the turning-over device for the guide pipe provided by the embodiment of the present application;

[0018] Figure 3 is Figure 2 is an enlarged view of A of

[0019] Figure 4 is a top view structural schematic diagram of the turning-over device for the guide pipe provided by the embodiment of the present application;

[0020] Figure 5 is a structural schematic diagram of the support assembly provided by the embodiment of the present application;

[0021] Figure 6 is a use state diagram of the turning-over device for the guide pipe provided by the embodiment of the present application;

[0022] Figure 7is a turnover completion state diagram of the turnover device of the guide pipe provided by the embodiment of the application.

[0023] Reference signs:

[0024] 1, base; 2, support assembly; 21, support seat; 22, support roller; 23, clamping roller; 3, rotating frame; 4, driving assembly; 41, driving chain; 42, driving wheel; 43, first driving shaft; 44, first driving motor; 5, bracket assembly; 51, support bracket; 511, support block; 52, lifting bracket; 521, second driving motor; 522, lifting block; 6, pressing assembly; 61, pressing plate; 62, third driving motor; 7, climbing ladder; 8, guide pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Reference Figures 1-5The preferred embodiment of the present application provides a turning device for a flow guide pipe, which comprises a base 1, a supporting assembly 2, a rotating frame 3, a driving assembly 4 and a bracket assembly 5; the supporting assembly 2 is arranged on the base 1; the rotating frame 3 is a semicircular structure and is slidably abutted against the supporting assembly 2; the driving assembly 4 is arranged on the base 1; the driving assembly 4 is connected with the rotating frame 3 and is used to drive the rotating frame 3 to rotate along the outer circumferential wall thereof; and the bracket assembly 5 is arranged on the rotating frame 3 and is used to lift the flow guide pipe 8.

[0029] In some preferred embodiments of the present application, the supporting assembly 2 comprises a supporting seat 21 and a supporting roller 22; the supporting seat 21 is arranged on the base 1; the two ends of the supporting roller 22 are arranged on the supporting seat 21 through bearings; and the outer circumferential wall of the rotating frame 3 is abutted against the supporting roller 22. In this way, the supporting roller 22 can support the rotating frame 3; when the rotating frame 3 rotates, the supporting roller 22 will also rotate; therefore, the supporting roller 22 will not hinder the rotation of the rotating frame 3, and the pressure on the driving assembly 4 is reduced.

[0030] In some preferred embodiments of the present application, the supporting assembly 2 further comprises a clamping roller 23; the clamping roller 23 is arranged on the supporting seat 21 and is abutted against the side wall of the rotating frame 3. In this way, the clamping roller 23 can support the two side surfaces of the rotating frame 3, thereby avoiding the deviation of the rotating frame 3; further, the two sides of the rotating frame 3 are both provided with the clamping roller 23, thereby achieving clamping.

[0031] In some preferred embodiments of the present application, the supporting assembly 2 is provided with four groups which are symmetrically arranged in pairs. In this way, through the four groups of supporting assemblies 2, the rotating frame 3 can be supported at four supporting points, thereby further achieving stable support.

[0032] In some preferred embodiments of the present application, the rotating frame 3 is arranged as two groups of oppositely arranged rotating frames 3; the two rotating frames 3 are connected through a connecting rod; and each rotating frame 3 is abutted against two groups of supporting assemblies 2. In this way, the two groups of rotating frames 3 can ensure that the support and fixation of the flow guide pipe 8 are more stable.

[0033] In some preferred embodiments of the present application, the driving assembly 4 comprises a driving chain 41, a driving wheel 42, a first driving shaft 43 and a first driving motor 44; the first driving motor 44 is arranged on the base 1; the first driving shaft 43 is arranged on the base 1 through a bearing and is connected with the first driving motor 44 at one end and with the driving wheel 42 at the other end; and the driving chain 41 is arranged along the outer circumferential wall of the rotating frame 3 and is meshingly connected with the driving wheel 42. Specifically, the first driving motor 44 drives the first driving shaft 43 to rotate, the first driving shaft 43 drives the driving wheel 42 to rotate, the driving wheel 42 drives the driving chain 41 to move, and the rotating frame 3 is moved.

[0034] Further, the first driving shaft 43, the driving wheel 42 and the driving chain 41 are all provided with two, and are arranged one by one with the two rotating frames 3, so as to ensure the stability of the rotating frame 3 in the rotating process.

[0035] In some preferred embodiments of the present application, the rotating frame 3 is provided with a climbing ladder 7. In this way, the climbing ladder 7 can facilitate the entry of the staff and the operation of the device.

[0036] In some preferred embodiments of the present application, the rotating frame 3 has a horizontal mounting surface and a vertical mounting surface; the bracket assembly 5 includes four groups of supporting brackets 51, and the four groups of supporting brackets 51 are symmetrically arranged on the horizontal mounting surface in pairs; each group of supporting brackets 51 includes a supporting plate, a supporting block 511, a first adjusting lead screw, a first lead screw nut and an adjusting bolt, the supporting plate is arranged on the rotating frame 3, and the supporting plate is provided with a slide; the first adjusting lead screw is arranged on the supporting plate through a bearing, and is arranged in parallel with the slide; the first lead screw nut is rotatably arranged on the first adjusting lead screw; the supporting block 511 is slidably arranged on the slide, and is connected with the first lead screw nut; the adjusting bolt is connected with one end of the first adjusting lead screw; wherein, the rotating adjusting bolt drives the first adjusting lead screw to rotate, drives the first lead screw nut to rotate, and then realizes the sliding of the supporting block 511 along the slide. Specifically, the adjusting bolt can also be replaced by a motor to drive the first adjusting lead screw to rotate. The horizontal mounting surface and the vertical mounting surface form an L-shaped structure.

[0037] In some preferred embodiments of the present application, the bracket assembly 5 further includes two groups of lifting brackets 52, and the lifting brackets 52 are arranged on the vertical mounting surface; each group of lifting brackets 52 includes a second driving motor 521, two oppositely arranged second adjusting lead screws, two second lead screw nuts, a lifting plate and a lifting block 522, the lifting plate is arranged on the rotating frame 3, and the second driving motor 521 is arranged on the lifting plate; one end of the two second adjusting lead screws is arranged on the rotating frame 3 through a bearing, and is connected with the second driving motor 521, and the other end is slidably inserted into the lifting block 522; the second lead screw nut is correspondingly and rotatably arranged on the second adjusting lead screw; the lifting block 522 is connected with the two second lead screw nuts. Specifically, the second driving motor 521 drives the second adjusting lead screw to rotate, one end of the second adjusting lead screw is connected with the second driving motor 521, and then rotates in place, and since the other end of the second adjusting lead screw is slidably inserted into the lifting block 522, when the second adjusting lead screw rotates, the second lead screw nut drives the lifting block 522 to slide along the second adjusting lead screw, and then controls the lifting of the lifting block 522. And the second adjusting lead screw is provided with two, which can limit the lifting block 522 from rotating with the second adjusting lead screw.

[0038] It should be noted that the end of the second adjusting lead screw connected with the bearing is provided with a smooth structure, and the end close to the lifting block 522 is provided with a threaded structure.

[0039] In some preferred embodiments of the present application, the turning-over device further comprises a pressing assembly 6 arranged on the top of the rotating frame 3, which comprises a pressing plate 61 and a third driving motor 62 arranged on the rotating frame 3, and the pressing plate 61 is connected with the third driving motor 62. In this way, the pressing assembly 6 can press the flow guide pipe 8 to ensure the stability of the rotation.

[0040] Referring to Figure 6 and Figure 7 , the turning-over device for the flow guide pipe 8 of the preferred embodiment of the present application makes full use of the rotating frame 3, which is driven to rotate by the driving wheel 42 and the chain, so as to realize the rotation of the flow guide pipe 8 by 90 degrees. The rotating frame 3 is designed to be installed on the bottom frame of the base 1, and the support assembly 2 is installed on the bottom frame, and four sets of support assemblies 2 are arranged to support the rotating frame 3, and the support rollers 22 of the support assembly 2 are provided with lateral clamping rollers 23 on both sides to prevent lateral deviation. The driving chain 41 is arranged on the rotating frame 3, and the chain transmission is reliable, has strong overload capacity, can work well under low speed and heavy load, will not slip, the transmission is reliable, and can have a larger center distance, and has low requirements for the environment, and is very suitable for the 90-degree turning of the flow guide pipe 8. The rotating frame 3 is provided with the flow guide pipe 8 support bracket 51 assembly 5 and the lifting bracket 52 assembly 5, so as to be suitable for clamping and fixing the flow guide pipe 8, the support bracket 51 is distributed at four corners by 72 degrees, and the lifting bracket 52 is arranged on both sides to support the stress of the flow guide pipe 8 during axial turning, the bracket is in close contact with the inner wall and the outer wall shape of the large head front edge of the flow guide pipe 8, the contact part between the wooden bracket and the flow guide pipe 8 is soft protected by thick geotextile and canvas pad, and the two sides are provided with aluminum pressing strips. The top turning mechanism plays a safety protection role, and protects during the turning process. The design structure adopts a parallel shaft speed reducer, a large torque motor, and a sensor and a mechanical limit to control the angle.

[0041] The use process of the above-mentioned turning-over device for the flow guide pipe 8 is as follows: when used on a berth, the turning-over device for the flow guide pipe 8 is transported to the working site, that is, the berth near the flow guide pipe 8 installation, and is placed on the flat ground and fixed, the support bracket 51 is adjusted to the position with smaller diameter, the lifting bracket 52 is adjusted to the lowest position, the top pressing mechanism is turned to the open position, then the flow guide pipe 8 is horizontally lifted to the turning-over device for the flow guide pipe 8 in the transportation state, that is, the large head front edge end of the flow guide pipe 8 faces the special device for turning the flow guide pipe, then the support bracket 51 is adjusted, so that the four support brackets 51 are in good contact with the large head front edge end of the flow guide pipe 8 and the inner wall of the flow guide pipe 8, at this time, the lifting machine for lifting and transporting is loosened, then the lifting brackets 52 on the left and right side walls are lifted to support the two side walls of the flow guide pipe 8, and after confirming that the contact is good, the top turning mechanism is rotated to press the small end of the flow guide pipe 8.

[0042] After confirming the reliability, the turning-over operation of the draft tube 8 can be performed, the machine is started, the driving wheel 42 is slowly rotated counterclockwise, the driving wheel 42 drives the driving chain 41, the driving chain 41 drives the rotating frame 3 to rotate clockwise, with the clockwise rotation of the rotating frame 3, the rotation is stopped at 90 degrees, and the 90-degree turning-over of the draft tube 8 is completed. At this time, the operator connects the crane and the draft tube 8 through the climbing ladder 7, and after the operation is hoisted and prepared, the compression assembly 6 is opened to the outer opening state, the lifting bracket 52 is lowered to leave the two side walls of the draft tube 8, the support bracket 51 is retracted to a smaller diameter position, the draft tube 8 after turning-over can be lifted away from the turning-over device and hoisted to the installation position on the ship, and the turning-over operation of the first draft tube 8 is completed, and the turning-over operation of the second and third draft tubes 8 can be continued, which ensures the safety and reliability of the turning-over, replaces the manual hoist turning-over, reduces the labor intensity, and ensures the quality.

[0043] In summary, the preferred embodiment of the present application provides a turning-over device for a draft tube, which has the following advantages compared with the prior art:

[0044] The turning-over device for the draft tube 8 of the present application can complete the maximum 90-degree turning-over of the draft tube 8, replaces the traditional method of manually binding the draft tube 8 with a rope and turning-over with a crane and a hand hoist, avoids the problems of unstable binding of the draft tube 8 with a rope and difficult adjustment of the hoist hanging and knot lifting points, and also avoids quality and safety hazards, so that the turning-over of the draft tube 8 is easy, the turning-over efficiency is improved, the safety is reliable, and the labor intensity is reduced.

[0045] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A device for turning over a guide tube, characterized in that, include: Base (1); Support component (2), the support component (2) being disposed on the base (1); A rotating frame (3) is a semi-circular structure that can slide against the support component (2). A drive assembly (4) is disposed on the base (1); the drive assembly (4) is connected to the rotating frame (3) and is used to drive the rotating frame (3) to rotate along its outer circumferential wall. A bracket assembly (5) is disposed on the rotating frame (3) and is used to support the guide pipe (8). The bracket assembly (5) also includes two sets of lifting brackets (52). The rotating frame (3) has a vertical mounting surface. The lifting brackets (52) are disposed on the vertical mounting surface. Each set of lifting brackets (52) includes a second drive motor (521), two opposing second adjusting screws, two second screw nuts, a lifting plate, and a lifting block (522). The lifting plate is disposed on the rotating frame (3), and the second drive motor (521) is disposed on the lifting plate. One end of each of the two second adjusting screws is disposed on the rotating frame (3) through a bearing and connected to the second drive motor (521). The other end is slidably inserted into the lifting block (522). The second screw nuts are rotatably disposed on the second adjusting screws. The lifting block (522) is connected to the two second screw nuts.

2. The overturning device for the guide tube according to claim 1, characterized in that: The support assembly (2) includes a support base (21) and a support roller (22). The support base (21) is disposed on the base (1), and the two ends of the support roller (22) are disposed on the support base (21) through bearings. The outer circumferential wall of the rotating frame (3) abuts against the support roller (22).

3. The turning device for the guide tube according to claim 2, characterized in that: The support assembly (2) further includes a clamping roller (23), which is disposed on the support base (21) and abuts against the side wall of the rotating frame (3).

4. The turning device for the guide tube according to claim 1, characterized in that: The support component (2) is provided in four sets. They are arranged symmetrically in pairs.

5. The turning device for the guide tube according to claim 4, characterized in that: The rotating frame (3) is configured as two sets of opposite rotating frames (3), and the two rotating frames (3) are connected by a connecting rod; each rotating frame (3) abuts against the two sets of support components (2).

6. The turning device for the guide tube according to claim 1, characterized in that: The drive assembly (4) includes a drive chain (41), a drive wheel (42), a first drive shaft (43), and a first drive motor (44); the first drive motor (44) is disposed on the base (1); the first drive shaft (43) is disposed on the base (1) through a bearing, and one end of it is connected to the first drive motor (44), and the other end is connected to the drive wheel (42); the drive chain (41) is disposed along the outer circumferential wall of the rotating frame (3), and the drive chain (41) is meshed with the drive wheel (42).

7. The turning device for the guide tube according to claim 1, characterized in that: The rotating frame (3) is equipped with a climbing ladder (7).

8. The overturning device for the guide tube according to claim 1, characterized in that: The rotating frame (3) has a horizontal mounting surface; the bracket assembly (5) includes four sets of support brackets (51), which are symmetrically arranged in pairs on the horizontal mounting surface; each set of support brackets (51) includes a support plate, a support block (511), a first adjusting screw, a first screw nut, and an adjusting bolt. The support plate is disposed on the rotating frame (3), and the support plate has a slide rail. The first adjusting screw is disposed on the support plate through a bearing and is parallel to the slide rail. The first screw nut is rotatably disposed on the first adjusting screw. The support block (511) is slidably disposed on the slide rail and is connected to the first screw nut. The adjusting bolt is connected to one end of the first adjusting screw. Rotating the adjusting bolt drives the first adjusting screw to rotate, thereby enabling the support block (511) to slide along the slide rail.

9. The turning device for the guide tube according to claim 1, characterized in that: The turning device also includes a pressing assembly (6), which is located on the top of the rotating frame (3). The pressing assembly (6) includes a pressing plate (61) and a third drive motor (62). The third drive motor (62) is located on the rotating frame (3), and the pressing plate (61) is connected to the third drive motor (62).

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