Special mould for repairing marine steel pile

Abstract

The utility model relates to a mould special for repairing a marine steel pile. Comprising a machine frame, supporting moving devices are installed above the front portion and the rear portion of the machine frame, a front rotary lifting device and a rear rotary lifting device are installed above the middle of the machine frame, and the machine further comprises a driving moving device. The supporting and moving device comprises a moving base, a roller support is installed on the moving base, and a middle supporting roller and two side supporting rollers are installed on the roller support. The rotary lifting device comprises a base fixedly connected with the machine frame, a middle shaft seat is installed in the middle of the base, a positive and negative spiral lead screw is installed on the middle shaft seat, a first moving seat is installed on a nut of the positive spiral part of the positive spiral lead screw, and a first jacking wheel is installed on the first moving seat. And a second moving seat is mounted on the nut at the reverse spiral part of the nut, and a second jacking wheel is mounted on the second moving seat. The utility model provides the special mould for repairing the marine steel pile, which is reasonable in structural design and has the functions of supporting, moving, rotating and lifting.

Description

Technical Field

[0001] The utility model belongs to the technical field of marine equipment, and in particular relates to a special mold for repairing marine steel piles. Background Art

[0002] Cutter suction dredgers are used in dredging construction projects. Due to their working characteristics, cutter suction dredgers require steel piles for positioning during cutter suction construction. The hydraulically driven steel piles are inserted downward below the mud surface at the bottom of the water. After positioning, the auger arm is lowered and the auger head is started to perform suction dredging on the mud surface at the bottom of the water. After a certain period of use, ship steel piles will be damaged due to factors such as wear and force. At this time, the steel piles need to be repaired. The repair operation is generally a welding operation. Specifically, the steel piles are lifted to the water surface and removed from the positioning device. They are welded and repaired on the deck or in the repair workshop by manual welding or equipment welding.

[0003] Steel piles are usually large diameter and heavy metal pipes, which are inconvenient to weld and repair. When welding and repairing, whether it is manual or equipment repair, it is generally required to move and rotate the steel piles, and the position to be welded and repaired is located by rotation, and the section to be repaired is found by movement. There is no jig for assisting the above-mentioned ship steel pile repair operation in the prior art, and it needs to be developed and designed according to the needs. Utility Model Content

[0004] The utility model provides a special jig for repairing marine steel piles with reasonable structural design and supporting movement and rotation and lifting functions to solve the technical problems existing in the known technology, thereby reducing the manpower burden of the repair operation and improving the repair efficiency during equipment repair.

[0005] The utility model adopts the following technical scheme to solve the technical problems existing in the known technology: a special jig for repairing marine steel piles comprises a frame, a supporting and moving device is installed on the front upper part and the rear upper part of the frame, a front and rear two rotating and lifting devices are installed on the middle upper part of the frame, and also comprises a driving and moving device for driving the supporting and moving device to move along the length direction; the supporting and moving device comprises a moving base, a roller bracket is installed on the moving base, a middle supporting roller and two side supporting rollers are installed on the roller bracket; the rotating and lifting device comprises a base fixedly connected to the frame, a middle shaft seat is installed in the middle part of the base, a positive and negative spiral screw is installed on the middle shaft seat, a first moving seat is installed on the nut of the positive spiral part thereof and a first top support wheel is installed on the first moving seat, a second moving seat is installed on the nut of the reverse spiral part thereof and a second top support wheel is installed on the second moving seat.

[0006] Preferably, the frame comprises two opposite side beams supported by multiple groups of support seats, and multiple supporting beams are installed between the two side beams.

[0007] Preferably: guide side plates with guide strip holes are installed on both sides of the base, and guide pins falling into the guide strip holes are installed on the sides of the first movable seat and the second movable seat.

[0008] Preferably: mounting seats with connection holes are installed at both ends of the bottom of the base, multiple groups of mounting holes are provided on the two side beams, and the mounting seats are fixedly connected to the side beams by bolts.

[0009] Preferably: slide rails are installed on the tops of the two side beams, and sliding blocks are installed at both ends of the bottom of the movable base, and the sliding blocks move along the slide rails.

[0010] Preferably: the driving moving device includes an inner shaft seat, an outer shaft seat and a driving screw installed therebetween, the nut arranged on the driving screw is fixedly connected to the movable base, and also includes a reduction motor, a pulley is installed on the output shaft of the reduction motor and the end of the driving screw, and the pulley is connected by belt drive.

[0011] The advantages and positive effects of the utility model are:

[0012] The utility model provides a special jig for repairing marine steel piles with a reasonable structural design. By installing two front and rear supporting mobile devices on a frame, stable support for the steel piles is achieved. The middle supporting roller and the side supporting rollers of the supporting mobile device limit the steel piles to prevent the steel piles from falling off the jig. Since the middle supporting roller and the side supporting roller are in rolling contact with the steel piles, the steel piles can be pushed forward or backward along the length direction of the jig to find the correct repair position. The two supporting mobile devices are each driven to move by a driving mobile device, so the distance between the two supporting mobile devices can be adjusted according to the length of the steel piles, resulting in a more reasonable and stable support effect on the steel piles.

[0013] By setting a manually adjustable rotary lifting device in the middle, the steel pile can be lifted and allowed to rotate. After lifting, the steel pile is separated from the supporting moving device. The rotary rotation action improves the operational convenience of repairing the steel pile. After completing the repair of one position, the next repair position is moved to a suitable position by rotating the steel pile. When manual repair is used, the mold can reduce the burden of manual operation, and when equipment is used for repair, it can improve the efficiency of repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle frame, the supporting moving device and the driving moving device;

[0016] Figure 3 yes Figure 1 Schematic diagram of the structure of the mid-slewing lifting device.

[0017] In the figure:

[0018] 1. Supporting and moving device; 1-1. Moving base; 1-2. Roller bracket; 1-3. Side supporting roller; 1-4. Middle supporting roller; 2. Driving and moving device; 2-1. Reduction motor; 2-2. Belt; 2-3. Inner shaft seat; 2-4. Driving screw; 2-5. Outer shaft seat; 2-6. Pulley; 3. Frame; 3-1. Support seat; 3-2. Side beam; 3-3. Support beam; 4. Rotating and lifting device; 4-1. Mounting seat; 4-2. Base; 4-3. Guide side plate; 4-4. First moving seat; 4-5. First top support wheel; 4-6. Middle shaft seat; 4-7. Second top support wheel; 4-8. Second moving seat; 4-9. Forward and reverse spiral screws; 4-10. Guide strip hole; 4-11. Guide pin; 5. Slide rail. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.

[0020] See also Figure 1 The special jig for repairing marine steel piles of the utility model comprises a frame 3, a supporting and moving device 1 is installed on the front upper part and the rear upper part of the frame 3, two front and rear rotary lifting devices 4 are installed on the middle upper part of the frame 3, and also comprises a driving and moving device 2 for driving the supporting and moving device 1 to move along the length direction.

[0021] Its working principle is: the ship steel pile is placed in a horizontal state on two supporting and moving devices 1, so that the rotary lifting device 4 does not contact the steel pile. At this time, the ship steel pile can move forward or backward along the length direction of the frame 3 or the axial direction of the steel pile itself, so that the position to be repaired on the steel pile can be moved to the middle position to facilitate the repair operation; according to the length of the steel pile, the position of the two supporting and moving devices 1 is adjusted forward and backward by two driving and moving devices 2; after the above-mentioned adjustment, the two rotary lifting devices 4 are manually operated to lift the steel pile for a certain distance, so that the steel pile is separated from the two supporting and moving devices 1, and the steel pile can rotate, which is convenient for the repair operation.

[0022] See also Figure 2 , we can see that:

[0023] The frame 3 includes two opposite side beams 3-2 supported by multiple sets of support seats 3-1, and multiple support beams 3-3 are installed between the two side beams 3-2. Each support beam 3-3 is installed and fixed between the bottoms of the two side beams 3-2, which can enhance the structural strength of the entire frame 3. The support seat 3-1 is composed of a ground beam and a supporting longitudinal beam. The ground beam is installed and fixed on the ground or on the deck of the ship equipment, so that the special repair jig can be stably fixed on the ground or on the deck.

[0024] See also Figure 2 , we can see that:

[0025] The supporting mobile device 1 includes a mobile base 1-1, on which a roller bracket 1-2 is installed, and on which a central support roller 1-4 and two side support rollers 1-3 are installed. The central support roller 1-4 and the two side support rollers 1-3 form a V-shaped structure, so when the steel pile falls on the supporting mobile device 1, the aforementioned V-shaped structure provides a certain limiting effect on the steel pile, and the steel pile will not fall off the supporting mobile device 1.

[0026] In this embodiment, slide rails 5 are installed on the top of the two side beams 3-2, and sliders are installed at both ends of the bottom of the mobile base 1-1. The sliders move along the slide rails 5. The cooperation between the sliders and the slide rails 5 improves the stability of the supporting mobile device 1 when it moves forward and backward.

[0027] See also Figure 2 , we can see that:

[0028] The driving mobile device 2 includes an inner shaft seat 2-3, an outer shaft seat 2-5 and a driving screw 2-4 installed therebetween. As shown in the figure, the inner shaft seat 2-3 and the outer shaft seat 2-5 are fixedly mounted on the supporting crossbeam 3-3. The screw nut arranged on the driving screw 2-4 is fixedly connected to the moving base 1-1, and also includes a reduction motor 2-1. A pulley 2-6 is installed on the output shaft of the reduction motor 2-1 and the end of the driving screw 2-4, and the pulley 2-6 is connected by a belt 2-2. The reduction motor 2-1 causes the driving screw 2-4 to rotate forward or reversely through the belt 2-2, thereby supporting the moving device 1 to move forward or backward.

[0029] See also Figure 3 , we can see that:

[0030] The rotary lifting device 4 includes a base 4-2 fixedly connected to the frame 3, a middle shaft seat 4-6 is installed in the middle of the base 4-2, a positive and negative spiral screw 4-9 is installed on the middle shaft seat 4-6, a first moving seat 4-4 is installed on the nut of the positive spiral part thereof, and a first top support wheel 4-5 is installed on the first moving seat 4-4, a second moving seat 4-8 is installed on the nut of the negative spiral part thereof, and a second top support wheel 4-7 is installed on the second moving seat 4-8. When the steel pile falls on the rotary lifting device 4, it is supported by the first top support wheel 4-5 and the second top support wheel 4-7, and the first top support wheel 4-5 and the second top support wheel 4-7 allow the steel pile to rotate.

[0031] As shown in the figure, the end of the forward and reverse spiral screw 4-9 is in a square head shape, which is convenient for using a tool to drive it to rotate. When the forward and reverse spiral screw 4-9 rotates forward, the first moving seat 4-4 and the second moving seat 4-8 move toward each other and the distance decreases, and the steel pile is lifted up to a certain height. When the forward and reverse spiral screw 4-9 rotates reversely, the first moving seat 4-4 and the second moving seat 4-8 move back to each other and the distance increases, and the steel pile is lowered to a certain height.

[0032] In this embodiment, guide side plates 4-3 with guide strip holes 4-10 are installed on both sides of the base 4-2, and guide pins 4-11 that fall into the guide strip holes 4-10 are installed on the sides of the first movable seat 4-4 and the second movable seat 4-8. By setting the guide pins 4-11 and moving the guide pins 4-11 in the guide strip holes 4-10, the stability of the movement of both the first movable seat 4-4 and the second movable seat 4-8 is improved.

[0033] In this embodiment, mounting seats 4-1 with connecting holes are installed at both ends of the bottom of the base 4-2, and multiple groups of mounting holes are provided on the two side beams 3-2. The mounting seats 4-1 and the side beams 3-2 are fixedly connected with bolts, so that the actual positions of the two rotary lifting devices 4 on the frame 3 can be adjusted and moved according to actual needs.

[0034] How to operate:

[0035] According to the size of the steel pile, adjust the positions of the front and rear supporting and moving devices 1 on the frame 3. Generally, the two supporting and moving devices 1 should be adjusted synchronously, that is, when the front supporting and moving device 1 is adjusted forward, the rear supporting and moving device 1 is adjusted backward and the moving distance is equal, and vice versa, when the front supporting and moving device 1 is adjusted backward, the rear supporting and moving device 1 is adjusted forward and the moving distance is equal; initially, the first moving seat 4-4 and the second moving seat 4-8 of the rotary lifting device 4 should be sufficiently far apart, so that when the steel pile is horizontally placed on the two supporting and moving devices 1 by a crane equipment, the steel pile can directly contact the V-shaped structure of the two supporting and moving devices 1 (a middle support roller 1-4 and two side support rollers 1-3), but not the first top support wheel 4-5 and the second top support wheel 4-7;

[0036] Push the steel pile forward or backward to move the location to be repaired to the approximate middle position;

[0037] After that, two operators synchronously adjust the two rotary lifting devices 4, and the first moving seats 4-4 and the second moving seats 4-8 of the two rotary lifting devices 4 move inward at the same time, then the distance between the first supporting wheel 4-5 and the second supporting wheel 4-7 is reduced and the steel pile is lifted to a certain height until the steel pile is separated from the middle supporting roller 1-4 and the side supporting roller 1-3 of the supporting moving device 1, at which time the steel pile can be flexibly rotated; the operator rotates the steel pile to move the position to be repaired to the front, and after repairing the current position manually or with equipment, the steel pile is rotated to rotate other positions to be repaired on the back to the front;

[0038] After completing the repair operation, two operators synchronously adjust the two rotary lifting devices 4, and the first moving seat 4-4 and the second moving seat 4-8 of the two rotary lifting devices 4 move outward at the same time, and the steel piles fall onto the two supporting moving devices 1 again. At this time, the steel piles can be moved forward or backward; after completing all the repairs, the steel piles are transferred using a crane.

Claims

1. A special jig for repairing marine steel piles, characterized by: The invention comprises a frame (3), a supporting and moving device (1) is installed on the front upper part and the rear upper part of the frame (3), two front and rear rotary lifting devices (4) are installed on the middle upper part of the frame (3), and a driving and moving device (2) is also included for driving the supporting and moving device (1) to move along the length direction; the supporting and moving device (1) comprises a moving base (1-1), a roller bracket (1-2) is installed on the moving base (1-1), and a middle supporting roller (1-4) and two side supporting rollers (1-3) are installed on the roller bracket (1-2); The rotary lifting device (4) comprises a base (4-2) fixedly connected to a frame (3); a middle shaft seat (4-6) is installed in the middle of the base (4-2); a positive and negative spiral screw (4-9) is installed on the middle shaft seat (4-6); a first movable seat (4-4) is installed on the nut of the positive spiral part thereof and a first top support wheel (4-5) is installed on the first movable seat (4-4); a second movable seat (4-8) is installed on the nut of the negative spiral part thereof and a second top support wheel (4-7) is installed on the second movable seat (4-8).

2. The special jig for repairing marine steel piles as claimed in claim 1, characterized in that: The frame (3) comprises two opposite side cross beams (3-2) supported by multiple groups of support seats (3-1), and multiple supporting cross beams (3-3) are installed between the two side cross beams (3-2).

3. The special jig for repairing marine steel piles as claimed in claim 2 is characterized in that: Guide side plates (4-3) with guide strip holes (4-10) are installed on both sides of the base (4-2), and guide pins (4-11) falling into the guide strip holes (4-10) are installed on the sides of the first movable seat (4-4) and the second movable seat (4-8).

4. The special jig for repairing marine steel piles as claimed in claim 3 is characterized in that: Mounting seats (4-1) with connection holes are installed at both ends of the bottom of the base (4-2), multiple groups of mounting holes are provided on the two side beams (3-2), and the mounting seats (4-1) and the side beams (3-2) are fixedly connected by bolts.

5. The special jig for repairing marine steel piles as claimed in claim 4 is characterized in that: Slide rails (5) are installed on the tops of the two side beams (3-2), and sliding blocks are installed at both ends of the bottom of the movable base (1-1), and the sliding blocks move along the slide rails (5).

6. The special jig for repairing marine steel piles as claimed in claim 5, characterized in that: The driving mobile device (2) comprises an inner shaft seat (2-3), an outer shaft seat (2-5) and a driving screw (2-4) installed therebetween, a nut arranged on the driving screw (2-4) is fixedly connected to the moving base (1-1), and also comprises a reduction motor (2-1), a pulley (2-6) is installed on the output shaft of the reduction motor (2-1) and the end of the driving screw (2-4), and the pulley (2-6) is connected by a belt (2-2) for transmission.

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