Gantry device for towing body retraction and deployment

Abstract

The present invention relates to a ship component, specifically a gantry device for towing body retraction and deployment. It includes a gantry, and support seats for connecting with the ship deck are hinged to the outer ends of the two vertical rods of the gantry. There is a first driving cylinder between the gantry and the support seat to drive the gantry to rotate in the vertical plane along the hinge point. The feature is that there is a connecting frame on the cross bar of the gantry, and a conical capture cover is provided at the bottom of the connecting frame. The end with a smaller diameter of the capture cover faces upward. There is a notch at the bottom of the capture cover, and an opening is provided on the side wall of the capture cover. The opening and the notch are located at both ends of a radial line of the capture cover. The retractable towing body using this gantry device is convenient for retraction and deployment.

Description

Technical Field

[0001] The present invention relates to a ship component, specifically a gantry device for towing body retraction and deployment, which is used in cooperation with a towing winch of a ship and is used to release, tow, and recover a ship towing body. Background Art

[0002] Traditional gantry devices for towing body retraction and deployment include a gantry and a driving cylinder, and pulleys are arranged inside the gantry. During use, the outer ends of the two vertical rods of the gantry are hinged to the stern deck outside the ship's towing winch, the driving cylinder is hinged between the gantry and the stern deck, and the cable of the towing winch passes through the pulley and is connected to the ship's towing body. With this gantry device, the towing body and the cable are in a freely movable fit. When the ship is retracting and deploying the towing body at a speed (1 kn - 3 kn), due to the effect of inertia, the towing body will sway, resulting in collisions between the towing body and the ship's hull and the gantry. Therefore, a ship using this gantry device cannot retract and deploy the towing body at a speed (1 kn - 3 kn). At the same time, since the towing body and the cable are in a freely movable fit, during retraction and deployment, in order to prevent collisions, it is necessary to manually restrain the sway of the towing body at the end of the cable, and the retraction and deployment process is not convenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a gantry device for towing body retraction and deployment. With this gantry device, the towing body can be retracted and deployed, and the retraction and deployment process is convenient.

[0004] To solve the above problems, the following technical solutions are provided:

[0005] The gantry device for towing body retraction and deployment of the present invention includes a gantry. On the outer ends of the two vertical rods of the gantry, there are support seats for connecting to the ship's deck, and there is a first driving cylinder between the gantry and the support seats to drive the gantry to rotate in a vertical plane along the hinge point. The feature is that there is a connecting frame on the cross bar of the gantry. At the bottom of the connecting frame, there is a conical capture cover with the smaller diameter end facing upwards. There is a notch at the bottom of the capture cover, and there is an opening on the side wall of the capture cover. The opening and the notch are located at both ends of a radial line of the capture cover.

[0006] On each of the support seats, there are a movable arm and a fixed arm. One end of the movable arm is hinged at the hinge point between the corresponding support seat and the vertical rod of the gantry. A first driving cylinder is hinged between the middle of the movable arm and the corresponding vertical rod of the gantry. A second driving cylinder is hinged between the end of the movable arm away from the support seat and the support seat. One end of each fixed arm is fixed on the support seat inside the gantry. A short connecting rod is hinged on the cross bar of the gantry corresponding to the fixed arm. A long connecting rod is hinged between the end of the fixed arm away from the support seat and the corresponding short connecting rod; an installation plate is fixed between the two short connecting rods, and the connecting frame is fixed on the installation plate.

[0007] The connecting frame includes two upper connecting plates arranged vertically, which are arranged parallel to each other, and are fixed on the mounting plate. Swing rods are hinged on both ends of the lower sides of the two upper connecting plates. There is a horizontally arranged upper support plate between the two upper connecting plates, and the lower ends of the swing rods are hinged on the upper support plate. The swing rods are arranged parallel to each other. An upper pulley is connected to the mounting plate between the two upper connecting plates. The upper pulley is arranged vertically and parallel to the upper connecting plates. Lower connecting plates arranged parallel to each other are fixed on both sides of the lower plate surface of the upper support plate. The lower connecting plates are parallel to the upper connecting plates. There is a lower pulley between the two lower connecting plates. The lower pulley and the upper pulley are in the same vertical plane, and the upper pulley and the lower pulley are staggered front to back. There is a lower support plate between the lower edges of the two lower connecting plates, the upper end of the capture cover is fixed on the lower plate surface of the lower support plate, the upper support plate and the lower support plate corresponding to the capture cover are provided with clearance holes for facilitating the passage of cables, and the upper pulley and the lower pulley are respectively located on both sides of the clearance holes.

[0008] The above solution has the following advantages:

[0009] The portal frame crossbar of the portal frame device for folding and releasing the towing body of the present invention is provided with a connecting frame, and a conical capture cover is provided at the bottom of the connecting frame, and the end of the capture cover with a small diameter faces upward, and a notch is provided at the bottom of the capture cover, and the side wall of the capture cover has an opening, and the opening is arranged along the axial direction of the capture cover, and the opening and the notch are located at the two ends of a radial line of the capture cover. When in use, a conical boss is provided on the upper surface of the towing body, and a radially arranged round rod is provided on the outer surface of the conical boss. When folding and releasing, the capture cover is adapted to the conical boss of the towing body, and the opening and notch of the capture cover are used to cooperate with the radial outer convex ribs of the towing body to limit, so as to prevent the towing body from shaking when folding and releasing. When folding and releasing at a speed, the towing body will not collide with the hull of the ship or the portal frame. Therefore, the ship using the portal frame device can fold and release the towing body at a speed (1kn-3kn). Moreover, due to the restriction of the capture cover, the towing body will not shake and cause collision. When retracting and releasing, there is no need to manually restrain the swing of the towing body at the cable end, thereby greatly simplifying the retracting and releasing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of a gantry device for retracting and releasing a towing body according to the present invention;

[0011] Figure 2 This is a diagram of the mast device for retracting and releasing the trailer of the present invention in the state of use after being retracted;

[0012] Figure 3 This is a diagram of the use state of the gantry device for retracting and releasing the trailer of the present invention after being lowered;

[0013] Figure 4It is a docking schematic diagram of the capture cover and the tow body in the gantry device for towing body retraction and deployment of the present invention. Detailed implementation mode

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] As Figures 1 to 4 shown, the gantry device for towing body retraction and deployment of the present invention includes a gantry 16. Support seats 1 for connecting with the ship deck are hinged at the outer ends of the two vertical poles of the gantry 16. There is a first driving cylinder 5 between the gantry 16 and the support seat 1 to drive the gantry 16 to rotate in the vertical plane along the hinge point. Its feature is that there is a connecting frame on the cross bar of the gantry 16, and a conical capture cover 13 is at the bottom of the connecting frame. The end with a smaller diameter of the capture cover 13 faces upward. There is a notch 20 at the bottom of the capture cover 13, and an opening 12 is on the side wall of the capture cover 13. The opening 12 and the notch 20 are at both ends of a radial line of the capture cover 13.

[0016] There are movable arms 4 and fixed arms 3 on the support seats 1. One end of the movable arm 4 is hinged at the hinge point between the corresponding support seat 1 and the vertical pole of the gantry 16. The middle of the movable arm 4 and the vertical pole of the corresponding gantry 16 are hinged with the first driving cylinder 5. A second driving cylinder 2 is hinged between the end of the movable arm 4 far from the support seat 1 and the support seat 1. One end of the fixed arm 3 is fixed on the support seat 1 inside the gantry 16. Short connecting rods 15 are hinged on the cross bar of the corresponding gantry 16 of the fixed arm 3. A long connecting rod 6 is hinged between the end of the fixed arm 3 far from the support seat 1 and the corresponding short connecting rod 15. An installation plate 8 is fixed between the two short connecting rods 15, and the connecting frame is fixed on the installation plate 8.

[0017] The connecting frame includes two upper connecting plates 17 arranged vertically, which are arranged parallel to each other. The upper connecting plates 17 are fixed on the mounting plate 8. The two lower ends of the two upper connecting plates 17 are hinged with swing rods 9. There is a horizontally arranged upper support plate 10 between the two upper connecting plates 17. The lower ends of the swing rods 9 are hinged on the upper support plate 10. The swing rods 9 are arranged parallel to each other. The upper pulley 7 is connected to the section of the mounting plate 8 between the two upper connecting plates 17. The upper pulley 7 is arranged vertically and parallel to the upper connecting plates 17. The lower connecting plates 14 arranged parallel to each other are fixed on both sides of the lower plate surface of the upper support plate 10. The lower connecting plates 14 are parallel to the upper connecting plates 17. There is a lower pulley 11 between the two lower connecting plates 14. The lower pulley 11 is in the same vertical plane as the upper pulley 7, and the upper pulley 7 and the lower pulley 11 are arranged front and back in a staggered manner. There is a lower support plate 18 between the lower sides of the two lower connecting plates 14, and the upper end of the capture cover 13 is fixed on the lower plate surface of the lower support plate 18. The upper support plate 10 and the lower support plate 18 corresponding to the capture cover 13 are provided with a clearance hole 21 for facilitating the passage of the cable, and the upper pulley 7 and the lower pulley 11 are respectively located on both sides of the clearance hole 21.

[0018] When in use, the support base 1 is fixed on the stern deck 23 outside the towing winch 22 of the ship, and the cable 24 of the towing winch 22 is passed through the upper pulley 7 and the lower pulley 11 and then connected to the towing body 19 of the ship. When in use, a conical boss 25 is arranged on the upper surface of the towing body 19, and radial outer ribs 27 are symmetrically arranged on the outer surface of the conical boss 25, and a round rod 26 is arranged on the top of one of the radial outer ribs 27. When retracting and releasing, the capture cover 13 is adapted to the conical boss 25 of the towing body 19, and the opening 12 and the notch 20 of the capture cover 13 are used to cooperate with the radial outer rib 27 of the towing body 19 to limit, so as to prevent the towing body from shaking when retracting and releasing. When retracting and releasing at speed, the towing body 19 will not collide with the hull and the gantry 16 of the ship, so that the ship using the gantry device can retract and release the towing body 19 at a speed of 1kn-3kn. Moreover, due to the restriction of the capture cover 13, the towing body 19 will not shake and cause collision. When retracting and releasing, there is no need to manually restrict the swing of the towing body at the cable end, thereby greatly simplifying the retracting and releasing process.

[0019] like Figure 4 As shown, in this embodiment, the angle of the notch 20 is 60°, so that when the towing body 19 is docked with the capture cover 13, the notch 20 can be used to adjust the posture of the towing body 19.

[0020] In actual use, the amplitude adjustment angle of the gantry device can be set according to the freeboard height of the mother ship to compensate for different waterline heights and realize underwater docking and recovery of the towing body.

Claims

1. Gantry device for towing body retraction and deployment, comprising a gantry (16), on the outer ends of the two vertical rods of the gantry (16), there are support seats (1) hinged for connecting with the ship deck, and there is a first driving cylinder (5) between the gantry (16) and the support seat (1) to drive the gantry (16) to rotate in the vertical plane along the hinge point; characterized in that The portal frame (16) has a connecting frame on its cross bar, a conical capture cover (13) is provided at the bottom of the connecting frame, the end of the capture cover (13) with a smaller diameter faces upward, a notch (20) is provided at the bottom of the capture cover (13), an opening (12) is provided on the side wall of the capture cover (13), and the opening (12) and the notch (20) are located at both ends of a radial line of the capture cover (13); the support seat (1) has a movable arm (4) and a fixed arm (3); one end of the movable arm (4) is hinged at a hinged position between the corresponding support seat (1) and the vertical pole of the portal frame (16), and the first driving cylinder is hinged between the middle part of the movable arm (4) and the vertical pole of the corresponding portal frame (16) (5), one end of the movable arm (4) away from the support seat (1) is hinged with a second driving cylinder (2) between the support seat (1); one end of the fixed arm (3) is fixed to the support seat (1) inside the portal frame (16), a short connecting rod (15) is hinged on the cross bar of the portal frame (16) corresponding to the fixed arm (3), and a long connecting rod (6) is hinged between one end of the fixed arm (3) away from the support seat (1) and the corresponding short connecting rod (15); a mounting plate (8) is fixed between the two short connecting rods (15), and the connecting frame is fixed on the mounting plate (8); the connecting frame includes two upper connecting plates (17) arranged vertically, and the two upper connecting plates (17) The upper connecting plates (17) are arranged in parallel and side by side, the upper connecting plates (17) are fixed on the mounting plates (8), the lower ends of the two upper connecting plates (17) are hinged with swing rods (9), and a horizontally arranged upper support plate (10) is arranged between the lower parts of the two upper connecting plates (17). The lower ends of the swing rods (9) are hinged on the upper support plate (10), and the swing rods (9) are arranged in parallel and side by side; the section of the mounting plate (8) between the two upper connecting plates (17) is connected with an upper pulley (7), and the upper pulley (7) is arranged vertically and parallel to the upper connecting plates (17); the lower connecting plates (14) arranged in parallel and side by side are respectively fixed on both sides of the lower plate surface of the upper support plate (10) ), the lower connecting plate (14) is parallel to the upper connecting plate (17), a lower pulley (11) is provided between the two lower connecting plates (14), the lower pulley (11) and the upper pulley (7) are in the same vertical plane, and the upper pulley (7) and the lower pulley (11) are arranged in a front-to-back staggered manner; a lower support plate (18) is provided between the lower sides of the two lower connecting plates (14), the upper end of the capture cover (13) is fixed to the lower plate surface of the lower support plate (18), and the upper support plate (10) and the lower support plate (18) corresponding to the capture cover (13) are provided with a clearance hole (21) for facilitating the passage of the cable, and the upper pulley (7) and the lower pulley (11) are respectively located on both sides of the clearance hole (21).

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