A full-rotation electric tugboat cable presser

Abstract

This invention belongs to the field of marine equipment technology, specifically a fully rotating electric tugboat mooring device. The invention comprises: a mooring base; a pair of mooring side plates symmetrically and fixedly connected to the mooring base, with a first wear-resistant block fixedly connected to each side plate; a pair of mooring bottom plates symmetrically and fixedly connected to the mooring base, with a second wear-resistant block fixedly connected to each bottom plate; a pair of mooring top plates with a third wear-resistant block fixedly connected to each surface; and a rotating mechanism fixedly mounted on the mooring base. The rotating mechanism includes a circular connecting seat, a rotating frame rotatably connected to the connecting seat, and a pair of sliders slidably connected to the rotating frame, with guide wheels fixedly connected to each slider. By installing a rotating mechanism at the center of the mooring base, this invention can automatically wind up the towline, thereby tightening the towline and preventing it from becoming too slack.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, and in particular to a fully rotating electric tugboat cable presser. Background Technology

[0002] There are two main methods of towing vessels: jacking and lashing. A towing winch is an essential piece of equipment for ocean-going tugboats. It was developed with the advent of marine rescue tugboats and features a drum with high pulling force and large rope capacity, matching the towing capacity of the tugboat's bollards. Although marine towing has expanded from coastal to long-distance ocean towing, and the tasks undertaken by tugboats have gradually increased, to prevent large lateral swings of the towing cable, cable tensioners are usually installed on the ship's deck to limit its movement.

[0003] The core structure of the existing cable clamp includes a cable clamp base, cable clamp side plates (including a left side plate and a right side plate), and a cable clamp top plate. The cable clamp side plates, cable clamp top plate, and cable clamp base form a semi-enclosed structure to limit the towline and prevent the towline from bouncing upward and breaking free of the constraint under tension. During the tugboat's operation, due to wind and waves or when the tugboat and the towed vessel are moving at different speeds, the towline between the bollard and the towed vessel is prone to being in a slack state. The existing cable clamp only has a limiting function and cannot tighten the towline between the bollard and the towed vessel. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fully rotating electric tugboat cable tensioner, which automatically tightens the towline by installing a rotating mechanism on the cable tensioner base, aiming to solve the problems in the background technology.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The present invention proposes a fully rotating electric tugboat cable clamp, comprising: a cable clamp base; a pair of cable clamp side plates, symmetrically and fixedly connected to the cable clamp base, wherein a first wear-resistant block is fixedly connected to the cable clamp side plates; a pair of cable clamp bottom plates, symmetrically and fixedly connected to the cable clamp base, wherein a second wear-resistant block is fixedly connected to the cable clamp bottom plate; a pair of cable clamp top plates, wherein a third wear-resistant block is fixedly connected to the surface of the top plate; and a rotating mechanism fixedly installed on the cable clamp base; the rotating mechanism includes a circular connecting seat, a rotating frame rotatably connected to the connecting seat, and a pair of sliders slidably connected to the rotating frame, wherein a guide wheel is fixedly connected to the slider; the rotating frame tightens or loosens the cable when rotating.

[0006] As a preferred embodiment of the present invention, a pair of eccentrically arranged arc-shaped tracks are fixedly connected to the connecting seat, and a sliding shaft that is slidably connected to the arc-shaped tracks is connected to the slider. When the rotating frame rotates, it drives the two sliders to move in different directions.

[0007] As a preferred embodiment of the present invention, the rotary frame has a rectangular structure and is provided with sliding holes that are slidably connected to the slider.

[0008] As a preferred embodiment of the present invention, a pair of tension supports are fixedly connected to the connecting seat, and a tension spring is fixedly connected between the tension supports and the rotating frame.

[0009] As a preferred embodiment of the present invention, a rotating shaft is fixedly connected to the rotating frame, the rotating shaft is rotatably connected to the connecting seat, and a motor frame is fixedly connected below the connecting seat. A power motor is installed on the motor frame to assist the rotation of the rotating frame; and a control module is installed on the motor frame.

[0010] As a preferred embodiment of the present invention, a driven gear is fixedly mounted on the surface of the rotating shaft, a driving gear that meshes with the driven gear is fixedly connected to the rotating shaft of the power motor, and a torque sensor is installed below the connecting seat to detect the torque change and rotation direction of the rotating shaft.

[0011] As a preferred embodiment of the present invention, one end of the cable pressing top plate is rotatably connected to a cable pressing side plate, the other end of the cable pressing top plate is fixedly connected to a threaded seat, a connecting plate is fixedly connected to another cable pressing side plate, a shaft seat is fixedly connected to the connecting plate, and a threaded rod that is threadedly connected to the threaded seat is rotatably connected to the shaft seat.

[0012] As a preferred embodiment of the present invention, a bracket is fixedly connected to the slider, a limit block is fixedly connected to the bracket, and a limit groove is provided on the limit block.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. The present invention has a rotating mechanism installed at the center of the cable clamp. When the tow cable is in a slack state, the rotating frame on the rotating mechanism rotates automatically to wind up the tow cable, thereby tightening the tow cable and preventing it from being too slack. When the tow cable is in a taut state, the rotating frame automatically rotates back to its original position to release the tow cable so that it can be tightened next time.

[0015] 2. The rotary mechanism of the present invention is provided with a rotary frame, on which a pair of sliders are slidably connected, and a pair of arc-shaped tracks are installed on the rotary frame. When the tow cable is slack, the rotary frame rotates, the sliders slide along the arc-shaped tracks, the two sliders move away from each other, and the distance between them increases, thereby increasing the winding length of the tow cable; when the tow cable is taut, the rotary frame rotates back to its original position, and the two sliders move to the center position of the rotary frame to limit the tow cable.

[0016] 3. The present invention is equipped with a torque sensor, a power motor, a control module, etc. The torque sensor detects the torque change and rotation direction of the slewing frame and sends the signal to the control module. The control module controls the power motor to start, assisting the slewing frame to rotate, so that the slewing frame can quickly wind up the tow cable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a fully rotating electric tugboat cable press proposed in this invention.

[0018] Figure 2 This is a top view schematic diagram of a fully rotating electric tugboat cable press proposed in this invention.

[0019] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the rotary mechanism proposed in this invention.

[0021] Figure 5 This is a top view schematic diagram of the rotary mechanism proposed in this invention.

[0022] Figure 6 This is a schematic diagram of the slider proposed in this invention.

[0023] The corresponding names of the attached figures are as follows:

[0024] 100. Cable clamp;

[0025] 200. Rotary mechanism; 201. Connecting seat; 202. Rotary frame; 203. Slider; 204. Guide wheel; 205. Arc track; 206. Tensioning support; 207. Tension spring; 208. Sliding hole; 209. Sliding shaft; 210. Motor frame; 211. Power motor; 212. Rotating shaft; 213. Torque sensor; 214. Driving gear; 215. Driven gear; 216. Control module; 217. Bracket; 218. Limit block;

[0026] 300. Cable clamping side plate; 301. First wear-resistant block; 302. Threaded rod; 303. Shaft seat; 304. Connecting plate;

[0027] 400. Cable clamping base plate; 401. Second wear-resistant block;

[0028] 500, Cable clamping top plate; 501, Third wear-resistant block; 502, Threaded seat. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Example 1: This example discloses a fully rotating electric tugboat line presser, such as... Figures 1-6 As shown, the system includes: a cable clamping seat 100, which is fixedly installed on the deck of the tugboat; cable clamping side plates 300, which are provided in pairs and symmetrically fixedly connected to the cable clamping seat 100, and two first wear-resistant blocks 301 are fixedly connected to each cable clamping side plate 300; a cable clamping bottom plate 400, which is provided in pairs and symmetrically fixedly connected to the cable clamping seat 100, and a second wear-resistant block 401 is fixedly connected to the upper surface of the cable clamping bottom plate 400; and a cable clamping top plate 500, which is provided in pairs and a third wear-resistant block 501 is fixedly connected to the surface of the top plate 500, which is connected between the two cable clamping side plates 300, wherein a channel is formed between the cable clamping side plates 300, the cable clamping bottom plate 400, and the cable clamping top plate 500, and the tow cable passes through the channel; this embodiment also includes a slewing mechanism 200, which is fixedly installed at the center position of the cable clamping seat 100, and the slewing mechanism 200 is used to tighten the tow cable to prevent the tow cable from being too loose.

[0031] Preferred, such as Figure 3 As shown, one end of the cable clamping top plate 500 is rotatably connected to a cable clamping side plate 300, and the other end of the cable clamping top plate 500 is fixedly connected to a threaded seat 502. A connecting plate 304 is fixedly connected to another cable clamping side plate 300, and a shaft seat 303 is fixedly connected to the connecting plate 304. A threaded rod 302, which is threadedly connected to the threaded seat 502, is rotatably connected to the shaft seat 303. When installing the tow cable, the cable clamping top plate 500 is rotated upward to open the channel. After the tow cable is installed, the cable clamping top plate 500 is rotated downward to close the channel. Then, by rotating the threaded rod 302, one end of which is connected to the threaded seat 502, the cable clamping top plate 500 is locked and fixed.

[0032] like Figures 4-6As shown, the rotary mechanism 200 includes a circular connecting seat 201, a rotary frame 202 rotatably connected to the connecting seat 201, and a pair of sliders 203 slidably connected to the rotary frame 202. The connecting seat 201 is fixedly connected to the cable pressing seat 100 by bolts. The rotary frame 202 has a rectangular structure and a pair of sliding holes 208 symmetrically provided on the rotary frame 202 that are slidably connected to the sliders 203. A guide wheel 204 is fixedly connected to the slider 203, and the towing cable passes between the two guide wheels 204. When the slewing frame 202 rotates, it tightens or loosens the cable; wherein, a pair of arc-shaped rails 205 eccentrically positioned on the connecting seat 201 are fixedly connected to the connecting seat 201, the arc-shaped rails 205 are provided with sliding grooves, the slider 203 is connected to the sliding shaft 209 which is slidably connected to the arc-shaped rails 205, a pair of tension supports 206 are fixedly connected to the connecting seat 201, and a tension spring 207 is fixedly connected between the tension supports 206 and the slewing frame 202, the tension spring 207 applying tension to the slewing frame 202; in specific implementation: as follows: Figure 5 As shown, when the tow cable is taut, under the tension of the tow cable, the two sliders 203 slide to the center of the rotating frame 202, and the rotating frame 202 is in a state that is almost parallel to the tow cable. The tow cable passes between the two guide wheels 204, and the guide wheels 204 play the role of limiting the two sides of the tow cable. When the tow cable is slack, the rotating frame 202 rotates counterclockwise under the tension of the two tension springs 207. The distance between the arc track 205 and the center of the connecting seat 201 gradually increases along the direction of rotation. During the rotation, the two sliders 203 slide towards the two ends of the rotating frame 202 respectively, and the distance between the two sliders 203 gradually increases. As the rotating frame 202 rotates, the length of the tow cable winding increases rapidly, and the tow cable is tightened quickly to prevent the tow cable from being too slack.

[0033] Preferably, a bracket 217 is fixedly connected to the slider 203, and a limiting block 218 is fixedly connected to the bracket 217. The limiting block 218 is provided with a limiting groove, which is U-shaped. The limiting block 218 increases the distance between the two winding points of the tow cable and increases the winding length of the tow cable.

[0034] Example 2: Based on the structure of Example 1 above, the difference is that, in order to improve the rotational flexibility of the slewing frame 202 and reduce its rotational resistance, a rotating shaft 212 is fixedly connected to the slewing frame 202. The rotating shaft 212 is rotatably connected to the connecting seat 201, and a motor frame 210 is fixedly connected below the connecting seat 201. A power motor 211 is mounted on the motor frame 210 to assist the rotation of the slewing frame 202. A control module 216 is mounted on the motor frame 210. A driven gear 215 is fixedly mounted on the surface of the rotating shaft 212, and a driving gear 214 that meshes with the driven gear 215 is fixedly connected to the shaft of the power motor 211. A torque sensor 2 is mounted below the connecting seat 201. 13 is used to detect the torque change and rotation direction of the rotating shaft 212. When the slewing frame 202 rotates, the torque change and rotation direction of the rotating shaft 212 are detected by the torque sensor 213, and the signal is sent to the control module 216. The control module 216 controls the start of the power motor 211. The power motor 211 drives the drive gear 214 to rotate. The drive gear 214 drives the rotating shaft 212 to rotate through the driven gear 215, which assists the slewing frame 202 to rotate in the same direction, reduces the resistance to the rotation of the slewing frame 202, improves the flexibility of the slewing frame rotation, and thus quickly tightens the tow cable. Similarly, when the tow cable is tightened, the power motor 211 also assists the slewing frame 202 to quickly rotate in the opposite direction to its original position.

[0035] Compared to existing cable clamps, this embodiment has a rotating mechanism 200 installed on the cable clamp base 100. The rotating mechanism 200 can automatically tighten the tow cable, avoiding the problem of the tow cable being too loose, increasing the functionality of the cable clamp and making it practical.

[0036] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully rotating electric tugboat mooring device, characterized in that, include: Cable clamp (100); A pair of cable clamping side plates (300) are provided and symmetrically fixedly connected to the cable clamping base (100), and a first wear-resistant block (301) is fixedly connected to the cable clamping side plates (300). A cable pressing base plate (400) is provided with a pair of symmetrical fixed connections to the cable pressing seat (100), and a second wear-resistant block (401) is fixedly connected to the cable pressing base plate (400). The cable pressing top plate (500) is provided with a pair of third wear-resistant blocks (501) fixedly connected to its surface; The slewing mechanism (200) is fixedly installed on the cable clamping base (100); The rotary mechanism (200) includes a circular connecting seat (201), a rotary frame (202) rotatably connected to the connecting seat (201), and a pair of sliders (203) slidably connected to the rotary frame (202). A guide wheel (204) is fixedly connected to the slider (203). When the rotary frame (202) rotates, it tightens or loosens the cable. A pair of eccentrically arranged arc-shaped tracks (205) are fixedly connected to the connecting seat (201), and a sliding shaft (209) that is slidably connected to the arc-shaped tracks (205) is connected to the slider (203). When the rotating frame (202) rotates, it drives the two sliders (203) to move in different directions. The rotating frame (202) has a rectangular structure and is provided with a sliding hole (208) that is slidably connected to the slider (203). A pair of tension supports (206) are fixedly connected to the connecting seat (201), and a tension spring (207) is fixedly connected between the tension supports (206) and the rotating frame (202). A rotating shaft (212) is fixedly connected to the rotating frame (202), and the rotating shaft (212) is rotatably connected to the connecting seat (201). A motor frame (210) is fixedly connected below the connecting seat (201), and a power motor (211) is installed on the motor frame (210) to assist the rotating frame (202) in rotating. A control module (216) is installed on the motor frame (210).

2. The fully rotating electric tugboat cable press according to claim 1, characterized in that, A driven gear (215) is fixedly mounted on the surface of the rotating shaft (212). A driving gear (214) that meshes with the driven gear (215) is fixedly connected to the shaft of the power motor (211). A torque sensor (213) is installed below the connecting seat (201) to detect the torque change and rotation direction of the rotating shaft (212).

3. The fully rotating electric tugboat cable press according to claim 2, characterized in that, One end of the cable pressing top plate (500) is rotatably connected to a cable pressing side plate (300), and the other end of the cable pressing top plate (500) is fixedly connected to a threaded seat (502). A connecting plate (304) is fixedly connected to another cable pressing side plate (300), and a shaft seat (303) is fixedly connected to the connecting plate (304). A threaded rod (302) that is threadedly connected to the threaded seat (502) is rotatably connected to the shaft seat (303).

4. A fully rotating electric tugboat mooring device according to claim 3, characterized in that, A bracket (217) is fixedly connected to the slider (203), and a limit block (218) is fixedly connected to the bracket (217). The limit block (218) is provided with a limit groove.

Images