Stern door electric winch

Abstract

The utility model belongs to the field of electric winches, and particularly relates to a stern door electric winch which comprises a ship body and an adjusting adaptation device. A first-order stern door is installed on the adjusting and adapting device, a connecting sleeve rod is fixedly installed on one side of the first-order stern door, a movable rod is hinged to the other side of the connecting sleeve rod, a second-order stern door is fixedly connected to the other side of the movable rod, and a ramp is fixedly installed on the other side of the second-order stern door; people can set threshold values for the position sensors on the two sides, and when the angle between the second-order stern door and the first-order stern door deviates due to passing of the garage, the position sensors send data to the second electric winches to adaptively unwind or wind a second steel wire rope. A second electric winch is used for controlling a second steel wire rope so as to achieve angle adjustment between the second-order stern door and the first-order stern door, the function of self-adaptive stern door angle adjustment is achieved, the problem that the boarding difficulty is increased due to the fact that a vehicle is affected by shaking in the passing process is solved, and the vehicle passing adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric winches, in particular to a stern door electric winch. Background Art

[0002] The stern door is located on the outer plate of the stern, and is a watertight door used for loading and unloading cargo and for personnel to enter and exit. It is commonly seen on vehicle ferries and ro-ro ships. The stern ramp on vehicle ferries and ro-ro ships is generally used as a stern door. Ro-ro ships with inclined ramps, rotating ramps, semi-rotating ramps and longer one-piece stern ramps are specially equipped with a steel stern door that opens upwards. There are two types of stern doors: folding type and flap type. There is no threshold at the bottom of the door, which is convenient for vehicles and wheeled machinery to enter and exit.

[0003] Chinese patent number CN201921568518.X discloses an electric winch, including: a power control system; a first output shaft, the first output shaft is rotatably arranged, the power control system controls the rotation of the first output shaft, or controls the rotation of the first output shaft through a first transmission mechanism; a second output shaft, the second output shaft is rotatably arranged.

[0004] From the above, it can be seen that the torque on the first output shaft and the second output shaft is sensed by the torque sensing device, so that the tension of the wire rope on the drum can be monitored through the mechanical transmission setting to prevent the wire rope from breaking due to excessive tension. However, this case still has the following shortcomings: At present, according to the existing technology, when a vehicle passes through the stern gate, the stern gate will have a certain angle change according to the tide, draft changes and the vehicle's own weight. The vehicle is shaken during the passage, which makes it more difficult to board the ship. When the vehicle is heavy and causes the stern gate to be overloaded, personnel must manually adjust the angle in advance, and there is a preset angle, which results in directional adjustment only at a few fixed angles.

[0005] Therefore, a stern door electric winch is proposed in view of the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, the vehicle is shaken during passage, which increases the difficulty of boarding the ship, and the high weight of the vehicle causes the personnel to manually adjust the angle in advance when the stern door is overloaded. The utility model proposes a stern door electric winch.

[0007] The technical solution adopted by the utility model to solve its technical problem is: the stern gate electric winch described in the utility model includes a hull and an adjustment adapter device; the adjustment adapter device is equipped with a first-step stern gate, a connecting sleeve rod is fixedly installed on one side of the first-step stern gate, a movable rod is hinged on the other side of the connecting sleeve rod, a second-step stern gate is fixedly connected to the other side of the movable rod, a ramp is fixedly installed on the other side of the second-step stern gate, a weight sensor is fixedly installed on the bottom of the second-step stern gate, and the weight sensor is electrically connected to two second electric winches.

[0008] Preferably, two first-order guardrails are fixedly installed on the top of the first-order stern door, and two second-order guardrails are fixedly installed on the top of the second-order stern door.

[0009] Preferably, two buttress columns are fixedly installed on the top of the first-step stern door, and second electric winches are respectively fixedly installed on the tops of the two buttress columns. Second steel wire ropes are respectively wound around the two second electric winches, and one end of the two second steel wire ropes is fixedly connected to a ramp.

[0010] Preferably, a position sensor is fixedly mounted on one side of the two buttress columns, and one side of the two position sensors is electrically connected to a second electric winch.

[0011] Preferably, hooks are fixedly installed on the tops of the two buttress columns, and first steel wire ropes are fixedly installed on one side of the two hooks, and the two first steel wire ropes are respectively wound around the first electric winch.

[0012] Preferably, support seats are fixedly installed at the bottom of the two first electric winches respectively, the bottoms of the two support seats are fixedly connected to the hull, and a one-step stern door is movably installed at one side of the hull.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model adjusts the structural design of the adapter device, and personnel can set thresholds for the position sensors on both sides. When the garage passage causes the angle between the second-order stern door and the first-order stern door to deviate, the position sensor sends data to the second electric winch to adaptively unwind or reel the second steel wire rope, and the second electric winch controls the second steel wire rope to adjust the angle between the second-order stern door and the first-order stern door, thereby realizing the function of adaptive stern door angle adjustment, solving the problem of increased difficulty in boarding due to shaking of vehicles during passage, and improving the adaptability of vehicle passage;

[0015] 2. The utility model adjusts the structural design of the adapter device. When the vehicle enters the top of the second-step stern gate through the ramp, the weight sensor measures the weight of the vehicle. When the weight is too high, the weight sensor drives the second electric winch to reel in the second steel wire rope to maintain a constant tension so that the dock will not be overloaded when an overweight vehicle passes through. The function of matching the stern gate angle according to the load is realized, which solves the problem that the personnel must manually adjust the angle in advance when the stern gate is overloaded due to the high weight of the vehicle, and improves the limitations of vehicle passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is an exploded schematic diagram of the structure of the adjustment and adaptation device of the utility model;

[0020] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure in the middle;

[0021] Figure 5 It is a schematic diagram of the hull structure of the utility model.

[0022] In the figure: 1, hull; 2, adjustment adapter; 11, support seat; 12, first electric winch; 13, first wire rope; 21, first-order stern door; 22, first-order guardrail; 23, buttress column; 24, hook; 25, second electric winch; 26, connecting sleeve rod; 27, movable rod; 28, second-order stern door; 29, second-order guardrail; 31, weight sensor; 32, ramp; 33, second wire rope; 34, position sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 As shown, the stern gate electric winch includes a hull 1 and an adjustment adapter device 2; the adjustment adapter device 2 is equipped with a first-stage stern gate 21, a connecting sleeve rod 26 is fixedly installed on one side of the first-stage stern gate 21, a movable rod 27 is hinged on the other side of the connecting sleeve rod 26, a second-stage stern gate 28 is fixedly connected to the other side of the movable rod 27, a ramp 32 is fixedly installed on the other side of the second-stage stern gate 28, a weight sensor 31 is fixedly installed at the bottom of the second-stage stern gate 28, and the weight sensor 31 is electrically connected to two second electric winches 25;

[0025] During operation, the first-step stern door 21 is connected to the connecting sleeve rod 26 by the first-step stern door 21, and the movable rod 27 is used to cooperate to achieve the docking of the first-step stern door 21 and the second-step stern door 28, so that the second-step stern door 28 moves in a circle with the connection of the first-step stern door 21 as the axis. When the vehicle enters the top of the second-step stern door 28, the weight sensor 31 monitors the weight of the vehicle to prevent the first-step stern door 21 and the second-step stern door 28 from being suddenly overloaded, resulting in a rapid change in the angle between the first-step stern door 21 and the second-step stern door 28, thereby causing a safety hazard.

[0026] Furthermore, two first-order guardrails 22 are fixedly installed on the top of the first-order stern door 21, and two second-order guardrails 29 are fixedly installed on the top of the second-order stern door 28;

[0027] During operation, when a vehicle passes to the top of the first-order stern door 21 and the second-order stern door 28, the first-order stern door 21 and the second-order stern door 28 will shake to a certain extent due to the influence of waves, causing the driver to make a wrong judgment on the forward direction. The safety factor of the passing vehicles is guaranteed by installing the first-order guardrail 22 and the second-order guardrail 29.

[0028] Furthermore, two buttress columns 23 are fixedly installed on the top of the first-stage stern gate 21, and second electric winches 25 are fixedly installed on the tops of the two buttress columns 23, and second steel wire ropes 33 are respectively wound around the two second electric winches 25, and one end of the two second steel wire ropes 33 is fixedly connected to a ramp 32;

[0029] During operation, the second steel wire rope 33 wound around is wound or unwound by driving the second electric winch 25. During operation, the second-step stern door 28 is linked by the ramp 32 to perform circular motion with the connection point of the first-step stern door 21 as the axis, which is beneficial to the adjustment of the angle between the second-step stern door 28 and the first-step stern door 21.

[0030] Furthermore, a position sensor 34 is fixedly mounted on one side of the two buttress columns 23, and one side of the two position sensors 34 is electrically connected to a second electric winch 25;

[0031] During operation, the angle between the second-step stern door 28 and the first-step stern door 21 is monitored by the position sensor 34, and the second electric winch 25 is controlled when a threshold is set for the position sensor 34, so that the second electric winch 25 controls the tension of the second steel wire rope 33, which is beneficial to adjust the angle between the second-step stern door 28 and the first-step stern door 21, so that the vehicle can pass stably.

[0032] Furthermore, hooks 24 are fixedly installed on the tops of the two buttress columns 23, and first steel wire ropes 13 are fixedly installed on one side of the two hooks 24. The two first steel wire ropes 13 are respectively wound around the first electric winch 12;

[0033] During operation, the first electric winch 12 is driven to generate a constant tension on the first steel wire rope 13, thereby ensuring that the first steel wire rope 13 is always in a tensioned state when the ramp 32 is on the dock.

[0034] Furthermore, the bottoms of the two first electric winches 12 are respectively fixedly mounted with support seats 11, the bottoms of the two support seats 11 are fixedly connected with the hull 1, and a one-step stern door 21 is movably mounted on one side of the hull 1;

[0035] During operation, the first electric winch 12 is used to unwind or reel the first steel wire rope 13, and the first-step stern door 21 moves in a circle with the connection of the hull 1 as the axis to ensure the docking between the ramp 32 and the dock.

[0036] Working principle: The first electric winch 12 on both sides is driven to unwind the first steel wire rope 13. As the length of the first steel wire rope 13 is increased, one side of the first-stage stern gate 21 moves in a circle with the connection as the axis until the ramp 32 is docked with the dock. When the vehicle enters the top of the second-stage stern gate 28 through the ramp 32, the weight sensor 31 measures the weight of the vehicle. When the weight is too high, the second electric winch 25 is driven by the weight sensor 31 to reel in the second steel wire rope 33 to maintain a constant tension so that The wharf will not be overloaded when an overweight vehicle passes through. At the same time, when the garage is passing, personnel can set thresholds for the position sensors 34 on both sides. When the garage passes and causes the angle between the second-order stern door 28 and the first-order stern door 21 to be too large, the position sensor 34 sends data to the second electric winch 25 to adaptively unwind or reel in the second steel wire rope 33. In this way, the docking angle between the second-order stern door 28 and the first-order stern door 21 can be freely changed. Pure electric cylinders are used for locking and fixing, and the vehicle is driven onto the hull 1 according to the best passage conditions.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. Stern door electric winch, Features: The invention comprises a hull (1) and an adjustment and adaptation device (2); the adjustment and adaptation device (2) is provided with a first-step stern door (21); a connecting sleeve rod (26) is fixedly installed on one side of the first-step stern door (21); a movable rod (27) is hingedly connected to the other side of the connecting sleeve rod (26); a second-step stern door (28) is fixedly connected to the other side of the movable rod (27); a ramp (32) is fixedly installed on the other side of the second-step stern door (28); a weight sensor (31) is fixedly installed on the bottom of the second-step stern door (28); and the weight sensor (31) is electrically connected to two second electric winches (25).

2. The stern door electric winch according to claim 1, Features: Two first-order guardrails (22) are fixedly installed on the top of the first-order stern door (21), and two second-order guardrails (29) are fixedly installed on the top of the second-order stern door (28).

3. The stern door electric winch according to claim 2, Features: Two buttress columns (23) are fixedly mounted on the top of the first-step stern door (21), and second electric winches (25) are respectively fixedly mounted on the tops of the two buttress columns (23). Second steel wire ropes (33) are respectively wound around the two second electric winches (25), and one end of the two second steel wire ropes (33) is fixedly connected to a ramp (32).

4. The stern door electric winch according to claim 3, Features: Position sensors (34) are fixedly mounted on one side of the two buttress columns (23), and one side of the two position sensors (34) is electrically connected to a second electric winch (25).

5. The stern door electric winch according to claim 4, Features: A hook (24) is fixedly mounted on the top of each of the two buttress columns (23), a first steel wire rope (13) is fixedly mounted on one side of each of the two hooks (24), and the two first steel wire ropes (13) are respectively wound around the first electric winch (12).

6. The stern door electric winch according to claim 5, Features: A support base (11) is fixedly mounted on the bottom of each of the two first electric winches (12), the bottoms of the two support bases (11) are fixedly connected to a hull (1), and a first-step stern door (21) is movably mounted on one side of the hull (1).

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