A gravity davit wiring system

Abstract

The application discloses a gravity type boat-hanging-frame wiring system, which comprises a hanging rope, a guide rope assembly, a floating trolley assembly and a rope locking mechanism. The guide rope assembly comprises a double-wheel guide rope assembly and a single-wheel guide rope assembly. The guide rope wheel of the double-wheel guide rope assembly can rotate circumferentially and axially slide relative to the wheel shaft, and the axial sliding of the guide rope wheel has self-adaptive resistance. In the process of lifting and carrying the rescue boat in the state of collecting and releasing the rescue boat, the guide rope wheel is pulled to axially slide slowly under the self-adaptive resistance when the hanging rope is inclined, so that the guide rope wheel keeps following the guide rope state of the hanging rope. The rope locking mechanism has a pair of rope clamping arms corresponding to the hanging rope. The rope clamping arms can gather and clamp two single ropes, so that the movable connection state of the hanging rope and the floating trolley assembly is converted into the fixed connection state of the hanging rope and the floating trolley assembly. The application can avoid the situation that the hanging rope is broken due to the intermittent friction and cutting of the edge of the guide rope groove caused by the inclination of the hanging rope under the swing of the rescue boat, and improve the safety of the boat-hanging operation of the gravity type boat-hanging-frame.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of gravity type davit rope arrangement, and particularly relates to a gravity type davit wiring system. BACKGROUND

[0002] In the process of hoisting lifeboats by the gravity type davit, the hoisting rope will appear to be inclined in the length direction of the lifeboat due to the swing of the lifeboat. Since the inclined direction is not in the same vertical plane as the limiting groove of the guide rope groove wheel, the taut hoisting rope will be discontinuously rubbed and cut by the edge of the guide rope groove wheel. This situation will gradually cause the hoisting rope to be damaged step by step, and affect the hoisting safety of the gravity type davit. SUMMARY

[0003] The present application provides a gravity type davit wiring system, which can follow the inclined hoisting rope to perform buffer axial sliding adjustment under the action of self-adaptive resistance through the guide rope wheel of the double-wheel guide rope assembly, so that the guide rope wheel always keeps in the guide rope state following the hoisting rope, and the safety of the davit operation is ensured.

[0004] Technical scheme: In order to achieve the above-mentioned purpose, the gravity type davit wiring system of the present application comprises a wiring system applied to the gravity type davit for collecting and releasing lifeboats, which comprises a hoisting rope, a guide rope assembly, a floating trolley assembly and a rope locking mechanism.

[0005] The guide rope assembly comprises a double-wheel guide rope assembly and a single-wheel guide rope assembly; the hoisting rope is used to pull the floating trolley assembly, and the floating trolley assembly has a double-strand rope structure, one single-strand rope passes through the double-wheel guide rope assembly and the single-wheel guide rope assembly in sequence to guide the rope to a boat launching winch, and the other single-strand rope passes through the double-wheel guide rope assembly to guide the rope to a fixed connection end; the guide rope wheel of the double-wheel guide rope assembly can rotate circumferentially and axially slide relative to the wheel shaft, and the axial sliding of the guide rope wheel has self-adaptive resistance; in the process of the hoisting state for collecting and releasing lifeboats, when the hoisting rope is inclined, the guide rope wheel is pulled to axially slide under the action of self-adaptive resistance, so that the guide rope wheel keeps in the guide rope state following the hoisting rope.

[0006] The rope locking mechanism is arranged on the shell of the floating trolley assembly, and the rope locking mechanism has a pair of rope clamping arms corresponding to the hoisting rope. The rope clamping arms can gather and clamp the two single-strand ropes, so that the movable connection state of the hoisting rope and the floating trolley assembly is converted into the fixed connection state of the hoisting rope and the floating trolley assembly.

[0007] Further, the double-wheel guide rope assembly is divided into a head double-wheel guide rope assembly and a guide double-wheel guide rope assembly. The head double-wheel guide rope assembly is arranged on the davit arm of the gravity type davit, and the guide double-wheel guide rope assembly is arranged on the seat frame of the gravity type davit.

[0008] In the head double-wheel rope guide assembly, through the pulling action of the hoisting rope in the inclined state between the head double-wheel rope guide assembly and the interval section of the head double-wheel rope guide assembly, the rope guide wheels bufferingly axially slide under the adaptive resistance, so that the rope guide wheels of the head double-wheel rope guide assembly follow the rope guide state of the hoisting rope of the interval section.

[0009] In the guide double-wheel rope guide assembly, through the pulling action of the hoisting rope in the inclined state between the head double-wheel rope guide assembly and the interval section of the head double-wheel rope guide assembly, the rope guide wheels bufferingly axially slide under the adaptive resistance, so that the rope guide wheels of the head double-wheel rope guide assembly follow the rope guide state of the hoisting rope of the interval section.

[0010] Further, the adaptive resistance is an axial elastic force provided on the wheel shaft and elastically acting on the rope guide wheel.

[0011] Further, the double-wheel rope guide assembly further comprises an axial elastic member; the wheel shaft is mounted on the corresponding wheel shaft frame, and the axial elastic member is located between the rope guide wheels and between the rope guide wheels and the wheel shaft frame, so that both axial sides of the rope guide wheels have the axial elastic force provided by the axial elastic member.

[0012] Further, the axial elastic member and the rope guide wheel are in abutting contact in the axial direction, and the axial elastic member and the rope guide wheel are in rolling contact in the radial plane.

[0013] Further, the rope locking mechanism comprises a rope locking driving part corresponding to the rope clamping arms; the rope clamping arms of the rope locking mechanism comprise an arm mounting part and an arm body part, the arm body part is mounted on the rope locking driving part through the arm mounting part; the width of the arm body part is smaller than the width of the arm mounting part, so that when the pair of rope clamping arms are driven by the rope locking driving part to displace towards the middle position and gather the two single ropes, the pair of rope clamping arms form a clamping space enclosing and limiting the two single ropes.

[0014] Further, the pair of rope clamping arms change the width of the clamping space to realize the clamping and locking action and the loosening and releasing action of the two single ropes.

[0015] Further, in the clamping and locking action state of the pair of rope clamping arms, the arm body parts of the pair of rope clamping arms gather and clamp the single ropes, and the gathering and clamping surface of the arm body part has an anti-slip pattern.

[0016] Beneficial effects: the gravity type boat lifting frame wiring system has the beneficial effects that: the guide rope wheel of the double-wheel guide rope assembly can follow the inclined lifting rope for buffering axial sliding adjustment under the self-adaptive resistance, so that the guide rope wheel keeps following the lifting rope and is always in the guide rope state, avoiding the friction and cutting damage of the lifting rope to the edge of the limiting groove of the guide rope wheel, and ensuring the safety of the boat lifting operation; and in the case that the swing range of the lifeboat increases when unhooking, the two single ropes can be gathered and clamped through the rope locking mechanism, realizing the rope locking type binding stability action of the lifting rope, and reducing the influence on the double-wheel guide rope assembly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the gravity type boat lifting frame wiring system of the present application; Figure 1 Figure 1 is a schematic diagram of the overall structure of the gravity type boat lifting frame wiring system of the present application;

[0018] Figure 1 is a schematic diagram of the overall structure of the gravity type boat lifting frame wiring system of the present application; Figure 2 Figure 2 is a schematic diagram of the structure of the double-wheel guide rope assembly;

[0019] Figure 2 is a schematic diagram of the structure of the double-wheel guide rope assembly; Figure 3 Figure 2 is a schematic diagram of the structure of the double-wheel guide rope assembly;

[0020] Figure 3 is a schematic diagram of the structure of the locking mechanism on the shell of the floating trolley assembly; Figure 4 Figure 3 is a schematic diagram of the structure of the locking mechanism on the shell of the floating trolley assembly;

[0021] Figure 5 Figure 4 is a schematic diagram of the structure of a pair of rope gathering arms in a mutual closing state;

[0022] Figure 4 is a schematic diagram of the structure of a pair of rope gathering arms in a mutual closing state; Figure 6 Figure 5 is a schematic diagram of the structure of the rope gathering arms in a state of gathering and clamping the two single ropes. DETAILED DESCRIPTION

[0023] The present application will be further described below in conjunction with the drawings.

[0024] In the process of lifting the lifeboat by the gravity type boat lifting frame, the lifting rope will be inclined in the length direction of the lifeboat due to the influence of the swing of the lifeboat, and the inclined direction is not in the same vertical plane as the limiting groove of the guide rope groove wheel, so that the taut lifting rope will be intermittently rubbed and cut by the edge of the guide rope groove wheel. This situation will gradually cause the lifting rope to be damaged, affecting the safety of the lifting of the gravity type boat lifting frame.

[0025] In order to solve the above problems, in the present application, as shown in the accompanying drawings, Figure 1 A gravity type boat lifting frame wiring system, including a wiring system applied to the gravity type boat lifting frame for collecting and releasing the lifeboat 1, the wiring system including a lifting rope 3, a guide rope assembly, a floating trolley assembly 4 and a rope locking mechanism 8. As shown in the accompanying drawings, Figure 2 ​As shown, the guide rope assembly includes a double-wheel guide rope assembly and a single-wheel guide rope assembly 7; the hoisting rope 3 is a double-strand rope structure for hoisting the floating trolley assembly 4, in which one single-strand rope is guided sequentially through the double-wheel guide rope assembly and the single-wheel guide rope assembly 7 to the lifeboat winch 2, and the other single-strand rope is guided through the double-wheel guide rope assembly to the fixed connection end 10; the guide rope wheel 51 of the double-wheel guide rope assembly can rotate circumferentially and slide axially relative to its wheel axle 52, and the axial sliding of the guide rope wheel 51 has adaptive resistance: during the hoisting process of launching and retrieving the lifeboat, when the hoisting rope 3 tilts, it pulls the guide rope wheel 51 to slide axially under the action of adaptive resistance, so that the guide rope wheel 51 keeps following the guide rope state of the hoisting rope 3. In this invention, during davit operation, the swing of the lifeboat 1 pulls the hoisting rope 3 to tilt. Under the pulling action of the tilted hoisting rope 3, the guide wheel 51 of the double-wheel guide rope assembly slides axially along with the hoisting rope 3. This ensures that the limiting groove of the guide wheel 51 is as close as possible to the same vertical plane as the corresponding single strand of rope, preventing friction and cutting between the hoisting rope 3 and the edge of the limiting groove of the guide wheel 51. However, when the guide wheel 51 slides axially along with the hoisting rope 3, this sliding obviously needs to be buffered and cannot be too fast, otherwise, the hoisting will be unstable. Therefore, in this invention, an adaptive resistance is added during the axial sliding of the guide wheel 51. Through this adaptive resistance, the guide wheel 51 can be buffered during axial sliding, rather than moving too fast, ensuring more stable following adjustment.

[0026] When the lifeboat needs to be unhooked during hoisting, the lifeboat's sway will increase due to the unhooking process. At this time, the tilt of the hoisting rope 3 will also increase, potentially exceeding the limit of the guide pulley 51 of the double-wheel guide rope assembly's axial slippage. This will affect the double-wheel guide rope assembly. Therefore, the hoisting rope 3 needs to be secured and stabilized to reduce the impact on the double-wheel guide rope assembly, as shown in the attached diagram. Figure 4 and attached Figure 6 As shown, the rope locking mechanism 8 is installed on the outer shell 41 of the floating trolley assembly 4. The rope locking mechanism 8 has a pair of rope-gathering arms 80 corresponding to the suspension rope 3. The rope-gathering arms 80 can gather and clamp the two single strands of rope, so that the movable connection state between the suspension rope 3 and the floating trolley assembly 4 is converted into the fixed connection state between the suspension rope 3 and the floating trolley assembly 4. At this time, the suspension rope 3 is fixedly connected to the outer shell 41 of the floating trolley assembly 4 through the rope locking mechanism 8. Then the connection mobility between the suspension rope 3 and the floating trolley assembly 4 will be restricted, thereby performing a rope-locking restraint and stabilizing action on the suspension rope 3 and reducing the impact on the double wheel guide rope assembly.

[0027] The dual-wheel guide rope assembly is divided into a head dual-wheel guide rope assembly 5 and a guide dual-wheel guide rope assembly 6. The head dual-wheel guide rope assembly 5 is mounted on the davit arm of the gravity-type davit, and the guide dual-wheel guide rope assembly 6 is mounted on the seat frame of the gravity-type davit. The following guide rope adjustment of the hoisting rope 3 involves two sections: between the floating trolley assembly 4 and the head dual-wheel guide rope assembly 5, and between the head dual-wheel guide rope assembly 5 and the guide dual-wheel guide rope assembly 6. Therefore, in the head dual-wheel guide rope assembly 5, through the pulling action of the hoisting rope 3 in the inclined state between the floating trolley assembly 4 and the head dual-wheel guide rope assembly 5, the guide rope wheel 51 undergoes buffered axial sliding under the action of adaptive resistance, so that the... The guide wheel 51 of the head double-wheel guide rope assembly 5 maintains the guide rope state following the section of the suspension rope 3, realizing the guide rope following adjustment between the floating trolley assembly 4 and the head double-wheel guide rope assembly 5; in the guide double-wheel guide rope assembly 6, through the pulling action of the suspension rope 3 in the inclined state between the section of the head double-wheel guide rope assembly 5 and the guide double-wheel guide rope assembly 6, the guide wheel 51 slides axially under the action of adaptive resistance, so that the guide wheel 51 of the guide double-wheel guide rope assembly 6 maintains the guide rope state following the section of the suspension rope 3, realizing the guide rope following adjustment between the head double-wheel guide rope assembly 5 and the guide double-wheel guide rope assembly 6, and the guide rope following adjustment coverage is appropriate and relatively comprehensive.

[0028] In this invention, preferably, the adaptive resistance is an axial elastic force disposed on the axle 52 and exerting an elastic effect on the guide rope wheel 51, because the elastic force has better adaptability. More specifically, as shown in the attached figure... Figure 3 As shown, the dual-wheel guide rope assembly also includes an axial elastic element 53; the wheel axle 52 is mounted on the corresponding wheel axle frame 54, and the axial elastic element 53 is located between the guide rope wheels 51 and between the guide rope wheels 51 and the wheel axle frame 54, so that both axial sides of the guide rope wheels 51 have axial elastic force provided by the axial elastic element 53, and the guide rope wheels 51 can have axial buffering during the follow-up adjustment process when the lifeboat 1 swings forward and backward in the longitudinal direction.

[0029] The axial elastic element 53 abuts against the guide rope wheel 51 in the axial direction, and the axial elastic element 53 and the guide rope wheel 51 roll in contact in the radial plane, which can reduce friction and achieve structural protection. More specifically, the axial elastic element 53 consists of a spring 5.2 and annular plates 5.1 connected to both ends of the spring 5.2. The outer periphery of the wheel axle 52 has a protrusion 57. The annular plate 5.1 near the protrusion 57 is fixedly installed on the protrusion 57, and the annular plate 5.1 near the wheel axle frame 54 is fixedly installed on the wheel axle frame 54. Small balls 5.3 are distributed on the abutting surface of the annular plate 5.1 abutting against the guide rope wheel 51. The small balls 5.3 are rolled into contact with the side of the guide rope wheel 51.

[0030] As attachedFigure 4 , attached Figure 5 and attached Figure 6 As shown in the drawings, the lock rope mechanism 8 includes a lock rope driving part 81 corresponding to the pair of rope arms 80; the rope arms 80 of the lock rope mechanism 8 include an arm mounting part 8.1 and an arm body part 8.2, and the arm body part 8.2 is mounted on the lock rope driving part 81 through the arm mounting part 8.1; the width of the arm body part 8.2 is smaller than the width of the arm mounting part 8.1, so that when the pair of rope arms 80 are driven by the lock rope driving part 81 to move towards the middle position and gather the two single ropes, the pair of rope arms 80 form a clamping space 8a that limits the two single ropes, and the pair of rope arms 80 change the width of the clamping space 8a to realize the clamping and locking action and the loosening and releasing action of the two single ropes. After the clamping space 8a is formed, the two single ropes can be limited in the clamping space 8a, and clamping is necessarily successful, avoiding the situation of clamping and releasing.

[0031] In the clamping and locking action state of the pair of rope arms 80, the single rope is gathered and clamped by the arm body part 8.2 of the pair of rope arms 80, as shown in the attached Figure 3 In order to avoid clamping slip, the gathering and clamping surface 20 of the arm body part 8.2 has an anti-slip pattern.

[0032] The above is only the preferred embodiment of the present application, it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A gravity davit wiring system characterized by: The application relates to a wiring system applied to a gravity type davit for collecting and releasing a lifeboat (1), which comprises a lifting rope (3), a guide rope assembly, a floating trolley assembly (4) and a rope locking mechanism (8). The guide rope assembly comprises a double-wheel guide rope assembly and a single-wheel guide rope assembly (7); the lifting rope (3) is double-rope structure for lifting the floating trolley assembly (4), one single rope is sequentially guided by the double-wheel guide rope assembly and the single-wheel guide rope assembly (7) to a boat launching winch (2), and the other single rope is guided by the double-wheel guide rope assembly to a fixed connection end (10); a guide rope wheel (51) of the double-wheel guide rope assembly can rotate circumferentially and axially slide relative to a wheel shaft (52) of the double-wheel guide rope assembly, and the axial sliding of the guide rope wheel (51) has self-adaptive resistance; in the process of lifting and releasing the lifeboat, when the lifting rope (3) is inclined, the guide rope wheel (51) is axially slid under the action of the self-adaptive resistance, so that the guide rope wheel (51) keeps following the guide state of the lifting rope (3); The rope locking mechanism (8) is arranged on an outer shell (41) of the floating trolley assembly (4), the rope locking mechanism (8) has a pair of rope clamping arms (80) corresponding to the lifting rope (3), the rope clamping arms (80) can gather and clamp the two single ropes, so that the movable connection state of the lifting rope (3) and the floating trolley assembly (4) is converted into the fixed connection state of the lifting rope (3) and the floating trolley assembly (4); The double-wheel guide rope assembly is divided into a head double-wheel guide rope assembly (5) and a guide double-wheel guide rope assembly (6), the head double-wheel guide rope assembly (5) is arranged on a davit arm of the gravity type davit, and the guide double-wheel guide rope assembly (6) is arranged on a seat frame of the gravity type davit; In the head double-wheel guide rope assembly (5), the guide rope wheel (51) is axially slid under the action of the self-adaptive resistance through the pulling action of the lifting rope (3) in the inclined state between the floating trolley assembly (4) and the head double-wheel guide rope assembly (5), so that the guide rope wheel (51) of the head double-wheel guide rope assembly (5) keeps following the guide state of the lifting rope (3) in the interval; In the guide double-wheel guide rope assembly (6), the guide rope wheel (51) is axially slid under the action of the self-adaptive resistance through the pulling action of the lifting rope (3) in the inclined state between the head double-wheel guide rope assembly (5) and the guide double-wheel guide rope assembly (6), so that the guide rope wheel (51) of the guide double-wheel guide rope assembly (6) keeps following the guide state of the lifting rope (3) in the interval; The rope locking mechanism (8) comprises rope locking driving parts (81) corresponding to the rope clamping arms (80); the rope clamping arms (80) of the rope locking mechanism (8) comprise arm mounting parts (8.1) and arm body parts (8.2), the arm body parts (8.2) are mounted on the rope locking driving parts (81) through the arm mounting parts (8.1); the width of the arm body parts (8.2) is smaller than the width of the arm mounting parts (8.1), so that when the pair of rope clamping arms (80) are driven to displace towards the middle position to gather the two single ropes, the pair of rope clamping arms (80) form a clamping space (8a) for limiting the two single ropes.

2. A gravity davit wiring system according to claim 1, wherein: The adaptive resistance is an axial elastic force provided by an axial elastic member (53) arranged on the wheel shaft (52) and elastically acting on the rope guide wheel (51).

3. A gravity davit wiring system according to claim 2, wherein: The double-wheel rope guide assembly further comprises the axial elastic member (53); the wheel shaft (52) is arranged on a corresponding wheel shaft support (54), and the axial elastic member (53) is arranged between the rope guide wheel (51) and the rope guide wheel (51) and between the rope guide wheel (51) and the wheel shaft support (54) so that the two axial sides of the rope guide wheel (51) are provided with the axial elastic force provided by the axial elastic member (53).

4. A gravity davit wiring system according to claim 3, wherein: The axial elastic member (53) is in abutting contact with the rope guide wheel (51) in the axial direction, and the axial elastic member (53) is in rolling contact with the rope guide wheel (51) in the radial plane.

5. A gravity davit wiring system according to claim 4, wherein: The pair of rope gathering arms (80) change the width of the clamping space (8a) to realize the clamping and locking action and the loosening and releasing action on the two single ropes.

6. A gravity-type davit wiring system according to claim 5, wherein: In the clamping and locking action state of the pair of rope gathering arms (80), the arm body (8.2) of the pair of rope gathering arms (80) gathers and clamps the single rope, and the gathering and clamping surface (20) of the arm body (8.2) has an anti-skid pattern.

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