Fixing device for marine electric variable-amplitude lifting hook pulley in non-working state

Abstract

The utility model discloses a fixing device for a marine electric variable-amplitude lifting hook pulley in a non-working state. The fixing device comprises a fixer for connecting the lifting hook pulley of an electric variable-amplitude crane with a suspension arm shelf, the fixing device comprises a telescopic arm, the two ends of the telescopic arm are a swing end connected with the suspension arm shelf and a locking end corresponding to the hook pulley respectively, and when the telescopic arm swings and stretches out and draws back to enable the locking end to move to a fixed position corresponding to the hook pulley, the locking end is connected with the hook pulley in a locked mode. According to the utility model, the locking end and the lifting hook pulley are locked through swinging and stretching of the telescopic arm, so that the lifting hook pulley is flexibly positioned and stably fixed in a non-working state, and the shaking risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric amplitude change hoist technical field, especially relate to marine electric amplitude change hook trolley non -working state fixing device. BACKGROUND

[0002] The electric amplitude change crane in non -working state, the hook trolley usually needs to utilize the hook fixing device to fix or fix on the boom rack to prevent accidental movement or the sway caused by wind load. The traditional fixed mode adopts the steel wire rope binding or the bolt to position, and there is the defect such as low operating efficiency, labor intensity, and the influence of environment is remarkable. In addition, the traditional bolt type locking lacks initiative positioning ability, and there is still the risk of trolley micro swing under strong wind environment, which may accelerate the wear of pulley block and reduce the service life of equipment. SUMMARY

[0003] The utility model discloses a marine electric amplitude change hook trolley non -working state fixing device, and the locking end is locked with the hook trolley through the swing and the telescopic arm, the flexible positioning and the firm fixing of the hook trolley under non -working state are realized, and the sway risk is reduced.

[0004] Technical scheme: in order to realize the above-mentioned purpose, the utility model discloses a marine electric amplitude change hook trolley non -working state fixing device, including the fixed ware that the hook trolley of electric amplitude change hoist is connected with boom rack;The fixed ware includes telescopic arm, and the two ends of telescopic arm are swing end and locking end corresponding with hook trolley respectively, and the locking end is connected with the locking end of hook trolley when the locking end is moved to the fixed position corresponding with hook trolley through the swing and the telescopic arm, and the locking end is locked.

[0005] Further, the telescopic arm is composed of a telescopic drive part arranged inside a sleeve housing, and the telescopic arm performs the telescopic action along the length direction of the arm body by the driving force provided by the telescopic drive part.

[0006] Further, the swing end is provided with a swing shaft fixedly installed on the arm seat of the telescopic arm and a swing drive part drivingly connected with the swing shaft, the telescopic arm is installed on the boom rack through the swing shaft, and the swing drive part provides the driving force to perform the up-down swing action.

[0007] Further, the locking end is provided with a lock plate, and the hook trolley is provided with a lock rod;The lock rod is perpendicularly inserted with the lock plate, and a pre-locking structure mode is formed.

[0008] Further, the lock plate is provided with a lock hole, and the lock rod is provided with a locking nut;The lock rod is locked by the locking nut after being inserted into the lock hole, and a final locking structure mode is formed.

[0009] Further, the lock rod is fixedly installed on the side plate of the hook trolley and is perpendicular to the plate surface of the side plate.

[0010] Further, the lock plate is provided with a pad cylinder coaxial with the lock hole on the plate side facing the hook trolley, and the pad cylinder abuts against the side plate to fix the hook trolley in the final locking structure mode.

[0011] Further, the pad cylinder is composed of two cylindrical threaded sleeves, so that the pad cylinder can be length-adjusted to fit the space between the lock plate and the hook trolley.

[0012] Beneficial effects: The utility model discloses a swingable and telescopic fixer, which realizes the connection of the hook trolley and the boom shelf, fixes the hook trolley in the non-working state, and reduces the shaking risk; the swing and telescopic bidirectional movement characteristics of the telescopic arm make the locking end have more flexible and wider positioning capability, can adapt to the hook trolleys of different parking height positions, and prevent the structure damage and safety risk caused by the shaking of the hook trolley. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic diagram of the utility model;

[0014] Figure 2 It is the overall structure schematic diagram of the fixer;

[0015] Figure 3 It is the partial structure exploded view of the fixer. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings.

[0017] As shown in Figure 1 and Figure 2 The utility model discloses a non-working state fixing device of marine electric luffing hook trolley, which comprises a fixer 4 connecting a hook trolley 3 of an electric luffing hook 1 and a boom shelf 2; the fixer 4 comprises a telescopic arm 5, two ends of the telescopic arm 5 are respectively a swing end a connected with the boom shelf 2 and a locking end b corresponding to the hook trolley 3, and when the locking end b is moved to the fixed position corresponding to the hook trolley 3 through swing and telescopic movement of the telescopic arm 5, the locking end b is locked and connected with the hook trolley 3. The utility model discloses a swingable and telescopic fixer 4, which realizes the connection of the hook trolley 3 and the boom shelf 2, fixes the hook trolley 3 in the non-working state, and reduces the shaking risk; the swing and telescopic bidirectional movement characteristics of the telescopic arm make the locking end b have more flexible and wider positioning capability, can adapt to the hook trolleys 3 of different parking height positions, and the mechanical locking structure enhances the wind load resistance in the non-working state, prevents the structure damage and safety risk caused by the shaking of the hook trolley.

[0018] As Figure 3 shown, the telescopic arm 5 is composed of a telescopic drive part 52 arranged inside a sleeve shell 51, and the telescopic arm 5 performs telescopic action along the length direction of the arm body by the driving force provided by the telescopic drive part 52. The telescopic action is guaranteed to be linear by adopting a nested structure, and the telescopic drive part 52 can be selected as an electric push rod to realize built-in driving automation control and improve operation efficiency.

[0019] As Figure 2 shown, the swing end a is provided with a swing shaft 6 fixedly installed on an arm seat 50 of the telescopic arm 5 and a swing drive part 7 drivingly connected with the swing shaft, and the telescopic arm 5 is installed on the hoist arm shelf 2 through the swing shaft 6 and performs up and down swing action by the driving force provided by the swing drive part 7. The swing can adapt to the locking of the hook trolley 3 at different heights, and in order to improve the swing precision, the swing drive part 7 can be selected as a servo motor.

[0020] As Figure 2 and Figure 3 shown, the locking end b is provided with a lock plate 8, and the hook trolley 3 is provided with a lock rod 9; the lock rod 9 is vertically inserted with the lock plate 8 to form a pre-locking structure mode, so as to quickly position the structure and shorten the locking preparation time, and the vertical insertion can eliminate the displacement of the hook trolley 3 in the length direction of the telescopic arm 5, thereby improving the positioning precision.

[0021] The lock plate 8 is provided with a lock hole 80, and the lock rod 9 is provided with a locking nut 90; after the lock rod 9 is inserted into the lock hole 80, the locking nut 90 is locked to form a final locking structure mode. The double locking mechanism of insertion and threaded fastening enhances the connection reliability, and also facilitates disassembly, so that the hook trolley 3 quickly enters the hoisting operation.

[0022] More specifically, the lock rod 9 is fixedly installed on the side plate 30 of the hook trolley 3 and is perpendicular to the plate surface of the side plate 30, thereby optimizing the stress direction and avoiding lateral bending moment.

[0023] As Figure 2 shown, the lock plate 8 is provided with a pad cylinder 10 on the plate side facing the hook trolley 3, and the pad cylinder 10 is coaxial with the lock hole 80; in the final locking structure mode, the pad cylinder 10 abuts against the side plate 30 to fix the hook trolley 3. The pad cylinder 10 can form a rigid support surface to disperse the locking stress, eliminate gap vibration and improve the fixing stability.

[0024] As Figure 3 shown, the pad cylinder 10 is composed of two cylindrical threaded sleeves, so that the pad cylinder 10 can adapt to the space between the lock plate 8 and the hook trolley 3 for length adjustment. The purpose of length adjustment of the pad cylinder 10 is:

[0025] When the electric variable amplitude crane 1 is in a non-working state, the hook trolley 3 naturally droops, when the fixing device 4 of the utility model is used to fix the hook trolley 3, the spacer 10 has the effect of filling the space between the locking plate 8 and the side plate 30, thereby preventing the hook trolley 3 from being skewed after being locked, and in order to keep the hook trolley 3 in the position when it naturally droops as much as possible, the spacer 10 is adjusted in length, thereby achieving space filling and distance compensation, so that the hook trolley 3 can be kept in the original position as much as possible when being locked, the sling of the electric variable amplitude crane 1 and the fixing device 4 jointly provide support for the hook trolley 3, thereby achieving sharing of the supporting force of the fixing device 4, prolonging the service life of the fixing device 4 and improving safety.

[0026] Two cylinders, one of which is an inner cylinder 10.1 fixed on the locking plate 8 by an inner hexagonal screw, and the other is an outer cylinder 10.2 threadedly fitted on the inner cylinder 10.1.

[0027] The fixing device provides a flexible, stable and adaptable fixing scheme for the hook trolley in a non-working state, significantly improving the safety and operation convenience of the equipment.

[0028] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, several improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements should also be considered within the protection scope of the utility model.

Claims

1. A non-working state fixing device for an electrically driven luffing hook trolley of a ship, characterized in that: The utility model relates to a fixing device (4) for connecting a hook trolley (3) of an electrically driven luffing crane (1) to a boom rest (2), the fixing device (4) comprising a telescopic arm (5) having a swinging end (a) connected to the boom rest (2) and a locking end (b) corresponding to the hook trolley (3), the telescopic arm (5) being arranged to move the locking end (b) to a fixed position corresponding to the hook trolley (3) by swinging and telescoping, and the locking end (b) being locked to the hook trolley (3) when the locking end (b) is in the fixed position.

2. The non-working position fixing device for the electrically driven luffing hook trolley of a ship according to claim 1, characterized in that: The telescopic arm (5) is composed of a telescopic driving part (52) arranged inside a sleeve housing (51), and the telescopic arm (5) is driven by the telescopic driving part (52) to perform telescoping along the length direction of the arm body.

3. The non-working position fixing device for electrically driven luffing hook trolley of a ship according to claim 1, characterized in that: The swinging end (a) is provided with a swing shaft (6) fixedly installed on an arm seat (50) of the telescopic arm (5) and a swinging driving part (7) drivingly connected to the swing shaft (6), the telescopic arm (5) is installed on the boom rest (2) through the swing shaft (6), and the swinging driving part (7) is arranged to provide driving force to perform up-and-down swinging.

4. The non-working position fixing device for electrically driven luffing hook trolley of a ship according to claim 1, characterized in that: The locking end (b) is provided with a locking plate (8), and the hook trolley (3) is provided with a locking rod (9); the locking rod (9) is perpendicularly inserted into the locking plate (8) to form a pre-locking structure.

5. The non-working position fixing device for the electrically driven luffing hook trolley of a ship according to claim 4, characterized in that: The locking plate (8) is provided with a locking hole (80), and the locking rod (9) is provided with a locking nut (90); the locking rod (9) is locked by the locking nut (90) after being inserted into the locking hole (80) to form a final locking structure.

6. The non-working position fixing device for electrically driven luffing hook trolley of a ship according to claim 5, characterized in that: The locking rod (9) is fixedly installed on a side plate (30) of the hook trolley (3) and is perpendicular to the plate surface of the side plate (30).

7. The non-working position fixing device for electrically driven luffing hook trolley of a ship according to claim 6, characterized in that: The locking plate (8) is provided with a spacer (10) on the plate side facing the hook trolley (3), and the spacer (10) is coaxial with the locking hole (80); in the final locking structure, the spacer (10) abuts against the side plate (30) to fix the hook trolley (3).

8. The non-working position fixing device for electrically driven luffing hook trolley of a ship according to claim 7, characterized in that: The spacer (10) is composed of two cylindrical threaded sleeves, so that the spacer (10) can be adjusted in length to fit the space between the locking plate (8) and the hook trolley (3).

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