Large ship crane fixed pulley hanging row with anti-shaking structure

Abstract

The utility model discloses a ship large crane fixed pulley hanging row with an anti-shaking structure, and relates to the technical field of ship equipment. Rotating rods are rotationally connected to the two supporting rods on the upper side and the lower side of the telescopic connecting rod through shaft rods, and the other ends of the rotating rods are rotationally connected to the front side wall and the rear side wall of the fixing plate and the mounting plate through shaft rods; the limiting mechanism is arranged in the lower side wall of the mounting plate, and the limiting mechanism is matched with the hook; the second pulley is arranged on the middle side of the interior of the groove of the fixing plate, the third pulleys are arranged on the upper side of the interior of the groove of the fixing plate in a bilateral symmetry mode, the third pulleys are connected with the fixing plate through the adjusting mechanism, and the middle end of the connecting rope is located on the interior of the groove of the fixing plate; the two ends of the connecting rope sequentially penetrate through the corresponding third pulley and the side, away from the third pulley, of the second pulley, then penetrate through the upper side of the first pulley and are fixed to the mounting plate. And the stability between the mounting plate and the fixing plate can be improved, the shaking phenomenon can be prevented when goods are hoisted, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine equipment, in particular to a fixed pulley hoisting row of a large ship crane with an anti-swaying structure. Background Art

[0002] Large ship cranes are important equipment for loading and unloading cargo and performing various lifting operations, especially on large cargo ships and oil tankers, where the lifting capacity and performance requirements are very high. The fixed pulley sling structure, as the core component of the crane, has the main function of supporting and transferring the weight of the cargo, which has a significant impact on the crane's lifting capacity, stability and safety. When traditional large ship crane fixed pulley sling structures are in use, they need to be moved upward to a certain height. The higher the height, the more likely they are to shake, posing a safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a fixed pulley sling for a large ship crane with a reasonable design and easy use and an anti-sway structure in response to the defects and shortcomings of the existing technology, which can effectively solve the defects of the above-mentioned existing technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises a fixing plate, a mounting plate, a first pulley, a connecting rope and a hook, wherein the first pulley is symmetrically arranged in the groove on the lower side wall of the fixing plate through a shaft, and a connecting rope is arranged on the outer side of the first pulley, and the two ends of the connecting rope pass through the lower side wall of the fixing plate groove respectively and are fixedly connected to the two side walls of the mounting plate, the mounting plate is suspended on the lower side of the fixing plate, and a hook is fixed on the lower side of the mounting plate; the utility model further comprises:

[0005] There are two telescopic connecting rods, and they are symmetrically arranged on both sides between the fixed plate and the mounting plate. The two support rods on the upper and lower sides of the telescopic connecting rod are screwed with a rotating rod through a shaft, and the other end of the rotating rod is screwed to the front and rear side walls of the fixed plate and the mounting plate respectively through the shaft;

[0006] A limiting mechanism is provided in the lower side wall of the mounting plate and is provided in cooperation with the hook;

[0007] The second pulley is provided in two pieces and is symmetrically arranged on the middle side of the groove inside the fixed plate. The third pulley is symmetrically arranged on the upper side of the groove inside the fixed plate. The third pulley is connected to the fixed plate through an adjustment mechanism. The middle end of the connecting rope is located on the inner side of the groove of the fixed plate. The two ends of the connecting rope pass through the corresponding third pulley and the second pulley away from the side of the third pulley in sequence, and then pass through the upper side of the first pulley and be fixed to the mounting plate.

[0008] Through the above technical solution, the goods are hung on the hook, and the limit mechanism is used to limit the position of the goods. Then, the crane is used to drive the fixed plate to move upward, thereby driving the goods to move upward. The connection of the telescopic connecting rod can increase the stability between the fixed plate and the mounting plate so that they will not shake. When the distance between the mounting plate and the fixed plate needs to be adjusted, the third pulley is driven to move through the adjustment mechanism to adjust the tightness of the connecting rope, thereby achieving the effect of adjusting the position of the mounting plate.

[0009] As a further improvement of the present invention, the limiting mechanism includes:

[0010] The contact plate is arranged in an arc shape and is arranged on the cross bar on the lower side of the hook. Return springs are fixed on both sides of the lower surface of the contact plate, and the return springs are embedded and fixed on the cross bar on the lower side of the hook;

[0011] A control switch is fixed to the center of the upper side of the horizontal plate on the lower side of the hook, and the control switch is located on the lower side of the contact plate;

[0012] A limit plate, the limit plate is screwed onto the strip groove on the lower surface of the mounting plate through a shaft, and the limit plate is matched with the opening of the hook and is in contact with it;

[0013] A driving rod, wherein the driving rod is located on the upper side of the limit plate, the driving rod is screwed into the mounting plate through a bearing, the driving rod is screwed into the shaft on the limit plate through a worm gear pair, one end of the driving rod is fixed to the limit motor, the limit motor is embedded and fixed in the mounting plate, and the limit motor is connected to the control switch;

[0014] Through the above technical solution, after the goods are hung in the hook, the contact plate is pushed downward, so that the reset spring is compressed. At this time, the contact plate presses the control switch downward, and the control switch starts the limit motor. The limit motor drives the drive rod to rotate, and the drive rod drives the limit plate to rotate through the worm gear pair until the limit plate rotates to the upper side of the vertical rod on one side of the hook, thereby limiting the hook.

[0015] As a further improvement of the present invention, a telescopic rod is provided inside the reset spring, and the upper and lower ends of the telescopic rod are respectively fixed to the lower surface of the contact plate and the inner bottom wall of the cross bar of the hook;

[0016] The above technical solution can facilitate the support of the return spring without affecting the expansion and contraction of the return spring.

[0017] As a further improvement of the present invention, a non-slip pad is fixed on the upper surface of the contact plate;

[0018] Through the above technical solution, the friction between the cargo and the resistance plate can be increased to prevent the cargo from sliding in the hook.

[0019] As a further improvement of the present invention, the adjustment mechanism includes:

[0020] There are four adjustment blocks, and two of them are symmetrically connected to the two ends of the third pulley through the shaft, and the adjustment blocks are slidably set in the slide grooves on the front and rear inner walls of the groove;

[0021] There are two bidirectional screw rods, which are symmetrically arranged in the front and rear walls of the groove through bearings. The two ends of the bidirectional screw rods are respectively screwed to the adjacent adjustment blocks through threads, and the two bidirectional screw rods are connected by a synchronous wheel transmission assembly;

[0022] An adjusting motor, wherein the adjusting motor is embedded in and fixed to one side of the fixing plate, and the output shaft of the adjusting motor is fixedly connected to one end of one of the bidirectional screw rods;

[0023] Through the above technical solution, the adjusting motor is started, and the adjusting motor drives the bidirectional screw connected to it to rotate. The bidirectional screw drives another bidirectional screw to rotate through the synchronous wheel transmission assembly. The two bidirectional screws drive the corresponding pulley No. 3 to move through the adjustment blocks at both ends until the pulley No. 3 moves to the appropriate position.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: the fixed pulley lifting rack of a large ship crane with an anti-sway structure described in the present invention can increase the stability between the mounting plate and the fixed plate, and can prevent swaying when lifting cargo, thereby improving safety. The present invention has the advantages of reasonable setting and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present utility model.

[0026] Figure 2 It is a cross-sectional view of the present invention.

[0027] Figure 3 This is an exploded view of the hook and limiting mechanism in the utility model.

[0028] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0029] Figure 5 This is a schematic diagram of the structure of the utility model after the cargo is hoisted.

[0030] Description of reference numerals:

[0031] Fixed plate 1, mounting plate 2, pulley No. 1 3, connecting rope 4, hook 5, telescopic connecting rod 6, rotating rod 7, limiting mechanism 8, contact plate 8-1, return spring 8-2, control switch 8-3, limiting plate 8-4, driving rod 8-5, limiting motor 8-6, pulley No. 2 9, pulley No. 3 10, adjusting mechanism 11, adjusting block 11-1, bidirectional screw rod 11-2, adjusting motor 11-3, telescopic rod 12, anti-slip pad 13. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0033] Example 1:

[0034] like Figure 1-Figure 5 As shown, this embodiment includes a fixed plate 1, a mounting plate 2, a first pulley 3, a connecting rope 4 and a hook 5. The first pulley 3 is symmetrically arranged in the groove on the lower side wall of the fixed plate 1 through a shaft, and the outer side of the first pulley 3 is abutted with a connecting rope 4. The two ends of the connecting rope 4 pass through the lower side wall of the groove of the fixed plate 1 and are fixedly connected to the two side walls of the mounting plate 2. The mounting plate 2 is suspended on the lower side of the fixed plate 1, and a hook 5 is fixed to the lower side of the mounting plate 2. It also includes:

[0035] The telescopic connecting rod 6 is two and symmetrically arranged on both sides between the fixed plate 1 and the mounting plate 2. The two support rods on the upper and lower sides of the telescopic connecting rod 6 are both screwed with a rotating rod 7 through a shaft, and the other end of the rotating rod 7 is screwed to the front and rear side walls of the fixed plate 1 and the mounting plate 2 respectively through a shaft;

[0036] The limiting mechanism 8 is provided in the lower side wall of the mounting plate 2 and is provided in cooperation with the hook 5;

[0037] There are two No. 2 pulleys 9, and the No. 2 pulleys 9 are symmetrically arranged on the middle side of the groove inside the fixed plate 1. The No. 3 pulley 10 is symmetrically arranged on the upper side of the groove inside the fixed plate 1. The No. 3 pulley 10 is connected to the fixed plate 1 through an adjustment mechanism 11. The middle end of the connecting rope 4 is located on the inside of the groove of the fixed plate 1. The two ends of the connecting rope 4 pass through the corresponding No. 3 pulley 10 and the No. 2 pulley 9 away from the side of the No. 3 pulley 10 in sequence, and then pass through the upper side of the No. 1 pulley 3 and be fixed on the mounting plate 2.

[0038] Example 2:

[0039] See Figure 1-5 As shown, based on Example 1, the limiting mechanism 8 includes:

[0040] The contact plate 8-1 is arranged in an arc shape. The contact plate 8-1 is arranged on the cross bar on the lower side of the hook 5. An anti-slip pad 13 is glued and fixed on the upper surface of the contact plate 8-1, which can increase the friction between the goods and the contact plate 8-1 and prevent the goods from sliding in the hook 5; reset springs 8-2 are welded and fixed on both sides of the lower surface of the contact plate 8-1, and the reset spring 8-2 is embedded and welded to the cross bar on the lower side of the hook 5; a telescopic rod 12 is provided inside the reset spring 8-2, and the upper and lower ends of the telescopic rod 12 are respectively fixed to the lower surface of the contact plate 8-1 and the inner bottom wall of the cross bar of the hook 5, which can facilitate the support of the reset spring 8-2 without affecting the expansion and contraction of the reset spring 8-2;

[0041] Control switch 8-3, the control switch 8-3 is fixed to the center of the upper side of the horizontal plate on the lower side of the hook 5 by bolts, and the control switch 8-3 is located on the lower side of the contact plate 8-1;

[0042] The limiting plate 8-4 is screwed to the strip groove on the lower surface of the mounting plate 2 through a shaft, and the limiting plate 8-4 is matched with the opening of the hook 5 to interfere with the setting;

[0043] The driving rod 8-5 is located on the upper side of the limit plate 8-4. The driving rod 8-5 is screwed into the mounting plate 2 through a bearing. The driving rod 8-5 is screwed to the shaft on the limit plate 8-4 through a worm gear pair. One end of the driving rod 8-5 is fixed with a limit motor 8-6. The limit motor 8-6 is embedded and fixed in the mounting plate 2. The limit motor 8-6 is connected to the control switch 8-3.

[0044] Example 3:

[0045] See Figure 2 As shown, based on Example 1, the adjustment mechanism 11 includes:

[0046] There are four adjustment blocks 11-1, and two of them are symmetrically connected to the ends of the third pulley 10 through the shaft. The adjustment blocks 11-1 are slidably set in the slide grooves on the front and rear inner walls of the groove;

[0047] Two bidirectional screw rods 11-2 are provided, and are symmetrically arranged in the front and rear walls of the groove through bearings. The two ends of the bidirectional screw rods 11-2 are respectively screwed to the adjacent adjustment blocks 11-1 through threads, and the two bidirectional screw rods 11-2 are connected by a synchronous wheel transmission assembly;

[0048] The adjusting motor 11-3 is embedded in and fixed on the right side of the fixing plate 1, and the output shaft of the adjusting motor 11-3 is fixedly connected to the right end of the bidirectional screw rod 11-2 on the front side.

[0049] When using the utility model, the goods are hung on the hook 5. After the goods are hung in the hook 5, the contact plate 8-1 is pushed downward, so that the return spring 8-2 is compressed. At this time, the contact plate 8-1 presses the control switch 8-3 downward, and the control switch 8-3 starts the limit motor 8-6. The limit motor 8-6 drives the driving rod 8-5 to rotate, and the driving rod 8-5 drives the limit plate 8-4 to rotate through the worm gear pair until the limit plate 8-4 rotates to the upper side of the vertical rod on one side of the hook 5, thereby limiting the hook 5, and then the fixed plate 1 is driven upward by the crane, thereby driving the goods to move upward, and the connection of the telescopic connecting rod 6 is realized. When the distance between the mounting plate 2 and the fixed plate 1 needs to be adjusted, the adjusting motor 11-3 is started, and the adjusting motor 11-3 drives the bidirectional screw rod 11-2 connected thereto to rotate, and the bidirectional screw rod 11-2 drives another bidirectional screw rod 11-2 to rotate through the synchronous wheel transmission assembly. The two bidirectional screw rods 11-2 respectively drive the corresponding No. 3 pulley 10 to move through the adjusting blocks 11-1 at both ends until the No. 3 pulley 10 moves to the appropriate position, thereby adjusting the tightness of the connecting rope 4 to achieve the effect of adjusting the position of the mounting plate 2.

[0050] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:

[0051] 1. The mounting plate 2 and the fixed plate 1 can be connected by a telescopic connecting rod 6 to increase the stability between the mounting plate 2 and the fixed plate 1. When lifting the goods, shaking can be prevented, thereby improving safety;

[0052] 2. A limit mechanism 8 is provided on one side of the hook 5, which can limit the position of the hook 5 when lifting goods, thereby preventing the goods from falling out;

[0053] 3. The position of the third pulley 10 can be adjusted by the adjustment mechanism 11, thereby adjusting the tightness of the connecting rope 4 to achieve the effect of adjusting the height of the mounting plate 2.

[0054] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A fixed pulley hanging row for a large ship crane with an anti-swaying structure, comprising a fixed plate (1), a mounting plate (2), a first pulley (3), a connecting rope (4) and a hook (5), wherein the first pulley (3) is symmetrically arranged in the groove on the lower side wall of the fixed plate (1) through a shaft, and a connecting rope (4) is arranged on the outer side of the first pulley (3), and the two ends of the connecting rope (4) respectively pass through the lower side wall of the groove of the fixed plate (1) and are fixedly connected to the two side walls of the mounting plate (2), the mounting plate (2) is suspended on the lower side of the fixed plate (1), and a hook (5) is fixed on the lower side of the mounting plate (2); the characteristics are: It also contains: The telescopic connecting rod (6) is provided in two pieces and is symmetrically arranged on both sides between the fixed plate (1) and the mounting plate (2). The two supporting rods on the upper and lower sides of the telescopic connecting rod (6) are both screwed with a rotating rod (7) through a shaft, and the other end of the rotating rod (7) is screwed to the front and rear side walls of the fixed plate (1) and the mounting plate (2) through the shaft respectively. A limiting mechanism (8), wherein the limiting mechanism (8) is arranged in the lower side wall of the mounting plate (2), and the limiting mechanism (8) is arranged in coordination with the hook (5); The second pulley (9) is two and is symmetrically arranged on the middle side of the groove inside the fixed plate (1). The third pulley (10) is symmetrically arranged on the upper side of the groove inside the fixed plate (1). The third pulley (10) is connected to the fixed plate (1) through an adjustment mechanism (11). The middle end of the connecting rope (4) is located on the inner side of the groove of the fixed plate (1). The two ends of the connecting rope (4) pass through the corresponding third pulley (10) and the second pulley (9) away from the side of the third pulley (10) in sequence, and then pass through the upper side of the first pulley (3) and fixed on the mounting plate (2).

2. The fixed pulley sling for a large ship crane with an anti-sway structure according to claim 1, characterized in that: The limiting mechanism (8) comprises: A contact plate (8-1), the contact plate (8-1) is arranged in an arc shape, and the contact plate (8-1) is arranged on the crossbar on the lower side of the hook (5). Return springs (8-2) are fixed on both sides of the lower surface of the contact plate (8-1), and the return springs (8-2) are embedded in and fixed on the crossbar on the lower side of the hook (5); A control switch (8-3), wherein the control switch (8-3) is fixed to the center of the upper side of the horizontal plate on the lower side of the hook (5), and the control switch (8-3) is located on the lower side of the contact plate (8-1); A limit plate (8-4), wherein the limit plate (8-4) is screwed onto the lower surface of the mounting plate (2) via a shaft, and the limit plate (8-4) is arranged to cooperate with and abut against the opening of the hook (5); A driving rod (8-5), wherein the driving rod (8-5) is located on the upper side of the limit plate (8-4), the driving rod (8-5) is screwed into the mounting plate (2) through a bearing, the driving rod (8-5) is screwed into the shaft on the limit plate (8-4) through a worm gear pair, one end of the driving rod (8-5) is fixed with a limit motor (8-6), the limit motor (8-6) is embedded and fixed in the mounting plate (2), and the limit motor (8-6) is connected to the control switch (8-3).

3. The fixed pulley sling for a large ship crane with an anti-sway structure according to claim 2, characterized in that: A telescopic rod (12) is provided inside the reset spring (8-2), and the upper and lower ends of the telescopic rod (12) are respectively fixed to the lower surface of the contact plate (8-1) and the inner bottom wall of the crossbar of the hook (5).

4. The fixed pulley sling for a large ship crane with an anti-sway structure according to claim 2, characterized in that: An anti-slip pad (13) is fixed on the upper surface of the contact plate (8-1).

5. The fixed pulley sling for a large ship crane with an anti-sway structure according to claim 1, characterized in that: The regulating mechanism (11) comprises: Adjustment blocks (11-1), there are four adjustment blocks (11-1), and two of them are symmetrically connected to the two ends of the third pulley (10) through shafts, and the adjustment blocks (11-1) are slidably arranged in the slide grooves on the front and rear inner walls of the groove; Two bidirectional screw rods (11-2) are provided, and are symmetrically arranged in the front and rear walls of the groove through bearings. Both ends of the bidirectional screw rods (11-2) are respectively screwed to the adjacent adjustment blocks (11-1) through threads, and the two bidirectional screw rods (11-2) are connected through a synchronous wheel transmission assembly. An adjusting motor (11-3) is embedded in and fixed on one side of the fixing plate (1), and an output shaft of the adjusting motor (11-3) is fixedly connected to one end of one of the bidirectional screw rods (11-2).

Images