Lifting type hoisting crane for hydrological ship

Abstract

The invention discloses a lifting type hoisting crane for a hydrological ship, and belongs to the technical field of cranes for hydrological ships, the lifting type hoisting crane comprises a supporting seat, a displacement adjusting mechanism and a limiting mechanism, the supporting seat is in bearing connection with a rotating seat, the middle lower part of the rotating seat fixedly penetrates through an extension plate, and the upper end of the rotating seat is in shaft connection with a hoisting arm; a lifting arm is installed at the front end of the lifting arm, a supporting frame is fixedly and vertically installed at the rear end of the extending plate, a servo motor is installed on the portion, between the supporting frame and the rotating base, of the extending plate, the shaft end of the servo motor is connected with one end of a rope winding shaft through a belt transmission set, and the rope winding shaft is connected to the two supporting plates through bearings; and the two supporting plates are vertically and fixedly connected to the upper surface of the extension plate. The lifting mechanism can be adjusted, the lifting range of the crane can be adjusted, in addition, the rope winding structure can be limited through the mass of the heavy object, and therefore safety accidents caused by reverse rotation of the rope winding structure can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydrographic ship cranes, in particular to a lifting type hydrographic ship crane. Background Art

[0002] Cranes are heavy machinery widely used in industries, construction, ports, etc., mainly used to lift heavy objects; A hydrographic vessel is a vessel specially used for hydrographic survey and research. When operating a hydrographic vessel, a crane is required. The crane is installed on the deck of the hydrographic vessel, and then the heavy objects are lifted by a lifting mechanism composed of a hydraulic cylinder and a lifting arm. The existing lifting type hydrographic ship crane still has the following technical problems when in use, such as: The existing lifting-type hydrographic ship crane is not provided with a structure for adjusting the lifting mechanism when in use. Since the mass of the heavy object lifted by the hydrographic ship is unknown, if the lifting weight range of the crane is not adjustable, the lifting weight range of the crane cannot be adjusted according to the mass of the heavy object; 2. The existing lifting type hydrographic ship crane is not provided with a structure to limit the rope winding structure when in use, so that during the lifting process, the rope winding structure may rotate in reverse, causing a safety accident; Therefore, a lifting type hydrographic ship crane is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a lifting-type hydrographic ship crane to solve the problem in the above background technology that the existing lifting-type hydrographic ship crane is not provided with a structure for adjusting the lifting mechanism and is not provided with a structure for limiting the rope winding structure.

[0004] To achieve the above object, the present invention provides the following technical solutions: A lifting type hydrographic ship crane comprises a support seat, a displacement adjustment mechanism and a limit mechanism, wherein the upper bearing of the support seat is connected to a rotating seat, and the middle and lower parts of the rotating seat are fixedly arranged through an extension plate, the upper end shaft of the rotating seat is connected to a lifting arm, and a lifting arm is installed at the front end of the lifting arm, a support frame is fixedly and vertically installed at the rear end of the extension plate, and a servo motor is installed on the extension plate between the support frame and the rotating seat, the shaft end of the servo motor is connected to one end of a rope winding shaft through a belt transmission group, and the rope winding shaft bearing is connected to two support plates, and two support plates are provided. The support plate is vertically fixedly connected to the upper surface of the extension plate, one end of the rope is wound on the rope winding shaft, and the other end of the rope is supported at the front end of the boom after passing through the guide roller, a support slider is sleeved on the outer side of the boom, and the inner side of the support slider and the outer side of the boom are connected by a sliding connection, the lower end shaft of the support slider is connected to the upper end of the telescopic cylinder, and the lower end of the telescopic cylinder is connected to the extension plate through a displacement adjustment mechanism, the support frame is connected to the rear end of the boom through a limiting mechanism, and the displacement adjustment mechanism and the rope winding shaft are both connected to the limiting mechanism.

[0005] Preferably, the guide rollers are provided on both the boom and the suspension arm, and through holes are provided at the middle and rear ends of the boom, and the ropes pass through the through holes provided on the boom.

[0006] Preferably, the displacement adjustment mechanism includes a screw rod, a mounting frame, a universal caster, a limit plate, a limit rod, a spring 1, an air collecting bin and a strip hole, the strip hole is arranged at the front end of the extension plate, and the mounting frame passes through the strip hole, the lower surface of the mounting frame is installed with a universal caster, and the mounting frame is provided with an air collecting bin, the lower end of the telescopic cylinder is connected to the air collecting bin, and the middle part of the telescopic cylinder is fixedly connected to the limit plate, the upper surface of the mounting frame is fixedly connected to the lower end of the limit rod, and the upper end of the limit rod movably passes through the top of the limit plate, a spring 1 nested in the outside of the limit rod is arranged between the mounting frame and the limit plate, the middle part of the mounting frame is threaded with a screw rod, and one end bearing of the screw rod is connected to the strip hole, and the other end bearing of the screw rod passes through the outside of the front end of the extension plate.

[0007] Preferably, the axis of the strip-shaped hole is colinear with the axis of the screw rod, and a rocker is installed at the end of the screw rod extending out of the front end of the extension plate.

[0008] Preferably, the limiting rod is a T-shaped structure, and the two limiting rods are symmetrically arranged about the axis of the telescopic cylinder.

[0009] Preferably, the limiting mechanism includes an air collecting pipe, an air delivery pipe, a fixed clamp, a piston rod, an installation groove, a positioning rod, a pressure rod, a second spring, a ratchet plate and a ratchet; the upper end of the support frame is fixedly installed with the air collecting pipe, and the air collecting pipe is connected with the air collecting bin through the air delivery pipe; the air delivery pipe is fixed to the side of the rotating seat through the fixed clamp; the upper end of the piston rod is seamlessly slidably connected in the air collecting pipe, and the lower end of the piston rod movably passes through the bottom of the support frame; the lower end of the piston rod is fixedly connected to the pressure rod, and the rear end of the lifting arm passes through the support frame. A mounting groove is provided on one side of the support frame facing the rotating seat, and a positioning rod is installed in the mounting groove, the two positioning rods are connected by a pressure rod, and the pressure rod is arranged above the rear end of the lifting arm, each of the positioning rods is movably penetrated by a ratchet plate, and the upper ends of the two ratchet plates are respectively fixedly connected to the two ends of the pressure rod, and the two ends of the pressure rod are also movably penetrated by the positioning rod, and two springs nested in the outside of the positioning rod are provided between the upper end of the pressure rod and the inner top end of the mounting groove, the side of the ratchet plate is meshed and connected with a ratchet, and the ratchet key is connected to the rope winding shaft.

[0010] Preferably, a piston plate is provided at the lower end of the telescopic cylinder, and the piston plate at the lower end of the telescopic cylinder is seamlessly slidably connected to the air collecting bin.

[0011] Preferably, the pressure rod is an I-shaped structure, and the pressure rod is arranged directly below the piston rod.

[0012] Preferably, one end of the gas delivery pipe is arranged near the top end of the gas collecting pipe, and the other end of the gas delivery pipe is arranged near the bottom end of the gas collecting bin.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the lifting mechanism of the hydrographic ship crane can be adjusted, and thus the lifting range of the crane can be adjusted. In addition, the rope winding structure can be limited by the mass of the heavy object, thereby avoiding safety accidents caused by reverse rotation of the rope winding structure: 1. The position of the mounting frame can be adjusted by rotating the screw rod. During the movement of the mounting frame, the telescopic cylinder drives the support slider to slide on the boom, thereby adjusting the position of the support slider on the boom. By changing the position of the support slider on the boom, the lifting position of the lifting structure composed of the boom and the jib can be changed, thereby changing the weight range of the crane; 2. In the process of lifting heavy objects, the mass of the heavy objects can increase the pressure of the crane arm on the telescopic cylinder, thereby causing the telescopic cylinder to move toward the air collecting bin, thereby achieving the effect of squeezing the gas in the air collecting bin. After the gas in the air collecting bin is squeezed, it enters the air collecting pipe through the gas pipe, thereby increasing the air pressure in the air collecting pipe, causing the piston rod to move downward, thereby driving the pressure rod to press down the rear end of the crane arm. During the process of the rear end of the crane arm being pressed downward, the pressure rod and the ratchet plate move downward. At this time, under the action of the ratchet plate and the ratchet wheel, the rope winding shaft can only wind the rope, thereby limiting the rope winding structure and avoiding safety accidents caused by the rope winding shaft releasing the rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of point A; Figure 3 It is a rear-view stereoscopic structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of point B in the middle; Figure 6 This is a schematic diagram of the connection structure between the gas collecting pipe and the mounting frame of the present invention; Figure 7 It is a schematic diagram of a partial cross-sectional connection structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0015] In the figure: 1. support seat; 2. rotating seat; 3. lifting arm; 4. boom; 5. supporting slide block; 6. telescopic cylinder; 7. rope; 8. guide roller; 9. servo motor; 10. belt drive group; 11. support frame; 12. gas collecting pipe; 13. gas delivery pipe; 14. fixed clamp; 15. piston rod; 16. extension plate; 17. screw rod; 18. mounting frame; 19. universal caster; 20. limit plate; 21. limit rod; 22. spring 1; 23. gas collecting chamber; 24. strip hole; 25. mounting groove; 26. positioning rod; 27. pressure rod; 28. spring 2; 29. ​​ratchet plate; 30. ratchet; 31. rope winding shaft; 32. support plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 8 , the present invention provides the following technical solutions: Embodiment 1:

[0018] In order to solve the problem that the lifting mechanism on the hydrographic ship crane in the past cannot be adjusted, the following technical solutions are provided, specifically, A lifting type hydrographic ship crane comprises a support seat 1, a displacement adjustment mechanism and a limit mechanism, wherein a rotating seat 2 is connected to the upper bearing of the support seat 1, and the middle and lower parts of the rotating seat 2 are fixedly penetrated through an extension plate 16, the upper end shaft of the rotating seat 2 is connected to a lifting arm 3, and a lifting arm 4 is installed at the front end of the lifting arm 3, a support frame 11 is fixedly and vertically installed at the rear end of the extension plate 16, and a servo motor 9 is installed on the extension plate 16 between the support frame 11 and the rotating seat 2, the shaft end of the servo motor 9 is connected to one end of a rope winding shaft 31 through a belt transmission group 10, and the rope winding shaft 31 is connected to two support plates 32 by bearings, and the two support plates 32 are connected to the upper bearing of the rotating seat 2. The plate 32 is vertically fixedly connected to the upper surface of the extension plate 16, one end of the rope 7 is wound around the rope shaft 31, and the other end of the rope 7 is supported at the front end of the boom 4 after passing through the guide roller 8. The outer side of the boom 3 is sleeved with a support slider 5, and the inner side of the support slider 5 and the outer side of the boom 3 are connected by a sliding connection. The lower end shaft of the support slider 5 is connected to the upper end of the telescopic cylinder 6, and the lower end of the telescopic cylinder 6 is connected to the extension plate 16 through a displacement adjustment mechanism. The guide roller 8 is provided on both the boom 3 and the boom 4, and a through hole is provided at the middle and rear end of the boom 3, and the rope 7 passes through the through hole provided on the boom 3.

[0019] The displacement adjustment mechanism includes a screw 17, a mounting frame 18, a universal caster 19, a limit plate 20, a limit rod 21, a spring 22, an air collecting bin 23 and a strip hole 24. The strip hole 24 is arranged at the front end of the extension plate 16, and the strip hole 24 is penetrated by the mounting frame 18. The lower surface of the mounting frame 18 is installed with a universal caster 19, and the mounting frame 18 is provided with an air collecting bin 23. The lower end of the telescopic cylinder 6 is connected to the air collecting bin 23, and the middle part of the telescopic cylinder 6 is fixedly connected to the limit plate 20. The upper surface of the mounting frame 18 is fixedly connected to the lower end of the limit rod 21, and the upper end of the limit rod 21 is movably penetrated to the top of the limit plate 20. A spring 22 nested in the outer side of the limit rod 21 is arranged between the mounting frame 18 and the limit plate 20. The middle thread of the mounting frame 18 is penetrated by the screw 17, and the screw One end bearing of 17 is connected to the strip hole 24, and the other end bearing of the screw rod 17 passes through the front outer side of the extension plate 16, the axis of the strip hole 24 is colinear with the axis of the screw rod 17, and the end of the screw rod 17 extending out of the front outer side of the extension plate 16 is installed with a rocker, the limit rod 21 is a T-shaped structure, and the two limit rods 21 are symmetrically arranged about the axis of the telescopic cylinder 6, by rotating the screw rod 17, the position of the mounting frame 18 on the extension plate 16 is adjusted, and in the process of moving the position of the mounting frame 18, the telescopic cylinder 6 adaptively adjusts its length, and in the process of moving the position of the mounting frame 18, the support slider 5 will also slide on the boom 3, thereby adjusting the position of the telescopic cylinder 6 supported on the boom 3, that is, adjusting the lifting position of the boom 3, so as to change the lifting range of the crane.

[0020] Embodiment 2:

[0021] In order to solve the problem that hydrographic ship cranes in the past could not limit the rope winding structure, which easily led to safety accidents, the following technical solution is provided. Specifically, the support frame 11 is connected to the rear end of the boom 3 through a limiting mechanism, and the displacement adjustment mechanism and the rope winding shaft 31 are both connected to the limiting mechanism.

[0022] The limiting mechanism includes an air collecting pipe 12, an air delivery pipe 13, a fixed clamp 14, a piston rod 15, an installation groove 25, a positioning rod 26, a pressure rod 27, a spring 28, a ratchet plate 29 and a ratchet wheel 30. The upper end of the support frame 11 is fixedly installed with the air collecting pipe 12, and the air collecting pipe 12 is connected with the air collecting bin 23 through the air delivery pipe 13. The air delivery pipe 13 is fixed to the side of the rotating seat 2 through the fixed clamp 14. The upper end of the piston rod 15 is seamlessly slidably connected in the air collecting pipe 12, and the lower end of the piston rod 15 is movable to penetrate to the bottom of the support frame 11. The lower end of the piston rod 15 is fixedly connected to the pressure rod 27, and the rear end of the lifting arm 3 is penetrated. The support frame 11 is provided with a mounting groove 25 on one side of the support frame 11 facing the rotating seat 2, and a positioning rod 26 is installed in the mounting groove 25. The two positioning rods 26 are connected by a pressure rod 27, and the pressure rod 27 is arranged above the rear end of the lifting arm 3. A ratchet plate 29 is movably penetrated on each positioning rod 26, and the upper ends of the two ratchet plates 29 are respectively fixedly connected to the two ends of the pressure rod 27, and the two ends of the pressure rod 27 are also movably penetrated by the positioning rod 26. A spring 28 nested in the outer side of the positioning rod 26 is arranged between the upper end of the pressure rod 27 and the inner top end of the mounting groove 25, and the side of the ratchet plate 29 is meshed and connected with The ratchet wheel 30 is key-connected to the rope winding shaft 31. When the telescopic cylinder 6 is extended to make the rope 7 lift the weight, the gravity of the weight will be applied to the boom 3 and the arm 4, so that the telescopic cylinder 6 is affected by the gravity of the boom 3, the arm 4 and the weight, so that the telescopic cylinder 6 moves downward. In the process of the telescopic cylinder 6 moving downward, the lower end of the telescopic cylinder 6 squeezes the gas in the gas collecting bin 23, and then increases the gas pressure in the gas collecting pipe 12 through the gas transmission pipe 13, so that the piston rod 15 drives the pressure rod 27 to synchronously press down the boom 3, and the ratchet plate 29 will also move downward synchronously until the ratchet plate 29 and the ratchet wheel 30 are meshed and connected. At this time Since the ratchet plate 29 cannot move upward, the rope winding shaft 31 can only wind the rope 7 under the action of the ratchet plate 29 and the ratchet wheel 30, thereby limiting the rope winding shaft 31 to prevent the rope 7 from being released during the lifting process and causing a safety accident. A piston plate is provided at the lower end of the telescopic cylinder 6, and the piston plate at the lower end of the telescopic cylinder 6 is seamlessly slidably connected with the air collecting bin 23. The pressure rod 27 is an I-shaped structure, and the pressure rod 27 is arranged directly below the piston rod 15. One end of the gas supply pipe 13 is arranged at a position close to the top end of the gas collecting pipe 12, and the other end of the gas supply pipe 13 is arranged at a position close to the bottom end of the gas collecting bin 23.

[0023] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting type hydrographic ship crane, comprising a support seat (1), a displacement adjustment mechanism and a limit mechanism, characterized in that: The support seat (1) is connected to a rotating seat (2) through a bearing on the upper part, and the middle and lower parts of the rotating seat (2) are fixedly connected to an extension plate (16). The upper end shaft of the rotating seat (2) is connected to a lifting arm (3), and the front end of the lifting arm (3) is equipped with a boom (4). The rear end of the extension plate (16) is fixedly and vertically equipped with a supporting frame (11), and a servo motor (9) is installed on the extension plate (16) between the supporting frame (11) and the rotating seat (2). The shaft end of the servo motor (9) is connected to one end of a rope winding shaft (31) through a belt transmission group (10), and the rope winding shaft (31) is connected to two supporting plates (32) through a bearing. The two supporting plates (32) are vertically and fixedly connected to the extension plate (16). The upper surface of the extension plate (16), one end of the rope (7) is wound around the rope winding shaft (31), and the other end of the rope (7) is supported at the front end of the boom (4) after passing through the guide roller (8), the outer side of the boom (3) is sleeved with a support slider (5), and the inner side of the support slider (5) and the outer side of the boom (3) are connected in a sliding connection manner, the lower end of the support slider (5) is axially connected to the upper end of the telescopic cylinder (6), and the lower end of the telescopic cylinder (6) is connected to the extension plate (16) through a displacement adjustment mechanism, the support frame (11) is connected to the rear end of the boom (3) through a limiting mechanism, and the displacement adjustment mechanism and the rope winding shaft (31) are both connected to the limiting mechanism.

2. A lifting type hydrographic ship crane according to claim 1, characterized in that: The guide roller (8) is arranged on both the boom (3) and the suspension arm (4), and a through hole is arranged at the middle and rear ends of the boom (3), and the rope (7) passes through the through hole arranged on the boom (3).

3. A lifting type hydrographic ship crane according to claim 2, characterized in that: The displacement adjustment mechanism comprises a screw rod (17), a mounting frame (18), a universal caster (19), a limit plate (20), a limit rod (21), a spring (22), an air collecting bin (23) and a strip hole (24); the strip hole (24) is arranged at the front end of the extension plate (16), and the mounting frame (18) passes through the strip hole (24); the universal caster (19) is installed on the lower surface of the mounting frame (18), and the mounting frame (18) is provided with an air collecting bin (23); the lower end of the telescopic cylinder (6) is connected to the air collecting bin (23), and the telescopic cylinder (6) ) is fixedly connected to a limit plate (20) in the middle part, the upper surface of the mounting frame (18) is fixedly connected to the lower end of the limit rod (21), and the upper end of the limit rod (21) is movably extended to the top of the limit plate (20), a spring (22) is provided between the mounting frame (18) and the limit plate (20) and is nested in the outer side of the limit rod (21), a screw rod (17) is threadedly extended through the middle part of the mounting frame (18), one end of the screw rod (17) is bearing-connected to the strip hole (24), and the other end of the screw rod (17) is bearing-extended to the outer side of the front end of the extension plate (16).

4. The lifting type hydrographic ship crane according to claim 3 is characterized in that: The axis of the strip-shaped hole (24) is colinear with the axis of the screw rod (17), and a rocker is installed at the end of the screw rod (17) extending out of the front end outside of the extension plate (16).

5. The lifting type hydrographic ship crane according to claim 4, characterized in that: The limiting rod (21) is a T-shaped structure, and the two limiting rods (21) are symmetrically arranged about the axis of the telescopic cylinder (6).

6. The lifting type hydrographic ship crane according to claim 5, characterized in that: The limiting mechanism comprises an air collecting pipe (12), an air delivery pipe (13), a fixed clamp (14), a piston rod (15), an installation groove (25), a positioning rod (26), a pressure rod (27), a second spring (28), a ratchet plate (29) and a ratchet wheel (30); the air collecting pipe (12) is fixedly installed on the upper end of the support frame (11), and the air collecting pipe (12) is connected to the air collecting bin (23) through the air delivery pipe (13); the air delivery pipe (13) is fixed to the side of the rotating seat (2) through the fixed clamp (14); the upper end of the piston rod (15) is seamlessly slidably connected in the air collecting pipe (12), and the lower end of the piston rod (15) is movably penetrated to the bottom of the support frame (11); the lower end of the piston rod (15) is fixedly connected to the pressure rod (27); the rear end of the lifting arm (3) penetrates the support frame (11) and is provided with a plurality of holes. The support frame (11) is provided with a mounting groove (25) on one side facing the rotating seat (2), and a positioning rod (26) is installed in the mounting groove (25), two positioning rods (26) are connected by a pressure rod (27), and the pressure rod (27) is arranged above the rear end of the lifting arm (3), each positioning rod (26) is movably penetrated by a ratchet plate (29), and the upper ends of the two ratchet plates (29) are respectively fixedly connected to the two ends of the pressure rod (27), and the two ends of the pressure rod (27) are also movably penetrated by the positioning rod (26), a spring (28) is arranged between the upper end of the pressure rod (27) and the inner top end of the mounting groove (25) and is nested in the outer side of the positioning rod (26), and the side of the ratchet plate (29) is meshedly connected with a ratchet wheel (30), and the ratchet wheel (30) is key-connected to the rope winding shaft (31).

7. The lifting type hydrographic ship crane according to claim 6, characterized in that: A piston plate is provided at the lower end of the telescopic cylinder (6), and the piston plate at the lower end of the telescopic cylinder (6) is seamlessly slidably connected to the air collecting bin (23).

8. The lifting type hydrographic ship crane according to claim 7, characterized in that: The pressure rod (27) is an I-shaped structure, and the pressure rod (27) is arranged directly below the piston rod (15).

9. The lifting type hydrographic ship crane according to claim 8, characterized in that: One end of the gas delivery pipe (13) is arranged at a position close to the top end of the gas collecting pipe (12), and the other end of the gas delivery pipe (13) is arranged at a position close to the bottom end of the gas collecting bin (23).

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