An improved slewing platform for the crane of a floating crane vessel

Abstract

The present invention discloses an improved slewing platform of a floating crane ship crane, comprising: an auxiliary boarding ladder member, which includes an auxiliary boarding ladder frame and an automatic boarding ladder member. The auxiliary boarding ladder frame is arranged on the crane control room, and the automatic boarding ladder member is arranged on the auxiliary boarding ladder frame to improve the convenience for personnel to enter the crane control room through the auxiliary boarding ladder frame and the crane inclined ladder; a warning member, which includes a warning buffer member and an audible and visual alarm member. The warning buffer member is arranged on the auxiliary boarding ladder frame for buffering when colliding with personnel, and the audible and visual alarm member is arranged on the warning buffer member for giving an alarm when colliding with personnel; a follow-up anti-pinch member, which is used for rotating with the rotation of the crane control room when personnel are clamped by the rotation of the crane control room to prevent further injury to personnel. The structure of the present invention is simple, the deck occupation area is small, the load of the crane body is small, the safety factor is high, and the risk of personnel injury and the manufacturing cost are effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ship equipment, and more specifically, the present invention relates to an improved revolving platform of a floating crane on a floating crane ship. Background Art

[0002] On the floating crane ship, a floating crane that can rotate 360° is provided at the rear position in the middle of the main deck 22 for use in cargo barge transportation and the like. When personnel operate up and down, they need to first go from the main deck 22 to the revolving platform 2, and then enter the crane control room 1 from the revolving platform 2 through the crane inclined ladder 3.

[0003] The currently commonly used floating crane design is to increase the revolving platform 2 through lightweighting, and personnel enter the crane inclined body from between the outside of the crane inclined ladder 3 and the revolving platform 2 (such as Figure 1 ). This design requires a relatively large area of the revolving platform 2, occupying the usable area of the deck 22, increasing the load of the crane body, increasing the safety risk coefficient of the crane, and wasting materials and increasing the construction cost; and when the crane inclined ladder 3 rotates with the crane control room 1, it is easy to cause a collision accident when the personnel on the revolving platform 2 do not notice in time, resulting in crew casualties. Summary of the Invention

[0004] In order to overcome the above defects, the present invention provides an improved revolving platform of a floating crane on a floating crane ship, and specifically adopts the following technical solutions:

[0005] An improved revolving platform of a floating crane on a floating crane ship, comprising:

[0006] An auxiliary boarding ladder member, which is arranged on the crane control room and comprises an auxiliary boarding ladder frame and an automatic boarding ladder member. The auxiliary boarding ladder frame is arranged on the crane control room, and the automatic boarding ladder member is arranged on the auxiliary boarding ladder frame to improve the convenience for personnel to enter the crane control room through the auxiliary boarding ladder frame and the crane inclined ladder;

[0007] An early warning member, which is arranged on the auxiliary boarding ladder frame and comprises an early warning buffer member and an acoustic-optic alarm member. The early warning buffer member is arranged on the auxiliary boarding ladder frame and is used for buffering when colliding with personnel, and the acoustic-optic alarm member is arranged on the early warning buffer member and is used for giving an alarm when colliding with personnel;

[0008] A follow-up anti-pinch member, which is arranged on the revolving platform and is used for rotating with the rotation of the crane control room when personnel are clamped by the rotation of the crane control room to prevent further injury to personnel.

[0009] Preferably, one end of the auxiliary ladder is arranged on the bottom plate of the crane control room, the side of the other end of the auxiliary ladder is connected to the bottom end of the crane inclined ladder, the gap between the auxiliary ladder and the cylinder body supporting the crane control room is used for personnel to go up and down the crane inclined ladder, and the vertical gap from the other end of the auxiliary ladder to the slewing platform is used for personnel to squat down and take shelter in case of danger.

[0010] Preferably, the automatic ladder component includes a first motor, a first gear, a vertical moving rod and a pedal. The first motor is arranged on the other end face of the auxiliary ladder, the first gear is arranged on the rotating shaft of the first motor, the side of the vertical moving rod is provided with first teeth, one end of the vertical moving rod is embedded in the vertical pipe at the other end of the auxiliary ladder, and the first teeth are meshed with the first gear.

[0011] Preferably, the warning buffer component includes a right-angle buffer rod, an oblique-angle buffer rod and a buffer surface. The right-angle buffer rod and the oblique-angle buffer rod are both arranged on the auxiliary ladder, the buffer surface is arranged on the right-angle buffer rod and the oblique-angle buffer rod, and when the buffer surface collides with a person, it is buffered by the right-angle buffer rod and the oblique-angle buffer rod.

[0012] Preferably, the right-angle buffer rod includes a right-angle buffer pipe, a first spring and a right-angle buffer shaft. One end of the right-angle buffer pipe is arranged on the other side surface of the auxiliary ladder, the first spring is embedded in the right-angle buffer pipe, one end of the right-angle buffer shaft is embedded in the free end of the right-angle buffer pipe, and the right-angle buffer shaft moves axially in the right-angle buffer pipe to compress the first spring.

[0013] Preferably, the oblique-angle buffer rod includes an oblique-angle buffer pipe, a second spring and an oblique-angle buffer shaft. One end of the oblique-angle buffer pipe is arranged on the other side surface of the auxiliary ladder, and the oblique-angle buffer pipe forms an acute angle with the other side surface of the auxiliary ladder. The second spring is embedded in the oblique-angle buffer pipe, one end of the oblique-angle buffer shaft is embedded in the free end of the oblique-angle buffer pipe, so that the oblique-angle buffer shaft moves axially in the oblique-angle buffer pipe to compress the second spring; both sides of the buffer surface are hinged to the other end of the right-angle buffer shaft and the other end of the oblique-angle buffer shaft respectively.

[0014] Preferably, the sound and light alarm component includes a sound and light alarm and a pressure sensor. The sound and light alarm is arranged on the buffer surface, and the pressure sensor is arranged between the right-angle buffer shaft and the first spring.

[0015] Preferably, the follower anti-pinch component includes a follower plate, a torque locking component and a guardrail. The follower plate is in the shape of a circular ring plate. After the follower plate is sleeved on the cylinder, it is horizontally laid on the balls of the rotating platform. A plurality of the balls are evenly distributed and embedded on the upper surface of the rotating platform.

[0016] Preferably, the torque locking member includes a locking fixing frame, a torque sensor, a second gear and a locking power member, the locking fixing frame has a right-angled side arranged on the bottom surface of the rotating platform, one end of the torque sensor is arranged through another right-angled surface of the locking fixing frame, so that the torque sensor can rotate circumferentially on the locking fixing frame, and a locking groove is arranged on the side wall of one end of the torque sensor; the second gear is arranged on the other end of the torque sensor, and the second gear is meshed with the second teeth on the edge of the follower plate.

[0017] Preferably, the locking power component includes a locking tube, a magnetic coil and a locking shaft. The locking tube is arranged on a right-angle plane of the locking fixing frame, the magnetic coil is embedded in the locking tube, the locking shaft is embedded in the locking tube, and the axis of the locking shaft coincides with the axis of the locking groove.

[0018] The present invention has at least the following beneficial effects:

[0019] 1) The improved floating crane slewing platform of the present invention has a simple structure, a small deck area, a small load on the crane body, a high safety factor, and effectively reduces the risk of injury to personnel and manufacturing costs;

[0020] 2) The improved floating crane rotary platform of the present invention is provided with an auxiliary ladder member, which enables personnel to climb up to the crane control room from between the crane inclined ladder and the cylinder, and the automatic ladder member is designed to effectively improve the convenience and safety of personnel climbing the ladder, effectively reduce the occupation area of ​​the rotary platform on the deck, and effectively improve the deck utilization rate;

[0021] 3) The improved floating crane revolving platform of the present invention is provided with an early warning component and a follow-up anti-pinch component. The early warning component plays a role of buffering and sounding an alarm when the auxiliary ladder component touches a person, prompting the person to avoid it in time to prevent danger from occurring; when a person is unfortunately clamped between the auxiliary ladder component and the guardrail or between the auxiliary ladder component and the follow-up plate, it will rotate with the auxiliary ladder component to prevent the person from being further clamped.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1Schematic diagram of the prior art in the background art of the crane slewing platform of the improved floating crane ship of the present invention;

[0024] Figure 2 Schematic diagram of the personnel access ladder in the crane slewing platform of the improved floating crane ship of the present invention;

[0025] Figure 3 Top view of the crane slewing platform of the improved floating crane ship of the present invention with a crane control room;

[0026] Figure 4 For the crane slewing platform of the improved floating crane ship of the present invention Figure 3 Front view of the Y - Y direction section;

[0027] Figure 5 Schematic diagram of the elastic connection between the slewing platform and the cylinder in the crane slewing platform of the improved floating crane ship of the present invention;

[0028] Figure 6 Front view of the crane slewing platform of the improved floating crane ship of the present invention;

[0029] Figure 7 For the crane slewing platform of the improved floating crane ship of the present invention Figure 6 Partial enlarged view of A;

[0030] Figure 8 Top view of the crane slewing platform of the improved floating crane ship of the present invention;

[0031] Figure 9 Side front view of the crane slewing platform of the improved floating crane ship of the present invention;

[0032] Figure 10 Schematic diagram of the left - hand three - dimensional structure of the crane slewing platform of the improved floating crane ship of the present invention;

[0033] Figure 11 Schematic diagram of the right - hand three - dimensional structure of the crane slewing platform of the improved floating crane ship of the present invention.

[0034] Wherein: 1 - Crane control room, 2 - Slewing platform, 3 - Crane inclined ladder, 4 - Auxiliary access ladder frame, 5 - Cylinder, 6 - First motor, 8 - Vertical moving rod, 9 - Pedal, 10 - Right - angle buffer rod, 11 - Oblique - angle buffer rod, 12 - Buffer surface, 13 - Acoustic - optical alarm, 14 - Follow - up plate, 15 - Guardrail, 16 - Locking and fixing frame, 17 - Torque sensor, 18 - Second gear, 19 - Locking tube, 21 - Locking shaft, 22 - Deck. Detailed implementation manners

[0035] Hereinafter, the technical solutions of the present invention will be described in detail by way of examples with reference to the accompanying drawings. It should be noted here that the description of these example embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention.

[0036] In this text, the term "and / or" is merely a description of the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, B exists alone, and both A and B exist simultaneously. The term " / and" in this text describes another relationship between associated objects, indicating that there can be two relationships. For example, A / and B can represent: A exists alone, and both A and B exist. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0037] According to Figures 1-11 As shown, an improved slewing platform of a floating crane ship hoist includes an auxiliary boarding ladder component, a warning component, and a follow-up anti-pinch component. The auxiliary boarding ladder component is arranged on the hoist control room 1, the warning component is arranged on the auxiliary boarding ladder component, and the follow-up anti-pinch component is arranged on the slewing platform 2. The auxiliary boarding ladder component includes an auxiliary boarding ladder frame 4 and an automatic boarding ladder component. The auxiliary boarding ladder frame 4 is arranged on the hoist control room 1, and the automatic boarding ladder component is arranged on the auxiliary boarding ladder frame 4. The auxiliary boarding ladder frame 4 is in the shape of a rectangular frame. One end of the auxiliary boarding ladder frame 4 is vertically and fixedly arranged on the bottom plate of the hoist control room 1, and the other end side of the auxiliary boarding ladder frame 4 is fixedly connected to the bottom end of the crane inclined ladder 3, so that the gap between the auxiliary boarding ladder frame 4 and the cylinder 5 supporting the hoist control room 1 is not less than 500 mm, and the gap from the bottom end of the auxiliary boarding ladder frame 4 to the slewing platform 2 is not less than 600 mm, for personnel to squat down and take shelter in case of danger (such as Figure 2 ).

[0038] The automatic boarding ladder component includes a first motor 6, a first gear, a vertical moving rod 8, and a pedal 9. The first motor 6 is arranged on the other end face of the auxiliary boarding ladder frame 4, the first gear is arranged on the rotating shaft of the first motor 6, the first tooth teeth are arranged on one side surface of the vertical moving rod 8, one end of the vertical moving rod 8 is embedded in the vertical pipe at the other end of the auxiliary boarding ladder frame 4, and the first tooth teeth are meshed with the first gear. The first motor 6 can drive the vertical moving rod 8 to move vertically on the auxiliary boarding ladder frame 4 through the first gear. The pedal 9 is horizontally and fixedly arranged on the free end of the vertical moving rod 8. When personnel reach the boarding position, the pedal 9 is lowered to a predetermined position by controlling the first motor 6, and then the personnel on the pedal 9 are lifted to the other end of the auxiliary boarding ladder frame 4 by controlling the first motor 6 when the personnel step on the pedal 9. After the personnel enter the other end face of the auxiliary boarding ladder frame 4, they then enter the hoist control room 1 through the crane inclined ladder 3. The automatic boarding ladder component can improve the convenience and safety of personnel entering the crane inclined ladder 3.

[0039] The warning component includes a warning buffer component and an audible and visual alarm component. The warning buffer component is arranged on the auxiliary ladder frame 4, and the audible and visual alarm component is arranged on the warning buffer component. The warning buffer component includes a right-angle buffer rod 10, an oblique buffer rod 11 and a buffer surface 12. The right-angle buffer rod 10 and the oblique buffer rod 11 are both arranged on the auxiliary ladder frame 4, and the buffer surface 12 is arranged on the right-angle buffer rod 10 and the oblique buffer rod 11. The right-angle buffer rod 10 includes a right-angle buffer tube, a first spring and a right-angle buffer shaft. One end of the right-angle buffer tube is vertically fixed on the other side of the auxiliary ladder frame 4, the first spring is embedded in the right-angle buffer tube, and one end of the right-angle buffer shaft is embedded in the free end of the right-angle buffer tube, so that the right-angle buffer shaft can move in the right-angle buffer tube by axially compressing the first spring.

[0040] The angled buffer rod 11 includes an angled buffer tube, a second spring and an angled buffer shaft. One end of the angled buffer tube is fixedly arranged on the other side of the auxiliary ladder frame 4, and the angled buffer tube and the other side of the auxiliary ladder frame 4 are distributed at an acute angle. The second spring is embedded in the angled buffer tube, and one end of the angled buffer shaft is embedded in the free end of the angled buffer tube, so that the angled buffer shaft can move in the angled buffer tube by axially compressing the second spring. The buffer surface 12 is in the shape of an arc surface, and the two side edges of the buffer surface 12 are respectively hinged to the other end of the right-angle buffer shaft and the other end of the angled buffer shaft. Furthermore, a rubber pad is provided on the buffer surface 12 to further reduce the contact force between the buffer surface 12 and the personnel. Furthermore, the inclined surface formed by the angled buffer rod 11 faces the cylinder 5.

[0041] When the crane control room 1 drives the warning component to rotate and collide with a person through the auxiliary ladder frame 4, the angled buffer rod 11 will guide the person into the space between the auxiliary ladder frame 4 and the cylinder 5 to prevent the person from being trapped between the auxiliary ladder frame 4 and the guardrail 15.

[0042] The sound and light alarm component includes a sound and light alarm 13 and a pressure sensor. The sound and light alarm 13 is arranged on the buffer surface 12, and the pressure sensor is arranged between the right-angle buffer shaft and the first spring. When the crane control room 1 drives the warning component to touch a person through the auxiliary ladder rack 4, the right-angle buffer shaft will squeeze the pressure sensor, and the pressure sensor will activate the sound and light alarm 13 to warn the person.

[0043] The follower anti-pinch component includes a follower plate 14, a torque locking component, and a guardrail 15. The follower plate 14 and the torque locking component are both arranged on the slewing platform 2, and the guardrail 15 is arranged on the follower plate 14. The follower plate 14 is in the shape of an annular plate. After the follower plate 14 is sleeved on the cylinder body 5, it is horizontally laid on the balls of the slewing platform 2. A plurality of the balls are evenly distributed and embedded on the upper surface of the slewing platform 2, and the balls can rotate on the slewing platform 2. So that the follower plate 14 can circumferentially rotate around the cylinder body 5 on the slewing platform 2 through the balls.

[0044] The torque locking component includes a locking fixed frame 16, a torque sensor 17, a second gear 18, and a locking power component. The locking fixed frame 16 is arranged on the slewing platform 2. The torque transmitter and the locking power component are both arranged on the locking fixed frame 16, and the second gear 18 is arranged on the torque sensor 17. The locking fixed frame 16 is in the shape of a right-angle plate. One right-angle side of the locking fixed frame 16 is vertically and fixedly arranged on the bottom surface of the slewing platform 2. One end of the torque sensor 17 penetrates through and is arranged on the other right-angle surface of the locking fixed frame 16, so that the torque sensor 17 can circumferentially rotate on the locking fixed frame 16. A locking groove is arranged on the side wall of one end of the torque sensor 17. Further, the torque sensor 17 is a static torque sensor. The second gear 18 is fixedly arranged on the other end of the torque sensor 17, and the second gear 18 meshes with the second teeth on the edge of the follower plate 14.

[0045] The locking power component includes a locking tube 19, a magnetic coil, and a locking shaft 21. The locking tube 19 is horizontally and penetratingly arranged on one right-angle surface of the locking fixed frame 16. The magnetic coil is embedded in the locking tube 19. Further, a spiral groove is arranged in the locking tube 19, and the magnetic coil is embedded in the spiral groove. The locking shaft 21 is embedded in the locking tube 19. When a positive direct current is passed through the magnetic coil to generate a magnetic field, the locking shaft 21 will be pushed to move and insert into the locking groove, thereby restricting the circumferential rotation of the torque sensor 17 on the locking fixed frame 16. The torque sensor 17 restricts the circumferential rotation of the follower plate 14 through the second gear 18. When a reverse direct current is passed through the magnetic coil to generate a magnetic field, the locking shaft 21 will be pushed to pull out from the locking groove, so as to facilitate the circumferential rotation of the follower plate 14. The guardrail 15 is arranged circumferentially around the follower plate 14.

[0046] When the crane control room 1 drives the auxiliary ladder frame 4 to rotate and accidentally rolls a person between the auxiliary ladder frame 4 and the guardrail 15, the crane control room 1 applies a circumferential extrusion force to the follower plate 14 and the guardrail 15. When the follower plate 14 applies a torque to the torque sensor 17 through the second gear 18 to reach a predetermined value, a reverse direct current is passed through the magnetic coil to pull the locking shaft 21 out of the locking groove, so that the follower plate 14 rotates with the crane control room 1 to prevent people from being squeezed and injured.

[0047] As described above, the improved floating crane revolving platform of the present invention is provided with an auxiliary climbing member, and the auxiliary climbing member enables personnel to climb up to the crane control room from between the crane inclined ladder and the cylinder, and the convenience and safety of personnel climbing the ladder are effectively improved by designing an automatic climbing member, effectively reducing the occupied area of ​​the revolving platform on the deck, and effectively improving the deck utilization rate; at the same time, the present invention is provided with an early warning member and a follow-up anti-pinch member, and the early warning member plays a role of buffering and sounding an alarm when the auxiliary climbing member touches a person, prompting the person to avoid it in time to prevent the occurrence of danger; when a person is unfortunately clamped between the auxiliary climbing member and the guardrail or between the auxiliary climbing member and the follow-up plate, it will rotate with the rotation of the auxiliary climbing member to prevent the person from being further pinched.

[0048] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An improved slewing platform of a floating crane ship's crane, characterized in that, Comprising: An auxiliary ladder climbing member, which is arranged in the crane control room. The auxiliary ladder climbing member includes an auxiliary ladder climbing frame and an automatic ladder climbing member. The auxiliary ladder climbing frame is connected below the crane control room, and the automatic ladder climbing member is arranged on the auxiliary ladder climbing frame; An early warning member, which is arranged on the auxiliary ladder climbing frame. The early warning member includes an early warning buffer member and an acoustic-optical alarm member. The early warning buffer member is arranged on the auxiliary ladder climbing frame, and the acoustic-optical alarm member is arranged on the early warning buffer member; A follow-up anti-pinch member, which is arranged on the slewing platform. The follow-up anti-pinch member is used for rotating with the rotation of the crane control room when a person is clamped by the rotation of the crane control room; One end of the auxiliary ladder climbing frame is arranged on the bottom plate of the crane control room, and the other end side of the auxiliary ladder climbing frame is connected to the bottom end of the crane inclined ladder. The gap between the auxiliary ladder climbing frame and the cylinder supporting the crane control room is used for personnel to go up and down the crane inclined ladder, and the vertical gap from the other end of the auxiliary ladder climbing frame to the slewing platform is used for personnel to squat down to avoid danger; The automatic ladder climbing member includes a first motor, a first gear, a vertical moving rod and a pedal. The first motor is arranged on the other end face of the auxiliary ladder climbing frame, the first gear is arranged on the rotating shaft of the first motor, the side of the vertical moving rod is provided with first teeth, one end of the vertical moving rod is embedded in the vertical pipe at the other end of the auxiliary ladder climbing frame, and the first teeth are meshed with the first gear; The follow-up anti-pinch member includes a follow-up plate, a torque locking member and a guardrail. The follow-up plate is in the shape of an annular plate. After the follow-up plate is sleeved on the cylinder, it is horizontally laid on the balls on the slewing platform, and a plurality of the balls are evenly distributed and embedded on the upper surface of the slewing platform; The torque locking member includes a locking fixed frame, a torque sensor, a second gear and a locking power member. One right-angled side of the locking fixed frame is arranged on the bottom surface of the slewing platform, one end of the torque sensor penetrates through and is arranged on the other right-angled surface of the locking fixed frame, so that the torque sensor can rotate circumferentially on the locking fixed frame, and a locking groove is arranged on the side wall of one end of the torque sensor; The second gear is arranged on the other end of the torque sensor, and the second gear is meshed with the second teeth on the edge of the follow-up plate; The locking power member includes a locking tube, a magnetic coil and a locking shaft. The locking tube is penetrated and arranged on one right-angled surface of the locking fixed frame, the magnetic coil is embedded in the locking tube, the locking shaft is embedded in the locking tube, and the axis of the locking shaft coincides with the axis of the locking groove.

2. The improved floating crane slewing platform according to claim 1, characterized in that, The early warning buffer member includes a right-angled buffer rod, an oblique-angled buffer rod and a buffer surface. The right-angled buffer rod and the oblique-angled buffer rod are both arranged on the auxiliary ladder climbing frame, the buffer surface is arranged on the right-angled buffer rod and the oblique-angled buffer rod, and when the buffer surface collides with a person, it is buffered by the right-angled buffer rod and the oblique-angled buffer rod.

3. The improved floating crane slewing platform according to claim 2, characterized in that, The right-angle buffer rod includes a right-angle buffer tube, a first spring, and a right-angle buffer shaft. One end of the right-angle buffer tube is arranged on the other side surface of the auxiliary ladder climbing frame. The first spring is embedded in the right-angle buffer tube. One end of the right-angle buffer shaft is embedded in the free end of the right-angle buffer tube. The right-angle buffer shaft moves axially in the right-angle buffer tube to compress the first spring.

4. The improved floating crane's slewing platform according to claim 3, characterized in that, The bevel-angle buffer rod includes a bevel-angle buffer tube, a second spring, and a bevel-angle buffer shaft. One end of the bevel-angle buffer tube is arranged on the other side surface of the auxiliary ladder climbing frame, and the bevel-angle buffer tube forms an acute angle with the other side surface of the auxiliary ladder climbing frame. The second spring is embedded in the bevel-angle buffer tube. One end of the bevel-angle buffer shaft is embedded in the free end of the bevel-angle buffer tube, so that the bevel-angle buffer shaft moves axially in the bevel-angle buffer tube to compress the second spring. Both sides of the buffer surface are respectively hinged to the other ends of the right-angle buffer shaft and the bevel-angle buffer shaft.

5. The improved floating crane slewing platform according to claim 3, characterized in that, The sound and light alarm component includes a sound and light alarm and a pressure sensor. The sound and light alarm is arranged on the buffer surface, and the pressure sensor is arranged between the right-angle buffer shaft and the first spring.

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