Wave compensation winch for stabilizing trestle

Abstract

The invention relates to the technical field of wave compensation winch production, in particular to a wave compensation winch for stabilizing a trestle, which comprises a lower base and an upper platform, the upper platform is arranged on the upper side of the lower base, a trestle main body is arranged on the upper side of the upper platform, the lower base and the upper platform are arranged in a cross shape, and the trestle main body is arranged on the lower base. The width of the lower base is twice that of the upper platform, first limiting rotating seats which are symmetrically arranged in pairs are arranged on the periphery of the upper end of the lower base, second limiting rotating seats are rotationally installed on the periphery of the upper platform, and hydraulic push rods are rotationally installed between the first limiting rotating seats and the second limiting rotating seats on the upper and lower adjacent sides; the hydraulic push rods are obliquely arranged, and limiting rotating rods rotationally matched with the limiting rotating holes are fixedly installed on the inner sides of the limiting rotating holes. When the trestle body floats along with waves, it can be guaranteed that the trestle body is in a horizontal state all the time through the hydraulic push rods on the periphery of the device, and therefore it is guaranteed that the trestle body operates stably.

Description

Technical Field

[0001] The invention relates to the technical field of wave compensation winch production, in particular to a wave compensation winch used for stabilizing a pier. Background Art

[0002] When operating marine operating equipment such as ship cranes, underwater robots, and deep-sea exploration equipment, in order to reduce or avoid the impact of natural factors such as wind, waves, and currents on the operation of marine cranes and improve the safety and efficiency of marine operations, it is necessary to install a wave compensation winch on the hull to perform random compensation on the upper pier. When the pier moves with the waves, it can be ensured that the pier is always in a horizontal state. Existing wave compensation winches usually adopt a six-degree-of-freedom compensation method. Although this method can improve the compensation effect of the pier, it requires the installation of six sets of hydraulic push rods and other equipment, which will obviously increase the equipment cost and increase the difficulty of equipment operation. For this reason, we propose a wave compensation winch for stabilizing the pier. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a wave compensation winch for stabilizing a pier.

[0004] The present invention adopts the following technical scheme: a wave compensating winch for stabilizing a pier, comprising a lower base and an upper platform, wherein the upper platform is arranged on the upper side of the lower base, a pier body is arranged on the upper side of the upper platform, the lower base and the upper platform are arranged in a cross shape, and the width of the lower base is twice the width of the upper platform, first limit rotating seats arranged symmetrically in pairs are arranged on the periphery of the upper end of the lower base, a second limit rotating seat is rotatably installed on the periphery of the upper platform, a hydraulic push rod is rotatably installed between the first limit rotating seat and the second limit rotating seat on the upper and lower adjacent sides, and each of the hydraulic push rods is arranged at an incline.

[0005] As a further description of the above technical solution: the upper platform is provided with limited rotation holes on its periphery, and each limited rotation hole has a limited rotation rod fixedly installed on its inner side to rotate with the limited rotation hole.

[0006] As a further description of the above technical solution: the first driven gear and the second driven gear are rotatably installed on the upper end surface of the lower base and the middle of the lower end surface of the upper platform respectively, a first active rack meshing with the first driven gear is fixedly installed between the two sides of the lower end surface of the upper platform, and a second active rack meshing with the second driven gear is fixedly installed between the two sides of the upper end surface of the lower base.

[0007] As a further description of the above technical solution: the upper end surface of the lower base and the lower end surface of the upper platform are respectively fixedly installed with limit ear plates symmetrically arranged in pairs, and the second driven gear and the first driven gear are respectively rotatably installed between the two upper and two lower limit ear plates.

[0008] As a further description of the above technical solution: a limited rotation cavity is opened on the inner side of the limit ear plate, and the outer ends of the second driven gear and the first driven gear are fixedly installed with a limit rotation block that rotates with the limit rotation cavity, and the inner wall of the limit rotation cavity is provided with a plurality of positioning slots that match each other at equal intervals, and a positioning plug-in block that is inserted into the positioning slot is slidably installed on the outer periphery of the limit rotation block.

[0009] As a further description of the above technical solution: a cavity is opened in the limit rotating block, a through hole matching the positioning block is opened on the periphery of the cavity, a connecting seat is fixedly installed in the cavity, the positioning block is plugged and installed on the periphery of the connecting seat, and a limit clamping plate that is clamped with the inner side of the through hole is fixedly installed on the periphery of the positioning block.

[0010] As a further description of the above technical solution: a tension spring and a telescopic sleeve that are plugged into each other are fixedly installed between the positioning plug block and the connecting seat, and the tension spring is arranged in the telescopic sleeve.

[0011] As a further description of the above technical solution: a limited rotation groove is provided on the upper end surface of the upper platform, and a worm gear disc rotatably matched with the limited rotation groove is fixedly installed on the lower end surface of the trestle body, and a fixed seat fixedly connected to the upper end of the upper platform is provided on the periphery of the worm gear disc, and a worm screw which cooperates with the worm gear screw thread is rotatably installed on the inner side of the fixed seat, and a drive motor is fixedly installed on the periphery of the fixed seat, and the output shaft at the outer end of the drive motor is rotatably connected to the worm gear shaft through a transmission belt.

[0012] The present invention provides a wave compensation winch for stabilizing a pier through improvement, which has the following improvements and advantages compared with the prior art: First, the present invention can compensate for the longitudinal swing of the pier body through the front and rear hydraulic push rods, and can compensate for the left and right lateral swing of the pier body through the left and right hydraulic push rods. Through the rotational coordination between the upper platform and the first limit rotating seat, the movement direction of the upper platform can be restricted when the hydraulic push rods on both sides move to avoid the upper platform from deflecting. While ensuring the compensation effect of the device, the stability of the upper platform is improved. Compared with the existing six-degree-of-freedom compensation method, the present invention reduces equipment costs, has a simple principle, and facilitates operating efficiency.

[0013] Secondly, the present invention arranges an active rack and a driven gear, and arranges a positioning slot and a positioning block between the driven gear and the limiting ear plate. When the hydraulic push rod is damaged or other reasons cause the upper platform to rotate rapidly, the rotating driven gear can centrifugally throw the positioning block until it is plugged into the positioning slot, thereby locking the driven gear, thereby achieving the effect of positioning the upper platform, avoiding the upper platform from tipping over, and reducing the safety hazards of the equipment.

[0014] Thirdly, the present invention uses the threaded cooperation between the worm and the worm wheel to enable the driving motor to drive the pier body to rotate, thereby adjusting the movement direction of the winch lifting cable and locking the pier body to prevent the pier body from shifting left and right due to sea waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 A schematic diagram of the overall external structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the external structure of the lower base and the upper platform provided in an embodiment of the present invention; Figure 3 A schematic diagram of the external split structure of the lower base and the upper platform provided in an embodiment of the present invention; Figure 4 A schematic diagram of the external structure of the driving rack and the driven gear provided in an embodiment of the present invention; Figure 5 A schematic diagram of the internal disassembly structure of the first driven gear provided by an embodiment of the present invention; Figure 6 A schematic diagram of the internal split structure of the positioning plug provided in an embodiment of the present invention; Figure 7 A schematic diagram of the external structure of a worm gear provided in an embodiment of the present invention.

[0016] In the figure: 1. Lower base; 11. Upper platform; 12. Main body of the trestle; 2. First limit rotation seat; 21. Second limit rotation seat; 22. Limit rotation hole; 23. Limit rotation rod; 24. Hydraulic push rod; 3. First driven gear; 301. Second driven gear; 31. First active rack; 311. Second active rack; 32. Position-limiting ear plate; 33. Position-limiting rotating cavity; 34. Position-limiting rotating block; 35. Cavity; 36. Positioning plug block; 361. Through hole; 362. Positioning slot; 363. Position-limiting card plate; 37. Connecting seat; 371. Telescopic sleeve; 372. Tension spring; 4. Fixed seat; 41. Worm wheel; 411. Position limiting rotation groove; 42. Worm; 43. Driving motor. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0018] See also Figure 1 - Figure 7 The embodiment of the present invention provides a technical solution: a wave compensation winch for stabilizing a pier, comprising a lower base 1 and an upper platform 11, wherein the upper platform 11 is arranged on the upper side of the lower base 1, and a pier body 12 is arranged on the upper side of the upper platform 11, the lower base 1 and the upper platform 11 are arranged in a cross shape, and the width of the lower base 1 is twice the width of the upper platform 11, and first limit rotating seats 2 symmetrically arranged in pairs are arranged on the outer periphery of the upper end of the lower base 1, and a second limit rotating seat 21 is rotatably installed on the outer periphery of the upper platform 11, and a hydraulic push rod 24 is rotatably installed between the first limit rotating seat 2 and the second limit rotating seat 21 on the upper and lower adjacent sides, and each hydraulic push rod 24 is arranged at an angle.

[0019] Specifically, the front and rear hydraulic push rods 24 can be used to compensate for the longitudinal swing of the trestle body 12 , and the left and right lateral swing of the trestle body 12 can be compensated by the left and right hydraulic push rods 24 .

[0020] In another embodiment provided by the present invention, the upper platform 11 is provided with limited rotation holes 22 on its periphery, and each limited rotation hole 22 has a limited rotation rod 23 fixedly mounted inside thereof to rotate with the limited rotation hole 22 .

[0021] Specifically, by the rotational cooperation between the limit rotation rod 23 and the limit rotation hole 22, the movement direction of the upper platform 11 can be limited on the upper side of the lower base 1, and the upper platform 11 can be prevented from deflecting when the hydraulic push rods 24 on both sides move.

[0022] In another embodiment provided by the present invention, a first driven gear 3 and a second driven gear 301 are rotatably installed on the upper end surface of the lower base 1 and the middle of the lower end surface of the upper platform 11, respectively; a first active rack 31 meshing with the first driven gear 3 is fixedly installed between the two sides of the lower end surface of the upper platform 11; a second active rack 311 meshing with the second driven gear 301 is fixedly installed between the two sides of the upper end surface of the lower base 1; limiting ear plates 32 symmetrically arranged in pairs are fixedly installed on the upper end surface of the lower base 1 and the lower end surface of the upper platform 11, respectively; the second driven gear 301 and the first driven gear 3 are rotatably installed between the two upper and two lower limiting ear plates 32, and a limited rotation cavity 33 is provided on the inner side of the limiting ear plate 32; the outer ends of the second driven gear 301 and the first driven gear 3 A limit rotation block 34 is fixedly installed to rotate with the limit rotation cavity 33, and a plurality of mutually matching positioning slots 362 are provided at equal intervals on the inner wall of the limit rotation cavity 33. A positioning block 36 plugged into the positioning slot 362 is slidably installed on the periphery of the limit rotation block 34. A cavity 35 is provided in the limit rotation block 34, and a through hole 361 matching the positioning block 36 is provided on the periphery of the cavity 35. A connecting seat 37 is fixedly installed in the cavity 35. The positioning block 36 is plugged and installed on the periphery of the connecting seat 37, and a limit clamping plate 363 clamped with the inner side of the through hole 361 is fixedly installed on the periphery of the positioning block 36. A tension spring 372 and a telescopic sleeve 371 plugged into each other are fixedly installed between the positioning block 36 and the connecting seat 37, and the tension spring 372 is arranged in the telescopic sleeve 371.

[0023] Specifically, when the hydraulic push rod 24 is damaged, causing the upper platform 11 to rotate rapidly, the moving upper platform 11 drives the first driven gear 3 and the second driven gear 301 to be quickly selected through the first active rack 31 and the second active rack 311, thereby driving the positioning block 36 to be centrifugally thrown outward, so that the positioning block 36 is plugged into the positioning slot 362, so that the second driven gear 301 and the first driven gear 3 are plugged into the limiting ear plate 32, and then cooperate with the second active rack 311 engaged with the second driven gear 301, so as to achieve the effect of positioning the upper platform 11 at the upper end of the lower base 1, thereby preventing the upper platform 11 from tipping over.

[0024] In another embodiment provided by the present invention, a limited rotation groove 411 is provided on the upper end surface of the upper platform 11, and a worm gear 41 that rotatably cooperates with the limited rotation groove 411 is fixedly installed on the lower end surface of the pier body 12. A fixed seat 4 that is fixedly connected to the upper end of the upper platform 11 is provided on the periphery of the worm gear 41, and a worm 42 that threadably cooperates with the worm gear 41 is rotatably installed on the inner side of the fixed seat 4. A drive motor 43 is fixedly installed on the periphery of the fixed seat 4, and the output shaft at the outer end of the drive motor 43 is rotatably connected to the rotating shaft of the worm gear 42 through a transmission belt.

[0025] Specifically, through the threaded cooperation between the worm 42 and the worm wheel 41 , the driving motor 43 can drive the trestle body 12 to rotate, and can tighten the trestle body 12 to prevent the trestle body 12 from deflecting.

[0026] Working principle: When the trestle body 12 deviates with the movement of waves, the MRU sensor is used to start the front and rear hydraulic push rods 24 to drive the upper platform 11 to rotate forward and backward, and the longitudinal swing of the trestle body 12 can be compensated. The left and right hydraulic push rods 24 are started to drive the upper platform 11 to rotate left and right, and the left and right lateral swing of the trestle body 12 can be compensated, thereby ensuring the trestle body 12. When the hydraulic push rods 24 move, the movement direction of the upper platform 11 can be limited by the rotation cooperation between the limit rotation rod 23 and the limit rotation hole 22, so as to avoid the upper platform 11 from deviating. When the hydraulic push rod 24 on one side is damaged, causing the upper platform 11 to deviate and rotate rapidly, the rotating upper platform 11 drives the first driven gear 3 and the second driven gear 301 to rotate rapidly through the meshing effect between the first active rack 31 and the first driven gear 3 and between the second active rack 311 and the second driven gear 301, and the rotation cooperation between the limit rotation block 34 and the limit rotation cavity 33, thereby driving the positioning plug block 36 to be thrown outward in the through hole 361, so that the positioning plug block 36 and the positioning slot 362 are plugged into each other, and then the limit rotation block 34 and the limit rotation cavity 33 are locked with each other, and then the meshing effect between the first active rack 31 and the first driven gear 3 and between the second active rack 311 and the second driven gear 301 can be used to position the upper platform 11 at the upper end of the lower base 1; After the damaged hydraulic push rod 24 is repaired, the upper platform 11 is rotated back to release the plugging state between the positioning plug 36 and the positioning slot 362, and the positioning plug 36 can be driven to reset inward with the tension spring 372, thereby releasing the locking state between the limit rotation cavity 33 and the limit rotation block 34, and restoring the rotation state of the upper platform 11; The limit card plate 363 is provided to limit the movement range of the positioning plug 36, and the telescopic sleeve 371 is provided to limit the movement direction of the positioning plug 36 and protect the tension spring 372 to prevent the tension spring 372 from being twisted and extend the service life of the tension spring 372. The trestle body 12 is provided to guide the lifting cable at the outer end of the winch, and the driving motor 43 is started. The driving motor 43 can drive the worm 42 to rotate through its output shaft and the transmission belt, and then the threaded cooperation between the worm 42 and the worm wheel 41 can drive the trestle body 12 to rotate around the limited rotation groove 411, so as to achieve the effect of adjusting the angle of the lifting cable, and the connection effect between the worm 42 and the worm wheel 41 can lock the trestle body 12 to prevent the lifting cable moving with the waves from driving the trestle body 12 to move and deviate with it, thereby improving the stability of the trestle body 12.

[0027] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wave compensation winch for stabilizing a pier, comprising a lower base (1) and an upper platform (11), characterized in that: The upper platform (11) is arranged on the upper side of the lower base (1), and a trestle body (12) is arranged on the upper side of the upper platform (11). The lower base (1) and the upper platform (11) are arranged in a cross shape, and the width of the lower base (1) is twice the width of the upper platform (11). The outer periphery of the upper end of the lower base (1) is provided with first limit rotating seats (2) arranged symmetrically in pairs, and the outer periphery of the upper platform (11) is rotatably mounted with second limit rotating seats (21), and hydraulic push rods (24) are rotatably mounted between the first limit rotating seats (2) and the second limit rotating seats (21) on the upper and lower adjacent sides, and each of the hydraulic push rods (24) is arranged in an inclined manner.

2. A wave compensation winch for stabilizing a pier according to claim 1, characterized in that: The upper platform (11) is provided with limited rotation holes (22) on its periphery, and each limited rotation hole (22) has a limited rotation rod (23) fixedly mounted inside the limited rotation hole (22) for rotationally cooperating with the limited rotation hole (22).

3. A wave compensation winch for stabilizing a pier according to claim 1, characterized in that: A first driven gear (3) and a second driven gear (301) are rotatably mounted on the upper end surface of the lower base (1) and the middle of the lower end surface of the upper platform (11), respectively; a first active rack (31) meshingly connected to the first driven gear (3) is fixedly mounted between the two sides of the lower end surface of the upper platform (11); and a second active rack (311) meshingly connected to the second driven gear (301) is fixedly mounted between the two sides of the upper end surface of the lower base (1).

4. A wave compensation winch for stabilizing a pier according to claim 3, characterized in that: The upper end surface of the lower base (1) and the lower end surface of the upper platform (11) are respectively fixedly mounted with limiting ear plates (32) symmetrically arranged in pairs, and the second driven gear (301) and the first driven gear (3) are respectively rotatably mounted between the two upper and two lower limiting ear plates (32).

5. A wave compensation winch for stabilizing a pier according to claim 4, characterized in that: A limited rotation cavity (33) is provided on the inner side of the limit ear plate (32); a limited rotation block (34) which is rotationally matched with the limited rotation cavity (33) is fixedly mounted on the outer ends of the second driven gear (301) and the first driven gear (3); a plurality of mutually matching positioning slots (362) are provided at equal intervals on the inner wall of the limit rotation cavity (33); and a positioning plug block (36) which is plugged into the positioning slot (362) is slidably mounted on the outer periphery of the limit rotation block (34).

6. A wave compensation winch for stabilizing a pier according to claim 5, characterized in that: A cavity (35) is provided in the limit rotation block (34), a through hole (361) matching the positioning plug block (36) is provided on the periphery of the cavity (35), a connecting seat (37) is fixedly installed in the cavity (35), the positioning plug block (36) is plugged and installed on the periphery of the connecting seat (37), and a limit clamping plate (363) clamped with the inner side of the through hole (361) is fixedly installed on the periphery of the positioning plug block (36).

7. A wave compensation winch for stabilizing a pier according to claim 6, characterized in that: A tension spring (372) and a telescopic sleeve (371) that are plugged into each other are fixedly installed between the positioning plug block (36) and the connecting seat (37), and the tension spring (372) is arranged in the telescopic sleeve (371).

8. The heave compensation winch for stabilizing a pier according to claim 1, characterized in that: The upper end surface of the upper platform (11) is provided with a limited rotation groove (411); the lower end surface of the trestle body (12) is fixedly mounted with a worm wheel (41) that is rotationally matched with the limited rotation groove (411); the outer periphery of the worm wheel (41) is provided with a fixed seat (4) that is fixedly connected to the upper end of the upper platform (11); a worm (42) that is threadably matched with the worm wheel (41) is rotatably mounted inside the fixed seat (4); a driving motor (43) is fixedly mounted on the outer periphery of the fixed seat (4); and the output shaft at the outer end of the driving motor (43) is rotationally connected to the rotating shaft of the worm wheel (42) via a transmission belt.

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