A small marine hoist driving device

Abstract

The utility model discloses a small marine hoist driving device, which belongs to the technical field of marine hoisting devices. The utility model includes a supporting mechanism, a hoisting mechanism and a driving mechanism are connected to the supporting mechanism, the driving mechanism is connected to the hoisting mechanism through a transmission mechanism, the hoisting mechanism includes a drum and a wire rope guide unit, the wire rope guide unit includes a rope arrangement part and a rope guide part, a wire rope support part is provided on the drum, the driving mechanism includes a driving motor, the transmission mechanism includes a transmission shaft and a multi-stage transmission gear, the multi-stage transmission gear is arranged on the side of the drum end and the end is adaptively connected to the drum. The hoist driving device provided by the utility model is small and convenient, suitable for use on a cargo hold deck, a wire rope support part for supporting a wire rope is arranged on the drum, the wire rope can be stably wound, and the risk of wire rope extrusion deformation and breakage caused by multi-layer winding can be avoided, the use is safe and reliable, and the service life of the hoisting device is extended.

Description

Technical Field

[0001] The utility model belongs to the technical field of marine lifting equipment, and more specifically relates to a small marine hoist driving device. Background Art

[0002] A winch is a small or light lifting equipment that lifts or pulls heavy objects by winding a wire rope or chain around a drum. It is also called a winch or hoist. The winch can lift heavy objects vertically, horizontally or at an angle.

[0003] In the prior art, there is no dedicated single-phase 220V small hoist for ships. Generally, small hoisting equipment for land use is used. In order to improve its load capacity, the drum diameter is usually designed to be smaller. However, the smaller the drum diameter, the more layers of wire rope will be wound. Once the objects are lifted, the wire rope layers will be squeezed and deformed, and the wire rope is prone to breakage, which poses a great safety hazard. In addition, the lifting height of small land hoists is usually around 10m, which is difficult to meet the requirements of high depth and high lifting height of the cabin. The solution is to increase the length of the wire rope, but the increase in the length of the wire rope will cause the risk of it being tangled and squeezed on the drum. Utility Model Content

[0004] The utility model aims at solving the technical problems existing in the prior art and provides a small-sized marine hoist driving device.

[0005] In order to solve the above technical problems, the utility model includes a supporting mechanism, a lifting mechanism and a driving mechanism are connected to the supporting mechanism, the driving mechanism is connected to the lifting mechanism through a transmission mechanism, the lifting mechanism includes a drum and a wire rope guide unit, the wire rope guide unit includes a rope arrangement part and a rope guide part, the drum is provided with a wire rope support part, the driving mechanism includes a driving motor, the transmission mechanism includes a transmission shaft and a multi-stage transmission gear, the multi-stage transmission gear is arranged on the side of the end of the drum and the end is adaptively connected to the drum.

[0006] Preferably, the wire rope support portion is a support groove arranged on the outer peripheral side of the drum, and the support grooves are evenly distributed along the circumference of the drum, and the support grooves are used to support the wire rope.

[0007] Preferably, the support groove is spirally arranged along the axial direction of the reel, and the support groove is a U-shaped or V-shaped groove structure.

[0008] Preferably, the rope arranging part and the rope guiding part are both arranged on the outer peripheral side of the drum, the rope arranging part is provided with a rope arranging device, and the rope guiding part is provided with a rope guiding mechanism, which includes a screw and a guide wheel, and the guide wheel is arranged on the screw.

[0009] Preferably, the end of the guide rope portion is connected to the supporting mechanism, and the guide rope portion is arranged on the upper part of the reel, the screw rod and the reel are arranged parallel to each other, and the guide wheel is movably connected to the screw rod.

[0010] Preferably, the guide wheel is a circular wheel structure, and a guide groove is provided on the outer periphery of the guide wheel, and the guide groove is a V-shaped groove structure.

[0011] Preferably, the supporting mechanism includes a supporting base plate and a supporting frame plate arranged on the supporting base plate, two supporting frame plates are provided and are respectively and vertically fixedly arranged at both ends of the upper part of the supporting base plate, and the end of the reel is connected to the supporting frame plate.

[0012] Preferably, it also includes a control system, the control system is provided with a frequency conversion control device, and the frequency conversion control device is provided with a suitcase-type external frame structure.

[0013] Preferably, the drive motor is arranged on the side of the reel, and the drive shaft of the drive motor and the reel are arranged parallel to each other, the outer end of the drive shaft is a gear shaft structure, the drive shaft is connected to the transmission mechanism, and a protective cover is provided on the periphery of the transmission mechanism.

[0014] Preferably, the transmission mechanism includes a first transmission gear and a second transmission gear, and the first transmission gear and the second transmission gear are respectively connected to the first transmission shaft and the second transmission shaft, the first transmission gear is connected to the drive shaft, the first transmission shaft is connected to the second transmission gear, and the end of the second transmission shaft is connected to the lifting mechanism.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The hoist driving device provided by the utility model is small and convenient, suitable for use on a cargo hold deck, a wire rope supporting part for supporting the wire rope is arranged on the drum, so that the wire rope can be wound stably, avoiding the risk of extrusion deformation and breakage of the wire rope caused by multi-layer winding, and the use is safe and reliable, and the service life of the lifting equipment is extended; and the utility model further ensures the lifting stability of the wire rope through the cooperation of the rope arranging part and the rope guiding part, and ensures that the wire rope will not be tangled or extruded and deformed even at a large swing angle when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a partial structure diagram of the utility model Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0022] Figure 5 It is a partial structure diagram of the utility model Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the structure of the guide wheel of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the frequency conversion control device of the utility model.

[0025] Explanation of symbols in the figure:

[0026] 1. Support mechanism; 11. Support base plate; 12. Support frame plate; 13. Support rod; 2. Lifting mechanism; 21. Reel; 22. Rope arrangement unit; 23. Rope guide unit; 231. Screw rod; 232. Guide wheel; 233. Guide groove; 24. Wire rope support unit; 241. Support groove; 3. Driving mechanism; 31. Driving motor; 32. Driving shaft; 4. Transmission mechanism; 41. First transmission gear; 42. Second transmission gear; 43. First transmission shaft; 44. Second transmission shaft; 5. Protective cover; 6. Frequency conversion control equipment. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] See also Figure 1 , Figure 2 The utility model provides a small marine hoist driving device, including a supporting mechanism 1, a lifting mechanism 2 and a driving mechanism 3 are connected to the supporting mechanism 1, the driving mechanism 3 is connected to the lifting mechanism 2 through a transmission mechanism 4, the lifting mechanism 2 includes a drum 21 and a wire rope guide unit, the wire rope guide unit includes a rope arrangement part 22 and a rope guide part 23, a wire rope support part 24 is provided on the drum 21, the driving mechanism 3 includes a driving motor 31, the transmission mechanism 4 includes a transmission shaft and a multi-stage transmission gear, the multi-stage transmission gear is arranged on the side of the end of the drum 21 and the end is adaptively connected to the drum 21.

[0029] The hoist driving device provided by the utility model is compact and convenient, suitable for use on cargo hold decks, a wire rope supporting portion 24 for supporting the wire rope is arranged on the drum 21, which can stably wind the wire rope and avoid the risk of wire rope extrusion deformation and breakage caused by multi-layer winding, making it safe and reliable to use and extending the service life of the lifting equipment; and the utility model cooperates with the rope arranging portion 22 and the rope guiding portion 23 to further ensure the lifting stability of the wire rope and ensure that the wire rope will not be tangled or extruded and deformed even at a large swing angle when in use.

[0030] In this embodiment, Figure 3 , Figure 4 As shown, the wire rope support portion 24 is a support groove 241 arranged on the outer peripheral side of the drum 21, and the support groove 241 is evenly distributed along the circumference of the drum 21, and the support groove 241 is used to support the wire rope.

[0031] Specifically, the drum 21 is a horizontally arranged cylindrical structure, the wire rope is wound around the outer peripheral side of the drum, the support groove 241 is an integral structure or a split welded structure arranged on the outer periphery of the drum 21, the support groove 21 is a slotted structure arranged on the outer periphery of the drum 21, the support groove 241 is arranged at a slightly inclined angle along the radial direction of the drum 21, and along the axial direction of the drum 21, the support groove 241 on the drum 21 is arranged in a spiral shape, which is convenient for supporting and winding the wire rope.

[0032] In this embodiment, the shape of the support groove 241 matches the steel wire rope, and the width and depth of the support groove 241 are compatible with the marine steel wire rope. Preferably, the support groove 241 can be set to a U-shaped or V-shaped groove structure to facilitate the winding of the steel wire rope.

[0033] Furthermore, as a preferred embodiment of the present invention, in order to basically cover the current needs of lifting items in the cargo hold of a cargo ship, the lifting equipment is set to a drum assembly that needs to lift 25m-35m, and the parameters of the hoist drum are calculated based on the set motor-related parameters and transmission parameters, as well as the height of the cabin, and the size of the drum 21 and the specific number of support grooves 241 on the drum 21 are set according to the lifting requirements. The support grooves 241 are evenly distributed along the outer circumference of the drum 21, and the present invention adopts a single-layer steel wire rope winding method, which not only meets the lifting needs of the hoist, but also uses a single-layer steel wire rope to completely avoid the safety hazards such as extrusion and deformation caused by multi-layer winding of steel wire ropes of traditional small land winches. It is reliable to use and extends the service life of the steel wire rope.

[0034] In this embodiment, the rope arranging part 22 and the rope guiding part 23 of the wire rope guiding unit are both arranged on the outer peripheral side of the drum 21. The rope arranging part 22 is provided with a rope arranging device, which is sleeved on the outer periphery of the wire rope of the drum 21, and the upper end is slidably connected to the support rod 13 of the support mechanism 1, so as to facilitate axial movement for arranging the wire rope.

[0035] The rope guide used in this embodiment is an existing standard part adapted for use with the reel 21, so its specific structure will not be described in detail here.

[0036] Specifically, Figure 5 As shown, the guide rope portion 23 is provided with a guide rope mechanism, which includes a screw rod 231 and a guide wheel 232. The screw rod 231 is fixedly arranged on the support mechanism 1, and the guide wheel 232 is arranged on the screw rod 231. The screw rod 231 and the guide wheel 232 are both arranged on the upper part of the drum 21. The screw rod 231 and the drum 21 are axially arranged parallel to each other, and the guide wheel 232 is movably connected to the screw rod 231, thereby ensuring that the wire rope on the drum 21 is always flush with the support groove 241 of the drum 21 during winding, which facilitates winding and avoids tangled ropes and extrusion deformation.

[0037] Furthermore, in this embodiment, if Figure 5 , Figure 6 As shown, the guide wheel 232 is a circular wheel structure, which can slide axially along the screw rod 231. The outer periphery of the guide wheel 232 is provided with a guide groove 233, which is used to support and guide the wire rope when the wire rope is retracted or released; the guide groove 233 is a V-groove structure, and the V-groove structure can increase the friction between the guide wheel 232 and the wire rope, thereby ensuring the synchronization between the rope guide mechanism and the drum 21.

[0038] The utility model adopts the cooperation between the rope guide mechanism and the rope arranger, and double guidance, to ensure that the steel wire rope will not be tangled, squeezed and deformed even at a large swing angle, and is more suitable for ship cargo hold lifting occasions.

[0039] like Figure 5 As shown, in this embodiment, the support mechanism 1 includes a support base plate 11 and a support frame plate 12 arranged on the support base plate 11. Two support frame plates 12 are provided and are vertically fixed at both ends of the upper part of the support base plate 11, and the end of the reel 21 is connected to the support frame plate 12.

[0040] Specifically, the supporting base plate 11 is horizontally arranged, and the supporting frame plate 12 is vertically arranged at the left and right ends of the upper part of the supporting base plate 11 through connecting bolt and nut assemblies. The reel 21 and the driving motor 31 are arranged on the upper part of the supporting base plate 11 and between the two supporting frame plates 12. The two ends of the reel 21 are connected to the supporting frame plates 12. By arranging the lifting mechanism 2 on the supporting frame plate 12, it is not only convenient to use, but also easy to hang and disassemble, avoiding the safety hazards caused by high-altitude suspension.

[0041] In this embodiment, the screw rod 231 and the support rod 13 are both arranged on the upper part of the support frame plate 12, and the ends are respectively vertically connected to the two support frame plates 12 to provide stable support.

[0042] In this embodiment, the drive motor 31 is arranged on the side of the drum 21, and the drive shaft 32 of the drive motor 31 is arranged parallel to the drum 21, which makes driving and transmission more convenient and simplifies the components. The outer end of the drive shaft 32 is a gear shaft structure, and the end of the drive motor 31 is connected to the transmission mechanism 4 through the drive shaft 32, and then the rotation of the drum 21 and the lifting of the wire rope are realized through the transmission mechanism 4.

[0043] The driving motor 31 used in this embodiment is a 220V three-phase motor with a high protection level and a brake, which meets the load requirements and is suitable for use in a high salt fog environment at sea.

[0044] Specifically, Figure 5 As shown, the transmission mechanism 4 includes a first transmission gear 41 and a second transmission gear 42, and the first transmission gear 41 and the second transmission gear 42 are respectively connected with a first transmission shaft 43 and a second transmission shaft 44, the first transmission gear 41 is meshed and connected with the drive shaft 32, the first transmission shaft 43 is meshed and connected with the second transmission gear 42, and the end of the second transmission shaft 44 is connected with the end of the reel 21 of the lifting mechanism 2. In addition, the first transmission shaft 43 and the second transmission shaft 44 are both provided with connecting bearings, connecting flat keys, shaft retaining rings and other structures adapted to their actions, so as to ensure the smooth operation of the transmission mechanism 4.

[0045] Furthermore, Figure 1 As shown, a protective cover 5 is provided on the periphery of the transmission mechanism 4, and the inner end of the protective cover 5 is fixedly connected to the support frame plate 12 of the support mechanism 1 by a plurality of connecting screws. The protective cover 5 protects the internal structure and improves the operational safety of the lifting equipment.

[0046] This embodiment also includes a control system, which is provided with a frequency conversion control device 6, such as Figure 7As shown, the control system of the external braking resistor controlled by frequency conversion is fully adapted to the electrical use of the ship deck, and the frequency conversion control device 6 is provided with a suitcase-type external frame structure. The lifting equipment is controlled by the suitcase-type structure, which is not only simple to control, but also convenient and quick to carry, and can be taken whenever needed. In addition, a plug-in aviation plug is provided on it, which is convenient to connect.

[0047] Furthermore, by adopting variable frequency control, there is no effect on the load capacity of the motor, and the motor uses the S1 working mode, which can achieve continuous operation and meet the needs of marine lifting equipment.

[0048] The hoist drive device provided by the utility model is small and convenient, suitable for use on the cargo hold deck of a ship, and can conveniently lift the cargo from the bottom of the hold to the deck. It adopts a variable frequency control system, which is adapted to the electrical system of the ship deck, and the control box is easy to use and easy to take, and the control device can realize the connection work. The drum 21 is provided with a support groove 241 for supporting the wire rope, which can stably wind the wire rope, and the wire rope adopts a single-layer winding method to avoid the risk of wire rope extrusion deformation and breakage caused by multi-layer winding. It is safe and reliable to use and prolongs the service life of the lifting equipment; and the utility model cooperates with the rope arrangement part 22 and the rope guide part 23 to coordinate the action, further ensuring the lifting stability of the wire rope, and ensuring that the wire rope will not be tangled and extruded and deformed even at a large swing angle when in use.

[0049] In the description of the present invention, it should be understood that terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A small marine hoist driving device, comprising a supporting mechanism, to which a lifting mechanism and a driving mechanism are connected, characterized in that: The driving mechanism is connected to the lifting mechanism through a transmission mechanism, the lifting mechanism includes a drum and a wire rope guide unit, the wire rope guide unit includes a rope arrangement part and a rope guide part, the drum is provided with a wire rope support part, the driving mechanism includes a driving motor, the transmission mechanism includes a transmission shaft and a multi-stage transmission gear, the multi-stage transmission gear is arranged on the side of the end of the drum and the end is adaptively connected to the drum.

2. A small marine hoist driving device according to claim 1, characterized in that: The wire rope support portion is a support groove arranged on the outer peripheral side of the drum, and the support grooves are evenly distributed along the circumference of the drum, and the support grooves are used to support the wire rope.

3. A small marine hoist driving device according to claim 2, characterized in that: The support groove is spirally arranged along the axial direction of the reel, and the support groove is a U-shaped or V-shaped groove structure.

4. A small marine hoist driving device according to claim 1, characterized in that: The rope arranging part and the rope guiding part are both arranged on the outer peripheral side of the drum. The rope arranging part is provided with a rope arranging device, and the rope guiding part is provided with a rope guiding mechanism. The rope guiding mechanism includes a screw and a guide wheel. The guide wheel is arranged on the screw.

5. A small marine hoist driving device according to claim 4, characterized in that: The end of the guide rope portion is connected to the supporting mechanism, and the guide rope portion is arranged on the upper part of the reel. The screw rod and the reel are arranged parallel to each other, and the guide wheel is movably connected to the screw rod.

6. A small marine hoist driving device according to claim 4, characterized in that: The guide wheel is a circular wheel structure, and a guide groove is provided on the outer periphery of the guide wheel, and the guide groove is a V-shaped groove structure.

7. A small marine hoist driving device according to claim 1, characterized in that: The support mechanism includes a support base plate and a support frame plate arranged on the support base plate. The support frame plates are provided with two and are respectively and vertically fixedly arranged at the two ends of the upper part of the support base plate. The end of the reel is connected to the support frame plates.

8. A small marine hoist driving device according to claim 1, characterized in that: It also includes a control system, which is provided with a variable frequency control device, and the variable frequency control device is provided with a suitcase-type external frame structure.

9. A small marine hoist driving device according to any one of claims 1 to 8, characterized in that: The drive motor is arranged on the side of the reel, and the drive shaft of the drive motor is arranged parallel to the reel. The outer end of the drive shaft is a gear shaft structure. The drive shaft is connected to the transmission mechanism, and a protective cover is arranged on the periphery of the transmission mechanism.

10. A small marine hoist driving device according to claim 9, characterized in that: The transmission mechanism includes a first transmission gear and a second transmission gear, and the first transmission gear and the second transmission gear are respectively connected to a first transmission shaft and a second transmission shaft, the first transmission gear is connected to the drive shaft, the first transmission shaft is connected to the second transmission gear, and an end of the second transmission shaft is connected to the lifting mechanism.

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