Marine elevator system

Abstract

The utility model provides a marine elevator system, including planetary gear train, hand wheel mechanism, winch and motor, planetary gear train includes input gear shaft, sun wheel axle, planet wheel, planet carrier, output driving gear, output driven gear and output shaft, input gear shaft is connected with sun wheel axle, output driving gear is connected with planet carrier, output driven gear is connected with output shaft, output shaft is connected with output driven gear. The motor is connected with the input gear shaft, the winch is connected with the output shaft, an inner gear ring is arranged outside the planet wheel, and the hand wheel mechanism is connected with the inner gear ring. Due to the fact that the speed reducer is provided with a double-input and double-output structure, if cargoes are heavy, the winches can be installed at the two ends of the output shaft, meanwhile, the motors can be installed at the two ends of the input shaft, and the cargoes are lifted through input of the two motors and output of the two ends of the output shaft. The planetary gear train is connected with the hand wheel mechanism, when the motor breaks down, the hand wheel mechanism can be adopted to drive the planetary gear train to rotate, and then torque is transmitted to the winch.

Description

Technical Field

[0001] The utility model relates to the technical field of ship cargo transfer, in particular to a ship hoist system. Background Art

[0002] The transfer of cargo between the upper and lower decks of a ship is a relatively frequent task. At present, there are three main ways to transfer cargo up and down the ship: 1. Carrying by manpower, which is laborious and inefficient; 2. Lifting by ship crane, which occupies a large area and is not suitable for ship use; 3. Transporting by cargo lifting device, which is a cargo-carrying machine commonly used in ships, mainly composed of tower, hanging box, drive mechanism, safety device, electronic control system, lifting system and other components. When a ship sails in the wind and waves, it will sway, and the working environment is unstable, which makes the marine lifting equipment have higher reliability requirements than land use. Therefore, most of the lifting methods now use winches, and the winch is connected to the motor through a reducer. Due to the harsh environment of use, the motor may fail during use. Utility Model Content

[0003] The utility model provides a marine hoist system to solve the problem that the current hoist system uses a motor connected to a reducer for driving, and the motor may fail in a harsh water environment.

[0004] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0005] A marine hoist system, characterized in that it includes a planetary gear train, a handwheel mechanism, a winch and a motor, wherein the planetary gear train includes an input gear shaft, a sun gear shaft, a planetary gear, a planetary carrier, an output driving gear, an output driven gear and an output shaft, wherein the input gear shaft is connected to the sun gear shaft, the output driving gear is connected to the planetary carrier, the motor is connected to the input gear shaft, the winch is connected to the output shaft, an inner gear ring is provided outside the planetary gear, and the handwheel mechanism is connected to the inner gear ring.

[0006] The reducer of the present application adopts a dual-input and dual-output form. Motors can be installed on both sides of the input gear shaft. When one of the motors fails, the other can be used. If both motors fail, a handwheel mechanism can be used for manual control. The handwheel mechanism is connected to the inner ring gear. When the motor fails, the handwheel mechanism rotates, driving the inner ring gear to rotate. The rotation of the inner ring gear drives the planetary carrier to rotate, thereby outputting torque to lift the goods.

[0007] Preferably, the handwheel mechanism includes a handwheel, a turning gear input shaft, a turning driven gear, a worm and a worm wheel, wherein the turning gear input shaft is connected to the handwheel, the turning driven gear is meshed with the turning input gear shaft, the worm is connected to the turning driven gear, the worm wheel is meshed with the worm, and the worm wheel is connected to the inner gear ring through a transition seat. The worm gear transmission method is adopted so that the torque of the handwheel can be better transmitted to the planetary gear system.

[0008] Preferably, the worm and the worm wheel have a reverse self-locking function, which further prevents the electric input and the manual cranking input from affecting each other.

[0009] Preferably, an idler gear and a third-stage front gear are connected between the input gear shaft and the sun gear shaft.

[0010] Preferably, the motor is connected to the reducer by a flange and an elastic pin, and the reducer is connected to the winch by a spline.

[0011] Preferably, the winch includes a ball screw and two guide shafts, and the guide shafts are arranged in parallel with the ball screw. The reciprocating vibration caused by the force of the rope arrangement device in the winch can be reduced by using a ball screw and two guide shafts.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: through the marine lifting system provided by the present application, since the reducer is provided with a dual input and dual output structure, if the cargo is heavy, a winch can be installed at both ends of the output shaft, and a motor can also be installed at both ends of the input shaft, and the cargo can be lifted through two motor inputs and outputs at both ends of the output shaft. A handwheel mechanism is connected to the planetary gear train, and when the motor fails, the handwheel mechanism can be used to drive the planetary gear train to rotate, and then the torque is transmitted to the winch. The reducer has two input modes: electric and manual. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the structural diagram of the reducer;

[0014] Figure 2 It is a structural diagram of the handwheel mechanism;

[0015] Figure 3 for Figure 1 Transmission schematic diagram;

[0016] Figure 4 The structure of the winch is shown in Figure 1. Figure 1 ;

[0017] Figure 5 The structure of the winch is shown in Figure 1. Figure 2 .

[0018] Markings in the figure: 1-input gear shaft, 2-idler gear, 3-third-stage front gear, 4-sun gear shaft, 5-planetary gear, 6-planet carrier, 7-inner ring gear, 8-handwheel, 9-worm, 10-worm gear, 11-output driving gear, 12-output driven gear, 13-output shaft, 14-cranking driven gear, 15-cranking input gear shaft, 16-winch, 17-transition seat. DETAILED DESCRIPTION

[0019] The utility model is described in detail below in conjunction with the accompanying drawings.

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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 invention.

[0022] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0023] like Figure 1 As shown, the present application provides a marine hoist system, including a planetary gear train, a handwheel mechanism, a winch 16 and a motor.

[0024] The planetary gear train includes an input gear shaft 1, an idler gear 2, a three-stage front gear 3, a sun gear shaft 4, planetary gears 5 and a planet carrier 6, an output driving gear 11, an output driven gear 12 and an output shaft 13. The input gear shaft 1 is connected to the sun gear shaft 4, and the output driving gear 11 is connected to the planet carrier 6.

[0025] The motor is connected to the input gear shaft 1 , the winch 16 is connected to the output shaft 13 , the planetary gear 5 is provided with an inner gear ring 7 outside, and the handwheel mechanism is connected to the inner gear ring 7 .

[0026] like Figure 2 As shown, the handwheel mechanism includes a handwheel 8, a turning gear input shaft 15, a turning driven gear 14, a worm 9 and a worm wheel 10. The turning gear input shaft 15 is connected to the handwheel 8, the turning driven gear 14 is meshed with the turning gear input shaft 15, the worm 9 is connected to the turning driven gear 14, the worm wheel 10 is meshed with the worm 9, and the worm wheel 10 is connected to the inner gear ring 7 through a transition seat 17. In order to prevent the motor input and the manual input from affecting each other, a worm gear with a reverse self-locking function is selected. The handwheel adopts a disc handwheel with a handle, which is convenient to operate.

[0027] The motor is connected to the input gear shaft 1 of the reducer by a flange and an elastic pin, and the winch 16 is connected to the output shaft 13 of the reducer by a spline.

[0028] The winch 16 is mainly composed of a frame, a drum and a rope guide. A bracket is added next to the rope guide to install a position sensor, which can prevent the rope guide ball from overtravel. The winch 16 includes a ball screw and two guide shafts, which are arranged parallel to the ball screw to reduce the reciprocating vibration caused by the force on the rope guide.

[0029] Single motor input mode: According to the space layout conditions and load requirements, the single motor input mode can be selected. Both left and right motors are acceptable. The power is input from one motor to the input gear shaft 1, passes through the idler gear 2, the three-stage front gear 3, the sun gear shaft 4, the planetary gear 5, the planetary carrier 6, the output driving gear 11, and the output driven gear 12, and is transmitted to the winch 16 drum through the spline on the output shaft 13. The drum pulls the steel cable, and the steel cable pulls the load through the rope arranger.

[0030] Dual motor input mode: If the load is larger, two motors can be selected for simultaneous input. The power is input simultaneously from both ends of the input gear shaft 1, and then passes through the idler gear 2, the third-stage front gear 3, the sun gear shaft 4, the planetary gear 5, the planetary carrier 6, the output driving gear 11, and the output driven gear 12. The power is transmitted to the winch 16 drum through the spline on the output shaft 13. The drum pulls the steel cable, and the steel cable pulls the load through the rope arranger.

[0031] Manual cranking input mode: The manual cranking mechanism can realize the freight function of the elevator when the motor cannot work normally, and does not affect the transmission efficiency of the system when the motor works normally. During manual cranking, the power is transmitted to the worm 9 through the cranking input gear shaft 15 and the cranking driven gear 14. The worm 9 drives the worm wheel 10 connected to the planetary internal gear ring 7. Under the action of the brake at the input end of the motor, the sun gear shaft 4 is fixed, and the internal gear ring 7 drives the planetary carrier 6 to output and lift the heavy objects through the winch 16. When the motor drives the input, the reverse self-locking function of the worm gear fixes the internal gear ring of the planetary gear.

[0032] The marine lifting system provided in this application realizes various input forms such as single motor input, dual motor input, manual turning input, etc. through the combined transmission mode of the reducer, worm gear and planetary stage.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A marine hoist system, characterized in that: The invention comprises a planetary gear train, a handwheel mechanism, a winch and a motor. The planetary gear train comprises an input gear shaft (1), a sun gear shaft (4), a planetary gear (5), a planet carrier (6), an output driving gear (11), an output driven gear (12) and an output shaft (13). The input gear shaft (1) is connected to the sun gear shaft (4), the output driving gear (11) is connected to the planet carrier (6), the motor is connected to the input gear shaft (1), the winch is connected to the output shaft (13), an inner gear ring (7) is provided outside the planetary gear (5), and the handwheel mechanism is connected to the inner gear ring (7).

2. The marine hoist system according to claim 1, characterized in that: The handwheel mechanism comprises a handwheel (8), a turning gear input shaft (15), a turning gear driven gear (14), a worm (9) and a worm wheel (10); the turning gear input shaft (15) is connected to the handwheel (8); the turning gear driven gear (14) is meshed with the turning gear input shaft (15); the worm (9) is connected to the turning gear driven gear (14); the worm wheel (10) is meshed with the worm (9); and the worm wheel (10) is connected to the inner gear ring (7) via a transition seat (17).

3. The marine hoist system according to claim 2, characterized in that: The worm (9) and the worm wheel (10) have a reverse self-locking function.

4. The marine hoist system according to claim 1, characterized in that: An idler gear (2) and a three-stage front gear (3) are connected between the input gear shaft (1) and the sun gear shaft (4).

5. The marine hoist system according to claim 1, characterized in that: The motor is connected to the reducer by a flange and an elastic pin, and the reducer is connected to the winch by a spline.

6. The marine hoist system according to claim 5, characterized in that: The winch comprises a ball screw and two guide shafts, and the guide shafts are arranged parallel to the ball screw.

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