A helicopter hoisting device

Abstract

This utility model relates to the field of lifting equipment technology, and in particular to a helicopter lifting device. The helicopter lifting device includes a motor module, a braking module, a reducer, and a lifting module. The output end of the motor module is connected to the input end of the braking module, the output end of the braking module is connected to the input end of the reducer, and the output end of the reducer is connected to the input end of the lifting module. The braking module employs a power-off braking mechanism, meaning that the braking module engages when power is cut off and disengages when power is restored. The linkage between the braking module and the motor module refers to their simultaneous power-off or power-on through parallel circuitry or mechanical linkage. When the motor module is operating, the braking module disengages; when the motor module stops operating, the braking module engages. This linkage between the motor module and the braking module improves braking timeliness and avoids the problem of poor load stability caused by untimely braking.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, and in particular to a helicopter hoisting device. Background Technology

[0002] Helicopter hoisting, with its vertical takeoff and landing and hovering capabilities, is widely used for transporting materials and installing equipment in mountainous, forested, and mining areas where transportation is difficult. For example, when conducting geological exploration in complex mountainous regions, podded helicopters can carry electromagnetic detection systems to complete high-precision airborne geophysical surveys. Furthermore, it is suitable for scenarios such as the erection of high-voltage transmission towers and the construction of communication base stations, allowing for the direct hoisting of components while avoiding ground obstacles.

[0003] The helicopter lifting device is the core component of the helicopter during lifting operations. It uses a lifting module to lift and lower the object being lifted. During the lifting process, high-precision braking of the lifting module can ensure the stability of the load. Existing braking systems use mechanical braking, which has poor braking timeliness. Therefore, the stability of the load is reduced during the braking process. Utility Model Content

[0004] The purpose of this utility model is to provide a helicopter hoisting device that can solve the problems existing in the prior art;

[0005] This utility model provides a helicopter hoisting device, which includes a motor module, a braking module, a reducer and a lifting module;

[0006] The output terminal of the motor module is connected to the input terminal of the brake module, the output terminal of the brake module is connected to the input terminal of the reducer, and the output terminal of the reducer is connected to the input terminal of the lifting module.

[0007] The braking module is a power-off braking module, and the braking module is linked with the motor module.

[0008] Preferably, the braking module includes a rotating shaft, a brake disc, a pressure disc, an elastic slide bar, an electromagnet, and a braking module housing;

[0009] The rotating shaft is housed inside the brake module housing. The input end of the rotating shaft is connected to the motor module, and the output end of the rotating shaft is connected to the reducer.

[0010] The brake disc is fixed on the rotating shaft, the pressure disc is disposed opposite to the brake disc, and the pressure disc is connected to the outer shell through an elastic slide rod;

[0011] The electromagnet is mounted on the outer casing and is positioned opposite the pressure plate.

[0012] Preferably, the elastic slide bar includes a slide bar and a spring;

[0013] The outer casing is provided with a slide rod mounting hole. One end of the slide rod is connected to the pressure plate, and the other end passes through the slide rod mounting hole. The end of the slide rod is provided with a slide rod limiting structure, which is located outside the slide rod mounting hole. The spring is sleeved on the slide rod and is located inside the slide rod mounting hole, and the end of the spring is connected to the pressure plate.

[0014] Preferably, a plurality of evenly distributed elastic slide bars are provided between the pressure plate and the outer casing.

[0015] Preferably, the outer casing is provided with a plurality of evenly distributed electromagnets.

[0016] Preferably, the brake disc and / or pressure disc are provided with a groove structure.

[0017] Preferably, the groove structure is a spiral or radial groove.

[0018] Preferably, the reducer is provided with a multi-stage planetary gear set.

[0019] Preferably, the lifting module is provided with a hook assembly.

[0020] Preferably, the housings of the motor module, brake module, reducer, and lifting module are connected by flanges.

[0021] Beneficial effects:

[0022] The braking module employs a power-off braking mechanism, meaning it engages braking when power is cut off and disengages when power is restored. The linkage between the braking module and the motor module refers to their simultaneous power outage or restoration through parallel circuitry or mechanical linkage. When the motor module is operating, the braking module disengages; when the motor module stops operating, the braking module engages again. This linkage between the motor and braking modules improves braking timeliness and avoids poor load stability issues caused by delayed braking. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of the helicopter hoisting device provided for a specific embodiment of this utility model;

[0025] Figure 2 A schematic diagram of the braking module provided for a specific embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1: Motor module, 2: Braking module, 3: Reducer, 4: Rotating shaft, 5: Braking disc, 6: Pressure disc, 7: Elastic slide bar, 8: Electromagnet, 9: Braking module housing. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figure 1 , Figure 2 As shown, this embodiment provides a helicopter hoisting device, which includes a motor module 1, a braking module 2, a reducer 3, and a lifting module.

[0032] The output end of motor module 1 is connected to the input end of brake module 2, the output end of brake module 2 is connected to the input end of reducer 3, and the output end of reducer 3 is connected to the input end of lifting module.

[0033] The braking module 2 adopts a power-off braking braking module 2, and the braking module 2 is linked with the motor module 1.

[0034] In this embodiment, the braking module 2 employs a power-off braking mechanism, meaning that braking module 2 engages braking after power is cut off and disengages upon power restoration. The linkage between braking module 2 and motor module 1 refers to their simultaneous power-off or power-on through parallel circuitry or mechanical linkage. When motor module 1 is operating, braking module 2 disengages; when motor module 1 stops operating, braking module 2 engages. This linkage between motor module 1 and braking module 2 improves braking timeliness and avoids poor load stability issues caused by untimely braking.

[0035] In this embodiment, the specific structural form of the braking module 2 is provided, as shown below:

[0036] The braking module 2 includes a rotating shaft 4, a brake disc 5, a pressure disc 6, an elastic slide bar 7, an electromagnet 8, and a braking module housing 9.

[0037] The rotating shaft 4 is installed inside the brake module housing 9. The input end of the rotating shaft 4 is connected to the motor module 1, and the output end of the rotating shaft 4 is connected to the reducer 3.

[0038] The brake disc 5 is fixed on the rotating shaft 4, and the pressure disc 6 is arranged opposite to the brake disc 5. The pressure disc 6 is connected to the outer shell through the elastic slide rod 7.

[0039] Electromagnet 8 is mounted on the outer casing, and electromagnet 8 is positioned opposite to pressure plate 6.

[0040] Under normal conditions, the elastic slide bar 7 provides a spring force to the pressure disc 6 towards the brake disc 5. Specifically, when the electromagnet 8 is energized, it attracts the pressure disc 6. This attraction is greater than the spring force provided by the elastic slide bar 7, causing the pressure disc 6 to separate from the brake disc 5. When the electromagnet 8 is de-energized, the pressure disc 6, under the action of the spring force of the elastic slide bar 7, presses against the brake disc 5, providing braking force.

[0041] In this embodiment, the specific composition of the elastic slider 7 is provided as follows:

[0042] The elastic slide bar 7 includes a slide bar and a spring. The outer shell is provided with a slide bar mounting hole. One end of the slide bar is connected to the pressure plate 6, and the other end passes through the slide bar mounting hole. The end of the slide bar is provided with a slide bar limiting structure, which is located outside the slide bar mounting hole. The spring is sleeved on the slide bar and is located inside the slide bar mounting hole. The end of the spring is connected to the pressure plate 6.

[0043] This structure, combining the slide bar, spring, and pressure plate 6, allows the slide bar to guide the movement of the pressure plate 6 and prevent misalignment. The spring provides elastic force for the pressure plate 6 to return to its original position.

[0044] Multiple evenly distributed elastic slide rods 7 are provided between the pressure plate 6 and the outer casing. By using multiple evenly distributed elastic slide rods 7, a large frictional torque can be generated when the electromagnet 8 is de-energized, resulting in a better braking effect.

[0045] Multiple evenly distributed electromagnets 8 are arranged on the outer casing. With the arrangement of multiple electromagnets 8, the electromagnets 8 can generate sufficient attraction force when energized to overcome the elastic force of the spring and separate the pressure plate 6 and the brake plate 5.

[0046] The brake disc 5 and / or pressure disc 6 are provided with groove structures. Specifically, the groove structures are spiral or radial grooves. Machining spiral or radial grooves on the friction surface increases the contact area and accelerates heat dissipation, preventing the friction coefficient from decreasing due to high temperatures.

[0047] To further improve braking performance, this embodiment employs multiple brake discs 5 and multiple pressure discs 6, arranged alternately. The outer edges of the pressure discs 6 are connected first. The outermost pressure disc 6 is connected to the elastic slide rod 7 and positioned opposite the electromagnet 8. Thus, the outermost pressure disc 6 can drive the other pressure discs 6 in conjunction, achieving contact or separation with the brake disc 5. It should be further noted that a gap exists between the brake discs 5 and the pressure discs 6, allowing the pressure discs 6 to move to achieve the aforementioned functions.

[0048] The reducer 3 is equipped with a multi-stage planetary gear set. It can convert the high speed output of the motor into a low-speed, high-torque rotation suitable for the lifting module.

[0049] The lifting module is equipped with a hook assembly. The hook assembly is used to suspend the load.

[0050] The housings of the motor module 1, brake module 2, reducer 3, and lifting module are connected by flanges. By making each component an independent unit and connecting them via flanges, assembly convenience is improved. Furthermore, it facilitates the repair and replacement of any malfunctioning component.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A helicopter hoisting device, characterized in that, Includes a motor module, a braking module, a reducer, and a lifting module; The output terminal of the motor module is connected to the input terminal of the brake module, the output terminal of the brake module is connected to the input terminal of the reducer, and the output terminal of the reducer is connected to the input terminal of the lifting module. The braking module is a power-off braking module, and the braking module is linked with the motor module. The braking module includes a rotating shaft, a brake disc, a pressure disc, an elastic slide bar, an electromagnet, and a braking module housing; The rotating shaft is housed inside the brake module housing. The input end of the rotating shaft is connected to the motor module, and the output end of the rotating shaft is connected to the reducer. The brake disc is fixed on the rotating shaft, the pressure disc is disposed opposite to the brake disc, and the pressure disc is connected to the outer shell through an elastic slide rod; The electromagnet is mounted on the outer casing and is positioned opposite the pressure plate.

2. The helicopter hoisting device according to claim 1, characterized in that, The elastic slide bar includes a slide bar and a spring; The outer casing is provided with a slide rod mounting hole. One end of the slide rod is connected to the pressure plate, and the other end passes through the slide rod mounting hole. The end of the slide rod is provided with a slide rod limiting structure, which is located outside the slide rod mounting hole. The spring is sleeved on the slide rod and is located inside the slide rod mounting hole, and the end of the spring is connected to the pressure plate.

3. The helicopter hoisting device according to claim 1, characterized in that, Multiple evenly distributed elastic slide bars are provided between the pressure plate and the outer shell.

4. The helicopter hoisting device according to claim 1, characterized in that, The outer casing is provided with a plurality of evenly distributed electromagnets.

5. The helicopter hoisting device according to claim 1, characterized in that, The brake disc and / or pressure disc are provided with a groove structure.

6. The helicopter hoisting device according to claim 5, characterized in that, The groove structure is a spiral or radial groove.

7. The helicopter hoisting device according to claim 1, characterized in that, The reducer is equipped with a multi-stage planetary gear set.

8. The helicopter hoisting device according to claim 1, characterized in that, The lifting module is equipped with a hook assembly.

9. The helicopter hoisting device according to claim 1, characterized in that, The housings of the motor module, brake module, reducer, and lifting module are connected by flanges.

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