Lifting appliance, aircraft comprising lifting appliance and lifting equipment

Abstract

The utility model relates to a lifting appliance, an aircraft comprising the lifting appliance, hoisting equipment and a method for eliminating swinging of the lifting appliance. Specifically, the lifting appliance comprises a lifting device and a bearing device, the lifting device is provided with a plurality of capstan units, each capstan unit comprises a capstan, a rope and a motor, the motor is connected with the capstan so as to drive the capstan to rotate, one end of the rope is wound on the capstan, and the other end of the rope is connected with the bearing device. The utility model further provides an aircraft comprising the lifting appliance and lifting equipment.

Description

Technical Field

[0001] The present application belongs to the field of lifting equipment, and in particular, relates to a lifting device capable of adjusting posture and an aircraft or lifting equipment containing the same. Background Art

[0002] The background description provided here is used to generally introduce the background of this application. The work of the inventors currently named in this background section to the extent described, and the aspects of this description that do not constitute prior art at the time of application, are neither explicitly nor implicitly admitted to be prior art that conflicts with this application.

[0003] Lifting devices are widely used in the fields of construction engineering, manufacturing, and cargo transportation. Lifting devices in the prior art usually use ropes and a hook to lift objects, that is, a rope is hung on the object or the object is tied with a rope, and then the rope is hung on the hook and lifted by a lifting device. However, when using the slings in the prior art, since the force on the object in the vertical direction is concentrated on a hook, the object is prone to horizontal rotation and vertical tilt during the lifting process, and the balance and stability cannot be effectively guaranteed, thus creating a safety hazard. Especially in the field of cargo aircraft, the aircraft is usually affected by factors such as wind during the process of lowering or retracting the sling, causing the sling to swing, thereby affecting the sling's ability to accurately grab the cargo or accurately enter the cabin. Similarly, the lifting equipment will be affected by the wind during the process of lowering or retracting the sling, which will also cause the sling to swing and create a safety hazard.

[0004] Therefore, a new sling and method are needed to solve the above problems. Utility Model Content

[0005] This section introduces a selection of concepts of the present application in a simplified form, which concepts are further described in the detailed description below. This section is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0006] In response to the problems existing in the prior art, the present application provides a sling, which includes a lifting device and a carrying device, wherein the lifting device is provided with a plurality of winch units, and the winch unit includes a winch, a rope and a motor, the motor is connected to the winch to drive the winch to rotate, one end of the rope is wound around the winch, and the other end is connected to the carrying device.

[0007] Preferably, the carrying device is provided with a steering gear corresponding to each winch unit, and the steering disc of the steering gear is provided with a first through hole, and the rope passes through the first through hole to be connected with the carrying device.

[0008] Preferably, the bearing device is provided with a steering gear support, and the steering gear is mounted to the steering gear support.

[0009] Preferably, the steering gear support is provided with a waist-shaped hole, and the steering disc extends into the waist-shaped hole and can swing in the waist-shaped hole.

[0010] Preferably, a second through hole is provided on the top of the steering gear support, the second through hole is communicated with the waist-shaped hole, and the rope passes through the second through hole.

[0011] Preferably, the second through hole is provided with a lining.

[0012] Preferably, the lining is made of a ceramic material.

[0013] Preferably, the winch unit further comprises a pulley, the pulley is mounted on the pulley seat, and a surface of the pulley is provided with a groove surrounding the pulley, and the rope passes through the groove.

[0014] Preferably, the groove is a V-shaped groove.

[0015] Preferably, the carrying device is provided with a mounting hole.

[0016] Preferably, the carrying device is provided with a posture detection device so as to detect the posture of the carrying device.

[0017] Preferably, the sling further comprises a controller, and the controller is capable of controlling the rotation of the winch and the swing of the steering wheel.

[0018] On the other hand, the present application provides an aircraft, wherein the aircraft comprises the above-mentioned sling.

[0019] On the other hand, the present application provides a lifting device, which includes the above-mentioned lifting equipment.

[0020] In another aspect, the present application provides a method for eliminating spreader swing, the method comprising the following steps:

[0021] (1) Detect the swing direction of the spreader;

[0022] (2) According to the swing direction of the spreader, the rope on the opposite side of the swing direction of the spreader is retracted by the winch and the steering gear to eliminate the swing.

[0023] Advantageously, a posture detection device is used to detect the swing direction of the spreader, and the information of the swing direction is sent to the controller, and the controller sends instructions to the winch and the steering gear according to the information of the swing direction to retract the rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other or additional features, advantages and details are presented by way of example only in the following detailed description of the embodiments. In the drawings:

[0025] Figure 1 A spreader according to the principles of the present application is schematically shown;

[0026] Figure 2 A load-bearing device of a spreader according to the principles of the present application is schematically shown;

[0027] Figure 3 A servo according to the principles of the present application is schematically shown;

[0028] Figure 4 The figure schematically shows a steering gear and a steering gear support according to the principle of the present application;

[0029] Figure 5 A schematic diagram of a steering gear support according to the principles of the present application is shown; and

[0030] Figure 6 A partial cross-sectional view of a steering gear support according to the principles of the present application is schematically shown. DETAILED DESCRIPTION

[0031] The following description is merely exemplary in nature and is not intended to limit the present application, application or use. Furthermore, there is no intention to be limited by any express or implied theory presented in the preceding technical field, background technology and utility model content or the following detailed description. It should be understood that throughout the drawings, corresponding reference numerals identify similar or corresponding parts or features.

[0032] The present application will now be further elaborated. In the following paragraphs, different aspects of the present application are defined in more detail. Unless clearly indicated to the contrary, each aspect so defined can be combined with any other (multiple) aspects. Especially, any feature indicated as preferred or advantageous can be combined with any other (multiple) features indicated as preferred or advantageous.

[0033] Refer to the attached Figure 1, shows a sling 100 according to the principle of the present application. The sling 100 includes a lifting device 110 and a load-bearing device 120, and the lifting device 110 is provided with a plurality of winch units 130, wherein the winch unit 130 includes a winch 131, a rope 132 and a motor 133. Preferably, the motor 133 is a servo motor. The motor 133 is connected to the winch 131, thereby providing power to the winch 131 and driving the winch 131 to rotate. Advantageously, a reducer (not shown) of different specifications can be arranged between the motor 133 and the winch 131, so as to provide different rotation speeds for the winch 131 according to different application scenarios. One end of the rope 132 is wound around the winch 131, and the other end is connected to the load-bearing device 120, whereby the rope 132 can be retracted and released as the winch 131 rotates, thereby lifting or lowering the load-bearing device 120. Advantageously, the carrying device 120 is in the shape of a rectangular plate, there are four winch units 130, and the rope 132 is connected at each corner of the carrying device 120. Alternatively, the carrying device 120 may also be in the shape of a strip, there are two winch units 130, and the rope 132 is connected at both ends of the carrying device 120. Alternatively, the carrying device 120 may also be in the shape of a circle, there are more than three winch units 130, and the ropes 132 are connected to the carrying device 120 at uniform intervals around the center of the circle. As understood by those skilled in the art, the carrying device 120 may also be in other shapes, and the winch units 130 may also be set to an appropriate number as needed, and the ropes 132 are respectively connected to appropriate positions of the carrying device 120 and the winch. In the lifting operation, when the carrying device 120 swings due to factors such as wind force, the corresponding winch 131 on the side opposite to the swinging direction may be started to rotate to shrink the rope 132 on that side by a corresponding length, thereby offsetting the swinging of the carrying device 120.

[0034] See attached Figure 2 and attached Figure 3 The carrying device 120 is provided with a steering gear 140 corresponding to each winch unit 130. The steering gear 140 includes a steering plate 141. The steering plate 141 is generally in a strip shape, one end of which is connected to the steering gear body, and the other end extends in a direction away from the steering gear body. When the steering gear 140 is started, the steering plate 141 can swing around the connection between it and the steering gear body. The steering plate 141 is provided with a first through hole 142. The rope 132 passes through the first through hole 142 and is connected to the carrying device 120, thereby connecting the carrying device 120 with the lifting device 110, so that the carrying device 120 can be lifted and lowered as the winch 131 rotates.

[0035] See attached Figure 2 , Attachment Figure 4 and attached Figure 5The bearing device 120 is provided with a steering engine support 150, and the steering engine 140 is installed on the steering engine support 150, thereby enhancing the stability of the steering engine 140. A waist-shaped hole 151 is provided on the steering engine support 150, and the steering plate 141 extends into the waist-shaped hole 151 and can swing in the waist-shaped hole 151, so that the swing range of the steering plate 141 is limited in the waist-shaped hole 151. Advantageously, a second through hole 152 is provided on the top of the steering engine support 150, and the second through hole 152 is connected with the waist-shaped hole 151, and the rope 132 passes through the second through hole 152 and enters the waist-shaped hole 151, and then the rope 132 passes through the first through hole 142 and is connected to the bearing device 120.

[0036] It is easy for a person skilled in the art to understand that, since the motor 133 has a minimum rotation angle, it is not easy to eliminate the small swing by simply driving the winch 131 with the motor 133. For example, when the carrying device 120 has only a small swing, when eliminating the swing, the rope 132 on the side opposite to the swing direction may shrink too much because the minimum rotation angle of the motor 133 is too large, thereby causing the carrying device 120 to swing in the opposite direction. Therefore, it is necessary to use the steering gear 140 to eliminate the small swing. When the carrying device 120 has a small swing, the steering wheel 141 of the steering gear 140 can be driven to swing, so that the rope 132 passing through the steering wheel 141 is tightened, so that the rope 132 shrinks a corresponding length, and the swing of the carrying device 120 is eliminated. It is easy for a person skilled in the art to understand that the setting of the second through hole 152 makes it easier to tighten the steering wheel 141 when it rotates. When eliminating the small swing, it can be done by the steering gear 140 alone, or it can be done by the steering gear 140 and the winch unit 130 in cooperation. Advantageously, the waist-shaped hole 151 is also provided with a third through hole (not shown), and the rope 132 extends out from the second through hole 152 and enters the third through hole, enters the interior of the servo support 150 through the third through hole, and is connected to the supporting device 120 at the bottom of the servo support 150. As a result, the connection point of the rope 132 is located inside the servo support 150, thereby providing protection for it, avoiding damage from external forces and environmental erosion, and ensuring a stable connection between the rope 132 and the supporting device 120.

[0037] Refer to the attached Figure 3 , Attachment Figure 4 and attached Figure 5, connecting parts 143 are provided on both sides of the steering gear 140, and the connecting parts 143 are provided with first connecting holes 144. Mounting parts 154 are provided on both sides of the steering gear support 150, and the mounting parts 154 are provided with second connecting holes 155. The first connecting hole 144 and the second connecting hole 155 can be connected by screws or pins, so that the steering gear 140 is mounted to the steering gear support 150. Advantageously, the mounting parts 154 and the body of the steering gear support 150 form a mounting groove 156, so that the body of the steering gear 140 can be set in the mounting groove 156, thereby improving the stability of the steering gear 140.

[0038] See attached Figure 3 and attached Figure 4 The second through hole 152 is provided with an inner lining 153, so as to withstand the friction of the rope 132 and prevent the rope 132 from wearing the second through hole 152 due to repeated retraction and release. Advantageously, the inner lining 153 is made of a wear-resistant material, such as ceramic material, wear-resistant steel, high chromium alloy bimetallic composite material, wear-resistant cast iron, polyethylene material, polytetrafluoroethylene material, silicon carbide and the like.

[0039] See attached Figure 1 The winch unit 130 further includes a pulley 134 so as to change the direction of the rope 132 and provide support for the rope 132. The pulley 134 is mounted on a pulley seat 135, and a groove surrounding the pulley is provided on the surface of the pulley 134. The rope 132 extends from the winch 131 and passes through the groove of the pulley 134, and changes direction after passing through the groove to connect with the carrying device 120. Advantageously, the groove of the pulley 134 is a V-shaped groove, that is, the cross section of the groove is V-shaped, which is conducive to the stable extension of the rope 132 in the groove and prevents swinging. Advantageously, the winch unit 130 further includes a winch support 136, and the winch 131 can be mounted to the winch support 136. Advantageously, the central axis of the winch 131 can be parallel to the lifting device 110, or can be perpendicular to the lifting device 110, and different winch arrangements can be selected according to the needs of spatial arrangement. Advantageously, the carrying device 120 is provided with a mounting hole 121 for mounting other equipment. For example, the mounting hole 121 can be used to mount a hook or a mechanical gripper for lifting or grabbing goods or cargo boxes.

[0040] Advantageously, the load-bearing device 120 may also be provided with a posture detection device 122, which can detect the swing of the load-bearing device 120 in real time. The posture detection device 122 may be an electronic device such as an inertial navigation device, a gyroscope, an ultra-wideband (UWB) instrument, a total station, etc., which can detect the displacement and acceleration of an object, so as to detect the swing direction of the load-bearing device 120. Advantageously, the sling 100 further includes a controller (not shown), which may be provided on the lifting device 110, and the controller may receive the posture information detected by the posture detection device 122, and send instructions to the motor 133 and the steering gear 140 in a wired or wireless manner. When the controller receives the posture information of the carrying device 120 sent by the posture detection device 122, it can send instructions to the motor 133 and the servo 140 according to the posture information, so that the corresponding motor 133 drives the winch 131 to rotate and the corresponding servo 140 to swing, so that the rope 132 on the side of the carrying device 120 opposite to the swinging direction is contracted, thereby providing the carrying device 120 with a pulling force opposite to the swinging direction, eliminating the swinging of the carrying device 120.

[0041] Advantageously, the sling 100 according to the principles of the present application can be arranged on an aircraft, in particular, an unmanned aircraft for transportation or aerial photography, etc. Advantageously, the sling 100 according to the principles of the present application can also be arranged on a lifting device, such as a bridge lifting device, a gantry lifting device, a stacking lifting device, a boom lifting device, a floating lifting device, or a mast lifting device, etc.

[0042] The method for eliminating the swing of the sling of the present application includes the following steps: first, the swing direction of the sling is detected, and then, according to the swing direction of the sling, the length of the rope on the side opposite to the swing direction of the sling is contracted by a winch, thereby providing a pulling force opposite to the swing direction to eliminate the swing. Advantageously, while the rope length is contracted by the winch, the rope length can also be slightly lengthened by the steering gear to avoid the contracted rope being too long due to the minimum rotation angle of the winch, thereby affecting the effect of eliminating the swing. Advantageously, a posture detection device and a controller can be provided for the sling, wherein the posture detection device can detect the swing direction of the sling and send the swing direction information to the controller, and the controller can send corresponding instructions to the winch and the steering gear after analyzing the swing direction information, so that they can contract the appropriate rope length, thereby accurately eliminating the swing.

[0043] The sling according to the principle of the present application, the aircraft or lifting equipment including the sling, and the method for eliminating the swing of the sling can accurately control the retraction and release of the rope through the winch, and the cooperation between the winch and the steering gear, effectively eliminating the swing of the sling with different amplitudes, especially the swing of a small amplitude. At the same time, because the sling according to the principle of the present application is provided with a posture detection device and a controller, it is possible to realize real-time detection and automatic control of the posture of the sling, shorten the response time, and do not require manual operation, so that the swing of the sling can be eliminated quickly, accurately and conveniently.

[0044] Although at least one exemplary embodiment is described in the foregoing detailed description, it should be understood that there are a large number of variations. It should also be understood that an exemplary embodiment or multiple exemplary embodiments described herein are merely examples and are not intended to limit the scope, applicability or configuration of the present application in any way. On the contrary, the foregoing detailed description will provide convenient guidance for those skilled in the art to implement an exemplary embodiment or multiple exemplary embodiments. It should be understood that various changes, modifications or changes, etc. can be made to the functions and arrangements of elements without departing from the scope of the present application as set forth in the attached claims and their equivalents.

Claims

1. A sling, characterized in that: The lifting device includes a lifting device and a carrying device, wherein the lifting device is provided with a plurality of winch units, the winch unit includes a winch, a rope and a motor, the motor is connected to the winch to drive the winch to rotate, one end of the rope is wound around the winch, and the other end is connected to the carrying device.

2. The sling according to claim 1, characterized in that: The bearing device is provided with a steering gear corresponding to each winch unit, and the steering disc of the steering gear is provided with a first through hole, and the rope passes through the first through hole to be connected with the bearing device.

3. The sling according to claim 2, characterized in that: The bearing device is provided with a steering gear support, and the steering gear is installed on the steering gear support.

4. The sling according to claim 3, characterized in that: The steering gear support is provided with a waist-shaped hole, and the steering disc extends into the waist-shaped hole and can swing in the waist-shaped hole.

5. The sling according to claim 4, characterized in that: A second through hole is provided on the top of the steering gear support, the second through hole is communicated with the waist-shaped hole, and the rope passes through the second through hole.

6. The sling according to claim 5, characterized in that: The second through hole is provided with a lining.

7. The sling according to claim 6, characterized in that: The liner is made of ceramic material.

8. The sling according to claim 7, characterized in that: The winch unit further comprises a pulley, the pulley is mounted on a pulley seat, and a surface of the pulley is provided with a groove surrounding the pulley, and the rope passes through the groove.

9. The sling according to claim 8, characterized in that: The groove is a V-shaped groove.

10. The sling according to claim 9, characterized in that: The carrying device is provided with a mounting hole.

11. The spreader according to any one of claims 2 to 10, characterized in that: The carrying device is provided with a posture detection device so as to detect the posture of the carrying device.

12. The sling according to claim 11, characterized in that: The utility model also comprises a controller, and the controller can control the rotation of the winch and the swing of the steering wheel.

13. An aircraft, characterized in that: The aircraft comprises the sling according to any one of claims 1-12.

14. A lifting device, characterized in that: The lifting equipment comprises a sling as described in any one of claims 1-12.

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