Obstacle crossing device

Abstract

The utility model provides an obstacle crossing device which comprises a fixed seat, a cargo boom and a lifting ring, and the fixed seat is arranged at the top of an obstacle; the cargo boom is rotatably arranged on the fixed seat; the lifting ring is connected with the cargo boom, and the lifting ring is used for hanging a lifting machine. Therefore, heavy yaw speed reducer components can be easily handled, efficient hoisting is achieved, and the difficulty and low efficiency of manual carrying are avoided.

Description

Technical Field

[0001] This application belongs to the technical field of hoisting machinery, and particularly relates to an obstacle-crossing device. Background Art

[0002] During the equipment maintenance and renewal of wind farms, it is often necessary to replace the damaged yaw speed reducer of the wind turbine. The total weight of the yaw speed reducer is about 500 kg, and the heaviest part reaches about 350 kg after disassembly. During the replacement operation, the damaged component needs to be transferred from the rear of the nacelle to the front of the elastic support of the gearbox for replacement and installation. However, due to the extremely narrow space between the nacelle and the elastic support, the components cannot pass directly through. At the same time, restricted by this space, the components to be replaced cannot be safely carried by manpower.

[0003] Therefore, there is an urgent need for an obstacle-crossing device to achieve precise hoisting and safe obstacle crossing of heavy components, ensuring the smooth progress of the replacement operation of the wind turbine yaw speed reducer. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by this application is to provide an obstacle-crossing device to achieve precise hoisting and safe obstacle crossing of heavy components such as the wind turbine yaw speed reducer in a narrow space.

[0005] To solve the above problems, this application provides an obstacle-crossing device, including:

[0006] A fixed seat, which is arranged on the top of the obstacle;

[0007] A boom, which is rotatably arranged on the fixed seat;

[0008] A lifting ring, which is connected to the boom and is used for hanging a hoisting machine.

[0009] Optionally, the boom includes:

[0010] A column, which is vertically arranged on the fixed seat;

[0011] A cantilever, one end of which is connected to the column and the other end extends in a direction away from the column.

[0012] Optionally, the lifting ring is movably arranged on the cantilever.

[0013] Optionally, the obstacle-crossing device further includes:

[0014] A sliding seat, a guide rail is arranged on the cantilever, the guide rail extends in the same direction as the cantilever, the sliding seat is slidably arranged on the guide rail, and the lifting ring is relatively fixed to the sliding seat.

[0015] Optionally, the length of the column along the axial direction of the column is adjustable.

[0016] Optionally, the column includes a plurality of long rods, both ends of which are respectively provided with a male port and a female port, and the male port of the long rod is connected to the female port of another section of the long rod.

[0017] Optionally, a rotating drum is provided on the fixing seat, and the bottom of the column is connected to the rotating drum.

[0018] Optionally, a stabilizing plate is provided on the circumferential outer side of the rotating drum, and the stabilizing plate is connected to the fixing seat.

[0019] Optionally, at least four stabilizing plates are provided, and at least four stabilizing plates are evenly arranged along the circumferential direction of the drum.

[0020] Optionally, a yielding portion is provided on the fixing seat so that the fixing seat fits against the top surface of the obstacle.

[0021] Beneficial Effects

[0022] The obstacle crossing device provided in the embodiment of the utility model can easily handle heavy yaw reducer components, realize efficient lifting, and avoid the difficulty and inefficiency of manual handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an obstacle surmounting device according to an optional embodiment of the present application;

[0024] Figure 2 This is a schematic structural diagram of a lifting arm of an optional embodiment of the present application;

[0025] Figure 3 This is a schematic structural diagram of a fixing base of an optional embodiment of the present application;

[0026] Figure 4 This is an application scenario diagram of an obstacle surmounting device of an optional embodiment of the present application;

[0027] Figure 5 A top view of an obstacle according to an optional embodiment of the present application.

[0028] The reference numerals are:

[0029] 1. Fixed seat; 11. Give way; 2. Lifting arm; 21. Column; 22. Cantilever; 3. Lifting ring; 4. Sliding seat; 5. Rotating drum; 6. Stabilizing plate; 7. Obstacle. DETAILED DESCRIPTION

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] In the present application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The preferred embodiments of the present utility model will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model and are not used to limit the present utility model.

[0034] Referring to Figures 1 to 5 As shown, according to an embodiment of the present application, an obstacle-crossing device is provided, including: a fixed seat 1, the fixed seat 1 is arranged on the top of an obstacle 7; a boom 2, the boom 2 is rotatably arranged on the fixed seat 1; a lifting ring 3, the lifting ring 3 is connected to the boom 2, and the lifting ring 3 is used for hanging a hoisting machine.

[0035] Among them, the fixed seat 1 has a planar structure, with sufficient stability and load-bearing capacity, and can serve as the support platform for the lifting arm 2 to support the entire obstacle-crossing device and the heavy object to be lifted. It can be understood that, on the one hand, the planar structure makes the contact area between the fixed seat 1 and the top of the obstacle 7 relatively large, which can better disperse the pressure generated during the lifting process, thereby reducing the local pressure on the obstacle 7 and reducing the risk of damage to the obstacle 7; on the other hand, the fixed seat 1 with a planar structure is relatively simple in the manufacturing and processing process, with low cost, and is also convenient for installation and maintenance.

[0036] Specifically, the fixed seat 1 is arranged on the top of the obstacle 7 to ensure that during the lifting process, the obstacle-crossing device will not shake or tilt due to external forces, ensuring the safety of the lifting. It can be understood that when the fixed seat 1 has a planar structure and is arranged on the top of the obstacle 7, regardless of whether the top surface of the obstacle 7 is a plane, a curved surface or an irregular shape, the bottom of the fixed seat 1 can contact it to a certain extent and adapt to different top surface contours through its own shape adjustment, providing stable support for the lifting arm 2 and the lifting ring 3, and ensuring stable lifting operations can be carried out even in narrow spaces.

[0037] Among them, the lifting arm 2 is made of high-strength metal materials, such as alloy steel, etc., and can serve as the lifting arm of the obstacle-crossing device, providing a support and position-adjusting platform for the lifting ring 3.

[0038] Specifically, the lifting arm 2 is rotatably arranged on the fixed seat 1. It can be understood that due to the rotatability of the lifting arm 2, in actual operation, the angle can be adjusted according to different lifting requirements and the position of the obstacle 7. For example, in a narrow space, the lifting arm 2 can find the best lifting angle by rotating, avoiding the surrounding obstacles 7, ensuring the smooth progress of the lifting process, and achieving safe obstacle crossing. At the same time, this rotatable characteristic also enables the lifting arm 2 to cover a larger working range, improving the versatility and practicality of the obstacle-crossing device.

[0039] Among them, the lifting ring 3 is used to connect the lifting machinery to the lifting arm 2, so that the lifting machinery can carry out lifting operations under the drive of the lifting arm 2, ensuring that the lifting machinery will not fall off or shake during the lifting process.

[0040] Among them, the lifting machinery can be a sling or a light and small lifting device, such as an electric hoist.

[0041] Specifically, when the lifting machinery is a sling, the sling passes through the lifting ring 3, and both ends of the sling are connected to the heavy object to be lifted; when the lifting machinery is an electric hoist, the electric hoist is hung on the lifting ring 3, and the chain of the electric hoist is connected to the heavy object to be lifted.

[0042] Among them, in this embodiment, the hoisting machinery is a light and small lifting device. Compared with the sling, the light and small lifting device usually has a higher lifting capacity and can meet the hoisting requirements of heavier items.

[0043] Specifically, in this embodiment, the obstacle-crossing device can easily handle heavy yaw reducer components. The lifting ring 3 of the obstacle-crossing device can be suspended from the hoisting machinery. For yaw reducer components with a total weight of about 500 kg and a maximum weight of about 350 kg after disassembly, efficient hoisting can be achieved, avoiding the difficulties and low efficiency of manual handling.

[0044] In some possible embodiments provided by the present application, refer to Figure 1 and Figure 2 As shown, the boom 2 includes: a column 21, which is vertically arranged on the fixed seat 1; a cantilever 22, one end of the cantilever 22 is connected to the column 21, and the other end extends in a direction away from the column 21.

[0045] Among them, the column 21 is the main supporting part of the boom 2 and has the function of transmitting the weight of the entire boom 2 and the hoisted heavy object to the fixed seat 1.

[0046] Specifically, the column 21 forms a 90-degree angle with the plane where the fixed seat 1 is located, providing stable vertical support for the entire boom 2. This vertical structure enables the boom 2 to effectively transmit the force to the fixed seat 1 when hoisting heavy objects, reducing the swaying and tilting of the boom 2 and improving the stability of the entire obstacle-crossing device.

[0047] Among them, the cantilever 22 is the main working part of the boom 2 and is used to carry the lifting ring 3 and the hoisting machinery.

[0048] Specifically, one end of the cantilever 22 is connected to the column 21, and the connection method can be welding, bolt connection or other reliable connection methods. The other end of the cantilever 22 extends in a direction away from the column 21, enabling the boom 2 to cover a larger working range, so that hoisting operations can be carried out in a wider area.

[0049] In some possible embodiments provided by the present application, the lifting ring 3 is movably arranged on the cantilever 22.

[0050] It should be noted that in this application, the lifting ring 3 can move on the cantilever 22. First, the operator can accurately adjust the lifting ring 3 to the optimal position according to the actual lifting requirements, so as to more precisely align with the heavy object to be lifted, significantly improving the accuracy and efficiency of lifting. Second, when facing heavy objects to be lifted with different shapes and sizes, by moving the lifting ring 3, the most suitable lifting point can be found, effectively ensuring that the heavy object to be lifted remains balanced and stable during the lifting process, reducing the risk of shaking and tilting. Third, when in a narrow space or when there are obstacles 7 around, the movable lifting ring 3 can help the boom 2 better adapt to the environment, and avoid the obstacles 7 by adjusting its position, thus achieving safe obstacle crossing and smooth lifting. In addition, the mobility of the lifting ring 3 on the cantilever 22 greatly expands the effective working range of the boom 2, enabling the lifting operation to be carried out at different positions rather than being limited to a few fixed points, thereby enhancing the versatility and practicality of the obstacle-crossing device. Moreover, by moving the lifting ring 3, the heavy object to be lifted can be lifted from different angles, meeting the requirements of various complex lifting scenarios and providing the operator with more choices of lifting schemes. At the same time, the movable lifting ring 3 can be adjusted to the most suitable position according to the weight and distribution of the heavy object to be lifted, making the forces on the boom 2 and the fixed seat 1 more uniform and reasonable, reducing the phenomenon of local stress concentration, and lowering the possibility of equipment damage and accidents. Finally, during the lifting process, the position of the lifting ring 3 can be adjusted in real time according to the actual situation to maintain the balance and stability of the heavy object to be lifted, reducing the shaking and instability caused by problems such as center-of-gravity deviation, and further improving the safety of lifting.

[0051] In the above embodiment, referring to Figure 1 As shown, the obstacle-crossing device further includes: a sliding seat 4. A guide rail is provided on the cantilever 22, and the guide rail extends in the same direction as the cantilever 22. The sliding seat 4 is slidably arranged on the guide rail, and the lifting ring 3 is relatively fixed to the sliding seat 4.

[0052] Among them, the sliding seat 4 is slidably arranged on the guide rail, and the guide rail provides a stable moving path for the sliding seat 4. It restricts the moving direction of the sliding seat 4, ensuring that the sliding seat 4 can only move along the direction of the guide rail without deviation or shaking.

[0053] Specifically, the length of the guide rail is approximately the same as the length of the cantilever 22, and its extending direction is the same as the length direction of the cantilever 22, enabling the sliding seat 4 to move within the entire length range of the cantilever 22, thereby expanding the movable range of the lifting ring 3. At the same time, the guide rail provides a clear moving path for the sliding seat 4, preventing the lifting ring 3 from shaking, deviating or moving irregularly during the movement, ensuring that the lifting ring 3 always moves along the direction of the cantilever 22, and thus improving the accuracy of the movement. In a narrow space or in the case of requiring precise operation, this accuracy can greatly improve the efficiency and safety of lifting.

[0054] The lifting ring 3 is fixedly connected to the slide 4, so that the lifting ring 3 can move with the movement of the slide 4, and the operator can adjust the position of the lifting ring 3 by moving the slide 4, so as to better adapt to different lifting requirements.

[0055] In some possible embodiments provided in the present application, the length of the column 21 along the axial direction of the column 21 is adjustable.

[0056] It should be noted that in different lifting scenarios, the height of the obstacle 7 and the height requirements of the heavy object to be lifted may be different. The length-adjustable column 21 can be adjusted according to the actual situation, so that the obstacle-crossing device can adapt to obstacles 7 of various heights and lifting tasks, thereby improving the versatility and flexibility of the device. At the same time, by changing the length of the column 21, the height position of the cantilever 22 can be adjusted. This helps to find the best lifting angle, so that the lifting ring 3 can be more accurately aligned with the heavy object to be lifted, reduce shaking and instability during the lifting process, and improve the accuracy and efficiency of the lifting.

[0057] In the above embodiments, see Figure 1 and Figure 2 As shown, the column 21 includes a plurality of long rods, both ends of which are provided with a male port and a female port, and the male port of the long rod is connected to the female port of another long rod.

[0058] The column 21 includes a plurality of long poles, and different numbers of long poles can be assembled according to the height of the obstacle 7 and the height of the heavy object to be hoisted, so as to adapt to obstacles 7 of various heights and hoisting tasks.

[0059] Specifically, one end of the long rod is set as a male port, and the other end is set as a female port. The male port of one long rod is embedded in the female port of another long rod, and multiple sections of long rods are assembled in sequence through the matching connection of the male and female ports.

[0060] Among them, a connecting pin and an anti-dropout pin are provided on the column 21. The connecting pin 6 passes through the male and female openings of the long rod. The anti-dropout pin is connected to the connecting pin. The anti-dropout pin limits the connecting pin in the radial direction of the column 21.

[0061] Specifically, as an embodiment, the anti-dropout pin is sleeved on the connecting pin; as another embodiment, a through hole is opened in the radial direction of the connecting pin, and the anti-dropout pin passes through the connecting pin through the through hole. It can be understood that by providing the connecting pin, the connecting pin can be limited in the radial direction of the column 21 to prevent the connecting pin from falling out of the through hole of the long rod, and to prevent the assembled column 21 from being disjointed.

[0062] In some possible implementations provided in this application, see Figure 1 and Figure 3As shown, a rotating cylinder 5 is provided on the fixed base 1, and the bottom of the vertical column 21 is connected to the rotating cylinder 5.

[0063] It should be noted that in this application, the setting of the rotating cylinder 5 enables the vertical column 21 to freely rotate 360 degrees on the fixed base 1, improving the flexibility of the lifting arm 2. This allows the operator to easily adjust the direction of the lifting arm 2 according to different lifting requirements and the position of the obstacle 7 without moving the entire obstacle-crossing device, thereby improving work efficiency. At the same time, in a narrow space or a complex working environment, the optimal lifting angle can be quickly found to avoid the obstacle 7, achieving safe obstacle crossing and smooth lifting. For example, when it is necessary to lift a heavy object to be lifted from one corner to another corner, the rotation function of the vertical column 21 can quickly adjust the direction of the lifting arm 2 without the need for cumbersome equipment movement and repositioning.

[0064] Among them, the bottom of the vertical column 21 can be inserted into the rotating cylinder 5.

[0065] Specifically, the rotating cylinder 5 is a hollow structure, and a slewing bearing is provided inside the rotating cylinder 5. The inner ring of the slewing bearing is connected to the vertical column 21.

[0066] In some possible embodiments provided by this application, refer to Figure 1 and Figure 3 As shown, a stabilizing plate 6 is provided on the outer circumference of the rotating cylinder 5, and the stabilizing plate 6 is connected to the fixed base 1.

[0067] It should be noted that in this application, by adding the stabilizing plate 6, the rotating cylinder 5 can better bear the pressure from the vertical column 21, the lifting arm 2, and the heavy object to be lifted, improving the load-bearing capacity of the entire obstacle-crossing device and enabling it to adapt to heavier lifting tasks.

[0068] Among them, the stabilizing plate 6 can be a triangular plate, which can effectively disperse the pressure and evenly transfer the pressure borne by the rotating cylinder 5 from the vertical column 21, the lifting arm 2, and the heavy object to be lifted to the fixed base 1.

[0069] Specifically, the stabilizing plate 6 is a right-angled triangular plate, and the two right-angled sides of the right-angled triangular plate are respectively connected to the outer wall of the rotating cylinder 5 and the top surface of the fixed base 1.

[0070] In some possible embodiments provided by this application, refer to Figure 1 and Figure 3 As shown, at least four stabilizing plates 6 are provided, and at least four stabilizing plates 6 are evenly arranged along the circumferential direction of the rotating cylinder 5.

[0071] It should be noted that setting at least four stabilizing plates 6 can provide support for the rotating cylinder 5 from multiple directions. When lifting heavy objects, the pressure generated by the upright column 21, the boom 2, and the heavy object to be lifted will be transmitted to the fixed seat 1 through the rotating cylinder 5. The multiple stabilizing plates 6 can evenly distribute this pressure, preventing the local stress on the rotating cylinder 5 from being too large, which may cause deformation or damage. At the same time, the at least four stabilizing plates 6 are evenly arranged, which can enhance the strength of the entire structure. The connection between the stabilizing plates 6, the rotating cylinder 5, and the fixed seat 1 forms a more stable support system, which can resist greater external forces and improve the reliability of the obstacle-crossing device in harsh working environments.

[0072] Among them, for example, when four stabilizing plates 6 are provided, the interval angle between two adjacent stabilizing plates 6 is 90 degrees; when five stabilizing plates 6 are provided, the interval angle between two adjacent stabilizing plates 6 is 72 degrees; when six stabilizing plates 6 are provided, the interval angle between two adjacent stabilizing plates 6 is 60 degrees.

[0073] In some possible embodiments provided by the present application, as shown in Figure 3 、 Figure 4 and Figure 5 a relief portion 11 is provided on the fixed seat 1 so that the fixed seat 1 fits the top surface of the obstacle 7.

[0074] It should be noted that in the present application, the provision of the relief portion 11 enables the fixed seat 1 to give way to other protruding parts such as bolts on the top surface of the obstacle 7, so as to better adapt to the shape of the top surface of the obstacle 7 and increase the contact area between the fixed seat 1 and the top surface of the obstacle 7. A larger contact area means that the fixed seat 1 can be placed more stably on the obstacle 7, reducing the shaking and displacement caused by external forces during the lifting process. At the same time, the risk of local stress concentration is reduced, the possibility of damage to the obstacle 7 is reduced, and the overall stability of the obstacle-crossing device is improved.

[0075] In some specific examples, the relief portion 11 is a groove-type relief portion 11. Specifically, a number of grooves with different depths and widths are provided on the fixed seat 1. When there are protruding objects such as bolts on the top surface of the obstacle 7, these grooves can accommodate the bolts, enabling the bottom surface of the fixed seat 1 to fit the top surface of the obstacle 7 as large as possible.

[0076] In other specific examples, the relief portion 11 is an arc-shaped recessed relief portion 11. If there is an arc-shaped protruding part on the top surface of the obstacle 7, a corresponding arc-shaped recessed relief portion 11 can be provided on the fixed seat 1. For example, on some obstacles 7 with an arched structure, the arc-shaped recess can perfectly fit the arched part, increasing the contact area between the fixed seat 1 and the obstacle 7 and improving the stability.

[0077] Specifically, in this embodiment, the fixed seat 1 is fixedly connected to the obstacle 7 by bolts, and the top surface of the obstacle 7 is the upper surface of the bolts.

[0078] Those skilled in the art can easily understand that on the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0079] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and modifications can be made without departing from the technical principle of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. An obstacle crossing device, characterized in that: include: A fixing seat (1), wherein the fixing seat (1) is arranged on the top of the obstacle (7); A lifting arm (2), wherein the lifting arm (2) is rotatably arranged on the fixing seat (1); A lifting ring (3), the lifting ring (3) is connected to the lifting arm (2), and the lifting ring (3) is used to suspend the lifting machinery.

2. The obstacle surmounting device according to claim 1, characterized in that: The lifting arm (2) comprises: A column (21), wherein the column (21) is vertically arranged on the fixing seat (1); A cantilever (22), one end of the cantilever (22) is connected to the column (21), and the other end of the cantilever (22) extends in a direction away from the column (21).

3. The obstacle surmounting device according to claim 2, characterized in that: The lifting ring (3) is movably arranged on the cantilever (22).

4. The obstacle surmounting device according to claim 3, characterized in that: The obstacle crossing device also includes: A slide seat (4), a guide rail is arranged on the cantilever (22), the guide rail and the cantilever (22) extend in the same direction, the slide seat (4) is slidably arranged on the guide rail, and the lifting ring (3) and the slide seat (4) are relatively fixed.

5. The obstacle surmounting device according to claim 2, characterized in that: The length of the column (21) along the axial direction of the column (21) is adjustable.

6. The obstacle surmounting device according to claim 5, characterized in that: The upright column (21) comprises a plurality of long rods, both ends of which are respectively provided with a male port and a female port, and the male port of the long rod is connected to the female port of another section of the long rod.

7. The obstacle surmounting device according to claim 2, characterized in that: A rotating drum (5) is arranged on the fixing seat (1), and the bottom of the upright column (21) is connected to the rotating drum (5).

8. The obstacle surmounting device according to claim 7, characterized in that: A stabilizing plate (6) is provided on the circumferential outer side of the rotating drum (5), and the stabilizing plate (6) is connected to the fixing seat (1).

9. The obstacle surmounting device according to claim 8, characterized in that: At least four stabilizing plates (6) are provided, and at least four stabilizing plates (6) are evenly arranged along the circumferential direction of the rotating drum (5).

10. The obstacle surmounting device according to claim 1, characterized in that: The fixing seat (1) is provided with a giving way portion (11) so that the fixing seat (1) is in contact with the top surface of the obstacle (7).

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