Movable mechanical wind collecting device
By designing a mobile mechanical wind-gathering device, and utilizing pulley blocks and movable trolleys, the safety risks of manual wind-gathering and the poor effectiveness of mechanical wind-gathering under high wind speeds on offshore wind power installation platforms were solved, achieving full-process mechanical wind-gathering and improving the stability and safety of hoisting.
Patent Information
- Application Number
- CN202423131984.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-18
AI Technical Summary
There are safety risks associated with manual wind jacking on existing offshore wind power installation platforms under high wind speed conditions. Furthermore, existing mechanical wind jacking devices are not very effective in the initial lifting stage and require manual assistance, which affects operational safety and efficiency.
Design a mobile mechanical wind-gathering device, which uses wind-gathering ropes, winches, pulley blocks and movable trolleys. By combining pulley blocks and movable trolleys, the entire process of mechanical wind-gathering can be achieved, avoiding manual intervention, ensuring the guidance of the wire rope and preventing tangling.
The entire process was automated with wind control, which improved hoisting stability and safety, reduced manual intervention time, increased operational efficiency and safety, and reduced the risk of wire rope entanglement and wear.
Smart Images
Figure CN223561165U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to large -scale crane field especially a movable mechanical wind device for offshore wind power hoisting platform crane. BACKGROUND
[0002] Offshore wind power generation projects present the trend of large -scale equipment, development of far sea, etc, which puts forward higher requirements for the wind system of offshore wind power installation platform. The existing offshore wind power installation platform usually adopts the cargo hook on both sides of the jib as the mechanical wind, and the wind effect is poor when the wind speed is high because the cargo hook steel wire rope is stretched out for a long distance in the early stage of lifting. There is a certain safety risk. At present, the composite wind method of manual wind + mechanical wind is usually adopted, that is, manual wind is used to control the lifting object in the early stage of lifting, and the manual wind is removed after the mechanical wind plays a role in lifting. Manual wind needs to allocate a large amount of manpower in other processes, and manual wind needs to reflect the time to control the blade when facing strong gust, and there is a certain safety risk in the rotation of the blade within the reaction time. SUMMARY
[0003] The utility model solves the technical problem to provide a movable mechanical wind device, which not only liberates manual work and realizes the whole lifting process without manual wind intervention, but also improves the wind effect, increases the stability of the lifting object, and effectively reduces the safety risk on site.
[0004] To solve the above technical problems, the utility model adopts the technical scheme of:
[0005] A movable mechanical wind device, comprising a wind rope, a winch, a pulley block and a movable trolley, one end of the wind rope is installed on the winch, the other end is fixed on the edge of the crane maintenance platform after passing through the pulley block on the jib, the wind rope forms a loop on the jib, a movable trolley is slidably arranged on the loop, and the movable trolley is connected with the lifting appliance.
[0006] The pulley block comprises first guide pulleys arranged at the upper and lower ends of the top surface of the jib, second guide pulleys arranged at the upper and lower ends of the bottom surface of the jib, and transition pulleys arranged between the two first guide pulleys, and the transition pulleys are arranged in multiple groups.
[0007] The movable trolley is provided with a first pulley and a second pulley, and the wind rope passes through the wheel groove of the first pulley and the second pulley.
[0008] The movable trolley is connected with the lifting appliance through a traction rope.
[0009] The fixed end of the wind rope is connected with a heavy pressure head, a base is fixed on the corresponding crane maintenance platform, and the heavy pressure head is rotatably installed on the base through a pin shaft.
[0010] The utility model provides a movable mechanical wind device, has the following technical effects:
[0011] 1), relative to the current wind device, this device avoids the phenomenon that manual wind is needed to assist in the initial stage of hoisting.
[0012] 2), the movable trolley in the device is provided with a first pulley and a second pulley, which can guide the steel wire rope while avoiding derailment of the steel wire rope.
[0013] 3), the device is improved on the basis of the existing crane, and is high in operability and economic benefit.
[0014] 4), the steel wire rope loop part prone to winding is separated by using the jib and multiple guide pulleys, so that winding of the steel wire rope and abrasion of the steel wire rope are avoided.
[0015] 5), the fixing position of the steel wire rope adopts a pin shaft rotatable connection mode to adapt to angle conversion of the steel wire rope. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model will be further described below in combination with the drawings and examples:
[0017] Figure 1 It is the initial stage diagram of the utility model hoisting.
[0018] Figure 2 It is the late stage diagram of the utility model hoisting.
[0019] Figure 3 It is Figure 2 The local enlarged diagram of A in the middle.
[0020] Figure 4 It is Figure 2 The local enlarged diagram of B in the middle.
[0021] Figure 5 It is the diagram of the first guide pulley.
[0022] In the drawing: crane maintenance platform 1, jib 2, wind rope 3, transition pulley 4, first guide pulley 5, second guide pulley 6, winch 7, lifting appliance 8, movable trolley 9, traction steel wire rope 10, fixed base 11, pin shaft 12, U-shaped plate 13. DETAILED DESCRIPTION
[0023] For example, Figures 1-4As shown, a movable mechanical wind catching device includes a winch 7, a wind catching rope 3, a guide pulley group, a transition pulley group and a movable trolley 9. The winch 7 is arranged at the crane maintenance platform 1 on both sides of the boom 2, the guide pulley group includes a first guide pulley 5 and a second guide pulley 6, the first guide pulley 5 is arranged at the upper and lower ends of the top surface of the boom 2, and the second guide pulley 6 is arranged at the upper and lower ends of the bottom surface of the boom 2. A plurality of transition pulleys 4 are arranged between the two first guide pulleys 5, and the plurality of transition pulleys 4 form a transition pulley group. The hoist 8 is connected with the movable trolley 9 through a traction rope 10 (steel wire rope) on one side. The two ends of the wind catching rope 3 are divided into a movable end a and a fixed end b, the movable end a of the wind catching rope 3 is connected with the winch 7, the wind catching rope 3 extends upwards and passes through the second guide pulley 6 at the lower part of the boom 2 and the first guide pulley 5, then passes through the plurality of transition pulleys 4, then changes direction through the first guide pulley 5 and the second guide pulley 6 at the upper part of the boom 2, and then extends downwards through the movable trolley 9, and the fixed end b of the wind catching rope 3 is fixed to the edge of the crane maintenance platform 1, forming a steel wire rope loop.
[0024] By adopting the steel wire rope loop + movable trolley, the wind catching rope 3 is looped after passing through the boom 2, the wind catching rope 3 from the top end of the boom 2 to the fixed end b is used as a mechanical wind catching rope, and the movable trolley 9 is arranged on the wind catching rope 3, the movable trolley 9 can keep consistent with the lifting of the hoisted object, and the wind catching effect is ensured.
[0025] Preferably, the top of the first guide pulley 5 and the second guide pulley 6 is provided with a U-shaped plate 13, and the U-shaped plate 13 can prevent the steel wire rope from derailing after installation.
[0026] Preferably, the movable trolley 9 is provided with a first pulley and a second pulley, wherein the first pulley is a large pulley, the second pulley is a small pulley, the first pulley and the second pulley are arranged side by side, and the wind catching rope 3 passes through the groove of the first pulley and the second pulley.
[0027] By adopting two groups of pulleys with large and small sizes, the large pulley mainly ensures the up and down sliding of the movable trolley and bears the tension of the steel wire rope, and the small pulley is used to prevent the steel wire rope from derailing in the groove of the large pulley.
[0028] Preferably, the grooves of the first pulley and the second pulley are of the same specification, which ensures the normal movement of the movable trolley 9 and reduces the abrasion of the wind catching rope 3.
[0029] Preferably, the fixed end b of the wind rope 3 adopts a heavy pressure head with a pressure head hole. A base 11 is welded at the fixed position, and the base 11 is arranged between two U-shaped plates with a distance slightly larger than the thickness of the heavy pressure head. A hole is opened on the U-shaped plate, the heavy pressure head is placed between the two U-shaped plates, and the pin shaft 12 is positioned through the two U-shaped plates and the two ends of the heavy pressure head. In this way, the heavy pressure head can rotate relative to the base 11, so that the fixed end b of the wind rope 3 can rotate after the installation of the wind rope 3 (steel wire rope), thereby adapting to different angle changes.
[0030] The winch 7 is provided with a torque sensor, which can be used to monitor the tension of the steel wire rope and prevent the steel wire rope from being damaged due to excessive tension.
[0031] Working principle and process:
[0032] 1) After the wind rope 3 extends from the winch 7, it passes through the second guide pulley 6 and the first guide pulley 5 at the lower part of the boom 2, and extends from the bottom surface of the boom 2 to the top surface of the boom 2; and passes through the transition pulley 4 at the top surface of the boom 2 to reach the top of the boom 2; then passes through the first guide pulley 5 and the second guide pulley 6 again to extend the wind rope 3 from the top surface to the bottom surface of the boom, and extend the wind rope 3 along the bottom surface to the fixed position below the winch 7, and the two steel wire ropes do not affect each other. The two wind ropes 3 of the loop are respectively arranged on the top surface and the bottom surface of the boom 2, and do not interfere with each other in the wind or slack state. During lifting, the wind rope 3 on the top surface of the boom 2 is tightened by the winch 7, so that the wind rope 3 always maintains tension, solving the problem of mutual collision of the steel wire rope loop in the slack state.
Claims
1. A portable mechanical air conditioning device, characterized by: The crane maintenance platform (1) comprises a wind rope (3), a winch (7), a pulley block and a movable trolley (9); one end of the wind rope (3) is installed on the winch (7), and the other end is fixed to the edge of the crane maintenance platform (1) after passing through the pulley block on the jib (2); the wind rope (3) forms a loop on the jib (2); the movable trolley (9) is arranged on the loop in sliding mode, and the movable trolley (9) is connected with the lifting tool (8).
2. A mobile mechanical air curtain device according to claim 1, wherein: The pulley block comprises first guide pulleys (5) arranged at the upper and lower ends of the top surface of the jib (2), second guide pulleys (6) arranged at the upper and lower ends of the bottom surface of the jib (2), and transition pulleys (4) arranged between the two first guide pulleys (5), wherein the transition pulleys (4) are arranged in multiple groups in an interval mode.
3. A mobile mechanical air curtain device as claimed in claim 1, wherein: The movable trolley (9) is provided with a first pulley and a second pulley, and the wind rope (3) passes through the wheel grooves of the first pulley and the second pulley.
4. A mobile mechanical air curtain device according to claim 3, wherein: The movable trolley (9) is connected with the lifting tool (8) through a traction rope (10).
5. A mobile mechanical air curtain device as claimed in claim 1, wherein: The fixed end of the wind rope (3) is connected with a heavy pressing head, a base (11) is fixed on the crane maintenance platform (1) correspondingly, and the heavy pressing head is rotatably installed on the base (11) through a pin shaft.