Automatic adjusting device for chord difference of pile leg chord tube of wind power platform lifting system

Abstract

The utility model discloses a wind power platform lifting system pile leg chord tube chord difference automatic adjusting device which is used for adjusting chord difference of chord tube assemblies on a pile leg in an automatic compensation mode and comprises three sets of detection assemblies which are detachably connected to the three chord tube assemblies of the pile leg, matched with the chord tube assemblies and used for detecting the chord difference of the chord tube assemblies. And the compensation unit is arranged in the wind power platform lifting system, is in communication protocol connection with the detection assembly and is used for receiving the real-time measurement value which is transmitted by the detection assembly and represents the chord difference. And the pile leg is driven to ascend or descend in a speed compensation mode. The detection assembly automatically senses the chord difference of the chord tubes along with the movement of the chord tubes, reflects the influence of geology on different chord tubes and transmits the chord difference to the compensation unit in an electric signal or network communication mode, the compensation unit outputs compensation amount according to the chord difference to drive the pile leg to move up and down, and automatic chord difference detection and automatic adjustment are achieved. Frequent alarming and stopping of the whole system are reduced or even avoided, and manual operation adjustment is replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of pile leg chord pipe adjustment, in particular to a pile leg chord pipe chord difference automatic adjustment device for a wind power platform lifting system. Background Art

[0002] The pile leg refers to the cylindrical or truss structure that supports the upper structure of the platform on the seabed and uses a lifting device to lift it. It accounts for a large proportion of the self-elevating drilling platform, especially in deep-water wind power installation. Once it is damaged, it will lead to serious consequences. In order to ensure the working safety of the drilling platform, it is particularly important to carry out damage detection, health monitoring and safety evaluation research on it.

[0003] In the prior art, the invention patent with application number CN201810528009.8 discloses a truss-type pile-leg liftable drilling platform model experimental device, pile legs, hull, lifting transmission and locking mechanism, cantilever beam, loading accessories, platform; the pile legs are fixed on the platform, pile leg holes are provided on the hull, the lifting transmission and locking mechanism are fixed in pairs at the pile leg holes on the hull, the lifting transmission and locking mechanism includes a support frame, the upper end of the support frame has a gear groove, the two ends of the pin shaft are fixed on the groove wall of the gear groove, the transmission gear is installed on the pin shaft, the support The frame is also telescopically installed with locking tooth blocks, and the locking tooth blocks and the transmission gears are installed vertically along the support frame; the pile legs are truss structures, and the chord tubes of the pile legs are composed of thick-walled semicircular tubes welded on both sides of the double-sided racks. The pile legs pass through the pile leg holes, and a pair of lifting transmission and locking mechanisms are located on both sides of the chord tubes, and both sides of the double-sided racks of the chord tubes are meshed with corresponding transmission gears; one end of the cantilever beam is fixed on the hull, and the part of the cantilever beam extending out of the hull is provided with multiple limit blocks, and the loading accessories are arranged at the limit blocks of the cantilever beam. The loading accessories are composed of square steel and hooks, and the hooks are connected to the middle lifting ears of the square steel. However, in the actual drilling process, since the pile legs in the patent belong to the truss structure, the three chord tubes on the pile legs will appear different chord differences when moving up and down due to the influence of different geological forces underground or deep sea. If the chord tube chord difference is too large, it will be stopped for protection, and manual compensation adjustment will be performed after stopping. The system frequently alarms and stops, which not only affects the progress and continuous operation of the drilling work, but also increases the operation time of the wind power installation platform.

[0004] Therefore, when there is a chord difference in the chord tube, the drilling needs to be stopped and compensated manually, which makes it difficult to ensure continuous operation of the drilling and increases the operating time of the wind power installation platform. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a wind power platform lifting system pile leg chord tube chord difference automatic adjustment device, which automatically detects and compensates the chord difference of the chord tube through a compensation unit and a detection component.

[0006] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0007] An automatic adjustment device for the chord difference between a leg and a chord tube of a wind power platform lifting system is used to adjust the chord difference of a chord tube assembly on a leg in an automatic compensation manner, comprising:

[0008] There are 3 detection components, all of which are disassembled and connected to the 3 string tube components of the pile legs, and cooperate with the string tube components to detect the chord difference of the string tube components.

[0009] The compensation unit is arranged in the lifting system of the wind power platform, connected with the communication protocol of the detection component, and used to receive the real-time measurement value representing the chord difference transmitted by the detection component. It is also used to drive the pile leg to rise or fall by means of speed compensation.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] When the chord tube is affected by the geology, the detection component automatically senses the chord difference of the chord tube along with the movement of the chord tube, reflects the influence of the geology on different chord tubes in turn, and transmits the chord difference to the compensation unit in the form of electrical signals or network communication. The compensation unit drives the pile leg to move up and down according to the compensation amount output by the chord difference, so as to achieve the purpose of adjusting the chord tube, thereby realizing automatic detection and automatic adjustment of the chord difference, reducing or even avoiding frequent alarms and shutdowns of the entire system instead of manual operation and adjustment, ensuring continuous operation of drilling work, improving efficiency, and reducing the operation time of the wind power installation platform.

[0012] Further preferably, the string tube assembly comprises: a first string tube, a second string tube and a third string tube, and the first string tube, the second string tube and the third string tube are respectively fixedly connected to the pile legs for driving the pile legs to move through movement.

[0013] The lifting teeth are arranged on the side walls of the first chord tube, the second chord tube and the third chord tube, contact the detection assembly and are used to drive the detection assembly to rotate by moving up and down.

[0014] By adopting the above technical solution, the lifting teeth are in contact with the detection assembly, so that the detection assembly detects the chord difference of each of the first chord tube, the second chord tube and the third chord tube along with their movements, thereby achieving the purpose of real-time automatic detection of the chord difference.

[0015] More preferably, the detection component comprises:

[0016] The bracket is arranged on the side of the pile leg and is detachably connected to the table top of the pile leg.

[0017] The toothed disc is arranged on the bracket, detachably connected to the bracket, and respectively meshed with the lifting teeth on the first string tube, the lifting teeth on the second string tube, and the lifting teeth on the third string tube, and is used to rotate along with the movement of the first string tube, the second string tube, and the third string tube.

[0018] The sensor is mounted on the bracket, located on the side where the toothed disc is connected to the bracket, and is coaxially connected to the toothed disc. It is used to sense the rotation speed of the toothed disc along with the rotation of the toothed disc, and then detect the chord difference of the first chord tube, the second chord tube and the third chord tube, and transmit the chord difference to the compensation unit in the form of an electrical signal or communication.

[0019] By adopting the above technical solution, the bracket fixes the toothed disc to ensure that the toothed disc is engaged with the first chord tube, the second chord tube and the third chord tube. As the sensor rotates along with the toothed disc, the deflection speed of the toothed disc is detected in real time, and then the chord difference of the chord tube during the movement is detected.

[0020] Further preferably, the compensation unit comprises:

[0021] The switch is arranged in the wind power platform lifting system and is connected with the sensor communication protocol.

[0022] The frequency converter is arranged in the wind power platform lifting system and is connected to the switch network for transmitting different frequency sources.

[0023] The pile leg driving motor is arranged in the wind power platform lifting system, and is connected to the frequency converter for outputting different rotation speeds according to different frequency sources to drive the first chord tube, the second chord tube and the third chord tube on the pile leg to move.

[0024] By adopting the above technical solution, after conversion by the switch, an accurate basis is provided for the frequency converter to accurately control the pile leg driving motor and output different speeds.

[0025] Further optimization is that the number of pile leg driving motors is 3, which are respectively connected to the first chord tube, the second chord tube and the third chord tube drive, and are all connected to the inverter communication protocol.

[0026] By adopting the above technical solution, the first fixing member is matched with the valve stem sleeve, and the second fixing member is firmly connected with the first fixing member and the top of the valve seat, so as to ensure that the valve stem runs smoothly in the valve seat.

[0027] Further optimization is that the sensor is a rotation speed sensor.

[0028] By adopting the above technical solution, the rotation speed of the gear disc is sensed, the rotation speed is converted into a measurable electrical signal, that is, an analog electrical signal, and the analog electrical signal is transmitted to the switch to realize the output and monitoring of the rotation speed.

[0029] Further optimized, the bracket includes:

[0030] The bottom plate is arranged on the pile legs and is detachably connected to the pile legs.

[0031] There are two legs, both are arranged on the base plate, the two legs are parallel and have a preset spacing, and the bottoms of the two legs are hinged to the base plate.

[0032] The tension spring is arranged between the two legs, one end of which is hooked with the lower part of one leg, and the other end is connected with the upper bolt of the other leg, and is used to prevent the distance between the legs from changing through tension.

[0033] Further optimized, the bracket also includes:

[0034] The connecting plate is arranged on the two supporting legs, and the ends thereof are respectively connected with the two supporting leg bolts.

[0035] The box body is arranged on the connecting plate and is located on one side of the connecting plate. The toothed disc is located on the other side of the connecting plate. The sensor is located inside the box body. The sensor, the connecting plate and the toothed disc are coaxially connected. The box body is used to protect the sensor.

[0036] By adopting the above technical solution, the base plate connects the support legs and the tension springs to the pile legs, and the box body, the sensor and the toothed disc are connected through the connecting plate. The toothed disc rotates along with the movement of the chord tube, thereby realizing the function of the bracket supporting the sensor. After detecting the rotation speed of the toothed disc, the electrical signal or communication is transmitted to the switch.

[0037] Further optimization is that the tooth shape of the toothed disc is the same as the tooth shape of the lifting teeth.

[0038] By adopting the above technical solution, the toothed disc and the lifting gear can be in good contact, so that the sensor can accurately detect the rotation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0040] Figure 2 Schematic diagram of the top view of the pile legs in this embodiment.

[0041] Figure 3 It is a rear view of the detection component in this embodiment.

[0042] Figure 4 In this embodiment Figure 3 Right view of .

[0043] Figure 5 Schematic diagram of the structure of the bracket in this embodiment.

[0044] Figure 6 Schematic diagram of the functional modules of this embodiment.

[0045] Figure numerals: 1-pile leg; 2-chord tube assembly; 20-lifting tooth; 21-first chord tube; 22-second chord tube; 23-third chord tube; 3-detection assembly; 31-sensor; 32-bracket; 321-bottom plate; 322-leg; 323-tension spring; 324-connecting plate; 325-box body; 33-toothed disc; 4-switch; 5-frequency converter; 6-pile leg driving motor. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-Figure 6 The utility model is further introduced in detail.

[0047] An automatic adjustment device for the chord difference between a leg 1 and a tube chord of a wind power platform lifting system, such as Figure 1 As shown, it is used to adjust the chord difference of the chord tube assembly 2 on the pile leg 1 in an automatic compensation manner, including:

[0048] The detection components 3 , which are 3 in number, are all disassembled and connected to the three string-tube components 2 of the pile leg 1 , and cooperate with the string-tube components 2 to detect the chord difference of the string-tube components 2 .

[0049] The compensation unit is arranged in the wind power platform lifting system, connected with the detection component 3 by communication protocol, and used to receive the real-time measurement value representing the chord difference transmitted by the detection component 3. It is also used to drive the pile leg 1 to rise or fall by means of speed compensation.

[0050] When the chord tube is affected by the geology, the detection component 3 automatically senses the chord difference of the chord tube along with the movement of the chord tube, reflects the influence of the geology on different chord tubes in turn, and transmits the chord difference to the compensation unit in the form of electrical signals or network communication. The compensation unit drives the pile leg 1 to move up and down according to the compensation amount output by the chord difference, so as to achieve the purpose of adjusting the chord tube, thereby realizing automatic detection and automatic adjustment of the chord difference, reducing or even avoiding frequent alarms of the entire system and stopping instead of manual operation and adjustment, ensuring continuous operation of drilling work, improving efficiency, and reducing the operation time of the wind power installation platform.

[0051] Specifically, Figure 1 and Figure 2 As shown, the string tube assembly 2 in this embodiment includes: a first string tube 21, a second string tube 22 and a third string tube 23. The first string tube 21, the second string tube 22 and the third string tube 23 are respectively fixedly connected to the pile legs 1 for driving the pile legs 1 to move through movement.

[0052] The lifting teeth 20 are arranged on the side walls of the first chord tube 21 , the second chord tube 22 and the third chord tube 23 , and are in contact with the detection assembly 3 , and are used to drive the detection assembly 3 to rotate by moving up and down.

[0053] Through the contact between the lifting teeth 20 and the detection assembly 3, the detection assembly 3 detects the chord differences of the first chord tube 21, the second chord tube 22 and the third chord tube 23 along with their movements, thereby achieving the purpose of real-time automatic detection of chord differences.

[0054] Specifically, Figure 1 , Figure 2 as well as Figure 3 As shown, the detection component 3 in this embodiment includes:

[0055] The bracket 32 ​​is arranged on the side of the pile leg 1 and is detachably connected to the table top of the pile leg 1 .

[0056] The toothed disc 33 is disposed on the bracket 32 ​​and is detachably connected to the bracket 32. The toothed disc 33 is respectively engaged with the lifting teeth 20 on the first string tube 21, the lifting teeth 20 on the second string tube 22, and the lifting teeth 20 on the third string tube 23, and is used to rotate along with the movement of the first string tube 21, the second string tube 22, and the third string tube 23.

[0057] The sensor 31 is mounted on the bracket 32, located on the side where the toothed disc 33 is connected to the bracket 32, and is coaxially connected to the toothed disc 33, and is used to sense the rotation speed of the toothed disc 33 along with the rotation of the toothed disc 33, and then detect the chord difference of the first chord tube 21, the second chord tube 22 and the third chord tube 23, and transmit the chord difference to the compensation unit in the form of an electrical signal or communication.

[0058] The bracket 32 ​​fixes the toothed disc 33 to ensure that the toothed disc 33 is meshed with the first chord tube 21, the second chord tube 22 and the third chord tube 23. The sensor 31 detects the deflection speed of the toothed disc 33 in real time during the rotation of the toothed disc 33, and further detects the chord difference of the chord tube during the movement.

[0059] Specifically, Figure 1 , Figure 2 , Figure 3 as well as Figure 6 As shown, the compensation unit in this embodiment includes:

[0060] The switch 4 is arranged in the wind power platform lifting system and is connected with the sensor 31 by communication protocol.

[0061] The frequency converter 5 is arranged in the wind power platform lifting system and is connected to the switch 4 for network communication, and is used for transmitting different frequency sources.

[0062] The pile leg driving motor 6 is arranged in the wind power platform lifting system and is connected to the frequency converter 5 for outputting different rotation speeds according to different electrical signals or communications to drive the first chord tube 21, the second chord tube 22 and the third chord tube 23 on the pile leg 1 to move.

[0063] After conversion by the switch 4, an accurate basis is provided for the frequency converter 5 to accurately control the pile leg driving motor 6 and output different rotation speeds.

[0064] Specifically, Figure 1 and Figure 2 As shown, the number of the pile leg driving motors 6 in this embodiment is three, which are respectively connected to the first string tube 21 , the second string tube 22 and the third string tube 23 , and are all connected to the frequency converter 5 via a communication protocol.

[0065] Specifically, as shown in the figure Figure 3 As shown, the sensor 31 in this embodiment uses a speed sensor 31 to sense the speed of the gear wheel 33, convert the speed into a measurable electrical signal, that is, an analog electrical signal, and transmit the analog electrical signal to the switch 4 to realize the output and monitoring of the speed.

[0066] Specifically, Figure 3 , Figure 4 as well as Figure 5 As shown, the bracket 32 ​​in this embodiment includes:

[0067] The bottom plate 321 is disposed on the pile leg 1 and is detachably connected to the pile leg 1 .

[0068] There are two legs 322 , both of which are disposed on the bottom plate 321 . The two legs 322 are parallel and have a preset spacing, and their bottoms are hinged to the bottom plate 321 .

[0069] The tension spring 323 is disposed between the two legs 322, with one end of the tension spring 323 being hooked to the lower portion of one leg 322 and the other end being bolted to the upper portion of the other leg 322, so as to prevent the spacing between the legs 322 from changing by tension.

[0070] Specifically, Figure 4 as well as Figure 5 As shown, the bracket 32 ​​in this embodiment also includes:

[0071] The connecting plate 324 is disposed on the two supporting legs 322 , and its ends are respectively connected to the two supporting legs 322 by bolts.

[0072] The box body 325 is arranged on the connecting plate 324, and is located on one side of the connecting plate 324. The toothed disc 33 is located on the other side of the connecting plate 324. The sensor 31 is located inside the box body 325. The sensor 31, the connecting plate 324 and the toothed disc 33 are coaxially connected. The box body 325 is used to protect the sensor 31 and prevent the box body 325 from being damaged. The bottom plate 321 connects the supporting leg 322 and the tension spring 323 to the pile leg 1, and the box body 325, the sensor 31 and the toothed disc 33 are connected through the connecting plate 324. The toothed disc 33 rotates with the movement of the chord tube, so that the bracket 32 ​​supports the sensor 31, and transmits the electrical signal or communication to the switch 4 after detecting the rotation speed of the toothed disc 33.

[0073] Specifically, Figure 3 , Figure 4 as well as Figure 5 As shown, in this embodiment, the tooth shape of the toothed disc 33 is the same as the tooth shape of the lifting teeth 20, so that the toothed disc 33 and the lifting teeth 20 can be in good contact, which facilitates the sensor 31 to accurately detect the rotation speed.

[0074] Please combine Figure 1-Figure 6 The process of automatically detecting chord difference in this embodiment is described as follows:

[0075] During the drilling process, the three string tubes will have different degrees of string difference due to geological influences. When the first string tube 21, the second string tube 22 and the third string tube 23 are moving, they drive the corresponding toothed discs 33 to rotate. Each sensor 31 located in the box body 325 monitors the rotation speed of the toothed disc 33 connected thereto in real time to achieve the purpose of automatic detection. In a network environment, the sensor 31 transmits the analog quantity representing the rotation speed to the switch 4. The switch 4 receives the analog quantity transmitted by different sensors 31, converts the analog quantity into data and transmits it to the frequency converter 5 connected thereto. The frequency converter 5 outputs different frequency sources to the pile leg driving motor 6 according to actual needs. Different pile leg driving motors 6 drive the pile legs 1 connected thereto to move, thereby achieving the purpose of compensating the string difference. This embodiment combines automatic detection with automatic compensation, replaces the process of manually operating the compensation of string difference, reduces or avoids the stop of the entire system, and has a high degree of automation.

[0076] This specific embodiment is merely an explanation of the utility model, and it is not a limitation of the utility model. After reading this specification, those skilled in the art can make non-creative modifications to the embodiment as needed, but as long as it is within the protection scope of the utility model, it is protected by the patent law.

Claims

1. An automatic adjustment device for the chord difference between a leg and a chord tube of a wind power platform lifting system, used for adjusting the chord difference of a chord tube assembly (2) on a leg (1) in an automatic compensation manner, characterized in that: include: Detection components (3), the number of which is 3 sets, all of which are detachably connected to the three string-tube components (2) of the pile leg (1), and cooperate with the string-tube components (2) to detect the string difference of the string-tube components (2); A compensation unit is arranged in the wind power platform lifting system, connected to the detection component (3) by a communication protocol, and used for receiving an analog quantity representing the chord difference transmitted by the detection component (3); and is also used for driving the pile leg (1) to rise or fall by means of speed compensation.

2. The automatic adjustment device for the pile leg chord and pipe chord difference of the wind power platform lifting system according to claim 1 is characterized in that: The string tube assembly (2) comprises: a first string tube (21), a second string tube (22) and a third string tube (23); the first string tube (21), the second string tube (22) and the third string tube (23) are respectively fixedly connected to the pile leg (1) and are used to drive the pile leg (1) to move by movement; The lifting teeth (20) are arranged on the side walls of the first chord tube (21), the second chord tube (22) and the third chord tube (23), are in contact with the detection component (3), and are used to drive the detection component (3) to rotate by moving up and down.

3. The automatic adjustment device for the pile leg chord and pipe chord difference of the wind power platform lifting system according to claim 2 is characterized in that: The detection component (3) comprises: A bracket (32) is arranged on the side of the pile leg (1) and is detachably connected to the table top of the pile leg (1); a toothed disc (33) disposed on the bracket (32), detachably connected to the bracket (32), respectively meshing with the lifting teeth (20) on the first string tube (21), the lifting teeth (20) on the second string tube (22), and the lifting teeth (20) on the third string tube (23), and used to rotate along with the movement of the first string tube (21), the second string tube (22), and the third string tube (23); The sensor (31) is mounted on the bracket (32), located on a side where the toothed disc (33) is connected to the bracket (32), and is coaxially connected to the toothed disc (33), and is used to sense the rotation speed of the toothed disc (33) along with the rotation of the toothed disc (33), thereby detecting the chord difference of the first chord tube (21), the second chord tube (22), and the third chord tube (23), and transmitting the chord difference to the compensation unit in the form of an electrical signal or communication.

4. The automatic adjustment device for the pile leg chord and pipe chord difference of the wind power platform lifting system according to claim 3 is characterized in that: The compensation unit comprises: A switch (4), arranged in the wind power platform lifting system, and connected to the sensor (31) via a communication protocol; A frequency converter (5), arranged in the wind power platform lifting system, connected to the switch (4) via network communication, and used for transmitting different frequency sources; A pile leg driving motor (6) is arranged in the wind power platform lifting system and is communicatively connected to the frequency converter (5) and is used to output different rotation speeds according to different frequency sources to drive the first chord tube (21), the second chord tube (22) and the third chord tube (23) on the pile leg (1) to move.

5. The automatic adjustment device for the leg-chord-tube-chord difference of the wind power platform lifting system according to claim 4 is characterized in that: The number of the pile leg driving motors (6) is three, which are respectively connected to the first chord tube (21), the second chord tube (22) and the third chord tube (23) in driving connection, and are all connected to the frequency converter (5) via a communication protocol.

6. The automatic adjustment device for the pile leg chord and pipe chord difference of the wind power platform lifting system according to claim 5 is characterized in that: The sensor (31) is a rotation speed sensor (31).

7. The automatic adjustment device for the pile leg chord and pipe chord difference of the wind power platform lifting system according to claim 5 is characterized in that: The support (32) comprises: A bottom plate (321) is arranged on the pile leg (1) and is detachably connected to the pile leg (1); There are two supporting legs (322), both of which are arranged on the bottom plate (321), the two supporting legs (322) are parallel and have a preset spacing, and the bottoms of the supporting legs (322) are hinged to the bottom plate (321); The tension spring (323) is arranged between the two supporting legs (322), one end of which is hooked with the lower part of one of the supporting legs (322), and the other end is bolted with the upper part of the other supporting leg (322), and is used to prevent the spacing of the supporting legs (322) from changing by tension.

8. The automatic adjustment device for the leg-chord-tube-chord difference of the wind power platform lifting system according to claim 7 is characterized in that: The support (32) further comprises: A connecting plate (324) is arranged on the two supporting legs (322), and its ends are respectively connected to the two supporting legs (322) by bolts; The box body (325) is arranged on the connecting plate (324) and is located on one side of the connecting plate (324). The toothed disc (33) is located on the other side of the connecting plate (324). The sensor (31) is located inside the box body (325). The sensor (31), the connecting plate (324) and the toothed disc (33) are coaxially connected. The box body (325) is used to protect the sensor (31).

9. The automatic adjustment device for the pile leg chord and pipe chord difference of the wind power platform lifting system according to claim 3 is characterized in that: The tooth shape of the toothed disc (33) is the same as the tooth shape of the lifting teeth (20).

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