A large wind power tower clamp-type dump truck

Abstract

The present invention relates to the field of wind turbine tower transportation technology, and in particular to a large-scale wind turbine tower clamp-type dump transport vehicle. An actual amplitude average value is calculated based on the amplitude recorded by a vibration detector, and whether a tower transportation process meets standards is determined by comparing the actual amplitude average value with a preset amplitude average value. For a situation where the tower does not meet standards, the reason why the tower transportation process does not meet standards is determined by comparing the average amplitude in the vertical direction or the horizontal direction, and the preset amplitude average value is corrected to a corresponding value using a corresponding coefficient according to the reason. Based on the comparison result of the corrected preset amplitude average value with the actual amplitude average value, it is determined again whether the tower transportation process meets standards. If the tower still does not meet standards, the vehicle is stopped urgently and the tightening torque of a first hydraulic adjustable distance flange and a second hydraulic adjustable distance flange is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of wind power tower transportation, and in particular to a large-scale wind power tower clamp-type dump truck. Background Art

[0002] Traditional tower transportation methods usually rely on large flatbed trucks or cranes for loading, unloading and transportation. This method is inefficient, costly, and has certain safety hazards during transportation. The clamp-type self-loading tower transporter adopts an advanced clamp-type clamping mechanism, which can achieve fast and stable clamping of the tower. At the same time, the vehicle is also equipped with an automated control system that can achieve precise control of the clamping process to ensure safety and stability during transportation. In addition, the clamp-type self-loading tower transporter also has a self-loading function, which can directly clamp and unload the tower on site, solving the efficiency, cost and safety issues in wind power tower transportation, and providing strong support for the development of the wind power industry.

[0003] Chinese Patent Publication No.: CN218021376U discloses a clamp-type tower-specific transport vehicle, including a transport vehicle body, a telescopic bottom plate is installed in the middle of the transport vehicle body, a tower body is placed above the telescopic bottom plate, and clamps are arranged on both sides of the tower body, a support frame is installed on one side outside the clamp, and a lifting cylinder is connected below the clamp; a guide slider is installed below the outer side of the support frame, a push hydraulic cylinder is connected on one side outside the guide slider, and a support cylinder is installed at the connection between the support frame and the clamp. Compared with the existing device, the clamp-type tower-specific transport vehicle can drive the guide slider and the support frame to move relative to each other in the horizontal direction through the push hydraulic cylinder, so that the relative distance between the support frames can be adjusted according to the length of the tower, and the tower body can be clamped and positioned by the clamps on both sides.

[0004] It can be seen that the clamp-type tower-specific transport vehicle has the following problems: although the transport vehicle can adjust the relative distance between the support frames according to the length of the tower, and can clamp and position the tower body through the clamps on both sides, it cannot play a role in real-time monitoring of the tower transportation process, cannot effectively avoid the problem of accidental loosening of the tower during transportation, and cannot improve the safety of the tower transportation process. Summary of the invention

[0005] To this end, the present invention provides a large wind turbine tower clamp-type dump truck to overcome the problems in the prior art that the tower transportation process cannot be monitored in real time, the accidental loosening of the tower during transportation cannot be effectively avoided, and the safety of the tower transportation process cannot be improved.

[0006] To achieve the above object, the present invention provides a large wind power tower clamp-type dump truck, comprising:

[0007] The front of the transport vehicle is used to control the forward speed and direction of the transport vehicle;

[0008] A tower fixing unit, which is connected to the front of the transport vehicle and is used to fix the spatial position of the tower, and includes a hydraulic power assembly;

[0009] The hydraulic power assembly includes a front goose head, a first lifting cylinder, a first hydraulic distance adjusting flange, a rear goose head, a second lifting cylinder, a second hydraulic distance adjusting flange, a hydraulic pump and a hydraulic valve, wherein the first hydraulic distance adjusting flange includes a first hydraulic adjustment rod, and the second hydraulic distance adjusting flange includes a second hydraulic adjustment rod;

[0010] A vibration detection unit, which is connected to the hydraulic power assembly and is used to detect the vibration amplitude of the tower during transportation, including a first amplitude detector, a second amplitude detector, a third amplitude detector and a fourth amplitude detector;

[0011] The central control unit is located in the hydraulic power assembly, and is used to determine the reason for non-compliance with the standard according to the amplitude difference in the vertical direction and the amplitude difference in the horizontal direction when it is determined that the transportation process of the tower does not meet the standard according to the actual amplitude average value, or to make a secondary determination on whether the transportation process meets the standard based on the actual size of the tower.

[0012] and, when the reason is that the force for fixing the tower in the vertical direction does not meet the standard, extending / shortening the first lifting cylinder and the second lifting cylinder, and, when the reason is that the force for fixing the tower in the horizontal direction does not meet the standard, extending / shortening the first hydraulic adjusting rod and the second hydraulic adjusting rod, and, when the reason is due to road conditions, reducing the vehicle speed, and adjusting the tightening torque of the first hydraulic distance adjusting flange and the second hydraulic distance adjusting flange based on the re-detection results of each amplitude detector.

[0013] Further, the first amplitude detector is located at a position where the first lifting cylinder is connected to the first hydraulic distance adjusting flange;

[0014] The second amplitude detector is located at the position where the front goose head is connected to the first hydraulic distance adjusting flange;

[0015] The third amplitude detector is located at a position where the second lifting cylinder is connected to the second hydraulic distance adjusting flange;

[0016] The fourth amplitude detector is located at the position where the rear goose head is connected to the second hydraulic distance adjusting flange.

[0017] Furthermore, the calculation formula of the actual amplitude average value L0 is:

[0018]

[0019] Among them, L0 represents the actual amplitude average value, L1 represents the detection result of the first amplitude detector, L2 represents the detection result of the second amplitude detector, L3 represents the detection result of the third amplitude detector, and L4 represents the detection result of the fourth amplitude detector.

[0020] Further, the central control unit is respectively connected to the first amplitude detector, the second amplitude detector, the third amplitude detector and the fourth amplitude detector, so as to calculate the actual amplitude average value according to the detection results of each amplitude detector, and to determine that the transportation process of the tower meets the standard when the actual amplitude average value is less than or equal to the preset amplitude average value, and continue to monitor whether the remaining process meets the standard;

[0021] It is also used to determine that the transportation process of the tower does not meet the standard when the actual amplitude average value is greater than the preset amplitude average value and less than or equal to 1.3 times the preset amplitude average value, and to make a secondary determination on whether the transportation process of the tower meets the standard based on the comparison result between the actual size of the tower and the preset size;

[0022] It is also used to determine that the transportation process of the tower does not meet the standards when the actual amplitude average value is greater than 1.3 times the preset amplitude average value, and to determine the reason why the transportation process of the tower does not meet the standards by comparing the results of the amplitude detector.

[0023] Further, secondarily determining whether the transportation process of the tower meets the standard based on the actual size of the tower and the preset size includes:

[0024] If the actual size of the tower is less than or equal to the preset size, the preset amplitude average value is corrected to the corresponding value a1′ by a first correction coefficient and compared with the actual amplitude average value again to determine whether the transportation process of the tower meets the standard;

[0025] If the actual size of the tower is larger than the preset size, the preset amplitude average value is corrected to the corresponding value a2′ by a second correction coefficient and compared with the actual amplitude average value again to determine whether the transportation process of the tower meets the standard;

[0026] The first correction coefficient is greater than 1 and less than the second correction coefficient.

[0027] Further, based on the comparison between the actual amplitude average value and the corrected preset amplitude average value, a secondary determination is made as to whether the transportation process of the tower meets the standard, including:

[0028] If the actual amplitude average value is less than or equal to the corrected preset amplitude average value, it is determined that the transportation process of the tower meets the standard, and the remaining process continues to be monitored to see whether it meets the standard;

[0029] If the actual amplitude average value is greater than the corrected preset amplitude average value, it is determined that the transportation process of the tower does not meet the standards, and the reason why the transportation process of the tower does not meet the standards is determined based on the analysis of the results of each amplitude detector.

[0030] Further, the reasons why the transportation process of the tower does not meet the standards are determined based on the actual amplitude average value analysis, including:

[0031] Calculate the average value of the first amplitude detector and the second amplitude detector, denoted as h1;

[0032] Calculate the average value of the third amplitude detector and the fourth amplitude detector, denoted as h2;

[0033] Calculate an average value of the first amplitude detector and the third amplitude detector, denoted as s1;

[0034] Calculate the average value of the second amplitude detector and the fourth amplitude detector, denoted as s2;

[0035] Calculate the difference between h1 and h2 and the absolute value of the difference between the two, and record them as h0 and h2 respectively. o ';

[0036] Calculate the difference between s1 and s2 and the absolute value of the difference between the two, and record them as s0 and s0' respectively;

[0037] If h0' is greater than 1.2 times s0', it is determined that the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the vertical direction does not meet the standard;

[0038] If h0' is less than 0.8 times s0', it is determined that the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the horizontal direction does not meet the standard;

[0039] If h0' is greater than s0' and less than 1.2 times of s0', and h0' is greater than 0.8 times of s0' and less than s0', it is determined that the reason why the transportation process of the tower does not meet the standards is due to road conditions.

[0040] Furthermore, the central control unit is connected to each amplitude detector and the hydraulic power assembly respectively, so as to make corrections when the reason why the tower barrel transportation process does not meet the standard is that the force for fixing the tower barrel in the vertical direction does not meet the standard, wherein:

[0041] If h0 is greater than 0, the central control unit controls the hydraulic pump to extend the first lifting cylinder and the second lifting cylinder to corresponding values ​​at the same time;

[0042] If h0 is less than 0, the central control unit controls the hydraulic valve to shorten the first lifting cylinder and the second lifting cylinder to corresponding values ​​at the same time.

[0043] Furthermore, the central control unit is connected to each amplitude detector and the hydraulic power assembly respectively, so as to make corrections when the reason why the tower transportation process does not meet the standard is that the force for fixing the tower in the horizontal direction does not meet the standard, wherein:

[0044] If s0 is greater than 0, the central control unit extends the first hydraulic adjustment rod and the second hydraulic adjustment rod to corresponding values;

[0045] If s0 is less than 0, the central control unit shortens the first hydraulic adjustment rod and the second hydraulic adjustment rod to corresponding values.

[0046] Furthermore, the central control unit is connected to each amplitude detector and the hydraulic power assembly respectively, so as to make corrections when the reason why the transportation process of the tower does not meet the standards is that the road conditions do not meet the standards, reduce the speed of the tower transport vehicle to a preset value, and make three judgments on whether the transportation process of the tower meets the standards based on the latest results of each amplitude detector.

[0047] Among them, if the three judgment results of the transportation process of the tower still do not meet the standards, the central control unit controls the tower transport vehicle to stop urgently and adjusts the tightening torque of the first hydraulic adjustable distance flange and the second hydraulic adjustable distance flange.

[0048] Compared with the prior art, the beneficial effect of the present invention lies in that: the present invention arranges the vibration detection unit on the tower transport vehicle, obtains the actual amplitude average value based on the data recorded by the amplitude detector and compares it with the preset amplitude average value, and determines whether the transportation process of the tower meets the standards based on the comparison result, or makes a secondary judgment. If the transportation process of the tower meets the standards, the remaining process continues to be monitored to see whether it meets the standards. If the transportation process of the tower does not meet the standards, the data of the amplitude detector is analyzed and the reason why the transportation process of the tower does not meet the standards is determined. At the same time, according to the specific reasons, the preset amplitude average value is corrected to the corresponding value using the corresponding correction coefficient and re-determines whether the transportation process of the tower meets the standards. If it still does not meet the standards, the vehicle is stopped in an emergency, and the tightening torque of the first hydraulic adjustable distance flange and the second hydraulic adjustable distance flange is adjusted, so as to monitor the transportation process of the tower in real time, effectively avoid the problem of accidental loosening during the transportation of the tower, and effectively improve the safety of the transportation process of the tower.

[0049] Furthermore, the transport vehicle of the present invention monitors the vibration amplitudes of the connection position between the first lifting cylinder and the first hydraulic distance adjusting flange, the connection position between the front goose head and the first hydraulic distance adjusting flange, the connection position between the second lifting cylinder and the second hydraulic distance adjusting flange, and the connection position between the rear goose head and the second hydraulic distance adjusting flange by setting a first amplitude detector, a second amplitude detector, a third amplitude detector and a fourth amplitude detector. It can accurately monitor the direction of the force fixing the tower and timely monitor the fixing force in the vertical and horizontal directions, thereby improving the monitoring capability of the position change of the tower and further improving the safety of the tower transportation process.

[0050] Furthermore, the present invention calculates the average value of the data recorded by each amplitude detector, which effectively avoids the randomness of single data, and can improve the accuracy of determining whether the tower transportation process meets the standards, thereby effectively avoiding the problem of accidental loosening during the tower transportation process and effectively improving the safety of the tower transportation process.

[0051] Furthermore, the present invention distinguishes whether the tower transportation process meets the standards, makes a secondary judgment on the situation where it is uncertain whether the tower transportation process meets the standards, and determines the cause of the situation where it is determined that the standards are not met, thereby effectively avoiding the problem of accidental loosening during the tower transportation process and effectively improving the safety of the tower transportation process.

[0052] Furthermore, the present invention performs a secondary judgment on whether the transportation process of an uncertain tower meets the standards based on the actual size and preset size of the tower, and uses corresponding correction coefficients to correct the preset amplitude average value to a corresponding value for the two situations that the actual size is greater than the preset size and the actual size is less than or equal to the preset size, and judges whether the transportation process of the tower meets the standards based on a comparison between the updated preset amplitude average value and the actual amplitude average value, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0053] Furthermore, the present invention determines that the transportation process of the tower does not meet the standards when the actual amplitude average value is greater than the corrected preset average value, and determines the reason why the transportation process of the tower does not meet the standards based on the analysis of the results of each amplitude detector, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0054] Furthermore, the present invention determines the reasons why the transportation process of the tower does not meet the standards based on the comparison results of each amplitude detector, including that the force for fixing the tower in the vertical direction does not meet the standards, the force for fixing the tower in the horizontal direction does not meet the standards and road conditions, thereby effectively avoiding the problem of accidental loosening of the tower during transportation and effectively improving the safety of the tower transportation process.

[0055] Furthermore, the present invention determines that the reason why the transportation process of the tower does not meet the standards is that the force fixing the tower in the vertical direction does not meet the standards. If the force fixing the upper end of the tower is greater than the force fixing the lower end of the tower, the first lifting cylinder and the second lifting cylinder are extended to corresponding values; if the force fixing the upper end of the tower is less than the force fixing the lower end of the tower, the first lifting cylinder and the second lifting cylinder are shortened to corresponding values, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0056] Furthermore, the present invention determines the situation where the reason why the transportation process of the tower does not meet the standards is that the force fixing the tower in the horizontal direction does not meet the standards. If the force fixing the front end of the tower is greater than the force fixing the rear end of the tower, the first hydraulic adjusting rod and the second hydraulic adjusting rod are extended to corresponding values; if the force fixing the front end of the tower is less than the force fixing the rear end of the tower, the first hydraulic adjusting rod and the second hydraulic adjusting rod are shortened to corresponding values, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0057] Furthermore, in the present invention, when the reason why the transportation process of the tower does not meet the standards is the road condition, the vehicle speed is reduced to the preset vehicle speed value, and three judgments are made on whether the transportation process of the tower meets the standards based on the latest results of each of the four amplitude detectors. If the three judgment results of the transportation process of the tower still do not meet the standards, emergency parking is required, and the tightening torque of the first hydraulic distance adjusting flange and the second hydraulic distance adjusting flange are adjusted, so as to effectively avoid the problem of accidental loosening during the transportation of the tower and effectively improve the safety of the transportation process of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 A schematic diagram of a large wind power tower clamp-type dump truck according to an embodiment of the present invention;

[0059] Figure 2 This is a structural block diagram of a large wind power tower clamp-type dump truck according to an embodiment of the present invention;

[0060] Figure 3 A flowchart of an embodiment of the present invention for determining whether the transportation process of the tower meets the standard based on the actual amplitude average value;

[0061] Figure 4 This is a flow chart of an embodiment of the present invention for secondarily determining whether the transportation process of the tower meets the standard based on the actual amplitude average value;

[0062] In the figure: the front end of the transport vehicle 1; the first hydraulic distance adjusting flange 3; the first lifting cylinder 2; the front goose head 5; the first hydraulic adjustment rod 4; the second hydraulic distance adjusting flange 6; the second lifting cylinder 8; the rear goose head 9; the second hydraulic adjustment rod 7, the slewing bearing 10, and the first tire 11. DETAILED DESCRIPTION

[0063] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0064] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0065] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0066] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] See also Figure 1 and Figure 2 As shown, they are respectively a schematic diagram and a structural block diagram of a large-scale wind power tower clamp-type self-unloading transport vehicle according to an embodiment of the present invention. The large-scale wind power tower clamp-type self-unloading transport vehicle of the present invention comprises:

[0068] The front end of the transport vehicle 1 is used to control the forward speed and direction of the transport vehicle;

[0069] A tower fixing unit, which is connected to the front of the transport vehicle 1 and is used to fix the spatial position of the tower, and includes a hydraulic power assembly;

[0070] The hydraulic power assembly includes a front goose head 5, a first lifting cylinder 2, a first hydraulic distance adjusting flange 3, a rear goose head 9, a second lifting cylinder 8, a second hydraulic distance adjusting flange 6, a hydraulic pump and a hydraulic valve (not shown in the figure), wherein the first hydraulic distance adjusting flange 3 includes a first hydraulic adjustment rod 4, and the second hydraulic distance adjusting flange 6 includes a second hydraulic adjustment rod 7;

[0071] A vibration detection unit, which is connected to the hydraulic power assembly and is used to detect the vibration amplitude of the tower during transportation, including a first amplitude detector, a second amplitude detector, a third amplitude detector and a fourth amplitude detector;

[0072] The central control unit is located in the hydraulic power assembly, and is used to determine the reason for non-compliance with the standard according to the amplitude difference in the vertical direction and the amplitude difference in the horizontal direction when it is determined that the transportation process of the tower does not meet the standard according to the actual amplitude average value, or to make a secondary determination on whether the transportation process meets the standard based on the actual size of the tower.

[0073] And, when the reason is that the force for fixing the tower in the vertical direction does not meet the standard, the first lifting cylinder 2 and the second lifting cylinder 8 are extended / shortened, and when the reason is that the force for fixing the tower in the horizontal direction does not meet the standard, the first hydraulic adjusting rod 4 and the second hydraulic adjusting rod 7 are extended / shortened, and when the reason is due to road conditions, the vehicle speed is reduced, and the tightening torque of the first hydraulic distance adjusting flange 3 and the second hydraulic distance adjusting flange 6 is adjusted based on the re-detection results of each amplitude detector.

[0074] Specifically, the front goose head 5 is connected to the first hydraulic distance adjusting flange 3 and the first lifting cylinder 2;

[0075] Specifically, the connection between the front goose head 5 and the first hydraulic distance adjusting flange 3 and the first lifting cylinder 2 is hinged;

[0076] Specifically, the tower fixing unit also includes an auxiliary travel component connected to the hydraulic power component to assist the vehicle in traveling, which includes:

[0077] Certain tire assemblies;

[0078] The slewing bearing 10 is arranged above the tire and is used to adjust the turning radius of the tower transport vehicle during the turning process.

[0079] Specifically, a single tire assembly includes a first tire 11, a second tire (not shown in the figure), and a rotating main shaft (not shown in the figure) disposed between the first tire 11 and the second tire and connected to the first tire 11 and the second tire respectively.

[0080] Specifically, the first tire 11 and the second tire have the same size and material, and the first tire and the second tire are respectively arranged on both sides of the slewing support.

[0081] Specifically, the embodiment of the present invention does not limit the number of tire components.

[0082] In an embodiment, the present invention arranges the vibration detection unit on the tower transport vehicle, obtains the actual amplitude average value based on the data recorded by the amplitude detector and compares it with the preset amplitude average value, and determines whether the transportation process of the tower meets the standards based on the comparison result, or performs a secondary determination. If the transportation process of the tower meets the standards, the remaining process continues to be monitored to see whether it meets the standards. If the transportation process of the tower does not meet the standards, the data of the amplitude detector is analyzed and the reason why the transportation process of the tower does not meet the standards is determined. At the same time, according to the specific reasons, the preset amplitude average value is corrected to the corresponding value using a corresponding correction coefficient and re-determines whether the transportation process of the tower meets the standards. If it still does not meet the standards, the vehicle is stopped in an emergency, and the first hydraulic distance adjusting flange 3 and the second hydraulic distance adjusting flange 6 are adjusted to the maximum value, so as to monitor the transportation process of the tower in real time, effectively avoid the problem of accidental loosening during the transportation of the tower, and effectively improve the safety of the transportation process of the tower.

[0083] Specifically, in the embodiment of the present invention, the first amplitude detector is located at the position where the first lifting cylinder 2 is connected to the first hydraulic distance adjusting flange 3;

[0084] The second amplitude detector is located at the position where the front goose head 5 is connected to the first hydraulic distance adjustment flange 3;

[0085] The third amplitude detector is located at the position where the second lifting cylinder 8 is connected to the second hydraulic distance adjusting flange 6;

[0086] The fourth amplitude detector is located at the position where the rear goose head 9 is connected to the second hydraulic distance adjusting flange 6 .

[0087] Those skilled in the art can understand that the setting of the relative spatial positions of the first amplitude detector, the second amplitude detector, the third amplitude detector and the fourth amplitude detector is a preferred embodiment of the present invention. Those skilled in the art only need to keep each amplitude detector at each connection position and be able to detect the corresponding vibration intensity, and there is no limitation on the type, rated operating parameters and size of each amplitude detector.

[0088] In an embodiment, the transport vehicle of the present invention monitors the vibration amplitude of the connection position between the first lifting cylinder 2 and the first hydraulic distance adjusting flange 3, the connection position between the front goose head 5 and the first hydraulic distance adjusting flange 3, the connection position between the second lifting cylinder 8 and the second hydraulic distance adjusting flange 6, and the connection position between the rear goose head 9 and the second hydraulic distance adjusting flange 6 by setting a first amplitude detector, a second amplitude detector, a third amplitude detector and a fourth amplitude detector. It can accurately monitor the direction of the force fixing the tower and timely monitor the fixing force in the vertical and horizontal directions, thereby improving the monitoring capability of the position change of the tower and further improving the safety of the tower transportation process.

[0089] Specifically, the calculation formula of the actual amplitude average value in the embodiment of the present invention is:

[0090]

[0091] Wherein, L0 represents the actual amplitude average value, L1 represents the detection result of the first amplitude detector, L2 represents the detection result of the second amplitude detector, L3 represents the detection result of the third amplitude detector, and L4 represents the detection result of the fourth amplitude detector.

[0092] In an embodiment, the present invention calculates the average value of the data recorded by each amplitude detector, which effectively avoids the randomness of single data, and can improve the accuracy of determining whether the transportation process of the tower meets the standards, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0093] See also Figure 3 As shown, it is a flow chart of an embodiment of the present invention for determining whether the transportation process of the tower meets the standard based on the actual amplitude average value.

[0094] Specifically, the central control unit of the embodiment of the present invention is respectively connected to the first amplitude detector, the second amplitude detector, the third amplitude detector and the fourth amplitude detector, so as to calculate the actual amplitude average value according to the detection results of each amplitude detector, and determine that the transportation process of the tower meets the standard when the actual amplitude average value is less than or equal to the preset amplitude average value, and continue to monitor whether the remaining process meets the standard;

[0095] It is also used to determine that the transportation process of the tower does not meet the standard when the actual amplitude average value is greater than the preset amplitude average value and less than or equal to 1.3 times the preset amplitude average value, and to make a secondary determination on whether the transportation process of the tower meets the standard based on the comparison result between the actual size of the tower and the preset size;

[0096] It is also used to determine that the transportation process of the tower does not meet the standards when the actual amplitude average value is greater than 1.3 times the preset amplitude average value, and to determine the reason why the transportation process of the tower does not meet the standards by comparing the results of the amplitude detector.

[0097] Specifically, in the actual transportation process, the optional range of the preset amplitude average value is generally [30mm, 50mm]; the preferred embodiment of the preset amplitude of the present invention is 40mm.

[0098] In an embodiment, the present invention distinguishes whether the transportation process of the tower meets the standards, makes a secondary judgment on the situation where it is uncertain whether the transportation process of the tower meets the standards, and determines the cause of the situation where it is determined that the standards are not met, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0099] Specifically, the embodiment of the present invention determines whether the transportation process of the tower meets the standard based on the actual size of the tower and the preset size, including:

[0100] If the actual size of the tower is less than or equal to the preset size, the preset amplitude average value is corrected to the corresponding value a1′ by a first correction coefficient and compared with the actual amplitude average value again to determine whether the transportation process of the tower meets the standard;

[0101] If the actual size of the tower is larger than the preset size, the preset amplitude average value is corrected to the corresponding value a2′ by a second correction coefficient and compared with the actual amplitude average value again to determine whether the transportation process of the tower meets the standard;

[0102] The first correction coefficient is greater than 1 and less than the second correction coefficient.

[0103] Specifically, in the actual transportation process, the general optional range of the preset size is [5m, 10m]; the preferred embodiment of the preset size of the present invention is that the preset size is 7m; when using the amplitude correction coefficient to correct the preset amplitude average value, the corrected parameters a1′=z1×a, a2′=z2×a are set. In the preferred embodiment of the present invention, a is 40mm, z1 is the first correction coefficient 1.2, and z2 is the second correction coefficient 1.4.

[0104] In an embodiment, the present invention performs a secondary judgment on whether the transportation process of an uncertain tower meets the standards based on the actual size and the preset size of the tower. For the two situations where the actual size is greater than the preset size and the actual size is less than or equal to the preset size, the preset amplitude average value is corrected to the corresponding value using a corresponding correction coefficient, and based on the comparison between the updated preset amplitude average value and the actual amplitude average value, it is judged whether the transportation process of the tower meets the standards, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0105] Specifically, the embodiment of the present invention secondarily determines whether the transportation process of the tower meets the standard based on the comparison between the actual amplitude average value and the corrected preset amplitude average value, including:

[0106] If the actual amplitude average value is less than or equal to the corrected preset amplitude average value, it is determined that the transportation process of the tower meets the standard, and the remaining process continues to be monitored to see whether it meets the standard;

[0107] If the actual amplitude average value is greater than the corrected preset amplitude average value, it is determined that the transportation process of the tower does not meet the standards, and the reason why the transportation process of the tower does not meet the standards is determined based on the analysis of the results of each amplitude detector.

[0108] In an embodiment, the present invention determines that the transportation process of the tower does not meet the standards when the actual amplitude average value is greater than the corrected preset average value, and determines the reason why the transportation process of the tower does not meet the standards based on the analysis of the results of each amplitude detector, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0109] Specifically, the embodiment of the present invention determines the reason why the transportation process of the tower does not meet the standard based on the actual amplitude average value analysis, including:

[0110] Calculate the average value of the first amplitude detector and the second amplitude detector, denoted as h1;

[0111] Calculate the average value of the third amplitude detector and the fourth amplitude detector, denoted as h2;

[0112] Calculate an average value of the first amplitude detector and the third amplitude detector, denoted as s1;

[0113] Calculate the average value of the second amplitude detector and the fourth amplitude detector, denoted as s2;

[0114] Calculate the difference between h1 and h2 and the absolute value of the difference between the two, and record them as h0 and h2 respectively.o ';

[0115] Calculate the difference between s1 and s2 and the absolute value of the difference between the two, and record them as s0 and s0' respectively;

[0116] If h0' is greater than 1.2 times s0', it is determined that the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the vertical direction does not meet the standard;

[0117] If h0' is less than 0.8 times s0', it is determined that the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the horizontal direction does not meet the standard;

[0118] If h0' is greater than s0' and less than 1.2 times of s0', and h0' is greater than 0.8 times of s0' and less than s0', it is determined that the reason why the transportation process of the tower does not meet the standards is due to road conditions.

[0119] In an embodiment, the present invention determines the reasons why the transportation process of the tower does not meet the standards based on the comparison results of each amplitude detector, including that the force for fixing the tower in the vertical direction does not meet the standards, the force for fixing the tower in the horizontal direction does not meet the standards and road conditions, thereby effectively avoiding the problem of accidental loosening of the tower during transportation and effectively improving the safety of the tower transportation process.

[0120] Specifically, the central control unit of the embodiment of the present invention is respectively connected to each amplitude detector and the hydraulic power assembly, so as to make corrections when the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the vertical direction does not meet the standard, wherein:

[0121] If h0 is greater than 0, the central control unit controls the hydraulic pump to extend the first lifting cylinder 2 and the second lifting cylinder 8 to corresponding values ​​at the same time;

[0122] If h0 is less than 0, the central control unit controls the hydraulic valve to shorten the first lifting cylinder 2 and the second lifting cylinder 8 to corresponding values ​​at the same time.

[0123] In an embodiment of the present invention, when the hydraulic pump in the hydraulic power assembly provides hydraulic oil to the lifting cylinder, the piston in the lifting cylinder generates thrust due to the action of the liquid pressure, thereby synchronously extending the first lifting cylinder 2 and the second lifting cylinder 8 to 1.1 to 1.3 times of the original length; when the hydraulic valve in the hydraulic power assembly controls the hydraulic oil to return to the oil tank, the hydraulic oil in the cylinder is released, and the piston descends due to the action of external gravity, thereby synchronously shortening the first lifting cylinder 2 and the second lifting cylinder 8 to 0.7 to 0.9 times of the original length. A preferred embodiment of the present invention is to synchronously extend the first lifting cylinder 2 and the second lifting cylinder 8 to 1.2 times of the original length, or to synchronously shorten the first lifting cylinder 2 and the second lifting cylinder 8 to 0.8 times of the original length.

[0124] In implementation, the present invention determines that the reason why the transportation process of the tower does not meet the standards is that the force fixing the tower in the vertical direction does not meet the standards. If the force fixing the upper end of the tower is greater than the force fixing the lower end of the tower, the first lifting cylinder 2 and the second lifting cylinder 8 are extended to corresponding values. If the force fixing the upper end of the tower is less than the force fixing the lower end of the tower, the first lifting cylinder 2 and the second lifting cylinder 8 are shortened to corresponding values, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0125] Specifically, the central control unit of the embodiment of the present invention is respectively connected to each amplitude detector and the hydraulic power assembly, so as to make corrections when the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the horizontal direction does not meet the standard, wherein:

[0126] If s0 is greater than 0, the central control unit extends the first hydraulic adjustment rod 4 and the second hydraulic adjustment rod 7 to corresponding values;

[0127] If s0 is less than 0, the central control unit shortens the first hydraulic adjustment rod 4 and the second hydraulic adjustment rod 7 to corresponding values.

[0128] In an embodiment of the present invention, the length of the first hydraulic adjusting rod 4 and the second hydraulic adjusting rod 7 are synchronously extended to 1.1 to 1.3 times of the original length, or the length of the first hydraulic adjusting rod 4 and the second hydraulic adjusting rod 7 are synchronously shortened to 0.7 to 0.9 times of the original length. A preferred embodiment of the present invention is to synchronously extend the first lifting cylinder 2 and the second lifting cylinder 8 to 1.2 times of the original length, or to synchronously shorten the length of the first lifting cylinder 2 and the second lifting cylinder 8 to 0.8 times of the original length.

[0129] In an embodiment, the present invention determines that the reason why the transportation process of the tower does not meet the standards is that the force for fixing the tower in the horizontal direction does not meet the standards. If the force fixing the front end of the tower is greater than the force fixing the rear end of the tower, the first hydraulic adjusting rod 4 and the second hydraulic adjusting rod 7 are extended to corresponding values. If the force fixing the front end of the tower is less than the force fixing the rear end of the tower, the first hydraulic adjusting rod 4 and the second hydraulic adjusting rod 7 are shortened to corresponding values, thereby effectively avoiding the problem of accidental loosening during the transportation of the tower and effectively improving the safety of the transportation process of the tower.

[0130] Specifically, the central control unit of the embodiment of the present invention is respectively connected to each amplitude detector and the hydraulic power assembly, so as to make corrections when the reason why the transportation process of the tower does not meet the standards is that the road conditions do not meet the standards, reduce the speed of the tower transport vehicle to a preset value, and make three judgments on whether the transportation process of the tower meets the standards based on the latest results of each amplitude detector.

[0131] If the three determination results of the tower transportation process still do not meet the standards, the central control unit controls the tower transport vehicle to stop urgently and adjusts the tightening torque of the first hydraulic adjustable distance flange 3 and the second hydraulic adjustable distance flange 6.

[0132] In implementation, the present invention reduces the vehicle speed to the preset vehicle speed value when the reason why the tower transportation process does not meet the standards is the road condition, and makes three judgments on whether the tower transportation process meets the standards based on the latest results of the four amplitude detectors. If the three judgment results of the tower transportation process still do not meet the standards, emergency parking is required, and 100% of the target torque value is applied to increase the number of rotations of the bolt and repeat this process three times to increase the tightening torque of the first hydraulic adjustable flange 3 and the second hydraulic adjustable flange 6, thereby effectively avoiding the problem of accidental loosening during the tower transportation process and effectively improving the safety of the tower transportation process.

[0133] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A large wind power tower clamp-type dump truck, characterized in that: include: The front of the transport vehicle is used to control the forward speed and direction of the transport vehicle; A tower fixing unit, which is connected to the front of the transport vehicle and is used to fix the spatial position of the tower, and includes a hydraulic power assembly; The hydraulic power assembly includes a front goose head, a first lifting cylinder, a first hydraulic distance adjusting flange, a rear goose head, a second lifting cylinder, a second hydraulic distance adjusting flange, a hydraulic pump and a hydraulic valve, wherein the first hydraulic distance adjusting flange includes a first hydraulic adjustment rod, and the second hydraulic distance adjusting flange includes a second hydraulic adjustment rod; A vibration detection unit, which is connected to the hydraulic power assembly and is used to detect the vibration amplitude of the tower during transportation, including a first amplitude detector, a second amplitude detector, a third amplitude detector and a fourth amplitude detector; The central control unit is located in the hydraulic power assembly, and is used to determine the reason for non-compliance with the standard according to the amplitude difference in the vertical direction and the amplitude difference in the horizontal direction when it is determined that the transportation process of the tower does not meet the standard according to the actual amplitude average value, or to make a secondary determination on whether the transportation process meets the standard based on the actual size of the tower. and, when the reason is that the force for fixing the tower in the vertical direction does not meet the standard, extending / shortening the first lifting cylinder and the second lifting cylinder, and, when the reason is that the force for fixing the tower in the horizontal direction does not meet the standard, extending / shortening the first hydraulic adjusting rod and the second hydraulic adjusting rod, and, when the reason is due to road conditions, reducing the vehicle speed, and adjusting the tightening torque of the first hydraulic distance adjusting flange and the second hydraulic distance adjusting flange based on the re-detection results of each amplitude detector.

2. A large wind power tower clamp-type dump truck according to claim 1, characterized in that: The first amplitude detector is located at a position where the first lifting cylinder is connected to the first hydraulic distance adjusting flange; The second amplitude detector is located at the position where the front goose head is connected to the first hydraulic distance adjusting flange; The third amplitude detector is located at a position where the second lifting cylinder is connected to the second hydraulic distance adjusting flange; The fourth amplitude detector is located at the position where the rear goose head is connected to the second hydraulic distance adjusting flange.

3. A large wind power tower clamp-type dump truck according to claim 1, characterized in that: The calculation formula of the actual amplitude average value is: Among them, L0 represents the actual amplitude average value, L1 represents the detection result of the first amplitude detector, L2 represents the detection result of the second amplitude detector, L3 represents the detection result of the third amplitude detector, and L4 represents the detection result of the fourth amplitude detector.

4. A large-scale wind power tower clamp-type dump truck according to claim 3, characterized in that: The central control unit is connected to the first amplitude detector, the second amplitude detector, the third amplitude detector and the fourth amplitude detector respectively, and is used to calculate the actual amplitude average value according to the detection results of each amplitude detector, and to determine that the transportation process of the tower meets the standard when the actual amplitude average value is less than or equal to the preset amplitude average value, and continue to monitor whether the remaining process meets the standard; It is also used to determine that the transportation process of the tower does not meet the standard when the actual amplitude average value is greater than the preset amplitude average value and less than or equal to 1.3 times the preset amplitude average value, and to make a secondary determination on whether the transportation process of the tower meets the standard based on the comparison result between the actual size of the tower and the preset size; It is also used to determine that the transportation process of the tower does not meet the standards when the actual amplitude average value is greater than 1.3 times the preset amplitude average value, and to determine the reason why the transportation process of the tower does not meet the standards by comparing the results of the amplitude detector.

5. A large-scale wind power tower clamp-type dump truck according to claim 4, characterized in that: Secondarily determining whether the transportation process of the tower meets the standard based on the actual size of the tower and the preset size includes: If the actual size of the tower is less than or equal to the preset size, the preset amplitude average value is corrected to the corresponding value a1′ by a first correction coefficient and compared with the actual amplitude average value again to determine whether the transportation process of the tower meets the standard; If the actual size of the tower is larger than the preset size, the preset amplitude average value is corrected to the corresponding value a2′ by a second correction coefficient and compared with the actual amplitude average value again to determine whether the transportation process of the tower meets the standard; The first correction coefficient is greater than 1 and less than the second correction coefficient.

6. A large-scale wind power tower clamp-type dump truck according to claim 5, characterized in that: Secondarily determining whether the transportation process of the tower meets the standard based on the comparison between the actual amplitude average value and the corrected preset amplitude average value includes: If the actual amplitude average value is less than or equal to the corrected preset amplitude average value, it is determined that the transportation process of the tower meets the standard, and the remaining process continues to be monitored to see whether it meets the standard; If the actual amplitude average value is greater than the corrected preset amplitude average value, it is determined that the transportation process of the tower does not meet the standards, and the reason why the transportation process of the tower does not meet the standards is determined based on the analysis of the results of each amplitude detector.

7. A large wind power tower clamp-type dump truck according to claim 6, characterized in that: The reasons why the transportation process of the tower does not meet the standards are determined based on the actual amplitude average value analysis, including: Calculate the average value of the first amplitude detector and the second amplitude detector, denoted as h1; Calculate the average value of the third amplitude detector and the fourth amplitude detector, denoted as h2; Calculate the average value of the first amplitude detector and the third amplitude detector, denoted as s1; Calculate the average value of the second amplitude detector and the fourth amplitude detector, recorded as s2; Calculate the difference between h1 and h2 and the absolute value of the difference between the two, and record them as h0 and h2 respectively. o '; Calculate the difference between s1 and s2 and the absolute value of the difference between the two, and record them as s0 and s0' respectively; If h0' is greater than 1.2 times s0', it is determined that the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the vertical direction does not meet the standard; If h0' is less than 0.8 times s0', it is determined that the reason why the transportation process of the tower does not meet the standard is that the force for fixing the tower in the horizontal direction does not meet the standard; If h0' is greater than s0' and less than 1.2 times of s0', and h0' is greater than 0.8 times of s0' and less than s0', it is determined that the reason why the transportation process of the tower does not meet the standards is due to road conditions.

8. A large wind power tower clamp-type dump truck according to claim 7, characterized in that: The central control unit is connected to each amplitude detector and the hydraulic power assembly respectively, and is used to make corrections when the reason why the tower barrel transportation process does not meet the standard is that the force for fixing the tower barrel in the vertical direction does not meet the standard, wherein: If h0 is greater than 0, the central control unit controls the hydraulic pump to extend the first lifting cylinder and the second lifting cylinder to corresponding values ​​at the same time; If h0 is less than 0, the central control unit controls the hydraulic valve to shorten the first lifting cylinder and the second lifting cylinder to corresponding values ​​at the same time.

9. A large wind power tower clamp-type dump truck according to claim 7, characterized in that: The central control unit is connected to each amplitude detector and the hydraulic power assembly respectively, so as to make corrections when the reason why the tower barrel transportation process does not meet the standard is that the force for fixing the tower barrel in the horizontal direction does not meet the standard, wherein: If s0 is greater than 0, the central control unit extends the first hydraulic adjustment rod and the second hydraulic adjustment rod to corresponding values; If s0 is less than 0, the central control unit shortens the first hydraulic adjustment rod and the second hydraulic adjustment rod to corresponding values.

10. A large wind power tower clamp-type dump truck according to claim 7, characterized in that: The central control unit is connected to each amplitude detector and the hydraulic power assembly respectively, and is used to make corrections when the reason why the tower transportation process does not meet the standards is that the road conditions do not meet the standards, reduce the speed of the tower transport vehicle to a preset value, and make three judgments on whether the tower transportation process meets the standards based on the latest results of each amplitude detector. Among them, if the three judgment results of the transportation process of the tower still do not meet the standards, the central control unit controls the tower transport vehicle to stop urgently and adjusts the tightening torque of the first hydraulic adjustable distance flange and the second hydraulic adjustable distance flange.

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