An integrated transmission system assembly precision control device and method thereof

Abstract

The present invention discloses an integrated transmission system assembly precision control device and method thereof, comprising an elastic support connected to a fan frame for fixing a gearbox torque arm, a first bracket whose first end is installed on the gearbox torque arm, a second bracket installed on an elastic base of the elastic support, a displacement sensor installed on the second end of the first bracket, and a controller connected to the displacement sensor, wherein the first bracket is an L-shaped bracket, the second end of the first bracket is parallel to the bottom surface of the second bracket, the second end of the first bracket is perpendicular to the first end, a preset displacement value is preset in the controller, the displacement sensor is used to detect the actual displacement value between the second end of the first bracket and the second bracket, the controller is used to receive the actual displacement value and compare whether the actual displacement value is less than the preset displacement value, and if not, adjust the spacing between the elastic support and the fan frame. Controlling the precision according to the corresponding method is helpful to improve the fan assembly process and improve the assembly precision and reliability of the gearbox.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation equipment, and in particular to an integrated transmission system assembly precision control device and method thereof. Background Art

[0002] With the rise of renewable energy and concerns about carbon emissions, offshore wind power generation has received widespread attention as an important component of clean energy. The gearbox of an offshore wind turbine is the core component that converts wind energy into electrical energy, but it is also one of the components most susceptible to high loads and harsh marine environments. Therefore, the design and assembly of the gearbox has become critical and requires continuous improvement to improve performance, reliability and reduce maintenance costs.

[0003] Traditional gearbox supports usually use rigid brackets, which fix the gearbox to the wind turbine frame. However, such rigid brackets have limitations when facing the vibration, load and wind load of offshore wind turbines. In recent years, gearbox elastic support systems have gradually attracted attention. This support system uses elastic elements, such as springs or shock absorbers, to reduce the vibration and impact load on the gearbox, thereby improving the reliability and performance of the gearbox.

[0004] However, this design brings about the problem of precision control in the wind turbine assembly process. For example, when assembling the gearbox of a two-point supported offshore wind turbine in the assembly workshop, the gearbox torque arm is fixed to the frame by the elastically supported upper and lower liquid composite springs. After the wind turbine is hung on the wind wheel at the whole machine hoisting site, the transmission system will be slightly warped by the wind wheel gravity, and the upper liquid composite spring will be further compressed. This will reduce the positioning accuracy of the gearbox in the wind turbine transmission chain, thereby affecting its life and performance.

[0005] At present, the existing wind turbine torque arm displacement detection device and elastic failure assessment method use displacement sensors to detect the displacement of the gearbox torque arm, calculate the stiffness of the elastic support through the displacement change value, and use this as a basis for elastic support failure assessment. However, this patent only uses the displacement sensor for elastic support failure assessment, without considering that the sensor can also monitor the status of the gearbox during assembly, and use the displacement data as a reference for improving the gearbox assembly process.

[0006] In summary, how to effectively solve the problem that the assembly accuracy and reliability of the gearbox cannot be effectively improved is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0007] An object of the present invention is to provide an integrated transmission system assembly accuracy control device. When the integrated transmission system assembly accuracy control device determines that the accuracy is insufficient, the accuracy can be controlled according to a corresponding method, which is helpful to improve the fan assembly process and improve the assembly accuracy and reliability of the gear box. Another object of the present invention is to provide a control method applied to the above-mentioned integrated transmission system assembly accuracy control device, and its beneficial effects are the same as those of the integrated transmission system assembly accuracy control device.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] An integrated transmission system assembly precision control device comprises an elastic support whose bottom surface is connected to a fan frame for fixing a gear box torque arm, a first bracket whose first end is mounted on the gear box torque arm, a second bracket mounted on an elastic base of the elastic support, a displacement sensor mounted on the second end of the first bracket, and a controller connected to the displacement sensor signal, wherein the first bracket is an L-shaped bracket, the second end of the first bracket is parallel to the bottom surface of the second bracket, the second end of the first bracket is perpendicular to the first end, a preset displacement value is preset in the controller, the displacement sensor is used to detect the actual displacement value between the second end of the first bracket and the second bracket, and the controller is used to receive the actual displacement value and compare whether the actual displacement value is less than the preset displacement value, and if not, adjust the distance between the elastic base and the fan frame.

[0010] Optionally, the elastic support includes an elastic base whose bottom surface is connected to the fan frame, a plurality of rigid brackets installed on the elastic base, and an upper liquid composite spring and a lower liquid composite spring respectively connected to the upper and lower ends of the gear box torque arm.

[0011] Optionally, a gasket for adjusting the distance between the elastic base and the fan frame is further included, and a thickness of the gasket is equal to the difference between the actual displacement value and the preset displacement value.

[0012] Optionally, an alarm connected to the controller is also included.

[0013] Optionally, the first end of the first bracket has two bracket mounting holes, and the second end has a sensor mounting hole.

[0014] Optionally, the second bracket is arc-shaped, and each end of the arc segment has a bracket connecting hole.

[0015] Optionally, a middle portion of the arc segment of the second bracket has an outwardly protruding horizontal plate, and the horizontal plate corresponds to the second end of the first bracket.

[0016] The present invention further provides a control method for the integrated transmission system assembly accuracy control device as described in any one of the above, comprising the steps of:

[0017] Adjust the second end of the first bracket to be parallel to the second bracket;

[0018] Installing a displacement sensor on the second end of the first bracket;

[0019] Controlling the displacement sensor to detect an actual displacement value between the second end of the first bracket and the second bracket;

[0020] receiving the actual displacement value detected by the displacement sensor;

[0021] Compare whether the actual displacement value is less than a preset displacement value, if not, adjust the distance between the elastic base and the fan frame, and the controller is preset with a preset displacement value.

[0022] Optionally, the adjusting the distance between the elastic base and the fan rack specifically includes:

[0023] A gasket is placed between the elastic base and the fan frame, and the thickness of the gasket is equal to the difference between the actual displacement value and the preset displacement value.

[0024] Optionally, the step of adjusting the second end of the first bracket to be parallel to the second bracket comprises:

[0025] The first end of the first bracket is mounted on the gear box torque arm, and the second bracket is mounted on the elastic base.

[0026] The integrated transmission system assembly precision control device provided by the present invention comprises an elastic support, a first bracket, a second bracket, a displacement sensor and a controller. The elastic base of the elastic support is connected to the fan frame, specifically, it can be connected by bolts, and the connection is detachable, and the connection and disassembly are convenient. The gearbox torque arm is fixed on the elastic support, and the gearbox torque arm is installed and fixed on the fan frame by the upper and lower liquid composite springs of the elastic support, so as to reduce the vibration and impact load on the gearbox, thereby improving the reliability and performance of the gearbox.

[0027] The first bracket is an L-shaped bracket, the second end of the first bracket is perpendicular to the first end, the first end of the first bracket is along the vertical direction, and the second end is along the horizontal direction. The first end of the first bracket is attached to the surface of the gear box torque arm and is installed on the gear box torque arm. The second bracket is installed on the elastic base, and the second end of the first bracket is parallel to the bottom surface of the second bracket.

[0028] The displacement sensor is installed at the second end of the first bracket, and the installation surface of the displacement sensor is along the horizontal direction. The displacement sensor is used to detect the actual displacement value between the second end of the first bracket and the second bracket.

[0029] The controller is connected to the displacement sensor signal. A preset displacement value is preset in the controller. The controller receives the actual displacement value and compares whether the actual displacement value is less than the preset displacement value. If not, the distance between the elastic base and the fan frame is adjusted.

[0030] The integrated transmission system assembly accuracy control device provided by the present invention adopts a double-bracket structure to install a displacement sensor at the torque arm, and uses the displacement sensor to monitor the assembly process of the fan gearbox. It can monitor the vertical displacement changes of the gearbox torque arm during the fan assembly process, and set the assembly accuracy judgment standard in combination with the technical requirements of the fan components to determine the assembly positioning accuracy of the gearbox; when the judgment accuracy is insufficient, the assembly accuracy can be controlled according to the corresponding methods and requirements. Considering that the sensor can also monitor the status of the gearbox during the assembly process, and use the displacement data as a reference for improving the gearbox assembly process, it is helpful to improve the fan assembly process and improve the assembly accuracy and reliability of the gearbox.

[0031] The present invention also provides a control method for the integrated transmission system assembly accuracy control device applied to any one of the above items, comprising the steps of:

[0032] Adjust the second end of the first bracket to be parallel to the second bracket;

[0033] Mounting the displacement sensor on the second end of the first bracket;

[0034] Control the displacement sensor to detect an actual displacement value between the second end of the first bracket and the second bracket;

[0035] Receiving an actual displacement value detected by a displacement sensor;

[0036] Compare whether the actual displacement value is less than the preset displacement value. If not, adjust the distance between the elastic base and the fan frame. The preset displacement value is preset in the controller.

[0037] The present invention proposes an integrated transmission system assembly accuracy control method, which can monitor the vertical displacement change of the gear box torque arm during the fan assembly process, determine the assembly positioning accuracy of the gear box, and perform assembly accuracy control according to requirements, which is helpful to improve the fan assembly process and enhance the assembly accuracy and reliability of the gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of an integrated transmission system assembly precision control device provided in a specific embodiment of the present invention;

[0040] Figure 2 for Figure 1 A schematic diagram of the structure of the first bracket;

[0041] Figure 3 for Figure 1 A schematic diagram of the structure of the second bracket;

[0042] Figure 4 The present invention is a flowchart of an integrated transmission system assembly precision control method provided in a specific implementation manner of the present invention.

[0043] The following are marked in the accompanying drawings:

[0044] Rigid bracket 1, gear box torque arm 2, lower liquid composite spring 3, first bracket 4, second bracket 5, elastic base 6, bracket mounting hole 41, sensor mounting hole 42, bracket connecting hole 51. DETAILED DESCRIPTION

[0045] The core of the present invention is to provide an integrated transmission system assembly accuracy control device. When the integrated transmission system assembly accuracy control device determines that the accuracy is insufficient, the accuracy can be controlled according to the corresponding method, which is helpful to improve the fan assembly process and improve the assembly accuracy and reliability of the gear box; another core of the present invention is to provide a control method applied to the above-mentioned integrated transmission system assembly accuracy control device, and its beneficial effects are the same as the beneficial effects of the integrated transmission system assembly accuracy control device.

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Please refer to Figures 1 to 3 , Figure 1A schematic diagram of the structure of an integrated transmission system assembly precision control device provided in a specific embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the first bracket; Figure 3 for Figure 1 Schematic diagram of the structure of the second bracket.

[0048] In a specific embodiment, the integrated transmission system assembly accuracy control device provided by the present invention includes an elastic support whose bottom surface is connected to the fan frame for fixing the gear box torque arm 2, a first bracket 4 installed on the gear box torque arm 2 at the first end, a second bracket 5 installed on the elastic base 6 of the elastic support, a displacement sensor installed at the second end of the first bracket 4, and a controller connected to the displacement sensor signal, the first bracket 4 is an L-shaped bracket, the second end of the first bracket 4 is parallel to the bottom surface of the second bracket 5, the second end of the first bracket 4 is perpendicular to the first end, a preset displacement value is preset in the controller, the displacement sensor is used to detect the actual displacement value between the second end of the first bracket 4 and the second bracket 5, the controller is used to receive the actual displacement value and compare whether the actual displacement value is less than the preset displacement value, if not, adjust the distance between the elastic base 6 and the fan frame.

[0049] In the above structure, the integrated transmission system assembly accuracy control device includes an elastic support, a first bracket 4, a second bracket 5, a displacement sensor and a controller.

[0050] The elastic base 6 of the elastic support is connected to the fan frame, and can be specifically connected by bolts, which is detachable and easy to connect and disassemble. The gear box torque arm 2 is fixed on the elastic support, and the gear box torque arm 2 is installed and fixed on the fan frame by the upper and lower liquid composite springs of the elastic support to reduce the vibration and impact load on the gear box, thereby improving the reliability and performance of the gear box.

[0051] The first bracket 4 is an L-shaped bracket, the second end of the first bracket 4 is perpendicular to the first end, the first end of the first bracket 4 is along the vertical direction, and the second end is along the horizontal direction. The first end of the first bracket 4 is attached to the surface of the gearbox torque arm 2 and is installed on the gearbox torque arm 2. The second bracket 5 is installed on the elastic base 6, and the second end of the first bracket 4 is parallel to the bottom surface of the second bracket 5.

[0052] The displacement sensor is installed at the second end of the first bracket 4 , and the installation surface of the displacement sensor is along the horizontal direction. The displacement sensor is used to detect the actual displacement value between the second end of the first bracket 4 and the second bracket 5 .

[0053] The controller is connected to the displacement sensor signal. A preset displacement value is preset in the controller. The controller receives the actual displacement value and compares whether the actual displacement value is less than the preset displacement value. If not, the distance between the elastic base 6 and the fan frame is adjusted.

[0054] Specifically, the first bracket 4 is connected and fixed to the displacement sensor and the gearbox torque arm 2 respectively, so that the sensor can move vertically synchronously with the gearbox torque arm 2. The displacement change between the displacement sensor and the plane of the second bracket 5 is monitored by the sensor from the time when the gearbox is assembled and fixed on the wind turbine frame to the time when the wind turbine is hoisted with the wind wheel, so as to obtain the vertical displacement change of the gearbox torque arm 2 before and after the wind wheel is hoisted. According to the technical requirements for the assembly of the wind turbine gearbox, relevant judgment standards are set, and it is determined whether the assembly accuracy of the gearbox meets the technical requirements after the wind turbine is hoisted with the wind wheel according to the size of the displacement change. If the assembly accuracy meets the requirements, no adjustment is made. If it does not meet the requirements, a gasket of corresponding height is customized according to the excess size of the assembly accuracy. When assembling the gearbox in the workshop, it is inserted between the elastic base 6 and the wind turbine frame to increase the height of the elastic support, thereby increasing the height of the gearbox torque arm 2, until the displacement change is measured again and the gearbox assembly accuracy meets the requirements.

[0055] The integrated transmission system assembly accuracy control device provided by the present invention adopts a double-bracket structure to install a displacement sensor at the torque arm, and uses the displacement sensor to monitor the assembly process of the fan gearbox. It can monitor the vertical displacement changes of the gearbox torque arm 2 during the fan assembly process, and set the assembly accuracy judgment standard in combination with the technical requirements of the fan components to determine the assembly positioning accuracy of the gearbox; when the judgment accuracy is insufficient, the assembly accuracy can be controlled according to the corresponding methods and requirements. Considering that the sensor can also monitor the status of the gearbox during the assembly process, and use the displacement data as a reference for improving the gearbox assembly process, it is helpful to improve the fan assembly process and improve the assembly accuracy and reliability of the gearbox.

[0056] Based on the above specific embodiment, the elastic support includes an elastic base 6 whose bottom surface is connected to the fan frame, a plurality of rigid brackets 1 installed on the elastic base 6, and an upper liquid composite spring and a lower liquid composite spring 3 respectively connected to the upper and lower ends of the gear box torque arm 2.

[0057] In a specific embodiment, the elastic support is an assembly precision control device, including an elastic base 6, a rigid bracket 1, an upper liquid composite spring and a lower liquid composite spring 3. The bottom surface of the elastic base 6 is connected to the fan frame. A plurality of rigid brackets 1 are installed on the elastic base 6. The rigid bracket 1 is along the vertical direction. The upper liquid composite spring and the lower liquid composite spring 3 are respectively connected to the upper end and the lower end of the gear box torque arm 2. The rigid bracket 1 vertically positions the torque arm through the upper liquid composite spring and the lower liquid composite spring 3. The displacement sensor is installed in the sensor mounting hole 42 in the first bracket 4. It is required that the sensor mounting surface of the first bracket 4 and the surface where the connecting hole of the second bracket 5 is located are parallel to each other and perpendicular to the surface where the bracket mounting hole 41 is located, so that the displacement sensor can use the elastic base 6 as a base to monitor the vertical displacement change of the gear box torque arm 2.

[0058] In another more reliable embodiment, based on any of the above embodiments, it further includes a gasket for adjusting the distance between the elastic base 6 and the fan frame, and the thickness of the gasket is equal to the difference between the actual displacement value and the preset displacement value.

[0059] In a specific embodiment, there are multiple gaskets, each of which is relatively thin. Gaskets of appropriate thickness and quantity are selected according to the difference between the actual displacement value and the preset displacement value. The gaskets are placed between the elastic base 6 and the fan frame, and the distance between the elastic base 6 and the fan frame is adjusted. The adjustment is precise and easy to operate.

[0060] In another more reliable embodiment, based on any of the above embodiments, it also includes an alarm connected to the controller.

[0061] In a specific embodiment, the alarm is connected to the controller. When the actual displacement value is not less than the preset displacement value, the alarm issues an alarm prompt, which can be a sound prompt or a flashing light prompt, to remind the operator to adjust the distance between the elastic base 6 and the fan frame in time to improve the assembly accuracy and reliability of the gear box.

[0062] In another more reliable embodiment, based on any one of the above embodiments, the first end of the first bracket 4 has two bracket mounting holes 41 , and the second end has a sensor mounting hole 42 .

[0063] In a specific embodiment, the first bracket 4 has two mounting threaded holes, corresponding to the two threaded holes in the gearbox torque arm 2. In other words, according to the size of the gearbox torque arm 2, the first bracket 4 is determined to be L-shaped, with a mounting hole surface length of 263 mm and a width of 120 mm, and contains two M12 mounting threaded holes, corresponding to the gearbox torque arm 2 mounting surface containing two M12 threaded holes, and the sensor mounting surface containing one M32 mounting threaded hole. Bolt connection is adopted, and the two mounting holes of the first bracket 4 are used to fix the first bracket 4 on the surface of the gearbox torque arm 2, which is convenient for connection.

[0064] On the basis of the above-mentioned specific embodiments, the second bracket 5 is arc-shaped, and each end of the arc segment has a bracket connecting hole 51 .

[0065] In a specific embodiment, the second bracket 5 is arc-shaped, with smooth transition and no edges and corners, which is convenient for connection. The second bracket 5 has two M22 mounting threaded holes, corresponding to the two M22 threaded holes in the base of the rigid bracket 1. Bolt connection is adopted, and the two connection holes of the second bracket 5 are used to bolt the second bracket 5 to the base of the rigid bracket 1.

[0066] On the basis of the above-mentioned specific embodiments, the middle part of the arc section of the second bracket 5 has a protruding horizontal plate, and the horizontal plate corresponds to the second end of the first bracket 4 .

[0067] In a specific embodiment, the horizontal plate protrudes outward, and the horizontal plate is of the same size as the second end of the first bracket 4. The horizontal plate is located directly below the second end of the first bracket 4, which facilitates observation and measurement of the distance between the second bracket 5 and the second end of the first bracket 4, and the measurement data is more accurate.

[0068] Please refer to Figure 4 , Figure 4 The flowchart of the integrated transmission system assembly precision control method provided in a specific embodiment of the present invention. The present invention also provides a control method of the integrated transmission system assembly precision control device applied to any of the above items, which may include the following steps:

[0069] S110, adjusting the second end of the first bracket 4 to be parallel to the second bracket 5;

[0070] S120, installing the displacement sensor on the second end of the first bracket 4;

[0071] S130, controlling the displacement sensor to detect an actual displacement value between the second end of the first bracket 4 and the second bracket 5;

[0072] S140, receiving an actual displacement value detected by the displacement sensor;

[0073] S150, comparing whether the actual displacement value is less than the preset displacement value, if not, adjusting the distance between the elastic base 6 and the fan frame, and the preset displacement value is preset in the controller.

[0074] For ease of description, the above steps are combined for explanation below.

[0075] Device design principle and assembly accuracy control method: The first bracket 4 is connected and fixed to the displacement sensor and the gearbox torque arm 2 respectively, so that the sensor can move vertically synchronously with the gearbox torque arm 2. The displacement change between the sensor and the second bracket 5 plane after the gearbox is assembled and fixed on the wind turbine frame is monitored by the sensor, and the wind turbine is hoisted with the wind wheel, so as to obtain the vertical displacement change of the gearbox torque arm 2 before and after the wind wheel is hoisted. According to the technical requirements for the assembly of the wind turbine gearbox, relevant judgment standards are set, and the gearbox assembly accuracy is determined according to the size of the displacement change after the wind turbine is hoisted. If the assembly accuracy meets the requirements, no adjustment is made. If it does not meet the requirements, a gasket of the corresponding height is customized according to the size of the excess of the assembly accuracy. When assembling the gearbox in the workshop, it is inserted between the elastic base 6 and the wind turbine frame to increase the height of the elastic base 6, thereby increasing the height of the gearbox torque arm 2, until the displacement change is measured again, and the gearbox assembly accuracy meets the requirements.

[0076] In a specific embodiment, the integrated transmission system assembly precision control device includes a rigid bracket 1, a gear box torque arm 2, a liquid composite spring, a first bracket 4, a second bracket 5 and a displacement sensor.

[0077] The displacement sensor is installed in the sensor mounting hole 42 in the first bracket 4. It is required that the sensor mounting surface of the first bracket 4 and the surface where the connecting hole of the second bracket 5 is located are parallel to each other and perpendicular to the surface where the mounting hole of the first bracket 4 is located, so that the displacement sensor can monitor the vertical displacement change of the gearbox torque arm 2 with the elastic base 6 as the base.

[0078] According to the length of the mounting hole of the first bracket 4 and the height of the liquid composite spring, the displacement sensor is required to have a range of more than 15 mm, an accuracy of 0.1 mm, a clear correspondence between displacement and current and voltage, and the sensor signal is connected to the fan monitoring system.

[0079] The assembly precision control method of the integrated transmission system, according to the technical requirements of the fan liquid composite spring, its elastic deformation displacement change needs to be less than 2mm, and based on this, the gearbox assembly precision judgment standard H is set to 2mm.

[0080] Further, starting from when the gearbox assembly is fixed to the fan frame and monitored by the displacement sensor, until after the fan hoists the wind wheel, the displacement change S between the sensor and the plane of the second bracket 5 is measured. If the measured displacement change S is 1.5 mm and S < H, it is determined that the assembly accuracy is qualified. If the displacement change S measured by the sensor is 2.6 mm and S ≥ H, it is determined that the assembly accuracy is unqualified, and the assembly accuracy of this type of fan needs to be adjusted.

[0081] Further, when S = 2.6 mm is measured, the following measures are taken to control the assembly accuracy: It is calculated that S - H = 0.6 mm. Based on this, a gasket with a height of 0.6 mm is customized. When the rigid bracket 1 and the frame are assembled in the assembly workshop of the next fan of the same type, the gasket is inserted between the elastic base 6 and the fan frame. After the wind wheel of this fan is hoisted, the displacement change S is measured again. If S < H is measured, the accuracy is qualified and no adjustment is required. If S ≥ H, the same method is repeated to adjust the accuracy until S < H is measured.

[0082] The present invention proposes an integrated transmission system assembly accuracy control method, which can monitor the vertical displacement change of the gearbox torque arm 2 during the fan assembly process, determine the assembly positioning accuracy of the gearbox, and perform assembly accuracy control according to requirements, which helps to improve the fan assembly process and improve the assembly accuracy and reliability of the gearbox.

[0083] Based on the above various specific embodiments, in the above integrated transmission system assembly accuracy control device, adjusting the distance between the elastic base 6 and the fan frame may specifically include:

[0084] Pad a gasket between the bottom surface of the elastic base 6 and the fan frame, and the thickness of the gasket is equal to the difference between the actual displacement value and the preset displacement value.

[0085] In a specific embodiment, the number of gaskets is multiple, and the thickness of each gasket is relatively thin. According to the difference between the actual displacement value and the preset displacement value, gaskets with appropriate thickness and quantity are selected and padded between the elastic base 6 and the fan frame to adjust the distance between the elastic base 6 and the fan frame, with accurate adjustment and convenient operation.

[0086] Based on the above various specific embodiments, before adjusting the second end of the first bracket 4 to be parallel to the second bracket 5, it may include:

[0087] Install the first end of the first bracket 4 on the gearbox torque arm 2, and install the second bracket 5 on the elastic base 6.

[0088] In a specific embodiment, the first bracket 4 has two mounting threaded holes, corresponding to the two threaded holes in the gearbox torque arm 2. In other words, according to the size of the gearbox torque arm 2, the first bracket 4 is determined to be L-shaped, with a mounting hole surface length of 263 mm and a width of 120 mm, and contains two M12 mounting threaded holes, corresponding to the gearbox torque arm 2 mounting surface containing two M12 threaded holes, and the sensor mounting surface containing one M32 mounting threaded hole. Bolt connection is adopted, and the two mounting holes of the first bracket 4 are used to fix the first bracket 4 on the surface of the gearbox torque arm 2, which is convenient for connection.

[0089] Similarly, the second bracket 5 is arc-shaped, with smooth transition and no edges and corners, which is easy to connect. The second bracket 5 has two M22 mounting threaded holes, corresponding to the two M22 threaded holes in the base of the rigid bracket 1. Bolt connection is adopted, and the two connection holes of the second bracket 5 are used to bolt the second bracket 5 to the base of the rigid bracket 1.

[0090] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0091] The above is a detailed introduction to the integrated transmission system assembly precision control device and method provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this article, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated transmission system assembly precision control device, It is characterized in that The invention comprises an elastic support whose bottom surface is connected to a fan frame and is used to fix a gearbox torque arm (2), a first bracket (4) whose first end is mounted on the gearbox torque arm (2), a second bracket (5) mounted on an elastic base (6) of the elastic support, a displacement sensor mounted on the second end of the first bracket (4), and a controller connected to the displacement sensor signal; and further comprises a gasket for adjusting the distance between the elastic base (6) and the fan frame, the thickness of the gasket being equal to the difference between an actual displacement value and a preset displacement value, the first bracket (4) being an L-shaped bracket, the second bracket (5) being arc-shaped, the second end of the first bracket (4) being parallel to the bottom surface of the second bracket (5), the second end of the first bracket (4) being perpendicular to the first end, the controller being preset with a preset displacement value, the displacement sensor being used to detect an actual displacement value between the second end of the first bracket (4) and the second bracket (5), the controller being used to receive the actual displacement value and compare whether the actual displacement value is less than the preset displacement value, and if not, adjusting the distance between the elastic base (6) and the fan frame. By using a sensor to monitor the displacement change between the displacement sensor and the plane of the second bracket (5) from the time when the gearbox is assembled and fixed on the wind turbine frame to the time when the wind turbine is hoisted with the wind wheel, the vertical displacement change of the gearbox torque arm (2) before and after the wind wheel is hoisted is obtained. According to the magnitude of the displacement change, it is determined whether the assembly accuracy of the gearbox meets the technical requirements after the wind turbine is hoisted with the wind wheel. If it does not meet the requirements, a gasket of a corresponding height is customized according to the magnitude of the excess of the assembly accuracy. When the gearbox is assembled in the workshop, the gasket is inserted between the elastic base (6) and the wind turbine frame to increase the height of the elastic support, thereby increasing the height of the gearbox torque arm (2), until the displacement change is measured again and the assembly accuracy of the gearbox meets the requirements; According to the length of the mounting hole surface of the first bracket (4) and the height of the liquid composite spring, the displacement sensor is required to have a range of more than 15 mm, an accuracy of 0.1 mm, a clear correspondence between displacement and current and voltage, and the sensor signal is connected to the fan monitoring system.

2. The integrated transmission system assembly precision control device according to claim 1, It is characterized in that The elastic support comprises an elastic base (6) whose bottom surface is connected to the fan frame, a plurality of rigid brackets (1) mounted on the elastic base (6), and an upper liquid composite spring and a lower liquid composite spring (3) respectively connected to the upper and lower ends of the gear box torque arm (2).

3. The integrated transmission system assembly precision control device according to any one of claims 1-2, It is characterized in that The first end of the first bracket (4) has two bracket mounting holes (41), and the second end has a sensor mounting hole (42).

4. The integrated transmission system assembly precision control device according to claim 3, It is characterized in that Two ends of the circular arc section of the second bracket (5) each have a bracket connection hole (51).

5. The integrated transmission system assembly precision control device according to claim 4, It is characterized in that The middle part of the circular arc section of the second bracket (5) has an outwardly protruding horizontal plate, and the horizontal plate corresponds to the second end of the first bracket (4).

6. A control method for the integrated transmission system assembly accuracy control device according to any one of claims 1 to 5, It is characterized in that Includes steps: Adjusting the second end of the first bracket (4) to be parallel to the second bracket (5); Mounting a displacement sensor on the second end of the first bracket (4); Using a displacement sensor to monitor the displacement change between the displacement sensor and the plane of the second bracket (5) from the time the gear box is assembled and fixed on the wind turbine frame to the time the wind turbine is hoisted with the wind wheel, the vertical displacement change of the gear box torque arm (2) before and after the wind wheel is hoisted is obtained, and the displacement sensor is controlled to detect the actual displacement value between the second end of the first bracket (4) and the second bracket (5); receiving the actual displacement value detected by the displacement sensor; Comparing whether the actual displacement value is less than the preset displacement value, if not, a gasket of corresponding height is customized according to the excess of assembly precision, and when assembling the gearbox in the workshop, the gasket is placed between the elastic base (6) and the fan frame, the thickness of the gasket being equal to the difference between the actual displacement value and the preset displacement value, thereby increasing the height of the elastic support and thereby increasing the height of the gearbox torque arm (2).

7. The integrated transmission system assembly precision control device according to claim 6, It is characterized in that The step of adjusting the second end of the first bracket (4) to be parallel to the second bracket (5) comprises: The first end of the first bracket (4) is mounted on the gear box torque arm (2), and the second bracket (5) is mounted on the elastic base (6).

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