Wind power female mold gap monitoring system

Abstract

The present invention discloses a wind power female mold gap monitoring system, which includes: a wind power blade mold, a clamping system, a distance sensor, a jack, a signal module and a display. The clamping system and the jack are sequentially installed at intervals in the middle of two wind power blade molds. In the mold closing state, the upper and lower connecting plate groups are respectively fixed on both sides of each flip position section of the mold by welding, and then the jack is installed by tooling. The jack has a guiding role in the mold closing to prevent overall dislocation and facilitate local adjustment. When the mold is opened, a lifting action is performed to share the function of the flip arm. The mold opening force distance sensor of the overall PS side female mold is fixed on the clamping system. The distance sensor sends the gap distance numerical signal between the two wind power blade molds to the signal module, and the signal module processes the numerical value and sends it to the display. The system enables specific data to be displayed on the computer, and realizes the automation of mold closing gap data measurement through real-time monitoring.

Description

Technical Field

[0001] The invention relates to the field of wind turbine blade moulds, in particular to a wind power female mould clamping gap monitoring system. Background Art

[0002] Clean energy has become the unified direction of global development, which has led to the rise of wind power generation as one of the clean energy sources and its rapid development around the world. Wind has been used by people for a long time, mainly through windmills to pump water, grind flour, etc., and now people are interested in how to use wind to generate electricity. The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the speed of rotation through a speed increaser to drive the generator to generate electricity. According to the current wind power generation technology, it is possible to start generating electricity at a breeze speed of about three meters per second. Wind power generation is becoming a trend in the world because wind power generation has no fuel problem and does not produce radiation or air pollution.

[0003] With the continuous innovation of wind power technology, its power generation capacity is also increasing, making wind turbine blades longer and longer, and some even exceed 100 meters in length. The demand for large megawatt wind turbine blades has also increased the demand for large wind turbine molds. The overall heating and demoulding of large wind turbine molds is difficult and demanding, and all technical indicators need to be strictly controlled within a certain range. When the wind turbine blade mold is closed, in view of the extra length and width of the mold, in order to prevent the misalignment caused by the heating of the mold blade, control points need to be set evenly distributed on both sides of the mold flange. Each control point requires on-site quality inspection personnel to monitor the mold clearance data and record it manually to infer whether the misalignment data meets the tolerance requirements, and conduct on-site debugging to meet the technical indicator requirements. The tolerance requirements are extremely strict, and the basic tolerance range is between 1 and 2 mm.

[0004] In the existing technology, during the manufacturing process of wind turbine blade molds, customers have to set a large number of control points due to the excessive length and width of the molds, which takes a long time to record, consumes a lot of manpower and time. When on-site quality inspectors perform manual operations, data recording may be incorrect, missed, or duplicated, resulting in data distortion. When the wind turbine blade molds are closed on site, control points may be lost or the position may deviate during the operation, resulting in data invalidation. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to solve the deficiencies of the prior art and to provide a wind power female mold gap monitoring system so that specific data can be displayed on a computer and the mold gap data can be automatically measured through real-time monitoring.

[0006] Technical solution: In order to achieve the above purpose, the present invention discloses a wind power female mold gap monitoring system, which includes: a wind power blade mold, a clamping system, a distance sensor, a jack, a signal module and a display. The clamping system and the jack are installed in the middle of the two wind power blade molds in sequence. In the mold closing state, the upper and lower connecting plate groups are fixed on both sides of each flip position section of the mold by welding, and then the jack is installed by tooling. The jack has a guiding role in the mold closing to prevent overall dislocation and facilitate local adjustment. When the mold is opened, the jacking action is performed to share the mold opening force of the flip arm. The distance sensor of the overall PS side female mold is fixed on the clamping system. The distance sensor sends the gap distance numerical signal between the two wind power blade molds to the signal module, and the signal module processes the numerical value and sends it to the display.

[0007] As a further preferred embodiment of the present invention, the signal module presets a gap distance value of 0-20 mm.

[0008] As a further preferred embodiment of the present invention, an alarm is provided on the wind turbine blade mold.

[0009] As a further preferred embodiment of the present invention, the alarm is a vibration alarm, an acoustic alarm or an infrared alarm.

[0010] As a further preferred embodiment of the present invention, when the gap distance value between two wind turbine blade molds is greater than the gap distance value preset by the signal module, the alarm is activated.

[0011] As a further preferred embodiment of the present invention, the clamping system includes: a locking pin, a top plate group, a guide groove, a spring pressure plate, a compression spring, a bottom plate group and a clamping device, the top plate group is fixed to the flange on the wind turbine blade mold, the locking pin is fixed to the bottom of the top plate group, the bottom plate group is fixed to the flange on another wind turbine blade mold, the guide groove is located at the top of the bottom plate group, the compression spring is installed in the guide groove, the spring pressure plate is vertically fixed above the compression spring, and the locking device is installed on the bottom plate group.

[0012] As a further preference of the present invention, a distance sensor is installed on the base plate group, and the signal receiving part of the distance sensor is against the spring pressure plate. The spring pressure plate compresses the compression spring to trigger the distance sensor. The data is automatically calculated through the computer module to calculate the deviation value, perform self-check, and alarm when it exceeds the set value.

[0013] As a further preferred embodiment of the present invention, the locking device includes: an upper connecting shaft, a lower connecting shaft, a hook group, a cylinder and a cylinder connecting block. A limiting groove is provided on the base plate group. The upper connecting shaft passes through the limiting groove to fix the hook group on the base plate group. The lower connecting shaft passes through the limiting groove and the hook group to fix the cylinder connecting block on the hook group. A cylinder is provided below the cylinder connecting block.

[0014] As a further preferred embodiment of the present invention, the hook group is provided with a hook, and the hook group moves up and down under the action of the cylinder, so that the hook hooks the guide shaft or releases the guide shaft, and finally the upper connecting plate group and the lower connecting plate group are connected together.

[0015] When it is necessary to connect two wind turbine blade molds together, the jack located in the middle of the wind turbine blade molds gradually descends until the two wind turbine blade molds are about to touch each other, and the clamping pin is inserted into the guide groove. The hydraulic system works to control the movement of the piston rod of the hydraulic cylinder, so that the hook on the hook group hooks the clamping pin, and the piston rod of the hydraulic cylinder continues to make a return motion to lock the clamping pin, and finally the two wind turbine blade molds are clamped.

[0016] When the two wind turbine blade molds need to be loosened, the piston rod of the hydraulic cylinder connected to the hydraulic system extends, so that the hook on the hook group loosens the locking pin. After the piston rod of the hydraulic cylinder continues to extend so that the hook completely loosens the locking pin, the jack gradually rises to separate the two wind turbine blade molds.

[0017] As a further preferred embodiment of the present invention, the clamping system, distance sensor, jack, signal module and alarm are respectively connected to the PLC system.

[0018] An automatic mold gap measuring device is installed at fixed positions on both sides of each wind power mold, and a distance sensor is installed on the mold gap measuring device to read the mold gap value, convert the mold gap distance value into an analog signal, and transmit the signal to the analog signal module of the PLC. The PLC reads the analog data value, processes the value according to a pre-written PLC program, and finally displays the processed data on the human-machine interface (HMI). The displayed content includes the actual mold gap value specific to each mold gap sensor, the mold gap difference, and an output alarm function.

[0019] Beneficial effects: Compared with the prior art, the wind power female mold clamping gap monitoring system of the present invention has the following advantages:

[0020] 1. Through the coordination of distance sensors, signal modules, displays, alarms, clamping systems and jacks, the system can be used with a variety of molds, with strong flexibility and adaptability;

[0021] 2. The data from the distance sensor is sent to the display through the signal module, and the final data display will be fast and convenient, easy to read, record and archive;

[0022] 3. During the mold production process, when the mold section is found to be misaligned, the mold section position can be adjusted to control the misalignment size and gap of the mold section;

[0023] 3. The components of the system are easy to install, fast and easy to operate, which improves the work efficiency of operators, reduces labor costs, and improves the accuracy of records. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the installation position of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the clamping system;

[0026] Figure 3 It is the left side view of the clamping system;

[0027] Figure 4 Exploded view of the clamping device;

[0028] Figure 5 This is a schematic diagram of the installation position of the jack;

[0029] Figure 6 Flow chart for determining the value of mold clearance;

[0030] Figure 7 The process of mold gap detection. DETAILED DESCRIPTION

[0031] The present invention will be further explained below in conjunction with the accompanying drawings.

[0032] As shown in the accompanying drawings, a wind turbine female mold clamping gap monitoring system according to the present invention comprises: a wind turbine blade mold 1, a clamping system 2, a distance sensor 3, a jack 4, a signal module and a display 6, wherein the clamping system 2 and the jack 4 are sequentially installed at intervals in the middle of two wind turbine blade molds 1, the distance sensor 3 is fixed on the clamping system 2, the distance sensor 3 sends a gap distance numerical signal between the two wind turbine blade molds 1 to the signal module, and the signal module processes the numerical value and sends it to the display 6;

[0033] Example

[0034] A clamping system 2 and a jack 4 are installed at fixed positions on both sides of each wind power mold 1, and a distance sensor 3 is installed on the clamping system 2 to read the gap value of the mold closing. When the power button is turned on the display 6, the jack 4 connected to the display 6 through the PLC system starts to work, and then drops to a limited position and sends a signal to the PLC circuit. After receiving the signal, the PLC system sends a signal to the clamping system 2. The locking pin 23 presses down the spring pressure plate 24 during the mold closing process, and the spring pressure plate 24 compresses the compression spring 25 to trigger the distance sensor 3. The distance sensor 3 sends a signal to the signal module, and the signal module converts the distance value of the mold closing gap into an analog signal and transmits the signal to the analog signal module of the PLC. The PLC reads the analog data value, processes the value according to a pre-written PLC program, and finally displays the processed data on the display 6. The displayed content includes the actual mold closing gap value specific to each distance sensor 3, the difference in the mold closing gap, and the output alarm function. The signal module automatically calculates the deviation value and performs self-checking to determine whether it is within the limited value range.

[0035] If unqualified is detected, the distance exceeds the limit value range. When the gap exceeds the set value, an alarm is issued and the gap data is automatically recorded, and a signal is sent to the PLC system to control the clamping system 2 to loosen, and then the PLC system controls the clamping system 2 to adjust the gap. When the adjustment is completed, the PLC system sends a signal to the clamping system 2, and the clamping pin 23 presses the spring pressure plate 24 during the mold closing process to trigger the distance sensor 3. The signal module automatically calculates the deviation value again, and the operation is repeated until the gap reaches the limit value;

[0036] If the test is qualified, the system will automatically record the gap data and send a signal to the PLC system to control the clamping system 2 to release the signal, and the detection process is completed.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable technicians familiar with the technical field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind power female mold gap monitoring system, comprising: A wind turbine blade mould (1), characterized in that it further comprises: a clamping system (2), a distance sensor (3), a jack (4), a signal module and a display (6), wherein the clamping system (2) and the jack (4) are sequentially installed at intervals in the middle of two wind turbine blade moulds (1), the distance sensor (3) is fixed on the clamping system (2), the distance sensor (3) sends a numerical signal of the gap distance between the two wind turbine blade moulds (1) to the signal module, and the signal module processes the numerical value and sends it to the display (6); The clamping system (2) comprises: a mold locking pin (21), a top plate group (22), a guide groove (23), a spring pressure plate (24), a compression spring (25), a bottom plate group (26) and a clamping device, wherein the top plate group (22) is fixed to a flange on a wind turbine blade mold (1), the mold locking pin (21) is fixed to the bottom of the top plate group (22), the bottom plate group (26) is fixed to a flange on another wind turbine blade mold (1), the guide groove (23) is located at the top of the bottom plate group (26), the compression spring (25) is installed in the guide groove (23), the spring pressure plate (24) is vertically fixed above the compression spring (25), the clamping device is installed on the bottom plate group (26), and the signal module is preset with a gap distance value of 0-20 mm.

2. The wind power female mold gap monitoring system according to claim 1 is characterized by: The wind turbine blade mould (1) is provided with an alarm (5).

3. The wind power female mold gap monitoring system according to claim 2 is characterized by: The alarm (5) is a vibration alarm, an acoustic alarm or an infrared alarm.

4. The wind power female mold gap monitoring system according to claim 1 is characterized by: When the gap distance value between the two wind turbine blade moulds (1) is greater than the gap distance value preset by the signal module, the alarm is activated.

5. The wind power female mold gap monitoring system according to claim 1 is characterized by: A distance sensor (3) is mounted on the bottom plate group (26), and a signal receiving portion (31) of the distance sensor (3) abuts against the spring pressure plate (24).

6. The wind power female mold gap monitoring system according to claim 1 is characterized by: The clamping device comprises: an upper connecting shaft (201), a lower connecting shaft (211), a hook group (231), an oil cylinder (241) and an oil cylinder connecting block (251); a limiting groove (261) is provided on the bottom plate group (26); the upper connecting shaft (201) passes through the limiting groove (261) to fix the hook group (231) on the bottom plate group (26); the lower connecting shaft (211) passes through the limiting groove (261) and the hook group (233) to fix the oil cylinder connecting block (251) on the hook group (231); and an oil cylinder (241) is provided below the oil cylinder connecting block (251).

7. The wind power female mold gap monitoring system according to claim 6 is characterized by: The hook group (231) is provided with a hook (28).

8. The wind power female mold gap monitoring system according to claim 1 is characterized by: The clamping system (2), distance sensor (3), jack (4), signal module and alarm (5) are respectively connected to the PLC system.

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