Gearbox elastic support pin shaft detection device and gearbox

Abstract

The utility model relates to the technical field of gear box detection, and provides a gear box elastic supporting pin shaft detection device and a gear box, and the gear box elastic supporting pin shaft detection device comprises a first detection plate arranged at the first end of a gear box elastic supporting pin shaft; the second detection plate is arranged at the second end of the gear box elastic supporting pin shaft and is connected with the reference ground; an input pin and a common pin of the first relay are used for being connected with a power supply, and a ground wire pin of the first relay is used for being connected with the first detection board; the signal detector is connected with a normally open pin of the first relay, and the signal detector is used for generating a first alarm signal under the condition that a signal of the normally open pin of the first relay is not detected; and the alarm is connected with the signal detector, and the alarm is used for giving an alarm according to the first alarm signal. And when an abnormal condition is detected, an alarm is given, so that a maintainer can carry out planned maintenance in time.

Description

Technical Field

[0001] The present disclosure relates to the technical field of gearbox detection, and in particular to a gearbox elastic support pin detection device and a gearbox. Background Art

[0002] As the core component of a doubly-fed asynchronous gearbox, the gearbox's stability and reliability are directly related to the operating efficiency of the wind turbine. As a key supporting structure for the gearbox, the elastic support buffers the power transmitted from the rotor side, ensuring the gearbox's stability and reliability under complex operating conditions.

[0003] In practical applications, how to effectively check the integrity of the elastic support pin and detect abnormal conditions of the gearbox elastic support pin, such as pin breakage or cracks, has become an important issue that needs to be faced in planned maintenance of the unit. Utility Model Content

[0004] The purpose of the present disclosure is to provide a gearbox elastic support pin shaft detection device and a gearbox to solve the above-mentioned problems.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a gearbox elastic support pin shaft detection device, the gearbox elastic support pin shaft detection device comprising:

[0006] A first detection plate provided at a first end of the elastic support pin of the gear box;

[0007] a second detection plate provided at the second end of the elastic support pin of the gear box, the second detection plate being connected to a reference ground;

[0008] a first relay having an input pin, a ground pin, a common pin, a normally open pin, and a normally closed pin, wherein the input pin and the common pin of the first relay are used to connect to a power supply, and the ground pin of the first relay is used to connect to the first detection board;

[0009] a signal detector connected to the normally open pin of the first relay, and configured to generate a first alarm signal when no signal from the normally open pin of the first relay is detected;

[0010] An alarm is connected to the signal detector, and is used to sound an alarm according to the first alarm signal.

[0011] Optionally, the gear box elastic support pin detection device further includes:

[0012] a third detection plate provided at a third end of the elastic support pin of the gear box;

[0013] a fourth detection plate provided at a fourth end of the elastic support pin of the gear box, the fourth detection plate being connected to a reference ground;

[0014] A second relay has an input pin, a ground pin, a common pin, a normally open pin, and a normally closed pin, wherein the input pin and the common pin of the second relay are used to connect to a power supply, and the ground pin of the second relay is used to connect to the third detection board;

[0015] a signal detector connected to the normally open pin of the second relay, and configured to generate a second alarm signal when no signal from the normally open pin of the second relay is detected;

[0016] An alarm is connected to the signal detector, and is used to sound an alarm according to the second alarm signal.

[0017] Optionally, the first relay is an electromagnetic relay.

[0018] Optionally, the model of the electromagnetic relay is LGPLCK200.

[0019] Optionally, the gear box elastic support pin detection device further includes:

[0020] A display is connected to the signal detector and is used to display the detection result of the signal detector.

[0021] Optionally, the display includes at least one of a liquid crystal screen and a digital tube.

[0022] Optionally, the alarm includes at least one of a buzzer and an alarm light.

[0023] Optionally, the gear box elastic support pin detection device further includes:

[0024] A power supply module is connected to the first relay, the signal detector, and the alarm.

[0025] Optionally, the power module includes at least one of a farad capacitor, a rechargeable battery and a power adapter.

[0026] The present disclosure also provides a gearbox, comprising:

[0027] Gearbox elastic support pin;

[0028] And the gear box elastic support pin shaft detection device provided by any of the above items.

[0029] Through the above technical solution, a first detection plate is set at the first end of the elastic support pin of the gearbox; a second detection plate is set at the second end of the elastic support pin of the gearbox; a first relay has an input pin, a ground pin, a common pin, a normally open pin and a normally closed pin, the input pin and the common pin of the first relay are used to connect to the power supply, and the ground pin of the first relay is used to connect to the first detection plate; a signal detector, the signal detector is connected to the normally open pin of the first relay, the signal detector is used to generate a first alarm signal when the signal of the normally open pin of the first relay is not detected; an alarm, the alarm is connected to the signal detector, and the alarm is used to alarm according to the first alarm signal. The abnormal situation of the elastic support pin of the gearbox is fed back through the resistance value of the elastic support pin of the gearbox, such as the pin being broken or cracked, and an alarm is issued in the abnormal situation of the elastic support pin of the gearbox, so that maintenance personnel can carry out planned maintenance in time, greatly improving the operating safety factor of the gearbox and preventing safety accidents of the equipment.

[0030] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0032] Figure 1 The figure is a schematic diagram of a gearbox elastic support pin detection device according to an exemplary embodiment.

[0033] Figure 2 It is a schematic diagram of another gear box elastic support pin detection device according to an exemplary embodiment.

[0034] Figure 3 is a schematic diagram of a gearbox according to an exemplary embodiment.

[0035] Description of Reference Numerals

[0036] 110 - first detection board, 120 - second detection board, 130 - third detection board, 140 - fourth detection board, 150 - signal detector, 160 - alarm, K1 - first relay, K2 - second relay. DETAILED DESCRIPTION

[0037] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0038] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0039] As the core component of a doubly-fed asynchronous gearbox, the gearbox's stability and reliability are directly related to the operating efficiency of the wind turbine. As a key supporting structure for the gearbox, the elastic support buffers the power transmitted from the rotor side, ensuring the gearbox's stability and reliability under complex operating conditions.

[0040] In practical applications, how to effectively check the integrity of the elastic support pin and detect abnormal conditions of the gearbox elastic support pin, such as pin breakage or cracks, has become an important issue that needs to be faced in planned maintenance of the unit.

[0041] In order to solve the above problems, a first detection plate is provided at the first end of the elastic support pin of the gearbox; a second detection plate is provided at the second end of the elastic support pin of the gearbox; a first relay having an input pin, a ground pin, a common pin, a normally open pin and a normally closed pin, the input pin and the common pin of the first relay being used to connect to the power supply, and the ground pin of the first relay being used to connect to the first detection plate; a signal detector, the signal detector being connected to the normally open pin of the first relay, the signal detector being used to generate a first alarm signal when the signal of the normally open pin of the first relay is not detected; an alarm, the alarm being connected to the signal detector, the alarm being used to alarm according to the first alarm signal. The abnormal condition of the elastic support pin of the gearbox is fed back through the resistance value of the elastic support pin of the gearbox, such as the pin being broken or cracked, and an alarm is issued in the event of an abnormal condition of the elastic support pin of the gearbox, so that maintenance personnel can carry out planned maintenance in a timely manner, greatly improving the operating safety factor of the gearbox and preventing safety accidents of the equipment.

[0042] Figure 1 is a schematic diagram of a gearbox elastic support pin detection device according to an exemplary embodiment. Figure 3 is a schematic diagram of a gearbox according to an exemplary embodiment. Figure 1 and Figure 3 The gear box elastic support pin shaft detection device may include a first detection plate 110 , a second detection plate 120 , a first relay K1 , a signal detector 150 and an alarm 160 .

[0043] The first detection plate 110 is provided at the first end of the elastic support pin of the gear box;

[0044] The second detection plate 120 is provided at the second end of the elastic support pin of the gear box, and the second detection plate 120 is connected to the reference ground;

[0045] A first relay K1 has an input pin, a ground pin, a common pin, a normally open pin, and a normally closed pin. The input pin and the common pin of the first relay K1 are used to connect to a power supply (e.g., 24V), and the ground pin of the first relay K1 is used to connect to the first detection board 110;

[0046] A signal detector 150 , connected to the normally open pin of the first relay K1 , and configured to generate a first alarm signal when no signal from the normally open pin of the first relay K1 is detected;

[0047] The alarm 160 is connected to the signal detector 150 and is used to generate an alarm according to the first alarm signal.

[0048] The gearbox's elastic support pin is a key component that connects and supports the gearbox's internal components, subject to high loads and vibration. Gearbox elastic support pins are typically made of carbon steel, alloy steel (such as chrome steel or manganese steel), stainless steel, bearing steel, aluminum alloy, and other materials. As metal structures, these pins have a relatively fixed resistance value. If the pin experiences an abnormality such as a break or crack, its resistance value will be affected accordingly. Therefore, monitoring the resistance of the pin can provide feedback on any abnormalities in the gearbox's elastic support pin.

[0049] The first end of the gearbox elastic support pin and the second end of the gearbox elastic support pin may refer to the two ends of the gearbox elastic support pin. The first detection plate 110 and the second detection plate 120 may be respectively mounted on the two ends of the gearbox elastic support pin. The first detection plate 110 and the second detection plate 120 generally contain a resistive material. The first detection plate 110 and the second detection plate 120 may be a strain gauge sensitive to mechanical stress or other forms of resistive sensors.

[0050] In other embodiments, the first end of the gearbox elastic support pin and the second end of the gearbox elastic support pin can also refer to any two different positions of the gearbox elastic support pin, and the abnormal situation between the first end and the second end can be detected by the first detection plate 110 and the second detection plate 120.

[0051] The first relay K1 may be an electromagnetic relay, and the model of the electromagnetic relay may be LGPLCK200.

[0052] The input pin of the first relay K1 is connected to the power supply 24V, the ground pin of the first relay K1 is connected to the first detection board 110, the first detection board 110 is arranged at the first end of the elastic support pin shaft of the gear box, and the second detection board 120 is arranged at the second end of the elastic support pin shaft of the gear box, the second detection board 120 is connected to the reference ground, the common pin of the first relay K1 is connected to the power supply 24V, the normally open pin of the first relay K1 is connected to the signal detector 150, and the normally closed pin of the first relay K1 is suspended.

[0053] The working principle of the first relay K1 is as follows:

[0054] When the input pin of the first relay K1 receives a high-level signal, current flows through the coil between the input pin and the ground pin of the first relay K1, generating a magnetic field. This magnetic field attracts the armature inside the first relay K1, switching it from connecting the normally closed pin and the common pin to connecting the normally open pin and the common pin. This allows the power supply (24V) of the common pin of the first relay K1 to be transmitted to the signal detector 150, and the signal detector 150 can detect the signal of the normally open pin of the first relay K1.

[0055] It should be understood that the current flowing through the coil between the input pin and the ground pin of the first relay K1 will be affected by the resistance between the first end and the second end of the gear box elastic support pin connected in series therewith. If an abnormal situation such as the pin breaking or cracking occurs between the first end and the second end of the gear box elastic support pin, the resistance between the first end and the second end of the gear box elastic support pin will increase, so that the current of the coil between the input pin and the ground pin of the first relay K1 will decrease, making it impossible to switch from the normally closed pin to the normally open pin, and the signal detector 150 will not detect the signal of the normally open pin of the first relay K1.

[0056] The signal detector 150 is configured to generate a first alarm signal when no signal from the normally open pin of the first relay K1 is detected.

[0057] The alarm 160 is configured to generate an alarm upon receiving the first alarm signal transmitted by the signal detector 150 .

[0058] The resistance value of the gearbox elastic support pin is used to feedback abnormal conditions between the first end and the second end of the gearbox elastic support pin, such as pin breakage or cracks, and an alarm is issued when the gearbox elastic support pin is abnormal, so that maintenance personnel can carry out planned maintenance in a timely manner, greatly improving the operating safety factor of the gearbox and preventing safety accidents of the equipment.

[0059] It should be understood that when the gearbox includes multiple gearbox elastic support pins, a corresponding gearbox elastic support pin detection device is provided for each gearbox elastic support pin for detection. The signal detector 150 and the alarm 160 can be shared among the multiple gearbox elastic support pin detection devices.

[0060] Figure 2 Schematic diagram of another gearbox elastic support pin detection device according to an exemplary embodiment. Figure 2 For a gearbox elastic support pin shaft composed of two parts, the gearbox elastic support pin shaft detection device may further include:

[0061] A third detection plate 130 provided at the third end of the elastic support pin of the gear box;

[0062] a fourth detection plate 140 provided at a fourth end of the elastic support pin of the gear box, the fourth detection plate 140 being connected to a reference ground;

[0063] The second relay K2 has an input pin, a ground pin, a common pin, a normally open pin, and a normally closed pin. The input pin and the common pin of the second relay K2 are used to connect to the power supply, and the ground pin of the second relay K2 is used to connect to the third detection board;

[0064] A signal detector 150 , connected to the normally open pin of the second relay K2 , and configured to generate a second alarm signal when no signal from the normally open pin of the second relay K2 is detected;

[0065] The alarm 160 is connected to the signal detector 150 and is used to generate an alarm according to the second alarm signal.

[0066] The first detection plate 110 and the third detection plate 130 can be installed at both ends of the gear box elastic support pin respectively, and the second detection plate 120 and the fourth detection plate 140 can be installed in the middle position to respectively detect the two parts that constitute the gear box elastic support pin. The first detection plate 110 and the second detection plate 120 detect the left part of the gear box elastic support pin, and the third detection plate 130 and the fourth detection plate 140 detect the right part of the gear box elastic support pin.

[0067] The first, second, third, and fourth detection plates 110, 120, 130, and 140 typically contain resistive materials and may employ strain gauges or other resistance sensors sensitive to mechanical stress.

[0068] The second relay K2 may be an electromagnetic relay, and the model of the electromagnetic relay may be LGPLCK200.

[0069] The input pin of the second relay K2 is connected to the power supply 24V, the ground pin of the first relay K1 is connected to the third detection board 130, the third detection board 130 is arranged at the third end of the elastic support pin shaft of the gear box, and the fourth detection board 140 is arranged at the fourth end of the elastic support pin shaft of the gear box. The fourth detection board 140 is connected to the reference ground, the common pin of the second relay K1 is connected to the power supply 24V, the normally open pin of the second relay K2 is connected to the signal detector 150, and the normally closed pin of the second relay K2 is left floating.

[0070] The working principle of the second relay K1 is as follows:

[0071] When the input pin of the second relay K2 receives a high-level signal, current flows through the coil between the input pin and the ground pin of the second relay K2, generating a magnetic field. This magnetic field attracts the armature inside the second relay K2, switching it from connecting the normally closed pin and the common pin to connecting the normally open pin and the common pin, thereby transmitting the power supply (24V) of the common pin of the second relay K2 to the signal detector 150, and the signal detector 150 can detect the signal of the normally open pin of the second relay K2.

[0072] It should be understood that the current flowing through the coil between the input pin and the ground pin of the second relay K2 will be affected by the resistance between the third end and the fourth end of the gear box elastic support pin connected in series therewith. If an abnormal situation such as a pin breakage or crack occurs between the third end and the fourth end of the gear box elastic support pin, the resistance between the third end and the fourth end of the gear box elastic support pin will increase, so that the current of the coil between the input pin and the ground pin of the second relay K2 will decrease, making it impossible to switch from the normally closed pin to the normally open pin, and the signal detector 150 will not detect the signal of the normally open pin of the second relay K2.

[0073] The signal detector 150 is configured to generate a second alarm signal when no signal from the normally open pin of the second relay K2 is detected.

[0074] The alarm 160 is configured to generate an alarm upon receiving the second alarm signal transmitted by the signal detector 150 .

[0075] The resistance value of the gearbox elastic support pin is used to feedback abnormal conditions between the third and fourth ends of the gearbox elastic support pin, such as pin breakage or cracks, and an alarm is issued in the event of abnormal conditions between the third and fourth ends of the gearbox elastic support pin, so that maintenance personnel can carry out planned maintenance in a timely manner, greatly improving the operating safety factor of the gearbox and preventing safety accidents of the equipment.

[0076] In a possible implementation, the gear box elastic support pin detection device may further include:

[0077] The display is connected to the signal detector 150 and is used to display the detection result of the signal detector 150. For example, if a signal is detected, the signal can be displayed; if no signal is detected, the words "no signal detected" can be displayed.

[0078] The display may include at least one of a liquid crystal screen and a digital tube.

[0079] By displaying the detection results of the signal detector 150 on the display, maintenance personnel can be informed of abnormal conditions of the elastic support pin shaft of the gear box in real time, and can make timely adjustments to ensure the safe operation of the gear box.

[0080] In one possible implementation, the alarm 160 includes at least one of a buzzer and an alarm light. The alarm 160 can be an alarm light, a buzzer, or an acousto-optic alarm 160 that integrates the alarm light and the buzzer.

[0081] In one embodiment, the alarm 160 can be an audible and visual alarm 160 that integrates an alarm light and a buzzer. When the alarm 160 receives the first alarm signal or the second alarm signal, the audible and visual alarm 160 is turned on, the light of the audible and visual alarm 160 lights up, and a prompt sound is emitted to remind maintenance personnel that there is an abnormality in the elastic support pin shaft of the gear box.

[0082] In one possible embodiment, the gear box elastic support pin detection device may further include:

[0083] The power module is connected to the first relay K1 , the signal detector 150 , and the alarm 160 .

[0084] The power supply module is used to provide power to the first relay K1 , the signal detector 150 , and the alarm 160 .

[0085] In other embodiments, the power module may also be connected to the second relay K2 and the display to provide power to the second relay K2 and the display.

[0086] The power module may be at least one of a farad capacitor, a rechargeable battery, and a power adapter.

[0087] This embodiment further provides a gearbox, including a gearbox elastic support pin and the above-mentioned gearbox elastic support pin detection device.

[0088] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0089] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0090] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A gearbox elastic support pin detection device, characterized in that: The gear box elastic support pin shaft detection device includes: A first detection plate provided at a first end of the elastic support pin of the gear box; a second detection plate provided at the second end of the elastic support pin of the gear box, the second detection plate being connected to a reference ground; a first relay having an input pin, a ground pin, a common pin, a normally open pin, and a normally closed pin, wherein the input pin and the common pin of the first relay are used to connect to a power supply, and the ground pin of the first relay is used to connect to the first detection board; a signal detector connected to the normally open pin of the first relay, and configured to generate a first alarm signal when no signal from the normally open pin of the first relay is detected; An alarm is connected to the signal detector, and is used to sound an alarm according to the first alarm signal.

2. The gear box elastic support pin detection device according to claim 1, characterized in that: The gear box elastic support pin detection device also includes: a third detection plate provided at a third end of the elastic support pin of the gear box; a fourth detection plate provided at a fourth end of the elastic support pin of the gear box, the fourth detection plate being connected to a reference ground; A second relay has an input pin, a ground pin, a common pin, a normally open pin, and a normally closed pin, wherein the input pin and the common pin of the second relay are used to connect to a power supply, and the ground pin of the second relay is used to connect to the third detection board; a signal detector connected to the normally open pin of the second relay, and configured to generate a second alarm signal when no signal from the normally open pin of the second relay is detected; An alarm is connected to the signal detector, and is used to sound an alarm according to the second alarm signal.

3. The gearbox elastic support pin detection device according to claim 1, characterized in that: The first relay is an electromagnetic relay.

4. The gearbox elastic support pin detection device according to claim 3, characterized in that: The model of the electromagnetic relay is LGPLCK200.

5. The gear box elastic support pin detection device according to claim 1, characterized in that: The gear box elastic support pin detection device also includes: A display is connected to the signal detector and is used to display the detection result of the signal detector.

6. The gear box elastic support pin detection device according to claim 5, characterized in that: The display includes at least one of a liquid crystal screen and a digital tube.

7. The gear box elastic support pin detection device according to claim 1, characterized in that: The alarm includes at least one of a buzzer and an alarm light.

8. The gear box elastic support pin detection device according to claim 1, characterized in that: The gear box elastic support pin detection device also includes: A power supply module is connected to the first relay, the signal detector, and the alarm.

9. The gear box elastic support pin detection device according to claim 8, characterized in that: The power module includes at least one of a farad capacitor, a rechargeable battery and a power adapter.

10. A gear box, characterized in that: include: Gearbox elastic support pin; And the gear box elastic support pin shaft detection device according to any one of claims 1 to 9.

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