Fan reduction gearbox detection device

Abstract

The utility model discloses a draught fan reduction gearbox detection device which comprises a reduction gearbox body, a threaded installation hole formed in the reduction gearbox body and an oil level low point discharge outlet formed in the bottom of the reduction gearbox body, a temperature detection mechanism is arranged on the threaded installation hole, and a liquid level detection mechanism is arranged on the oil level low point discharge outlet. A vibration detection mounting hole is further formed in the reduction gearbox body, a vibration detection mechanism is arranged on the vibration detection mounting hole, and the vibration detection mounting hole is formed in one side of the threaded mounting hole. Related measurement parameters can be accurately displayed, maintenance can be carried out by respectively replacing the detection probes after damage, the replacement cost is low, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fan, concretely relates to a fan reduction gearbox detection device. BACKGROUND

[0002] Three parameter probes are usually installed in fan reduction gearbox, are inserted into the reduction gearbox through threaded mounting holes, and obtain lubricating oil temperature, oil level and box vibration signals. But after a period of use, one of the parameters of the three parameter probe is easy to be damaged, most of which are vibration and liquid level display failures, and temperature accounts for a small part of the failures. Once the vibration of the three parameters fails, the whole probe can only be replaced, or the probe is sent to the manufacturer for maintenance, which is high in cost. Therefore, the site needs to be transformed to achieve the purpose of low replacement cost and wide application range. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the purpose of the present application is to provide a fan reduction gearbox detection device, which can accurately display related measurement parameters, and can be repaired by replacing the detection probe after damage, which is low in replacement cost and wide in application range.

[0004] To solve the above technical problems, the present application adopts the following technical scheme:

[0005] A fan reduction gearbox detection device, comprising a reduction gearbox body, a threaded mounting hole provided on the reduction gearbox body, an oil level low point discharge port provided at the bottom of the reduction gearbox body, a temperature detection mechanism provided on the threaded mounting hole, a liquid level detection mechanism provided on the oil level low point discharge port, a vibration detection mounting hole provided on the reduction gearbox body, a vibration detection mechanism provided on the vibration detection mounting hole, and the vibration detection mounting hole being provided on one side of the threaded mounting hole.

[0006] Preferably, the vibration detection mechanism comprises a vibration sensor and a connecting seat provided at the bottom of the vibration sensor.

[0007] Preferably, the vibration detection mounting hole is provided with an outwardly protruding metal sleeve, one end of the metal sleeve is connected in the vibration detection mounting hole through threads, and the connecting seat is a magnetic base.

[0008] Preferably, the temperature detection mechanism adopts a three parameter probe or a temperature detection probe.

[0009] Preferably, the liquid level detection mechanism adopts a static pressure type liquid level meter.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] Different detection agencies are used to detect different parameters, and the original cable is used to send signals to the DCS display, so that when damage occurs, the replacement cost is lower, the replacement operation is more convenient, and the problems of high replacement cost and high maintenance difficulty when one parameter of the existing three-parameter probe is damaged are solved, and in the modification process, the oil level low point discharge port at the bottom of the reduction gearbox body is fully utilized, so that the liquid level detection mechanism installed on the oil level low point discharge port has better detection accuracy, and the vibration detection mounting hole is located on one side of the threaded mounting hole, so that the vibration data detection of the fan reduction gearbox is more accurate, and the system recognition error caused by the large difference in position is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of a vibration detection mechanism in a split state, and shows a structure schematic view of a vibration detection mechanism in a split state.

[0013] In the figure: 1, threaded mounting hole; 2, temperature detection mechanism; 3, reduction gearbox body; 4, vibration detection mechanism; 5, vibration sensor; 6, liquid level detection mechanism; 7, oil level low point discharge port; 8, connecting seat; 9, metal sleeve; 10, vibration detection mounting hole. DETAILED DESCRIPTION

[0014] In the following, the application will be further described in conjunction with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined arbitrarily to form new embodiments without conflict.

[0015] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0016] The terms "first", "second", etc. in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of one kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.

[0017] As Figure 1As shown, a fan reduction gearbox detection device, including a reduction gearbox body 3, a threaded mounting hole 1 provided on the reduction gearbox body 3, an oil level low point discharge port 7 provided on the bottom of the reduction gearbox body 3, the threaded mounting hole 1 is provided with a temperature detection mechanism 2, the oil level low point discharge port 7 is provided with a liquid level detection mechanism 6, the reduction gearbox body 3 is further provided with a vibration detection mounting hole 10, the vibration detection mounting hole 10 is provided with a vibration detection mechanism 4, the vibration detection mounting hole 10 is provided on one side of the threaded mounting hole 1.

[0018] In the actual modification process, the original three-parameter probe is removed, and a vibration detection mounting hole 10 is reprocessed on one side of the threaded mounting hole 1 on the reduction gearbox body 3, and at the same time, the threaded mounting hole 1, the oil level low point discharge port 7 and the vibration detection mounting hole 10 are respectively installed with the temperature detection mechanism 2, the liquid level detection mechanism 6 and the vibration detection mechanism 4 which are specially used for detecting temperature, liquid level and vibration signal. Through different detection mechanisms, different parameters are detected, and then the original cable is used to send the signal to the DCS display. When one of the detection mechanisms is damaged, only the damaged mechanism needs to be replaced to achieve maintenance. The replacement cost is lower and the replacement operation is more convenient. The problem of high replacement cost and high maintenance difficulty when one parameter of the existing three-parameter probe is damaged is solved. Moreover, in the modification process, the oil level low point discharge port 7 at the bottom of the reduction gearbox body 3 is fully utilized, which can make the liquid level detection mechanism 6 installed on the oil level low point discharge port 7 have better detection accuracy and be less affected by vibration and less likely to be damaged. The vibration detection mounting hole 10 is located on one side of the threaded mounting hole 1, which can more accurately detect the vibration data of the fan reduction gearbox and will not cause system recognition error due to large position difference.

[0019] Further improvement is that the vibration detection mechanism 4 includes a vibration sensor 5 and a connecting seat 8 provided at the bottom of the vibration sensor 5.

[0020] The vibration detection mechanism 4 is composed of a vibration sensor 5 and a connecting seat 8. The vibration sensor 5 is installed in the vibration detection mounting hole 10 through the connecting seat 8. The connecting seat 8 is generally an M5 or M8 screw rod. When installing the vibration sensor 5, only the connecting seat 8 needs to be screwed into the vibration detection mounting hole 10 to achieve fixation. The disassembly and assembly are more convenient, and the transmission is more direct.

[0021] Further improvement is that the vibration detection mounting hole 10 is provided with an outwardly protruding metal sleeve 9, one end of the metal sleeve 9 is connected in the vibration detection mounting hole 10 through threads, and the connecting seat 8 is a magnetic base.

[0022] Since the vibration sensor 5 is generally in a cylindrical structure, the length thereof is generally more than 10 cm, if the vibration sensor 5 is completely installed through the hole formed on the reducer body 3, the hole is easy to be too large or too deep, the reducer body 3 is damaged too much, the hole is difficult to form, and if the small threaded hole is used for connection, the stability is poor due to vibration. Therefore, in order to ensure that the vibration sensor 5 is stably connected and the damage to the reducer body 3 is avoided, the metal sleeve 9 is installed on the vibration detection mounting hole 10, the metal sleeve 9 is connected with the vibration detection mounting hole 10 through the threaded end at the bottom of the metal sleeve 9, the vibration detection mounting hole 10 is installed more stably in the case that the depth of the vibration detection mounting hole 10 is smaller, and after installation, the vibration sensor 5 is inserted into the vibration detection mounting hole 10 and is adsorbed through the magnetic adsorption base at the bottom, so that the wrapped connection is realized, the vibration detection is better, the vibration sensor 5 is more firmly installed, one end of the vibration sensor 5 protrudes outside the metal sleeve 9, when replacement is needed, the vibration sensor 5 is pulled out outward to realize disassembly, and disassembly and assembly are more convenient.

[0023] Further improvement is that the temperature detection mechanism 2 adopts a three-parameter probe or a temperature detection probe.

[0024] In the early stage, the temperature detection mechanism 2 can adopt a three-parameter probe, the cost is lower in the transformation, and the three-parameter probe can also realize double detection of the liquid level and vibration, when the vibration and liquid level display of the three-parameter probe are damaged, the three-parameter probe can still be used for temperature detection, when the three-parameter probe is completely damaged, the temperature detection probe is used for replacement, the cost is lower in the replacement process, the maintenance cost is lower and the maintenance difficulty is lower after the later damage.

[0025] Further improvement is that the liquid level detection mechanism 6 adopts a static pressure type liquid level meter.

[0026] The static pressure type liquid level meter adopts a static pressure liquid level transmitter which is proportional to the liquid height to measure the liquid level, has a dry ceramic capacitive transducer or a diaphragm type diffusion silicon pressure sensor with temperature compensation and isolation, and a high-precision intelligent micro-processing circuit, precise digital temperature compensation technology and nonlinear correction technology, and has strong anti-interference ability, high precision, high reliability, good stability and high sensitivity.

[0027] The above-mentioned embodiments are only preferred embodiments of the application, and cannot be used to limit the protection scope of the application, and any non-essential changes and replacements made by those skilled in the art on the basis of the application all belong to the protection scope of the application.

Claims

1. A wind turbine gearbox testing device, comprising a gearbox body (3), a threaded mounting hole (1) provided on the gearbox body (3), and an oil low point discharge port (7) provided at the bottom of the gearbox body (3), characterized in that: A temperature detection mechanism (2) is provided on the threaded mounting hole (1), a liquid level detection mechanism (6) is provided on the low oil level discharge port (7), a vibration detection mounting hole (10) is also provided on the gearbox body (3), a vibration detection mechanism (4) is provided on the vibration detection mounting hole (10), and the vibration detection mounting hole (10) is located on one side of the threaded mounting hole (1).

2. The fan gearbox testing device according to claim 1, characterized in that: The vibration detection mechanism (4) includes a vibration sensor (5) and a connecting seat (8) located at the bottom of the vibration sensor (5).

3. The fan gearbox testing device according to claim 2, characterized in that: The vibration detection mounting hole (10) is provided with an outwardly protruding metal sleeve (9), one end of which is threaded into the vibration detection mounting hole (10), and the connecting seat (8) is a magnetic base.

4. The fan gearbox testing device according to claim 1, characterized in that: The temperature detection mechanism (2) uses a three-parameter probe or a temperature detection probe.

5. The fan gearbox testing device according to claim 1, characterized in that: The liquid level detection mechanism (6) adopts a hydrostatic liquid level gauge.

Images