Tooth breakage prevention detection device for gear box of wind turbine generator

Abstract

A detection device for preventing tooth breakage of a wind turbine generator gearbox belongs to the field of gearbox gear detection and comprises a detection box, a box door is arranged on the front side of the detection box, a handle is arranged on the box door, a gear placement groove is formed in the center of the bottom in the detection box, gear fixing mechanisms are arranged on the two sides of the gear placement groove, and the gear fixing mechanisms are arranged on the gear placement groove. An electric heating plate is arranged at the bottom in the detection box and located below the gear containing groove, a hydraulic cylinder capable of displaying pressure is vertically arranged in the gear containing groove, the top end of the hydraulic cylinder is fixedly connected with the center of the top in the detection box, and a pressing block is arranged at the bottom end of the hydraulic cylinder. And a temperature sensor is arranged at the inner side part of the detection box. According to the utility model, the compression resistance of the gear teeth of the gear of the wind turbine generator gearbox can be effectively detected, and meanwhile, a high-temperature environment can be created, so that the temperature during use is simulated, and the accuracy of the compression resistance obtained through detection is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear box gear detection field, concretely is a kind of wind turbine gear box prevents gear breakage detection device. BACKGROUND

[0002] With the continuous development of society, environmental protection consciousness is also increasing, at present, the use of clean energy is gradually developed and researched, such as the water power generation, wind power generation, tidal power generation etc., are using natural resources in nature to generate electricity, among which wind power generation is currently used more, since wind turbine generator is generally set in sparsely populated area, and its main components are set on high stand, so its maintenance is more difficult, so all components of wind turbine generator have high performance requirements, so the gear box of wind turbine has high requirements, the gear in the gear box of wind turbine needs to pass through strict performance detection to be assembled and used, and the hardness of gear, that is, the compression resistance detection is important performance data for judging whether it can be used stably for a long time without gear breakage, but the compression detection device of gear currently generally places gear horizontally to detect compression resistance, but the best part of gear performance requirement is gear tooth part, and the gear horizontal placement for compression detection cannot effectively detect the compression resistance performance of gear tooth, and if the compression resistance performance of gear tooth is insufficient, gear breakage is prone to occur during long-term use, and the gear box of wind turbine is operated for a long time under high load, and its use environment temperature is very high, so there is certain difference between the compression resistance performance detected at room temperature and actual use. UTILITARIAN CONTENT

[0003] The utility model provides a kind of wind turbine gear box prevents gear breakage detection device to solve the defects in prior art.

[0004] The utility model is implemented by the following technical solutions:

[0005] A kind of wind turbine gear box prevents gear breakage detection device, including detection box, the box door is arranged in the front side of the detection box, handle is arranged on the box door, gear placement groove is opened in the central position of the bottom of the detection box, gear fixing mechanism is arranged in the two sides of the gear placement groove, electric heating plate is arranged in the bottom of the detection box, the electric heating plate is located below gear placement groove, the vertical gear placement groove is arranged with the hydraulic cylinder capable of showing pressure, the hydraulic cylinder top end is fixedly connected with the central position of the top of the detection box, the hydraulic cylinder bottom end is arranged with pressure block, temperature sensor is arranged in the inner side of the detection box.

[0006] The gear fixing mechanism comprises electric push rods made of high-temperature resistant material and symmetrically arranged around the gear placing groove, the electric push rods are fixedly connected with the bottom of the detection box, and the end of the electric push rods close to the gear placing groove is provided with a high-temperature resistant clamping block.

[0007] The bottom of the pressing block is provided with a groove at a position corresponding to the gear placing groove.

[0008] The detection box is provided with an infrared flaw detector on each of the inner walls on the two sides of the lower part of the detection box.

[0009] The outer periphery of the infrared flaw detector is provided with a protective cover capable of being penetrated by infrared light, and the protective cover is fixedly connected with the side wall of the detection box.

[0010] The advantage of the utility model is: the utility model can effectively detect the gear tooth compression resistance of the gear of the wind turbine gear box, can also create a high temperature environment, thereby simulating the temperature during use, and ensure the accuracy of the compression resistance detected. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0012] Figure 1 It is the structure schematic diagram of the utility model.

[0013] Mark: 1, detection box;2, box door;3, handle;4, gear placing groove;5, electric heating plate;6, hydraulic cylinder;7, pressing block;8, temperature sensor;9, electric push rod;10, clamping block;11, groove;12, infrared flaw detector;13, protective cover. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0015] The utility model provides a wind turbine gear box prevents gear tooth breakage detection device, including detection box 1, the detection box 1 front side is provided with box door 2, the box door 2 is provided with handle 3, the inside bottom central position of detection box 1 is set up gear placing groove 4, the gear placing groove 4 both sides are provided with gear fixing mechanism, the inside bottom of detection box 1 is provided with electric heating plate 5, the electric heating plate 5 is located gear placing groove 4 below, the gear placing groove 4 vertical setting can show pressure hydraulic cylinder 6, the top of hydraulic cylinder 6 is fixedly connected with the inside top central position of detection box 1, the bottom of hydraulic cylinder 6 is provided with pressure block 7, the inside side portion of detection box 1 is provided with temperature sensor 8, the utility model discloses when using the gear to be detected is placed vertically in gear placing groove 4 then through gear fixing mechanism the gear to be detected is fixed vertically, simultaneously hydraulic cylinder 6 drives pressure block 7 to move down and contacts with the top gear tooth of the gear to be detected, then electric heating plate 5 opens, and the temperature in the detection box 1 is monitored in real time through temperature sensor 8, when the temperature rises to specified temperature and maintains for a period of time, the pressure of hydraulic cylinder 6 continuously pressurizes to specified pressure after, and the gear to be detected is completed in specified high temperature under the compression resistance capability test, and electric heating plate 5 is closed and is cooled to room temperature and opens box door 2, and the gear to be detected is taken out and is observed if there is no deformation, and it proves that the compression resistance is good.

[0016] Specifically, the gear fixing mechanism includes electric push rods 9 of high-temperature-resistant material symmetrically arranged around the gear placing groove 4, the electric push rods 9 are fixedly connected with the inside bottom of the detection box 1, and the electric push rods 9 are provided with high-temperature-resistant clamping blocks 10 near the ends close to the gear placing groove. After the gear to be detected is placed vertically in the gear placing groove 4, the two electric push rods 9 are simultaneously started to drive the two clamping blocks 10 to fix the gear to be detected, so that the operation is simple and the use is convenient.

[0017] Specifically, the bottom of the pressure block 7 is provided with a groove 11 corresponding to the gear placing groove 4. The groove 11 can be inserted into the top of the gear to be detected, so that the pressure can be accurately transmitted to the gear to be detected during the pressurization.

[0018] Further, the detection box 1 is provided with an infrared flaw detector 12 on each of the two inner walls of the lower part. The infrared flaw detector 12 can detect the structural changes in the gear to be detected during the pressurization in the high-temperature environment. When the surface of the gear to be detected does not change, but the actual internal metal structure changes, the changes can also be detected by the infrared flaw detector 12, so that whether the gear to be detected changes internally under the high temperature can be clearly known, and the accuracy of the detection of the compression resistance of the gear to be detected is ensured.

[0019] Further, the infrared flaw detector 12 is provided with a protective cover 13 which can be penetrated by infrared light, and the protective cover 13 is fixedly connected with the side wall of the detection box 1.

[0020] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A wind turbine generator set gear box tooth breakage prevention detection device, characterized by: Including the detection box (1), the box door (2) is arranged on the front side of the detection box (1), the handle (3) is arranged on the box door (2), the gear placing groove (4) is opened in the central position of the inner bottom of the detection box (1), the gear fixing mechanism is arranged on both sides of the gear placing groove (4), the electric heating plate (5) is arranged on the inner bottom of the detection box (1), the electric heating plate (5) is located below the gear placing groove (4), the hydraulic cylinder (6) is vertically arranged on the gear placing groove (4), the top end of the hydraulic cylinder (6) is fixedly connected with the central position of the inner top of the detection box (1), the pressure block (7) is arranged on the bottom end of the hydraulic cylinder (6), and the temperature sensor (8) is arranged on the inner side of the detection box (1).

2. A wind turbine gear box tooth breakage prevention detection device as claimed in claim 1, wherein: The gear fixing mechanism includes electric push rods (9) made of high-temperature-resistant material and symmetrically arranged around the gear placing groove (4), the electric push rods (9) are fixedly connected with the inner bottom of the detection box (1), and the end of the electric push rod (9) close to the gear placing groove is provided with a high-temperature-resistant clamping block (10).

3. A wind turbine gear box tooth breakage prevention detection device as claimed in claim 1, wherein: The recess (11) is opened in the corresponding position of the gear placing groove (4) on the bottom of the pressure block (7).

4. A wind turbine gear box tooth breakage prevention detection device as claimed in claim 1, wherein: An infrared flaw detector (12) is arranged on each of the inner walls on both sides of the lower part of the detection box (1).

5. A wind turbine gear box tooth breakage prevention detection device as claimed in claim 4, wherein: The infrared flaw detector (12) is provided with a protective cover (13) that can be penetrated by infrared light, and the protective cover (13) is fixedly connected with the side wall of the detection box (1).

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