Wind power gear box flow testing device and testing method

Abstract

The invention discloses a wind power gear box flow testing device and method, and the device comprises a lubricating oil control station which is used for controlling the output flow and oil temperature of lubricating oil; the second-stage planet packet flow testing device is connected with the output end of the lubricating oil control station and is used for metering the lubricating oil flow of each lubricating point of the second planet packet; the first-stage planet packet flow testing device is connected with the second-stage planet packet flow testing device and is used for metering the lubricating oil flow of each lubricating point of the first planet packet; and the third-stage planet packet flow testing device is connected with the output end of the lubricating oil control station and is used for metering the lubricating oil flow of each lubricating point of the third planet packet. According to the invention, the real-time flow of each lubricating point of the gear box under the conditions of different flows and different oil temperatures can be accurately detected, the operation reliability of the gear box is effectively improved, and the service life of the wind power gear box is prolonged at the same time.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power gearboxes, and in particular relates to a flow testing device and a testing method for a wind power gearbox. Background Art

[0002] At present, the flow design of wind turbine gearboxes mostly theoretically calculates the lubrication flow of each lubrication point by calculating the theoretical power loss of each lubrication point. There is a lack of performance parameters obtained by testing the actual cooling flow of each lubrication point under different working conditions of the gearbox. That is, the real-time lubrication flow of each lubrication point of the gearbox under different working conditions cannot be accurately tested without destroying the gearbox body. The single theoretical calculation cannot take into account the influence of oil path, oil hole specifications, parts matching, oil temperature, etc. on the actual flow, which seriously affects the service life of the wind turbine gearbox. Summary of the invention

[0003] In order to at least partially solve the technical problems existing in the above-mentioned prior art, the present invention provides a wind turbine gearbox flow rate testing device and a testing method.

[0004] The wind power gearbox flow testing device of the present invention comprises:

[0005] A lubricating oil control station, wherein the lubricating oil control station is used to control the lubricating oil output flow and oil temperature;

[0006] A secondary planetary package flow test device, which is connected to the output end of the lubricating oil control station and is used to measure the lubricating oil flow of each lubricating point of the second planetary package;

[0007] A first-level planetary package flow test device, the first-level planetary package flow test device is connected to the second-level planetary package flow test device, and is used to measure the lubricating oil flow of each lubrication point of the first planetary package;

[0008] A three-stage planetary package flow test device is connected to the output end of the lubricating oil control station and is used to measure the lubricating oil flow of each lubricating point of the third planetary package.

[0009] Furthermore, in the above-mentioned wind turbine gearbox flow test device, the first-level planetary package flow test device comprises:

[0010] A first-level planetary package flow test stand, which is used to replace the actual lubrication point oil path and oil hole specifications of the first-level planetary package;

[0011] A first drainage hose, one end of which is connected to a lubrication point on the first-level planetary package flow test stand and is used to respectively drain the lubricating oil from each lubrication point;

[0012] A first flow meter is connected to the other end of the first drainage hose and is used to measure the flow of lubricating oil at each lubrication point.

[0013] Furthermore, in the above-mentioned wind turbine gearbox flow test device, the two-stage planetary package flow test device comprises:

[0014] A secondary planetary package flow test stand, which is used to replace the actual lubrication point oil path and oil hole specifications of the secondary planetary package;

[0015] A second drainage hose, one end of which is connected to a lubrication point on the secondary planetary bag flow test stand, and is used to respectively drain the lubricating oil from each lubrication point;

[0016] The second flow meter is connected to the other end of the second drainage hose and is used to measure the flow of lubricating oil at each lubrication point.

[0017] Further, in the above-mentioned wind turbine gearbox flow test device, the three-stage planetary package flow test device comprises:

[0018] A three-stage planetary package flow test stand, which is used to replace the actual lubrication point oil path and oil hole specifications of the three-stage planetary package;

[0019] A third drainage hose, one end of which is connected to a lubrication point on the three-stage planetary bag flow test stand, and is used to respectively drain the lubricating oil from each lubrication point;

[0020] The third flow meter is connected to the other end of the third drainage hose and is used to measure the flow of lubricating oil at each lubrication point.

[0021] Furthermore, in the above-mentioned wind turbine gearbox flow testing device, the lubricating oil control station includes a thin oil lubrication station, an oil inlet pipe and a gearbox oil return pipe. The output end of the thin oil lubrication station supplies oil to the first-stage planetary package flow test stand, the second-stage planetary package flow test stand and the third-stage planetary package flow test stand through the oil inlet pipe, and the input end of the thin oil lubrication station recovers lubricating oil from the first flowmeter, the second flowmeter and the third flowmeter through the gearbox oil return pipe.

[0022] The wind power gearbox flow testing method of the present invention comprises:

[0023] First, connect the first-stage planetary package flow test device to the second-stage planetary package flow test device through bolts, then connect the second-stage planetary package flow test device to the gear box body through bolts, and connect the third-stage planetary package flow test device to the gear box body through bolts, the thin oil lubrication station is connected to the gear box main oil inlet through the oil inlet pipe, and the gear box body is connected to the thin oil lubrication station through the gear box oil return pipe;

[0024] During the test, after the lubricating oil parameters are set through the thin oil lubrication station, the lubricating oil enters the main oil inlet of the gearbox through the oil inlet pipe, and the lubricating oil is diverted through the main oil inlet to enter the secondary planetary package oil inlet and the tertiary planetary package oil inlet. The lubricating oil in the secondary planetary package oil inlet passes through the secondary copper ring and then enters the secondary planetary package flow test device to measure the lubricating oil flow of each lubrication point of the second planetary package. Part of the lubricating oil in the secondary planetary package flow test device passes through the primary copper ring and enters the first planetary package flow test device to measure the lubricating oil flow of each lubrication point of the first planetary package; the lubricating oil in the tertiary planetary package oil inlet passes through the tertiary copper ring and enters the tertiary planetary package flow test device to measure the lubricating oil flow of each lubrication point of the third planetary package.

[0025] The wind turbine gearbox flow rate testing device and testing method of the present invention have the following advantages and beneficial effects:

[0026] The overall structure of the present invention is simple. The flow testing device is used to replace the planetary packs at each level. Each lubrication point is connected to the flow meter through a drainage hose, so the real-time flow of each lubrication point can be effectively and accurately measured. The lubricating oil control station can be set to accurately detect the flow of each lubrication point of the gear box under different flow rates and different oil temperatures, and the actual lubrication flow of each lubrication point under different working conditions of the gear box can be obtained. The performance parameters obtained by the test are conducive to the control of the overall effective lubrication flow of the gear box, which effectively improves the reliability of the operation of the gear box and at the same time increases the service life of the wind power gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the wind turbine gearbox flow testing device after installation of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a lubricating oil control station of a wind power gearbox flow testing device of the present invention;

[0030] Figure 3 It is a structural schematic diagram of a first-level planetary package flow test device of a wind power gearbox flow test device of the present invention;

[0031] Figure 4 It is a structural schematic diagram of a two-stage planetary package flow test device of a wind power gearbox flow test device of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a three-stage planetary package flow test device of a wind power gearbox flow test device of the present invention.

[0033] Description of reference numerals:

[0034] 100: gear box body;

[0035] 1: Lubricating oil control station, 11: Thin oil lubrication station, 12: Oil inlet pipe, 13: Gear box oil return pipe;

[0036] 2: first-level planetary package flow test device, 21: first-level planetary package flow test stand, 22: first drainage hose 23: first flow meter;

[0037] 3: Secondary planetary package flow test device, 31: Secondary planetary package flow test stand, 32: Second drainage hose, 33: Second flow meter;

[0038] 4: three-stage planetary package flow test device, 41: three-stage planetary package flow test frame, 42: third drainage hose, 43: third flow meter. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. 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 making creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 5 As shown, the wind turbine gearbox flow testing device of the present invention comprises:

[0041] Lubricating oil control station 1, which is used to control the lubricating oil output flow rate and oil temperature, so as to simulate different working conditions of the gearbox under different flow rates and different oil temperatures;

[0042] A secondary planetary package flow test device 3, which is connected to the output end of the lubricating oil control station 1 and is used to measure the lubricating oil flow of each lubricating point of the second planetary package;

[0043] The first-level planetary package flow test device 2 is connected to the second-level planetary package flow test device 3 and is used to measure the lubricating oil flow of each lubrication point of the first planetary package;

[0044] The three-stage planetary package flow test device 4 is connected to the output end of the lubricating oil control station 1 and is used to measure the lubricating oil flow of each lubricating point of the third planetary package.

[0045] Furthermore, in the above-mentioned wind turbine gearbox flow test device, the first-level planetary package flow test device 2 comprises:

[0046] The first-level planetary package flow test frame 21 is used to replace the oil path and oil hole specifications of the actual lubrication points of the first-level planetary package, so as to accurately detect the actual lubrication flow of the first-level planetary package by detecting the lubrication flow of each lubrication point of the first-level planetary package flow test frame 21;

[0047] A first drainage hose 22, one end of which is connected to a lubrication point on the first-level planetary package flow test frame 21, and is used to respectively drain the lubricating oil from each lubrication point;

[0048] The first flow meter 23 is connected to the other end of the first drainage hose 22 and is used to measure the flow rate of lubricating oil at each lubrication point.

[0049] Furthermore, in the above-mentioned wind turbine gearbox flow test device, the two-stage planetary package flow test device 3 comprises:

[0050] The secondary planetary package flow test frame 31 is used to replace the oil path and oil hole specifications of the actual lubrication points of the secondary planetary package, so as to accurately detect the actual lubrication flow of the secondary planetary package by detecting the lubrication flow of each lubrication point of the secondary planetary package flow test frame 31;

[0051] A second drainage hose 32, one end of which is connected to a lubrication point on the secondary planetary package flow test frame 31, and is used to respectively drain the lubricating oil from each lubrication point;

[0052] The second flow meter 33 is connected to the other end of the second drainage hose 32 and is used to measure the flow rate of lubricating oil at each lubrication point.

[0053] Furthermore, in the above-mentioned wind turbine gearbox flow test device, the three-stage planetary package flow test device 4 comprises:

[0054] The three-stage planetary package flow test frame 41 is used to replace the oil path and oil hole specifications of the actual lubrication points of the three-stage planetary package, so as to accurately detect the actual lubrication flow of the three-stage planetary package by detecting the lubrication flow of each lubrication point of the three-stage planetary package flow test frame 41;

[0055] A third drainage hose 42, one end of which is connected to a lubrication point on the three-stage planetary package flow test frame 41, and is used to respectively drain the lubricating oil from each lubrication point;

[0056] The third flow meter 43 is connected to the other end of the third drainage hose 42 and is used to measure the flow rate of lubricating oil at each lubrication point.

[0057] Furthermore, in the above-mentioned wind turbine gearbox flow test device, the lubricating oil control station 1 includes a thin oil lubrication station 11, an oil inlet pipe 12 and a gearbox oil return pipe 13. The output end of the thin oil lubrication station 11 supplies oil to the first-stage planetary package flow test frame 21, the second-stage planetary package flow test frame 31 and the third-stage planetary package flow test frame 41 through the oil inlet pipe 12, and the input end of the thin oil lubrication station 11 recovers lubricating oil from the first flowmeter 23, the second flowmeter 33 and the third flowmeter 43 through the gearbox oil return pipe 13.

[0058] The wind power gearbox flow testing method of the present invention comprises:

[0059] First, the first-stage planetary package flow test device 2 is connected to the second-stage planetary package flow test device 3 by bolts, and then the second-stage planetary package flow test device 3 is connected to the gear box housing 100 by bolts, and the third-stage planetary package flow test device 4 is connected to the gear box housing 100 by bolts, the thin oil lubrication station 11 is connected to the gear box main oil inlet through the oil inlet pipe 12, and the gear box housing 100 is connected to the thin oil lubrication station 11 through the gear box return oil pipe 13;

[0060] During the test, after the lubricating oil parameters are set through the thin oil lubrication station 11, the lubricating oil enters the main oil inlet of the gear box through the oil inlet pipe 12, and the lubricating oil is divided into the secondary planetary package oil inlet and the tertiary planetary package oil inlet through the main oil inlet. The lubricating oil in the secondary planetary package oil inlet passes through the secondary copper ring and then through the secondary planetary package flow test stand 31 oil circuit to reach the various lubrication points of the secondary planetary package flow test stand 31. Part of the lubricating oil of the secondary planetary package flow test stand 31 passes through the primary copper ring and enters the primary planetary package flow test stand 21, and reaches the various lubrication points of the primary planetary package flow test stand 21 after passing through the primary planetary package flow test stand 21 oil circuit; The lubricating oil in the oil inlet of the first-stage planetary package passes through the third-stage copper ring and then through the oil circuit of the third-stage planetary package flow test frame 41 to reach each lubrication point of the third-stage planetary package flow test frame 41. The lubricating oil of the first-stage planetary package flow test frame 21, the second-stage planetary package flow test frame 31 and the third-stage planetary package flow test frame 41 are respectively led out of the gear box through the first drainage hose 22, the second drainage hose 32 and the third drainage hose 42 through each lubrication point, and then respectively measured by the first flow meter 23, the second flow meter 33 and the third flow meter 43, and then returned to the gear box, and returned to the thin oil lubrication station 11 through the gear box return oil pipe 13.

[0061] To sum up, compared with the prior art, the wind turbine gearbox flow testing device and testing method of the present invention have the following advantages and beneficial effects: the overall structure of the present invention is simple, and the flow testing device replaces the planetary packs at each level. Each lubrication point is connected to the flow meter through a drainage hose, and the real-time flow of each lubrication point can be effectively and accurately measured. The flow of each lubrication point of the gearbox under different flow rates and different oil temperature conditions can be accurately detected through the setting of the lubricating oil control station, and the actual lubrication flow of each lubrication point under different working conditions of the gearbox can be obtained. The performance parameters obtained by the test are conducive to the control of the overall effective lubrication flow of the gearbox, which effectively improves the reliability of the operation of the gearbox and at the same time increases the service life of the wind turbine gearbox.

[0062] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind turbine gearbox flow test device, characterized in that: The wind power gearbox flow testing device comprises: A lubricating oil control station, wherein the lubricating oil control station is used to control the lubricating oil output flow and oil temperature; A secondary planetary package flow test device, which is connected to the output end of the lubricating oil control station and is used to measure the lubricating oil flow of each lubricating point of the second planetary package; A first-level planetary package flow test device, the first-level planetary package flow test device is connected to the second-level planetary package flow test device, and is used to measure the lubricating oil flow of each lubrication point of the first planetary package; A three-stage planetary package flow test device is connected to the output end of the lubricating oil control station and is used to measure the lubricating oil flow of each lubricating point of the third planetary package.

2. The wind turbine gearbox flow testing device according to claim 1, characterized in that: The first-level planetary package flow test device comprises: A first-level planetary package flow test stand, which is used to replace the actual lubrication point oil path and oil hole specifications of the first-level planetary package; A first drainage hose, one end of which is connected to a lubrication point on the first-level planetary package flow test stand and is used to respectively drain the lubricating oil from each lubrication point; A first flow meter is connected to the other end of the first drainage hose and is used to measure the flow of lubricating oil at each lubrication point.

3. The wind turbine gearbox flow testing device according to claim 2, characterized in that: The secondary planetary package flow test device comprises: A secondary planetary package flow test stand, which is used to replace the actual lubrication point oil path and oil hole specifications of the secondary planetary package; A second drainage hose, one end of which is connected to a lubrication point on the secondary planetary bag flow test stand, and is used to respectively drain the lubricating oil from each lubrication point; The second flow meter is connected to the other end of the second drainage hose and is used to measure the flow of lubricating oil at each lubrication point.

4. The wind turbine gearbox flow testing device according to claim 3, characterized in that: The three-stage planetary package flow test device comprises: A three-stage planetary package flow test stand, which is used to replace the actual lubrication point oil path and oil hole specifications of the three-stage planetary package; A third drainage hose, one end of which is connected to a lubrication point on the three-stage planetary bag flow test stand, and is used to respectively drain the lubricating oil from each lubrication point; The third flow meter is connected to the other end of the third drainage hose and is used to measure the lubricating oil flow rate of each lubrication point.

5. The wind turbine gearbox flow testing device according to claim 4, characterized in that: The lubricating oil control station includes a thin oil lubrication station, an oil inlet pipe and a gear box oil return pipe. The output end of the thin oil lubrication station supplies oil to the first-stage planetary package flow test stand, the second-stage planetary package flow test stand and the third-stage planetary package flow test stand through the oil inlet pipe, and the input end of the thin oil lubrication station recovers lubricating oil from the first flowmeter, the second flowmeter and the third flowmeter through the gear box oil return pipe.

6. A wind turbine gearbox flow rate testing method implemented by using the wind turbine gearbox flow rate testing device according to any one of claims 1 to 5, characterized in that: Wind turbine gearbox flow test methods include: First, connect the first-stage planetary package flow test device to the second-stage planetary package flow test device through bolts, then connect the second-stage planetary package flow test device to the gear box body through bolts, and connect the third-stage planetary package flow test device to the gear box body through bolts, the thin oil lubrication station is connected to the gear box main oil inlet through the oil inlet pipe, and the gear box body is connected to the thin oil lubrication station through the gear box oil return pipe; During the test, after the lubricating oil parameters are set through the thin oil lubrication station, the lubricating oil enters the main oil inlet of the gearbox through the oil inlet pipe, and the lubricating oil is diverted through the main oil inlet to enter the secondary planetary package oil inlet and the tertiary planetary package oil inlet. The lubricating oil in the secondary planetary package oil inlet passes through the secondary copper ring and then enters the secondary planetary package flow test device to measure the lubricating oil flow of each lubrication point of the second planetary package. Part of the lubricating oil in the secondary planetary package flow test device passes through the primary copper ring and enters the first planetary package flow test device to measure the lubricating oil flow of each lubrication point of the first planetary package; the lubricating oil in the tertiary planetary package oil inlet passes through the tertiary copper ring and enters the tertiary planetary package flow test device to measure the lubricating oil flow of each lubrication point of the third planetary package.

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