Coupling for wind turbine generator test bed
By designing a coupling of the wind turbine test bench, the combined structure of pipe parts, connectors and rubber ball joints is used to achieve the effect of correction function and reducing support for support. The problem of increasing correction and support for the increasing reaction force in the wind turbine test.
Patent Information
- Application Number
- CN202421075573.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing couplings cannot achieve the deviation correction function during the test of the entire wind turbine test bench, and when the coaxial degree becomes worse, the increase in the reaction force is too large to meet the needs of the test operation.
A type of wind turbine testing table is designed to use a pipeline, first connector, second connector, and component component of the component. Rigid deflection and rubber deformation can be aligned with the same axis of the first connector and the second connector.
It achieves a correction capability that exceeds that of ordinary universal joint couplings under large torque loads, achieves a large correction distance capability at a small axial distance, and reduces the support reaction force at the same correction distance, meeting the requirements Test requirements for wind turbine complete machine test bench.
Smart Images
Figure CN222391803U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of couplings, and in particular relates to a coupling for a wind turbine test bench. Background Art
[0002] A coupling is a device that connects the active end and the driven end. There are many types. Different types of couplings are used in different industries and working conditions. The complete machine test bench in the wind turbine industry generally uses a universal coupling to achieve the connection between the test bench drive end and the main shaft of the wind turbine.
[0003] At present, during the test process, as the whole machine test changes from pure torque form to loading to six degrees of freedom, the drive end of the wind turbine whole machine test bench and the main shaft end of the wind turbine are not on the same axis, and the existing coupling structure cannot achieve the correction function; secondly, the support reaction force increase caused by the deterioration of coaxiality of the existing coupling also changes too much, which does not meet the test operation of the wind turbine whole machine test bench. Utility Model Content
[0004] The utility model aims to solve the problems in the prior art and provides a coupling for a wind turbine test bench.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A coupling for a wind turbine test bench, comprising:
[0007] Pipe fittings;
[0008] a first connecting member and a second connecting member, wherein the first connecting member and the second connecting member are connected to the pipe member via a deviation correction component;
[0009] The first connecting member is used to be installed on the driving end of the wind turbine test bench, and the second connecting member is used to be installed on the main shaft of the wind turbine;
[0010] Wherein, in the process of the wind turbine test bench driving the main shaft of the wind turbine to rotate through the first connection and the second connection member, the deviation correction component is used to make the first connection member and the second connection member on the same axis;
[0011] The deviation-correcting component comprises a rubber ball joint and a connecting piece. Both ends of the connecting piece are provided with mounting holes. The rubber ball joint is installed in the two mounting holes. A fixing piece is provided on the rubber ball joint.
[0012] Further, the rubber ball joint comprises an outer bushing, rubber, an inner bushing and a ball joint, and the ball joint is installed in the inner bushing;
[0013] The outer bushing is installed on the outer side of the rubber, and the rubber is wrapped on the outer side of the inner bushing.
[0014] Furthermore, the fixing member is a pin.
[0015] Furthermore, the first connecting member is a first flange.
[0016] Furthermore, the second connecting member is a second flange.
[0017] Furthermore, the pipe fitting is a hollow pipe.
[0018] Compared with the prior art, the utility model has the following beneficial effects: BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 This is an overall schematic diagram of a coupling for a wind turbine test bench provided by the utility model;
[0021] Figure 2 This is an axial view of a pipe fitting in a coupling for a wind turbine test bench provided by the utility model;
[0022] Figure 3 A cross-sectional view of a rubber ball joint in a coupling for a wind turbine test bench provided by the utility model;
[0023] Figure 4 A schematic diagram of the swing of a first connecting member and a second connecting member in a coupling for a wind turbine test bench provided by the utility model;
[0024] Among them: 1. first connecting piece; 2. fixing piece; 3. pipe fitting; 4. second connecting piece; 5. rubber ball joint piece; 6. connecting piece. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, 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 part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0028] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0029] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0030] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] The present embodiment is further described in detail below with reference to the accompanying drawings:
[0032] This embodiment provides a coupling for a wind turbine test bench.
[0033] According to a coupling for a wind turbine test bench provided in this embodiment, Figure 1-Figure 4As shown, it includes a pipe 3; the first connecting member 1 and the second connecting member 4 are both connected to the pipe 3 through a correction component; the first connecting member 1 is used to be installed on the driving end of the wind turbine test bench, and the second connecting member 4 is used to be installed on the main shaft of the wind turbine; wherein, in the process of the wind turbine test bench driving the main shaft of the wind turbine to rotate through the first connecting member 1 and the second connecting member 4, the correction component is used to make the first connecting member 1 and the second connecting member 4 on the same axis. By installing the correction component on the first connecting member 1 and the second connecting member 4, in the process of the wind turbine test bench driving the main shaft of the wind turbine to rotate through the first connecting member 1 and the second connecting member 4, when the first connecting member 1 and the second connecting member 4 are not on the same axis, the correction component can correct the positional relationship between the first connecting member 1 and the second connecting member 4, so that the first connecting member 1 and the second connecting member 4 are on the same axis.
[0034] Furthermore, in the present embodiment, the deviation correction component comprises a rubber ball joint 5 and a connecting member 6, mounting holes are provided at both ends of the connecting member 6, the rubber ball joint 5 is installed in the two mounting holes, and the number of the connecting members 6 is provided in two groups, one end of one group of connecting members 6 is connected to the pipe fitting 3, and the other end is linked to the first connecting member 1, and one end of another group of connecting members 6 is connected to the pipe fitting 3, and the other end is connected to the second connecting member 4, and the number of each group of connecting members 6 is three; thereby, the coupling has a deviation correction capability exceeding the performance of a general universal joint coupling under a large torque load, and realizes a large deviation correction distance capability at a smaller axial distance, and at the same deviation correction distance, generates much smaller support reaction force than universal joints and other types of couplings.
[0035] In this embodiment, the rubber ball joint 5 includes an outer sleeve 502, rubber 503, an inner sleeve 504 and a ball joint 505. The ball joint 505 is installed in the inner sleeve 504, the outer sleeve 502 is installed on the outside of the rubber 503, and the rubber 503 is wrapped on the outside of the inner sleeve 504. In specific operation, when the first connecting member 1 and the second connecting member 24 are not on the same axis, the ball joint 505 in the rubber joint assembly 5 is rigidly deflected to achieve correction; if the eccentricity of the first connecting member 1 and the second connecting member 4 exceeds the correction ability of the ball joint 505, the rubber 503 vulcanized between the outer sleeve 502 and the inner sleeve 504 is deformed to further improve the correction ability. When the ball joint 505 in the rubber joint 5 is rigidly deflected, because of the ball hinge pair, the connection of the middle hollow tube 3 will match the state of the ball joint 505 at both ends of the hollow tube 3, so as to achieve the correction of the small reaction force.
[0036] In this embodiment, the first connecting member 1 is preferably a first flange.
[0037] In this embodiment, the second connecting member 4 is preferably a second flange.
[0038] In this embodiment, the pipe 3 is preferably a hollow pipe.
[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A coupling for a wind turbine test bench, characterized in that: include: Pipe fittings (3); A first connecting member (1) and a second connecting member (4), wherein the first connecting member (1) and the second connecting member (4) are connected to the pipe member (3) via a deviation correction component; The first connecting member (1) is used to be installed on the driving end of the wind turbine test bench, and the second connecting member (4) is used to be installed on the main shaft of the wind turbine; Wherein, when the driving end of the wind turbine test bench drives the main shaft of the wind turbine to rotate via the first connecting member (1) and the second connecting member (4), the deviation correction component is used to make the first connecting member (1) and the second connecting member (4) on the same axis; The deviation-correcting assembly comprises a rubber ball joint (5) and a connecting piece (6), the connecting piece (6) having mounting holes at both ends, the rubber ball joint (5) being mounted in the two mounting holes, and the rubber ball joint (5) being provided with a fixing piece (2).
2. The coupling according to claim 1, characterized in that: The rubber ball joint (5) comprises an outer bushing (502), rubber (503), an inner bushing (504) and a ball joint (505), wherein the ball joint (505) is installed in the inner bushing (504); The outer bushing (502) is installed on the outside of the rubber (503), and the rubber (503) is wrapped around the outside of the inner bushing (504).
3. The coupling according to claim 1, characterized in that: The fixing member (2) is a pin.
4. The coupling according to claim 1, characterized in that: The first connecting member (1) is a first flange.
5. The coupling according to claim 1, characterized in that: The second connecting member (4) is a second flange.
6. The coupling according to claim 1, characterized in that: The pipe fitting (3) is a hollow pipe.