Novel wind turbine main bearing vibration testing device

Abstract

The utility model discloses a novel wind turbine main bearing vibration testing device, which comprises a mounting seat, a driving part used for driving a bearing to rotate and a detection part used for carrying out vibration testing on the bearing, the driving component comprises a sliding groove which is formed in one side of the installation base and used for providing a sliding path, a screw rod which is arranged on the inner side of the sliding groove and used for driving and a first motor which is arranged at one end of the screw rod and used for driving. The fixing disc locks and fixes the fixing rods with different diameters through bolts, so that the workpieces with different diameters are supported and fixed through the fixing rods with different diameters, and the problems that according to an existing device, a supporting structure cannot be conveniently disassembled, assembled and replaced, the workpieces with different diameters are inconvenient to fix through supporting structures with different sizes, and the working efficiency is high are solved. The stability of rapid rotation of the workpiece is reduced; and the practicability of vibration detection of the workpiece by the equipment is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, in particular to a novel wind turbine main bearing vibration testing device. Background Art

[0002] Wind turbines mostly refer to wind turbines used for power generation. Wind generators are electrical equipment that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. Wind turbines are generally composed of components such as wind rotors, generators (including devices), direction regulators (tail fins), towers, speed limit safety mechanisms, and energy storage devices. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind force, and it converts the kinetic energy of the wind into the mechanical energy of the wind rotor shaft. The generator rotates and generates electricity driven by the wind rotor shaft. Broadly speaking, wind energy is also solar energy, so it can also be said that a wind turbine is a heat energy generator that uses the sun as a heat source and the atmosphere as a working medium. The bearings in wind turbines are important structures, and bearings are an important component in contemporary mechanical equipment. Its main function is It supports the mechanical rotating body, reduces the friction coefficient during its movement, and ensures its rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Among them, rolling bearings have been standardized and serialized. Rolling bearings generally consist of four parts: outer ring, inner ring, rolling element and cage. According to the shape of the rolling element, rolling bearings are divided into two categories: ball bearings and roller bearings. The bearing accuracy will affect the service life of the bearing, so a batch of bearings need to be quality tested after they are produced. Bearing testing mainly detects the radial vibration during use to reflect the accuracy of the bearing.

[0003] When existing equipment performs vibration detection on workpieces, the workpieces are prone to shifting or detaching. The support structure cannot be easily disassembled and replaced. It is not convenient to use support structures of different sizes to fix workpieces of different diameters, which reduces the stability of rapid rotation of the workpiece and affects the practicality of the equipment for vibration detection of the workpiece. Utility Model Content

[0004] The purpose of the utility model is to provide a novel wind turbine main bearing vibration test device to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel wind turbine main bearing vibration test device, comprising a mounting seat, a driving component for driving the bearing to rotate, and a detection component for performing a vibration test on the bearing, wherein the driving component comprises a sliding groove provided on one side of the mounting seat for providing a sliding path, a screw provided on the inner side of the sliding groove for driving, a first motor provided at one end of the screw for driving, a sliding block provided on the inner side of the sliding groove and located on the outer side of the screw for driving, a fixed block provided on the top of the sliding block for driving, a second motor provided on one side of the fixed block for providing power, an output shaft provided at one end of the second motor, a fixed disk provided at one end of the output shaft for driving, a fixed groove provided on the other side of the fixed block, a fixed rod provided on one side of the fixed disk for supporting a workpiece, four bolts arranged circumferentially on the outer side of the fixed disk for installing the fixed rod, and four locking grooves arranged circumferentially on the outer side of the fixed rod;

[0006] The screw rod passes through the sliding block and is threadedly connected to the sliding block, the sliding block is slidably connected to the sliding groove, the sliding block is fixedly connected to the fixed block, the output shaft is fixedly connected to the fixed disk, the bolt is threadedly connected to the fixed disk, and the fixed rod is movably connected to the fixed disk.

[0007] Preferably, the detection component includes a detector arranged at the other end of the top of the mounting seat, a fixed seat arranged at the top of the mounting seat and located on one side of the sliding groove for limiting, a movable through hole opened on the inner side of the fixed seat for providing an installation space, a plurality of fixed cavities arranged circumferentially on the outer side of the movable through hole, a support frame arranged on the inner side of the fixed cavity for extrusion, a sliding plate arranged on the inner side of the fixed cavity and located on one side of the support frame for extrusion, a plurality of vibration plates evenly arranged at the bottom of the sliding plate, a vibration point arranged at one end of the vibration plate for contact, and a converter arranged at the top of the fixed seat for transmitting signals, the sliding plate is slidably connected to the fixed cavity, the sliding plate is fixedly connected to the vibration plate, the vibration plate is slidably connected to the fixed seat, and the cross-section of the fixed cavity is a fan-shaped.

[0008] Preferably, a limiting block for limiting is provided on one side of the fixing plate, and a limiting groove for providing a limiting space is opened at one end of the fixing rod, and the cross-sections of the limiting block and the limiting groove are both in a cross shape.

[0009] Preferably, the inner side of the support frame is provided with a plurality of elastic frames for supporting uniform arrangement.

[0010] Preferably, a fixing plate for fixing is provided on the other side of the movable through hole, and a driven block for following is provided on one side of the fixing plate, and the driven block is rotatably connected to the fixing plate and does not separate.

[0011] Preferably, a plurality of guide rods arranged in a circumference are provided on the top of the inner side of the elastic frame, and a spring for squeezing is sleeved on the outer side of the guide rods, and the spring is fixedly connected to the elastic frame.

[0012] Preferably, an introduction portion for introduction is provided at one end of the sliding plate, and the cross-section of the introduction portion is trapezoidal.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The second motor can drive the fixed rod in the fixed plate to rotate through the output shaft, thereby improving the stability of the fixed rod driving the workpiece to rotate quickly and prevent the workpiece from deviating or falling off.

[0015] 2. The utility model includes a detector, a fixed seat, a movable through hole, a fixed cavity, a support frame, a sliding plate, a vibration plate, a vibration point and a converter. The sliding plate is slidably connected to the fixed cavity, the sliding plate is fixedly connected to the vibration plate, the vibration plate is slidably connected to the fixed seat, the cross-section of the fixed cavity is fan-shaped, the movable through hole can facilitate the fixed rod to drive the workpiece into the fixed seat, the support frame in the fixed cavity can squeeze and push the sliding plate, so that the sliding plate drives the vibration point to fit tightly with the outside of the workpiece through the vibration plate, when the second motor drives the workpiece to rotate rapidly through the fixed rod, if the workpiece moves radially, the outer ring of the workpiece will squeeze the vibration point, and then the vibration point will transmit the vibration information to the converter through the vibration plate, and the converter will convert the vibration signal into an electrical signal and transmit it to the detector, and the quality of the bearing can be judged by the data displayed by the detector, thereby improving the practicability of the equipment in vibration detection of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0018] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4The overall structure of the utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 5 It is a schematic diagram of the structure of the fixing plate, the fixing groove and the limiting block in the overall structure of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the fixing rod, the locking groove and the limiting groove in the overall structure of the utility model.

[0022] In the figure: 1. mounting seat; 11. sliding groove; 12. screw; 13. first motor; 14. sliding block; 15. fixed block; 16. second motor; 17. output shaft; 18. fixed plate; 19. fixed groove; 20. fixed rod; 21. bolt; 22. locking groove; 23. detector; 24. fixed seat; 25. movable through hole; 26. fixed cavity; 27. support frame; 28. sliding plate; 29. ​​vibration plate; 30. vibration point; 31. converter; 32. limit block; 33. limit groove; 34. elastic frame; 35. fixed plate; 36. driven block; 37. guide rod; 38. spring; 39. introduction part. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 6As shown, a novel wind turbine main bearing vibration test device provided by an embodiment of the utility model comprises a mounting seat 1, a driving component for driving the bearing to rotate, and a detection component for performing a vibration test on the bearing, wherein the driving component comprises a sliding groove 11 provided on one side of the mounting seat 1 for providing a sliding path, a screw 12 provided on the inner side of the sliding groove 11 for driving, a first motor 13 provided at one end of the screw 12 for driving, a sliding block 14 provided on the inner side of the sliding groove 11 and located on the outer side of the screw 12 for driving, a fixed block 15 provided on the top of the sliding block 14 for driving, a second motor 16 provided on one side of the fixed block 15 for providing power, an output shaft 17 provided at one end of the second motor 16, a fixed plate 18 provided at one end of the output shaft 17 for driving, a fixed groove 19 provided on the other side of the fixed block 15, a fixed rod 20 provided on one side of the fixed plate 18 for supporting a workpiece, four bolts 21 arranged circumferentially on the outer side of the fixed plate 18 for installing the fixed rod 20, and four locking grooves 22 arranged circumferentially on the outer side of the fixed rod 20;

[0027] The screw rod 12 passes through the sliding block 14 and is threadedly connected to the sliding block 14, the sliding block 14 is slidably connected to the sliding groove 11, the sliding block 14 is fixedly connected to the fixed block 15, the output shaft 17 is fixedly connected to the fixed plate 18, the bolt 21 is threadedly connected to the fixed plate 18, and the fixed rod 20 is movably connected to the fixed plate 18.

[0028] refer to Figure 2 and Figure 3 The detection component includes a detector 23 arranged at the other end of the top of the mounting seat 1, a fixed seat 24 arranged at the top of the mounting seat 1 and located on one side of the sliding groove 11 for limiting, an active through hole 25 opened on the inner side of the fixed seat 24 for providing an installation space, a plurality of fixed cavities 26 arranged circumferentially on the outer side of the active through hole 25, a support frame 27 arranged on the inner side of the fixed cavity 26 for extrusion, a sliding plate 28 arranged on the inner side of the fixed cavity 26 and located on one side of the support frame 27 for extrusion, a plurality of vibration plates 29 arranged evenly at the bottom of the sliding plate 28, a vibration point 30 arranged at one end of the vibration plate 29 for contact, and a converter 31 arranged at the top of the fixed seat 24 for transmitting signals, the sliding plate 28 is slidably connected to the fixed cavity 26, the sliding plate 28 is fixedly connected to the vibration plate 29, the vibration plate 29 is slidably connected to the fixed seat 24, and the cross-section of the fixed cavity 26 is a fan-shaped.

[0029] The above scheme is adopted: through the detector 23, the fixed seat 24, the movable through hole 25, the fixed cavity 26, the support frame 27, the sliding plate 28, the vibrating plate 29, the vibration point 30 and the converter 31, the sliding plate 28 is slidably connected to the fixed cavity 26, the sliding plate 28 is fixedly connected to the vibrating plate 29, the vibrating plate 29 is slidably connected to the fixed seat 24, the cross section of the fixed cavity 26 is fan-shaped, the movable through hole 25 can facilitate the fixing rod 20 to drive the workpiece into the fixed seat 24, and the support frame 27 in the fixed cavity 26 can squeeze the sliding plate 28 The sliding plate 28 is pushed so that the vibration point 30 is closely fitted to the outer side of the workpiece through the vibration plate 29. When the second motor 16 drives the workpiece to rotate rapidly through the fixed rod 20, if the workpiece moves radially, the outer ring of the workpiece will squeeze the vibration point 30. Then the vibration point 30 transmits the vibration information to the converter 31 through the vibration plate 29. The converter 31 converts the vibration signal into an electrical signal and transmits it to the detector 23. The quality of the bearing is judged by the data displayed by the detector 23, thereby improving the practicability of the equipment in vibration detection of the workpiece.

[0030] refer to Figure 5 and Figure 6 A limiting block 32 for limiting position is provided on one side of the fixed plate 18, and a limiting groove 33 for providing limiting space is opened at one end of the fixed rod 20, and the cross-sections of the limiting block 32 and the limiting groove 33 are both in a "cross" shape.

[0031] The above scheme is adopted: through the limit block 32 and the limit groove 33, the cross-sections of the limit block 32 and the limit groove 33 are both "X" shaped, and the limit block 32 can be embedded in the limit groove 33 at one end of the fixed rod 20 to limit and fix the fixed rod 20, thereby increasing the contact area between the fixed plate 18 and the fixed rod 20, and improving the stability of the fixed plate 18 driving the fixed rod 20 to rotate.

[0032] refer to Figure 3 The inner side of the support frame 27 is provided with a plurality of elastic frames 34 for supporting uniform arrangement.

[0033] By adopting the above solution, the elastic frames 34 and the plurality of elastic frames 34 can press the support frame 27 downward, thereby improving the stability and strength of the support frame 27 pressing down the sliding plate 28 .

[0034] refer to Figure 2 A fixing plate 35 for fixing is disposed on the other side of the movable through hole 25, and a driven block 36 for following is disposed on one side of the fixing plate 35, and the driven block 36 is rotatably connected to the fixing plate 35 and does not separate.

[0035] The above scheme is adopted: through the fixed plate 35 and the driven block 36, the driven block 36 is rotatably connected to the fixed plate 35 and does not disengage, the fixed plate 35 can support the driven block 36, the driven block 36 can contact one end of the fixed rod 20, and the fixed rod 20 drives the driven block 36 to rotate in the fixed plate 35 while rotating, which can improve the stability of the fixed rod 20 driving the workpiece to rotate and prevent the workpiece from being offset or detached.

[0036] refer to Figure 3 A plurality of guide rods 37 arranged in a circumference are provided on the top of the inner side of the elastic frame 34 , and a spring 38 for squeezing is sleeved on the outer side of the guide rods 37 , and the spring 38 is fixedly connected to the elastic frame 34 .

[0037] The above scheme is adopted: through the guide rod 37 and the spring 38, the spring 38 is fixedly connected to the elastic frame 34, the guide rod 37 can guide the spring 38 to prevent the spring 38 from being twisted under force, and the multiple springs 38 can squeeze the elastic frame 34 to improve the strength of the elastic frame 34 squeezing the support frame 27.

[0038] refer to Figure 3 One end of the sliding plate 28 is provided with an introduction portion 39 for introduction, and the cross section of the introduction portion 39 is a trapezoid.

[0039] The above solution is adopted: through the introduction part 39, the cross-section of the introduction part 39 is trapezoidal, so that the fixing rod 20 can drive the workpiece into the side of the vibration point 30 in the movable through hole 25, avoiding damage caused by collision or friction between the workpiece and the vibration plate 29.

[0040] The working principle of this utility model:

[0041] First, fix the fixing rod 20 on one side of the fixing plate 18, then turn the bolt 21 to insert one end of the screw rod 12 into the locking groove 22 on the outside of the fixing rod 20, then the limit block 32 on the inside of the fixing plate 18 is embedded in the limit groove 33 at one end of the fixing rod 20, then the workpiece is sleeved on the outside of the fixing rod 20, and then the first motor 13 is started to drive the screw rod 12 to rotate, and then the screw rod 12 drives the sliding block 14 to slide in the sliding groove 11 while driving the fixing block 15 to move, and then the fixing block 15 drives the workpiece into the movable through hole 25 through the fixing rod 20, and then the workpiece squeezes the introduction part 39 on one side of the sliding plate 28, and then the workpiece enters the inner side of the vibration point 30, and at this time, multiple springs 38 squeeze the elastic frame 34 The elastic frame 34 squeezes the support frame 27, and then the support frame 27 squeezes the multiple vibration plates 29 on one side of the sliding plate 28 to move, and then the vibration plate 29 drives the vibration point 30 to fit closely with the outside of the workpiece, and at the same time, the fixed rod 20 fits with one side of the driven block 36, and then the second motor 16 is started to drive the fixed rod 20 in the fixed disk 18 to rotate through the output shaft 17, and then the fixed rod 20 drives the workpiece to rotate. If the workpiece moves radially, the outer ring of the workpiece will squeeze the vibration point 30, and then the vibration point 30 will transmit the vibration information to the converter 31 through the vibration plate 29, and the converter 31 will convert the vibration signal into an electrical signal and transmit it to the detector 23, and the quality of the bearing is judged by the data displayed by the detector 23.

[0042] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel wind turbine main bearing vibration test device, comprising a mounting seat (1), a driving component for driving the bearing to rotate, and a detection component for performing a vibration test on the bearing, characterized in that: The driving component comprises a sliding groove (11) provided on one side of the mounting seat (1) for providing a sliding path, a screw rod (12) provided on the inner side of the sliding groove (11) for driving, a first motor (13) provided on one end of the screw rod (12) for driving, a sliding block (14) provided on the inner side of the sliding groove (11) and located on the outer side of the screw rod (12) for driving, a fixed block (15) provided on the top of the sliding block (14) for driving, a second motor (16) provided on one side of the fixed block (15) for providing power, an output shaft (17) provided on one end of the second motor (16), a fixed plate (18) provided on one end of the output shaft (17) for driving, a fixed groove (19) provided on the other side of the fixed block (15), a fixed rod (20) provided on one side of the fixed plate (18) for supporting a workpiece, four bolts (21) arranged circumferentially on the outer side of the fixed plate (18) for mounting the fixed rod (20), and four locking grooves (22) arranged circumferentially on the outer side of the fixed rod (20); The screw rod (12) passes through the sliding block (14) and is threadedly connected thereto; the sliding block (14) is slidably connected to the sliding groove (11); the sliding block (14) is fixedly connected to the fixed block (15); the output shaft (17) is fixedly connected to the fixed disk (18); the bolt (21) is threadedly connected to the fixed disk (18); and the fixed rod (20) is movably connected to the fixed disk (18).

2. A novel wind turbine main bearing vibration test device according to claim 1, characterized in that: The detection component comprises a detector (23) arranged at the other end of the top of the mounting seat (1), a fixed seat (24) arranged at the top of the mounting seat (1) and located on one side of the sliding groove (11) for limiting position, a movable through hole (25) opened on the inner side of the fixed seat (24) for providing a mounting space, a plurality of fixed cavities (26) arranged in a circumferential manner on the outer side of the movable through hole (25), a support frame (27) arranged on the inner side of the fixed cavity (26) for squeezing, and a support frame (27) arranged on the inner side of the fixed cavity (26) and located on one side of the support frame (27). A sliding plate (28) for extrusion, a plurality of vibration plates (29) evenly arranged at the bottom of the sliding plate (28), a vibration point (30) for contacting provided at one end of the vibration plate (29), and a converter (31) for transmitting signals provided at the top of a fixed seat (24), wherein the sliding plate (28) is slidably connected to a fixed cavity (26), the sliding plate (28) is fixedly connected to the vibration plate (29), the vibration plate (29) is slidably connected to a fixed seat (24), and the cross section of the fixed cavity (26) is fan-shaped.

3. The novel wind turbine main bearing vibration test device according to claim 1 is characterized in that: A limiting block (32) for limiting position is provided on one side of the fixing plate (18), and a limiting groove (33) for providing a limiting space is provided on one end of the fixing rod (20), and the cross sections of the limiting block (32) and the limiting groove (33) are both in the shape of a cross.

4. The novel wind turbine main bearing vibration test device according to claim 2 is characterized in that: The inner side of the support frame (27) is provided with a plurality of elastic frames (34) for supporting uniform arrangement.

5. The novel wind turbine main bearing vibration test device according to claim 2 is characterized in that: A fixing plate (35) for fixing is provided on the other side of the movable through hole (25), and a driven block (36) for following is provided on one side of the fixing plate (35). The driven block (36) is rotatably connected to the fixing plate (35) and does not separate.

6. The novel wind turbine main bearing vibration test device according to claim 4 is characterized in that: A plurality of guide rods (37) arranged in a circumferential manner are provided on the top of the inner side of the elastic frame (34), and a spring (38) for squeezing is sleeved on the outer side of the guide rod (37), and the spring (38) is fixedly connected to the elastic frame (34).

7. The novel wind turbine main bearing vibration test device according to claim 2 is characterized in that: An introduction portion (39) for introduction is provided at one end of the sliding plate (28), and the introduction portion (39) has a trapezoidal cross section.

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