Abnormal vibration detection device for wind power generation bearing

Abstract

The invention discloses a wind power generation bearing vibration anomaly detection device, and relates to the technical field of wind power generation bearing detection. An inner ring and an outer ring of a to-be-detected bearing are respectively fixed through a first bearing mechanism and a second bearing mechanism, and the inner ring and the outer ring of the to-be-detected bearing are respectively fixed through a first adjusting mechanism and a second adjusting mechanism; the detection end of the detection mechanism and the inner ring, the outer ring and the side face of the to-be-detected bearing are subjected to contact measurement respectively, multi-point measurement is achieved, the vibration condition of the bearing can be detected more comprehensively, the inner ring and the outer ring of the to-be-detected bearing rotate one by one and do not rotate one by one, and therefore vibration detection is conducted on the to-be-detected bearing in different rotating states. Therefore, the vibration signal generated by the independent rotation of the inner ring or the outer ring is separated, the position of the vibration source can be identified more accurately, and the detection result is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation bearing detection, in particular to a wind power generation bearing vibration abnormality detection device. Background Art

[0002] The wind turbine bearing vibration anomaly detection device mainly converts the vibration signal into an electrical signal through the vibration sensor installed on it, and uses a vibration analysis instrument to analyze and evaluate the collected vibration signal. If the data analysis result exceeds the preset vibration threshold or the vibration characteristics change, it is judged as bearing vibration abnormality.

[0003] Traditional detection devices cannot effectively realize the independent rotation control of the inner and outer rings of wind turbine bearings, resulting in the inability to accurately distinguish the vibration signals generated by the rotation of the inner or outer ring alone, which leads to inaccurate identification of the vibration source, affecting the accuracy of the detection results. The detection probe of the traditional detection device can usually only detect specific positions of the bearing, which may cause certain potential vibration anomalies to be missed, thereby affecting the detection results. The traditional detection device may not have a positioning structure, and the installation position of the bearing to be tested may be different during detection, resulting in deviations in the detection position and errors, affecting the detection results. The traditional detection device may change position due to bearing vibration, resulting in the disconnection of the vibration sensor and the bearing, and the vibration sensor cannot always remain in contact with the bearing, resulting in the inability to continuously collect vibration signals, thereby affecting the detection results. Summary of the invention

[0004] The object of the present invention is to provide a wind power generation bearing vibration abnormality detection device to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wind power generation bearing vibration abnormality detection device, a bearing to be tested is installed on the detection device, the detection device comprises a base, a No. 1 bearing mechanism, a No. 2 bearing mechanism, a No. 1 adjustment mechanism, a No. 2 adjustment mechanism and a detection mechanism, the base is fixedly connected to the No. 1 bearing mechanism, the No. 1 bearing mechanism abuts against the inner ring of the bearing to be tested, the No. 2 bearing mechanism is fixedly connected to the base, the No. 2 bearing mechanism abuts against the outer ring of the bearing to be tested, the No. 1 bearing mechanism is fixedly connected to the No. 1 adjustment mechanism, the No. 2 adjustment mechanism is fixedly connected to the base, seven detection mechanisms are provided, two detection mechanisms abut against the inner ring of the bearing to be tested, the No. 1 adjustment mechanism is fixedly connected to the detection mechanisms of the two inner rings, three detection mechanisms abut against the outer ring of the bearing to be tested, two detection mechanisms abut against the side of the bearing to be tested, and the No. 2 adjustment mechanism is fixedly connected to the three outer rings and the detection mechanisms of the two side surfaces.

[0007] The No. 1 bearing mechanism and the No. 2 bearing mechanism are fixed through the base to ensure the stability of the device, the No. 1 bearing mechanism is abutted against the inner ring of the bearing to be tested to fix the inner ring of the bearing to be tested, and the No. 2 bearing mechanism is abutted against the outer ring of the bearing to be tested to fix the outer ring of the bearing to be tested, and the No. 1 adjustment mechanism is used to make multiple detection mechanisms abut against the outer ring of the bearing to be tested and the sides of the inner and outer rings respectively, and the No. 2 adjustment mechanism is used to make the detection mechanism connected thereto abut against the inner ring of the bearing to be tested, and by abutting the multiple detection mechanisms against the outer ring, inner ring and side of the bearing to be tested, multi-point measurement is achieved, so that the detection mechanism can more comprehensively detect the vibration of the bearing to be tested, thereby improving the accuracy of the measurement, and the inner and outer rings of the bearing to be tested are respectively fixed by two bearing mechanisms, so that the inner and outer rings of the bearing to be tested can be rotated separately, thereby performing vibration detection on the bearing to be tested under different rotation states, separating the vibration signals generated by the inner and outer rings, thereby more accurately identifying the position of the vibration source, and making the detection result more accurate.

[0008] Furthermore, the No. 1 bearing mechanism includes a No. 1 motor, a rotating shaft, a bidirectional electric cylinder, a No. 1 clamp and a No. 1 machine base. The No. 1 motor is fixedly connected to the No. 1 machine base, the No. 1 machine base is fixedly connected to the base, the output end of the No. 1 motor is fixedly connected to the rotating shaft, the rotating shaft and the bidirectional electric cylinder are fixedly connected, there are two No. 1 clamps, the output ends of the bidirectional electric cylinder are respectively fixedly connected to the two No. 1 clamps, and the bidirectional electric cylinder is fixedly connected to the No. 1 adjustment mechanism.

[0009] Through the bidirectional electric cylinder, the two No. 1 clamps are driven to move to both sides respectively, so that the two No. 1 clamps are tightly abutted against the inner ring of the bearing to be tested, so that the No. 1 clamps can fix the inner ring of the bearing to be tested, and the No. 1 motor is fixed through the No. 1 machine base to ensure the stability of the No. 1 motor. The rotating shaft is driven to rotate by the No. 1 motor, and the bidirectional electric cylinder rotates with the rotating shaft, so that the No. 1 clamp is rotated and drives the inner ring of the bearing to be tested to rotate, thereby realizing the rotation and fixation of the inner ring of the bearing to be tested.

[0010] Furthermore, the No. 2 bearing mechanism includes a No. 2 motor, a No. 1 electric cylinder, a No. 1 connecting rod, a No. 2 connecting rod, a connecting block, a No. 3 connecting rod, a No. 2 splint and a No. 2 machine base. The No. 2 motor is fixedly connected to the No. 2 machine base, the No. 2 machine base is fixedly connected to the base, the output end of the No. 2 motor is fixedly connected to the No. 1 electric cylinder, the No. 1 connecting rod is fixedly connected to the No. 1 electric cylinder, the No. 2 connecting rod and the No. 1 connecting rod are hingedly connected, the output end of the No. 1 electric cylinder is fixedly connected to the connecting block, the connecting block is hingedly connected to the No. 3 connecting rod, the No. 2 connecting rod and the No. 3 connecting rod are hingedly connected, the No. 2 connecting rod and the No. 2 splint are hingedly connected, the No. 3 connecting rod and the No. 2 splint are hingedly connected, the No. 2 splint is hingedly connected, and the No. 2 splint abuts against the outer ring of the bearing to be tested.

[0011] The No. 2 machine base provides a stable supporting foundation for the entire No. 2 bearing mechanism, and the No. 1 electric cylinder is fixedly connected to the connecting block through the output end of the No. 1 electric cylinder, so that the No. 1 electric cylinder pushes the connecting block to move, and the No. 1 connecting rod is fixedly connected to the No. 1 electric cylinder, the No. 2 connecting rod is hinged to the No. 1 connecting rod, the No. 2 splint is hinged to the No. 2 connecting rod and the No. 3 connecting rod respectively, and the connecting block is hinged to the No. 3 connecting rod, so that the No. 2 connecting rod is rotated along the hinge connected to the connecting block, so that the two No. 2 splints can move closer and further apart, and the two No. 2 splints are brought closer to each other along the axis of the No. 1 electric cylinder until they abut against the outer ring of the bearing to be tested, thereby fixing the outer ring of the bearing to be tested, and the No. 1 electric cylinder is driven to rotate through the No. 2 motor, and the No. 1 electric cylinder is kept stationary relative to the No. 1 electric cylinder under the action of the connecting rod, so that the No. 2 splint rotates with the No. 1 electric cylinder, thereby driving the outer ring of the bearing to be tested to rotate.

[0012] Furthermore, the No. 1 adjustment mechanism includes a shell, a No. 3 motor, a No. 1 transmission shaft, a No. 1 gear, a No. 2 gear, a No. 2 transmission shaft and a rack. The shell is fixedly connected to the bidirectional electric cylinder, the shell is provided with a mounting groove, the No. 3 motor is placed in the mounting groove, the output end of the No. 3 motor is fixedly connected to the No. 1 transmission shaft, the No. 1 gear is fixedly connected to the No. 1 transmission shaft, the No. 2 gear is meshed with the No. 1 gear, the No. 2 transmission shaft is fixedly connected to the No. 2 gear, the No. 2 transmission shaft is rotatably connected to the shell, the No. 1 transmission shaft is rotatably connected to the shell, the rack is meshed with the No. 2 gear, the shell is provided with a No. 1 sliding groove, the rack is slidably connected to the No. 1 sliding groove, and the rack is fixedly connected to the detection mechanism.

[0013] The No. 1 adjustment mechanism is fixed on the bidirectional electric cylinder through the shell, and the mounting groove is provided through the shell, so that the No. 1 transmission shaft and the No. 2 transmission shaft can rotate stably. The No. 3 motor drives the No. 1 transmission shaft to rotate, so that the No. 1 transmission shaft drives the No. 1 gear to rotate, and the No. 1 gear and the No. 2 gear are meshed to rotate the No. 2 gear and the No. 2 transmission shaft, so that the rack meshed with the No. 2 gear moves horizontally in the rotation direction, and the rack and the detection mechanism are fixedly connected to make the detection mechanism abut against the inner ring of the bearing to be tested, so as to ensure the consistency of the contact position and force between the detection mechanism and the inner ring of the bearing to be tested, thereby improving the accuracy and reliability of the detection and reducing the error caused by position deviation or uneven force.

[0014] Furthermore, the No. 2 adjustment mechanism includes the No. 4 motor, the screw rod, the nut seat, the No. 2 electric cylinder, the No. 1 fixed plate and the No. 2 fixed plate. The No. 4 motor is fixedly connected to the base, the output end of the No. 4 motor is fixedly connected to the screw rod, the nut seat and the screw rod are threadedly connected, the screw rod and the No. 1 machine base are rotatably connected, the No. 2 electric cylinder and the nut seat are fixedly connected, the No. 2 electric cylinder and the No. 2 fixed plate are fixedly connected, the No. 1 fixed plate and the nut seat are fixedly connected, the No. 1 fixed plate and the two side detection mechanisms are fixedly connected, the two detection mechanisms are distributed in the vertical direction, and the No. 2 fixed plate is fixedly connected to the three outer ring detection mechanisms.

[0015] The No. 4 motor is used to drive the screw to rotate, and the screw and the No. 1 machine base are rotatably connected to make the screw rotate along the axis of the output end of the No. 4 motor, so that the nut seat can move stably with the screw, ensuring that the No. 1 fixing plate moves to the specified position with the nut seat. The two detection mechanisms are distributed in the vertical direction, so that the contact force between the detection mechanism and the inner ring side and the outer ring side of the bearing to be tested remains consistent. The No. 2 electric cylinder is used to push the No. 2 fixing plate connected to it to move upward, so that the detection mechanism on the No. 2 fixing plate abuts against the outer ring of the bearing to be tested, ensuring the consistency of the contact position and force between the detection mechanism and the outer ring of the bearing to be tested, thereby improving the accuracy and reliability of detection and reducing errors caused by position deviation or uneven force.

[0016] Furthermore, each detection mechanism includes a vibration sensor, a sliding cylinder and a spring. The sliding cylinder is provided with a No. 2 sliding groove. The vibration sensor is slidingly connected to the No. 2 sliding groove. The spring is placed in the No. 2 sliding groove. The vibration sensor and the spring are fixedly connected. The three outer ring sliding cylinders are fixedly connected to the No. 1 fixed plate. The two side sliding cylinders are fixedly connected to the No. 2 fixed plate. The two inner ring sliding cylinders are fixedly connected to the rack. The vibration sensor abuts against the bearing to be tested.

[0017] The vibration sensor is moved along with the rack, the first fixing plate and the second fixing plate through the sliding cylinder, so that the vibration sensor is respectively in contact with the inner and outer rings and the side surfaces of the bearing to be tested. The sliding cylinder is provided with a second sliding groove, so that the vibration sensor can slide freely in the sliding groove of the sliding cylinder. The spring placed in the second sliding groove keeps the vibration sensor in contact with the bearing to be tested at all times, avoiding the vibration of the bearing to be tested and causing position changes, which may cause the vibration sensor and the bearing to be tested to be disconnected, thereby ensuring the continuous collection of vibration signals and the accuracy of the measurement results.

[0018] Furthermore, the rotating shaft is slidably connected to the two No. 1 clamping plates, the No. 1 clamping plates are provided with positioning plates, the positioning plates are abutted against the side of the bearing to be tested, the No. 1 clamping plates are provided with limit blocks, the rotating shaft is provided with limit grooves, the limit blocks and the limit grooves are slidably connected

[0019] A positioning plate is provided on the No. 1 clamping plate, so that the positioning plate and the side of the bearing to be tested are abutted, so that the bearing to be tested is installed in a predetermined position of the detection device, reducing the error caused by the deviation of the detection position of the bearing to be tested, ensuring the accuracy of the detection, and limiting the axial movement of the No. 1 clamping plate through the sliding connection of the limit block and the limit groove, avoiding the axial movement of the No. 1 clamping plate due to centrifugal force when it rotates, causing the bearing to be tested to move axially with it, thereby reducing the error of axial vibration detection.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the No. 1 bearing mechanism and the No. 2 bearing mechanism, the inner and outer rings of the bearing to be tested can rotate separately, so that one rotates and the other does not rotate, so as to perform vibration detection on the bearing to be tested under different rotation states, and then separate the vibration signal generated by the independent rotation of the inner ring or the outer ring, so as to more accurately identify the position of the vibration source and make the detection result more accurate.

[0022] 2. Through multiple detection mechanisms, multi-point contact is achieved with the inner and outer rings and sides of the bearing to be tested, so as to achieve multi-point measurement. This can more comprehensively detect the vibration of the bearing, reduce the differences caused by the different vibration positions of the bearing to be tested, and capture more vibration information, thereby more accurately evaluating the vibration of the bearing to be tested.

[0023] 3. The vibration sensor and the bearing to be tested are brought into contact with each other through the spring placed in the No. 2 sliding groove, and a part of the spring is compressed, so that the vibration sensor and the bearing to be tested always keep in contact with each other, avoiding the vibration of the bearing to be tested and causing position change, which would cause the vibration sensor and the bearing to be tested to be disconnected, thus ensuring the continuous collection of vibration signals and the accuracy of the measurement results.

[0024] 4. A positioning plate is provided on the clamping plate so that the positioning plate and the side of the bearing to be tested are abutted, so that the bearing to be tested is installed in a predetermined position of the detection device, reducing the error caused by the deviation of the detection position and ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the second adjustment mechanism of the present invention;

[0027] Figure 3 It is a structural schematic diagram of a No. 1 bearing mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the No. 2 bearing mechanism of the present invention;

[0029] Figure 5 yes Figure 2 A magnified view of a local area A;

[0030] Figure 6 It is a structural schematic diagram of the first adjustment mechanism of the present invention;

[0031] Figure 7 yes Figure 6 A partial enlarged view of B;

[0032] Figure 8 It is a schematic diagram of the structure of the first splint of the present invention.

[0033] In the figure: 1, base; 2, bearing to be tested; 3, bearing mechanism No. 1; 31, motor No. 1; 32, rotating shaft; 321, limit slot; 33, bidirectional electric cylinder; 34, clamping plate No. 1; 341, positioning plate; 342, limit block; 35, machine base No. 1; 4, bearing mechanism No. 2; 41, motor No. 2; 42, electric cylinder No. 1; 43, connecting rod No. 1; 44, connecting rod No. 2; 45, connecting block; 46, connecting rod No. 3; 47, clamping plate No. 2; 48, machine base No. 2; 5, adjusting machine No. 1 Structure; 51. Shell; 511. Mounting slot; 512. Sliding slot No. 1; 52. Motor No. 3; 53. Transmission shaft No. 1; 54. Gear No. 1; 55. Gear No. 2; 56. Transmission shaft No. 2; 57. Rack; 6. Adjustment mechanism No. 2; 61. Motor No. 4; 62. Screw rod; 63. Nut seat; 64. Electric cylinder No. 2; 65. Fixed plate No. 1; 66. Fixed plate No. 2; 7. Detection mechanism; 71. Vibration sensor; 72. Sliding cylinder; 721. Sliding slot No. 2; 73. Spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0035] Example: Figure 1 and Figure 2 As shown, the present invention provides a technical solution for a wind power generation bearing vibration abnormality detection device, a wind power generation bearing vibration abnormality detection device, a bearing 2 to be tested is installed on the detection device, the detection device comprises a base 1, a No. 1 bearing mechanism 3, a No. 2 bearing mechanism 4, a No. 1 adjustment mechanism 5, a No. 2 adjustment mechanism 6 and a detection mechanism 7, the base 1 is fixedly connected to the No. 1 bearing mechanism 3, the No. 1 bearing mechanism 3 abuts against the inner ring of the bearing 2 to be tested, the No. 2 bearing mechanism 4 is fixedly connected to the base 1, the No. 2 bearing mechanism 4 abuts against the outer ring of the bearing 2 to be tested, the No. 1 bearing mechanism 3 is fixedly connected to the No. 1 adjustment mechanism 5, the No. 2 adjustment mechanism 6 is fixedly connected to the base 1, and seven detection mechanisms 7 are provided, two detection mechanisms 7 abut against the inner ring of the bearing 2 to be tested, the No. 1 adjustment mechanism 5 is fixedly connected to the detection mechanisms 7 of the two inner rings, three detection mechanisms 7 abut against the outer ring of the bearing 2 to be tested, two detection mechanisms 7 abut against the side of the bearing 2 to be tested, and the No. 2 adjustment mechanism 6 is fixedly connected to the three outer rings and the detection mechanisms 7 of the two sides.

[0036] The No. 1 bearing mechanism 3 and the No. 2 bearing mechanism 4 are fixed by the base 1 to ensure the stability of the device, the No. 1 bearing mechanism 3 is abutted against the inner ring of the bearing 2 to be tested to fix the inner ring of the bearing 2 to be tested, and the No. 2 bearing mechanism 4 is abutted against the outer ring of the bearing 2 to be tested to fix the outer ring of the bearing 2 to be tested, and the No. 1 adjustment mechanism 5 is used to make multiple detection mechanisms 7 abut against the outer ring of the bearing 2 to be tested and the sides of the inner and outer rings, and the No. 2 adjustment mechanism 6 is used to make the detection mechanism 7 connected thereto abut against the inner ring of the bearing 2 to be tested, and by abutting the multiple detection mechanisms 7 against the outer ring, inner ring and side of the bearing 2 to be tested, multi-point measurement is achieved, so that the detection mechanism 7 can more comprehensively detect the vibration of the bearing 2 to be tested, thereby improving the accuracy of the measurement, and the inner and outer rings of the bearing 2 to be tested are respectively fixed by two bearing mechanisms, so that the inner and outer rings of the bearing 2 to be tested can be rotated respectively, so that the bearing 2 to be tested is subjected to vibration detection under different rotation states, and the vibration signals generated by the inner and outer rings are separated, so as to more accurately identify the position of the vibration source and make the detection result more accurate.

[0037] like Figure 2 and Figure 3 As shown, the No. 1 supporting mechanism 3 includes a No. 1 motor 31, a rotating shaft 32, a bidirectional electric cylinder 33, a No. 1 clamping plate 34 and a No. 1 machine base 35. The No. 1 motor 31 is fixedly connected to the No. 1 machine base 35, the No. 1 machine base 35 is fixedly connected to the base 1, the output end of the No. 1 motor 31 is fixedly connected to the rotating shaft 32, the rotating shaft 32 is fixedly connected to the bidirectional electric cylinder 33, the No. 1 clamping plate 34 is provided with two pieces, the output ends of the bidirectional electric cylinder 33 are respectively fixedly connected to the two No. 1 clamping plates 34, and the bidirectional electric cylinder 33 is fixedly connected to the No. 1 adjustment mechanism 5.

[0038] Through the bidirectional electric cylinder 33, the two No. 1 clamps 34 are driven to move to both sides respectively, so that the two No. 1 clamps 34 and the inner ring of the bearing 2 to be tested are tightly abutted, so that the No. 1 clamps 34 fix the inner ring of the bearing 2 to be tested, and the No. 1 motor 31 is fixed through the No. 1 machine base 35 to ensure the stability of the No. 1 motor 31. The rotating shaft 32 is driven to rotate by the No. 1 motor 31, and the bidirectional electric cylinder 33 rotates with the rotating shaft 32, so that the No. 1 clamp 34 rotates and drives the inner ring of the bearing 2 to be tested to rotate, thereby realizing the rotation and fixation of the inner ring of the bearing 2 to be tested.

[0039] like Figure 2 and Figure 4As shown, the No. 2 bearing mechanism 4 includes a No. 2 motor 41, a No. 1 electric cylinder 42, a No. 1 connecting rod 43, a No. 2 connecting rod 44, a connecting block 45, a No. 3 connecting rod 46, a No. 2 clamping plate 47 and a No. 2 machine base 48. The No. 2 motor 41 is fixedly connected to the No. 2 machine base 48, the No. 2 machine base 48 is fixedly connected to the base 1, the output end of the No. 2 motor 41 is fixedly connected to the No. 1 electric cylinder 42, the No. 1 connecting rod 43 is fixedly connected to the No. 1 electric cylinder 42, the No. 2 connecting rod 44 is hinged to the No. 1 connecting rod 43, the output end of the No. 1 electric cylinder 42 is fixedly connected to the connecting block 45, the connecting block 45 is hinged to the No. 3 connecting rod 46, the No. 2 connecting rod 44 is hinged to the No. 3 connecting rod 46, the No. 2 connecting rod 44 is hinged to the No. 2 clamping plate 47, the No. 3 connecting rod 46 is hinged to the No. 2 clamping plate 47, and the No. 2 clamping plate 47 abuts against the outer ring of the bearing 2 to be tested.

[0040] The second machine base 48 provides a stable support foundation for the entire second bearing mechanism 4. The output end of the first electric cylinder 42 is fixedly connected to the connecting block 45, so that the first electric cylinder 42 pushes the connecting block 45 to move. The first connecting rod 43 is fixedly connected to the first electric cylinder 42, the second connecting rod 44 is hinged to the first connecting rod 43, the second clamping plate 47 is hinged to the second connecting rod 44 and the third connecting rod 46 respectively, and the connecting block 45 is hinged to the third connecting rod 46, so that the second connecting rod 44 moves along the connecting rod. The hinge connected to the connecting block 45 rotates, so that the two No. 2 clamps 47 can move closer and further apart, and the two No. 2 clamps 47 move closer to each other along the axis of the No. 1 electric cylinder 42 until they abut against the outer ring of the bearing 2 to be tested, thereby fixing the outer ring of the bearing 2 to be tested. The No. 1 electric cylinder 42 is driven to rotate by the No. 2 motor 41, and under the action of the connecting rod, the No. 2 clamp 47 is stationary relative to the No. 1 electric cylinder 42, so that the No. 2 clamp 47 rotates with the No. 1 electric cylinder 42, thereby driving the outer ring of the bearing 2 to be tested to rotate.

[0041] like Figure 5-Figure 7 As shown, the No. 1 adjustment mechanism 5 includes a shell 51, a No. 3 motor 52, a No. 1 transmission shaft 53, a No. 1 gear 54, a No. 2 gear 55, a No. 2 transmission shaft 56 and a rack 57. The shell 51 is fixedly connected to the bidirectional electric cylinder 33. The shell 51 is provided with a mounting groove 511. The No. 3 motor 52 is placed in the mounting groove 511. The output end of the No. 3 motor 52 is fixedly connected to the No. 1 transmission shaft 53. The No. 1 gear 54 is fixedly connected to the No. 1 transmission shaft 53. The No. 2 gear 55 is meshed with the No. 1 gear 54. The No. 2 transmission shaft 56 is fixedly connected to the No. 2 gear 55. The No. 2 transmission shaft 56 is rotatably connected to the shell 51. The No. 1 transmission shaft 53 is rotatably connected to the shell 51. The rack 57 is meshed with the No. 2 gear 55. The shell 51 is provided with a No. 1 sliding groove 512. The rack 57 is slidably connected to the No. 1 sliding groove 512. The rack 57 is fixedly connected to the detection mechanism 7.

[0042] The No. 1 adjustment mechanism 5 is fixed on the two-way electric cylinder 33 through the shell 51. The shell 51 is provided with a mounting groove 511, so that the No. 1 transmission shaft 53 and the No. 2 transmission shaft 56 can rotate stably. The No. 3 motor 52 drives the No. 1 transmission shaft 53 to rotate, so that the No. 1 transmission shaft 53 drives the No. 1 gear 54 to rotate. The No. 1 gear 54 and the No. 2 gear 55 are meshed, so that the No. 2 gear 55 and the No. 2 transmission shaft 56 are rotated, so that the rack 57 meshing with the No. 2 gear 55 moves horizontally in the rotation direction. The rack 57 and the detection mechanism 7 are fixedly connected, so that the detection mechanism 7 and the inner ring of the bearing 2 to be tested are in contact with each other, ensuring the consistency of the contact position and force between the detection mechanism 7 and the inner ring of the bearing 2 to be tested, thereby improving the accuracy and reliability of the detection and reducing the error caused by position deviation or uneven force.

[0043] like Figure 2 and Figure 6 As shown, the No. 2 adjustment mechanism 6 includes a No. 4 motor 61, a screw rod 62, a nut seat 63, a No. 2 electric cylinder 64, a No. 1 fixing plate 65 and a No. 2 fixing plate 66, the No. 4 motor 61 is fixedly connected to the base 1, the output end of the No. 4 motor 61 is fixedly connected to the screw rod 62, the nut seat 63 and the screw rod 62 are threadedly connected, the screw rod 62 and the No. 1 machine base 35 are rotatably connected, the No. 2 electric cylinder 64 and the nut seat 63 are fixedly connected, the No. 2 electric cylinder 64 and the No. 2 fixing plate 66 are fixedly connected, the No. 1 fixing plate 65 and the nut seat 63 are fixedly connected, the No. 1 fixing plate 65 and the two side detection mechanisms 7 are fixedly connected, the two detection mechanisms 7 are distributed in the vertical direction, and the No. 2 fixing plate 66 and the three outer ring detection mechanisms 7 are fixedly connected.

[0044] The screw rod 62 is driven to rotate by the No. 4 motor 61, and the screw rod 62 and the No. 1 machine base 35 are rotatably connected to make the screw rod 62 rotate along the axis of the output end of the No. 4 motor 61, so that the nut seat 63 can move stably with the screw rod 62, ensuring that the No. 1 fixing plate 65 moves to the specified position with the nut seat 63, and the two detection mechanisms 7 are distributed in the vertical direction, so that the contact force between the detection mechanism 7 and the inner ring side and the outer ring side of the bearing 2 to be tested remains consistent, and the No. 2 electric cylinder 64 is used to push the No. 2 fixing plate 66 connected thereto to move upward, so that the detection mechanism 7 on the No. 2 fixing plate 66 is in contact with the outer ring of the bearing 2 to be tested, ensuring the consistency of the contact position and force between the detection mechanism 7 and the outer ring of the bearing 2 to be tested, thereby improving the accuracy and reliability of detection and reducing errors caused by position deviation or uneven force.

[0045] like Figure 5 and Figure 7As shown, each detection mechanism 7 includes a vibration sensor 71, a sliding cylinder 72 and a spring 73. The sliding cylinder 72 is provided with a No. 2 sliding groove 721. The vibration sensor 71 and the No. 2 sliding groove 721 are slidingly connected. The spring 73 is placed in the No. 2 sliding groove 721. The vibration sensor 71 and the spring 73 are fixedly connected. The three outer ring sliding cylinders 72 are fixedly connected to the No. 1 fixed plate 65. The two side sliding cylinders 72 are fixedly connected to the No. 2 fixed plate 66. The two inner ring sliding cylinders 72 are fixedly connected to the rack 57. The vibration sensor 71 abuts against the bearing 2 to be tested.

[0046] Through the sliding cylinder 72, the vibration sensor 71 moves with the rack 57, the No. 1 fixing plate 65 and the No. 2 fixing plate 66, so that the vibration sensor 71 is respectively in contact with the inner and outer rings and the side surfaces of the bearing 2 to be measured. The sliding cylinder 72 is provided with a No. 2 sliding groove 721, so that the vibration sensor 71 can slide freely in the sliding groove of the sliding cylinder 72. Through the spring 73 placed in the No. 2 sliding groove 721, the vibration sensor 71 is always kept in contact with the bearing 2 to be measured, avoiding the vibration of the bearing 2 to be measured and the position change resulting in the disconnection of the vibration sensor 71 and the bearing 2 to be measured, thereby ensuring the continuous collection of vibration signals and the accuracy of the measurement results.

[0047] like Figure 8 As shown, the rotating shaft 32 and the two No. 1 clamps 34 are slidably connected, the No. 1 clamps 34 are provided with a positioning plate 341, the positioning plate 341 abuts against the side of the bearing 2 to be tested, the No. 1 clamps 34 are provided with a limit block 342, the rotating shaft 32 is provided with a limit groove 321, and the limit block 342 and the limit groove 321 are slidably connected.

[0048] A positioning plate 341 is provided on the No. 1 clamping plate 34, so that the positioning plate 341 and the side of the bearing 2 to be tested are abutted, so that the bearing 2 to be tested is installed in a predetermined position of the detection device, reducing the error caused by the deviation of the detection position of the bearing 2 to be tested, ensuring the accuracy of the detection, and limiting the axial movement of the No. 1 clamping plate 34 through the sliding connection of the limit block 342 and the limit groove 321, so as to prevent the No. 1 clamping plate 34 from generating axial movement due to centrifugal force when rotating, causing the bearing 2 to move axially with it, thereby reducing the error of axial vibration detection.

[0049] Working principle: The bearing 2 to be tested is installed at a predetermined position through the positioning plate 341, and the outer side of the No. 1 clamping plate 34 is driven to closely abut the inner ring of the bearing 2 to be tested through the bidirectional electric cylinder 33, thereby clamping the inner ring of the bearing 2 to be tested, and the No. 1 electric cylinder 42 is used to push the connecting block 45 to move. Under the joint action of the No. 1 connecting rod 43, the No. 2 connecting rod 44 and the No. 3 connecting rod 46, the No. 2 clamping plate 47 moves horizontally toward the center of the bearing 2 to be tested, and clamps the outer ring of the bearing 2 to be tested, and the No. 4 motor 61 drives the screw rod 62 to rotate, so that the nut seat 63 moves on the screw rod 62, and the No. 1 fixing plate 65 moves with the nut seat 63, so that the two vibration sensors 71 thereon are respectively abutted against the inner ring side and the outer ring side of the bearing 2 to be tested, and the No. 2 electric cylinder 64 is used to push the vibration sensor 71 to abut against the outer ring of the bearing 2 to be tested, and the No. 1 transmission shaft is driven by the No. 3 motor 52. 53 drives the No. 1 gear 54 to rotate, so that the No. 2 gear 55 meshing with the No. 1 gear 54 rotates, thereby moving the rack 57 meshing with the No. 2 gear 55, so that the vibration sensor 71 and the inner ring of the bearing 2 to be tested are abutted, and the vibration sensor 71 slides into the No. 2 sliding groove 721 of the sliding cylinder 72 to compress the spring 73 to prevent the bearing 2 to be tested from vibrating and changing its position, resulting in the disconnection of the vibration sensor 71 and the bearing 2 to be tested. Through the No. 1 motor 31, the No. 1 clamping plate 34 drives the inner ring of the bearing 2 to be tested to rotate, and detects the vibration of the inner ring of the bearing 2 to be tested rotating while the outer ring is fixed. Through the No. 2 motor 41, the No. 2 clamping plate 47 drives the outer ring of the bearing 2 to be tested to rotate, and detects the vibration of the outer ring of the bearing 2 to be tested rotating while the inner ring is fixed. The No. 1 motor 31 and the No. 2 motor 41 rotate together to detect the vibration of the inner and outer rings of the bearing 2 to be tested rotating together.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wind power generation bearing vibration abnormality detection device, wherein a bearing to be tested (2) is installed on the detection device, characterized in that: The detection device comprises a base (1), a No. 1 bearing mechanism (3), a No. 2 bearing mechanism (4), a No. 1 adjustment mechanism (5), a No. 2 adjustment mechanism (6) and a detection mechanism (7); the base (1) and the No. 1 bearing mechanism (3) are fixedly connected; the No. 1 bearing mechanism (3) and the inner ring of the bearing to be tested (2) are in contact; the No. 2 bearing mechanism (4) and the base (1) are fixedly connected; the No. 2 bearing mechanism (4) and the outer ring of the bearing to be tested (2) are in contact; the No. 1 bearing mechanism (3) and the No. 1 adjustment mechanism (5) are fixedly connected. The second adjustment mechanism (6) is fixedly connected to the base (1), seven detection mechanisms (7) are provided, two of the detection mechanisms (7) are in contact with the inner rings of the bearing (2) to be tested, the first adjustment mechanism (5) is fixedly connected to the two inner ring detection mechanisms (7), three of the detection mechanisms (7) are in contact with the outer rings of the bearing (2) to be tested, two of the detection mechanisms (7) are in contact with the side surfaces of the bearing (2) to be tested, and the second adjustment mechanism (6) is fixedly connected to the three outer rings and the two side detection mechanisms (7).

2. A wind power generation bearing vibration abnormality detection device according to claim 1, characterized in that: The No. 1 bearing mechanism (3) comprises a No. 1 motor (31), a rotating shaft (32), a bidirectional electric cylinder (33), a No. 1 clamping plate (34) and a No. 1 machine base (35); the No. 1 motor (31) and the No. 1 machine base (35) are fixedly connected; the No. 1 machine base (35) and the base (1) are fixedly connected; the output end of the No. 1 motor (31) and the rotating shaft (32) are fixedly connected; the rotating shaft (32) and the bidirectional electric cylinder (33) are fixedly connected; two No. 1 clamping plates (34) are provided; the output end of the bidirectional electric cylinder (33) is fixedly connected to the two No. 1 clamping plates (34) respectively; and the bidirectional electric cylinder (33) and the No. 1 adjustment mechanism (5) are fixedly connected.

3. A wind power generation bearing vibration abnormality detection device according to claim 2, characterized in that: The No. 2 bearing mechanism (4) comprises a No. 2 motor (41), a No. 1 electric cylinder (42), a No. 1 connecting rod (43), a No. 2 connecting rod (44), a connecting block (45), a No. 3 connecting rod (46), a No. 2 clamping plate (47) and a No. 2 machine base (48); the No. 2 motor (41) and the No. 2 machine base (48) are fixedly connected; the No. 2 machine base (48) and the base (1) are fixedly connected; the output end of the No. 2 motor (41) and the No. 1 electric cylinder (42) are fixedly connected; the No. 1 connecting rod (43) and the No. 1 electric cylinder (42) are fixedly connected. The second connecting rod (44) and the first connecting rod (43) are fixedly connected, the output end of the first electric cylinder (42) and the connecting block (45) are fixedly connected, the connecting block (45) and the third connecting rod (46) are hingedly connected, the second connecting rod (44) and the third connecting rod (46) are hingedly connected, the second connecting rod (44) and the second clamping plate (47) are hingedly connected, the third connecting rod (46) and the second clamping plate (47) are hingedly connected, and the second clamping plate (47) is abutted against the outer ring of the bearing (2) to be tested.

4. A wind power bearing vibration abnormality detection device according to claim 3, characterized in that: The No. 1 adjustment mechanism (5) comprises a housing (51), a No. 3 motor (52), a No. 1 transmission shaft (53), a No. 1 gear (54), a No. 2 gear (55), a No. 2 transmission shaft (56) and a rack (57); the housing (51) is fixedly connected to the bidirectional electric cylinder (33); the housing (51) is provided with a mounting groove (511); the No. 3 motor (52) is placed in the mounting groove (511); the output end of the No. 3 motor (52) is fixedly connected to the No. 1 transmission shaft (53); the No. 1 gear (54) and the No. 1 transmission shaft (53) are fixedly connected. ) is fixedly connected, the second gear (55) is meshed with the first gear (54), the second transmission shaft (56) is fixedly connected with the second gear (55), the second transmission shaft (56) is rotationally connected with the housing (51), the first transmission shaft (53) is rotationally connected with the housing (51), the rack (57) is meshed with the second gear (55), the housing (51) is provided with a first sliding groove (512), the rack (57) is slidably connected with the first sliding groove (512), and the rack (57) is fixedly connected with the detection mechanism (7).

5. A wind power generation bearing vibration abnormality detection device according to claim 4, characterized in that: The No. 2 adjustment mechanism (6) comprises a No. 4 motor (61), a screw rod (62), a nut seat (63), a No. 2 electric cylinder (64), a No. 1 fixing plate (65) and a No. 2 fixing plate (66); the No. 4 motor (61) is fixedly connected to the base (1); the output end of the No. 4 motor (61) is fixedly connected to the screw rod (62); the nut seat (63) and the screw rod (62) are threadedly connected; the screw rod (62) and the No. 1 machine base (35) are rotatably connected; the No. 2 electric cylinder (64) and the nut seat (63) are fixedly connected; the No. 2 electric cylinder (64) and the No. 2 fixing plate (66) are fixedly connected; the No. 1 fixing plate (65) and the nut seat (63) are fixedly connected; the No. 1 fixing plate (65) and the two side detection mechanisms (7) are fixedly connected; the two detection mechanisms (7) are distributed in the vertical direction; and the No. 2 fixing plate (66) and the three outer ring detection mechanisms (7) are fixedly connected.

6. A wind power generation bearing vibration abnormality detection device according to claim 5, characterized in that: Each of the detection mechanisms (7) comprises a vibration sensor (71), a sliding cylinder (72) and a spring (73); the sliding cylinder (72) is provided with a No. 2 sliding groove (721); the vibration sensor (71) and the No. 2 sliding groove (721) are slidably connected; the spring (73) is placed in the No. 2 sliding groove (721); the vibration sensor (71) and the spring (73) are fixedly connected; the sliding cylinders (72) of the three outer rings are fixedly connected to the No. 1 fixed plate (65); the sliding cylinders (72) of the two side surfaces are fixedly connected to the No. 2 fixed plate (66); the sliding cylinders (72) of the two inner rings are fixedly connected to the rack (57); and the vibration sensor (71) is in contact with the bearing (2) to be tested.

7. The wind power generation bearing vibration abnormality detection device according to claim 6, characterized in that: The rotating shaft (32) and the two No. 1 clamping plates (34) are slidably connected, the No. 1 clamping plate (34) is provided with a positioning plate (341), the positioning plate (341) is in contact with the side of the bearing (2) to be tested, the No. 1 clamping plate (34) is provided with a limiting block (342), the rotating shaft (32) is provided with a limiting groove (321), and the limiting block (342) and the limiting groove (321) are slidably connected.

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