Variable pitch encoder test platform

Abstract

The utility model discloses a variable-pitch encoder test platform, and relates to the technical field of wind generating sets, in particular to a variable-pitch encoder test platform, which comprises a workbench and a variable-pitch encoder, and is characterized in that the workbench is provided with a bearing mechanism used for bearing the variable-pitch encoder; the bearing mechanism is provided with a limiting mechanism and is used for limiting the variable-pitch encoder, the bearing mechanism is provided with a positioning mechanism and is used for positioning the variable-pitch encoder, the limiting mechanism comprises a limiting assembly, the limiting assembly comprises the limiting mechanism and a mounting frame arranged on the bearing mechanism, and guide grooves are formed in the two sides of the interior of the mounting frame; the front end of the mounting frame is slidably provided with guide blocks through guide grooves in the two sides, and the problem that the efficiency is greatly affected when a large number of encoders are detected due to the fact that the encoder needs to be fixed to equipment through bolts when the encoder is tested and the encoder needs to be detached after the test is completed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generator sets, in particular to a variable pitch encoder testing platform. Background Art

[0002] The pitch encoder is an encoder used in wind turbines. It is the main component of the wind turbine pitch system and is used to monitor and control the pitch angle in the system. The pitch encoder test platform is a device or system used to test and verify the performance and reliability of the pitch encoder.

[0003] After checking the public (announcement) number: CN218955801U, an encoder test platform is disclosed. This technology discloses "through the horizontal device, the rotating rod rotates so that the gear meshes with the gear block, and the slider moves left and right to adjust the height of the left and right support blocks. Rotating the threaded rod makes the slider move forward and backward to adjust the height of the front and rear support blocks" and other technical solutions, which have "observing the horizontal liquid pipe to make adjustments so that the detection platform is parallel" and other technical effects;

[0004] At present, the equipment used to detect the encoder in the above scheme is a fixed platform type. The encoder is fixed to the test equipment by bolts, and the encoder shaft is driven to rotate by the motor on the test equipment, so that the encoder can be tested; however, since each encoder needs to be fixed to the equipment by bolts and needs to be removed after the test, this greatly affects the efficiency when testing more encoders. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a variable pitch encoder test platform, which can conveniently fix the variable pitch encoder to be tested horizontally and vertically, and also avoid affecting parameters due to loose fixation during testing.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a variable pitch encoder test platform, including a workbench and a variable pitch encoder, a bearing mechanism is provided on the workbench and is used to bear the variable pitch encoder, a limiting mechanism is provided on the bearing mechanism and is used to limit the variable pitch encoder, a positioning mechanism is provided on the bearing mechanism and is used to position the variable pitch encoder, and the limiting mechanism includes:

[0007] The limiting assembly comprises a mounting frame with a limiting mechanism arranged on the bearing mechanism, guide grooves are provided on both sides of the mounting frame, guide blocks are slidably installed on the front end of the mounting frame through the guide grooves on both sides, a clamping arm is fixed on the front end of the guide block, and a clamp is installed on the inner wall of the front end of the clamping arm;

[0008] A driving component is provided with a screw rod rotatably mounted between the upper and lower ends of the front of the mounting frame, a slider is threadedly mounted on the outer wall of the screw rod, guide rods are fixed at both ends of the slider, and the guide rods penetrate the guide blocks.

[0009] Preferably, the bearing mechanism includes a stand fixed on the top of the workbench, and the mounting frame is fixed at a lower middle position of the front end of the stand, a bracket is fixed at the lower front end of the stand, and a round hole is opened in the center of the bracket.

[0010] Preferably, the positioning mechanism includes a mounting plate fixed at an upper position on the front end of the frame, a cylindrical rod is rotatably installed inside the mounting plate, a threaded rod is installed on the internal thread of the cylindrical rod, a pressure plate is fixed to the bottom of the threaded rod, limiting rods are fixed on both sides of the top of the pressure plate, and the limiting rods pass through the mounting plate, a driven bevel gear is installed on the outer wall of the upper end of the cylindrical rod, a shaft rod is rotatably installed on the rear end of the mounting plate, and an active bevel gear is installed on the outer wall of the front end of the shaft rod.

[0011] Preferably, the driving bevel gear and the driven bevel gear are meshed with each other.

[0012] Preferably, a hexagonal head is fixed to the upper end of the screw rod, and a hexagonal hole is formed at the rear end of the shaft rod.

[0013] Preferably, a motor is installed inside the workbench, a magnetic powder brake is installed at the output end of the motor, and a control panel is provided at the front end of the workbench.

[0014] Beneficial Effects

[0015] The utility model provides a variable pitch encoder test platform. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] (1) The slider is driven to move by rotating the screw and cooperating with the guide rod. At the same time, the slider drives the guide block to slide along the guide groove through the guide rod. At the same time, the guide block also slides along the guide rod, so that the guide block drives the chuck through the clamping arm to limit the pitch encoder to the left and right.

[0018] (2) The active bevel gear is driven to rotate by rotating the shaft, and the active bevel gear drives the barrel rod to rotate through the driven bevel gear. The barrel rod drives the pressure plate to press down the pitch encoder through the threaded rod and the limit rod, thereby positioning the pitch encoder up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the back side of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the bearing mechanism in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the limiting mechanism in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the positioning mechanism in the utility model.

[0024] In the figure: 1. workbench; 2. carrying mechanism; 21. stand; 22. bracket; 23. round hole; 3. limiting mechanism; 31. limiting assembly; 311. mounting frame; 312. guide groove; 313. guide block; 314. clamping arm; 315. chuck; 32. driving assembly; 321. screw rod; 322. slider; 323. guide rod; 4. positioning mechanism; 41. mounting plate; 42. barrel rod; 43. threaded rod; 44. pressure plate; 45. limiting rod; 46. driven bevel gear; 47. shaft rod; 48. driving bevel gear; 5. motor; 6. magnetic powder brake; 7. control panel; 8. pitch encoder. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 The utility model provides a technical solution for a variable pitch encoder test platform: a variable pitch encoder test platform, comprising a workbench 1 and a variable pitch encoder 8, a bearing mechanism 2 is provided on the workbench 1 and is used to bear the variable pitch encoder 8, a limiting mechanism 3 is provided on the bearing mechanism 2 and is used to limit the variable pitch encoder 8, a positioning mechanism 4 is provided on the bearing mechanism 2 and is used to position the variable pitch encoder 8, and the limiting mechanism 3 comprises:

[0027] The limiting assembly 31 includes a mounting frame 311 of the limiting mechanism 3 arranged on the bearing mechanism 2, guide grooves 312 are provided on both sides of the mounting frame 311, and guide blocks 313 are slidably installed at the front end of the mounting frame 311 through the guide grooves 312 on both sides, and a clamping arm 314 is fixed at the front end of the guide block 313, and a clamping head 315 is installed on the inner wall of the front end of the clamping arm 314;

[0028] The drive assembly 32 has a screw rod 321 rotatably mounted between the upper and lower ends in front of the mounting frame 311 , a slider 322 is threadedly mounted on the outer wall of the screw rod 321 , guide rods 323 are fixed at both ends of the slider 322 , and the guide rods 323 penetrate the guide block 313 .

[0029] In this embodiment, the slider 322 is driven to move by rotating the screw rod 321 and cooperating with the guide rod 323. At the same time, the slider 322 also drives the guide block 313 to slide along the guide groove 312 through the guide rod 323. At the same time, the guide block 313 also slides along the guide rod 323, so that the guide block 313 drives the clamp 315 through the clamping arm 314 to limit the pitch encoder 8 to the left and right.

[0030] Specifically, the supporting mechanism 2 includes a stand 21 fixed on the top of the workbench 1, and the mounting frame 311 is fixed at the lower middle position of the front end of the stand 21. A bracket 22 is fixed at the lower front end of the stand 21, and a circular hole 23 is opened in the center of the bracket 22.

[0031] In this embodiment, the pitch encoder 8 is placed on the bracket 22 , and the rotating shaft core of the pitch encoder 8 is inserted into the magnetic powder brake 6 through the circular hole 23 .

[0032] Specifically, the positioning mechanism 4 includes a mounting plate 41 fixed at an upper position on the front end of the stand 21, a cylindrical rod 42 is rotatably installed inside the mounting plate 41, a threaded rod 43 is installed on the internal thread of the cylindrical rod 42, a pressure plate 44 is fixed to the bottom of the threaded rod 43, limiting rods 45 are fixed on both sides of the top of the pressure plate 44, and the limiting rods 45 penetrate the mounting plate 41, a driven bevel gear 46 is installed on the outer wall of the upper end of the cylindrical rod 42, a shaft rod 47 is rotatably installed at the rear end of the mounting plate 41, and an active bevel gear 48 is installed on the outer wall of the front end of the shaft rod 47.

[0033] In this embodiment, the active bevel gear 48 is driven to rotate by rotating the shaft 47, and the active bevel gear 48 drives the barrel rod 42 to rotate through the driven bevel gear 46. The barrel rod 42 drives the pressure plate 44 to press down the pitch encoder 8 through the threaded rod 43 and the limit rod 45, thereby positioning the pitch encoder 8 up and down.

[0034] Specifically, a hexagonal head is fixed to the upper end of the screw rod 321 , and a hexagonal hole is formed at the rear end of the shaft rod 47 .

[0035] In this embodiment, it is convenient to perform rotation adjustment by using a wrench.

[0036] Specifically, a motor 5 is installed inside the workbench 1 , a magnetic powder brake 6 is installed at the output end of the motor 5 , and a control panel 7 is provided at the front end of the workbench 1 .

[0037] In this embodiment, the rotating shaft core of the pitch encoder 8 is inserted into the magnetic powder brake 6 on the output end of the motor 5 to drive it to rotate, and the upper computer collects operating parameters to judge the quality and performance.

[0038] The working principle and use process of the utility model are as follows: first, the pitch encoder 8 is placed on the bracket 22, and the rotating shaft core of the pitch encoder 8 is inserted into the magnetic powder brake 6 through the round hole 23, and then the slider 322 is driven to move by rotating the screw rod 321 and in cooperation with the guide rod 323, and at the same time, the slider 322 also drives the guide block 313 to slide along the guide groove 312 through the guide rod 323, and at the same time, the guide block 313 also slides along the guide rod 323, so that the guide block 313 drives the clamp 31 through the clamping arm 314. 5 limits the pitch encoder 8 to the left and right; then, the active bevel gear 48 is driven to rotate by rotating the shaft 47, and the active bevel gear 48 drives the cylinder rod 42 to rotate through the driven bevel gear 46, and the cylinder rod 42 drives the pressure plate 44 to press down the pitch encoder 8 through the threaded rod 43 and the limit rod 45, thereby positioning the pitch encoder 8 up and down; finally, the magnetic powder brake 6 on the output end of the motor 5 is inserted through the rotating shaft core of the pitch encoder 8, and it is driven to rotate, and the upper computer collects the operating parameters to judge the quality and performance.

[0039] The model of the magnetic powder brake is CT225, and the model of the motor is EDSMT-2T110-020A. Both are products using existing mature technologies and will not be elaborated on in detail. All electrical components appearing in this article are connected to the external main controller and 220V AC power.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. 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. Moreover, the terms "include", "comprises" or any other variations 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 process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable pitch encoder test platform, comprising a workbench (1) and a variable pitch encoder (8), characterized in that: A bearing mechanism (2) is provided on the workbench (1) and is used to bear the variable pitch encoder (8); a limiting mechanism (3) is provided on the bearing mechanism (2) and is used to limit the variable pitch encoder (8); a positioning mechanism (4) is provided on the bearing mechanism (2) and is used to position the variable pitch encoder (8); the limiting mechanism (3) comprises: The limiting assembly (31) comprises a mounting frame (311) on which the limiting mechanism (3) is arranged on the bearing mechanism (2), guide grooves (312) are provided on both sides of the mounting frame (311), guide blocks (313) are slidably mounted on the front end of the mounting frame (311) through the guide grooves (312) on both sides, a clamping arm (314) is fixed on the front end of the guide block (313), and a clamping head (315) is mounted on the inner wall of the front end of the clamping arm (314); A driving assembly (32) is rotatably mounted between the upper and lower ends of the front of the mounting frame (311), a slider (322) is threadedly mounted on the outer wall of the screw rod (321), guide rods (323) are fixed at both ends of the slider (322), and the guide rods (323) penetrate the guide block (313).

2. A variable pitch encoder test platform according to claim 1, characterized in that: The bearing mechanism (2) comprises a stand (21) fixed on the top of the workbench (1), and the mounting frame (311) is fixed at a lower middle position of the front end of the stand (21), a bracket (22) is fixed at a lower middle position of the front end of the stand (21), and a circular hole (23) is provided in the center of the bracket (22).

3. A variable pitch encoder test platform according to claim 2, characterized in that: The positioning mechanism (4) comprises a mounting plate (41) fixed at a position slightly above the front end of the stand (21); a cylindrical rod (42) is rotatably mounted inside the mounting plate (41); a threaded rod (43) is threadedly mounted inside the cylindrical rod (42); a pressing plate (44) is fixed at the bottom of the threaded rod (43); limiting rods (45) are fixed on both sides of the top of the pressing plate (44); and the limiting rods (45) penetrate the mounting plate (41); a driven bevel gear (46) is mounted on the outer wall of the upper end of the cylindrical rod (42); a shaft rod (47) is rotatably mounted at the rear end of the mounting plate (41); and a driving bevel gear (48) is mounted on the outer wall of the front end of the shaft rod (47).

4. A variable pitch encoder test platform according to claim 3, characterized in that: The driving bevel gear (48) and the driven bevel gear (46) are meshed and driven.

5. A variable pitch encoder test platform according to claim 3, characterized in that: A hexagonal head is fixed to the upper end of the screw rod (321), and a hexagonal hole is formed at the rear end of the shaft rod (47).

6. A variable pitch encoder test platform according to claim 1, characterized in that: A motor (5) is installed inside the workbench (1), a magnetic powder brake (6) is installed at the output end of the motor (5), and a control panel (7) is provided at the front end of the workbench (1).

Images