Dynamic balance testing device for detecting turbine impeller

Abstract

The utility model discloses a dynamic balance testing device for detecting a turbine impeller, which comprises a working table, a moving assembly is arranged in the working table, a moving plate is fixedly mounted at the output end of the moving assembly, a lifting assembly is arranged on the top surface of the moving plate, a lifting plate is fixedly mounted at the output end of the lifting assembly, and the lifting plate is fixedly mounted on the top surface of the moving plate. Supporting rolling wheels are arranged on the top face of the lifting plate, through the arrangement of the limiting assembly, the mounting frame moves downwards, the limiting rolling wheels are driven to move downwards, the bottom faces of the limiting rolling wheels make contact with the impeller shaft, through the arrangement of the lifting assembly, the lifting plate is driven to move upwards, and the height of the impeller shaft and the turbine impeller can be adjusted. The impeller shaft and the coupler of the dynamic balancing machine main machine are on the same axis, the movable plate is driven to move through the arrangement of the movable assembly, the limited impeller shaft can be driven to move, the distance between the impeller shaft and the coupler of the dynamic balancing machine main machine is adjusted, and the impeller shaft and the coupler of the dynamic balancing machine main machine are conveniently connected.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine impellers, in particular to a dynamic balance testing device for detecting turbine impellers. Background Art

[0002] A turbine is a machine that converts the energy contained in a fluid medium into mechanical energy. Not only compressors, but also steam turbines, turbines, flue gas turbines, and expanders can be called turbines. The impeller is the rotating part of the fan. When it rotates around its axis, if its mass distribution relative to the axis is uneven, unbalanced centrifugal force will be generated during rotation. This unbalanced centrifugal force will cause vibration on the bearing, thereby generating noise and accelerating bearing wear, which will seriously affect the performance and life of the product. Therefore, after the impeller is processed, it needs to be dynamically balanced, that is, to detect the size and position of its rotational imbalance, and a dynamic balancing machine will be used.

[0003] The position of the support seat of the existing balancing machine relative to the test host is mostly fixed, and it can only be used for turbine impellers of certain specific specifications. When performing a balancing test, the turbine impeller needs to be accurately hoisted and placed on the support seat to ensure that the rotating shaft of the turbine impeller can be connected to the coupling of the test host, which increases the difficulty of the operation. Therefore, a dynamic balancing test device for detecting turbine impellers is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dynamic balance test device for detecting a turbine impeller, which solves the problems in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dynamic balancing test device for detecting a turbine impeller comprises a workbench, wherein a moving component is arranged inside the workbench, a moving plate is fixedly mounted on the output end of the moving component, a lifting component is arranged on the top surface of the moving plate, a lifting plate is fixedly mounted on the output end of the lifting component, a supporting roller is arranged on the top surface of the lifting plate, a mounting plate is fixedly mounted on the top surface of the lifting plate, two groups of mounting plates are arranged, a movable frame is hingedly mounted on the top surface of one group of mounting plates, and a fixed component is arranged inside the other group of mounting plates, a limiting component is arranged on the surface of the movable frame, an impeller shaft is arranged on the top surface of the supporting roller, a turbine impeller is fixedly mounted on the surface of the impeller shaft, and a dynamic balancing machine host is fixedly mounted on the top surface of the workbench.

[0007] Preferably, the moving assembly includes a driving motor fixedly mounted on the right side of the workbench, a screw rod is fixedly mounted on the output end of the driving motor, and a threaded block is threadedly mounted on the surface of the screw rod.

[0008] Preferably, the lifting assembly includes a dual-axis motor fixedly mounted on the top surface of the moving plate, a rotating shaft is fixedly mounted on the output end of the dual-axis motor, a first bevel gear is fixedly mounted on one end of the rotating shaft, a fixed rod is fixedly mounted on the top surface of the moving plate, a connecting rod is fixedly mounted on the surface of the fixed rod, a threaded rod is rotatably mounted inside the connecting rod, a second bevel gear is fixedly mounted on the bottom end of the threaded rod, an internally threaded cylinder is threadedly mounted on the surface of the threaded rod, and the first bevel gear is meshed with the second bevel gear.

[0009] Preferably, a lifting rod is fixedly mounted on the bottom surface of the lifting plate, an inner cavity is provided inside the fixed rod, and the lifting rod is slidably connected to the inner cavity.

[0010] Preferably, the fixing assembly includes a spring groove opened inside the mounting plate, a spring is fixedly installed inside the spring groove, a movable block is fixedly installed at one end of the spring, a movable rod is fixedly installed on the surface of the movable block, a connecting plate is fixedly installed at one end of the movable rod, and an insertion rod is fixedly installed on the surface of the connecting plate.

[0011] Preferably, a plug hole is provided inside the movable frame, and the plug rod is arranged corresponding to the plug hole.

[0012] Preferably, the limit assembly includes a hand-tightened screw threadedly installed inside the movable frame, the bottom end of the hand-tightened screw is rotatably installed with a mounting frame, a limit roller is rotatably installed on the surface of the mounting frame, a limit rod is fixedly installed on the top surface of the mounting frame, and the limit rod is slidably connected to the movable frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the dynamic balancing test device for detecting the turbine impeller, through the setting of the limit component, enables the mounting frame to move downward, thereby driving the limit roller to move downward, so that the bottom surface of the limit roller contacts the impeller shaft, thereby being able to limit the impeller shafts of different diameters, and through the setting of the lifting component, driving the lifting plate to move up, the height of the impeller shaft and the turbine impeller can be adjusted, so that the impeller shaft and the coupling of the dynamic balancing machine main engine are on the same axis, and through the setting of the moving component, driving the moving plate to move, the impeller shaft with the limit can be driven to move, and the distance between the impeller shaft and the coupling of the dynamic balancing machine main engine can be adjusted, so as to facilitate the connection of the impeller shaft and the coupling of the dynamic balancing machine main engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the positive measurement of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the first sectional view of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the second sectional view of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the third sectional view of the utility model.

[0018] In the figure: 1. workbench; 2. driving motor; 3. screw rod; 4. threaded block; 5. movable plate; 6. double-axis motor; 7. rotating shaft; 8. first bevel gear; 9. fixed rod; 10. connecting rod; 11. threaded rod; 12. second bevel gear; 13. internal threaded cylinder; 14. lifting plate; 15. lifting rod; 16. inner cavity; 17. supporting roller; 18. mounting plate; 19. movable frame; 20. socket; 21. spring slot; 22. spring; 23. movable block; 24. movable rod; 25. connecting plate; 26. plug rod; 27. hand screw; 28. mounting frame; 29. ​​limit roller; 30. limit rod; 31. impeller shaft; 32. turbine impeller; 33. dynamic balancing machine host. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Refer to Figure 1-4The utility model provides a technical solution, a dynamic balancing test device for detecting turbine impellers, comprising a workbench 1, a moving plate 5 is fixedly installed on the output end of the moving assembly, a lifting assembly is arranged on the top surface of the moving plate 5, a lifting plate 14 is fixedly installed on the output end of the lifting assembly, a supporting roller 17 is arranged on the top surface of the lifting plate 14, a mounting plate 18 is fixedly installed on the top surface of the lifting plate 14, two groups of mounting plates 18 are arranged, a movable frame 19 is hingedly installed on the top surface of one group of mounting plates 18, a fixing assembly is arranged inside the other group of mounting plates 18, the fixing assembly comprises a spring groove 21 opened inside the mounting plate 18, a spring 22 is fixedly installed inside the spring groove 21, one end of the spring 22 is fixedly installed A movable block 23 is installed, a movable rod 24 is fixedly installed on the surface of the movable block 23, a connecting plate 25 is fixedly installed on one end of the movable rod 24, an insertion rod 26 is fixedly installed on the surface of the connecting plate 25, a socket 20 is opened inside the movable frame 19, and the insertion rod 26 is arranged corresponding to the socket 20. Through the setting of the fixing component, under the action of the spring 22, the movable block 23 moves, thereby driving the movable rod 24 to move, so that the connecting plate 25 moves, and then the insertion rod 26 is inserted into the socket 20, so that the movable frame 19 can be fixed, the top surface of the supporting roller 17 is provided with an impeller shaft 31, the surface of the impeller shaft 31 is fixedly installed with a turbine impeller 32, and the top surface of the workbench 1 is fixedly installed with a dynamic balancing machine host 33.

[0021] Specifically, a moving component is provided inside the workbench 1, and the moving component includes a driving motor 2 fixedly installed on the right side of the workbench 1, a screw rod 3 is fixedly installed on the output end of the driving motor 2, and a threaded block 4 is threadedly installed on the surface of the screw rod 3. Through the setting of the moving component, the output end of the driving motor 2 rotates, driving the screw rod 3 to rotate, so that the threaded block 4 moves, and then drives the moving plate 5 to move, which can drive the impeller shaft 31 with a limit to move, adjust the distance between the impeller shaft 31 and the coupling of the dynamic balancing machine mainframe 33, so that the impeller shaft 31 is connected to the coupling of the dynamic balancing machine mainframe 33.

[0022] Specifically, the top surface of the movable plate 5 is provided with a lifting assembly, and the lifting assembly includes a double-axis motor 6 fixedly mounted on the top surface of the movable plate 5, a rotating shaft 7 is fixedly mounted on the output end of the double-axis motor 6, a first bevel gear 8 is fixedly mounted on one end of the rotating shaft 7, a fixed rod 9 is fixedly mounted on the top surface of the movable plate 5, a connecting rod 10 is fixedly mounted on the surface of the fixed rod 9, a threaded rod 11 is rotatably mounted inside the connecting rod 10, a second bevel gear 12 is fixedly mounted on the bottom end of the threaded rod 11, an internal threaded cylinder 13 is threadedly mounted on the surface of the threaded rod 11, the first bevel gear 8 is meshed with the second bevel gear 12, and a lifting rod is fixedly mounted on the bottom surface of the lifting plate 14 15, an inner cavity 16 is provided inside the fixed rod 9, and the lifting rod 15 is slidably connected to the inner cavity 16. Through the setting of the lifting assembly, the output end of the dual-axis motor 6 rotates, driving the rotating shaft 7 to rotate, and then driving the first bevel gear 8 to rotate, and the first bevel gear 8 is meshed with the second bevel gear 12, so that the second bevel gear 12 rotates, and then drives the threaded rod 11 to rotate, and the threaded rod 11 is threadedly connected with the internal threaded tube 13, so that the internal threaded tube 13 moves up, and then drives the lifting plate 14 to move up, so that the height of the impeller shaft 31 and the turbine impeller 32 can be adjusted, so that the impeller shaft 31 and the coupling of the dynamic balancing machine mainframe 33 are on the same axis.

[0023] Specifically, a limit assembly is provided on the surface of the movable frame 19, and the limit assembly includes a hand screw 27 threadedly installed inside the movable frame 19, a mounting frame 28 is rotatably installed on the bottom end of the hand screw 27, a limit roller 29 is rotatably installed on the surface of the mounting frame 28, a limit rod 30 is fixedly installed on the top surface of the mounting frame 28, and the limit rod 30 is slidably connected to the movable frame 19. Through the setting of the limit assembly, the hand screw 27 is rotated to make the mounting frame 28 move downward, thereby driving the limit roller 29 to move downward, so that the bottom surface of the limit roller 29 contacts the impeller shaft 31, so that the impeller shafts 31 of different diameters can be limited.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0025] When in use: place the impeller shaft 31 on the two sets of supporting rollers 17, turn to the movable frame 19, under the action of the spring 22, the movable block 23 moves, which in turn drives the movable rod 24 to move, so that the connecting plate 25 moves, and then the insertion rod 26 is inserted into the insertion hole 20, and the movable frame 19 can be fixed, and the hand screw 27 is rotated to make the mounting frame 28 move downward, thereby driving the limiting roller 29 to move downward, so that the bottom surface of the limiting roller 29 contacts the impeller shaft 31, so that the impeller shafts 31 of different diameters can be limited, and the dual-axis motor 6 is started, and the output end of the dual-axis motor 6 rotates, driving the rotating shaft 7 to rotate, and then driving the first bevel gear 8 to rotate, and the first bevel gear 8 is meshed with the second bevel gear 12, so that the second bevel gear 12 rotates, thereby driving the screw The threaded rod 11 rotates, and the threaded rod 11 is threadedly connected with the internal threaded tube 13, so that the internal threaded tube 13 moves up, and then drives the lifting plate 14 to move up, so that the height of the impeller shaft 31 and the turbine impeller 32 can be adjusted, so that the impeller shaft 31 and the coupling of the dynamic balancing machine mainframe 33 are on the same axis, and the driving motor 2 is started. The output end of the driving motor 2 rotates, and the screw rod 3 is driven to rotate, so that the threaded block 4 moves, and then the moving plate 5 is driven to move, so that the impeller shaft 31 with the limited position can be driven to move, and the distance between the impeller shaft 31 and the coupling of the dynamic balancing machine mainframe 33 is adjusted, so that the impeller shaft 31 is connected to the coupling of the dynamic balancing machine mainframe 33, and the dynamic balancing machine mainframe 33 is started, and the impeller shaft 31 and the turbine impeller 32 are driven to rotate, so that the turbine impeller 32 can be detected.

[0026] 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", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the 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 dynamic balancing test device for detecting a turbine impeller, comprising a workbench (1), characterized in that: The workbench (1) is provided with a moving component inside, a moving plate (5) is fixedly mounted on the output end of the moving component, a lifting component is provided on the top surface of the moving plate (5), a lifting plate (14) is fixedly mounted on the output end of the lifting component, a supporting roller (17) is provided on the top surface of the lifting plate (14), a mounting plate (18) is fixedly mounted on the top surface of the lifting plate (14), two groups of mounting plates (18) are provided, a movable frame (19) is hingedly mounted on the top surface of one group of mounting plates (18), and a fixed component is provided inside the other group of mounting plates (18), a limiting component is provided on the surface of the movable frame (19), an impeller shaft (31) is provided on the top surface of the supporting roller (17), a turbine impeller (32) is fixedly mounted on the surface of the impeller shaft (31), and a dynamic balancing machine mainframe (33) is fixedly mounted on the top surface of the workbench (1).

2. A dynamic balance test device for detecting a turbine impeller according to claim 1, characterized in that: The moving assembly comprises a driving motor (2) fixedly mounted on the right side of the workbench (1), a screw rod (3) fixedly mounted on the output end of the driving motor (2), and a threaded block (4) threadedly mounted on the surface of the screw rod (3).

3. A dynamic balance test device for detecting a turbine impeller according to claim 1, characterized in that: The lifting assembly comprises a double-axis motor (6) fixedly mounted on the top surface of the moving plate (5); a rotating shaft (7) is fixedly mounted on the output end of the double-axis motor (6); a first bevel gear (8) is fixedly mounted on one end of the rotating shaft (7); a fixing rod (9) is fixedly mounted on the top surface of the moving plate (5); a connecting rod (10) is fixedly mounted on the surface of the fixing rod (9); a threaded rod (11) is rotatably mounted inside the connecting rod (10); a second bevel gear (12) is fixedly mounted on the bottom end of the threaded rod (11); an internally threaded cylinder (13) is threadedly mounted on the surface of the threaded rod (11); and the first bevel gear (8) is meshed with the second bevel gear (12).

4. A dynamic balance test device for detecting a turbine impeller according to claim 3, characterized in that: A lifting rod (15) is fixedly mounted on the bottom surface of the lifting plate (14), an inner cavity (16) is provided inside the fixed rod (9), and the lifting rod (15) is slidably connected to the inner cavity (16).

5. The dynamic balance testing device for detecting a turbine impeller according to claim 1, characterized in that: The fixing assembly comprises a spring groove (21) provided inside the mounting plate (18), a spring (22) fixedly installed inside the spring groove (21), a movable block (23) fixedly installed at one end of the spring (22), a movable rod (24) fixedly installed on the surface of the movable block (23), a connecting plate (25) fixedly installed at one end of the movable rod (24), and an insertion rod (26) fixedly installed on the surface of the connecting plate (25).

6. A dynamic balance testing device for detecting a turbine impeller according to claim 5, characterized in that: The movable frame (19) is provided with an insertion hole (20) inside, and the insertion rod (26) is arranged corresponding to the insertion hole (20).

7. A dynamic balance testing device for detecting a turbine impeller according to claim 1, characterized in that: The limiting assembly comprises a hand screw (27) threadedly mounted inside the movable frame (19); a mounting frame (28) is rotatably mounted on the bottom end of the hand screw (27); a limiting roller (29) is rotatably mounted on the surface of the mounting frame (28); a limiting rod (30) is fixedly mounted on the top surface of the mounting frame (28); and the limiting rod (30) is slidably connected to the movable frame (19).

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