Dynamic balance experiment tool for centrifugal pump impeller
By designing an automated centrifugal pump impeller dynamic balancing test fixture, the impeller is automatically fixed and rotated using an electric wrench and a telescopic cylinder, which solves the problem of slow manual fixing in the existing technology, improves detection efficiency and saves manpower.
Patent Information
- Application Number
- CN202423130566.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-18
Smart Images
Figure CN223376837U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of centrifugal pump impeller balancing experiments, in particular to a centrifugal pump impeller dynamic balancing experiment tool. Background Art
[0002] The impeller of a centrifugal pump is usually formed by casting. The use of casting technology will inevitably produce certain surface defects on the impeller surface. It may also cause the impeller to be unbalanced during the subsequent rotation process, affecting the normal operation of the pump. Therefore, after the impeller of the pump is processed, it is necessary to perform a balancing test on the impeller. However, the existing device has a complex structure and requires manual fixation of the impeller, so the fixing speed is slow, which greatly affects the speed of detection and requires a lot of manpower. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a centrifugal pump impeller dynamic balancing test tooling, which has a simple structure, is easy to operate, and is light in weight. The impeller to be tested can be quickly fixed, which increases the speed of detection, greatly saves manpower, and can effectively solve the problems in the background technology.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a centrifugal pump impeller dynamic balancing test tool, comprising a test bench, a driving support is provided on one side of the upper surface of the test bench, a detection core shaft is fixed on the driving support, and the detection core shaft is horizontally arranged, a movable support is provided on the other side of the upper surface of the test bench, a horizontal driving member is provided on the upper surface of the test bench for driving the movable support to move, an electric wrench is provided on the upper surface of the movable support, and the rotation axis of the electric wrench is located on the same straight line as the rotation axis of the detection core shaft.
[0005] Furthermore, the driving support includes a vertical support fixed on the surface of the experimental table, a rotatably connected chuck is provided at the upper end of one side of the vertical support, and a detection motor is provided on the other side of the vertical support to drive the chuck to rotate. The rotation of the detection motor can drive the chuck to rotate, and the rotation of the chuck can drive the detection core shaft to rotate, and the rotation of the detection core shaft can drive the impeller to rotate. When the impeller rotates, the rotating impeller is detected by an external sensor detection component to determine the balance of the impeller.
[0006] Furthermore, the movable support includes two sliding rails fixed on the upper surface of the laboratory table, and the two sliding rails are provided with sliding seats in sliding connection.
[0007] Furthermore, the horizontal driving component includes a cylinder support fixed at one end of the laboratory table, and a telescopic cylinder is fixed on the cylinder support to drive the sliding seat to slide along the sliding track. The telescopic cylinder can drive the sliding seat to slide along the sliding track by extending and retracting the telescopic cylinder, and the sliding seat can drive the electric wrench to move, and the electric wrench can be used to move the nut to the thread on the detection core shaft.
[0008] Furthermore, the electric wrench includes a wrench support fixed on the upper surface of the sliding seat, a drive motor is fixed to the upper end of the wrench support, and a wrench sleeve is fixed to the output end of the drive motor. The rotation of the drive motor can drive the wrench sleeve to rotate, and the wrench sleeve can drive the fixing nut to be fixed to the detection core shaft, thereby fixing the impeller to the detection core shaft, or removing the fixing nut from the detection core shaft.
[0009] Furthermore, the detection core shaft includes a clamping handle, and an intermediate fixed shaft that is plugged into the center hole of the impeller is fixed at the center of one end of the clamping handle. The cross-section of the intermediate fixed shaft is a non-circular structure, and a threaded column is provided at the center of one end of the intermediate fixed shaft. The clamping handle can be used to conveniently drive the support to clamp, pass through the center of the impeller, and be inserted into the outside of the intermediate fixed shaft. Finally, it is connected to the threaded column through a nut, and the impeller is fixed to the outside of the intermediate fixed shaft by the nut.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the support clamping can be conveniently driven by the clamping handle, and the center of the impeller is passed through the outer side of the middle fixed shaft, and finally connected to the threaded column through the nut. The sliding seat can be driven to slide along the sliding track by the telescopic cylinder, and the electric wrench can be driven to move by the sliding seat, and the nut is moved to the thread on the detection core shaft by the electric wrench, and the impeller is fixed to the outer side of the middle fixed shaft by the nut. The rotation of the detection motor can drive the chuck to rotate, and the rotation of the chuck can drive the detection core shaft to rotate, and the rotation of the detection core shaft can drive the impeller to rotate. When the impeller rotates, the rotating impeller is detected by the external sensor detection component to judge the balance of the impeller. The centrifugal pump impeller dynamic balancing test tooling has a simple structure, is easy to operate, and is light in weight. It can quickly fix the impeller to be detected, increases the speed of detection, and greatly saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure of the utility model;
[0012] Figure 2 This is a side structural diagram of the utility model;
[0013] Figure 3 This is a schematic diagram of the detection mandrel structure of the utility model;
[0014] Figure 4This is a left-side structural diagram of the detection mandrel of the utility model;
[0015] Figure 5 This is a schematic diagram of the structure in which the impeller of the utility model is fixed on the outside of the detection core shaft.
[0016] In the figure: 1 experimental table, 2 movable support, 21 sliding rail, 22 sliding seat, 3 horizontal driving part, 31 cylinder support, 32 telescopic cylinder, 4 electric wrench, 41 wrench support, 42 driving motor, 43 wrench sleeve, 5 detection core shaft, 51 threaded column, 52 intermediate fixed shaft, 53 clamping handle, 6 driving support, 61 detection motor, 62 chuck, 63 vertical support. DETAILED DESCRIPTION
[0017] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0018] See also Figure 1-5The utility model provides a technical solution: a centrifugal pump impeller dynamic balancing test fixture, including a test bench 1, a driving support 6 is provided on one side of the upper surface of the test bench 1, a detection core shaft 5 is fixed on the driving support 6, and the detection core shaft 5 is arranged horizontally. A movable support 2 is provided on the other side of the upper surface of the test bench 1, and a horizontal driving member 3 is provided on the upper surface of the test bench 1 to drive the movable support 2 to move. An electric wrench 4 is provided on the upper surface of the movable support 2, and the rotation axis of the electric wrench 4 and the rotation axis of the detection core shaft 5 are located on the same straight line. The driving support 6 includes a vertical support 63 fixed on the upper surface of the test bench 1, and a chuck 62 with a rotation connection is provided on the upper end of one side of the vertical support 63. A detection motor 61 is provided on the other side of the vertical support 63 for driving the chuck 62 to rotate. The rotation of the detection motor 61 can drive the chuck 62 to rotate, and the rotation of the chuck 62 can drive the detection core shaft 5 to rotate. The rotation of the detection core shaft 5 can drive the impeller to rotate. When the impeller rotates, the rotating impeller is detected by an external sensor detection component to judge the balance of the impeller. The mobile support 2 includes two sliding rails 21 fixed to the upper surface of the experimental table 1. The two sliding rails 21 are provided with a sliding seat 22 in sliding connection. The horizontal driving member 3 includes a cylinder support 31 fixed at one end of the experimental table 1. The cylinder support 31 is fixed with a sliding seat 22 that drives the sliding seat 22 along the sliding rail 21. The sliding telescopic cylinder 32 can drive the sliding seat 22 to slide along the sliding track 21 through the telescopic cylinder 32, and the sliding seat 22 can drive the electric wrench 4 to move, and the nut is moved to the thread on the detection core shaft 5 through the electric wrench 4. The electric wrench 4 includes a wrench support 41 fixed to the upper surface of the sliding seat 22, and the upper end of the wrench support 41 is fixed with a driving motor 42, and the output end of the driving motor 42 is fixed with a wrench sleeve 43. The rotation of the driving motor 42 can drive the wrench sleeve 43 to rotate, and the fixing nut can be driven to be fixed to the detection core shaft 5 through the wrench sleeve 43, thereby fixing the impeller to the detection core shaft 5, or moving the fixing nut from the detection core shaft 5 to the detection core shaft 5. The testing core shaft 5 is disassembled, and the testing core shaft 5 includes a clamping handle 53. An intermediate fixed shaft 52 that is plugged into the center hole of the impeller is fixed at the center of one end of the clamping handle 53. The cross-section of the intermediate fixed shaft 52 is a non-circular structure. A threaded column 51 is provided at the center of one end of the intermediate fixed shaft 52. The clamping handle 53 can be used to conveniently drive the support 6 to clamp, pass through the center of the impeller on the outside of the intermediate fixed shaft 52, and finally be connected to the threaded column 51 through a nut. The impeller is fixed to the outside of the intermediate fixed shaft 52 by the nut. The centrifugal pump impeller dynamic balancing test fixture has a simple structure, is easy to operate, and is light in weight. It can quickly fix the impeller to be tested, increases the speed of detection, and greatly saves manpower.
[0019] During use: the clamping handle 53 can be used to conveniently drive the support 6 to clamp, pass through the center of the impeller to the outside of the middle fixed shaft 52, and finally connect with the threaded column 51 through the nut. The telescopic cylinder 32 can be extended and retracted to drive the sliding seat 22 to slide along the sliding track 21, and the sliding seat 22 can drive the electric wrench 4 to move. The nut is moved to the thread on the detection core shaft 5 by the electric wrench 4, and the impeller is fixed to the outside of the middle fixed shaft 52 by the nut. The rotation of the detection motor 61 can drive the chuck 62 to rotate, and the rotation of the chuck 62 can drive the detection core shaft 5 to rotate. The rotation of the detection core shaft 5 can drive the impeller to rotate. When the impeller rotates, the rotating impeller is detected by the external sensor detection component to determine the balance of the impeller.
[0020] 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 these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A centrifugal pump impeller dynamic balancing test tool, comprising a test bench (1), characterized in that: A driving support (6) is provided on one side of the upper surface of the experimental table (1), a detection core shaft (5) is fixed on the driving support (6), and the detection core shaft (5) is arranged horizontally. A movable support (2) is provided on the other side of the upper surface of the experimental table (1), and a horizontal driving member (3) for driving the movable support (2) is provided on the upper surface of the experimental table (1). An electric wrench (4) is provided on the upper surface of the movable support (2), and the rotation axis of the electric wrench (4) and the rotation axis of the detection core shaft (5) are located on the same straight line.
2. A centrifugal pump impeller dynamic balancing test fixture according to claim 1, characterized in that: The driving support (6) includes a vertical support (63) fixed to the upper surface of the experimental table (1), a chuck (62) connected in rotation is provided at the upper end of one side of the vertical support (63), and a detection motor (61) for driving the chuck (62) to rotate is provided on the other side of the vertical support (63).
3. The centrifugal pump impeller dynamic balancing test fixture according to claim 1, characterized in that: The movable support (2) comprises two sliding rails (21) fixed on the upper surface of the experimental table (1), and a sliding seat (22) is provided on the two sliding rails (21) in sliding connection.
4. A centrifugal pump impeller dynamic balancing test fixture according to claim 3, characterized in that: The horizontal driving member (3) comprises a cylinder support (31) fixed to one end of the experimental table (1), and a telescopic cylinder (32) is fixed on the cylinder support (31) for driving the sliding seat (22) to slide along the sliding track (21).
5. The centrifugal pump impeller dynamic balancing test fixture according to claim 3, characterized in that: The electric wrench (4) comprises a wrench support (41) fixed on the upper surface of the sliding seat (22), a driving motor (42) is fixed to the upper end of the wrench support (41), and a wrench sleeve (43) is fixed to the output end of the driving motor (42).
6. The centrifugal pump impeller dynamic balancing test fixture according to claim 1, characterized in that: The detection core shaft (5) includes a clamping handle (53), and an intermediate fixed shaft (52) plugged into the central hole of the impeller is fixed at the center of one end of the clamping handle (53). The cross section of the intermediate fixed shaft (52) is a non-circular structure, and a threaded column (51) is provided at the center of one end of the intermediate fixed shaft (52).