Precise balancing machine for water pump impeller

Abstract

The utility model relates to the technical field of water pump impeller detection, in particular to a water pump impeller precision balancing machine, which comprises a base, a servo motor fixedly mounted on the upper surface of the base, a transmission shaft mounted at the front end of the servo motor in a transmission manner, and a bottom plate fixedly mounted at the front end of the base. An electric telescopic rod, a positioning seat and a positioning screw hole; the positioning seat is fixedly mounted on the transmission shaft; wherein a positioning groove is formed in the bottom of the positioning seat; wherein a hole is formed in the top of the positioning seat and a countersunk bolt is movably inserted into the hole; positioning screw holes are formed in the upper end surface of the transmission shaft; the bottom end of the countersunk bolt is installed in the positioning screw hole in a threaded mode. The electric telescopic rod is fixedly mounted at the front end of the upper surface of the base; the top of the electric telescopic rod is located under the positioning groove. The water pump impeller assembly solves the problem that when the water pump impeller assembly is installed, the positioning and installing speed of the impeller assembly is low due to rotation of the transmission assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump impeller detection, in particular to a precision balancing machine for water pump impellers. Background Technique

[0002] As a key component of a water pump, the balance state of the water pump impeller is crucial for the stability and efficiency of the entire system. In order to ensure the long-term stable operation of the water pump impeller, regular dynamic balance detection is essential. As a professional measuring tool, a dynamic balancing machine can be widely used in the balance detection of various rotating mechanical components.

[0003] After a large number of searches, the publication number CN219455388U discloses a dynamic balancing machine for water pump detection, including: a dynamic balancing machine body, and further including a box body, the dynamic balancing machine body is arranged inside the box body, and two storage grooves are arranged on the left and right outer side walls of the box body; a lifting mechanism, the lifting mechanism is arranged inside the box body, the lifting mechanism includes a moving seat and a double-headed screw arranged inside the box body, and the double-headed screw is located below the moving seat, the dynamic balancing machine body is installed on the moving seat, both ends of the double-headed screw are rotatably connected to the inner wall of the box body, and two symmetrically arranged moving plates are threadedly sleeved on the double-headed screw, and struts are rotatably connected to the upper ends of the two moving plates.

[0004] The above device solves the problem that the dynamic balancing machine for water pump detection is large in size and difficult to be portable. However, during actual use, especially when installing the impeller group on the water pump, since the driving device for driving rotation needs to be connected to the impeller group, during this operation, the impeller group needs to be fixed on the driving device. And when installing, since the transmission components of the driving device can still rotate when not under force, it is difficult to quickly position the impeller group during the installation of the impeller group. Therefore, a precision balancing machine for water pump impellers is needed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a precision balancing machine for water pump impellers, which has the advantage of improving the positioning and installation speed of the water pump impeller group, and solves the problem that the positioning and installation speed of the water pump impeller group is slow due to the rotation of the transmission components during installation.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a precision balancing machine for water pump impellers, including a base, a servo motor is fixedly installed on the upper surface of the base, a transmission shaft is installed at the front end of the servo motor in a transmission manner, a bottom plate is fixedly installed at the front end of the base, and further includes an electric telescopic rod, a positioning seat and a positioning screw hole;

[0007] The positioning seat is fixedly installed on the transmission shaft;

[0008] Among them, a positioning groove is formed at the bottom of the positioning seat;

[0009] Among them, a counterbore bolt is inserted into a hole opened at the top of the positioning seat in a movable manner;

[0010] The positioning screw hole is formed on the upper end surface of the transmission shaft;

[0011] Among them, the bottom end of the counterbore bolt is threadedly installed in the positioning screw hole;

[0012] The electric telescopic rod is fixedly installed at the front end of the upper surface of the base;

[0013] Among them, the top of the electric telescopic rod is located directly below the positioning groove.

[0014] Preferably, a connecting shaft is welded and installed at the front end of the transmission shaft. An installation screw hole is formed at the front end of the connecting shaft. An impeller body is movably sleeved on the connecting shaft, and the diameter of the connecting shaft is smaller than that of the transmission shaft. In the design, the installation screw hole at the front end of the connecting shaft enables the impeller body to be fixed at the front end of the transmission shaft. This design makes the installation of the impeller more stable and precise. The diameter of the connecting shaft is smaller than that of the transmission shaft, which can limit the installation position of the impeller body.

[0015] Preferably, a positioning bolt is threadedly installed in the installation screw hole. A non-slip thread is provided on one side of the head of the positioning bolt close to the bolt rod. The diameter of the head of the positioning bolt is larger than that of the connecting shaft, and a hexagonal groove is formed in the head of the positioning bolt. In the design, the non-slip thread design of the positioning bolt provides a better fastening effect, preventing the impeller body from sliding during high-speed rotation. The diameter of the head of the positioning bolt is larger than that of the connecting shaft, ensuring the firm installation of the impeller body. The design of the hexagonal groove facilitates the use of a wrench or other tools for quick adjustment and positioning.

[0016] Preferably, the depth of the impeller body matches the length of the connecting shaft. The hole diameter inside the impeller body matches the diameter of the connecting shaft. The outer diameter dimension of the impeller body is smaller than the inner width of the mounting frame. In the design, the dimensional matching between the impeller body and the connecting shaft ensures the precise installation and concentricity of the impeller body, which is crucial for dynamic balance testing. The outer diameter dimension of the impeller body is smaller than the inner width of the mounting frame, providing sufficient space for operation and adjustment.

[0017] Preferably, a mounting frame is fixedly installed on the upper surface of the bottom plate. An installation hole is formed in the middle of the top of the mounting frame. Protective frames are respectively fixedly installed on both sides of the bottom of the mounting frame, and a grid mesh structure design is adopted for both protective frames. In the design, the grid mesh structure design of the protective frames not only provides necessary safety protection, but also allows the operator to observe the rotation state of the impeller and serves a certain purpose of weight reduction.

[0018] Preferably, a sampling assembly is embedded in the mounting hole. The sampling assembly includes a sensor and a vibration analyzer, and a signal connector is provided on the sampling assembly. In the design, the sampling assembly includes a sensor and a vibration analyzer, which can directly collect and analyze data on the balancing machine, improving the accuracy and efficiency of the test. The design of the signal connector makes data transmission more convenient and facilitates connection with external devices or computer systems.

[0019] Preferably, an independent control switch is provided on one side of the electric telescopic rod, and the diameter of the top of the electric telescopic rod matches the inner diameter of the positioning groove. In the design, the independent control switch of the electric telescopic rod provides a convenient operation method, and the position of the telescopic rod can be quickly adjusted as needed. The precise matching of the top of the electric telescopic rod and the positioning groove ensures the stability during the positioning of the positioning seat.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] In the present utility model, an electric telescopic rod is provided and fixed at the front end of the base, and its top is designed directly below the positioning groove. This design allows the electric telescopic rod to quickly position the positioning seat, thereby preventing the transmission shaft from rotating when not under force and avoiding manual clamping and positioning, thus accelerating the positioning speed. The positioning seat is fixedly installed on the transmission shaft, with a positioning groove at its bottom and a countersunk bolt that is movably inserted at the top. This structure provides a stable platform for quickly positioning the transmission shaft. At the same time, the countersunk bolt fixes the position of the positioning seat on the transmission shaft to prevent the transmission shaft from rotating during the installation of the impeller body. Meanwhile, the positioning groove is opened at the bottom of the positioning seat, and its positional relationship with the top of the electric telescopic rod ensures that the positioning seat can be positioned by the electric telescopic rod. The countersunk bolt is movably inserted at the top of the positioning seat, and its bottom end is installed in the positioning screw hole of the transmission shaft through threads. This design allows for quick disassembly and assembly of the positioning seat, achieving the effect of improving the positioning and installation speed of the water pump impeller group. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view structural schematic diagram of the present utility model;

[0023] Figure 2 is the structural schematic diagram of the mounting frame of the present utility model;

[0024] Figure 3 is the structural schematic diagram of the base connection of the present utility model;

[0025] Figure 4 is the structural schematic diagram of the servo motor connection of the present utility model;

[0026] Figure 5 is the sectional structural schematic diagram of the positioning seat of the present utility model.

[0027] In the figure: 1, base; 2, bottom plate; 3, protective frame; 4, impeller body; 5, positioning bolt; 6, mounting frame; 7, sampling assembly; 8, servo motor; 9, mounting hole; 10, electric telescopic rod; 11, connecting shaft; 12, transmission shaft; 13, positioning seat; 14, mounting screw hole; 15, positioning screw hole; 16, countersunk head bolt; 17, positioning groove. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] As Figures 1 to 5 shown, an embodiment provided by the present invention: a precision balancing machine for a water pump impeller, including a base 1, a servo motor 8 is fixedly installed on the upper surface of the base 1, a transmission shaft 12 is drivingly installed at the front end of the servo motor 8, a bottom plate 2 is fixedly installed at the front end of the base 1, and further includes an electric telescopic rod 10, a positioning seat 13 and a positioning screw hole 15;

[0031] Specifically, by setting the electric telescopic rod 10 and fixing the electric telescopic rod 10 at the front end of the base 1, the top of which is designed directly below the positioning groove 17, this design allows the electric telescopic rod 10 to quickly locate the position of the positioning seat 13, thereby preventing the transmission shaft 12 from rotating when not under force and avoiding manual clamping and positioning, thus accelerating the positioning speed. The positioning seat 13 is fixedly installed on the transmission shaft 12, with a positioning groove 17 at the bottom and a countersunk head bolt 16 that is movably inserted at the top. This structure provides a stable platform that can quickly position the transmission shaft 12. At the same time, the countersunk head bolt 16 fixes the position of the positioning seat 13 on the transmission shaft 12 to prevent the transmission shaft 12 from rotating during the installation of the impeller body 4. At the same time, the positioning groove 17 is opened at the bottom of the positioning seat 13, and the positional relationship with the top of the electric telescopic rod 10 ensures that the positioning seat 13 can be positioned by the electric telescopic rod 10. The countersunk head bolt 16 is movably inserted at the top of the positioning seat 13, and its bottom end is installed in the positioning screw hole 15 of the transmission shaft 12 through threads. This design allows for the quick disassembly and assembly of the positioning seat 13, achieving the effect of improving the positioning and installation speed of the water pump impeller group.

[0032] Embodiment 2

[0033] For the quick installation of the impeller body, as Figure 1 、 Figure 3and Figure 4 As shown in the figure, in this embodiment, a connecting shaft 11 is welded and installed at the front end of the transmission shaft 12. An installation screw hole 14 is provided at the front end of the connecting shaft 11. An impeller body 4 is movably sleeved on the connecting shaft 11, and the diameter of the connecting shaft 11 is smaller than that of the transmission shaft 12. In the design, the installation screw hole 14 at the front end of the connecting shaft 11 enables the impeller body 4 to be fixed at the front end of the transmission shaft 12. This design makes the installation of the impeller more stable and precise. The diameter of the connecting shaft 11 is smaller than that of the transmission shaft 12, which can limit the installation position of the impeller body 4.

[0034] Furthermore, a positioning bolt 5 is installed with internal threads in the installation screw hole 14. One side of the head of the positioning bolt 5 close to the bolt rod is provided with anti-slip threads. The diameter of the head of the positioning bolt 5 is larger than that of the connecting shaft 11, and a hexagonal groove is provided in the head of the positioning bolt 5. In the design, the anti-slip thread design of the positioning bolt 5 provides a better fastening effect and prevents the impeller body 4 from sliding during high-speed rotation. The diameter of the head of the positioning bolt 5 is larger than that of the connecting shaft 11, ensuring the firm installation of the impeller body 4. The design of the hexagonal groove facilitates the use of a wrench or other tools for quick adjustment and positioning.

[0035] Furthermore, the depth of the impeller body 4 matches the length of the connecting shaft 11, the hole diameter inside the impeller body 4 matches the diameter of the connecting shaft 11, and the outer diameter dimension of the impeller body 4 is smaller than the inner width of the mounting bracket 6. In the design, the dimensional matching between the impeller body 4 and the connecting shaft 11 ensures the precise installation and concentricity of the impeller body 4, which is crucial for the dynamic balance test. The outer diameter dimension of the impeller body 4 is smaller than the inner width of the mounting bracket 6, providing sufficient space for operation and adjustment.

[0036] Embodiment Three

[0037] For the safety protection of the impeller body being detected, as Figure 1 and Figure 2 shown, in this embodiment, a mounting bracket 6 is fixedly installed on the upper surface of the bottom plate 2. An installation hole 9 is provided in the middle of the top of the mounting bracket 6. Protective brackets 3 are respectively fixedly installed on both sides of the bottom of the mounting bracket 6. The grid mesh structure design is adopted for both of the two protective brackets 3. In the design, the grid mesh structure design of the protective brackets 3 not only provides the necessary safety protection, but also allows the operator to observe the rotation state of the impeller, and plays a certain role in weight reduction.

[0038] Furthermore, a sampling component 7 is embedded and installed in the installation hole 9. The sampling component 7 includes a sensor and a vibration analyzer, and a signal connection head is provided on the sampling component 7. In the design, the sampling component 7 includes a sensor and a vibration analyzer, which can directly collect and analyze data on the balancing machine, improving the accuracy and efficiency of the test. The design of the signal connection head makes data transmission more convenient and facilitates connection with external devices or computer systems.

[0039] Furthermore, an independent control switch is provided on one side of the electric telescopic rod 10, and the diameter of the top of the electric telescopic rod 10 matches the inner diameter of the positioning groove 17. In the design, the independent control switch of the electric telescopic rod 10 provides a convenient operation method, and the position of the telescopic rod can be quickly adjusted as needed. The precise matching of the top of the electric telescopic rod 10 and the positioning groove 17 ensures the stability during the positioning of the positioning seat 13.

[0040] When the utility model is in use, the servo motor 8 is fixedly installed on the upper surface of the base 1 to ensure that the transmission shaft 12 is installed in a driving manner with the front end of the servo motor 8. The positioning seat 13 is fixedly installed on the transmission shaft 12, and there is an opening at the top of the positioning seat 13 where the countersunk head bolt 16 can be movably inserted. The electric telescopic rod 10 is fixedly installed on the front end of the upper surface of the base 1, and the top of the electric telescopic rod 10 is located directly below the positioning groove 17. The connecting shaft 11 is welded and installed at the front end of the transmission shaft 12. The mounting frame 6 is fixedly installed on the upper surface of the bottom plate 2. The sampling assembly 7 is embedded in the mounting hole 9 opened in the middle of the top of the mounting frame 6. This assembly includes a sensor and a vibration analyzer. A signal connector is provided on the sampling assembly 7 for data transmission. Protective frames 3 are respectively fixedly installed on both sides of the bottom of the mounting frame 6 and are designed with a grid mesh structure. The impeller body 4 is movably sleeved on the connecting shaft 11 to ensure that the depth of the impeller body 4 matches the length of the connecting shaft 11. The electric telescopic rod 10 is started so that the top of the electric telescopic rod 10 is inserted into the positioning groove 17, thereby preventing the transmission shaft 12 from rotating. The positioning bolt 5 is threadedly installed in the mounting screw hole 14 at the front end of the connecting shaft 11, and the positioning bolt 5 is tightened to position the impeller body 4. After the impeller body 4 is installed, the electric telescopic rod 10 is started, so that the transmission shaft 12 can rotate. At this time, the servo motor 8 is started to rotate the transmission shaft 12 and make the impeller rotate to the set speed. The vibration and displacement data of the impeller during rotation are collected by the sampling assembly 7, and the collected data is analyzed by the vibration analyzer to determine the unbalanced position and magnitude of the impeller. After confirming the balance of the impeller, the servo motor 8 is turned off and the electric telescopic rod 10 is started again to position the transmission shaft 12, and then the impeller is removed from the equipment to complete the balancing process.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A water pump impeller precision balancing machine, comprising a base (1), a servo motor (8) is fixedly mounted on the upper surface of the base (1), a transmission shaft (12) is installed at the front end of the servo motor (8), and a bottom plate (2) is fixedly mounted at the front end of the base (1), characterized in that: Also includes: A positioning seat (13) is fixedly mounted on the transmission shaft (12); Wherein, a positioning groove (17) is provided at the bottom of the positioning seat (13); The top of the positioning seat (13) is provided with a hole and a countersunk bolt (16) is movably inserted therein; A positioning screw hole (15) is provided on the upper end surface of the transmission shaft (12); The bottom end of the countersunk bolt (16) is threadedly installed in the positioning screw hole (15); An electric telescopic rod (10) is fixedly mounted on the front end of the upper surface of the base (1); The top of the electric telescopic rod (10) is located directly below the positioning groove (17).

2. A water pump impeller precision balancing machine according to claim 1, characterized in that: A connecting shaft (11) is welded and installed at the front end of the transmission shaft (12), a mounting screw hole (14) is provided at the front end of the connecting shaft (11), an impeller body (4) is movably sleeved on the connecting shaft (11), and the diameter of the connecting shaft (11) is smaller than the diameter of the transmission shaft (12).

3. A water pump impeller precision balancing machine according to claim 2, characterized in that: The internal thread of the mounting screw hole (14) is provided with a positioning bolt (5), the side of the head of the positioning bolt (5) close to the bolt rod is provided with anti-slip grooves, the diameter of the head of the positioning bolt (5) is larger than the diameter of the connecting shaft (11), and the head of the positioning bolt (5) is provided with a hexagonal groove.

4. A water pump impeller precision balancing machine according to claim 2, characterized in that: The depth of the impeller body (4) matches the length of the connecting shaft (11), the diameter of the hole inside the impeller body (4) matches the diameter of the connecting shaft (11), and the outer diameter of the impeller body (4) is smaller than the inner width of the mounting frame (6).

5. A water pump impeller precision balancing machine according to claim 1, characterized in that: A mounting frame (6) is fixedly mounted on the upper surface of the bottom plate (2), a mounting hole (9) is provided in the middle of the top of the mounting frame (6), and protective frames (3) are fixedly mounted on both sides of the bottom of the mounting frame (6), and both protective frames (3) are designed with a grid mesh structure.

6. A water pump impeller precision balancing machine according to claim 5, characterized in that: A sampling component (7) is embedded and installed in the installation hole (9), the sampling component (7) comprises a sensor and a vibration analyzer, and a signal connector is provided on the sampling component (7).

7. A water pump impeller precision balancing machine according to claim 1, characterized in that: An independent control switch is provided on one side of the electric telescopic rod (10), and the top diameter of the electric telescopic rod (10) matches the inner diameter of the positioning groove (17).

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