A large propeller balanced detection and correction integrated machine tool

By using a combination of rotating collar and arc-shaped clamping plate, the problem of difficult installation of propeller and motor output shaft in existing technologies is solved, enabling rapid fixing and balance testing of the propeller and improving work efficiency.

CN224334414UActive Publication Date: 2026-06-09ZHENJIANG TONGZHOU PROPELLER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG TONGZHOU PROPELLER
Filing Date
2025-05-13
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing large propeller balancing and correction machine tools are difficult to operate when installing the propeller and motor output shaft, resulting in low work efficiency.

Method used

A large propeller dynamic balance detection and correction integrated machine tool was designed. The propeller body is quickly fixed by a combination of rotating collar and arc-shaped clamping plate, and the balance detection and correction are performed by using a drive motor to drive the insertion cylinder to rotate.

Benefits of technology

The installation process of the propeller and motor output shaft has been simplified, improving operational efficiency and reducing the difficulty of operation for staff.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224334414U_ABST
    Figure CN224334414U_ABST
Patent Text Reader

Abstract

The utility model relates to machine tool technical field discloses a large -scale propeller movement's balance detection and correction integrated machine tool, solved the existing large -scale propeller balance detection correction machine tool when installing propeller and motor output shaft is very inconvenient, increased the operation difficulty of staff, reduced the work efficiency's problem, it includes machine tool table, the bottom annular equidistance fixed mounting of machine tool table has four support legs, and the top of machine tool table is fixedly installed with the support disc through four support bars, and the middle part fixed mounting of machine tool table top has the installation cylinder, and the front part of installation cylinder is equipped with the opening, and the bottom fixed mounting of support disc has the propeller balance machine, and the middle part fixed mounting of machine tool table bottom has drive motor, this large -scale propeller balance detection correction machine tool can install propeller and motor output shaft quickly and conveniently, thereby reduced the operation difficulty of staff, improved work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of machine tool technology, specifically a large propeller dynamic balance detection and correction integrated machine tool. Background Technology

[0002] The large propeller dynamic balancing detection and correction integrated machine tool is a high-end industrial equipment that integrates high-precision detection and automated correction functions. It is specifically designed to solve the vibration problem caused by uneven mass distribution in the manufacturing, maintenance and use of large propellers. Its core function is to identify the unbalance of the propeller through dynamic detection technology and use an automated machining system to achieve precise correction, thereby improving the stability of equipment operation, extending service life and reducing maintenance costs. It uses high-precision sensors (such as laser displacement sensors and accelerometers) to monitor the vibration signal of the propeller rotation in real time, and analyzes the vibration spectrum through signal processing algorithms (such as Fast Fourier Transform, FFT) to accurately locate the position and magnitude of the unbalanced mass. Combined with the propeller's geometric parameters (such as blade shape and mass distribution), a mathematical model is established to predict dynamic characteristics. Based on the detection results, the system automatically plans the correction path, removes excess material through CNC machining units (such as milling, grinding or laser ablation), and adopts a closed-loop control system to monitor the mass change during the correction process in real time to ensure correction accuracy. It supports multiple correction methods (such as local weight removal and counterweight adjustment) to meet the needs of different types of propellers.

[0003] The existing large propeller balancing and correction machine tool is very inconvenient to install the propeller and motor output shaft, which increases the difficulty of operation for workers and reduces work efficiency. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an integrated machine tool for the dynamic balance detection and correction of large propellers. It effectively solves the problem that the existing large propeller balance detection and correction machine tools are very inconvenient to install the propeller and motor output shaft, which increases the difficulty of operation for workers and reduces work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-scale propeller dynamic balance detection and correction integrated machine tool, comprising a machine table, four support legs fixedly installed at equal intervals in a ring at the bottom of the machine table, a support plate fixedly installed on the top of the machine table via four support rods, a mounting cylinder fixedly installed in the middle of the top of the machine table, an opening at the front of the mounting cylinder, a propeller balancing machine fixedly installed at the bottom of the support plate, a drive motor fixedly installed in the middle of the bottom of the machine table, the output end of the drive motor extending into the interior of the mounting cylinder and fixedly installed with an insert, and four arc-shaped clamping plates arranged at equal intervals in a ring inside the insert. Inside the insert cylinder, between four arc-shaped clamping plates, a drive shaft is movably inserted. The propeller body is fixedly mounted on the top of the drive shaft. A rotating collar is fitted onto the lower end of the insert cylinder. Several ribs are fixedly mounted circumferentially on the surface of the rotating collar. The inner wall of the rotating collar has internal threads, and the surface of the insert cylinder has external threads. The rotating collar is connected to the insert cylinder through the engagement of the internal and external threads. A transmission assembly is provided on the upper part of the rotating collar. The transmission assembly is connected to the four arc-shaped clamping plates. When the rotating collar rotates, it outputs power to the four arc-shaped clamping plates through the transmission assembly, so that the four arc-shaped clamping plates synchronously clamp the drive shaft on the propeller body.

[0006] Preferably, four support arms are fixedly installed at equal intervals in a ring at the upper end of the insert, and a limiting slip ring is fixedly installed between one end of the four support arms. An annular groove is opened on the inner wall of the installation cylinder, and the limiting slip ring is slidably installed inside the annular groove.

[0007] Preferably, the transmission assembly includes a push cover, which is fixedly installed on the top of the rotating collar. Four rectangular insert rods are movably inserted into the middle of the insert surface at equal intervals in a ring. One end of each of the four rectangular insert rods extends into the interior of the insert and is fixedly connected to four arc-shaped clamps respectively. The other end of each of the four rectangular insert rods is fixedly installed with a contact head through a push plate.

[0008] Preferably, each of the four rectangular inserts is fitted with a return spring, and both ends of the four return springs are fixedly connected to the insert and the push plate, respectively.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the operator inserts the drive shaft on the propeller body into the inside of the insert, and then the operator inserts a wrench into the inside of the mounting cylinder through the opening. With the cooperation of several ribs, the wrench drives the rotating ring to rotate. When the rotating ring rotates, it moves upward through the cooperation of the internal thread and the external thread on the insert. When the rotating ring moves upward, it pushes the four contact heads inward through the push cover. When the four contact heads move inward, they all drive the rectangular insert rods inward through the push plate, and simultaneously squeeze the four return springs, so that the four rectangular insert rods have the ability to elastically return. When the four rectangular insert rods move inward in sync, they all clamp and fix the drive shaft on the propeller body through the arc-shaped clamp, thereby quickly completing the fixation of the propeller body.

[0010] The operator then starts the drive motor to rotate the insert cylinder. As the insert cylinder rotates, the four support arms drive the limit slip ring to slide along the inside of the annular groove, improving the stability of the insert cylinder during rotation. The rotation of the insert cylinder, through the clamping of the four arc-shaped clamps, drives the drive shaft to rotate, which in turn drives the propeller body to rotate. At the same time, the propeller body is balanced by a propeller balancing machine, and corrections are made after the balance test. This allows the large propeller balancing test and correction machine to quickly and easily install the propeller and the motor output shaft, thereby reducing the difficulty of operation for the staff and improving work efficiency. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the integrated machine tool structure for balancing and correcting large propeller motion, as described in this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the integrated machine tool structure for balancing and correcting large propeller motion, as described in this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the internal structure of the insert of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the mounting cylinder of this utility model;

[0017] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0018] In the diagram: 1. Machine table; 2. Support leg; 3. Mounting cylinder; 4. Support rod; 5. Support plate; 6. Propeller balancing machine; 7. Drive motor; 8. Insert cylinder; 9. Drive shaft; 10. Propeller body; 11. External thread; 12. Rotating collar; 13. Internal thread; 14. Push cover; 15. Arc-shaped clamp; 16. Rectangular insert rod; 17. Push plate; 18. Contact head; 19. Return spring; 20. Support arm; 21. Limiting slip ring; 22. Annular groove; 23. Rib; 24. Opening. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1 to 5 The present invention includes a machine tool table 1. Four support legs 2 are fixedly mounted at equal intervals in a ring at the bottom of the machine tool table 1. A support plate 5 is fixedly mounted on the top of the machine tool table 1 via four support rods 4. A mounting cylinder 3 is fixedly mounted in the middle of the top of the machine tool table 1. An opening 24 is provided at the front of the mounting cylinder 3. A propeller balancing machine 6 is fixedly mounted at the bottom of the support plate 5. A drive motor 7 is fixedly mounted in the middle of the bottom of the machine tool table 1. The output end of the drive motor 7 extends into the interior of the mounting cylinder 3 and is fixedly mounted with an insert 8. Four arc-shaped clamping plates 15 are arranged at equal intervals in a ring inside the insert 8. A drive shaft 9 is movably inserted into the interior of the insert 8, located between the four arc-shaped clamping plates 15. The propeller body 10 is fixedly installed at the top of the drive shaft 9. A rotating collar 12 is fitted at the lower end of the insert 8. Several ribs 23 are fixedly installed at equal intervals in a ring on the surface of the rotating collar 12. The inner wall of the rotating collar 12 is provided with an internal thread 13, and the surface of the insert 8 is provided with an external thread 11. The rotating collar 12 is connected to the insert 8 through the cooperation of the internal thread 13 and the external thread 11. A transmission assembly is provided on the upper part of the rotating collar 12. The transmission assembly is connected to four arc-shaped clamping plates 15. When the rotating collar 12 rotates, the power is output to the four arc-shaped clamping plates 15 through the transmission assembly, so that the four arc-shaped clamping plates 15 simultaneously clamp the drive shaft 9 on the propeller body 10.

[0021] In use, the operator inserts the drive shaft 9 on the propeller body 10 into the inside of the insert 8. Then, the operator inserts a wrench into the inside of the mounting cylinder 3 through the opening 24. With the cooperation of several ribs 23, the wrench drives the rotating collar 12 to rotate. When the rotating collar 12 rotates, it moves upward through the cooperation of the internal thread 13 and the external thread 11 on the insert 8. When the rotating collar 12 moves upward, it will drive the four arc-shaped clamps 15 through the transmission component to clamp and fix the drive shaft 9 on the propeller body 10, thereby quickly completing the fixation of the propeller body 10.

[0022] Then, the operator starts the drive motor 7 to drive the insertion cylinder 8 to rotate. When the insertion cylinder 8 rotates, it drives the drive shaft 9 to rotate through the clamping of the four arc-shaped clamping plates 15. When the drive shaft 9 rotates, it drives the propeller body 10 to rotate. At the same time, the propeller balancing machine 6 performs balance detection on the propeller body 10 and makes corrections after detection. This large propeller balance detection and correction machine tool can quickly and conveniently install the propeller and the motor output shaft, thereby reducing the difficulty of operation for the staff and improving work efficiency.

[0023] Four support arms 20 are fixedly installed at equal intervals in a ring at the upper end of the insert 8. A limiting slip ring 21 is fixedly installed between one end of the four support arms 20. An annular groove 22 is opened on the inner wall of the mounting cylinder 3. The limiting slip ring 21 is slidably installed inside the annular groove 22.

[0024] When the insert 8 rotates, the four support arms 20 drive the limiting slip ring 21 to slide along the inside of the annular groove 22, which improves the stability of the insert 8 when rotating.

[0025] The transmission assembly includes a push cover 14, which is fixedly installed on the top of the rotating collar 12. Four rectangular insert rods 16 are equidistantly inserted into the middle of the surface of the insert cylinder 8. One end of each of the four rectangular insert rods 16 extends into the interior of the insert cylinder 8 and is fixedly connected to four arc-shaped clamps 15 respectively. The other end of each of the four rectangular insert rods 16 is fixedly installed with a contact head 18 through a push plate 17. A return spring 19 is sleeved on the surface of each of the four rectangular insert rods 16. Both ends of each of the four return springs 19 are fixedly connected to the insert cylinder 8 and the push plate 17 respectively.

[0026] When the rotating collar 12 moves upward, it pushes the four contact heads 18 inward through the push cover 14. When the four contact heads 18 move inward, they all drive the rectangular insert rods 16 inward through the push plate 17, and simultaneously squeeze the four return springs 19, so that the four rectangular insert rods 16 have the ability to elastically return. When the four rectangular insert rods 16 move inward in sync, they all clamp and fix the drive shaft 9 on the propeller body 10 through the arc-shaped clamp 15, thereby quickly completing the fixation of the propeller body 10.

Claims

1. A large propeller dynamic balance detection and correction integrated machine tool, comprising a machine tool table (1), characterized in that: The bottom of the machine tool table (1) is fixedly equipped with four support legs (2) at equal intervals in a ring. The top of the machine tool table (1) is fixedly equipped with a support plate (5) by four support rods (4). The middle of the top of the machine tool table (1) is fixedly equipped with a mounting cylinder (3). The front of the mounting cylinder (3) is opened (24). The bottom of the support plate (5) is fixedly equipped with a propeller balancing machine (6). The middle of the bottom of the machine tool table (1) is fixedly equipped with a drive motor (7). The output end of the drive motor (7) extends into the interior of the mounting cylinder (3) and is fixedly equipped with a plug cylinder (8). The interior of the plug cylinder (8) is provided with four arc-shaped clamps (15) at equal intervals in a ring. The interior of the plug cylinder (8) and located between the four arc-shaped clamps (15) is movably connected to a drive shaft (9). The top of the propeller body (10) is fixedly installed. The lower end of the insert (8) is fitted with a rotating collar (12). Several ribs (23) are fixedly installed on the surface of the rotating collar (12) at equal intervals. The inner wall of the rotating collar (12) is provided with an internal thread (13). The surface of the insert (8) is provided with an external thread (11). The rotating collar (12) is connected to the insert (8) through the cooperation of the internal thread (13) and the external thread (11). The upper part of the rotating collar (12) is provided with a transmission component. The transmission component is connected to four arc-shaped clamps (15). When the rotating collar (12) rotates, the power is output to the four arc-shaped clamps (15) through the transmission component, so that the four arc-shaped clamps (15) clamp the drive shaft (9) on the propeller body (10) synchronously.

2. The integrated machine tool for large propeller dynamic balance detection and correction according to claim 1, characterized in that: The upper end of the insert (8) is fixedly equipped with four support arms (20) at equal intervals in a ring. A limiting slip ring (21) is fixedly installed between one end of the four support arms (20). The inner wall of the mounting cylinder (3) is provided with an annular sliding groove (22), and the limiting slip ring (21) is slidably installed inside the annular sliding groove (22).

3. The integrated machine tool for large propeller dynamic balance detection and correction according to claim 1, characterized in that: The transmission assembly includes a push cover (14), which is fixedly installed on the top of the rotating collar (12). Four rectangular insert rods (16) are equidistantly inserted into the middle of the surface of the insert (8). One end of each of the four rectangular insert rods (16) extends into the interior of the insert (8) and is fixedly connected to four arc-shaped clamps (15). The other end of each of the four rectangular insert rods (16) is fixedly installed with a contact head (18) through a push plate (17).

4. The integrated machine tool for large propeller dynamic balance detection and correction according to claim 3, characterized in that: Each of the four rectangular inserts (16) is fitted with a return spring (19), and both ends of the four return springs (19) are fixedly connected to the insert (8) and the push plate (17), respectively.