Dynamic balancing machine test tool

Abstract

The utility model relates to a dynamic balancing machine testing tool, which comprises a base, a pair of bases, a pair of support frame plates and two threaded rods, the two bases are arranged on the base in a sliding manner, the two support frame plates are respectively fixed at the tops of the corresponding bases and vertically extend upwards, a pair of through holes is arranged on the two support frame plates, and the two threaded rods are arranged on the two support frame plates. The threaded rods are correspondingly inserted into the two penetrating holes in the same side of the two supporting frame plates in a sliding mode respectively, and the inner diameter of the penetrating holes is larger than the maximum outer diameter of the threaded rods. The threaded rods and the internal thread baffle rings are arranged, the internal thread baffle rings on the two sides of the supporting frame plate are screwed and adjusted respectively till the internal thread baffle rings are clamped on the two sides of the supporting frame plate, the two corresponding internal thread baffle rings are used for forming a fastening point position, the supporting frame plate is clamped and fastened, and therefore four fastening point positions are formed on the two threaded rods, and the supporting frame plate is clamped and fastened. The two supporting frame plates are relatively fixed as much as possible, strong vibration caused by relative movement of the two supporting frame plates is effectively reduced, and stability and safety during dynamic balance detection are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of testing tooling, in particular to a testing tooling for a dynamic balancing machine. Background Art

[0002] A paddle is a mechanical device used to rotate to generate thrust, usually consisting of multiple blades, and is arranged in the propulsion system of a ship. To ensure that the paddle can operate stably and reduce vibration and noise when rotating at high speeds, it needs to be dynamically balanced. By measuring and adjusting the mass distribution of the paddle, it can achieve torque balance during rotation, thereby avoiding vibration and damage caused by unbalanced mass.

[0003] In the prior art, a dynamic balancing tester is mainly used to test oars. The specific testing method is to place the shaft of the oar equipped with the surface paddle on two fixture brackets in the dynamic balancing tester and lock it with a locking mechanism at the top of the bracket. The shaft is driven to rotate by the output shaft of the dynamic balancing tester, and then various data of the rotating oar are tested. In order to ensure that surface paddles of different models can be tested, the two fixture brackets are usually able to slide and adjust. However, the sliding and adjustable design makes the two fixture brackets prone to vibration during high-speed testing. When the vibrations of the two fixture brackets are not synchronized and there is a large deviation, the vibration is more obvious, resulting in an unstable testing process. Utility Model Content

[0004] The utility model aims to provide a dynamic balancing machine testing tool with high stability.

[0005] In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions.

[0006] A dynamic balancing machine test fixture comprises a base, a pair of bases, a pair of support frames, and two threaded rods. The two bases are slidably mounted on the base along the length of the dynamic balancing machine test fixture. The two support frames are respectively fixed to the tops of the corresponding bases and extend vertically upward. A pair of through holes are provided on the two support frames along the width of the dynamic balancing machine test fixture. The threaded rods are slidably inserted into the two through holes on the same side of the two support frames. The inner diameter of the through holes is larger than the maximum outer diameter of the threaded rods. The threaded rods are respectively provided with internally threaded retaining rings on both sides of each support frame plate in a threaded and matching manner. A fastening area for clamping the support frame plates is formed between the two corresponding internally threaded retaining rings.

[0007] It can be seen that by setting the threaded rod and the internal threaded retaining ring, the internal threaded retaining rings on both sides of the support frame plate are screwed and adjusted until they are clamped on both sides of the support frame plate, and the corresponding two internal threaded retaining rings are used to form fastening points, and the support frame plate is clamped and fastened, thereby forming four fastening points on the two threaded rods, and the two support frame plates are relatively fixed as much as possible, effectively reducing the strong vibration caused by the relative movement of the two support frame plates, and ensuring stability and safety during dynamic balancing detection.

[0008] Furthermore, the two threaded rods are symmetrically arranged on the support frame plate and close to the base.

[0009] The two threaded rods are arranged on the support frame plate at positions as far away as possible from the shaft rod pressing position, so as to avoid the threaded rods from blocking and interfering with the rotation of the surface paddle.

[0010] Furthermore, both ends of the two threaded rods are vertically fixed with fixing seats, and the bottom end of each fixing seat is fixed to the upper surface of the base.

[0011] Furthermore, side seats are fixed on both side end faces of the base, and each side seat is provided with a vertical through-hole, and a fastening bolt is slidably inserted into each socket. A number of fastening screw holes are arranged in an array along the sliding direction of the base on both sides of the base along the width direction, and the fastening screw holes are provided for the fastening bolts to be screwed in with matching threads.

[0012] The base is fixed by screwing the fastening bolts into the corresponding fastening screw holes, and the two ends of the threaded rod are fixedly connected to the base by using the fixing seat to fix the threaded rod. The combination of the two can realize multi-point fixation of the entire test fixture. On the one hand, it enhances the rigidity of the overall structure and can reduce the vibration caused by unstable structure. On the other hand, it ensures the stable position of each component of the fixture during the test, which helps to improve the precision and accuracy of dynamic balance detection.

[0013] Furthermore, a slide groove extending along its length is provided on the upper surface of the base, and a pair of sliding seats are slidably installed in the slide groove. The top ends of the two sliding seats extend above the base, and the two bases are respectively fixed on the top ends of the corresponding sliding seats.

[0014] The base is installed on the top of the sliding seat, and the sliding seat and the slide groove are used to provide the base with the ability to slide and adjust.

[0015] Furthermore, a slide rod extending along the length direction is fixed in the slide groove, and the two slide seats are slidably mounted on the slide rod.

[0016] The sliding seat is slidably mounted on the sliding rod to play a limiting and guiding role, thereby ensuring that the sliding process of the base and the sliding seat is smooth and stable enough, and at the same time preventing the sliding seat from falling out of the sliding groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0018] 1. The utility model provides a threaded rod and an internal threaded retaining ring, and screws and adjusts the internal threaded retaining rings on both sides of the support frame plate until they are clamped on both sides of the support frame plate. The corresponding two internal threaded retaining rings are used to form fastening points, and the support frame plate is clamped and fastened, thereby forming four fastening points on the two threaded rods, and the two support frame plates are relatively fixed as much as possible, effectively reducing the strong vibration caused by the relative movement of the two support frame plates, and ensuring stability and safety during dynamic balance detection.

[0019] 2. The two threaded rods in the present invention are symmetrically arranged on the support frame plate and close to the base. The two threaded rods are set on the support frame plate at a position as far away as possible from the shaft rod pressing position, which can avoid the threaded rods from blocking the rotation of the surface paddle and increase the installation height of the threaded rods as much as possible, thereby improving the stability of the dynamic balancing machine test fixture.

[0020] 3. The utility model utilizes fastening bolts to be screwed into corresponding fastening screw holes to fix the base, and utilizes fixing seats to fix the two ends of the threaded rod to the base to fix the threaded rod. The combination of the two enables multi-point fixation of the entire test fixture. On the one hand, it enhances the rigidity of the entire structure and can reduce vibrations caused by unstable structure. On the other hand, it ensures the stable position of each component of the fixture during the test, which helps to improve the precision and accuracy of dynamic balance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is one of the cross-sectional schematic diagrams of the present utility model;

[0023] Figure 3 This is the second cross-sectional schematic diagram of the present utility model;

[0024] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0025] Figure 5 It is a schematic cross-sectional view of a local structure in the present utility model.

[0026] In the figure: 1. Base; 11. Slide groove; 12. Slide rod; 13. Sliding seat; 2. Base; 3. Support frame plate; 31. Through hole; 4. Threaded rod; 41. Fixed seat; 5. Internal threaded retaining ring; 6. Side seat; 61. Socket; 62. Fastening bolt; 63. Fastening screw hole. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 5 The present invention provides a dynamic balancing machine test fixture, which includes a base 1, a pair of bases 2, a pair of support frames 3 and two threaded rods 4. The two bases 2 are slidably mounted on the base 1 along the length direction of the dynamic balancing machine test fixture, and the two support frames 3 are respectively fixed on the top of the corresponding bases 2 and extend vertically upward. The sliding installation of the bases 2 facilitates the sliding adjustment of the support frames 3. In addition, the tops of the two support frames 3 are provided with a clamping device (not shown in the figure) for clamping the shaft of the surface paddle. The chassis of the dynamic balancing machine (not shown in the figure) is arranged on one side of the test fixture. By connecting the shaft to the output shaft, the surface paddle can be driven to rotate for detection. The clamping device, chassis and detection principle all adopt existing technologies and will not be described in detail in this application.

[0029] A pair of through holes 31 are provided on the two support frame plates 3 along the width direction of the dynamic balancing machine test tooling. The threaded rods 4 are respectively slidably inserted into the two through holes 31 on the same side of the two support frame plates 3. The inner diameter of the through hole 31 is larger than the maximum outer diameter of the threaded rod 4, ensuring that the threaded rod 4 can pass through and adjust in the through hole 31. The threaded rods 4 are respectively threadedly matched with internal threaded retaining rings 5 ​​on both sides of each support frame plate 3. The outer diameter of the internal threaded retaining ring 5 is larger than the inner hole of the through hole 31, and a fastening area for clamping the support frame plate 3 is formed between the corresponding two internal threaded retaining rings 5.

[0030] After the shaft rod is pressed onto the top of the support frame plate 3, the internal threaded retaining rings 5 ​​on both sides of the support frame plate 3 are screwed and adjusted until they are clamped on both sides of the support frame plate 3. The corresponding two internal threaded retaining rings 5 ​​are used to form fastening points, and the support frame plate 3 is clamped and fastened, thereby forming four fastening points on the two threaded rods 4, and the two support frame plates 3 are relatively fixed as much as possible, effectively reducing the strong vibration caused by the relative movement of the two support frame plates 3, and ensuring stability and safety during dynamic balancing detection.

[0031] Specifically, the two threaded rods 4 are symmetrically arranged on the support frame plate 3 and close to the base 2. The two threaded rods 4 are set on the support frame plate 3 at a position as far away from the shaft rod as possible to avoid the threaded rods 4 from blocking the rotation of the surface paddle.

[0032] Specifically, both ends of the two threaded rods 4 are vertically fixed with fixing seats 41, and the bottom end of each fixing seat 41 is fixed to the upper surface of the base 1. The fixing seats 41 can be used to fix both ends of the threaded rod 4 on the base 1 respectively.

[0033] Specifically, side seats 6 are fixed to the end faces of both sides of the base 2, and each side seat 6 is provided with a vertical through-hole 61, and a fastening bolt 62 is slidably inserted in each hole 61. A plurality of fastening screw holes 63 are arranged in an array along the sliding direction of the base 2 on both sides of the base 2 along the width direction on the base 1. The fastening screw holes 63 are threadedly matched with the fastening bolts 62 for screwing. After the base 2 is slidably adjusted to the desired position, the base 2 can be fastened by tightening the fastening bolts 62 into the corresponding fastening screw holes 63. The fastening screw holes 63 are arranged in an array along the length direction of the base 2, which is compatible with the sliding adjustment design of the base 2, and side seats 6 are arranged on both sides of the base 2, providing two-point fastening for the base 2, and the fixing effect is better.

[0034] The base 2 is fixed by screwing the fastening bolts 62 into the corresponding fastening screw holes 63, and the two ends of the threaded rod 4 are fixedly connected to the base 1 using the fixing seat 41 to fix the threaded rod 4. The combination of the two can achieve multi-point fixation of the entire test tooling. On the one hand, the rigidity of the entire structure is enhanced and the vibration caused by the unstable structure can be reduced. On the other hand, it ensures the stable position of each component of the tooling during the test process, which helps to improve the precision and accuracy of dynamic balancing detection.

[0035] Specifically, the upper surface of the base 1 is provided with a slide groove 11 extending along its length direction, and a pair of sliding seats 13 are slidably installed in the slide groove 11. The top ends of the two sliding seats 13 extend to the top of the base 1, and the two bases 2 are respectively fixed on the top ends of the corresponding sliding seats 13. The base 2 is installed on the top of the sliding seat 13, and the sliding cooperation between the sliding seat 13 and the slide groove 11 is utilized to provide the base 2 with the ability to slide and adjust.

[0036] In addition, a slide rod 12 extending along the length direction is fixed in the slide groove 11, and the two sliding seats 13 are slidably mounted on the slide rod 12. Sliding the sliding seat 13 on the slide rod 12 plays a limiting and guiding role, thereby ensuring that the sliding process of the base 2 and the sliding seat 13 is smooth and stable enough, and at the same time, it can also prevent the sliding seat 13 from falling out of the slide groove 11.

[0037] The above is a detailed description of the present invention in conjunction with specific embodiments, and the specific implementation methods of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, if a number of equivalent substitutions or obvious modifications are made without departing from the concept of the present invention and the performance or use are the same, they should be considered to fall within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. A dynamic balancing machine test fixture, comprising a base (1), a pair of bases (2) and a pair of support frames (3), characterized in that: Also included are two threaded rods (4); The two bases (2) are slidably mounted on the base (1) along the length direction of the dynamic balancing machine test fixture, and the two support frame plates (3) are respectively fixed on the top of the corresponding bases (2) and both extend vertically upward; A pair of through holes (31) are provided on the two support frame plates (3) along the width direction of the dynamic balancing machine test fixture, and the threaded rods (4) are respectively slidably inserted into the two through holes (31) on the same side of the two support frame plates (3), and the inner diameter of the through hole (31) is larger than the maximum outer diameter of the threaded rod (4); The threaded rod (4) is provided with internal threaded retaining rings (5) on both sides of each support frame plate (3) in a threaded matching manner, and a fastening area for clamping the support frame plate (3) is formed between the two corresponding internal threaded retaining rings (5).

2. The dynamic balancing machine test fixture according to claim 1, characterized in that: The two threaded rods (4) are symmetrically arranged on the support frame plate (3) and close to the base (2).

3. The dynamic balancing machine test fixture according to claim 1, characterized in that: Both ends of the two threaded rods (4) are vertically fixed with fixing seats (41), and the bottom end of each fixing seat (41) is fixed to the upper surface of the base (1).

4. The dynamic balancing machine test fixture according to claim 2, characterized in that: Side seats (6) are fixed on both side end surfaces of the base (2), and each side seat (6) is provided with a vertical through-hole (61), and a fastening bolt (62) is slidably inserted into each of the holes (61); The base (1) is provided with a plurality of fastening screw holes (63) arranged in an array along the sliding direction of the base (2) on both sides of the base (2) along the width direction, and the fastening screw holes (63) are provided for thread matching and screwing of the fastening bolts (62).

5. The dynamic balancing machine testing fixture according to claim 1, characterized in that: The upper surface of the base (1) is provided with a slide groove (11) extending along the length direction thereof, and a pair of sliding seats (13) are slidably mounted in the slide groove (11); The top ends of the two sliding seats (13) extend to the top of the base (1), and the two bases (2) are respectively fixed on the top ends of the corresponding sliding seats (13).

6. The dynamic balancing machine testing fixture according to claim 5, characterized in that: A slide rod (12) extending along the length direction is fixed in the slide groove (11), and both of the slide seats (13) are slidably mounted on the slide rod (12).

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