Strength testing device for carbon fiber rotor of rotary machine

Abstract

The utility model discloses a strength testing device for a carbon fiber rotor of a rotary machine, relates to the field of related detection equipment for the carbon fiber rotor, and solves the problems that a plurality of groups of clamps are required to limit the carbon fiber rotor in multiple directions in a traditional fixing method, the process is complicated to operate, and the measurement efficiency is reduced. The top and the front end face of the box body are open, a strength detector body is installed on the top of the box body, two symmetrically-arranged clamping structures are arranged in the box body, each clamping structure comprises a circular ring, the side wall of each circular ring is fixedly connected with three annularly-arranged supporting rods, and the other ends of the supporting rods are fixedly connected with U-shaped rods. An L-shaped driving lever is rotationally connected into the U-shaped rod through a pin shaft, torsional springs are installed at the two ends of the pin shaft in a surrounding mode, an arc-shaped adjusting plate is installed on the inner side of the L-shaped driving lever, the cylindrical rotor is limited in all directions, sequential limiting operation is not needed, the detection efficiency is improved, excessive direction limiting structures do not need to be input, and cost input is reduced.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber rotor-related testing equipment, specifically a strength testing device for carbon fiber rotors used in rotating machinery. Background Technology

[0002] A carbon fiber rotor is a motor rotor made of carbon fiber composite material. It is usually made of carbon fiber composite material and wrapped around the surface of key components such as rotor core or permanent magnet to form a sleeve-like structure. The carbon fiber bundle can be wound onto the rotor surface in the form of filament bundle, strip, or carbon fiber prepreg cloth.

[0003] Carbon fiber rotors are widely used in the field of new energy vehicles, and testing the strength of carbon fiber in cylindrical rotors is an essential step. When measuring using a strength tester, the carbon fiber rotor must be fixed in place. Traditional fixing methods require multiple sets of clamps to achieve multi-directional limiting of the carbon fiber rotor, which is a complex process and reduces measurement efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a rotating machinery carbon fiber rotor strength testing device that limits the movement of a cylindrical rotor in all directions without requiring sequential limiting operations, thereby improving testing efficiency and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotating machinery carbon fiber rotor strength testing device, comprising a housing, wherein the top and front end of the housing are open, a strength testing instrument body is installed on the top of the housing, and two symmetrically arranged clamping structures are provided inside the housing. The clamping structures include a ring, and three annularly arranged support rods are fixedly connected to the side wall of the ring. A U-shaped rod is fixedly connected to the other end of the support rod. An L-shaped lever is rotatably connected inside the U-shaped lever through a pin. Torsion springs are installed around both ends of the pin, and an arc-shaped adjustment plate is installed inside the L-shaped lever. The housing also provides a drive structure for driving the ring to rotate and move horizontally.

[0006] Preferably, two symmetrically arranged arc-shaped reinforcing rods are fixedly connected to the outer wall of the support rod, and the other end of the arc-shaped reinforcing rod is fixedly connected to the side wall of the circular ring.

[0007] Preferably, the inner wall of the arc-shaped adjusting plate has a countersunk hole, inside which a cross bolt is installed. The other end of the cross bolt is threaded through the side wall of the L-shaped lever, and a nut is threaded to the through end of the cross bolt.

[0008] Preferably, the drive structure includes a bidirectional cylinder, with protruding plates fixedly connected to the sidewalls of both rings, and the output ends of the bidirectional cylinder fixedly connected to the protruding plates. An inner hexagonal ring sleeve is provided at the center of the ring, and the outer sidewall of the inner hexagonal ring sleeve is connected to the inner sidewall of the ring through several connecting plates. A hexagonal sliding column is slidably connected inside the inner hexagonal ring sleeve, and a support shaft is fixedly connected to the hexagonal sliding column near the side of the housing. The other end of the support shaft rotatably passes through the side of the housing. A motor is installed on one of the outer sides of the housing, and a main gear is fixedly connected to the output end of the motor. The through end of the support shaft at an adjacent position is connected to a driven gear that meshes with the main gear.

[0009] Preferably, the bottom of the housing has several mounting slots.

[0010] Preferably, bearings are installed on both outer sides of the housing, and the support shaft is rotatably connected to the outer side of the housing through the bearings. The support shaft and the hexagonal sliding column are integrally formed.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the distance between the two rings is reduced, the L-shaped lever contacts the end faces of both ends of the cylindrical rotor, causing the L-shaped lever to rotate, thereby allowing the arc-shaped adjusting plate to contact the outer surface of the cylindrical shaft, thus completing the limiting and fixing, thereby limiting the cylindrical rotor in all directions, eliminating the need for sequential limiting operations, improving detection efficiency, reducing the need for too many directional limiting structures, reducing cost investment, the entire clamping operation does not require manual operation, the operation process is simple and convenient, and the rotation and movement of the rotor after clamping ensures multiple sets of data at the measurement points, improving measurement accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0014] Figure 3 This is a three-dimensional enlarged schematic diagram of the clamping structure and driving structure in this utility model;

[0015] Figure 4 for Figure 3 A magnified three-dimensional structural diagram from another angle;

[0016] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Housing; 101. Mounting oblong hole; 2. Strength testing instrument body; 3. Clamping structure; 301. Ring; 302. Support rod; 303. Arc-shaped reinforcing rod; 304. L-shaped lever; 305. U-shaped rod; 306. Nut; 307. Torsion spring; 308. Pin; 309. Cross bolt; 3010. Countersunk hole; 3011. Arc-shaped adjusting plate; 4. Drive structure; 401. Two-way cylinder; 402. Support shaft; 403. Bearing; 404. Convex plate; 405. Hexagonal inner ring sleeve; 406. Connecting plate; 407. Motor; 408. Main gear; 409. Driven gear; 4010. Hexagonal sliding column. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The figure shows a rotating mechanical carbon fiber rotor strength testing device, including a housing 1. The top and front face of the housing 1 are open. The strength testing instrument body 2 is installed on the top of the housing 1. The housing 1 is equipped with two symmetrically arranged clamping structures 3. The clamping structure 3 includes a ring 301. Three ring-shaped support rods 302 are fixedly connected to the side wall of the ring 301. The other end of the support rod 302 is fixedly connected to a U-shaped rod 305. The U-shaped rod 305 is rotatably connected to an L-shaped lever 304 through a pin 308. Torsion springs 307 are installed around both ends of the pin 308. An arc-shaped adjusting plate 3011 is installed on the inner side of the L-shaped lever 304. The housing 1 is also equipped with a drive structure 4 that drives the ring 301 to rotate and move horizontally.

[0020] It is worth noting that the large-volume carbon fiber rotor used in the new energy tube can be hoisted to the central area of ​​the housing 1. By opening the drive structure 4, the distance between the two rings 301 is reduced, and the L-shaped lever 304 contacts the end faces of both ends of the cylindrical rotor, causing the L-shaped lever 304 to rotate. This causes the arc-shaped adjustment plate 3011 to contact the outer surface of the cylindrical shaft, thereby completing the limiting and fixing. This limits the cylindrical rotor in all directions, eliminating the need for sequential limiting operations, thus improving detection efficiency and reducing the need for excessive directional limiting structures, thereby reducing cost investment.

[0021] Please see Figure 2 and Figure 3 Two symmetrically arranged arc-shaped reinforcing rods 303 are fixedly connected to the outer wall of the support rod 302. The other end of the arc-shaped reinforcing rod 303 is fixedly connected to the side wall of the ring 301. This design enhances the connection strength between the support rod 302 and the ring 301, making the clamping structure 3 more stable as a whole. When the ring 301 rotates or moves horizontally under the drive of the drive structure 4, the support rod 302 and its connected components such as the U-shaped rod 305 and L-shaped lever 304 can remain stable and are not prone to deformation or loosening.

[0022] Please refer to Figure 5 The inner wall of the arc-shaped adjusting plate 3011 has a countersunk hole 3010, and a cross bolt 309 is installed inside it. The other end of the cross bolt 309 is threaded through the side wall of the L-shaped lever 304, and a nut 306 is threaded to the through end of the cross bolt 309.

[0023] After loosening nut 306, rotate and tighten cross bolt 309 to allow the arc-shaped adjusting plate 3011 to move horizontally. This allows for a slight change in the distance between the arc-shaped adjusting plate 3011 and the L-shaped rod 304 within a certain range. Once the arc-shaped adjusting plate 3011 is adjusted to the appropriate position, tighten nut 306 again to ensure that cross bolt 309 is fixed and to prevent the arc-shaped adjusting plate 3011 from moving during use. This allows for slight adjustment of the spacing, and after the L-shaped rod 304 is horizontally pressed, the arc-shaped adjusting plate 3011 completes the pressing and fixing of the outer circular surface of the rotor. This fine-tuning spacing design also makes the device more flexible and convenient during installation and debugging, and can adapt to different testing needs and working environments.

[0024] See Figure 1 , Figure 3 and Figure 4 The drive structure 4 includes a bidirectional cylinder 401. Two rings 301 have protruding plates 404 fixedly connected to their sidewalls. The output ends of the bidirectional cylinder 401 are fixedly connected to the protruding plates 404. An inner hexagonal ring sleeve 405 is located at the center of the ring 301. The outer sidewall of the inner hexagonal ring sleeve 405 is connected to the inner sidewall of the ring 301 via several connecting plates 406. A hexagonal sliding column 4010 is slidably connected inside the inner hexagonal ring sleeve 405. A support shaft 402 is fixedly connected to the hexagonal sliding column 4010 near the side of the housing 1. The other end of the support shaft 402 rotatably passes through the side of the housing 1. A motor 407 is installed on one of the outer sides of the housing 1. A main gear 408 is fixedly connected to the output end of the motor 407. The through end of the adjacent support shaft 402 is connected to a driven gear 409 that meshes with the main gear 408.

[0025] It is worth noting that the operation of the bidirectional cylinder 401 can drive the two rings 301 to move synchronously towards or away from each other, thereby adjusting the distance between the rings 301 to fix the rotor whose strength is to be tested. The design of the inner hexagonal ring sleeve 405 and the hexagonal sliding column 4010 allows the hexagonal sliding column 4010 to slide stably inside the inner hexagonal ring sleeve 405, thereby ensuring the smooth rotation of the support shaft 402 on the housing 1. When the motor 407 starts, its output end drives the main gear 408 to rotate. The meshing relationship between the main gear 408 and the driven gear 409 causes the support shaft 402 to rotate accordingly, thereby driving the rotor to perform rotation testing, changing the rotor rotation angle, so that the test point area is located on the outer circular surface of the rotor, and multiple sets of data are measured to improve the measurement accuracy. Moreover, the entire clamping and rotation movement does not require manual operation, making the operation more convenient.

[0026] See Figure 1 The bottom of the box 1 has several mounting holes 101, which are used to fix the box 1 on the table for use.

[0027] See Figure 2 and Figure 4 Bearings 403 are installed on both outer sides of the housing 1. The support shaft 402 is rotatably connected to the outer side of the housing 1 through the bearings 403. The support shaft 402 is integrally formed with the hexagonal sliding column 4010.

[0028] This design ensures the stability and durability of the support shaft 402 during rotation, reducing wear and loosening caused by long-term rotation, and further improving the reliability and service life of the testing device. The integrated design of the support shaft 402 and hexagonal slide column 4010 enhances structural stability, reduces assembly errors between components, ensures coaxiality during rotation, and further improves testing accuracy and stability. The hexagonal slide column 4010 not only facilitates sliding with the internal hexagonal ring 405 but also enhances the torsional resistance of the support shaft 402 under load, enabling the entire device to maintain good operating condition even under heavy loads.

[0029] Working principle: First, the large-volume carbon fiber rotor to be tested is hoisted into the central area of ​​the housing 1. Then, the bidirectional cylinder 401 in the drive structure 4 is activated. The operation of the bidirectional cylinder 401 drives the two rings 301 to move synchronously towards each other, so that the distance between the two rings 301 gradually decreases. During this process, the L-shaped lever 304 contacts the end faces of both ends of the cylindrical rotor and rotates. Since the pin 308 is surrounded by torsion springs 307, the rotation of the L-shaped lever 304 will cause the torsion springs 307 to deform, thereby generating a restoring force. This causes the arc-shaped adjusting plate 3011 on the inner side of the L-shaped lever 304 to contact the outer surface of the cylindrical rotor, thereby completing the limiting and fixing. In this way, the device limits the cylindrical rotor in all directions without the need for sequential limiting operations, thus improving the testing efficiency.

[0030] After the rotor is fixed, the motor 407 is started. The output of the motor 407 drives the main gear 408 to rotate. Since the main gear 408 meshes with the driven gear 409, the driven gear 409 will rotate accordingly, thereby driving the support shaft 402 to rotate. The rotation of the support shaft 402 will cause the hexagonal sliding column 4010 to slide stably inside the internal hexagonal ring 405, while simultaneously driving the rotor to rotate for testing. In this way, the rotation angle of the rotor can be changed so that the test point area is located on the outer surface of the rotor, allowing for multiple sets of data measurements and improving measurement accuracy.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotating machinery carbon fiber rotor strength testing device, comprising a housing (1), characterized in that, The top and front face of the box (1) are open. The strength tester body (2) is installed on the top of the box (1). The box (1) is equipped with two symmetrical clamping structures (3). The clamping structure (3) includes a ring (301). Three ring-shaped support rods (302) are fixedly connected to the side wall of the ring (301). A U-shaped rod (305) is fixedly connected to the other end of the support rod (302). An L-shaped lever (304) is rotatably connected to the U-shaped rod (305) through a pin (308). Torsion springs (307) are installed around both ends of the pin (308). An arc-shaped adjustment plate (3011) is installed on the inner side of the L-shaped lever (304). The box (1) is also equipped with a drive structure (4) that drives the ring (301) to rotate and move horizontally.

2. The rotating machinery carbon fiber rotor strength testing device according to claim 1, characterized in that: The outer wall of the support rod (302) is fixedly connected to two symmetrically arranged arc-shaped reinforcing rods (303), and the other end of the arc-shaped reinforcing rod (303) is fixedly connected to the side wall of the ring (301).

3. The rotating machinery carbon fiber rotor strength testing device according to claim 1, characterized in that: The inner wall of the arc-shaped adjusting plate (3011) is provided with a countersunk hole (3010), and a cross bolt (309) is provided inside it. The other end of the cross bolt (309) is threaded through the side wall of the L-shaped lever (304), and a nut (306) is threaded to the through end of the cross bolt (309).

4. The rotating machinery carbon fiber rotor strength testing device according to claim 1, characterized in that: The driving structure (4) includes a two-way cylinder (401), and two rings (301) with convex plates (404) fixedly connected to their side walls. The output ends of the two-way cylinder (401) are fixedly connected to the convex plates (404). An inner hexagonal ring sleeve (405) is provided at the center of the ring (301). The outer side wall of the inner hexagonal ring sleeve (405) is connected to the inner side wall of the ring (301) through several connecting plates (406). The inner hexagonal ring sleeve (405) is slidably connected inside. There is a hexagonal sliding column (4010), and a support shaft (402) is fixedly connected to the side of the box (1) near the hexagonal sliding column (4010). The other end of the support shaft (402) rotates through the side of the box (1). A motor (407) is installed on one of the outer sides of the box (1). A main gear (408) is fixedly connected to the output end of the motor (407). The through end of the support shaft (402) at the adjacent position is connected to a driven gear (409) that meshes with the main gear (408).

5. The rotating machinery carbon fiber rotor strength testing device according to claim 4, characterized in that: The bottom of the box (1) has several mounting waist-shaped holes (101).

6. The rotating machinery carbon fiber rotor strength testing device according to claim 4, characterized in that: Bearings (403) are installed on both outer sides of the housing (1). The support shaft (402) is rotatably connected to the outer side of the housing (1) through the bearings (403). The support shaft (402) and the hexagonal sliding column (4010) are integrally formed.

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