Compression resistance stability testing machine for bicycle rim

Abstract

The utility model relates to the technical field of bicycle rim testing, and discloses a bicycle rim compression resistance stability testing machine, which comprises a bottom plate, the inside of the bottom plate is hollow, the upper surface of the bottom plate is provided with two movable grooves, a bidirectional screw rod is rotatably connected between two side walls in the bottom plate, and the bidirectional screw rod is provided with a clamping groove. The surface of the bidirectional screw rod is sleeved with two screw sleeves in a threaded mode, the upper surfaces of the two screw sleeves are fixedly connected with mounting plates, the opposite side faces of the two mounting plates are rotationally connected with rotating rods, and one ends of the two rotating rods are fixedly connected with chucks; wherein the upper surface of one mounting plate is fixedly connected with a transverse plate, the upper surface of the transverse plate is fixedly provided with an electric push rod, the testing machine can quickly clamp and fix a rim in the use process, then tests the rim, and can rotate the rim at the same time, so that different positions of the rim are tested, and the testing efficiency is improved. And the test result is more comprehensive.

Description

Technical Field

[0001] This utility model relates to the field of bicycle rim testing technology, specifically a bicycle rim compression stability testing machine. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is typically a small, two-wheeled land vehicle. Bicycles can also be used as an environmentally friendly means of transportation for getting around. The main components of a bicycle include the frame, fork, handlebars, saddle, and fork assembly. The drivetrain includes pedals, cranks, chainrings, chain, bottom bracket, and freewheel, propelled by human power. The running gear generally includes the front and rear wheels, front and rear axle components, spokes, rims, and tires.

[0003] Traditional methods for testing the compressive stability of bicycle rims are relatively simple, mostly relying on human experience to make judgments. This involves observing whether the rim has obvious deformation or conducting a simple compression test. However, these methods cannot accurately measure the specific performance parameters of the rim under different pressure conditions, nor can they comprehensively test the compressive stability of various parts of the rim. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bicycle rim compression stability testing machine. It solves the problem that traditional methods for testing the compression stability of bicycle rims are relatively simple and mostly rely on manual experience to judge, such as observing whether there is obvious deformation on the rim's appearance or performing a simple compression test on the rim. However, these methods cannot accurately measure the specific performance parameters of the rim under different pressure conditions, nor can they comprehensively test the compression stability of various parts of the rim.

[0005] This utility model provides the following technical solution: a bicycle rim compression stability testing machine, including a base plate, the interior of which is hollow and the upper surface of which has two movable grooves, a bidirectional screw rod rotatably connected between the two inner side walls of the base plate, two threaded sleeves threaded onto the surface of the bidirectional screw rod, a mounting plate fixedly connected to the upper surface of each of the two threaded sleeves, a rotating rod rotatably connected to the opposite side of each of the two mounting plates, and a clamping plate fixedly connected to one end of each of the two rotating rods;

[0006] A horizontal plate is fixedly connected to the upper surface of one of the mounting plates, and an electric push rod is fixedly installed on the upper surface of the horizontal plate. The output end of the electric push rod extends to the lower part of the horizontal plate and is fixedly connected to a connecting plate. Multiple pressure sensors are installed on the lower surface of the connecting plate, and a pressure plate is fixedly installed between the bottom ends of the multiple pressure sensors.

[0007] Preferred technical solution 1: Positioning rods are fixedly installed on the opposite sides of the two clamping plates, and the positioning rods are matched with the center mounting holes of the wheel rim.

[0008] Preferred technical solution 2: A first motor is fixedly installed on the side of one of the mounting plates, and the output end of the first motor passes through the mounting plate and is fixedly connected to the corresponding rotating rod.

[0009] Preferred technical solution 3: A sliding rod is fixedly connected between the two inner side walls of the base plate, and two sliding sleeves are slidably sleeved on the surface of the sliding rod. The two sliding sleeves are fixedly connected to the two mounting plates respectively, and the two sliding sleeves and the two screw sleeves can move inside the two movable grooves respectively.

[0010] Preferred technical solution four: A second motor is fixedly installed on the side of the base plate, and the output end of the second motor extends into the interior of the base plate and is fixedly connected to the bidirectional screw.

[0011] Preferred technical solution five: rubber pads are fixedly adhered to the opposite sides of the two clamping plates, and rubber pads are fixedly adhered to the lower surface of the pressure plate.

[0012] Compared with existing technologies, this utility model provides a bicycle rim compression stability testing machine with the following advantages: During use, the rim to be tested is placed between two mounting plates. The rotation of a second motor drives a bidirectional screw, causing two threaded sleeves and two mounting plates to move towards each other, inserting two positioning rods into the center mounting hole of the rim for initial positioning. Simultaneously, a clamping plate clamps and fixes the two sides of the rim, locking it in place. Then, the extension of an electric push rod moves the connecting plate and pressure plate downwards, causing the pressure plate to compress the rim. A pressure sensor detects the pressure. When testing different positions of the rim, the rotation of a first motor drives the clamping plate, causing the rim to rotate due to friction between the clamping plate and the rim. This allows different positions of the rim to be positioned below the pressure plate for testing. This testing machine can quickly clamp and fix the rim for testing, and can also rotate the rim to test different positions, resulting in more comprehensive test results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the mounting plate and wheel structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the internal structure of the base plate of this utility model.

[0016] In the diagram: 1. Base plate; 2. Movable groove; 3. Bidirectional screw; 4. Screw sleeve; 5. Mounting plate; 6. Clamping plate; 7. Horizontal plate; 8. Electric push rod; 9. Connecting plate; 10. Pressure sensor; 11. Pressure plate; 12. Positioning rod; 13. First motor; 14. Slide rod; 15. Slide sleeve; 16. Second motor; 17. Rotating rod. Detailed Implementation

[0017] Please see Figure 1-3 ,

[0018] Example 1: A bicycle rim compression stability testing machine includes a base plate 1. The interior of the base plate 1 is hollow and the upper surface has two movable grooves 2. A bidirectional screw 3 is rotatably connected between the two inner side walls of the base plate 1. Two threaded sleeves 4 are threaded onto the surface of the bidirectional screw 3. Mounting plates 5 are fixedly connected to the upper surfaces of the two threaded sleeves 4. Rotating rods 17 are rotatably connected to the opposite sides of the two mounting plates 5. A clamping plate 6 is fixedly connected to one end of each of the two rotating rods 17.

[0019] A horizontal plate 7 is fixedly connected to the upper surface of one of the mounting plates 5. An electric push rod 8 is fixedly installed on the upper surface of the horizontal plate 7. The output end of the electric push rod 8 extends to the lower part of the horizontal plate 7 and is fixedly connected to a connecting plate 9. Multiple pressure sensors 10 are installed on the lower surface of the connecting plate 9. A pressure plate 11 is fixedly installed between the bottom ends of the multiple pressure sensors 10.

[0020] Example 2: The difference between this example and Example 1 is that positioning rods 12 are fixedly installed on the opposite sides of the two clamping plates 6. The positioning rods 12 match the center mounting holes of the wheel rim, which facilitates the initial positioning of the wheel rim and makes it easier to fix it later.

[0021] Example 3: The difference between this example and Example 1 is that a first motor 13 is fixedly installed on the side of one of the mounting plates 5. The output end of the first motor 13 passes through the connected mounting plate 5 and is fixedly connected to the corresponding rotating rod 17. The rotation of the first motor 13 can drive the wheel rim to rotate, which is convenient for testing its different positions.

[0022] Example 4: The difference between this example and Example 1 is that a sliding rod 14 is fixedly connected between the two inner side walls of the base plate 1. Two sliding sleeves 15 are slidably sleeved on the surface of the sliding rod 14. The two sliding sleeves 15 are fixedly connected to the two mounting plates 5 respectively. The two sliding sleeves 15 and the two threaded sleeves 4 can move inside the two movable grooves 2 respectively. The movement of the mounting plate 5 can be restricted by the sliding rod 14 and the sliding sleeves 15, so that its movement is more stable and it is easier to clamp the wheel rim.

[0023] Example 5: The difference between this example and Example 1 is that a second motor 16 is fixedly installed on the side of the base plate 1, and the output end of the second motor 16 extends into the interior of the base plate 1 and is fixedly connected to the bidirectional screw 3.

[0024] Example 6: The difference between this example and Example 1 is that rubber pads are fixedly adhered to the opposite sides of the two clamping plates 6, and rubber pads are fixedly adhered to the lower surface of the pressure plate 11 to protect the wheel rim and prevent damage to the wheel rim.

[0025] In summary, this bicycle rim compression stability testing machine, when in use, places the rim to be tested between two mounting plates 5. Then, the rotation of the second motor 16 drives the bidirectional screw 3 to rotate, thereby causing the two screw sleeves 4 and the two mounting plates 5 to move towards each other, and inserting the two positioning rods 12 into the center mounting hole of the rim for initial positioning. At the same time, the clamping plates 6 clamp and fix the two sides of the rim, thereby completing the locking of the rim. Then, the extension of the electric push rod 8 drives the connecting plate 9 and the pressure plate 11 to move downward, causing the pressure plate 11 to press against the rim. The machine performs compression and detects the pressure through pressure sensor 10. When different positions of the rim need to be tested, the rotation of the first motor 13 drives the clamping plate 6 to rotate. The friction between the clamping plate 6 and the rim causes the rim to rotate, so that different positions of the rim can be located under the pressure plate 11 for testing. During use, the testing machine can quickly clamp and fix the rim for testing, and can also rotate the rim to test different positions of the rim, resulting in more comprehensive test results.

Claims

1. A bicycle rim compression stability testing machine, comprising a base plate (1), characterized in that: The bottom plate (1) is hollow inside and has two movable grooves (2) on its upper surface. A bidirectional screw (3) is rotatably connected between the two inner side walls of the bottom plate (1). Two screw sleeves (4) are threaded onto the surface of the bidirectional screw (3). Mounting plates (5) are fixedly connected to the upper surfaces of the two screw sleeves (4). Rotating rods (17) are rotatably connected to the opposite sides of the two mounting plates (5). A clamp (6) is fixedly connected to one end of each of the two rotating rods (17). A horizontal plate (7) is fixedly connected to the upper surface of one of the mounting plates (5). An electric push rod (8) is fixedly installed on the upper surface of the horizontal plate (7). The output end of the electric push rod (8) extends to the lower part of the horizontal plate (7) and is fixedly connected to a connecting plate (9). A plurality of pressure sensors (10) are installed on the lower surface of the connecting plate (9). A pressure plate (11) is fixedly installed between the bottom ends of the plurality of pressure sensors (10).

2. The bicycle rim compression stability testing machine according to claim 1, characterized in that: Positioning rods (12) are fixedly installed on the opposite sides of the two clamps (6), and the positioning rods (12) are matched with the center mounting holes of the wheel rim.

3. The bicycle rim compression stability testing machine according to claim 1, characterized in that: A first motor (13) is fixedly mounted on the side of one of the mounting plates (5), and the output end of the first motor (13) passes through the mounting plate (5) and is fixedly connected to the corresponding rotating rod (17).

4. The bicycle rim compression stability testing machine according to claim 1, characterized in that: A sliding rod (14) is fixedly connected between the two inner side walls of the base plate (1). Two sliding sleeves (15) are slidably sleeved on the surface of the sliding rod (14). The two sliding sleeves (15) are fixedly connected to the two mounting plates (5) respectively. The two sliding sleeves (15) and the two screw sleeves (4) can move inside the two movable grooves (2) respectively.

5. The bicycle rim compression stability testing machine according to claim 1, characterized in that: A second motor (16) is fixedly installed on the side of the base plate (1), and the output end of the second motor (16) extends into the interior of the base plate (1) and is fixedly connected to the bidirectional screw (3).

6. The bicycle rim compression stability testing machine according to claim 1, characterized in that: Rubber pads are fixedly adhered to the opposite sides of the two clamping discs (6), and rubber pads are fixedly adhered to the lower surface of the pressure plate (11).

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