Gear shaft strength detection device

Abstract

The utility model relates to gear shaft technical field, and specifically discloses a gear shaft strength detection device, including detection platform and installation ring, two mutually symmetrical slide frames are connected with the top end sliding of detection platform, two slide frames top rotatoryly connected have the rotating block, two rotating blocks opposite fixedly connected have the connecting column, two rotating blocks opposite fixedly connected have the installation ring, and the installation ring middle part is provided with the positioning mechanism including fixed block and sliding block, still including gear shaft, and the gear shaft both ends are provided with the key groove. The positioning mechanism can make gear shaft detect the tensile strength in horizontal direction, and also can detect the torsion slight degree through the connecting column and the connector, make gear shaft stable in the strength detection process and not slide and affect the accuracy of detection result.

Description

Technical Field

[0001] This utility model relates to the field of template technology, and in particular to a gear shaft strength testing device. Background Technology

[0002] The strength of gear shafts directly affects the safe use of equipment. By conducting quality tests on the strength of gear shafts, substandard gear shafts can be prevented from affecting equipment safety and the occurrence of accidents can be reduced.

[0003] However, some strength testing devices for gear shafts test by clamping the outer wall of the gear shaft and applying force. In the test of the torsional strength of the gear shaft, the gear shaft may slip, resulting in inaccurate torsional strength test results. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gear shaft strength testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gear shaft strength testing device includes a testing platform and a mounting ring. The top of the testing platform is slidably connected to two mutually symmetrical sliding frames. The top of the two sliding frames is rotatably connected to a rotating block. The two rotating blocks are fixedly connected to a connecting column on their opposite sides. The two rotating blocks are fixedly connected to a mounting ring on their opposite sides. A positioning mechanism including a fixed block and a sliding block is provided in the middle of the mounting ring.

[0007] It also includes a gear shaft, which has keyways at both ends;

[0008] A fixing block is fixedly connected to one side of the central hole of the mounting ring, and a sliding groove is opened on the other side of the central hole of the mounting ring. A sliding block is slidably connected in the sliding groove. The length of the sliding block is greater than the length of the fixing block. A second screw is threadedly connected to the center of the sliding block, and the end of the second screw away from the fixing block passes through the mounting ring.

[0009] Preferably, a motor box is fixedly installed at the top center of the testing platform, and a dual-axis motor is installed inside the motor box. The two output shafts of the dual-axis motor are fixedly connected to a first screw. The threads of the two first screws are opposite, and the two first screws are respectively threaded to the bottom of the two sliding frames.

[0010] Preferably, the outer wall of the rotating block is provided with a sinking groove, and the connection between the sliding frame and the rotating block is rotatably connected by an annular block adapted to the sinking groove.

[0011] Preferably, the end of the connecting column is provided with a connector, which can be connected to an external torque machine, and the connecting column is slidably connected to a fixed plate fixedly connected to the top of the testing platform.

[0012] Preferably, the top of the mounting ring has an opening that communicates with the center of the mounting ring, and the width of the opening is greater than the diameter of both ends of the gear shaft.

[0013] Preferably, the top and bottom ends of the fixing block are fixedly connected to limit blocks, and the end of the second screw is fixedly connected to a handle.

[0014] Preferably, the sliding block has four symmetrical movable slots at its top and bottom, and a rotating block is rotatably connected in each movable slot. A spring abuts between the bottom of the rotating block and the bottom of the movable slot.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, by setting a sliding frame and a first screw, allows the sliding frame to work with the rotating block and the first screw to detect the tensile strength of the gear shaft. The setting of the sink groove facilitates the rotation of the rotating block and the sliding frame to be rotatably connected and to move synchronously in the horizontal direction, so that the mounting ring can realize the detection functions of tensile strength and torsional strength.

[0017] This invention features a positioning mechanism that uses keyways at both ends of the gear shaft to stably fix it between two mounting rings. This allows the gear shaft to be tested for tensile strength in the horizontal direction, as well as for slight torsional strength via the connecting column and connector. The fixing block facilitates the fixed placement of the gear shaft, and the movable sliding block effectively and stably fixes the gear shaft to the two mounting rings, ensuring that the gear shaft remains stable during strength testing and does not slip, thus preventing any impact on the accuracy of the test results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a gear shaft strength testing device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the connecting column and connecting head structure of a gear shaft strength testing device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the rotating block structure of a gear shaft strength testing device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the gear shaft structure of a gear shaft strength testing device proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning mechanism of a gear shaft strength testing device proposed in this utility model;

[0023] Figure 6This is a schematic diagram of the rotating block of the gear shaft strength testing device proposed in this utility model, showing its unfolded and closed states.

[0024] In the diagram: 1. Testing platform; 2. Sliding frame; 3. First screw; 4. Motor box; 5. Rotating block; 6. Sinking groove; 7. Connecting column; 8. Connecting head; 9. Mounting ring; 10. Opening; 11. Positioning mechanism; 12. Fixing block; 13. Limiting block; 14. Slide groove; 15. Sliding block; 16. Second screw; 17. Handle; 18. Movable groove; 19. Rotating block; 20. Spring; 21. Gear shaft; 22. Keyway. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1-6 A gear shaft strength testing device includes a testing platform 1 and a mounting ring 9. Two mutually symmetrical sliding frames 2 are slidably connected to the top of the testing platform 1. Rotating blocks 5 are rotatably connected to the top of the two sliding frames 2. Connecting columns 7 are fixedly connected to the back of the two rotating blocks 5. Mounting ring 9 is fixedly connected to the opposite face of the two rotating blocks 5. A positioning mechanism 11 including a fixed block 12 and a sliding block 15 is provided in the middle of the mounting ring 9.

[0027] It also includes a gear shaft 21, with keyways 22 at both ends of the gear shaft 21;

[0028] A fixing block 12 is fixedly connected to one side of the central hole of the mounting ring 9, and a sliding groove 14 is provided on the other side of the central hole of the mounting ring 9. A sliding block 15 is slidably connected in the sliding groove 14. The length of the sliding block 15 is greater than the length of the fixing block 12. A second screw 16 is threadedly connected to the center of the sliding block 15. The end of the second screw 16 away from the fixing block 12 passes through the mounting ring 9. The sliding frame 2 can be used with the rotating block 5 and the first screw 3 to test the tensile strength of the gear shaft 21. The positioning mechanism 11 can use the keyways 22 opened at both ends of the gear shaft 21 to stably fix the gear shaft 21 between the two mounting rings 9, so that the gear shaft 21 can be tested for tensile strength in the horizontal direction, and can also be tested for slight torsion through the connecting column 7 and the connecting head 8. The fixing block 12 facilitates the fixed placement of the gear shaft 21, and together with the movable sliding block 15, it can effectively fix the gear shaft 21 stably on the two mounting rings 9, so that the gear shaft 21 will not slip during the strength test and affect the accuracy of the test results.

[0029] As a technical optimization of this utility model, a motor box 4 is fixedly installed at the top center of the testing platform 1. A dual-axis motor is installed inside the motor box 4. The two output shafts of the dual-axis motor are fixedly connected to first screws 3. The threads of the two first screws 3 are in opposite directions, and the two first screws 3 are respectively threaded to the bottom of the two sliding frames 2. By driving the two first screws 3 to rotate through the dual-axis motor, the two sliding frames 2 slide in opposite directions, thereby applying a force to the gear shaft 21 to test the tensile strength.

[0030] As a technical optimization of this utility model, a recessed groove 6 is provided on the outer wall of the rotating block 5, and the connection between the sliding frame 2 and the rotating block 5 is rotatably connected by an annular block adapted to the recessed groove 6. The setting of the recessed groove 6 facilitates the rotatable connection between the rotating block 5 and the sliding frame 2, as well as their synchronous horizontal translation, enabling the mounting ring 9 to perform the functions of detecting tensile strength and torsional strength.

[0031] As a technical optimization of this utility model, a connector 8 is provided at the end of the connecting column 7. The connector 8 can be connected to an external torque machine. The connecting column 7 is slidably connected to a fixed plate fixedly connected to the top of the testing table 1. After the connector 8 is connected to the external torque machine, the torque applied by the external torque machine can act on the gear shaft 21.

[0032] As a technical optimization of this utility model, the top of the mounting ring 9 has an opening 10 that communicates with the center of the mounting ring 9, and the width of the opening 10 is greater than the diameter of both ends of the gear shaft 21. The opening 10 facilitates the placement and removal of the gear shaft 21.

[0033] As a technical optimization of this utility model, the top and bottom ends of the fixing block 12 are fixedly connected to the limiting block 13, and the end of the second screw 16 is fixedly connected to the handle 17. The handle 17 facilitates manual operation.

[0034] As a technical optimization of this utility model, four movable slots 18 are symmetrically opened at the top and bottom of the sliding block 15. A rotating block 19 is rotatably connected in each movable slot 18, and a spring 20 abuts between the bottom of the rotating block 19 and the bottom of the movable slot 18. The limiting block 13 and the unfolded rotating block 19 simultaneously limit the two sides of the gear shaft 21, which can effectively fix the gear shaft 21 on the fixing block 12 and the sliding block 15. The rotating block 19 can be stored in the movable slot 18. Since a qualified gear shaft 21 will not rotate beyond the range in the torsional strength test, that is, the relative position of the two ends of the gear shaft 21 remains unchanged when subjected to torque, the rotating block 19 and the spring 20 will not have any displacement that affects stability.

[0035] In use, the gear shaft 21 is horizontally placed into the center hole of the mounting ring 9 through the openings 10 at both ends. When the two keyways 22 are on the same plane as the fixing blocks 12, the gear shaft 21 is pushed so that the two keyways 22 slide into the two fixing blocks 12 respectively, until the side wall of the gear shaft 21 abuts against the limiting block 13. The handle 17 is manually turned to drive the second screw 16 to rotate and push the sliding block 15 to slide along the slide groove 14 towards the fixing block 12. As the sliding block 15 slides, the rotating block 19 disengages from the slide groove 14, the spring 20 loses its force and resets, pushing the rotating block 19 to rotate out of the movable groove 18. At this time, the sliding block 15 continues to slide and enters the keyway 22 until the side wall of the rotating block 19 abuts against the side wall of the gear shaft 21, thus completing the gear shaft installation. With 21 fixed, the dual-shaft motor in the start motor box 4 drives the two first screws 3 to apply force to the two sliding frames 2 respectively. At the same time, the two sliding frames 2 apply force to the rotating block 5, the mounting ring 9, and the gear shaft 21 to test the tensile strength of the gear shaft 21. After the tensile strength test is completed, the external torque machine is connected to the two connectors 8. The external torque machine applies torsional force to the connectors 8 to test the torsional strength of the gear shaft 21. After the test is completed, the reverse handle 17 drives the second screw 16 to rotate and pull the sliding block 15 into the slide groove 14. During the process of sliding block 15 being stored, when the top of the rotating block 19 abuts against the outer wall of the slide groove 14, it is compressed by the spring 20 and the rotating block 19 is stored into the movable groove 18, so the gear shaft 21 can be removed.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gear shaft strength detection device, comprising a detection table (1) and a mounting ring (9), characterized in that: The top of the testing platform (1) is slidably connected to two mutually symmetrical sliding frames (2), the top of the two sliding frames (2) is rotatably connected to a rotating block (5), the two rotating blocks (5) are fixedly connected to a connecting column (7) on opposite sides, the two rotating blocks (5) are fixedly connected to an installation ring (9) on opposite sides, and a positioning mechanism (11) including a fixed block (12) and a sliding block (15) is provided in the middle of the installation ring (9). It also includes a gear shaft (21), which has keyways (22) at both ends; A fixing block (12) is fixedly connected to one side of the center hole of the mounting ring (9), and a sliding groove (14) is provided on the other side of the center hole of the mounting ring (9). A sliding block (15) is slidably connected in the sliding groove (14). The length of the sliding block (15) is greater than the length of the fixing block (12). A second screw (16) is threadedly connected to the center of the sliding block (15). The end of the second screw (16) away from the fixing block (12) passes through the mounting ring (9).

2. The gear shaft strength detection device according to claim 1, characterized by: The testing platform (1) has a motor box (4) fixedly installed at the top center. A dual-axis motor is installed inside the motor box (4). The two output shafts of the dual-axis motor are fixedly connected to the first screw (3). The threads of the two first screws (3) are opposite. The two first screws (3) are respectively threaded to the bottom of the two sliding frames (2).

3. The gear shaft strength detection device according to claim 1, characterized by: The outer wall of the rotating block (5) is provided with a sinking groove (6), and the connection between the sliding frame (2) and the rotating block (5) is rotatably connected by an annular block that is adapted to the sinking groove (6).

4. The gear shaft strength detection device according to claim 1, characterized by: The end of the connecting column (7) is provided with a connector (8), which can be connected to an external torque machine. The connecting column (7) is slidably connected to a fixed plate fixedly connected to the top of the testing table (1).

5. The gear shaft strength detection device according to claim 1, characterized by: The top of the mounting ring (9) has an opening (10) that communicates with the center of the mounting ring (9), and the width of the opening (10) is greater than the diameter of both ends of the gear shaft (21).

6. The gear shaft strength testing device according to claim 1, characterized in that: The top and bottom of the fixing block (12) are fixedly connected to the limiting block (13), and the end of the second screw (16) is fixedly connected to the handle (17).

7. The gear shaft strength testing device according to claim 1, characterized in that: The sliding block (15) has four movable slots (18) symmetrically opened at the top and bottom. Each movable slot (18) is rotatably connected to a rotating block (19). A spring (20) abuts between the bottom of the rotating block (19) and the bottom of the movable slot (18).

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