Fatigue testing machine for torsional spring with high torsional strength

Abstract

The utility model belongs to the technical field of torsional spring fatigue testing machines, and particularly relates to a high-torsional-strength torsional spring fatigue testing machine which comprises a machine frame, a rotating platform is installed at the top end of the machine frame, a fixing block is arranged at the top end of the rotating platform, a handle is installed at the top end of the machine frame, the handle is connected with the fixing block, and the fixing block is connected with the rotating platform. The top end of the rotating platform is connected with a fixing column, the surface of the fixing column is sleeved with a torsional spring body, the top end of the fixing column is movably connected with a telescopic column, a servo motor is installed in the fixing column, a lead screw is installed on an output shaft of the servo motor, and a sliding groove is formed in the fixing column. According to the utility model, through the cooperation among the servo motor, the screw rod, the slide block and the slide groove, the telescopic column can be lifted in the fixed column, the design can adapt to torsion spring bodies with different heights, the problem of unstable clamping caused by the fact that the height of the torsion spring body exceeds the height of the fixed column is effectively avoided, and the test accuracy is significantly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to torsional spring fatigue testing machine technical field, concretely relates to a high torsional strength torsional spring fatigue testing machine. BACKGROUND

[0002] Torsional spring fatigue testing machine is mainly applied to the field such as automobile manufacturing, aerospace, mechanical manufacturing.In the field of automobile manufacturing, torsional spring is the key component in automobile suspension system and steering system, and torsional spring fatigue testing machine can carry out strict torsional fatigue life test and static torsional rigidity, strength test to it, ensure the reliability and durability of torsional spring in the process of automobile driving, improve the safety and comfort of automobile.

[0003] When using torsional spring fatigue testing machine, one challenge is the diversity of torsional spring height, because the height of traditional clamping mechanism is often fixed.When the height of torsional spring exceeds the containing range of clamping mechanism, it will lead to unstable clamping, which not only affects the accuracy of test, but also reduces test result. UTILITY MODEL CONTENTS

[0004] The utility model discloses a high torsional strength torsional spring fatigue testing machine, and aims at solving the problem of the challenge of the diversity of torsional spring height when using torsional spring fatigue testing machine in prior art, because the height of traditional clamping mechanism is often fixed.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high torsional strength torsional spring fatigue testing machine, including the frame, the top of frame installs the rotating platform, the top of rotating platform is provided with fixed block, the top of frame installs the handle, the handle is connected with fixed block, the top of rotating platform is connected with fixed column, the surface of fixed column is sleeved with torsional spring body, the top of fixed column swing joint has telescopic column, the inside of fixed column is installed with servo motor, the output shaft of servo motor is installed with lead screw, the inside of fixed column is set up with the sliding slot, the end of lead screw is installed with sliding block.

[0006] As a preferred high torsional strength torsional spring fatigue testing machine of the utility model, the lead screw extends to the inside of telescopic column, and the lead screw is screw connected with the telescopic column.

[0007] As a preferred high torsional strength torsional spring fatigue testing machine of the utility model, the telescopic column is slidably connected with the fixed column through the sliding block and the sliding slot.

[0008] As a preferred embodiment of the high torsional strength torsion spring fatigue testing machine of this utility model, the telescopic column can be connected to the fixed column by a screw rod to form a threaded lifting connection.

[0009] As a preferred embodiment of the high torsional strength torsion spring fatigue testing machine of this utility model, a support block is installed at the bottom end of the frame, and a support leg is threadedly connected to the bottom end of the support block.

[0010] As a preferred embodiment of the high torsional strength torsion spring fatigue testing machine of this utility model, the support leg can be connected to the machine frame in a lifting manner through the support block.

[0011] As a preferred embodiment of the high torsional strength torsion spring fatigue testing machine of this utility model, a level bubble is installed at the top of the frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Through the cooperation of servo motor, lead screw, slider and slide, telescopic column can be raised and lowered inside fixed column. This design can adapt to torsion spring body of different heights, effectively avoiding the problem of unstable clamping caused by the height of torsion spring body exceeding the fixed column, thus significantly improving the accuracy of testing.

[0014] The level bubble and support legs allow the frame to be calibrated to a horizontal position. This effectively prevents uneven torque loading and measurement errors caused by frame tilt, thereby further improving the accuracy and reliability of test data. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate 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, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the front view of the main body structure of this utility model;

[0018] Figure 3 This is a sectional view of the connection structure between the fixed column and the telescopic column of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the support block and the support leg of this utility model.

[0020] In the diagram: 1. Frame; 2. Rotating platform; 3. Fixed block; 4. Handle; 5. Fixed column; 6. Torsion spring body; 7. Telescopic column; 8. Servo motor; 9. Lead screw; 10. Slider; 11. Slide groove; 12. Support block; 13. Support leg; 14. Horizontal bubble. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 The present invention provides the following technical solution: a high torsional strength torsion spring fatigue testing machine, comprising a frame 1, a rotating platform 2 mounted on the top of the frame 1, a fixed block 3 set on the top of the rotating platform 2, a handle 4 mounted on the top of the frame 1, the handle 4 being connected to the fixed block 3, a fixed column 5 connected to the top of the rotating platform 2, a torsion spring body 6 sleeved on the surface of the fixed column 5, a telescopic column 7 movably connected to the top of the fixed column 5, a servo motor 8 installed inside the fixed column 5, a lead screw 9 mounted on the output shaft of the servo motor 8, a sliding groove 11 opened inside the fixed column 5, and a slider 10 mounted on the end of the lead screw 9.

[0023] Preferably, the lead screw 9 extends into the interior of the telescopic column 7, and the lead screw 9 and the telescopic column 7 are connected by a thread.

[0024] In practical use, the lead screw 9 is threadedly connected to the telescopic column 7. After the telescopic column 7 is in its limit position, the lead screw 9 starts to rotate via the servo motor 8, which can drive the telescopic column 7 to rise and fall. As a result, the height between the telescopic column 7 and the fixed column 5 can be changed.

[0025] Preferably, the telescopic column 7 can be slidably connected to the fixed column 5 via the slider 10 and the groove 11.

[0026] In practical use, the slider 10 and the slide groove 11 allow the telescopic column 7 to rise and fall inside the fixed column 5 without rotation, ensuring that the position of the telescopic column 7 does not change. This guarantees the stability of the telescopic column 7's rise and fall.

[0027] Preferably, the telescopic column 7 can be connected to the fixed column 5 via a screw rod 9 to form a threaded lifting connection.

[0028] In practical use, the telescopic column 7 moves along the thread on the surface of the lead screw 9. The telescopic column 7 can be moved out from the inside of the fixed column 5, thereby adjusting the height of the telescopic column 7 and the fixed column 5 to meet the needs of the torsion spring body 6 at different heights.

[0029] Preferably, a support block 12 is installed at the bottom of the frame 1, and a support leg 13 is threadedly connected to the bottom of the support block 12.

[0030] In practical use, the connection of the support leg 13 can stably place the frame 1, thereby improving the stability of the placement.

[0031] Preferably, the support leg 13 can be connected to the frame 1 in a lifting manner through the support block 12.

[0032] In actual use, the support leg 13 is threadedly connected to the support block 12. The support leg 13 can be manually rotated to move out of the support block 12, thereby adjusting the level of the frame 1.

[0033] Preferably, a horizontal bubble 14 is installed at the top of the frame 1.

[0034] In practical use, the level bubble 14 is used to assist in the adjustment of the support leg 13, thereby ensuring the level adjustment of the frame 1.

[0035] Working principle: The torsion spring fatigue testing machine consists of a frame 1, a rotating platform 2, a fixed block 3, and a handle 4. The model number of this torsion spring fatigue testing machine is LW-2205-Torsion Strength Torsional Durability Testing Machine. The rotating platform 2 works by using the output shaft of a stepper motor to drive its rotation. The torsion spring fatigue testing machine is then connected to a computer, facilitating data feedback during high-torsional-strength torsion spring fatigue testing.

[0036] Furthermore, the torsion spring body 6 is manually fitted onto the fixed post 5. Then, the handle 4 is lowered, which in turn lowers the fixed block 3. The legs at both ends of the torsion spring body 6 then connect to the limiting posts at the bottom of the fixed block 3 and the top of the rotating platform 2, respectively. Subsequently, after the rotating platform 2 begins to rotate clockwise, the limiting posts of the rotating platform 2 cause the torsion spring body 6 to undergo a high torsional strength test. The top of the torsion spring body 6 is restricted by the limiting post at the bottom of the fixed block 3. The test data is then fed back to the computer.

[0037] At this point, if the height of the torsion spring body 6 is higher than that of the fixed post 5, the servo motor 8 is manually connected and started. Then, the output shaft of the servo motor 8 drives the lead screw 9 to rotate, and the telescopic column 7 begins to move along the threads on the surface of the lead screw 9. Subsequently, the telescopic column 7 moves out from inside the fixed post 5. During its movement, the telescopic column 7 drives the slider 10 to slide along the groove 11, thus limiting the rotation of the telescopic column 7 to prevent it from affecting its engagement with the lead screw 9. Afterwards, once the telescopic column 7 extends to the same height as the torsion spring body 6, the servo motor 8 stops operating. This method can accommodate torsion spring bodies 6 of different heights, effectively avoiding the problem of unstable clamping caused by the height of the torsion spring body 6 exceeding that of the fixed post 5, thereby significantly improving the accuracy of the test.

[0038] Next, the support leg 13 is manually rotated, causing it to rotate out from inside the support block 12. The spirit level 14 is then manually observed to check the horizontal state of the frame 1. This effectively prevents uneven torque loading and measurement errors caused by frame 1 tilting, thus further improving the accuracy and reliability of the test data. Because the torsion spring fatigue testing machine has a rotating platform 2, the vibration generated by the stepper motor of the rotating platform 2 is transmitted to the frame 1. If the frame 1 is not horizontal, it will move, affecting the accuracy and reliability of the test data.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high torsional strength torsion spring fatigue testing machine, comprising a frame (1), characterized in that: A rotating platform (2) is installed at the top of the frame (1), a fixed block (3) is provided at the top of the rotating platform (2), a handle (4) is installed at the top of the frame (1), the handle (4) is connected to the fixed block (3), a fixed column (5) is connected at the top of the rotating platform (2), and a torsion spring body (6) is sleeved on the surface of the fixed column (5). The top of the fixed column (5) is movably connected to a telescopic column (7), a servo motor (8) is installed inside the fixed column (5), a lead screw (9) is installed on the output shaft of the servo motor (8), a sliding groove (11) is opened inside the fixed column (5), and a slider (10) is installed at the end of the lead screw (9).

2. The high torsional strength torsion spring fatigue testing machine according to claim 1, characterized in that: The lead screw (9) extends into the interior of the telescopic column (7), and the lead screw (9) and the telescopic column (7) are connected by threads.

3. The high torsional strength torsion spring fatigue testing machine according to claim 1, characterized in that: The telescopic column (7) can be slidably connected to the fixed column (5) through the slider (10) and the groove (11).

4. The high torsional strength torsion spring fatigue testing machine according to claim 1, characterized in that: The telescopic column (7) can be connected to the fixed column (5) by means of a screw rod (9) to form a threaded lifting connection.

5. The high torsional strength torsion spring fatigue testing machine according to claim 1, characterized in that: A support block (12) is installed at the bottom of the frame (1), and a support leg (13) is threadedly connected to the bottom of the support block (12).

6. The high torsional strength torsion spring fatigue testing machine according to claim 5, characterized in that: The support leg (13) can be connected to the frame (1) in a lifting manner through the support block (12).

7. The high torsional strength torsion spring fatigue testing machine according to claim 6, characterized in that: A level bubble (14) is installed at the top of the frame (1).

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